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With means for determining position of a device placed within a body

Subclass of:

600 - Surgery

600300000 - DIAGNOSTIC TESTING

600407000 - Detecting nuclear, electromagnetic, or ultrasonic radiation

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DocumentTitleDate
20110184274ELECTRODE CONFIGURATIONS FOR LEADS OR CATHETERS TO ENHANCE LOCALIZATION USING A LOCALIZATION SYSTEM - An exemplary method includes positioning a lead in a patient where the lead has a longitudinal axis that extends from a proximal end to a distal end and where the lead includes an electrode with an electrical center offset from the longitudinal axis of the lead body; measuring electrical potential in a three-dimensional potential field using the electrode; and based on the measuring and the offset of the electrical center, determining lead roll about the longitudinal axis of the lead body where lead roll may be used for correction of field heterogeneity, placement or navigation of the lead or physiological monitoring (e.g., cardiac function, respiration, etc.). Various other methods, devices, systems, etc., are also disclosed.07-28-2011
20090187097Electrocardiogram Reconstruction From Implanted Device Electrograms - A method of reconstruction of the standard 12-lead surface EKG given values of the electrical potential from an implanted medical device is described. This implanted device can be oriented in an arbitrary fashion and reconstruction technique is obtained through physical measurement of the orientation of the implanted device or correlation with a standard 12-lead EKG obtained from the patient.07-23-2009
20090221907LOCATION SYSTEM WITH VIRTUAL TOUCH SCREEN - Control of an invasive medical instrument during a medical procedure is achieved using a system that includes magnetic field-based location facilities. Magnetic field sensors are placed in a medical instrument, e.g., a probe, and in an interface device to enable respective positions of the probe and the interface device to be ascertained by a location processor when the sensors are exposed to a magnetic field. The interface device is disposed such that an operator can control the medical instrument and the interface device concurrently. A display device, which can comprise a virtual reality display, is responsive to movements of the interface device as determined by the location processor to control the medical instrument, invoke various functions of the system, e.g., image manipulation, and otherwise facilitate the medical procedure via a graphical user interface.09-03-2009
20120172713SYSTEM AND METHOD FOR RENDERING AN IMAGE OF AN ELONGATE MEDICAL DEVICE - A system for visually rendering an elongate medical device in a body is provided. The system includes an electronic control unit configured to find a measured physical location for each of a plurality of position sensors on the elongate medical device. The electronic control unit is further configured to apply a spline function to each of the measured physical locations to determine a display location for each position sensor. The electronic control unit is further configured to interpolate between display locations of adjacent position sensors to identify display locations for portions of the elongate medical device between adjacent position sensors. The electronic control unit is further configured to generate image data for display of an image of the elongate medical device including the display locations of the position sensors and the display locations of the portions of the elongate medical device between adjacent position sensors.07-05-2012
20100016709SYSTEM AND METHOD OF RECORDING AND DISPLAYING IN CONTEXT OF AN IMAGE A LOCATION OF AT LEAST ONE POINT-OF-INTEREST IN A BODY DURING AN INTRA-BODY MEDICAL PROCEDURE - A method of displaying at least one point-of-interest of a body during an intra-body medical procedure. The method is effected by (a) establishing a location of the body; (b) establishing a location of an imaging instrument being for imaging at least a portion of the body; (c) defining at least one projection plane being in relation to a projection plane of the imaging instrument; (d) acquiring at least one point-of-interest of the body; and (e) projecting said at least one point-of-interest on said at least one projection plane; such that, in course of the procedure, the locations of the body and the imaging instrument are known, thereby the at least one point-of-interest is projectable on the at least one projection plane even in cases whereby a relative location of the body and the imaging instrument are changed.01-21-2010
20100160772Adaptable Image Guided Delivery System - A navigation element for delivery of a therapy delivery system and method of enabling navigation of a therapy delivery system. The navigation element for a therapy delivery system comprises a flexible elongate tubular sheath having a lumen extending longitudinally therethrough, the lumen of the tubular body being sized to fit over a catheter; and an electromagnetic receiver assembly within the tubular body, the receiver assembly comprising a receiver coil and a conductor coupled to the receiver coil, the conductor coupled to the receiver coil and extending towards a proximal end of the tubular sheath.06-24-2010
20100160771Method and Apparatus for Performing a Navigated Procedure - A system can be used to navigate or guide an instrument or device into an anatomy of a patient. The navigation can occur with the use of image data acquired of the patient. The image data can be registered to the patient space for navigation. One or more tracking devices can be the associated with the patient and with guiding instruments for tracking guiding devices relative to the patient.06-24-2010
20100160773AUTOMATIC QUANTITATIVE VESSEL ANALYSIS AT THE LOCATION OF AN AUTOMATICALLY-DETECTED TOOL - Apparatus and methods are described including inserting a tool into a blood vessel, and, while the tool is within the blood vessel, acquiring an extraluminal image of the blood vessel. In the extraluminal image of the blood vessel, a location of a portion of the tool with respect to the blood vessel is detected automatically. In response to detecting the location of the portion of the tool, a target portion of the blood vessel that is in a vicinity of the portion of the tool is designated automatically. Using the extraluminal image, quantitative vessel analysis is performed on the target portion of the blood vessel. Other embodiments are also described.06-24-2010
20100056904IMAGE GUIDED INTERVENTION - Image guidance on a computer screen in the patient's vascular system with reduced use of toxic contrast agent and X-ray radiation is obtained by providing anatomical and functional images obtained preferably from an MR Imaging system. A fibre optic device which uses strain measurement to provide an image of the shape and location of the fiber is used to provide spatial information of the elongate guide member as it is pushed through the vascular system with this spatial information being registered to the image of the vascular system by registering the location of the fiber/guide in the image prior to insertion using markers visible in the MR image.03-04-2010
20100152571COMBINATION OF ELECTROMAGNETIC AND ELECTROPOTENTIAL LOCALIZATION - A navigation system or combination of navigation systems can be used to provide two or more types of navigation or modalities of navigation to navigate a single instrument. The single instrument can be positioned within the patient and tracked. For example, both an Electromagnetic (EM) and Electropotential (EP) navigation system can be used to navigate an instrument within a patient.06-17-2010
20130046172METHODS AND SYSTEMS FOR LOCATING A FEEDING TUBE INSIDE OF A PERSON - A system for detecting the location of an exit point of an object in a person's body includes a feeding tube, and a light source configured to generate light coupled to a light transmitting element. The light transmitting element transmits the light through an exit point. A light source sensor detects the light and a signal is generated indicating the detection of the light. A method for using the system includes inserting a feeding tube into a patient and generating light that is transmitted to an exit point. Detecting light transmitted from the exit point and generating an indicator signal as a function of the detected light.02-21-2013
20130030286IMAGE GUIDED SURGERY TRACKERS USING MULTIPLE ASYNCHRONOUS SENSORS - An apparatus and related methods using a variety of heterogeneous sensors to accurately track, in real time, the location of the tip of a surgical instrument inside the human body. The system accounts for real time changes in the surrounding environment during surgery, and when integrated with noninvasive image-guided surgery (IGS), this invention makes IGS possible and safe without tedious offline calibration. Sensors include, but are not limited to, optical, electromagnetic (EM), and sonar.01-31-2013
20130030285SYSTEM AND METHOD FOR INTEGRATING MULTIPLE DATA SOURCES INTO AN X-RAY IMAGE REFERENTIAL - A method for integrating multiple data sources into an X-ray image referential includes generating an X-ray image of a subject. The method also includes collecting information from sensors of a catheter disposed within the subject. The method further includes generating the X-ray image referential on a coordinate system by merging a model of an anatomy and the collected information from the sensors of the catheter to the X-ray image, wherein the X-ray image referential includes a display of a trace of a catheter. In addition, the method includes displaying the X-ray image referential on a display.01-31-2013
20130085384MEDICAL-SURGICAL DEVICES - An embryo replacement catheter has a flexible extruded shaft of a transparent polyurethane with a bore extending along its length. Gas bubbles of a diameter in the range 5.mu. to 10.mu. are incorporated into the thickness of the wall of the shaft by adding gas during extrusion. The bubbles are selected to increase the visibility of the catheter under ultrasound imaging whilst still enabling material flowing along the catheter to be seen. The inventive catheter is not confined to embryo replacement catheters.04-04-2013
20130085381ASSEMBLIES, SYSTEMS, AND METHODS FOR INFUSING THERAPEUTIC AGENTS INTO THE BODY - An infusion catheter assembly has the ability to infinitely titrate the length of a porous fluid distribution section in situ. The infusion catheter assembly thereby provides a length of infusion that can be infinitely varied over a prescribed range, to control the effective infusion length and the rate of infusion. Using the infusion catheter assembly, a physician has the capability to treat only the length of the vessel desired, thereby preventing excessive drug/patient exposures. The porous fluid distribution section can include an array of spaced apart apertures that vary in size and/or density along the length of the porous fluid distribution section, such that the flow rate remains essentially constant for a given inlet pressure independent of the effective infusion length.04-04-2013
20130085383SYSTEMS, METHODS AND COMPUTER READABLE STORAGE MEDIA STORING INSTRUCTIONS FOR IMAGE-GUIDED THERAPIES - Systems, methods, and computer-readable storage media relate to providing image guidance that can improve the accuracy of interventional procedures, such biopsy sampling, for example, by accurately providing location information to guide the biopsy needle image. The systems, methods, and computer-readable storage media include generating a 3D multi-modality image that includes a pre-procedure reference image and an ultrasound image; and displaying at least one view, one of the views including a display in-real-time of a position of the interventional device on the multi-modality image with respect to the target site during the procedure.04-04-2013
20130085380SYSTEMS AND METHODS FOR PLANNING IMAGE GUIDED INTERVENTIONAL PROCEDURES - In some embodiments, a planning station can receive image data associated with an image(s) of an area of interest within a body of a patient and display the image(s) on a display device. A user can make a selection of a first interventional tool and a second interventional tool about which information is stored in a memory of the planning station. The planning station can execute a simulation viewable on the display device of a treatment plan for disposing the first and second interventional tools in the body of the patient and applying thermal energy from the first and second interventional tools to the body of the patient. The planning station can generate a thermal model of the thermal effect collectively produced on tissue of the patient by the first interventional tool and the second interventional tools and display the thermal model on the display device.04-04-2013
20130085382SYSTEM AND METHOD FOR SENSING SHAPE OF ELONGATED INSTRUMENT - An instrument system that includes an elongate body, an optical fiber, a localization sensor and a controller is provided. The optical fiber is operatively coupled to the elongate body and has a strain sensor provided on the optical fiber. The localization sensor is operatively coupled to the elongate body. The controller is operatively coupled to the optical fiber and to the localization sensor and is adapted to receive a first signal from the strain sensor, receive a second signal from the localization sensor, and determine a position or orientation of the elongate body based on the first signal and the second signal.04-04-2013
20100049033MEDICAL DEVICE POSITION DETECTION SYSTEM, MEDICAL DEVICE GUIDANCE SYSTEM, POSITION DETECTION METHOD OF MEDICAL DEVICE GUIDANCE SYSTEM, AND GUIDANCE METHOD OF MEDICAL DEVICE GUIDANCE SYSTEM - A medical device position detection system and a position detection method of a medical device guidance system, which are capable of detecting a direction of the medical device accurately, are provided. Included are a medical device introduced into a subject's body; a magnetic field response part that is disposed in the medical device, responds to a magnetic field by virtue of possessing a magnetization direction, and guides the medical device; a magnetic field generation part forming the magnetic field within the subject's body; a direction detection magnetic field control part generating a direction detection magnetic field from the magnetic field generation part for detecting the direction of the medical device; a response detection part detecting a response of the magnetic field response part due to the direction detection magnetic field; and a direction calculating part calculating the direction of the medical device according to the direction of the direction detection magnetic field and a detection result of the response detection part.02-25-2010
20100113919Catheter arangement for insertion into a blood vessel for minimally invasive intervention - A catheter arrangement for insertion into a blood vessel is proposed. The catheter arrangement has a catheter with a proximal catheter tip, in which an intervention tool is guided to remove a blood clot from the blood vessel. The intervention tool has an element for trapping a blood clot, in particular a spiral, in the region of its tip. With a view to minimizing x-ray radiation during the treatment and safe guidance of the intervention tool a position identification element is disposed in the region of the catheter tip.05-06-2010
20100076303Lateral Deployment Catheter - A probe or catheter, usable with a navigation system, includes a longitudinal lumen that curves outwardly through a sidewall prior to reaching a distal tip of the probe. The distal tip contains a position sensor as part of the navigation system. The lumen provides a working channel that guides a tool into a sidewall of a branched structure without requiring the distal end of the probe to be facing the branched structure.03-25-2010
20100076302Invisible Power Port ID Tattoo - A solution for use in medical procedures, comprises including a plurality of microspheres holding a fluorescent dye reactive to ultraviolet light and a base dye which, under white light, has one of a color substantially matching a color of a target portion of skin into which it is to be injected and which has, under UV light, a color slightly darker than a color of the target portion of skin. A method comprises identifying a target area of the skin to be accessed in a medical procedure and injecting into at least a portion of the target area a solution including a plurality of microspheres holding a colored dye and a fluorescent dye reactive to ultraviolet light in combination with locating the target area by illuminating the skin with ultraviolet light.03-25-2010
20120245458COMBINATION OF ULTRASOUND AND X-RAY SYSTEMS - The invention proposes to detect and track an intervention device in a 2D fluoroscopy image and to steer an ultrasound probe beam towards this device. Therefore, a method and corresponding system is proposed, by which an ultrasound probe is registered in a fluoroscopy image, wherein the registering includes the estimation of the position and of the orientation of the probe relative to the fluoroscopy.09-27-2012
20120245455Control System and Method for Precisely Guiding a Percutaneous Needle Toward the Prostate - A needle holder device for treating the prostate, involving a series of steps of inserting a needle into the prostate, has a rectal probe for ultrasonic 3D imaging and a computer for processing the image acquired by the probe and for computing the position of the needle relative to the prostate. The computer is controlled so as to periodically output information on the movement of the prostate after each of the insertion steps in order to validate the insertion parameters relative to a treatment schedule and, if need be, modifying the insertion parameters relative to the schedule in the event the movement is greater than a threshold value.09-27-2012
20130079628DYNAMIC REFERENCE METHOD AND SYSTEM FOR INTERVENTIONAL PROCEDURES - An interventional device configured for placement in or near an internal organ or tissue is provided. The interventional device includes a reference portion having three or more sensor elements. In one implementation, the interventional device and associated sensor elements provide dynamic referencing of the internal organ, tissue or associated vasculature after registration of the sensor data with images and/or volumetric representations of the internal organ or tissue.03-28-2013
20130079627AUGMENTED REALITY ULTRASOUND SYSTEM AND IMAGE FORMING METHOD - An augmented reality ultrasound system. The augmented reality ultrasound system includes: a probe for transmitting an ultrasound signal to an object and receiving the ultrasound signal reflected from the object; an image generating unit for generating an ultrasound image from the ultrasound signal transmitted from the probe; a photographing unit for photographing the object and the probe to obtain images thereof and recognizing information corresponding to movement of the probe by using the image of the photographed probe; an image modifying unit for modifying the ultrasound image transmitted from the image generating unit so as to reflect the movement of the probe by using the movement information of the probe transmitted from the photographing unit; and a display unit for displaying the ultrasound image transmitted from the image modifying unit.03-28-2013
20130035591SYSTEMS AND METHODS FOR AUTOMATICALLY INSERTING A NEEDLE INTO A LIVING SUBJECT - Embodiments disclosed herein are directed to systems and methods for automatically inserting a needle into an insertion-target region of a living subject in response to a machine-vision system locating the insertion-target region. In an embodiment, a needle insertion system includes a moveable needle configured to be inserted into a living subject, a machine-vision system configured to locate an insertion-target region of the living subject, control electrical circuitry, and an actuator coupled to the control electrical circuitry. The control electrical circuitry may be coupled to the machine-vision system to receive location information therefrom about the insertion-target region, and configured to output needle targeting instructions. The actuator may be coupled to the control electrical circuitry to receive the needle targeting instructions therefrom and coupled to the moveable needle. The actuator may be configured to move the moveable needle to the insertion-target region automatically in response to receiving the needle targeting instructions from the control electrical circuitry.02-07-2013
20130035589CATHETER LOCATOR APPARATUS AND METHOD OF USE - In one embodiment, a catheter locator apparatus is configured to determine the location of the tip of a catheter as it is inserted used in a human body. In one example embodiment, where a radiating coil is used in conjunction with a catheter, a coil locating device can be used to determine the distance the coil is from the device and hence its depth in the body of a patient.02-07-2013
20130035590SYSTEMS AND METHODS TO ASSIST WITH INTERNAL POSITIONING OF INSTRUMENTS - Systems and methods which facilitate the correct placement of an instrument internal to an object aided by an overlay superimposed on an image are disclosed. Exemplary embodiments facilitate placement of a needle tip within a patient's body using on overlay superimposed on a sonographic image. A superimposed overlay of embodiments is created by monitoring a fixed point of an external portion of the instrument in relation to an imaging transducer. Superimposed overlays provided according to embodiments provide one or more graphical target designator and one or more graphical instrument designator which, when controlled to be disposed in a predetermined position, indicate proper placement of the instrument.02-07-2013
20100145187Catheter - So that a catheter can be made visible in ultrasound images easily and with relatively little effort, and hence positional control of a catheter can be enabled with relatively little effort, an ultrasound marking recognizable in the body of a living being by means of ultrasound is provided at the distal end of a catheter, wherein the catheter has a lumen, and the ultrasound marking is arranged in the lumen near the distal end such that it is removable via a proximal end of the catheter.06-10-2010
20090171190MEDICAL DEVICE POSITION DETECTING SYSTEM, MEDICAL DEVICE GUIDING SYSTEM, AND POSITION DETECTING METHOD FOR MEDICAL DEVICE - Position detection of a medical device is prevented from being impossible even when the frequency characteristic of a magnetic induction coil is varied in accordance with the state of an external magnetic field for guiding the medical device. A medical device position detecting system is a medical device position detecting system which is inserted into the body of a subject and guided by an external magnetic field, and it is equipped with a resonance circuit that is mounted in the medical device, contains a magnetic induction coil having a magnetic material inside and generates an alternate magnetic field, an alternate magnetic field detecting device that is disposed at the outside of an operation region of the medical device and detects the alternate magnetic field generated by the magnetic induction coil, a position information calculator for calculating position information of the medical device on the basis of the detected alternate magnetic field, and a frequency setting unit for setting at least one of the frequency of the alternate magnetic field detected by the alternate magnetic field detecting device and the frequency of the alternate magnetic field generated by the magnetic induction coil on the basis of at least one of the intensity and direction of an external magnetic field at the position of the magnetic induction coil.07-02-2009
20130041254PROBE AND SYSTEM FOR USE WITH AN ULTRASOUND DEVICE - Disclosed are ultrasound devices and methods for use in guiding a subdermal probe during a medical procedure. A device can be utilized to guide a probe through the probe guide to a subdermal site. In addition, a device can include a detector in communication with a processor. The detector can recognize the location of a target associated with the probe. The processor can utilize the data from the detector and create an image of a virtual probe that can accurately portray the location of the actual probe on a sonogram of a subdermal area. In addition, disclosed systems can include a set of correlation factors in the processor instructions. As such, the virtual probe image can be correlated with the location of the actual probe.02-14-2013
20130041255Tissue Removal Device and Method of Use - A biopsy device for acquiring more than one tissue sample is disclosed. The biopsy device can have at least two tissue engaging elements, where at least one element contains a helical feature. A control mechanism can be used to spin an outer element relative to an internal element, resulting in transport of multiple tissue samples from the mass of tissue to an accessible collection chamber. The outer element may have a sharp distal end which may sever the samples from the mass of tissue. Samples may be stored sequentially in the collection chamber and be removed by the operator.02-14-2013
20130041253SYSTEMS AND METHODS FOR AUTOMATICALLY INSERTING A NEEDLE INTO A LIVING SUBJECT - Embodiments disclosed herein are directed to systems and methods for automatically inserting a needle into an insertion-target region of a living subject in response to a machine-vision system locating the insertion-target region. In an embodiment, a needle insertion system includes a moveable needle configured to be inserted into a living subject, a machine-vision system configured to locate an insertion-target region of the living subject, control electrical circuitry, and an actuator coupled to the control electrical circuitry. The control electrical circuitry may be coupled to the machine-vision system to receive location information therefrom about the insertion-target region, and configured to output needle targeting instructions. The actuator may be coupled to the control electrical circuitry to receive the needle targeting instructions therefrom and coupled to the moveable needle. The actuator may be configured to move the moveable needle to the insertion-target region automatically in response to receiving the needle targeting instructions from the control electrical circuitry.02-14-2013
20130041252ULTRASONIC TRACKING OF ULTRASOUND TRANSDUCER(S) ABOARD AN INTERVENTIONAL TOOL - In one aspect, an ultrasound receive beamformer (02-14-2013
20130041251IN VIVO SENSOR AND METHOD OF MAKING SAME - Implantable in vivo sensors used to monitor physical, chemical or electrical parameters within a body. The in vivo sensors are integral with an implantable medical device and are responsive to externally or internally applied energy. Upon application of energy, the sensors undergo a phase change in at least part of the material of the device which is then detected external to the body by conventional techniques such as radiography, ultrasound imaging, magnetic resonance imaging, radio frequency imaging or the like. The in vivo sensors of the present invention may be employed to provide volumetric measurements, flow rate measurements, pressure measurements, electrical measurements, biochemical measurements, temperature, measurements, or measure the degree and type of deposits within the lumen of an endoluminal implant, such as a stent or other type of endoluminal conduit. The in vivo sensors may also be used therapeutically to modulate mechanical and/or physical properties of the endoluminal implant in response to the sensed or monitored parameter.02-14-2013
20130041250METHODS AND APPARATUS FOR LOCATING ARTERIES AND VEINS USING ULTRASOUND - A method for targeting a blood vessel comprises acquiring ultrasound data, automatically determining a target sample volume, acquiring Doppler ultrasound data, and communicating an indicator of flow characteristics in the target sample volume. The ultrasound data is for a plane within a body. The target sample volume is determined at an intersection of a trajectory of an insertable instrument with the plane. The Doppler ultrasound data is acquired for at least the target sample volume at the intersection. The indicator of flow characteristics is based on the Doppler ultrasound data. An associated apparatus is also described.02-14-2013
20100099980POSITIONING TOOL - A method and apparatus are disclosed for a positioning tool that aids in the positioning of a treatment device under image guidance. The tool is positioned on the external surface of the patient's skin and comprises an alignment portion and an instrument positioning portion that may be viewed under an imaging means. The tool is also visible to the user without any imaging means. The tool is aligned with an internal target and provides a visual reference indication for the target location for orienting at least one treatment device at a desired treatment site relative to the internal target.04-22-2010
20100113917SYSTEM AND METHOD FOR TRACKING OBJECT - In one embodiment, a position transponder for operation inside the body of a subject is provided. The transponder comprises a variable resistor and a magneto resistor coupled to the variable resistor. The variable resistor comprises an electronic device having a gate terminal, a source terminal and a drain terminal and a sensor coil coupled to the electronic device between the gate terminal and the source terminal.05-06-2010
20120265056Guide Catheter With Radiopaque Filaments for Locating an Ostium - Flexible radiopaque filaments coupled to and extending from a distal end of a guide catheter are disclosed that aid a clinician in locating an ostium of a branch vessel. The filaments are at least partially formed of a radiopaque material and are designed to move with the blood flow. In a method of locating an ostium of a branch vessel or a fenestration of an implanted graft, at least some of the filaments enter the ostium or fenestration when the distal end of the guide catheter is placed proximal thereto. The filaments provide an accurate and quick indication of the ostium location without the need for a contrast agent.10-18-2012
20100041984Impedance sensing device and catheter system - A sensing system including a collection catheter and a sensing device. The sensing system can be used in determining an optimal location of a collection catheter for the removal of a medium from coronary circulation. The sensing system can also be used in determining the optimal time for the collection of blood containing a medium. The sensing system can further be used to maintain a baseline flow rate through at least a portion of the coronary circulation system during a medical procedure.02-18-2010
20090156929METHODS FOR IMAGING A DELIVERY SYSTEM - A method for imaging a delivery system is disclosed. The method includes positioning an implantable device within a delivery apparatus. The implantable device has a first base material that includes a mixture of which a first radiopaque material is a component and/or coating at least a portion of the first base material with a coating of which a first radiopaque material is a component. The delivery apparatus may be positioned relative to an imaging device. An image produced by the imaging device may be analyzed. It may be determined whether the delivery apparatus is ready to deploy an implantable device.06-18-2009
20100106009Tracking System Using Field Mapping - In some aspects, a method includes (i) causing current to flow among multiple sets of current injecting electrodes to generate a field in an organ, (ii) obtaining the positions of one or more measuring electrodes used for measuring the field generated by the current injecting electrodes, (iii) in response to the current flow, measuring the field at multiple locations in the organ using the one or more measuring electrodes, (iv) modeling the field using the measurements of the field from the one or more measuring electrodes and the positions of the one or more measuring electrodes, and (v) determining expected signal measurements of the field at additional locations within the organ using the model of the field.04-29-2010
20100106010CT-FREE SPINAL SURGICAL IMAGING SYSTEM - A system and method for generating three dimensional CT-type information from a conventional C-arm fluoroscope imaging system. A small number of fluoroscope images are used, taken from angles whose pose is determined by means of a three-dimensional target attached to the region of interest, aided by the participation of the surgeon or an image processing routine to pinpoint known anatomical features in the region of interest of the patient. This procedure enables the reconstruction of virtual images in any desired plane, even in planes other than those accessible by the C-arm imaging process, such as the axial plane of a vertebra. Use of this system and method of marking of the feature to be treated in a small number of angularly dissimilar images, enables the generation of CT-type information which can be used to accurately align a robotically guided surgical tool with the anatomical feature.04-29-2010
20100106011Method and apparatus for localizing an ultrasound catheter - An imaging system is provided with an ultrasound catheter and a controller coupled to the ultrasound catheter. The catheter includes a localizer sensor configured to generate positional information for the ultrasound catheter, and an imaging ultrasound sensor having a restricted field of view. The controller co-registers images from the imaging ultrasound sensor with positional information from the localizer sensor.04-29-2010
20090124891IMAGE GUIDED SURGERY SYSTEM - An image guided surgery system is disclosed that includes a position detection system which measures the position of a surgical instrument and displays the surgical instrument in its corresponding position in a CT-image or an MRI-image. The position detection system is provided with an indicator system which shows a region for which the position detection system is sensitive. Preferably, the camera unit of the position detection system incorporates at least two cameras and two semiconductor lasers for emitting separate laser beams that intersect and generate a visible marker within the region, each of the semiconductor lasers being mounted on the camera unit such that each of the laser beams substantially track the optical axis of each camera.05-14-2009
20090124890Method and a System for Assisting Guidance of a Tool for Medical Use - A system for assisting guidance of a tool manipulated by a practitioner relative to a portion of the human body. The system includes elements for making a three-dimensional first image of a first scene including the human body portion and a first reference associated therewith, elements for making a three-dimensional second image of a second scene including the tool and a second reference associated therewith, the second image being made relative to the first reference, elements for making a third image constituted by superposing the first and second images so that the representations of the first reference contained respectively in the first and second images substantially coincide, and elements for projecting the third image into the field of view of the practitioner's eye while manipulating the tool.05-14-2009
20100094126LIGHT-GUIDED TRANSLUMINAL CATHETER - Generally, the present invention is directed to a light-guided catheter for direct visualization of placement through the skin. An embodiment of the invention includes a method for transcutaneous viewing and guiding of intracorporeal catheters into a body that comprises inserting a catheter into the body having at least one lumen and internally illuminating the catheter with light capable of propagating through the blood and tissue to an external viewer outside of the body.04-15-2010
20120184844Method for Planning a Surgical Procedure - A method and system for identifying a portion of an image data is disclosed. The image data can include image data of an anatomy, such as a brain of a patient. The identified portion can be used for planning a procedure. The identified portions can include anatomical landmarks that can be used to determine anatomical targets of the patient. The plan can include a path or trajectory to reach the anatomical target.07-19-2012
20090043190"AUTOMATIC POINTING DEVICE FOR CORRECT POSITIONING OF THE DISTAL LOCKING SCREWS OF AN INTRAMEDULLARY NAIL" - Automatic pointing device for the correct positioning of the distal locking screws of an intramedullary nail, including means for image acquisition, processing and for guidance of the surgical instrument.02-12-2009
20110004094Bioabsorbable Target for Diagnostic or Therapeutic Procedure - An implantable device has a body that is substantially rigid and has an imageable shape. The body is further bioabsorbable and may contain permanent metallic elements to aid in its imaging. When the device is implanted in a resected cavity in soft tissue, it can cause the cavity to conform substantially to a known imageable shape. The implantable device is further imageable due to its attenuation properties being different from those of soft tissue such that the boundaries of the tissue corresponding to the predetermined shape can be determined.01-06-2011
20130090551ENDOSCOPIC LEAD IMPLANTATION METHOD - A method of implanting electrically conductive leads in the gastrointestinal musculature for stimulation of target tissues involves an endoscopic approach through the esophagus. An endoscope is inserted into the esophagus of a patient. The mucosal surface of the anterior esophagus is punctured in the region encompassing the lower esophageal sphincter (LES). A tunnel is created through the submucosa and exits at the muscularis propria, adventitia, or serosal side of the stomach. The lead is navigated further to the anterior abdominal wall. A first end of the lead remains within the gastrointestinal musculature while a second end of the lead is positioned just outside the anterior abdominal wall. The first end of the lead comprises at least one electrode. An implantable pulse generator (IPG) is implanted and operably connected to the second end of the lead to provide electrical stimulation to target tissues.04-11-2013
20130090554FOCUSED PROSTATE CANCER TREATMENT SYSTEM AND METHOD - Systems and methods for locating lesions in a prostate or other organ during a first intervention session, and for using that lesion location information during a second intervention session are presented. A module for detecting and reporting the position of a prostate in real time is disclosed. The module comprises a sensor which detects and electronic signal. An image registration system for mapping first-session 3D model information to a second-session 3D model is also presented, as is a prostate modeling facilitation tool which comprises a set of predefined 3D models of the prostate.04-11-2013
20130090552SYSTEM AND METHOD FOR SENSING SHAPE OF ELONGATED INSTRUMENT - An instrument system that includes a first optical fiber, a second optical fiber and a controller is provided. The first optical fiber is operatively coupled to an elongate body that is adapted to be placed inside a patient. The second optical fiber is operatively coupled to the patient, to an actuating element adapted to actuate the elongate body, or to a portion of an imaging system adapted to identify a location of the portion relative to the elongate body. The controller is operatively coupled to the first optical fiber and the second optical fiber and is adapted to receive a first signal from the strain sensor provided on the first optical fiber, receive a second signal from the strain sensor provided on the second optical fiber; and determine a position or orientation of the elongate body based on the first signal and based on the second signal.04-11-2013
20100137706METHOD OF, AND APPARATUS FOR, CONTROLLING MEDICAL NAVIGATION SYSTEMS - A method of operating a remote navigation system to that orients a medical device in a selected direction includes operating the remote navigation system to orient the medical device toward a point identified by the user on a two-dimensional map of a three-dimensional surface adjacent the medical device.06-03-2010
20090326369METHOD FOR ASCERTAINING THE POSITION OF A MEDICAL INSTRUMENT IN A BODY - The present invention relates to a method for ascertaining the position of the head of a medical instrument in a vascular system, wherein the instrument can be inserted into the vascular system of a body and describes a path at least partially inside the vascular system, and the position of the instrument head is calculated from structural data, length data and the relative position between a reference point and the vascular system, wherein the instrument is guided past the reference point, the structural data represents the structure of the vascular system, and the length data represents the length of the path between the reference point and the instrument head.12-31-2009
20090306497CALIBRATION METHOD FOR CATHETER TRACKING SYSTEM USING MEDICAL IMAGING DATA - This invention discloses an improved method for the calibration and tracking of an electromagnetic or acoustic based catheter within a catheter tracking space for use in cardiac intervention for a specific patient, utilizing prior-acquired medical imaging data for the patient.12-10-2009
20090093712Method and device for navigating a catheter through a blockage region in a vessel - The invention relates to a method for navigating a catheter with a catheter tip through a blockage region in a vessel, especially a coronary vessel, whereby the catheter is pushed forward under real-time radiological observation. The underlying objective of the invention is to arrange such a method in such a way that it permits especially simple, rapid and low risk navigation of a catheter through the blockage region in the vessel. For this purpose, in accordance with the invention a three-dimensional path through the blockage region is determined by reference to a set of sectional images or a 3D representation of the blockage region, recorded beforehand as part of a preliminary investigation, whereby a data set including the path coordinates is brought into register with the real-time radiological images, and whereby the path or a projection of the path is visualized on a display, overlaid on the real-time radiological images.04-09-2009
20130072789MICROROBOT SYSTEM FOR INTRAVASCULAR THERAPY AND METHOD OF CONTROLLING THE SAME - The present invention relates, in general, to a microrobot system for intravascular therapy and, more particularly, to a microrobot system for intravascular therapy, which removes thrombus, clots and occlusions that are clogging blood vessels using the fast rotary power of a spherical microrobot having protrusions, thus treating clogged blood vessels.03-21-2013
20130072785METHOD AND APPARATUS FOR ENHANCING NEEDLE VISUALIZATION IN ULTRASOUND IMAGING - A method of enhancing needle visualization in ultrasound imaging is provided. The method includes reducing overall gain in needle frames, and applying a nonlinear mapping to the needle frames, wherein the nonlinear mapping is configured to make strong signals stronger and make weak signals weaker after mapping.03-21-2013
20130072784SYSTEMS AND METHODS FOR PLANNING IMAGE-GUIDED INTERVENTIONAL PROCEDURES - In some embodiments, a planning station can receive image data associated with an image(s) of an area of interest within a body of a patient and display the image(s) on a display device. A user can make a selection of a first interventional tool and a second interventional tool about which information is stored in a memory of the planning station. The planning station can execute a simulation viewable on the display device of a treatment plan for disposing the first and second interventional tools in the body of the patient and applying thermal energy from the first and second interventional tools to the body of the patient. The planning station can generate a thermal model of the thermal effect collectively produced on tissue of the patient by the first interventional tool and the second interventional tools and display the thermal model on the display device.03-21-2013
20130072786IMAGE-GUIDED HEART VALVE PLACEMENT OR REPAIR - A device and method for valve replacement or valve repair is disclosed comprising the steps of acquiring an anatomical image of a patient, correlating the image to the patient, guiding a valve replacement delivery member or a valve repair delivery member within the patient while tracking the position of the delivery member in the patient, positioning the valve replacement member or valve repair member in a desired position to replace a valve or repair valve and removing the delivery member from the patient.03-21-2013
20130072788Method and System for Tracking Catheters in 2D X-Ray Fluoroscopy Using a Graphics Processing Unit - A method and system for detecting and tracking multiple catheters in a fluoroscopic image sequence in an integrated central processing unit and graphics processing unit framework is disclosed. A catheter electrode model is initialized in a first frame of the fluoroscopic image sequence. The catheter landmark candidates are detected, by a graphics processing unit, in the first frame of the fluoroscopic image sequence. The catheter electrode model is tracked, by a central processing unit, and is detected by the graphics processing unit, in subsequent frames of the fluoroscopic image sequence by detecting catheter landmark candidates in the subsequent frames of the fluoroscopic image sequence using at least one trained catheter landmark detector, and outputting the catheter model tracking and landmark detection results of for each frame of the fluoroscopic image sequence.03-21-2013
20130072783Indicating proximity of a body-insertable device to a destination region of interest - Described embodiments include a system, method, and computer program product. A described system includes a receiver circuit that receives a first reference image that includes an objective landmark subsurface feature of a mammalian body part, and receives a second reference image that includes a present-location landmark subsurface feature of the mammalian body part. The objective landmark subsurface feature has a first spatial relationship to a destination region of interest of the mammalian body part. The present-location landmark subsurface feature has a second spatial relationship to a distal end portion of a body-insertable device. The system includes a feature matching circuit that determines a substantial correspondence between the present-location landmark subsurface feature and the objective landmark subsurface feature. The system includes a proximity indicator circuit that generates informational data indicative of an operational proximity of the distal end portion of the body-insertable device to the destination region of interest.03-21-2013
20130060130THERAPEUTIC MICROROBOT SYSTEM FOR BRAIN AND SPINAL CORD DISEASES - Disclosed is a microrobot for the therapy of brain/spinal cord diseases. It comprises a microrobot comprising a driving unit having a magnet therein, and a therapeutic means or drug delivery means for treating a disease lesion; a microrobot driving module for performing and controlling various motions of the microrobot by generating an electromagnetic force through an electromagnetic coil system; an imaging module for imaging a thecal sac filled with cerebrospinal fluid, a ventricle, and the microrobot; a diagnosis module for diagnosing the brain/spinal cord disease, based on a pre-operative image produced by the imaging module; and a navigation module for planning a moving path for the microrobot, based on the pre-operative image produced by the imaging module and for monitoring the microrobot through an intraoperative image produced by the imaging module.03-07-2013
20110015518METHOD AND INSTRUMENT FOR SURGICAL NAVIGATION - An operating microscope including an optical unit for forming an image of an object plane in oculars of the microscope, an optoelectronic image receiver coupled to the microscope and optics to form images, of objects placed in a region between a front objective of the microscope and an object plane of the microscope, on the optoelectronic image receiver. The microscope has a magnification factor of the optics to form images, and a system to detect optical markings forming a markings pattern placed on a surgical instrument or an object placed in the region between the front objective of the microscope and the object plane of the microscope. The system calculates a geometrical position and orientation of the markings pattern in relation to the optoelectronic image receiver, relative to the microscope.01-20-2011
20090270722DEVICE FOR ASSISTING THE POSITIONING OF MEDICAL DEVICES - In one embodiment, a needle guide is attached to the end of an ultrasonic probe in a manner such that the needle will follow a known trajectory under control of the needle guide. The surgeon then positions the needle guide by looking at the ultrasound image formed from the ultrasound radiated from the probe. In one embodiment, the needle guide has a release mechanism that allows the needle (or other medical device) that had been positioned in the guide to remain in the patient when the probe is removed. In one embodiment, the needle guide is designed to be releasably mounted to a bracket which, in turn, is releasably mounted to the end of the probe.10-29-2009
20090270721INTRA-VENTRICULAR SUBSTANCE DELIVERY CATHETHER SYSTEM - A guide catheter and a needle catheter are disclosed. The guide catheter construction provides for maximum articulation of the deflectable tip and maximum torque response during rotation. The needle catheter may include a release mechanism that imparts a sudden force to the needle in order to facilitate tissue penetration.10-29-2009
20120226150VISUAL TRACKING AND ANNOTATON OF CLINICALLY IMPORTANT ANATOMICAL LANDMARKS FOR SURGICAL INTERVENTIONS - A visual tracking and annotation system for surgical intervention includes an image acquisition and display system arranged to obtain image streams of a surgical region of interest and of a surgical instrument proximate the surgical region of interest and to display acquired images to a user; a tracking system configured to track the surgical instrument relative to the surgical region of interest; a data storage system in communication with the image acquisition and display system and the tracking system; and a data processing system in communication with the data storage system, the image acquisition and display system and the tracking system. The data processing system is configured to annotate images displayed to the user in response to an input signal from the user.09-06-2012
20120226149Integrated Multi-Functional Endoscopic Tool - A system for extending the visual capabilities and working channel of a bronchoscope including a probe having optic and/or tracking capabilities at a distal tip thereof and capable of being advanced through the working channel of a standard bronchoscope. The probe also includes a working channel through which various diagnostic and treatment tools may be advanced.09-06-2012
20120226148MEDICAL DEVICE POSITION GUIDANCE SYSTEM WITH WIRELESS CONNECTIVITY BETWEEN A NONINVASIVE AND AN INVASIVE DEVICE - A medical device position guidance system having a noninvasive medical device communicable with an invasive medical device. The system provides outputs useful to assess the position of an invasive medical device in an animal, such as a human. A magnetic field is used to gather information about the position of the invasive device. Radio waves are used to communicate this information between the noninvasive device and the invasive device.09-06-2012
20120226147DEVICES, SYSTEMS, AND METHODS FOR LOCATING MAGNETIC INJECTION FILL PORTS - Devices, systems, and methods provide accurate and consistent identification of the center of a magnetic infusion port.09-06-2012
20120226146DEPLOYABLE MARKER AND METHOD FOR DEPLOYMENT - A marker for marking the location of an internal area in the human body comprising a cap unit, and at least one attachment unit affixed to the cap unit, the at least one attachment unit capable of piercing a surface of a region in response to a vertical force applied to the cap unit.09-06-2012
20120226145TRANSCUTANEOUS ROBOT-ASSISTED ABLATION-DEVICE INSERTION NAVIGATION SYSTEM - A robotic system for overlapping radiofrequency ablation (RFA) in tumor treatment is disclosed. The robot assisted navigation system is formed of a robotic manipulator and a control system designed to execute preoperatively planned needle trajectories. Preoperative imaging and planning is followed by interoperative robot execution of the ablation treatment plan. The navigation system combines mechanical linkage sensory units with an optical registration system. There is no requirement for bulky hardware installation or computationally demanding software modules. Final position of the first needle placement is confirmed for validity with the plan and then is used as a reference for the subsequent needle insertions and ablations.09-06-2012
20130066196DETERMINING AND VERIFYING THE COORDINATE TRANSFORMATION BETWEEN AN X-RAY SYSTEM AND A SURGERY NAVIGATION SYSTEM - The device enables the detection of positions of the navigation marking elements on a reference star by way of at least two projection images taken by an X-ray system at different pivoting angles of a C-arm. The positions of the navigation marking elements on the reference star are also calculated by a navigation system tracking camera. The transformation from the coordinate system of the navigation system into the coordinate system of the X-ray system is calculated from the position of the reference star detected by the X-ray system and the position of the reference star detected by the tracking camera. The navigation marking elements are located outside of the volume which is reconstructed by way of the imaging process in order to prepare tomographic images. The positions of the navigation marking elements are determined from two-dimensional projections. All the navigation marking elements need only be detected by at least two projection images.03-14-2013
20130066193CATHETER NAVIGATION USING IMPEDANCE AND MAGNETIC FIELD MEASUREMENTS - A method of operating a positioning system by registering a first coordinate system of a first positioning system in a second coordinate system of a second positioning system includes determining an interpolation function configured to register the first, non-orthonormal coordinate system in the second, orthonormal coordinate system. Fiducial pairs are collected by the respective positioning systems, each of which contain a respective coordinate in the respective coordinate system, both of which refer to the same physical point in three dimensional space. Establishing a working interpolation function involves an analysis of the fiducial pairs using a thin-plate spline algorithm. The method further includes repeatedly obtaining a first coordinate in the first coordinate system and determining a corresponding second coordinate in the second coordinate system in accordance with the interpolation function.03-14-2013
20130066192Axial Surgical Trajectory Guide, and Method of Guiding a Medical Device - A surgical trajectory guide to guide a medical device to a pivot point has a base that can be attached to a patient, an axial guide member connected with the base and aligned with a pivot point along a first axis in fixed relation to the base and a second axis perpendicular to the first axis. The guide member has a longitudinal axis, and is connected to the base such that the longitudinal axis always passes through the pivot point, and the axial guide member is prevented from rotating around the longitudinal axis. The guide further has at least one electronic angle sensor that can automatically sense a first angle of the axial guide member relative to the local gravity vector about the first axis and a second angle of the axial guide member relative to the local gravity vector about the second axis without having to level the base.03-14-2013
20130066195DEVICE AND METHOD FOR SAFE LOCATION AND MARKING OF A CAVITY AND SENTINEL LYMPH NODES - A subcutaneous cavity marking device percutaneously implantable in breast tissue during a biopsy procedure. The marking device including at least two implantable bodies, one made from a first material and another made from a second material wherein the first and second materials are different materials and the at least two implantable bodies are adapted to be inserted into a subcutaneous cavity created by removal of tissue. The at least two implantable bodies are detectable via non-invasive techniques as tissue cavity markers and at least one of the at least two detectable bodies is an electronic chip connected to the other of the at least two implantable bodies.03-14-2013
20130066194METHOD FOR PRODUCING A MINIATURE ELECTROMAGNETIC COIL USING FLEXIBLE PRINTED CIRCUITRY - An elongate medical device includes a sensor configured to detect one or more characteristics of an electromagnetic field in which the device is disposed. The sensor includes an electrically-insulative substrate, rectangular in shape, and a patterned, conductive trace disposed on the substrate. The patterned trace includes a plurality of diagonal sections parallel to one another, arranged with a relatively low pitch. The substrate is wrapped into a cylindrical shape thereby forming a three-dimensional spiral capable of functioning as a micro-electromagnetic sensor. A medical positioning system is responsive to the signal from the sensor to determine a position and/or orientation of the sensor.03-14-2013
20110021906Methods and Apparatus for Intraocular Brachytherapy - Methods and apparatus for intraocular brachytherapy are disclosed in which a cannula is introduced into the eye for delivery of radiation to a target tissue. Techniques for properly locating the cannula with respect to the target tissue, for protecting non-target tissue, for regulating heat generated by x-ray emitters, and for combining therapies are disclosed.01-27-2011
20100081921METHOD FOR UPDATING A STATUS OF A MEDICALLY USABLE OBJECT - The present application relates to a medical data method for updating a status of at least one object which relates to a medical applicability of the at least one object, including the following steps: preparing object data which describes location data and the status of the at least one object; preparing change data which relates to changes in the status of the at least one object; wherein the status of the at least one object is updated on the basis of a comparison between the object data and the change data.04-01-2010
20100081920EM TRACKING SYSTEMS FOR USE WITH ULTRASOUND AND OTHER IMAGING MODALITIES - An EMT system for use in ultrasound and other imaging modality guided medical procedures. The system includes a tool set of various components to which EM sensors can be releasably secured. Thus, the sensors can be reused, notwithstanding the disposal of other components of the tool set. Various components of the tool set include keying elements to facilitate their registration to the anatomy of the patient undergoing the procedure via the EM sensors.04-01-2010
20120116214Multimodal Catheter System and Method for Intravascular Analysis - Methods, apparatus, and systems for intravascular analysis combine at least three analytical modalities. In one implementation, intravascular ultrasound, optical coherence tomography, and near infrared spectroscopy are combined to enable detection of multiple, different abnormalities in the arterial morphology during a single intravascular procedure.05-10-2012
20090234223Surgery Assisting Apparatus and Treatment Assisting Apparatus - According to the invention, an endoscope system as a surgery assisting apparatus includes a surgery apparatus for performing treatment by abdominal operation procedure on a region to be treated in a body of a patient, and a luminal organ shape detecting apparatus used for assisting (supporting) the abdominal operation procedure. The luminal organ shape detecting apparatus is used as blood vessel position notifying means when procedure is performed by inserting a probe as a luminal organ insertion probe into a blood vessel, for example. This allows the luminal organ irrespective of the treatment to be easily and surely detected and enables a smooth procedure to be performed.09-17-2009
20120238867METHOD AND APPARATUS FOR EXAMINING TISSUE FOR PREDEFINED TARGET CELLS, PARTICULARLY CANCEROUS CELLS, AND A PROBE USEFUL IN SUCH METHOD AND APPARATUS - A method, apparatus and probe for examining tissue for the presence of target cells, particularly cancerous cells, by subjecting the tissue to be examined to a contrast agent containing small particles of a physical element conjugated with a biological carrier selectively bindable to the target cells. Energy pulses are applied to the examined tissue. The changes in impedance and/or optical characteristics of the examined tissue produced by the applied energy pulses are detected and utilized for determining the presence of the target cells in the examined tissue. In a described preferred embodiment, the applied energy pulses include laser pulses, and the physical element conjugated with a biological carrier is a light-sensitive semiconductor having an impedance which substantially decreases in the presence of light. The same probe used for detecting the targeted cells may also be used for destroying the cells so targeted.09-20-2012
20120238866Method and System for Catheter Tracking in Fluoroscopic Images Using Adaptive Discriminant Learning and Measurement Fusion - A method and system for adaptive discriminant learning and measurement fusion for image based catheter tracking is disclosed. An adaptive discriminant model is trained online based on a tracked object, such as a pigtail catheter tip, in at least one previous frame of a fluoroscopic image sequence. The object is tracked in the current frame of the fluoroscopic image sequence based at least on the adaptive discriminant model trained online. The object may be tracked in the current frame based on a fusion of three types of measurement models including the adaptive discriminant model trained online, an object detection model trained offline, and an online appearance model.09-20-2012
20080294037Apparatus and Method for Guided Chronic Total Occlusion Penetration - An apparatus and method for guided penetration of a chronic total occlusion in a blood vessel are disclosed. The invention is directed to an apparatus that facilitates accurate placement of a drilling tip within a body lumen using ultrasound-based detection to determine the position of the intravascular catheter relative to the vessel occlusion and vessel walls.11-27-2008
20080294036Surgical Metal Detection Apparatus and Methods - A surgical metal detection apparatus. The apparatus comprises an elongate, tubular cannula and a removable element, which may be a trocar, releasably engaged within the cannula. A metal detection coil is positioned within the removable element or, in some embodiments, within the cannula. The metal detection coil is connected to a metal detection circuit which is adapted to detect the presence of a metallic element proximate to the end of the removable element or cannula. When a metallic element has been detected, the removable element may be removed from the cannula to permit the passage of a removal tool, such as a screwdriver, through the cannula without removing or changing the position of the cannula.11-27-2008
20100274121Targeting an orthopaedic implant landmark - A system for targeting landmarks on devices such as surgical implants is disclosed. The system can include a field generator for generating one or more magnetic fields, an orthopaedic implant located within the magnetic fields, the implant having at least one landmark, a removable probe with a first magnetic sensor, a landmark identifier and a processor. The landmark identifier can contain a second sensor, or, alternatively, the field generator. The processor can utilize sensor data and, if desirable, field generator and other information, to generate and display the position and orientation of the sensor(s) in preferably six degrees of freedom, and thereby, to generate and display the position and orientation of the landmark(s). The system allows for blind targeting of one or more landmarks. The landmark identifier, field generator and/or drill motor may be disposed in an autoclavable housing.10-28-2010
20120116212Injectable solution container and syringe - A container of an injectable solution is disclosed herein including various sensors, electrodes, a memory device, and other features that monitor the process of extraction or injection of the content of the container to ensure it is completed successfully in an automated manner, such as in an automatic injecting device.05-10-2012
20110082366DC magnetic-based position and orientation monitoring system for tracking medical instruments - Miniaturized, five and six degrees-of-freedom magnetic sensors, responsive to pulsed DC magnetic fields waveforms generated by multiple transmitter options, provide an improved and cost-effective means of guiding medical instruments to targets inside the human body. The end result is achieved by integrating DC tracking, 3D reconstructions of pre-acquired patient scans and imaging software into a system enabling a physician to internally guide an instrument with real-time 3D vision for diagnostic and interventional purposes. The integration allows physicians to navigate within the human body by following 3D sensor tip locations superimposed on anatomical images reconstructed into 3D volumetric computer models. Sensor data can also be integrated with real-time imaging modalities, such as endoscopes, for intrabody navigation of instruments with instantaneous feedback through critical anatomy to locate and remove tissue. To meet stringent medical requirements, the system generates and senses pulsed DC magnetic fields embodied in an assemblage of miniaturized, disposable and reposable sensors functional with both dipole and co-planar transmitters.04-07-2011
20100262000METHODS AND DEVICES FOR ENDOSCOPIC IMAGING - Embodiments include devices and methods. One embodiment includes a method for imaging an endometrial cavity, including acquiring a plurality of images using an imaging system. A first part of the imaging system is positioned within the endometrial cavity. At least portions of two or more of the images are combined into a representation of at least a portion of the endometrial cavity. The combining at least portions of two of the images may include determining any motion of the first part of the imaging system, between the two or more of the images. Other embodiments are described and claimed.10-14-2010
20110282188INSERTION GUIDANCE SYSTEM FOR NEEDLES AND MEDICAL COMPONENTS - A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target.11-17-2011
20110282186Tracking Using Field Mapping - Methods and systems for determining the position of an object, such as tracking the position of one or more catheters in a patient's heart cavity are disclosed herein.11-17-2011
20100268068METHOD AND APPARATUS FOR MEDICAL INTERVENTION PROCEDURE PLANNING AND LOCATION AND NAVIGATION OF AN INTERVENTION TOOL - A system and method for a medical intervention procedure within a cardiac chamber having an imaging system to obtain image data of the cardiac chamber and to create a 3D model from that image data, an interventional system to register the 3D model with a real-time image of the cardiac chamber and to display the 3D model, and an interventional tool positioned in the cardiac chamber to be displayed upon the interventional system and to be navigated in real-time over the registered 3D model. Preferably, the method and system also includes a storage medium to store the 3D model and wherein the interventional system receives the stored 3D model to register with the real-time image of the cardiac chamber.10-21-2010
20100268067SYSTEMS, METHODS, APPARATUSES, AND COMPUTER-READABLE MEDIA FOR IMAGE GUIDED SURGERY - Presented herein are methods, systems, devices, and computer-readable media for image guided surgery. The systems herein allow a physician to use multiple instruments for a surgery and simultaneously provide image-guidance data for those instruments. Various embodiments disclosed herein provide information to physicians about procedures they are performing, the devices (such as ablation needles, ultrasound wands or probes, scalpels, cauterizers, etc.) they are using during the procedure, the relative emplacements or poses of these devices, prediction information for those devices, and other information. Some embodiments provide useful information about 3D data sets. Additionally, some embodiments provide for quickly calibratable surgical instruments or attachments for surgical instruments.10-21-2010
20110137152SYSTEM AND METHOD FOR COOLING COMPONENTS OF A SURGICAL NAVIGATION SYSTEM - In one embodiment, a surgical navigation system is provided with a transmitter assembly that includes at least one coil for creating an electromagnetic field in the vicinity of a surgical operation. The surgical navigation system also includes a cooling unit thermally coupled to the transmitter assembly for dissipating heat generated by the transmitter assembly and a receiver assembly that includes at least one coil configured to generate signals induced by the field. The surgical navigation system further includes electronic circuitry coupled to and communicating with the transmitter assembly and the receiver assembly for calculating at least a position of the receiver coil.06-09-2011
20130090553MEDICAL TOMOSYNTHESIS SYSTEM - The invention relates to a medical tomosynthesis system (04-11-2013
20110125008Filtering Method for Surface Modeling - A system for mapping a tissue surface includes a probe for mapping a tissue surface, a localization system to measure a location data point indicative of the probe's location, a memory in which to store the location data point, a servo mechanism to move the probe along at least a portion of the tissue surface, a controller to move the probe to a plurality of locations and to record in the memory a plurality of location data points, and a contact-sensing processor to analyze the plurality of location data points and to identify a subset thereof on the tissue surface. A modeling processor generates a model of the tissue surface using the subset of location data points. The contact-sensing processor utilizes probe velocity, or a rate of change in the distance moved by the probe, to determine contact between the probe and the tissue surface.05-26-2011
20110301451Apparatus And Method For Imaging A Medical Instrument - An ultrasound imaging and medical instrument guiding apparatus comprises: a first ultrasound probe configured to acquire a first volumetric dataset representing a 3-D image of a first volume; a second ultrasound probe configured to acquire a second volumetric dataset representing a 3-D image of a second volume; a mount to which the first and second probes are mounted, and a medical instrument guide. The first and second probes are located on the mount such that the first and second volumes overlap to form an overlapping volume. The medical instrument guide is positionable relative to the first and second ultrasound probes and is configured to receive and guide a medical instrument along a propagation axis to a target such that the target and the propagation axis intersect the overlapping volume.12-08-2011
20120004538SYSTEM INCLUDING AN IMPLANTABLE MEDICAL DEVICE AND ELECTRONIC VALVE INDICATOR AND LOCATOR DEVICE - A system including an implantable flow control device and an electronic valve indicator and locator device. The implantable device includes a valve and a magnetic device. The electronic device includes a locator tool, an indicator tool, and an adjustment tool. The indicator tool includes an electronic compass module for measuring an orientation of sensed magnetic fields and a locator tool interface module for electronically communicating sensed magnetic fields to the processing module. The locator tool has a processing module which receives and stores background magnetic field data, receives target magnetic field data when the indicator tool is coupled to the locator tool and positioned above the implanted device, and electronically determines the setting of the valve based on the background magnetic field data and the target magnetic field data. The adjustment tool aligns with the locator tool for modifying the valve setting when magnetically coupled to the implantable device.01-05-2012
20120004537CO-USE OF ENDOLUMINAL DATA AND EXTRALUMINAL IMAGING - Apparatus and methods are described for use with an endoluminal data-acquisition device configured to be moved through a lumen, the device having a radiopaque marker coupled thereto. While the device is being moved through the lumen (a) endoluminal data points of the lumen are acquired using the device, (b) contrast agent is continuously injected into the lumen, and (c) angiographic images of the device are acquired. It is determined that endoluminal data points correspond to respective locations within the lumen, by determining locations of the radiopaque marker within the angiographic images of the lumen, by performing image processing on the angiographic images, the locations of the radiopaque marker within the angiographic images of the lumen corresponding to respective endoluminal data points. Other applications are also described.01-05-2012
20100198056Diagnostic catheters, guide catheters, visualization devices and chord manipulation devices, and related kits and methods - Described herein are devices, methods and kits for assessing and/or enhancing the accessibility of a subvalvular space of a heart, accessing the subvalvular space of the heart (e.g., to provide access for one or more other devices), and/or positioning one or more devices in the subvalvular space of the heart. The devices described herein may, for example, comprise catheters that may be used to manipulate one or more chordae tendineae, diagnostic catheters having different sizes and/or shapes (e.g., different curvatures), guide catheters having different sizes and/or shapes (e.g., different curvatures), and visualization catheters. In some variations, the devices, methods, and/or kits may be used to visualize a target site, such as a subannular groove of a heart valve. In certain variations, the devices, methods, and/or kits may be used to manipulate chordae tendineae to provide additional space in a ventricle of a heart (e.g., enhancing the accessibility of the ventricle).08-05-2010
20110288405DEVICE, SYSTEM, AND METHOD FOR A STRESS SENSING MEDICAL NEEDLE - In an embodiment, an apparatus comprises a needle (e.g., hypodermic needle or trocar) and sensor (e.g., fiber Braggs grating sensor) coupled to a system to determine (e.g., in real time) stress and/or vibrations encountered by the needle. Consequently, various embodiments may (a) help identify nearby vessels, (b) determine whether the needle penetrated a hollow body structure, and (c) accurately guide needles towards a target structure (e.g., vessel). Other embodiments are described herein.11-24-2011
20110288404Shape Modeling and Detection of Catheter - A method and system for detecting and modeling a catheter in a fluoroscopic image is disclosed. Catheter tip candidates and catheter body candidates are detected in the fluoroscopic image. One of a plurality of trained shape models is fitted to the catheter tip candidates and the catheter body candidates in order to model a shape of the catheter in the fluoroscopic image.11-24-2011
20110040175Method and Apparatus for Volumetric Image Navigation - A surgical navigation system has a computer with a memory and display connected to a surgical instrument or pointer and position tracking system, so that the location and orientation of the pointer are tracked in real time and conveyed to the computer. The computer memory is loaded with data from an MRI, CT, or other volumetric scan of a patient, and this data is utilized to dynamically display 3-dimensional perspective images in real time of the patient's anatomy from the viewpoint of the pointer. The images are segmented and displayed in color to highlight selected anatomical features and to allow the viewer to see beyond obscuring surfaces and structures. The displayed image tracks the movement of the instrument during surgical procedures. The instrument may include an imaging device such as an endoscope or ultrasound transducer, and the system displays also the image for this device from the same viewpoint, and enables the two images to be fused so that a combined image is displayed. The system is adapted for easy and convenient operating room use during surgical procedures.02-17-2011
20120190971NAVIGATION SYSTEM FOR ORTHOPAEDIC SURGERY - A navigation system for placing an implant in orthopaedic surgery is provided, comprising an orientation apparatus and a reference apparatus. The reference apparatus comprises an anchor for fixing the reference apparatus to a predetermined feature of the subjects body and an indicator for indicating at least one reference plane or axis. The orientation apparatus comprises a number of probes for contacting a number of predetermined features of a subjects body and defining a plane. The orientation apparatus and/or the reference apparatus comprises at least one connector for connecting the orientation apparatus and the anchor such that, when connected, relative translation of the connector and the anchor along a predetermined direction with respect to the plane defined by the probes is allowed and relative rotation of the connector and the anchor about that predetermined direction is prevented.07-26-2012
20120190973METHOD OF CONFIRMING LOCATION OF GUIDE WIRE - A method of treating a constricted sinus passageway of a patient includes traversing the canine fossa region of the patient so as to form a passageway in the sinus cavity. An elongate member is inserted through the passageway, the elongate member having an inflation member such as a balloon disposed thereon. The inflation member is positioned within the constricted passageway. The inflation member is expanded so as to expand at least a portion of the constricted sinus passageway.07-26-2012
20110137154MAGNETIC PROBE APPARATUS - A system and method for locating magnetic material. In one embodiment the system includes a magnetic probe; a power module in electrical communication with the magnetic probe to supply current to the magnetic probe; a sense module in electrical communication with the magnetic probe to receive signals from the magnetic probe; and a processing module in electrical communication with the power module and the sense module. The processing module generates a waveform that controls the supply of current from the power module and receives a signal from the sense module that indicates the presence of magnetic material. The magnetic probe is constructed from a material having a coefficient of thermal expansion of substantially 1006-09-2011
20110295107Catheter System for Measuring and Marking Vessel Characteristics - A system marks and measures a Vessel lumen, heart valve or body cavity using a circumference measuring catheter. A catheter system comprises a catheter device including a loop having an adjustable circumference that is adjustable within a vessel. The catheter device includes a means for adjusting the circumference of the loop and a means for measuring adjusted loop circumference. An output unit sends data indicating the measured loop (vessel) circumference or cross-sectional area derived using the measured loop circumference for presentation to a user.12-01-2011
20110295111SYSTEM FOR DETERMINING THE ORIENTATION OF A CATHETER - The present invention relates to a system for determining the orientation of a catheter (12-01-2011
20110295109METHOD AND DEVICE FOR NAVIGATION OF A SURGICAL TOOL - The invention relates to a method of navigation of a tool to be used in a surgical operation for treating a target region within the body of a patient.12-01-2011
20110295108APPARATUS FOR USE WITH NEEDLE INSERTION GUIDANCE SYSTEM - A guidance system for assisting with the insertion of a needle into a patient body is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the sensed characteristic to determine a 3-D position of the needle. The system includes a display for depicting the position of the needle. The needle can include a donut-shaped magnet disposed about the needle cannula, or a removable stylet with a magnetic element and a strain gauge for detection of the needle distal tip.12-01-2011
20110295110METHOD AND SYSTEM OF TRACKING AND MAPPING IN A MEDICAL PROCEDURE - A tracking system for a target anatomy of a patient can include a medical device having a magnetic source (12-01-2011
20100249579Systems and methods for modeling both unobstructed and obstructed portions of a catheter - Electrical mapping system and methods are disclosed for modeling both unobstructed and obstructed portions of a catheter. An exemplary system includes a catheter body comprising a distal portion and a proximal portion, the catheter body supporting a plurality of electrodes electrically connected to an output device. The system also includes a rendering component operatively associated with the output device. The rendering component receives raw data from the plurality of electrodes and generates a plurality of images based on the raw data. Then the rendering component overlays the plurality of data images on one another to generate a three-dimensional image representing both the internal tissue and a visible portion of the catheter body. The system also includes an enhancement component which retrieves positional data for the catheter body and overlays a silhouette of at least one obstructed portion of the catheter body.09-30-2010
20100249578ARRANGEMENT AND METHOD FOR DETERMINING THE SPATIAL DISTRIBUTION OF MAGNETIC PARTICLES - The invention relates to an arrangement and a method for determining the spatial distribution of magnetic particles in an examination area. Magnetic field means are used to generate a spatially inhomogeneous gradient magnetic field with at least one region with a low field strength, in which the magnetization of the particles is in a state of non-saturation, whereas they are in a state of saturation in the remaining region. By using change means to shift the area with a low field strength within the examination area, a change in the magnetization of the magnetic particles is brought about which can be detected from outside by detection means and contains information about the spatial distribution of the magnetic particles in the examination area. The magnetic field means or the change means or the detection means or a combination of these means are arranged at least partially on a medical instrument.09-30-2010
20100249577Synergistic Electromagnetic Tracking With TMS Systems - A system for tracking the location of a magnetic stimulation coil.09-30-2010
20100240986Method And Apparatus For Instrument Placement - When delivering a therapy to a patient, such as a drug to a brain of a patient, an optimized delivery point can be selected. The optimized point can be based on physics, physiology, and pharmacology. The optimized point can be used for planning and a surgical navigation procedure.09-23-2010
20100249576DEVICES, SYSTEMS, AND METHODS OF TRACKING ANATOMICAL FEATURES - Devices, systems, and methods of tracking one or more anatomical features of a patient are disclosed. In one embodiment, a method of tracking anatomical features of a patient includes introducing a first implantable magnetic source into a patient's body, fixedly securing the magnetic source to a first anatomical feature, and monitoring the magnetic field generated by the magnetic source with a magnetic sensing system positioned outside the patient's body in order to track a position of the magnetic source. In another embodiment, a method of tracking anatomical features of a patient includes introducing a first implantable magnetic sensor into a patient's body, fixedly securing the sensor to a first anatomical feature of the patient, and monitoring a strength of a magnetic field generated by a magnetic source positioned outside the patient's body with the sensor in order to track a position of the sensor relative to the magnetic source.09-30-2010
20090299174INSTRUMENTS WITH LOCATION MARKERS AND METHODS FOR TRACKING INSTRUMENTS THROUGH ANATOMICAL PASSAGEWAYS - Instruments and methods for tracking such instruments in a human patient. One embodiment of an instrument in accordance with the invention comprises an elongated body, such as an elongated flexible member, which has a distal section configured to be passed through a vessel or other passageway in a human. The instrument can further include a lumen through the distal section and a magnetic marker having a transponder at the distal section. The transponder includes a circuit configured to be energized by a wirelessly transmitted magnetic excitation energy and to wirelessly transmit a magnetic location signal in response to the excitation energy. The magnetic marker, for example, can be attached to or otherwise integral with the instrument.12-03-2009
20110301452Microcapsule for local treatment of a tumor and method for positioning a magnetic gradient field guiding magnetic nanoparticles to a target location as well as apparatus for positioning a magnetic gradient field - A microcapsule for the local treatment of a tumor is proposed. The microcapsule has a support material forming a casing for the microcapsule, an active agent that damages tumor cells, a marker material suitable for use as an x-ray marker, and at least one magnetic nanoparticle. The active agent in particular destroys the tumor cells.12-08-2011
20110092809CARDIAC COORDINATE SYSTEM FOR MOTION ANALYSIS - An exemplary method includes accessing cardiac information acquired via a catheter located at various positions in a venous network of a heart of a patient wherein the cardiac information comprises position information with respect to time for one or more electrodes of the catheter; performing a principal component analysis on at least some of the position information; and selecting at least one component of the principal component analysis to represent an axis of a cardiac coordinate system. Various other methods, devices, systems, etc., are also disclosed.04-21-2011
20080269596Orthpaedic Monitoring Systems, Methods, Implants and Instruments - Orthopaedic operating systems, operating rooms, computer aided surgical methods, trackable implants, instruments and surgical planning and IGS software applications are described. The integrated surgical system is for use in an orthopaedic operating room to enable a surgeon to carry out a computer aided surgical procedure on a subject. A subject support, wireless magnetic tracking system, registration system, at least a first display device, a control system and a surgeon interface operable by the surgeon to control operation of the plurality of parts of the integrated surgical system are provided. The method comprises determining the position of at least a first marker being wirelessly tracked by a wireless magnetic tracking system, registering the position of the body part of the subject with an image of the body part of the subject, displaying a registered image of the body part of the subject and at least an image representative of an implant, and receiving a command from a surgeon interface operable by the surgeon.10-30-2008
20120190972DEPTH DISAMBIGUATION OF INTERVENTIONAL INSTRUMENTS FROM A SINGLE X-RAY PROJECTION IMAGE AND ITS CALIBRATION - X-ray images are projective, meaning that the 3D geometry is flattened along projection lines going from the source to the detector. In particular procedures, such as mapping or ablation, the interventional instrument lies on the wall of the organ. Using a 3D segmentation of this organ registered to the x-ray, the instrument necessarily lies on the intersection of this surface with its projection line. The line and the surface typically intersect with a segmentation surface at a discrete number of points (typically 2 for shapes such as the anterior of the LA). One then has just to disambiguate between these different possible locations to determine the exact location of the instrument. In this invention, we propose to use the apparent width of the instrument measured in x-ray images to accomplish this task.07-26-2012
20120190970APPARATUS AND METHOD FOR STABILIZING A NEEDLE - Apparatus and methods for use in an image-guided interventional procedure are described herein. In one embodiment, an apparatus includes a base configured to be releasably coupled to a patient's skin. A support portion extends from the base at an angle transverse to a longitudinal axis defined by the base. The support portion has a first end portion and a second end portion. The first end portion is disposed adjacent the base. A holder portion extends from the second end portion of the support portion. The holder portion defines an opening and is configured to be moved between a first configuration in which the opening defined by the holder portion has a first size and is configured to movably receive an interventional tool therethrough, and a second configuration in which the opening defined by the holder portion has a second size different than the first size.07-26-2012
20100036238DEVICE AND METHOD FOR ASSESSING EXTENSION OF A DEPLOYABLE OBJECT - A medical instrument assembly is disclosed. The medical instrument has proximal and distal ends. A receiver coil being mounted proximate to a distal end of the medical instrument, the receiver coil being electrically connectable at a proximal end of the medical instrument. A deployable object being disposed and movable within the medical instrument. The deployable object bearing a high magnetic permeability material located proximate to the receiver coil. The high magnetic permeability material and the receiver coil combining to form an inductive element having an inductance that varies in a predetermined manner with the position of the deployable device relative to the receiver coil. A determination of the inductance being performed at the proximal end of the delivery catheter indicates the extension of the deployable device through the medical instrument.02-11-2010
20090099445TRACKING SURGICAL ITEMS - A kit of parts, surgical item, method for adapting a surgical item and computer implemented method for tracking a marked surgical item are described. The kit of parts can include a surgical item, a marker assembly and at least one further marker separate to the marker assembly. The marker assembly comprises at least two markers and can be attached to the surgical item at a plurality of positions. The further marker can be mounted on the surgical item at a fixed position on the surgical item relative to a part of the surgical item to be tracked. When assembled, the position of said further marker relative to said marker assembly allows a tracking system to track the part of the surgical item with the marker assembly at any of the plurality of positions.04-16-2009
20110270081Navigated Malleable Surgical Instrument - A surgical instrument can include a body, a tracking device, and a handle. The body can include proximal and distal ends, and a flow passage extending therebetween. The body can be formed from a malleable material such that it can be bent between the proximal and distal ends from a first configuration to a second bent configuration and maintain the bent configuration. The tracking device can be positioned adjacent the distal end for tracking a distal tip of the instrument. The handle can be coupled to the proximal end of the body and can include an internal flow passage in fluid communication with the body flow passage. The tracking device can include a pair of lead wires wound around the body to the handle, where the wound wires can conform to the bent configuration of the body such that they do not strain or break during bending of the body.11-03-2011
20110263971Reconfigurable Navigated Surgical Tool Tracker - A reconfigurable tracking arrangement for an object includes a repositionable mounting arrangement that may be configured to releasably connect to an object for selectively positioning the same. The mounting arrangement may further include a first piece attached to the object and a second piece that can be repositioned relative to the first piece. In addition, the mounting arrangement may be configured to be secured in at least two stable pre-configured positions about the object.10-27-2011
20090088631CATHETER - An improved catheter is provided. The catheter may include a deflectable member located at a distal end of the catheter. The deflectable member may comprise an ultrasound transducer array. The catheter may include a lumen extending from a proximal end of the catheter to the distal end. The lumen may be used to deliver an interventional device to a point distal to the distal end of the catheter. The deflectable member may be selectively deflectable in a pivot-like manner through an arc of at least 90 degrees. In embodiments where the deflectable member includes an ultrasound transducer array, the ultrasound transducer array may be operable to image both when aligned with the catheter and when pivoted relative to the catheter. When pivoted relative to the catheter, the ultrasound transducer array may have a field of view distal to the distal end of the catheter.04-02-2009
20100113916Systems and Methods for Endotracheal Tube Positioning - Certain embodiments of the presently described technology provide methods and systems for positioning of an endotracheal tube. Certain embodiments provide an endotracheal tube system including an endotracheal tube and a removable positioning member. The endotracheal tube is sized and adapted for providing airway maintenance during an endotracheal procedure. The removable positioning member is sized and adapted to be insertable into and removable from the endotracheal tube. The removable positioning member includes a positioning element located proximal to the distal end of the removable positioning member. The positioning element provides an indication of position when at least a portion of the endotracheal tube is inside of a patient.05-06-2010
20110172521Implantable Doppler Tomography System - The inventive implantable Doppler tomography system allows, for the first time, the use of Doppler shift for purposes of tracking cardiac wall motion. The present inventive Doppler tomography system methods and devices provide a critical new tool in the physician's armamentarium which provides accurate, real time monitoring of the mechanical performance of the heart.07-14-2011
20090149739Catheter device with a position sensor system for treating a vessel blockage using image monitoring - The invention relates to a catheter device, with a position sensor system, for treatment of a partial or complete vessel blockage under image monitoring, with the catheter device featuring a treatment catheter of a vessel blockage, especially by removal or destruction of plaque and/or expansion of the vessel,, which is embodied as an integrated unit, especially as a combination catheter, with an OCT catheter and an IVUS catheter for image monitoring and with the position sensor system. 06-11-2009
20110125007LOCALIZATION OF CAPSULE WITH A SYNTHETIC SOURCE OF QUADRUPOLES AND DIPOLES - This invention relates to methods and apparatus for localizing an in vivo imaging device by means of a single magnetic source coil assembly and a single magnetic detector coil assembly. This invention also relates to methods and apparatus to enable the use of a single magnetic source coil assembly to also transmit and receive information, images, and controls signals, as well as for the coil assembly to be used in DC-DC voltage conversion. A user interface with a display provides the user with the option of viewing selected images captured by the in vivo imaging device.05-26-2011
20090149741Motion correction for tomographic medical image data of a patient - A method and apparatus for motion correction of medical image data of a patient are provided. Medical image data is obtained in a tomographic image recording process by back-projection from a number of projection images. The position of a magnetic location sensor, which is arranged on a medical implant inserted into a patient is also determined as a function of time while the projection images are being recorded, by means of an electromagnetic location system and the position is taken into account in the back-projection of the projection images for motion correction purposes.06-11-2009
20090149740A medical intervention device - The invention relates to a device for a medical intervention in or on moving tissue of a living being, said device having a medical instrument provided for the intervention, a position detection system by means of which the position of the medical instrument in the body of the living being can be determined, and at least one acceleration sensor for recording at least one movement of the instrument caused by the moving tissue. The invention also relates to a medical instrument for a medical intervention in or on moving tissue of a living being, said medical instrument having at least one acceleration sensor and a sensor of a position detection system, as well as to an operating method for the device.06-11-2009
20090143670OPTICAL TRACKING CAS SYSTEM - A computer-assisted surgery system for tracking an object during surgery comprises two trackable devices secured to two parts of an object. The devices each have optical elements arranged in geometrical patterns. The devices are secured separately to the object so that the devices are at least partially detectable from an overlapping range of directions, so that a combinative geometrical pattern is defined from a combination of at least part of the optical elements from the trackable devices. A sensor unit detects tracking data on any tracked geometrical pattern. A pattern identifier identifies, from known pattern data for the geometrical patterns, which of the geometrical patterns is being tracked. A position and orientation calculator calculates position and orientation of the object as a function of tracking data on an identified geometrical pattern and of a known spatial relation between the identified geometrical pattern and the object. A method for tracking an object is also provided.06-04-2009
20100121182SYSTEM AND METHOD FOR POSITIONING A PROBE - An adapter couples a length of optical fiber to a hollow probe and to an optical coherence tomography instrument. The length of optical fiber may be greater than the length of the adapter itself. The optical fiber is fixed to an optical coupler at a proximal end of the adapter and may be maintained in a curved configuration by features located in an internal cavity of the adapter. An optical fiber advance mechanism be used to advance and/or retract the length of optical fiber to align it within the hollow probe.05-13-2010
20120035468SYSTEM AND METHOD FOR IDENTIFYING A LANDMARK - A system for targeting landmarks on devices such as surgical implants is disclosed. The system can include a field generator for generating one or more magnetic fields, an orthopaedic implant located within the magnetic fields, the implant having at least one landmark, a removable probe with a first magnetic sensor, a landmark identifier and a processor. The landmark identifier can contain a second sensor, or, alternatively, the field generator. The processor can utilize sensor data and, if desirable, field generator and other information, to generate and display the position and orientation of the sensor(s) in preferably six degrees of freedom, and thereby, to generate and display the position and orientation of the landmark(s). The system allows for blind targeting of one or more landmarks. The landmark identifier, field generator and/or drill motor may be disposed in an autoclavable housing.02-09-2012
20090312627Radio-labeled ingestible capsule - A method of determining the location of an ingested capsule comprising the steps of providing an ingestible capsule (12-17-2009
20080269597Gauze or the Like Having a Device for its Detection at a Distance - A gauze or other material for surgical use comprising at least one presence detection device for remotely identifying said gauze or other material for surgical use. The presence detection device can be a radio-opaque element or can be activated by a radio-frequency or a magnetic signal. It can be provided with a chip, an antenna and a memory.10-30-2008
20110118591LOCATING AN IMPLANTED OBJECT BASED ON EXTERNAL ANTENNA LOADING - In general, the invention is directed to techniques for locating an implanted object using an external antenna. The implanted object may be, for example, an internal antenna that facilitates recharging of and/or communication with an implantable medical device. An external device coupled to the external antenna drives the antenna with a plurality of waveforms. Asymmetry in the loading profile of the external antenna when it is driven by the plurality of waveforms allows the external device or another device to determine the location of the implanted object relative to the external antenna. The external device or other device may provide information to a user based on the determined location of the implanted object relative to the external antenna, such as information to help a user position the external antenna with respect to an internal antenna in embodiments in which the implanted object is an internal antenna.05-19-2011
20120108955SYSTEM AND METHOD OF PROVIDING REAL-TIME DYNAMIC IMAGERY OF A MEDICAL PROCEDURE SITE USING MULTIPLE MODALITIES - A system and method of providing composite real-time dynamic imagery of a medical procedure site from multiple modalities which continuously and immediately depicts the current state and condition of the medical procedure site synchronously with respect to each modality and without undue latency is disclosed. The composite real-time dynamic imagery may be provided by spatially registering multiple real-time dynamic video streams from the multiple modalities to each other. Spatially registering the multiple real-time dynamic video streams to each other may provide a continuous and immediate depiction of the medical procedure site with an unobstructed and detailed view of a region of interest at the medical procedure site at multiple depths. A user may thereby view a single, accurate, and current composite real-time dynamic imagery of a region of interest at the medical procedure site as the user performs a medical procedure.05-03-2012
20120108954ERROR CORRECTION TECHNIQUES IN SURGICAL NAVIGATION - A medical system includes a sensor location module, a first module, and a second module. The sensor location module determines a location of a magnetic field sensor within a magnetic field. The first module determines an acceleration of the magnetic field sensor. The second module indicates a modified location of the magnetic field sensor in an image of a medical patient based on the acceleration and one or more previously determined locations.05-03-2012
20120108953CATHETER WITH CORONARY SINUS OSTIUM ANCHOR - A method of treating cardiac tissue is provided, including positioning a first chamber of a medical device adjacent an atrial wall; directing a cryogenic coolant into the first chamber; anchoring the first chamber to the atrial wall through cryoadhesion; directing a distal portion of the medical device into the coronary sinus; and positioning a cardiac lead through at least a portion of the coronary sinus with the distal portion. The method may include measuring a temperature of the first chamber; removing the first chamber from the atrial wall once a predetermined threshold temperature of the first chamber is reached; anchoring a second chamber of the medical device to a portion of the coronary sinus; and/or perfusing blood flow through at least a portion of the second chamber.05-03-2012
20100099979SPATIAL CHARACTERIZATION OF A STRUCTURE LOCATED WITHIN AN OBJECT BY IDENTIFYING 2D REPRESENTATIONS OF THE STRUCTURE WITHIN SECTION PLANES - It is described a virtual pullback as a visualization and quantification tool that allows an interventional cardiologist to easily assess stent expansion. The virtual pullback visualizes the stent and/or the vessel lumen similar to an Intravascular Ultrasound (IVUS) pullback. The virtual pullback is performed in volumetric data along a reference line. The volumetric data can be a reconstruction of rotational 2D X-ray attenuation data. Planes perpendicular to the reference line are visualized as the position along the reference line changes. This view is for interventional cardiologists a very familiar view as they resemble IVUS data and may show a section plane through a vessel lumen or a stent. In these perpendicular section planes automatic measurements, such as minimum and maximum diameter, and cross sectional area of the stent can be calculated and displayed. Combining these 2D measurements allows also volumetric measurements to be calculated and displayed.04-22-2010
20130072787SYSTEM AND METHOD FOR VIRTUALLY TRACKING A SURGICAL TOOL ON A MOVABLE DISPLAY - The invention comprises a virtual window system that creates a visual coherency between the image of the patient and his or her anatomy and the patient by aligning the image of the patient anatomy on the display to the patient and presenting the image to the user that feels is if the user is looking directly into the patient through the display. The invention is designed to also display medical devices, such as a minimally invasive tool. The system substantially unifies the coordinate systems of the patient, the medical device, the display, and the physician's hands. The invention creates a visual coherency between the motion of the medical device in the image and the motion of the physician's hands manipulating the device. This invention also creates a visual coherency between the motion of the image in the display and display.03-21-2013
20110172520MULTIFILAR CABLE CATHETER - A balloon catheter device includes a multifilar tube shaft having a shaft lumen. A shaft lumen coating is provided on a surface of the multifilar tube shaft and extends from a proximal end of the multifilar tube shaft and terminates before a distal end of the multifilar tube shaft. An inflation balloon is disposed at the distal end of the multifilar tube shaft such that the shaft lumen coating and the inflation balloon form a continuously sealed length of the shaft lumen. The shaft lumen defines an inflation lumen that is in fluid communication with an interior space of the inflation balloon.07-14-2011
20100280364NEAR REAL-TIME VIEWER FOR PET-GUIDED TISSUE INTERVENTIONS - An apparatus and a computational method are provided for localizing a positron-emitting source during an intervention using positron emission tomography (PET) imaging. The apparatus is designed to accelerate the image acquisition and reconstruction process such that the resulting image presentation can be used to quickly reposition an interventional device in relation to a lesion. By limiting the processing of data in the acquisition to a focal plane which extends through the localization target, and which is oriented to capture and display motion during the intervention, and then by displaying a persistence image which is frequently refreshed, a user can visualize movement of the positron-emitting source for optimizing the position of the interventional device. The positron-emitting source(s) can be radiolabeled tissue, a radiolabeled interventional device, a radiolabeled fiducial, or any combination thereof.11-04-2010
20100099981Trans-Septal Catheterization Device And Method - A method and apparatus for performing medical treatment on a patient. The method include generating a three dimensional image of a portion of a patient and overlaying a real time image of a treatment tool in the patient during its movement in the patient to a site of interest.04-22-2010
20100099983System, Device, and Method for Determining a Position of an Object - A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a patient's body. The substrate includes a sensor that is tracked by the surgical navigation system and a positional device that determines the position of an anatomical structure relative to the sensor. The concatenation of the position of the sensor and the relative position of the anatomical structure allows a global position of the anatomical structure to be determined by a computer system and displayed to the user.04-22-2010
20110201922OPTICAL PROBE HAVING A POSITION MEASURING SYSTEM - This invention relates to an optical probe (08-18-2011
20110172519SYSTEMS, DEVICES AND METHODS EMPLOYING FIBER OPTIC SHAPE TRACKING - The present invention provides systems, devices, and methods employing fiber optic shape and position tracking. The systems, devices, and methods permit measurement of and continuous tracking of the shape and position of objects whose shape dynamically changes with time. Applications include tracking and monitoring of endoscopes for diagnostic and surgical procedures.07-14-2011
20090259124METHOD OF LOCATING THE TIP OF A CENTRAL VENOUS CATHETER - Methods of locating a tip of a central venous catheter (“CVC”) relative to the superior vena cava, sino-atrial node, right atrium, and/or right ventricle using electrocardiogram data. The CVC includes at least one electrode. In particular embodiments, the CVC includes two or three pairs of electrodes. Further, depending upon the embodiment implemented, one or more electrodes may be attached to the patient's skin. The voltage across the electrodes is used to generate a P wave. A reference deflection value is determined for the P wave detected when the tip is within the proximal superior vena cava. Then, the tip is advanced and a new deflection value determined. A ratio of the new and reference deflection values is used to determine a tip location. The ratio may be used to instruct a user to advance or withdraw the tip.10-15-2009
20120296200SYSTEM AND METHOD FOR TARGETING CATHETER ELECTRODES - A system and method is described for a catheter guidance system which allows an operator to use a mapping catheter to specify tissue target locations for the automatic guidance of a second therapeutic catheter. The operator places a mapping catheter at a desired location, and commands the catheter guidance system by either selecting a point on that catheter or one of the catheter electrode electrocardiograms. The operator may target the selected dynamic location, or tissue contact beyond that location on a specific side of the mapping catheter.11-22-2012
20120130232Illustrating a Three-Dimensional Nature of a Data Set on a Two-Dimensional Display - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.05-24-2012
20120130229Medical Device Location Systems, Devices and Methods - Methods, devices and systems for one or both of two- or three-dimensional location of the disposition of a sensor coil in a subject including: an array of electromagnetic drive coil sets, each set having two or three dimensionally oriented drive coils; a sensor coil being electromagnetically communicative with the array of electromagnetic drive coil sets; and, a system controller communicative with and adapted to energize one or more of the electromagnetic coils in the array of electromagnetic drive coil sets, the energizing of the one or more of the electromagnetic coils including one or more of energizing the coils singly, or in pairs of x-y and y-z or x-z coils, or in triplets of x-y-z coils while measuring the response of the sensor coil; whereby the system uses the measurements of the responses of the sensor coil to calculate the location and orientation of the sensor coil relative to said drive coil sets.05-24-2012
20090281416ARRANGEMENT AND METHOD FOR DETERMINING THE SPATIAL DISTRIBUTION OF MAGNETIC PARTICLES - The invention relates to an arrangement and a method for determining the spatial distribution of magnetic particles in an examination area. Magnetic field means are used to generate a spatially inhomogeneous gradient magnetic field with at least one region with a low field strength, in which the magnetization of the particles is in a state of non- saturation, whereas they are in a state of saturation in the remaining region. By using change means to shift the area with a low field strength within the examination area, a change in the magnetization of the magnetic particles is brought about which can be detected from outside by detection means and contains information about the spatial distribution of the magnetic particles in the examination area. The magnetic field means or the change means or the detection means or a combination of these means are arranged at least partially on a medical instrument.11-12-2009
20090088628EFFICIENT WORKFLOW FOR AFIB TREATMENT IN THE EP LAB - A system and method relate to enhanced medical workflows. Current anatomical data of a patient may be acquired, such as via a computed tomography or magnetic resonance procedure, just before and/or during an intervention. During the intervention, an electroanatomical map of the patient may be generated. The electroanatomical map may be generated from three-dimensional ultrasound data acquired via a medical device. The current anatomical data and electroanatomical map may be dynamically fused during the intervention. The fused data may be displayed and/or used to localize a current position of the medical device in real-time. The medical device may be a catheter employing a multi-dimensional forward-looking array of sensors. In one aspect, the enhanced workflow may be associated with an ablation procedure or other intervention performed in an electrophysiology lab. The use of current anatomical data and more accurate multi-dimensional ultrasound data may alleviate inefficiencies and inaccuracies associated with conventional interventions.04-02-2009
20090088632Method for Dynamic Road Mapping - A method of determining a three-dimensional (3D) position of a catheter tip includes: compensating a 2D position of the tip of the catheter for respiratory motion to generate a compensated 2D catheter position, generating weighted sample points around the compensated 2D catheter position, determining correspondent points of the weighted sample points in a 3D image, computing a weighted mean and a weighted covariance of each correspondent point, and determining the 3D position of the catheter tip in the 3D image from a fusion of the weighted means and weighted covariances.04-02-2009
20110270082MEDICAL DEVICE TRACKING SYSTEM WITH TAG AND METHOD - Embodiments of the invention include systems and methods for tracking a medical device. Systems configured for such tracking may include the capability to either or both detect tampering with the medical device and to effectively expose the medical device to sterilization substances while the medical device is captured by a mechanism including an identifying characteristic.11-03-2011
201200717513D Model Creation of Anatomic Structures Using Single-Plane Fluoroscopy - A method for 3D reconstruction of the positions of a catheter as it is moved within a region of the human body, comprising: (a) ascertaining the 3D position of a point on a catheter for insertion in the body region; (b) acquiring a fixed angle, single-plane fluoroscopic image of the body region and of the catheter; (c) transferring the image data and catheter-point position to a computer; (d) determining the 2D image coordinates of the point on the catheter; (e) changing the length of catheter insertion by a measured amount; (f) thereafter acquiring a further single-plane fluoroscopic image of the body region and the catheter from the same angle, transferring the length change and additional image data to the computer, and determining the 2D image coordinates of the point on the catheter; (g) computing the 3D position of the catheter point; and (h) repeating steps e-g plural times. A 3D model is constructed by assembling the plural 3D positions of the point within the body region into a 3D model of the region.03-22-2012
20090088633Method for the combined image display of a catheter inserted into the heart area of a patient with electrophysiological cardiological data - The invention relates to a method for the combined three-dimensional image display of a catheter. The catheter is inserted into the heart area of a patient with electrophysiological data, as part of a cardiological investigation or treatment. A current position of the catheter is localized with fluoroscopy-aided. The current position of the catheter and the electrophysiological data of the patient are blended into a three-dimensional volumetric image of a structure of the heart for the combined three-dimensional image display.04-02-2009
20120143046ELECTRO-CHEMICAL-DEPOSITION OF GALFENOL AND THE USES THEROF - A method for the electro-chemical-deposition (ECD) of alloys of iron (Fe) and gallium (Ga) to electro-deposit magnetostrictive “Galfenol” thin films. Various uses and applications for said Galfenol thin films are also disclosed.06-07-2012
20090275825TUBE FOR DELIVERING A FLUID TO A PREDETERMINED LOCATION - A tube for delivering fluid to a remote location not normally in view or not practicably able to be viewed by an operator placing such tubes. The tube comprising a lumen connecting a fluid input aperture, disposed at a proximal end of the tube, and a fluid output aperture, to deliver fluid therebetween. The tube further comprises positioning means having an optical waveguide and sensor means. The optical waveguide extends from the proximal end of the tube to the sensor means. The optical waveguide guides an input optical signal to the sensor means. Positioning of the sensor means in a desired location within a system varies the properties of the input optical signal to provide a predetermined output optical signal, which is guided to the proximal end of the tube to indicate to a user, placement of the predetermined portion of the tube at the desired position within the system.11-05-2009
20090275824System and Method for Sensing Gastric Contractions - An exemplary implantable device includes an emitter to emit radiation to illuminate a portion of the stomach and a detector to detect emitted radiation reflected by the portion of the stomach where a contraction of the stomach alters the reflected radiation. For example, during contraction, blood is excluded from the contracting region of the stomach and the stomach becomes less red in color. An exemplary method includes illuminating a portion of the gastrointestinal tract, detecting a change in illumination received by a detector where the change in illumination is responsive to a contraction of the gastrointestinal tract. Various other methods, devices, systems, etc., are also disclosed.11-05-2009
20090281419System for determining the position of a medical instrument - The invention relates to a system for determining the spatial position and/or orientation of a medical instrument (11-12-2009
20090281417Method and apparatus for tracking a patient - A system for tracking a patient is provided. The system can include a first reference frame coupled to a first portion of an anatomical structure. The system can include a second reference frame, which can be coupled to a second portion of the anatomical structure. The system can also include a first tracking device coupled to the first reference frame and a second tracking device coupled to the second reference frame. The system can also include a tracking system that can track a position of the first tracking device and the second tracking device to ensure that the position of the first reference frame relative to the anatomical structure is substantially the same throughout a surgical procedure.11-12-2009
20080249399ENDOVASCULAR TREATMENT APPARATUS AND METHOD - An endovascular sheath device for use with a thermal treatment apparatus is provided. The device includes a longitudinal tube which is designed to receive a thermal treatment device and is designed to be inserted into a blood vessel. An ultrasonically visible reinforcement element is disposed along the length of the longitudinal tube. The reinforcement element such as a braided wire provides several functions including increased visibility under ultrasound, clearer identification of sheath tip, and increased durability to protect the fiber from needle punctures during tumescent injections into the perivenous space. The wire reinforcement also increases shaft torquability and kink resistance during sheath insertion and withdrawal.10-09-2008
20120271163ULTRASONIC MONITORING OF IMPLANTABLE MEDICAL DEVICES - Systems and methods for ultrasonically monitoring implantable medical devices are disclosed. An ultrasonic monitoring system includes an ultrasonic transmitter that transmits an ultrasonic wave into the body, an implantable medical device including at least one ultrasonic reflecting unit configured for reflecting a portion of the ultrasonic wave, and an ultrasonic imaging monitor configured to receive a reflected portion of the ultrasonic wave and produce an ultrasonic image of the implantable medical device within the body. The ultrasonic reflecting unit can include an echogenic fluid medium that reflects a portion of the ultrasonic wave received from the ultrasonic transmitter. The ultrasonic reflecting units can be positioned at various locations on the device to produce localized areas of increased echogenicity, which can be used by the implanting physician to gauge the location of the device within the body.10-25-2012
20120271162Constrained Registration for Motion Compensation in Atrial Fibrillation Ablation Procedures - A method for model based motion tracking of a catheter during an ablation procedure includes receiving a training series of biplanar fluoroscopic images of a catheter acquired under conditions that will be present during an ablation procedure, segmenting and processing the series of biplanar images to produce a distance transform image for each biplanar image at each acquisition time, minimizing, for each pair of biplanar images at each acquisition time, a cost function of the distance transform image for each pair of biplanar images to yield a translation parameter that provides a best fit for a model of the catheter to each pair of biplanar images at each acquisition time, and calculating an updated catheter model for each acquisition time from said translation parameter.10-25-2012
20080319314INJECTION CATHETER - An injection catheter is provided. The catheter comprises a catheter body comprising a flexible tubing having proximal and distal ends and at least one lumen therethrough. A tip section comprising a flexible tubing is mounted at the distal end of the catheter body. The tip section has a needle passage extending therethough. The needle passage has a proximal region having a proximal diameter and a distal region having a distal diameter less than the proximal diameter. A needle control handle is provided at the proximal end of the catheter body. An injection needle extends through the tip section, catheter body, and needle control handle and has a proximal end attached to the needle control handle and a distal end within the needle passage. The injection needle is longitudinally slidable so that its distal end can extend beyond the distal end of the tip section upon suitable manipulation of the needle control handle.12-25-2008
20090292199CATHETER - An improved catheter is provided. The catheter may include a deflectable member located at a distal end of the catheter. The deflectable member may comprise an ultrasound transducer array. The catheter may include a lumen extending from a proximal end of the catheter to the distal end. The lumen may be used to deliver an interventional device to a point distal to the distal end of the catheter. The deflectable member may be selectively deflectable in a pivot-like manner through an arc of at least 90 degrees. In embodiments where the deflectable member includes an ultrasound transducer array, the ultrasound transducer array may be operable to image both when aligned with the catheter and when pivoted relative to the catheter. When pivoted relative to the catheter, the ultrasound transducer array may have a field of view distal to the distal end of the catheter.11-26-2009
20110201923METHOD AND SYSTEM OF ELECTROMAGNETIC TRACKING IN A MEDICAL PROCEDURE - A tracking system (08-18-2011
20110201921Therapy Delivery System Including a Navigation Element - An electromagnetic receiver assembly is included in a navigation element for a therapy delivery system. If the system is modular, the navigation element may be an insertable module thereof and/or include a lumen to receive another insertable module.08-18-2011
20120296201Lesion Detection and Localization Using Gamma Cameras with Converging Collimation - First and second gamma radiation detector heads are oriented to image an area of a subject. The area of said subject is completely within a field of view that is defined between the first and second gamma radiation heads. Focal points of each of the first and second gamma radiation heads are also within an area defined between the first and second gamma radiation heads. A computer is programmed to receive image information from both the first gamma radiation detector head and the second gamma radiation detector head, and operating to use information from both the first gamma radiation detector head and the second gamma radiation detector head, as well as to use information indicative of a distance between the first gamma radiation detector head and the second gamma radiation detector head, to determine a location of an item of interest in the subject and between the first gamma radiation detector head and the second gamma radiation detector head, by calculating using information about similar triangles formed from known positions of the first gamma radiation detector head and the second gamma radiation detector head, and the information.11-22-2012
20110270080DETERMINING INSERTED CATHETER END LOCATION AND ORIENTATION - Catheterization device and method of using are provided for uniquely illuminating the distal end of the device in order to visualize the end-point location and orientation and to track the movement of the catheterization device within passageways in the body. Use of the present invention by tracking in real time with an imaging device sensitive to visible to near infrared light. The invention allows the insertion and tracking of substantially any catheterization type device, for substantially any procedure requiring vascular access, such as in the placement of a PICC line, for heart catheterization or angioplasty, or for urinary track catheterization, or other bodily access procedure. The invention permits a technician to determine placement, orientation and movement of the device noninvasive equipment, without subjecting the patient to the hazards associated with ionizing radiation, radio frequency energy or significant thermal energy.11-03-2011
20100280365GUIDANCE METHOD BASED ON 3D-2D POSE ESTIMATION AND 3D-CT REGISTRATION WITH APPLICATION TO LIVE BRONCHOSCOPY - A method provides guidance to the physician during a live bronchoscopy or other endoscopic procedures. The 3D motion of the bronchoscope is estimated using a fast coarse tracking step followed by a fine registration step. The tracking is based on finding a set of corresponding feature points across a plurality of consecutive bronchoscopic video frames, then estimating for the new pose of the bronchoscope. In the preferred embodiment the pose estimation is based on linearization of the rotation matrix. By giving a set of corresponding points across the current bronchoscopic video image, and the CT-based virtual image as an input, the same method can also be used for manual registration. The fine registration step is preferably a gradient-based Gauss-Newton method that maximizes the correlation between the bronchoscopic video image and the CT-based virtual image. The continuous guidance is provided by estimating the 3D motion of the bronchoscope in a loop. Since depth-map information is available, tracking can be done by solving a 3D-2D pose estimation problem. A 3D-2D pose estimation problem is more constrained than a 2D-2D pose estimation problem and does not suffer from the limitations associated with computing an essential matrix. The use of correlation-based cost, instead of mutual information as a registration cost, makes it simpler to use gradient-based methods for registration.11-04-2010
20090036768MEDICAL DEVICES - Medical devices with radiopaque markers, and related systems and methods are disclosed.02-05-2009
20100137708INTRA-SUBJECT POSITION DETECTION SYSTEM AND INTRA-SUBJECT POSITION DETECTION METHOD - From among plural receiver electrodes for receiving a transmission signal transmitted from transmitter electrodes of an intra-subject introduction device, receiver electrodes for receiving an image reception signal are selected by a receiver electrode selection circuit. Further, receiver electrodes for receiving a signal for position detection are selected by a receiver electrode selection circuit, from among the other ones of the plural receiver electrodes than the receiver electrodes selected by the receiver electrode selection circuit.06-03-2010
20080249398Hybrid Source Containing Multi-Radionuclides for Use in Radiation Therapy - A hybrid multi-radionuclide sealed source for use in brachytherapy comprising a plurality of radionuclides is disclosed. The differing decay rates of the radionuclides in the hybrid multi-radionuclide sealed source combine a large initial dose of radiation followed by an extended dose of radiation contained within the single source. The sealed source may comprise a seed, a flexible strand, a rigid strand, a wire, a coil or a catheter.10-09-2008
20080249397APPARATUS AND METHOD FOR TARGETING A BODY TISSUE - An apparatus for targeting a desired target site on a body tissue that separates a first body cavity from a second body cavity of a patient includes a catheter having a longitudinally extending catheter lumen and adapted to provide access to the first body cavity. A framing member has a collapsed condition in which the framing member is adapted for insertion into the first body cavity through the catheter lumen and an expanded condition in which the framing member is adapted for placement within the first body cavity. At least one target point is carried by the framing member and is adapted for placement adjacent the body tissue to indicate the desired target site. A method of using the apparatus is also described.10-09-2008
20080275334System and method for determining the position of an instrument - The invention relates to a system and a method for a system featuring an electromagnetic position detection system and an instrument of which the position is able to be determined in at least one electromagnetic field created with the electromagnetic position detection system, with a device distorting the electromagnetic field being located at least partly in the electromagnetic field or a device distorting the electromagnetic field being able to be brought at least partly into the electromagnetic field, and with the position of the instrument being determined taking into account the position of the device or of a part of the device in the electromagnet field and the distortion of the electromagnetic field associated with it.11-06-2008
20120296202Method and System for Registration of Ultrasound and Physiological Models to X-ray Fluoroscopic Images - A method and system for registering ultrasound images and physiological models to x-ray fluoroscopy images is disclosed. A fluoroscopic image and an ultrasound image, such as a Transesophageal Echocardiography (TEE) image, are received. A 2D location of an ultrasound probe is detected in the fluoroscopic image. A 3D pose of the ultrasound probe is estimated based on the detected 2D location of the ultrasound probe in the fluoroscopic image. The ultrasound image is mapped to a 3D coordinate system of a fluoroscopic image acquisition device used to acquire the fluoroscopic image based on the estimated 3D pose of the ultrasound probe. The ultrasound image can then be projected into the fluoroscopic image using a projection matrix associated with the fluoroscopic image. A patient specific physiological model can be detected in the ultrasound image and projected into the fluoroscopic image.11-22-2012
20110208042Material for Creating Multi-Layered Films and Methods for Making the Same - The present invention provides multilayered materials, such as films usable in particular in medical devices in the form of vascular grafts, biocompatible coverings, and/or inflatable bladders, prosthesis for the endoluminal treatment of aneurysms, particularly aortic aneurysms including both abdominal aortic aneurysms (AAA's) and thoracic aortic aneurysms (TAA's).08-25-2011
20090118612Apparatus and Method for Vascular Access - In an aspect, embodiments of the invention relate to the effective and accurate placement of intravascular devices such as central venous catheters, in particular such as peripherally inserted central catheters or PICC. One aspect of the present invention relates to vascular access. It describes devices and methods for imaging guided vascular access and more effective sterile packaging and handling of such devices. A second aspect of the present invention relates to the guidance, positioning and placement confirmation of intravascular devices without the help of X-ray imaging. A third aspect of the present invention relates to devices and methods for the skin securement of intravascular devices and post-placement verification of location of such devices. A forth aspect of the present invention relates to improvement of the workflow required for the placement of intravascular devices.05-07-2009
20080281191METHOD OF CATHETER TRACKING USING IMAGE INFORMATION - An improved method of tracking a catheter's position within a human body does not rely on x-rays, but instead calculates the position of the catheter's imaging head by analyzing image data. Such an analysis is able to determine the position of the imaging head in 3 dimensional space, relative to an arbitrarily selected reference image. An image is compared with the reference image, correlation data between corresponding points on the two images are gathered, and a correlation loss rate in a particular direction is determined. This correlation loss rate is modeled to an exponential function, which is evaluated to estimate an angle of separation between the image and the reference image. One or more angles of separation are used to determine a position in three dimensional space of the image, relative to the reference image. By repeating this process for a series of images being gathered by a catheter, the position of the catheter can be determined. Additionally, a 3 dimensional map of lumens in the human body can be created.11-13-2008
20080281188DETECTING SYSTEM OF POSITION AND POSTURE OF CAPSULE MEDICAL DEVICE - A detecting system of the position and the posture of a capsule medical device includes a main body of the capsule medical device that is inserted in a living body, a coil in a capsule that is arranged to the main body of the capsule medical device and forms a resonant circuit, a magnetic field generating device that is arranged around the living body and generates the Alternating magnetic field for generating an induced magnetic field in the coil in the capsule, and a plurality of magnetic field detecting devices that detect the strength of the induced magnetic field generated by the coil in the capsule by the magnetic field generated by the magnetic field generating device.11-13-2008
20080287779Packaged Systems for Implanting Markers in a Patient and Methods for Manufacturing and Using Such Systems - Packaged systems for implanting a marker in a patient and methods for manufacturing and using such systems. In one embodiment, a packaged system comprises an introducer having a cannula and a stylet configured to be received in the cannula, a marker in the cannula, and a package having a sterile compartment. The marker can have a casing configured to be implanted in a patient and a resonating circuit in the casing. The resonating circuit can comprise a coil configured to wirelessly transmit a target signal in response to a wirelessly transmitted excitation signal. The introducer is contained within the sterile compartment. In another embodiment, the marker is not loaded in the introducer within the compartment of the package.11-20-2008
20080287777SYSTEM AND METHOD TO REGISTER A TRACKING SYSTEM WITH AN INTRACARDIAC ECHOCARDIOGRAPHY (ICE) IMAGING SYSTEM - A system to navigate an object traveling in an imaged subject is provided. The system includes a four-dimensional (4D) imaging system to create a first three-dimensional model of the acquired imaged data correlated relative to a time reference and defined relative to a first image coordinate system. A second imaging system creates a second three-dimensional model of the imaged subject defined relative to a second image coordinate system. A tracking system tracks movement and orientation of the object relative to a tracking coordinate system. A controller includes program instructions in combination with the processor operable to register the first and second image coordinate systems and the tracking coordinate system relative to a world coordinate system, and to combine the three-dimensional model created by the 4D imaging system with the three-dimensional model created by the second imaging system with a tracked location of the object relative to the world coordinate system.11-20-2008
20100280362TIME OF FLIGHT BASED TRACHEAL TUBE PLACEMENT SYSTEM AND METHOD - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include time of flight techniques.11-04-2010
20080281190SURGICAL PROCEDURES - A method of locating and identifying, during surgery, target regions within a body intended for excision of suspect tissue and/or removal of diseased organs or foreign objects, resides in implantation within the body proximate the suspect tissue or object prior to surgery of one or more passive integrated transponder tags and, at the time of and/or during surgery, scanning of the body with a radio frequency scanner or reader that activates the tag or tags and provides the surgeon with one or more signals indicative of the approximate location and unique identification of each of the tags, thereby to aid the surgeon in performance of the surgery. Verification of the success of the surgical procedure is obtained following surgery by scanning the site for absence of the tag or tags and/or by scanning the excised tissue for presence of the tag or tags.11-13-2008
20130218005MINIMALLY INVASIVE NEUROSURGICAL INTRACRANIAL ROBOT SYSTEM AND METHOD - Minimally invasive neurosurgical intracranial robot system is introduced to the operative site by a neurosurgeon through a narrow surgical corridor. The robot is passed through a cannula and is attached to the cannula by a latching mechanism. The robot has several links interconnected via revolute joints which are tendon-driven by tendons routed through channels formed in the walls of the links. The robot is teleoperatively guided by the neurosurgeon based on real-time images of the intracranial operative site and tracking information of the robot position. The robot body is equipped with a tracking system, tissue liquefacting end-effector, at as well as irrigation and suction tubes. Actuators for the tendon-driven mechanism are positioned at a distance from the imaging system to minimize distortion to the images. The tendon-actuated navigation of the robot permits an independent control of the revolute joints in the robot body.08-22-2013
20130218006CATHETER LOCATOR APPARATUS AND METHOD OF USE - This invention relates to a method of catheter and radiating coil location in a human body and in particular to the determination over time of the location of the tip of a catheter as it is inserted and during its use in the body. In particular when a radiating coil is used in conjunction with a catheter, a coil locating device can be used to determine the distance the coil is from the device and hence its depth in the body of a patient. To assist a clinician using the coil-locating device, a display is provided that shows both a reference image of a part or portion of a body (non-subject body) and an image of the coil located on the display with reference to the reference image. This is achieved by locating the coil-locating device on or over a predetermined landmark on the patient's body. The coil and its associated signal wires can be incorporated into a stylet, guide wire or a catheter. The coil locating device has a preferable triangular shape in plan view that allows its uppermost apex to be orientated towards the head of the patient and for an axis of the device to be aligned with the mid sagittal plane of the patient. Preferable landmarks on a human body include the xiphoid sternal junction and the caudal/mid sagittal aspect of the jugular sternal notch.08-22-2013
20120296203Automatic Identification Of Tracked Surgical Devices Using An Electromagnetic Localization System - A method and apparatus for identifying a member used in a navigation system. The navigation system can determine the identification of an instrument via an input. The input can be substantially automatic when an instrument is introduced into the navigation system field or assembly.11-22-2012
20080281189MEDICAL GUIDING SYSTEM - A medical guiding system of the invention includes: a detection portion for detecting at least one of position and orientation of a medical instrument; a storage portion for storing multiple reference image data obtained from a human body in multiple states and including anatomical positional information of at least one of viscus and organ; a state selection portion for selecting, among the stored reference image data, the reference image data obtained in a state coincident with or approximate to a state of the subject in using the medical instrument; and a guide image creation portion for creating a guide image showing at least one of an anatomical position, shape, and orientation of the medical instrument with respect to the subject, based on at least one of the position and the orientation of the medical instrument detected by the detection portion and reference image data stored in the state selection portion.11-13-2008
20080306380SHIELDING OF CATHETER HANDLE - Electrical apparatus includes a probe, having a proximal end and a distal end. The probe includes a sensor, which outputs a sensor signal, and a first connector at the proximal end of the probe, electrically coupled at least to the sensor. A probe adapter includes a second connector, which is arranged to mate with the first connector, and a third connector, for coupling to a console. A shield includes a material of high magnetic permeability, which is configured to enclose an internal volume containing the first and second connectors when the probe is connected to the probe adapter12-11-2008
20100324414CATHETER TRACKING AND ENDOCARDIUM REPRESENTATION GENERATION - Methods and systems are disclosed for determining information about a position of an object within a distribution of materials having different complex conductivities. The method includes: (i) causing current to flow in the distribution; (ii) measuring an electrical signal at each of multiple locations in the distribution of materials in response to the current flow; (iii) providing spatial information about the distribution of materials with respect to a first reference frame, the spatial information indicative of regions of different complex conductivity in the distribution of materials; and (iv) determining the position of the object with respect to the spatial information about the distribution of materials based on measured electrical signals and the spatial information. In certain embodiments, the object is a catheter inserted into a patients heart cavity for cardiac mapping.12-23-2010
20090264751DETERMINING THE POSITION OF AN ELECTRODE RELATIVE TO AN INSULATIVE COVER - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264750LOCATING A MEMBER IN A STRUCTURE - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264749IDENTIFYING A STRUCTURE FOR CANNULATION - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264748VOLUMETRICALLY ILLUSTRATING A STRUCTURE - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264747DETERMINING AND ILLUSTRATING TRACKING SYSTEM MEMBERS - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20120143048SURGICAL APPARATUS, EQUIPMENT AND METHODS - A surgical apparatus comprising: a base unit; an arm coupled to the base unit, the arm comprising a first section and a second section which are moveable with respect to each other about a joint, the arm being configured to receive a guide-tube; a tracking un it coupled to the joint and configured to track movement of the first section of the arm with respect to the second section of the arm; and a processor configured to: receive intra-operative image data relating to the guide-tube and the anatomy of a patient from which an initial position and orientation of the guide-tube relative to the anatomy of the patient can be determined, the image data including image data relating to a target location within the patient, receive tracking information from the tracking unit, and track the position and orientation of the guide-tube based on the initial position and orientation and the tracking information such that the guide-tube may be aligned with respect to the target location within the patient using the tracked position and orientation of the guide-tube to allow the delivery of a surgical instrument to the target location.06-07-2012
20090264746TRACKING A GUIDE MEMBER - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264745Method and Apparatus To Synchronize a Location Determination in a Structure With a Characteristic of the Structure - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264744Reference Structure for a Tracking System - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264743Interference Blocking and Frequency Selection - A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264742Determining and Illustrating a Structure - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264741Determining a Size of A Representation of A Tracked Member - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264740Locating an Introducer - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20090264739Determining a position of a member within a sheath - A system for determining a location of an instrument within an anatomy is provided. The system can include a first instrument, which can define at least one lumen. The system can further include a second instrument, which can be received through the at least one lumen. The system can include at least one electrode, which can be coupled to a distal end of the first instrument. The electrode can be responsive to electrical activity to generate at least one signal. The system can include a sensing unit, which can be in contact with the anatomy to sense electrical activity within the anatomy at a location near the instrument. The sensing unit can be in communication with the electrode to receive the signal. The system can further include a control module that can determine, based on the sensed electrical activity and the signal, the location of the first instrument.10-22-2009
20090264738METHOD AND APPARATUS FOR MAPPING A STRUCTURE - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20080208040Method for three-dimensional localization of an instrument for an interventional access and associated device - The invention relates to a method for three-dimensional localization of an instrument for an interventional access, comprising: creating a three-dimensional image recording covering a region of the intervention and surroundings; determining local attenuation values of the three-dimensional image recording by x-ray absorption characteristics; recording a two-dimensional image recording covering the region of the intervention and surroundings; determining an x-ray intensity at an x-ray sensor arranged on the instrument; localizing the x-ray sensor in the two-dimensional image recording based on the x-ray intensity; summing the local attenuation values along a virtual x-ray path passing through the x-ray sensor in the three-dimensional image recording; identifying a point on the virtual x-ray path where the attenuation sum corresponds to the x-ray intensity at the x-ray sensor; and determining a three-dimensional position of the point corresponding to the three-dimensional position of the x-ray sensor on the instrument.08-28-2008
20090264737PATELLA TRACKING - A device and methods for use in determining the trajectory of a patella of a patient during a navigated knee replacement surgical procedure are described. The device includes a first component including a mounting for attachment to a posterior surface of the patient's patella and a second component having an outer surface presenting a formation adapted to engage with a femoral part of the patient's knee. A slider mechanism allows the second component to translate relative to the first component in a substantially medial-lateral direction of the patient when the first component is attached to the patient's patella. The device can be used in a method to help determine the medial-lateral position for a patella implant.10-22-2009
20080287776GASTRIC BAND WITH POSITION SENSING - The problem of accessing an injection port transcutaneously is resolved using wireless position transducers in an inflation port assembly and in an injection syringe. The measurements provided by the transducers indicate to the practitioner the position and orientation of syringe relative to the injection port. A console provides a visual indication of the relative position and orientation so as to guide the practitioner to insert the syringe at the proper site and in the proper direction and to penetrate the port cleanly and correctly.11-20-2008
20100137705Surgical Navigation System with Magnetoresistance Sensors - A surgical navigation system having one or more magnetoresistance sensors, where the sensors have the noise and dynamic range appropriate for electromagnetic position and orientation tracking. The surgical navigation system comprising at least one magnetoresistance reference sensor rigidly attached to an anatomical reference of a patient, at least one magnetoresistance sensor attached to at least one device, and at least one processor for determining the position and orientation of the at least one device.06-03-2010
20100137707Registration of Human Anatomy Integrated for Electromagnetic Localization - A method for use during a procedure on a body. The method generates a display representing relative positions of two structures during the procedure. The method comprises the steps of storing an image data set in memory, the image data set representing the position of the body based on scans taken of the body prior to the procedure; reading the image data set stored in the memory, the image data set having a plurality of data points in known relation to a plurality of reference points for at least one of the two structures; placing one or more magnetic field sensors in known relation to the reference points of the two structures; generating a magnetic field; detecting the magnetic field with the magnetic field sensors; ascertaining the locations of the sensors based upon the magnetic field detected by the sensors and processing the locations of the sensors to generate a displaced image data set representing the relative position of the two structures during the procedure; and generating a display based on the displaced image data set illustrating the relative position of the two structures during the procedure.06-03-2010
20110208041TRANSDUCER/SENSOR ASSEMBLY - An imaging transducer assembly is combined with a sensor of a medical positioning system, forming a transducer/sensor assembly. In one embodiment, the sensor includes a coil proximally coupled with the imaging transducer. A cable having first and second wires are proximally coupled to the coil. A non-conductive potting layer is wrapped around the coil. Traces are formed in the non-conductive potting layer that are used to electrically couple the imaging transducer with the first and second wires of the cable.08-25-2011
20090030307INTRACORPOREAL LOCATION SYSTEM WITH MOVEMENT COMPENSATION - A method for position tracking includes placing an internal reference probe in a reference location within a heart of a subject, and collecting and processing first location coordinates of the internal reference probe during one or more respiratory cycles so as to define a range of the location coordinates corresponding to the reference location. An active device is inserted into the heart, and second location coordinates of the active device are collected. The first and second location coordinates are jointly processed so as to find relative location coordinates of the active device in a cardiac frame of reference. When a deviation of the first location coordinates from the range is detected, the relative location coordinates are corrected to compensate for displacement of the reference probe from the reference location.01-29-2009
20090030306Endoscope Shape Detecting Apparatus - A detecting apparatus includes: a change-over switch for switching on/off display of a scope model on a liquid crystal monitor; a position calculating portion for calculating respective positions of source coils; a scope model generating portion for generating a scope model of an electronic endoscope based on the respective positions of the source coils calculated by the position calculating portion; and a selector for selectively outputting to the liquid crystal monitor a display-pause-time image stored in a display-pause-time image storing portion and a scope model image from the scope model generating portion; and a control portion for controlling each of these portions. The detecting apparatus thus displays an insertion shape of the endoscope at a timing as needed.01-29-2009
20090088630Surgical navigation tracker, system and method - An adapter can be easily used to assist a surgical navigation system to determine the effector axis or the effector plane of a surgical device. The adapter has a body with a geometrical feature, the geometrical feature has a known relation with a navigation tracker device that can be attached to the adapter. When the adapter is held against a surgical device in a non-fixed manner, the effector axis or the effector plane of the device can be tracked by the surgical navigation system. The method includes a calibration method to determine the known relation between the effector axis or the effector plane and the location of the navigation tracker.04-02-2009
20120197108Method and Apparatus for Image-Based Navigation - A system and method for a procedure that can be performed on any appropriate subject. Procedures can include assembling any appropriate work piece or installing members into a work piece, such as an airframe, autoframe, etc. Regardless of the subject, tracking a substantially small tracking device in a plurality of degrees of freedom is provided. The tracking device can be positioned on or be formed in an instrument to be tracked.08-02-2012
20120197110Method and Apparatus for Image-Based Navigation - A system and method for a procedure that can be performed on any appropriate subject. Procedures can include assembling any appropriate work piece or installing members into a work piece, such as an airframe, autoframe, etc. Regardless of the subject, tracking a substantially small tracking device in a plurality of degrees of freedom is provided. The tracking device can be positioned on or be formed in an instrument to be tracked.08-02-2012
20090137901METHOD AND SYSTEM FOR REGISTERIING A MEDICAL SITUATION ASSOCIATED WITH A FIRST COORDINATE SYSTEM, IN A SECOND COORDINATE SYSTEM USING AN MPS SYSTEM - System for registering a first image with a second image, the system including a first medical positioning system for detecting a first position and orientation of the body of a patient, a second medical positioning system for detecting a second position and orientation of the body, and a registering module coupled with a second imager and with the second medical positioning system, the first medical positioning system being associated with and coupled with a first imager, the first imager acquiring the first image from the body, the first imager producing the first image by associating the first image with the first position and orientation, the second medical positioning system being associated with and coupled with the second imager, the second imager acquiring the second image and associating the second image with the second position and orientation, the registering module registering the first image with the second image, according to the first position and orientation and the second position and orientation.05-28-2009
20090137900Methods and Apparatus for Locating Body Vessels and Occlusions in Body Vessels - Methods and apparatus employed to locate body vessels and occlusions in body vessels finding particular utility in cardiac surgery, particularly minimally invasive cardiac surgery to locate cardiac arteries and occlusions in cardiac arteries are disclosed. An elongated vessel lumen probe incorporating a lumen probe element at or near the elongated vessel lumen probe distal end is advanced into the vessel lumen. A vessel surface probe manipulated by the surgeon and having a surface probe element sensor is employed to detect the lumen probe element and to follow the progress of the vessel lumen probe element as it approaches and is advanced through or is blocked by an occlusion. In the location of a coronary artery, the surface probe element sensor is moved about against the epicardium over the suspected location of the artery of interest until a surface probe element sensor of the present invention at the surface probe distal end interacts with the lumen probe element of the vessel lumen probe.05-28-2009
20100274124Method and Apparatus for Surgical Navigation - A surgical navigation system for navigating a region of a patient that may include a non-invasive dynamic reference frame and/or fiducial marker, sensor tipped instruments, and isolator circuits. The dynamic reference frame may be placed on the patient in a precise location for guiding the instruments. The dynamic reference frames may be fixedly placed on the patient. Also the dynamic reference frames may be placed to allow generally natural movements of soft tissue relative to the dynamic reference frames. Also methods are provided to determine positions of the dynamic reference frames. Anatomical landmarks may be determined intra-operatively and without access to the anatomical structure.10-28-2010
20090187098Devices, Systems and Methods for Diagnosing and Treating Sinusitis and Other Disorders of the Ears, Nose, and/or Throat - Various diagnostic procedures and devices are used to perform imaging studies, mucus flow studies, air/gas flow studies, anatomic dimension studies, endoscopic studies and transillumination studies. Devices and methods for visually confirming the positioning of a distal end portion of an illuminating device placed within a patient include inserting a distal end portion of an illuminating device internally into a patient, emitting light from the distal end portion of the illuminating device, observing transillumination resulting from the light emitted from the distal end portion of the illuminating device that occurs on an external surface of the patient, and correlating the location of the observed transillumination on the external surface of the patient with an internal location of the patient that underlies the location of observed transillumination, to confirm positioning of the distal end portion of the illuminating device.07-23-2009
20090088629Dynamic reference method and system for interventional procedures - An interventional device configured for placement in or near an internal organ or tissue is provided. The interventional device includes a reference portion having three or more sensor elements. In one implementation, the interventional device and associated sensor elements provide dynamic referencing of the internal organ, tissue or associated vasculature after registration of the sensor data with images and/or volumetric representations of the internal organ or tissue.04-02-2009
20120071754EM TRACKING SYSTEMS FOR USE WITH ULTRASOUND AND OTHER IMAGING MODALITIES - An EMT system for use in ultrasound and other imaging modality guided medical procedures. The system includes a tool set of various components to which EM sensors can be releasably secured. Thus, the sensors can be reused, notwithstanding the disposal of other components of the tool set. Various components of the tool set include keying elements to facilitate their registration to the anatomy of the patient undergoing the procedure via the EM sensors.03-22-2012
20090137899Devices, systems, and methods for locating magnetic injection fill ports - Devices, systems, and methods provide accurate and consistent identification of the center of a magnetic infusion port.05-28-2009
20110224539METHODS FOR POSITIONING AN ULTRASONIC CATHETER - An emitter may be disposed in a patient. Output from the emitter may be detected by a detector connected with the guide rod and by a detector connected with the tracheal tube. Alternatively, a detector may detect the output from an emitter connected with the guide rod and by an emitter connected with the tracheal tube. Emitter units may be ultrasonic transducers and emit ultrasonic energy. The detector may respond to ultrasonic energy.09-15-2011
20090281418DETERMINING TISSUE SURROUNDING AN OBJECT BEING INSERTED INTO A PATIENT - It is described a method for determining and assessing the tissue surrounding an object being inserted into a patient. The method comprises acquiring a first dataset representing a first 3D image of the patient, acquiring a second dataset representing a second 3D image of the blood vessel structure of the patient and acquiring a third dataset representing a 2D image of the patient including the object. The method further comprises recognizing the object within the 2D image, registering two of the three datasets with each other, whereby the object is back-projected in the blood vessel structure, in order to generate a first combined dataset, and registering the first combined dataset with the remaining dataset in order to generate a second combined dataset representing a further image surrounding the object. The method allows for combining diagnostic scanning such as CT, 3D RA and real-time 2D fluoroscopy. Thereby, it is possible to generate an image perpendicular to a catheter tip representing the object being inserted into the patient. Since the 3D-RA displays the lumen and the diagnostic scanning displays soft-tissue, it is possible to assess the tissue at the catheter tip position.11-12-2009
20090005675Apparatus and Method for Endovascular Device Guiding and Positioning Using Physiological Parameters - An endovascular access and guidance system has an elongate body with a proximal end and a distal end; a non-imaging ultrasound transducer on the elongate body configured to provide in vivo non-image based ultrasound information of the vasculature of the patient; an endovascular electrogram lead on the elongate body in a position that, when the elongate body is in the vasculature, the endovascular electrogram lead electrical sensing segment provides an in vivo electrogram signal of the patient; a processor configured to receive and process a signal from the non-imaging ultrasound transducer and a signal from the endovascular electrogram lead; and an output device configured to display a result of information processed by the processor. An endovascular device has an elongate body with a proximal end and a distal end; a non-imaging ultrasound transducer on the elongate body; and an endovascular electrogram lead on the elongate body in a position that, when the endovascular device is in the vasculature, the endovascular electrogram lead is in contact with blood. The method of positioning an endovascular device in the vasculature of a body is performed by advancing the endovascular device into the vasculature; transmitting a non-imaging ultrasound signal into the vasculature using a non-imaging ultrasound transducer on the endovascular device; receiving a reflected ultrasound signal with the non-imaging ultrasound transducer; detecting an endovascular electrogram signal with a sensor on the endovascular device; processing the reflected ultrasound signal received by the non-imaging ultrasound transducer and the endovascular electrogram signal detected by the sensor; and positioning the endovascular device based on the processing step.01-01-2009
20110144479SYSTEMS AND METHODS FOR DETERMINING THE POSITION AND ORIENTATION OF MEDICAL DEVICES INSERTED INTO A PATIENT - A medical device system includes an elongated body with a distal end that is configured and arranged for insertion into a patient. A housing is disposed in the distal end of the body. A rotatable magnet is disposed in the housing. At least one magnetic field winding is configured and arranged to generate a magnetic field at the location of the magnet. The magnetic field causes rotation of the magnet at a target frequency. An array of magnetic field sensors is disposed external to the patient. The magnetic field sensors are configured and arranged to sense the location and orientation of the magnet in relation to the array of magnetic field sensors.06-16-2011
20090054761Medical system, method, and storage medium concerning a natural orifice transluminal medical procedure - A medical system includes a catheter, a sensor, 3-D image data representative of a patient, and a computer. The catheter has a catheter distal end insertable into a natural orifice of a body lumen of the patient. The sensor is disposable proximate the catheter distal end and is adapted to provide position data. The computer is adapted: to receive an indication from a user of a medical target selected for a medical procedure which uses at least the catheter and which is to be performed within the patient; and to indicate to the user position information of the catheter distal end relative to the medical target using at least the 3-D image data and the position data. A storage medium contains a program readable by a computer which instructs the computer to perform the previously described steps. A method for assisting a medical procedure performs the above-described steps.02-26-2009
20090062641Method and system for catheter detection and tracking in a fluoroscopic image sequence - A method and system for detecting and tracking an ablation catheter tip in a fluoroscopic image sequence is disclosed. Catheter tip candidates are detected in each frame of the fluoroscopic image sequence using marginal space learning. The detected catheter tip candidates are then tracked over all the frames of the fluoroscopic image sequence in order to determine an ablation catheter tip location in each frame.03-05-2009
20110224538Echo-Opaque Catheter and method of use - A system and its method of use for identifying a patient's urethral anatomic course for the precise placement of a treatment element into the patient's prostate, wherein a echo-opaque catheter is introduced into a urethra until its echogenic and radio-opaque portion is generally aligned with a treatment site of the prostate. An image probe is positioned relative to the treatment site and the urethra and is activated to obtain a real time image of the prostate, and urethra. The echo-opaque catheter may be made of an elongated flexible catheter, which is coated with, incorporate with or enclosed by materials that enhances the ultrasound and radio visualization.09-15-2011
20110224540CARDIAC NAVIGATION SYSTEM INCLUDING ELECTRODE ARRAY FOR USE THEREWITH - A cardiac navigation system including a mapping catheter, a control system coupled to the mapping catheter, an electrode array, and means for driving an electrical current across the electrode array. The mapping catheter includes means for sensing an electrical field. The control system includes means for receiving sensed signals from the mapping catheter. The cardiac navigation system includes at least one electrode array including means for providing an electrical field across three axes. The three axes are approximately orthogonal with respect to one another. The means for driving an electrical current across the three axes includes means for providing a plurality of individual current sources to the electrode array. As such, the cardiac navigation system presented provides a more uniform sheet of current across an area of interest, the mapping catheter senses the electrical field across the area of interest, and the control system determines a three-dimensional location of the mapping catheter based on the sensed electrical field.09-15-2011
20090024023THERMAL SURGICAL MONITORING - An apparatus is disclosed for monitoring a thermal surgical procedure including a thermal camera for monitoring temperature at a plurality of locations within at least a portion of a surgical field undergoing thermal surgical treatment and generating a series of thermal images based on said monitoring, a processor for processing the thermal images, and a display for displaying, in real time, a series of display images indicative of temperature at the plurality of positions.01-22-2009
20080306378METHOD AND SYSTEM FOR IMAGES REGISTRATION - A method for registering images acquired by at least one imaging system. The method includes:positioning at least a first sensor (S) interdependent on the imaging system; positioning at least a second sensor (P) so as to make it interdependent on the movements of an organ of a patient of which at least two images are taken; acquiring the positions of said sensors (S, P) during acquisitions of the images; and registering the images according to the positions of the sensors (S, P). A system for registering images acquired by at least one imaging system includes means for acquiring the position of at least a first sensor interdependent on the imaging system and of at least a second sensor interdependent on the movements of an organ of a patient of which two images are taken, the registration being performed according to the positions of the sensors at the moment when the images are acquired.12-11-2008
20080306379MEDICAL GUIDING SYSTEM - A medical guiding system of the invention includes: a detection portion for detecting a position and an orientation of a medical instrument and positions of feature points of a subject; a storage portion for storing reference image data having positional information on an organ of a human body; and a guide image creation portion for creating a guide image indicating the position of the medical instrument with respect to the subject from the reference image data. The guide image creation portion calculates the position of the medical instrument with respect to the subject, based on the position and the orientation of the medical instrument and the positions of feature points of the subject which are detected by the detection portion, and creates a guide image by correcting the calculated position of the medical instrument, using the positions of the feature points.12-11-2008
20090198124WORKFLOW TO ENHANCE A TRANSJUGULAR INTRAHEPATIC PORTOSYSTEMIC SHUNT PROCEDURE - A method and appertaining system are provided for performing an image-assisted subject procedure. The method comprises obtaining at least a first and a second 2D projected image of a 3D subject from a first angle and a second angle. A user selects at least a first point and a second point in each of the first and second 2D images, and the system calculates 3D positions of the first point and the second point based on the selected points in the 3D images and the first and second angles. The, a 3D line is calculated between the first and second points. A further projected 2D image is created that includes the calculated 3D position of at least one of: a) one of the points; and b) the line. The subject procedure is then subsequently performed utilizing the further projected 2D image as a guide.08-06-2009
20090054760Catheter for Enhanced Image Location Detection - A catheter is used to assist in imaging, e.g., 3D imaging, an anatomical location in a human or veterinary subject. The catheter includes a plurality of horizontal markings which extend in the longitudinal direction between the distal and proximal ends. The horizontal markings can be made throughout the entire length of the catheter, or at one or more locations. At each location, the horizontal markings will appear as successive sets of markings. Each horizontal marking is made of two markings that are the same length. The two markings are arranged such that identically sized gaps between the ends of the markings are positioned on the front and back side of the catheter. In one embodiment, an image where the source and catheter are precisely aligned will show gaps of succeeding larger or smaller sizes. However, when the source is off center the gap lengths will be smaller or not exist. Particular marking locations can be highlighted by using relatively thinner or thicker markings and/or by spacing the markings progressively closer together or further apart.02-26-2009
20090082666MAGNETIC TARGETING SYSTEM FOR FACILITATING NAVIGATION - The present invention describes a magnetic targeting system suitable for guiding a biocompatible device to a target area within the body (in vivo) and method of using the same. The system includes a targeting member having a steering material and is attached to the biocompatible device. The system also includes at least one anchoring member constructed and arranged for the inclusion of a magnetic material effective for influencing the traversal of the steering material, in vivo. The magnetic material is configured and sized so as to positionable external of the anchoring member, in vivo. The magnetically influenced anchoring member interacts with the targeting member such that the biocompatible device is positionable relative to the target area. An extender and connector have threads indexed to a securing set screw to facilitate positioning and affixation of the biocompatible material03-26-2009
20090082665SYSTEM AND METHOD FOR TRACKING MEDICAL DEVICE - In one embodiment, a method of detecting a distortion is provided. The method comprises steps of identifying a change in transmitter gain for a first transmitter coil, identifying a change in transmitter gain for a second transmitter coil, comparing the change in transmitter gain for the first transmitter coil with the change in transmitter gain for the second transmitter coil and identifying a first condition upon determining that the change in transmitter gain for the first transmitter coil is different from the change in transmitter gain for the second transmitter coil.03-26-2009
20120302877COMBINED ABLATION AND ULTRASOUND IMAGING - The present invention relates to a system (11-29-2012
20110230758System and method for determining the position of the tip of a medical catheter within the body of a patient - Method and system for determining the current position of a selected portion of a medical catheter inserted into a tubular organ (09-22-2011
20090209849Medical Device Placement and Monitoring System Utilizing Radio Frequency Identification - A medical device placement and monitoring system is provided that includes numerous circuits that can be used alone or in combination. The circuits include a feedback initiator, a feedback receiver, and a clinician notifying device. By various means in the provided circuits, the feedback initiator provides information about the location of a radio frequency identification tag secured to a medical device inserted within a patient. This information or data is received and analyzed by the feedback receiver that monitors the circuit, which then transmits an output to the clinician notifying device to alert or advise the attending clinician of this information. The data that is output supplies information about the location of the radio frequency identification tag to the clinician, thereby assisting the clinician in placement of a variety of medical devices including nasogastric or endotracheal tubes, as well as in monitoring proper device placement after initial insertion.08-20-2009
20080262343DEVICE FOR DETECTING SPATIAL POSITION - The invention relates to a device for detecting spatial position, which can be attached via a mounting device to a surgical instrument, which has a longitudinal axis, wherein the mounting device has a through opening, which is penetrated by the instrument, wherein the mounting device is mounted so as to be rotatable around the longitudinal axis of the instrument, and wherein the mounting device can be immobilized in an axial and a radial direction via two angular ball bearings.10-23-2008
20080262342CT-Enhanced Fluoroscopy - Real-time, enhanced imaging of remote areas, too minute for CT imaging, is made possible through a probe having a radiopaque tip as well as radiopaque volume markers. When deployed, the markers outline the space containing the tip such that both the tip and the volume containing the tip are viewable on a fluoroscope. This device may be used in conjunction with or independently of 3-D volumes created from CT scans and 3-D tip sensors.10-23-2008
20120078087Tissue Localization Device and Method - A system for localizing tissue in a single MRI session is disclosed. The system comprises an MRI compatible localizing obturator selectively insertable through the working channel of an introducer cannula or sheath and configured for insertion through a tissue pathway to a target tissue site. The obturator includes an elongate shaft having open proximal and distal ends and an inner lumen extending between the open proximal and distal ends. At least one MRI image-enhancing component is disposed on and/or within the distal end of the obturator. The system further includes an MRI compatible localizing wire slidable within the inner lumen of the obturator. The wire defines an elongate body having first and second ends and an anchoring member adjacent to one of the first and second ends, the anchoring member adapted to engage tissue so that the wire remains in the patient upon removal of the obturator.03-29-2012
20120078086Localizing Obturator with Site Marking Capability - A target localizing and marking device is provided including a cannula having proximal and distal ends and a lumen therebetween, and a tip member releasably attached to the distal end, where the tip member includes and outer shell and at least one inner chamber. The device further includes at least one image enhancing component disposed on the outer shell and/or within the at least one inner chamber, at least one marking component disposed in the at least one inner chamber, and a tip member deployment mechanism. The deployment mechanism has a manually engageable actuator, a portion of which is dimensioned to slidably pass through the lumen of the cannula, and is operable to separate the tip member from the cannula and deploy the tip member to a predetermined target site. In some implementations, the device is magnetic resonance imaging (MRI) compatible and is identifiable under MRI.03-29-2012
20090005674SHAPE-SENSING EXPANDABLE MEMBER - An expandable member for characterizing a three-dimensional space within a mammalian body is described. The expandable member is delivered to a target region in a deflated state where it is expanded by inflation of the member. Sensory transducers that contact the member relay sensory information generated when the member is in an expanded state to a microprocessor located outside the body. Using the sensory information, a data-driven picture that characterizes the three-dimensional space within the body is created with a microprocessor. The apparatus is useful in preparation for minimally invasive surgical therapy.01-01-2009
20080319313COMPUTER-ASSISTED SURGERY SYSTEM WITH USER INTERFACE - A method for establishing an interaction between an operator and a monitor of a computer-assisted surgery system comprises tracking a tool manipulated by the operator for providing surgical data calculated from the position/orientation of the tool. A desired interaction is identified from the operator by tracking the tool reaching a specific position and/or a specific orientation. An interactive action is activated on a monitor as a function of the desired interaction, the interactive action being unrelated to said surgical data. A motion of the tool is converted to additional interactions related to said interactive action. A computer-assisted surgery system is also provided.12-25-2008
20090221909Apparatus and Methods for Delivering Stem Cells and Other Agents Into Cardiac Tissue - A system for delivering an agent to tissue surrounding a target vessel includes an elongate delivery device and a source coupled to a proximal tubular portion of the device. A first lumen extends through the tubular portion and an expandable sheath of the device, wherein the expandable sheath has a proximal end that surrounds and overlies a distal end of the tubular portion. The device further includes a stiffening member, attached to the sheath, and a balloon attached to the stiffening member, at a location spaced apart from the sheath. A second lumen extends, within the tubular portion and the stiffening member, to the balloon. A volume of fluid may be delivered, from the source, through the first lumen and into a section of the target vessel that is downstream from the expandable sheath and upstream of the balloon, in order to expand the sheath, fill the section and apply a pressure sufficient to cause extravasation of the section.09-03-2009
20090221908System and Method for Alignment of Instrumentation in Image-Guided Intervention - The invention provides systems and methods for aligning or guiding instruments during image-guided interventions. A volumetric medical scan (image data) of a patient may first be registered to patient space data regarding the patient obtained using a tracking device. An ultrasound simulator fitted with position indicating elements whose location is tracked by the tracking device is introduced to the surface of the anatomy of the patient and used to determine an imaginary ultrasound scan plane for the ultrasound simulator. This scan plane is used to reformat the image data so that the image data can be displayed to a user in a manner analogous to a handheld ultrasound transducer by re-slicing the image data according to the location and orientation of the ultrasound simulator. The location of an instrument fitted with position indicating elements tracked by the tracking device may be projected onto the re-sliced scan data.09-03-2009
20090203992HYBRID MAGNETIC- BASE AND IMPEDANCE-BASED POSITION SENSING - A position sensing system includes a probe adapted to be introduced into a body cavity of a subject. The probe includes a magnetic field transducer and at least one probe electrodes. A control unit is configured to measure position coordinates of the probe using the magnetic field transducer. The control unit also measures an impedance between the at least one probe electrodes and one or more points on a body surface of the subject. Using the measured position coordinates, the control unit calibrates the measured impedance.08-13-2009
20080319312Method and System Eliminating Electromagnetic Interference in a Medical Image, in Real-Time - In a medical apparatus including a medical imaging system and a medical position and navigation system (MPS), the medical imaging system including an imaging transmitter, periodically emitting imaging radiation and an imaging detector, the medical position and navigation system including at least one MPS transmitter periodically transmitting MPS radiation and at least one MPS detector, the MPS radiation electromagnetically interfering with at least one mode of operation of the imaging detector, a device for eliminating interference to the imaging detector caused by positioning radiation, the device comprising a synchronizer, coupled with the medical imaging system and with the medical position and navigation system, synchronizing the imaging detector and each the at least one MPS transmitter, so that neither of the at least one MPS transmitter transmits during the at least one mode of operation of the imaging detector.12-25-2008
20090253985APPARATUS AND METHOD FOR LORENTZ-ACTIVE SHEATH DISPLAY AND CONTROL OF SURGICAL TOOLS - The Lorentz-Active Sheath (LAS) serves as a conduit for other medical devices such as catheters, balloons, biopsy needles, etc. The sheath is inserted through a vein or other body orifice and is guided into the area of the patient where the operation is to be performed. The position and orientation of the LAS is tracked via an industry standard position detection system which senses electrical signals that are emitted from several electrodes coupled to the LAS. The signals received from the LAS are used to calculate an accurate and reliable assessment of the actual position of the LAS within the patient. The electrode signals also serve to create a reference frame which is then used to act as a motion compensation filter and fiducial alignment system for the movement of the LAS-hosted medical tool.10-08-2009
20090247861CALIBRATION METHOD FOR AXIALLY DETERMINATE MEDICAL INSTRUMENTS - The invention relates to a calibration method for an axially determinate medical instrument, wherein: 10-01-2009
20090259123METHOD AND DEVICE FOR 3D ACQUISITION, 3D VISUALIZATION AND COMPUTER GUIDED SURGERY USING NUCLEAR PROBES - A device for 3D acquisition, 3D visualization and computer guided surgery with a tracking system, which can be for example an external optical tracking system (10-15-2009
20090318796Patch and sensor assembly for use in medical device localization and mapping systems - An patch and sensor assembly for use in an EP mapping system has two portions: a reusable portion and a disposable portion. The reusable portion houses the biosensors used in magnetic based location and mapping systems and the electrical lead necessary to communicate between the biosensor and the mapping system. The reusable portion may also contain a portion of the electrode necessary to receive electrical signals from the body of the patient. The disposable portion of the patch and sensor assembly contains an adhesive covered flexible patch having at least a portion of the electrode used to receive electrical signals form the body of the patient and may contain the electrical lead necessary to communicate such an electrical signal to the mapping system. The disposable portion contains a receptacle adapted to receive and mechanically secure the reusable portion to the disposable portion of the assembly. Such a patch and sensor assembly is useful in hybrid magnetic and impedance based location and mapping systems such as those used in electrophysiology.12-24-2009
20080319311SYSTEM AND METHOD FOR ACCURACY VERIFICATION FOR IMAGE BASED SURGICAL NAVIGATION - Certain embodiments of the present invention provide for a system and method for assessing the accuracy of a surgical navigation system. The method may include acquiring an X-ray image that captures a surgical instrument. The method may also include segmenting the surgical instrument in the X-ray image. In an embodiment, the segmenting may be performed using edge detection or pattern recognition. The distance between the predicted location of the surgical instrument tip and the actual location of the surgical instrument tip may be computed. The distance between the predicted location of the surgical instrument tip and the actual location of the surgical instrument tip may be compared with a threshold value. If the distance between the predicted location of the surgical instrument tip and the actual location of the surgical instrument tip is greater than the threshold value, the user may be alerted.12-25-2008
20100274123SYSTEM AND METHOD FOR MAPPING ELECTROPHYSIOLOGY INFORMATION ONTO COMPLEX GEOMETRY - The instant invention relates to an electrophysiology apparatus and method used to measure electrical activity occurring in a portion of tissue of a patient and to visualize the electrical activity and/or information related to the electrical activity. In particular, the instant invention relates to three-dimensional mapping of the electrical activity and/or the information related to the electrical activity.10-28-2010
20100274120SYNCHRONOUS INTERVENTIONAL SCANNER - When performing an interventional CT scan on a subject, radiation dose is limited by employing a dynamic collimator (10-28-2010
20090318797SYSTEM AND METHOD FOR DEFLECTING ENDOSCOPIC TOOLS - An endoscope sheath, comprising: 12-24-2009
20090318799Position Detection in a Magnetic Field - This patent document discusses assemblies and methods for remotely detecting a position of a surgical instrument in the presence of a magnetic field. In varying examples, a position detection system includes an encoder coupled to move in concert with the instrument. The encoder includes an a translucent substrate and light blocking indicia disposed thereon. A light source and a light detector array are effectively disposed outside of the magnetic field. Light from the light source is carried to an encoder first side using an input optical fiber, while the light passing through the encoder is received at an encoder second side by an output optical fiber. The light received by the output optical fiber is transmitted to the light detector array, which converts the received light to position representative electrical signals. Such signals are subsequently transmitted to a control module adapted to formulate and convey a position of the instrument.12-24-2009
20090318798FLEXIBLE VISUALLY DIRECTED MEDICAL INTUBATION INSTRUMENT AND METHOD - A flexible medical intubation instrument provided for placement into an animal or human patient comprises a catheter with at least one longitudinally extending lumen or channel. A fixed or slideably removable sensor cable is at least partially contained within the channel, having a sensor for sensing a characteristic or condition. While enabling observations through the sensor channel, the working channel may simultaneously function as a drain or an irrigation duct, a feeding tube, or to provide a passage for the insertion of one or a succession of surgical devices such that the catheter serves as a protective artificial tract or liner as surgical devices are inserted and removed through it in succession so as to minimize tissue trauma.12-24-2009
20100160770CATHETER DISPLAY SHOWING TIP ANGLE AND PRESSURE - A method for displaying information includes receiving a measurement with respect to an invasive probe inside a body of a subject of at least one probe parameter, selected from a group of parameters consisting of a bend angle of the probe and a pressure on the probe. Responsively to the measurement, an icon is displayed on a display screen representing the at least one probe parameter for viewing by an operator of the probe.06-24-2010
20100160769ELECTRODE DATA ANALYSIS TO INDICATE CATHETER STABILITY AND/OR NEEDLE PENETRATION SUCCESS - Determining stability of a catheter is described. A first signal originating from a first region of a patient is monitored and a second signal originating from a second region of the patient is monitored. First components from a recurring interval of the second signal are extracted, where the recurring interval is defined by the first signal. The first components are compared to determine a first similarity value of the first components over time. The first similarity value is compared to a threshold value to determine a stability evaluation for a source of the second signal.06-24-2010
20100261997System and Method for Molecular Breast Imaging with Biopsy Capability and Improved Tissue Coverage - An dual head molecular based imaging system includes at least one gamma camera having slanted collimators The use of one or more slant collimators can greatly improve viewing coverage of a dual-head gamma camera breast imaging system, providing improved three-dimensional localization and biopsy capability as well as improved coverage of axilla and chest wall tissue. The dual-head gamma camera breast imaging capability may be provided in a dedicated system, or alternatively as part of a fused x-ray, molecular based imaging system.10-14-2010
20100168559ACCELEROMETER-BASED CONTACT SENSING ASSEMBLY AND SYSTEM - A catheter system including an accelerometer-based sensing assembly is provided. In particular the present teachings relate to an accelerometer based assembly used to determine contact between a catheter and surrounding proximate tissue, such as cardiac tissue. An embodiment of such a system may, for example, be used for visualization, mapping, ablation, or other methods of diagnosis and treatment of tissue and/or surrounding areas.07-01-2010
20100168557MULTI-ELECTRODE ABLATION SENSING CATHETER AND SYSTEM - The invention is directed to a multi-electrode ablation sensing catheter and system suitable for medical procedures such as cardiac ablation. In one embodiment of the invention, a catheter is provided having an elongated catheter shaft and a catheter tip having two or more closely spaced electrodes mounted on the catheter tip, where the electrodes are coupled to a plurality of electronic circuitries and are used for electrogram sensing, impedance sensing, and location sensing and orientation. In another embodiment of the invention, a catheter system is provided having a catheter with an elongated catheter shaft and a catheter tip with two or more closely spaced electrodes mounted on the catheter tip, and an RF generator circuitry, an electrogram sensing circuitry, an impedance sensing circuitry, and a location sensing and orientation circuitry.07-01-2010
20100261996MEDICAL DEVICE AND TECHNIQUE FOR USING SAME - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include backscattered intensity measurements.10-14-2010
20100168558METHOD AND APPARATUS FOR THE CANCELLATION OF MOTION ARTIFACTS IN MEDICAL INTERVENTIONAL NAVIGATION - A method and apparatus for mapping a location of a point within the body is disclosed. A plurality of positional reference nodes are determined, each aligned on a first element. A second element is mapped with reference to the plurality of reference nodes to determine the relative location of a point on the second element.07-01-2010
20100261999SYSTEM AND METHOD TO DETERMINE THE POSITION OF A MEDICAL INSTRUMENT - A medical imaging method for the navigation of a guidable medical instrument intended to be moved inside the body of a patient, comprising: receiving at least one 2D image of a cavity of a patient, acquired by an acquisition device, for which cavity a 3D representation is available; receiving at least one data item on the force applied to the medical instrument to control a guiding of the medical instrument inside the patient's body; and combining data derived from information on applied force, the 2D image and the 3D representation to determine the position of the medical instrument.10-14-2010
20100261995MEDICAL DEVICE AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include interferometry.10-14-2010
20100261998HIP IMPLANT REGISTRATION IN COMPUTER ASSISTED SURGERY - A computer assisted surgical navigation system and method is disclosed for registering the position of prosthetic hip joint components. Elements are applied to the pelvis and femur, generating a three-dimensional array. These two arrays combine to derive a reference point representing the native joint. A tracking device with a pre-determined shape and dimensions that precisely articulate with an acetabular cup component generates a third three-dimensional array. The device has a further shape and dimensions that independently articulate precisely with a neck portion of a femoral component, which represents a prosthetic joint center that is independently registered in the system. The tracking device concurrently registers the three dimensional positions of the femoral and acetabular prosthetic components, along with the prosthetic joint center and the native joint center, respectively enabling alterations in three dimensional location of the leg length and offset prior to reduction of the prosthetic joint.10-14-2010
20100185082DEVICE AND METHOD FOR ELECTROSURGERY - A method and apparatus are disclosed for improving accuracy of placement of a cannula during delivery of electrical energy to neural structures. The apparatus includes a cannula operable to deliver electrical current where a portion of the cannula is electrically insulated and a portion of the cannula is exposed and electrically conductive. The cannula further includes a radiopaque marker located to differentiate the electrically insulated region from the electrically exposed region by allowing it to be more clearly delineated using fluoroscopy or other radiographic imaging techniques. The cannula may be used to treat pain by delivering energy to a neural structure.07-22-2010
20100191103APPARATUS AND METHOD FOR SURGICAL BYPASS OF AQUEOUS HUMOR - The invention provides minimally invasive microsurgical tools and methods to form an aqueous humor shunt or bypass for the treatment of glaucoma. The invention enables surgical creation of a tissue tract (07-29-2010
20120143049INTEGRATED SURGICAL DEVICE COMBINING INSTRUMENT, TRACKING SYSTEM AND NAVIGATION SYSTEM - The invention relates to an image guided surgery system comprising—a surgical instrument (06-07-2012
20110060213Method and Apparatus for Positioning a Reference Frame - A method and apparatus to perform a procedure that can include a processor assisted surgical procedure. During the procedure patient space and image space can be registered to allow for tracking of various tracking sensors. A dynamic reference frame can be used to maintain localization of the patient space with the image space. The dynamic reference frame can be fixedly interconnected with a bone portion of the anatomy.03-10-2011
20110060212METHODS AND APPARATUS FOR FLOW RESTORATION - Methods for restoring blood flow in occluded blood vessels using an apparatus having a self expandable distal segment that is pre-formed to assume a superimposed structure in an unconstrained condition but can be made to take on a volume-reduced form making it possible to introduce it with a microcatheter and a push wire arranged at the proximal end, with the distal segment in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal segment has a tapering structure at its proximal end where the strings or filaments or struts converge at a connection point.03-10-2011
20100217116SYSTEM AND METHOD FOR VISUALIZING HEART MORPHOLOGY DURING ELECTROPHYSIOLOGY MAPPING AND TREATMENT - Systems and methods for facilitating visual detection of one or more catheter tips in relation to the morphology of an anatomical structure—in real-time—are provided. The disclosed systems and methods are particularly useful for locating reference catheters relative to heart tissue using an automated navigation support that draws upon prominent image features that are visible in the x-ray fluoroscopy images. According to exemplary embodiments, prominent features include one or more catheter tips of reference catheter(s) that are typically placed at known standard positions in relation to the anatomical structures. Based on the noted prominent features, the systems and methods of the present disclosure are effective in achieving alignment of the anatomical structures, e.g., the heart morphology, with the interventional devices, e.g., ablation catheter(s) introduced by the physician, and generating a fused or overlaid image. Advantageous computer software products are also disclosed.08-26-2010
20100217117METHOD, SYSTEM AND DEVICES FOR TRANSJUGULAR INTRAHEPATIC PORTOSYSTEMIC SHUNT (TIPS) PROCEDURES - The invention provides systems and methods for assisting/performing image-guided transjugular intrahepatic portosystemic shunt (TIPS) procedures in a portion of an anatomy of a patient, including a guide needle portion comprising a hollow tube having a bend toward its distal tip and a puncture needle portion that includes at least one position indicating element at its tip. The puncture needle is slidably mounted within the hollow tube of the guide needle such that a distal tip of the puncture needle can be extended from an opening in the distal tip of the guide needle and used to place a shunt between the portal and hepatic veins of a patient. The position indicating element of the puncture needle is used to produce a display of the puncture needle relative to a target vessel, including a projected path of the puncture needle that can be adjusted to accurately locate a shunt.08-26-2010
20110237937Method and Apparatus for Guiding an External Needle to an Implantable Device - A system to generate a navigation field relative to an implanted device is disclosed. The system can include a small and/or thin localizer array positioned in the implanted device. A power management scheme and circuits can be provided to conserve and resource power in the implanted device.09-29-2011
20120197111COMPENSATION FOR RESPIRATORY MOTION - A method, including: measuring first positions of a probe fixed at a first point in a body of a patient over at least a portion of a respiration cycle of the patient, and formulating respective indicators of a respiration state of the patient at the first positions. The method further includes generating a functional relationship between the first positions and the respective indicators and extracting parameters from the functional relationship. The method also includes moving the probe to a second point of the body, measuring second positions of the probe at the second point during a subsequent respiration cycle of the patient, and applying the parameters to the second positions so as to compensate for respiratory motion of the patient at the second point.08-02-2012
20120197109Method and Apparatus for Image-Based Navigation - A system and method for a procedure that can be performed on any appropriate subject. Procedures can include assembling any appropriate work piece or installing members into a work piece, such as an airframe, autoframe, etc. Regardless of the subject, tracking a substantially small tracking device in a plurality of degrees of freedom is provided. The tracking device can be positioned on or be formed in an instrument to be tracked.08-02-2012
20100168560Devices and Methods for Catheter Localization - A medical device can be localized by providing at least three non-colinear localization elements (e.g., electrodes) thereon. Once placed in a non-ionizing localization field, three adjacent localization elements, at least one of which will typically be a spot electrode, may be selected, and the non-ionizing localization field may be used to measure their locations. A cylinder is defined to fit the measured locations of the selected localization elements. The cylinder is rotationally oriented using the measured location of a spot electrode. Location and rotational attitude information may be used to construct a three-dimensional representation of the medical device within the localization field. The electrodes may be provided on the medical device or on a sheath into which the medical device is inserted. The invention also provides systems and methods for identifying and calibrating deflection planes where the medical device and/or sheath are deflectable.07-01-2010
20100152574Coupler assembly for catheters - Coupler assemblies and methods are disclosed as the coupler assemblies may be used with a catheter. An exemplary coupler assembly includes a spherical linkage coupler for a catheter. The coupler comprises a first cylinder portion for connecting to a structure, and a second cylinder portion for connecting to a distal end of a body of the catheter. The coupler also comprises a spherical linkage including at least two link arms. Each of the two link arms are connected on one end to the first cylinder portion and on the other end to the second cylinder portion. The two link arms connect a portion of the structure to the distal end of the catheter and enable the structure to move relative to the distal end of the catheter in response to an external force exerted on the structure.06-17-2010
20100152573SYSTEMS AND METHODS FOR IDENTIFYING LANDMARKS ON ORTHOPEDIC IMPLANTS06-17-2010
20120130228Medical Device Location Systems, Devices and Methods - Methods, devices and systems for one or both of two- or three-dimensional location of the disposition of a sensor coil in a subject including: an array of electromagnetic drive coil sets, each set having two or three dimensionally oriented drive coils; a sensor coil being electromagnetically communicative with the array of electromagnetic drive coil sets; and, a system controller communicative with and adapted to energize one or more of the electromagnetic coils in the array of electromagnetic drive coil sets, the energizing of the one or more of the electromagnetic coils including one or more of energizing the coils singly, or in pairs of x-y and y-z or x-z coils, or in triplets of x-y-z coils while measuring the response of the sensor coil; whereby the system uses the measurements of the responses of the sensor coil to calculate the location and orientation of the sensor coil relative to said drive coil sets.05-24-2012
20080262341Active blood vessel sleeve methods and systems - Methods, apparatuses, computer program products, devices and systems are described that include accepting one or more blood vessel sleeve dimensions based on blood vessel data from an individual; and making a rapid-prototyped blood vessel sleeve at least partly based on the one or more blood vessel sleeve dimensions.10-23-2008
20090076379Ultrasonic Imager for Motion Measurement in Multi-Modality Emission Imaging - A medical imaging device has an emission tomograph, at least one ultrasonic (US) probe for providing images giving real-time information about the location of the internal organs of a subject, a tracking system for spatially locating the at least one ultrasonic probe in relation to the medical imaging device, and an image processing unit in which the location information obtained by the ultrasonic probe is used for attenuation correction of image information obtained by the emission tomograph.03-19-2009
20130218007TARGETING LANDMARKS OF ORTHOPAEDIC DEVICES - A device for targeting a landmark of an orthopaedic implant including a housing configured to engage a mating structure for attachment of the housing to the orthopaedic implant, and an electromagnetic sensor located at a known position within the housing, wherein, when the housing is engaged with the mating structure, the position of the sensor relative to a landmark of the orthopaedic implant is known for at least five degrees of freedom.08-22-2013
20100222671IDENTIFICATION AND PRESENTATION OF DEVICE-TO-VESSEL RELATIVE MOTION - Apparatus and methods are provided for use with a tool that is inserted into a portion of a body of a subject that undergoes cyclic motion. A plurality of native images of the tool inside the portion of the body are acquired, at respective phases of the cyclic motion. The native images are stabilized with respect to a feature of the portion of the body. In response to stabilizing the native images, an output is generated that is indicative of an extent of movement of the tool with respect to the portion of the body. Other embodiments are also described.09-02-2010
20100222670DEVICE FOR MEASURING AND METHOD FOR ANALYSING GASTROINTESTINAL MOTILITY - The invention relates to a device for measuring the intestinal motility, that comprises a solid marker intended for travelling along the entire digestive system of a living being, or a portion thereof, a detector including means for detecting the position and the orientation of the marker, means for measuring the intestinal motility connected to the detector, wherein the marker and the detector includes transmission means and reception means for transmitting and receiving electromagnetic signals that ensure a bi-directional communication between the marker and the detector. The invention also relates to the use of the above-mentioned device.09-02-2010
20100210939Method and Apparatus for Surgical Navigation - Disclosed is a surgical navigation system for tracking an instrument relative to a patient. The system can track a portion of the patient, an instrument, and/or both relative to image data, a coordinate system, an atlas, a morphed atlas, or combinations thereof. The system can include a tracking device on the instrument to provide six degree of freedom information regarding the location of the instrument.08-19-2010
20100210938Navigation System for Cardiac Therapies - An image guided navigation system for navigating a region of a patient includes an imaging device, a tracking device, a controller, and a display. The imaging device generates images of the region of a patient. The tracking device tracks the location of the instrument in a region of the patient. The controller superimposes an icon representative of the instrument onto the images generated from the imaging device based upon the location of the instrument. The display displays the image with the superimposed instrument. The images and a registration process may be synchronized to a physiological event. The controller may also provide and automatically identify an optimized site to navigate the instrument to.08-19-2010
20110028830DEVICE FOR GUIDING AN INVASIVE MEDICAL INSTRUMENT - The present invention relates to a device (02-03-2011
20120143047POSITION DETECTION APPARATUS AND MEDICAL-DEVICE-POSITION DETECTION SYSTEM - A position detection apparatus and a medical-device-position detection system that have improved position detection accuracy are provided by setting high amplification for the position detection apparatus. The position detection apparatus includes a circuit that has at least one embedded coil (06-07-2012
20120143050DISPOSABLE AND RADIOLUCENT REFERENCE ARRAY FOR OPTICAL TRACKING - A reference foil comprises an unsymmetric marker foil device which advantageously includes spatially separated pieces of a marker material foil in unsymmetric arrangement and/or at least one unsymmetric integral piece of the marker material foil. The reference foil and a carrier device for the same may be used for example in image-guided surgery.06-07-2012
20100063384LOCAL INTRA-BODY DELIVERY SYSTEM - A system for delivery of a capsule to a target location within a subject body including a capsule including a locomotion element and a gamma emitting radioactive source, a radiation tracking subsystem capable of locating the gamma emitting radioactive source in three dimensions, and a locomotion control subsystem capable of controlling movement of the capsule by effecting movement of the locomotion element, based, at least partly, on a location of the gamma emitting radioactive source provided by the radiation tracking subsystem. A method of measuring a velocity of flow of a fluid at a target location within a subject body including inserting a capsule including a locomotion element and a gamma emitting radioactive source into the body, using a radiation tracking subsystem to locate the gamma emitting radioactive source in three dimensions, moving the capsule to the target location within the body using a locomotion control subsystem which controls movement of the capsule by effecting movement of the locomotion element, based, at least partly, on location of the gamma emitting radioactive source provided by the radiation tracking subsystem, and measuring the velocity of flow of the fluid at the target location. Related apparatus and methods are also described.03-11-2010
20080287778IMAGING AND NAVIGATION SYSTEM - An imaging and navigation system is disclosed herein. The imaging and navigation system includes a computer and an ultrasonic imaging device disposed at least partially within an ultrasound catheter. The ultrasonic imaging device is connected to the computer and is adapted to obtain a generally real time three-dimensional image. The imaging and navigation system also includes a tracking system connected to the computer. The tracking system is adapted to estimate a position of a medical instrument. The imaging and navigation system also includes a display connected to the computer. The display is adapted to depict the generally real time three-dimensional image from the ultrasonic imaging device and to graphically convey the estimated position of the medical instrument.11-20-2008
20100198057X-Ray Discernable Marker for Power Injectable Vascular Access Port - An improved injection port for implantation within a patient having an x-ray discernable marker allowing for the determination of a pressure rating for the injection port when so implanted.08-05-2010
20100198058System and method for tagging and detecting surgical implements - A system and method for detecting a surgical implement retained within a surgically exposed human body cavity, includes a tag adapted to be attached to a surgical implement insertable within a human body cavity, including a means for receiving an electromagnetic signal and converting it into electric signal; and a means to impress said electric signal on the internal human (or an animal) body where said medical product is used; and means to transmit said electromagnetic signal; and a detecting means including reception means for receiving the electric signal from the body and a detector means connected to the reception means for detecting the electric signal. The envelope of the induced RF wave is demodulated, thus allowing the voltage at the output to vary at a significantly lower frequency. In the event such pulses are sensed, a sensory alert is actuated.08-05-2010
20120245456Adapter for Attaching Electromagnetic Image Guidance Components to a Medical Device - Devices and methods wherein an adapter is used to attach an electromagnetic image guidance component to a medical device such that an electromagnetic image guidance system may be used to track the location of the medical device within the body of a human or animal subject.09-27-2012
20090177080NONINVASIVE LOCKING OF DISTAL HOLES IN CANNULATED INTRAMEDULLARY NAILS IN SURGERY - A system and a method for facilitating a locking of distal holes in a cannulated intramedullary nail are disclosed. The system includes a transmitter, an internal guide, an extension, and schematic renderings of the distal holes and the extension. The transmitter is capable of representing an origin of a local coordinate system. The internal guide includes a first sensor and is capable of guiding the first sensor along the canal of the cannulated intramedullary nail to the distal holes. The first sensor is capable of transmitting a position and rotation of the internal guide relative to the origin. The extension includes a second sensor and is adapted to allow use of drilling and screwing tools. The second sensor is capable of transmitting a position and rotation of the extension relative to the origin. The schematic renderings of the distal holes and the extension facilitate their alignment along a common axis.07-09-2009
20090143671POSITION IDENTIFYING SYSTEM, POSITION IDENTIFYING METHOD, AND COMPUTER READABLE MEDIUM - Provided is a position identifying system with a simple configuration that can identify a position of an object inside a body. The position identifying system identifies a position of an object existing inside a body. The position identifying system includes a vibrating section that vibrates each of a plurality of different positions inside the body at a different timing; an image capturing section that captures a frame image of the object at each of the different timings; and a position identifying section that identifies the position of the object based on a blur amount of an image of the object in each frame image captured by the image capturing section.06-04-2009
20110130650NASOGASTRIC AND OROGASTRIC FEEDING DEVICES, SYSTEM COMPRISING THEM, METHODS AND USES THEREOF - The present invention relates to the field of medical devices. Specifically, the invention relates to an enteral feeding device comprising expandable means which prevents or significantly reduces aspirations from the alimentary tract to the respiratory system. In further aspects, the invention relates to systems comprising said enteral feeding device, methods and uses thereof.06-02-2011
20090112085PREOPERATIVE LOCALIZATION WIRE - The present invention discloses a novel preoperative localization wire. The localization wire comprises a J-shaped end; a branch point proximal to the J-shaped end, wherein a barb is attached to the wire at the branch point; and a locking device distal to the J-shaped end. The localization wire is resilient, allowing passage of the wire through a localization needle.04-30-2009
20120143045METHOD FOR IMAGE SUPPORT IN THE NAVIGATION OF A MEDICAL INSTRUMENT AND MEDICAL EXAMINATION DEVICE - A method for image support in a navigation of a medical instrument, in particular a catheter, in at least one hollow organ in a surgical site of a body is proposed. A presentation of a current position of the instrument in the hollow organ is generated from a three-dimensional dataset of the surgical site and the presentation data describes the current position of the instrument. At least one geometry parameter influencing the generation and/or display of the presentation is automatically adjusted taking into account position data of the instrument describing the current three-dimensional position and the current three-dimensional orientation of a tip of the instrument. The presentation corresponding to the geometry parameters is displayed.06-07-2012
20130131503TRACKING A GUIDEWIRE - In one aspect, in general, a method includes receiving, at a computer system, data from an electromagnetic sensor, determining, at the computer system, based on the received data, a location of a tip of a guidewire inserted in a patient, and causing, by the computer system, an indication of the determined location of the tip of the guidewire to be displayed in an overlay image representing at least part of the guidewire.05-23-2013
20100312100METHOD AND APPARATUS FOR GUIDING A DEVICE IN A TOTALLY OCCLUDED OR PARTLY OCCLUDED TUBULAR ORGAN - An apparatus and method for detecting, tracking and registering a device (12-09-2010
20090069672Device localization and guidance - An apparatus and method is described for determining the location of a object inside a patient. Three dimensional image data of the patient is obtained by an imaging modality such as a C-arm X-ray device. The same or another imaging modality may be used to obtain projection radiographic images, having a coordinate system that can be registered with respect to that of the three dimensional image. The location of one or more features of a medical treatment device such as a needle or a catheter introduced into the imaging filed of view is determined either by an operator or by image analysis, in at least two projection radiographic images, and the position of the feature located in the three-dimensional volume. The projection on a radiographic image of a vector joining a first and a second position is used to assist in guiding the medical treatment device inside of the patient.03-12-2009
20090069671Electric Motor Tracking System and Method - Provided is a tracking system, including a motor coupled to a medical instrument and configured to generate at least one magnetic field, and at least one receiver coil configured to sense the magnetic field. Also provided is a method of tracking, including rotating a rotor of a motor, wherein the rotor comprises a permanent magnet that generates a rotating magnetic field when the rotor is rotated, sensing the rotating magnetic field with at least one receiver, transmitting to a processor a signal indicative of the rotating magnetic field, and processing the signal to determine a position of the motor. Further provided is a method of tracking, comprising energizing a stator coil of a motor to generate at least one magnetic field, sensing the at least one magnetic field with at least one receiver, transmitting to a processor a signal indicative of the at least one magnetic field, and processing the signal to determine a position of the motor.03-12-2009
20110112396SYSTEM AND METHOD FOR TARGETING CATHETER ELECTRODES - A system and method is described for a catheter guidance system which allows an operator to use a mapping catheter to specify tissue target locations for the automatic guidance of a second therapeutic catheter. The operator places a mapping catheter at a desired location, and commands the catheter guidance system by either selecting a point on that catheter or one of the catheter electrode electrocardiograms. The operator may target the selected dynamic location, or tissue contact beyond that location on a specific side of the mapping catheter.05-12-2011
20110112397IN VIVO SENSOR FOR DETECTING BONE SURFACE - A device and a method are described for finding the location of a bone surface in patients or living animals by using a thin probe equipped with bone contacting detection functionality for a minimally invasive procedure.05-12-2011
20110112398APPARATUS AND METHOD FOR LOCATING A DEVICE TIP WITHIN A VOLUME - A method for determining by an x-ray projection a position of a target radiopaque marker disposed on a catheter in a subject's body, comprising assigning a landmark in the body as a reference point compensated for periodic movements of the body, determining an auxiliary location relative to the reference point using at least one additional radiopaque marker disposed on the catheter and based on the auxiliary location determining the position of the target radiopaque marker with respect to the reference point.05-12-2011
20130137973DEVICE AND METHOD FOR DETERMINING THE APERTURE ANGLE OF A JOINT - A device for determining the aperture angle of a joint includes a detection device for detecting positions of joint components and/or positions of structures connected to or to be connected to the joint and a computational unit for ascertaining the aperture angle of the joint based on the detected positions.05-30-2013
20130137974X-RAY IMAGING APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS AND X-RAY IMAGING METHOD - According to one embodiment, an X-ray imaging apparatus includes an angle acquisition unit and an imaging unit. The angle acquisition unit is configured to acquire an inclined angle of an aorta of an object on a reference image. The imaging unit is configured to display an X-ray image with rotating an angle so as to make a travel direction of the aorta to be a horizontal direction, a vertical direction or a predetermined direction corresponding to a craft. The angle is rotated based on the inclined angle of the aorta.05-30-2013
20090036769SPREAD SPECTRUM ELECTRIC TOMOGRAPHY - Methods for locating a sensor element in vivo, e.g., during evaluation of tissue motion, such as of a cardiac tissue motion, e.g., heart wall motion, via electric tomography are provided. In the subject methods, an electric field is applied to a subject in a manner such that the sensing element is present in the applied electric field, and a property of, e.g., a change in, the applied electric field sensed by the sensing element is employed to evaluate a patient internal parameter of interest, e.g., to evaluate movement of tissue location, to evaluate a internal device parameter, such as movement thereof, etc. The invention allows for robust noise discrimination, e.g., by employing a spread spectrum applied electric field. Also provided are systems and devices for practicing the subject methods. In addition, innovative data displays and systems for producing the same are provided. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.02-05-2009
20100331671Method and System for Navigating a Catheter Probe in the Presence of Field-Influencing Objects - A system for and method of determining and compensating for the effect of a field influencing object on a field sensor, preferably a coil, that is within a navigational domain. The navigational domain contains navigational magnetic energy and disturbing magnetic energy, and the field influencing object produces the disturbing magnetic energy in response to the navigational magnetic energy. The correction system includes a first transmitter for projecting into the navigational domain field energy in a first waveform sufficient to induce a first signal value in the sensing coil. The system also includes a second transmitter for projecting into the navigational domain field energy in a second waveform sufficient to induce a second signal value in the sensing coil. The system further includes a signal processor for receiving the first signal value and for receiving the second signal value to determine the effect of the electrically conductive object on the field sensor. In other embodiments, the correction system may utilize a second sensing coil to receive and process an alternate aspect of the field energy from a position that is different from the first field sensor, or the system may utilize a storage device that contains information relating to the effect of the field influencing device within the navigational domain.12-30-2010
20100331670AUTOMATIC GUIDEWIRE MANEUVERING SYSTEM AND METHOD - System for guiding a catheter through a lumen system of a body of a patient, to a predetermined location within the lumen system, the system including a medical positioning system, a moving mechanism coupled with the catheter, and a controller coupled with the medical positioning system and with the moving mechanism, the medical positioning system including at least one position detector, the position detector being firmly attached to a distal portion of the catheter, the medical positioning system determining the position of the position detector, the controller controlling the operation of the moving mechanism to move the catheter to the predetermined location, according to the position and according to a topological representation of at least a portion of the lumen system.12-30-2010
20100331668Biopsy Tissue Marker - A biopsy site marker is disclosed. The biopsy site marker includes a first marker element and a second marker element. The first marker element is configured for detection by a first imaging modality. The second marker element is configured for detection by a second imaging modality different from the first imaging modality. The second marker element may be a non-absorbable wire having a predetermined shape and is substantially engaged with the first marker element.12-30-2010
20110009740SYSTEM AND METHOD FOR NAVIGATING AN ULTRASOUND CATHETER TO IMAGE A BEATING HEART - Catheter navigation is coupled with ultrasound imaging to yield a context map showing the location on a heart of the ultrasonically imaged frame.01-13-2011
20110046477Vascular access methods and devices - Methods and devices for detecting positioning of a probe in a tissue of a patient. A method can include providing a detection device; advancing a device coupled probe through the tissue of the patient and toward the patient's target tissue; detecting a change in pressure about the distal portion of the coupled probe during advancing, where the detected pressure change indicates probe positioning in a vein or artery of the patient; outputting the detected pressure change or indication of probe positioning to a visual display.02-24-2011
20110245659SYSTEMS AND METHODS TO ASSIST WITH INTERNAL POSITIONING OF INSTRUMENTS - Systems and methods which facilitate the correct placement of an instrument internal to an object aided by an overlay superimposed on an image are disclosed. Exemplary embodiments facilitate placement of a needle tip within a patient's body using on overlay superimposed on a sonographic image. A superimposed overlay of embodiments is created by monitoring a fixed point of an external portion of the instrument in relation to an imaging transducer. Superimposed overlays provided according to embodiments provide one or more graphical target designator and one or more graphical instrument designator which, when controlled to be disposed in a predetermined position, indicate proper placement of the instrument.10-06-2011
20100168556SYSTEM FOR LOCAL ERROR COMPENSATION IN ELECTROMAGNETIC TRACKING SYSTEMS - A system for local metal distortion correction for using an accurate electromagnetic tracking system in a medical environment is disclosed containing an electromagnetic field generator monitoring a medical device having a suitable sensor coil wherein a correction function, derived from an error correction tool, is applied to the position and orientation readings of the sensor coil. The error correction tool consists of a number of electromagnetic sensors arranged in a fixed and known geometric configuration and is placed surrounding the site of the medical procedure. Sensor data is displayed on an imaging system. In addition, a distortion mapping can be done utilizing optical sensors for relative positioning readings along with an electromagnetic tracking system sensor.07-01-2010
20110087091METHOD AND APPARATUS FOR COLLECTION OF CARDIAC GEOMETRY BASED ON OPTICAL OR MAGNETIC TRACKING - A cardiac imaging system including an imaging module including an ultrasound emitter and one or more position markers. A tracking and control system may include a position sensing system for sensing a location and orientation of the position marker relative to a predetermined reference. The tracking and control system may be operable with the imaging module to produce at least a three dimensional image of a patient's anatomy. A method of cardiac imaging may include operatively attaching one or more position markers to an imaging module including an ultrasound emitter. The method may further include sensing a location and orientation of the position marker relative to a predetermined reference, and producing at least a three dimensional image of a patient's anatomy by evaluating one or more images obtained by the imaging module and aligning the image(s) obtained by the imaging module relative to the location and orientation of the position marker.04-14-2011
20110125006SURGERY ASSISTANCE SYSTEM - Even when the optical axis is offset in a rigid endoscope, the actual optical axis position is measured in advance, and surgery navigation can be performed by using the actual optical axis position.05-26-2011
20110213241Laparoscopic Port with Microwave Rectifier - A radiation detector disposed on a microwave antenna assembly to receive unintended field exposure in an insufflated abdomen. The radiation detector includes a receiving antenna made up of at least two pieces of metal externally attached to the microwave antenna within the abdomen. The radiation detector is adapted to receive errant microwave energy that resonates in the abdomen. A rectifier is coupled between the two pieces of metal, where the pieces of metal are strips, rings, patches, or other geometric combinations. The rectifier is adapted to rectify at least a portion of the errant microwave energy. A filter is coupled to the rectifier and is adapted to convert the rectified microwave energy into a detection signal. An inflatable stop is located on a distal end of the microwave antenna and the inflatable stop is inflated when inserted within the abdomen. The inflated stop prevents inadvertent removal of the microwave antenna.09-01-2011
20110213240MODEL-BASED CORRECTION OF POSITION MEASUREMENTS - Visualization of a probe when impedance-based measurement technology is being used is improved by stabilizing a displayed image of the probe or catheter. Using a model of reasonable probe shapes and a matching algorithm, an erroneous probe image is adjusted so that it assumes a realistic shape on a display. A range of positional variations is also incorporated in the model. When an apparent probe position exceeds a permissible range of motion, the probe image is constrained to a realistic position.09-01-2011
20110130649METHOD AND SYSTEM FOR REGISTERING A MEDICAL SITUATION ASSOCIATED WITH A FIRST COORDINATE SYSTEM, IN A SECOND COORDINATE SYSTEM USING AN MPS SYSTEM - System for registering a first image with a second image, the system including a first medical positioning system for detecting a first position and orientation of the body of a patient, a second medical positioning system for detecting a second position and orientation of the body, and a registering module coupled with a second imager and with the second medical positioning system, the first medical positioning system being associated with and coupled with a first imager, the first imager acquiring the first image from the body, the first imager producing the first image by associating the first image with the first position and orientation, the second medical positioning system being associated with and coupled with the second imager, the second imager acquiring the second image and associating the second image with the second position and orientation, the registering module registering the first image with the second image, according to the first position and orientation and the second position and orientation.06-02-2011
20110082365LATERALLY FENESTRATED CANNULA - A cannula provides access to a surgical site for a camera instrument and one or more minimally invasive surgical instruments. The cannula may include a curved or flexible section when used with flexible surgical instruments. A service port is defined in a sidewall between proximal and distal ends of the cannula, the service port being large enough to allow an object to be transferred between the instruments and a location outside the cannula. An end effector of the surgical instrument may be positioned within the cannula adjacent the service port. The camera instrument may be positioned to place the end effector within a field of view of the camera. An object may be transferred between a service instrument and the surgical instrument within the field of view of the camera.04-07-2011
20110087092Interchangeable Localizing Devices For Use With Tracking Systems - A system for tracking the position of an instrument relative to an area of interest includes a first fixator configured to carry first and second localizing devices. A second fixator is configured to carry the first localizing device. A third localizing device communicates with the first localizing device and the second localizing device communicates with the first localizing device such that the position of the second localizing device can be determined relative to the position of the third localizing device. The second localizing device is attachable to the instrument and the first localizing device is attachable to the first fixator such that the first localizing device communicates with the second localizing device on the instrument in order that the position of the second localizing device on the instrument can be determined relative to the third localizing device.04-14-2011
20110245660PROJECTION IMAGE GENERATION APPARATUS AND METHOD, AND COMPUTER READABLE RECORDING MEDIUM ON WHICH IS RECORDED PROGRAM FOR THE SAME - When generating a projection image which is an image formed of image information on a plurality of visual lines viewing a first structure in a three-dimensional medical image from a given viewpoint being projected on a given projection plane, setting an assumed position of a treatment tool in the three-dimensional image, detecting a surface of the first structure from the three-dimensional medical image, identifying a second structure in the three-dimensional medical image located at a position masked by the first structure, detecting an intersection point between an assumed path formed when the treatment tool is moved from the assumed position towards the second structure and the surface of the first structure, and displaying the intersection point in an identifiable manner at a position to which image information on a visual line connecting the viewpoint and the intersection point is projected.10-06-2011
20110245661MEDICAL DEVICE - A medical device includes a curving motion driver curving a treatment portion, a rolling motion driver rolling the treatment portion in a direction around an axis, an instruction input unit inputting an instruction to move the treatment portion to a desired position, and a position/posture detector which detects a position and a posture of the treatment portion when the instruction is input from the instruction input unit. The medical device includes a driving information calculator which calculates driving information of the curving motion driver and the rolling motion driver during the movement of the treatment portion to the desired position on the basis of the detected position and posture of the treatment portion and on the basis of the input in the instruction input unit, and a control unit which drives and controls the curving motion driver and the rolling motion driver in accordance with the calculated driving information.10-06-2011
20090048509SHIELDED SURGICAL NAVIGATION SYSTEM THAT DETERMINES THE POSITION AND ORIENTATION OF THE TRACKED OBJECT WITH REAL AND VIRTUAL DIPOLES - A system for determining the position and orientation of a tracked object by measuring electromagnetic energy. The system includes a shield of magnetic permeable material positioned on one side of the object to be tracked. A transmitter emits the electromagnetic energy and there is a tracker sensor. One of the transmitter or tracker sensor is attached to the object to be tracked. A correction sensor is at fixed location relative to the transmitter assembly. Both sensors assemblies measure the electromagnetic energy emitted by the transmitter. Based on the energy measured by the correction sensor, the location of a virtual dipole that mirrors the transmitter, the real dipole, on the opposite side of the shield is determined. Based on the positions of the real and virtual dipoles and the energy measured by the tracker sensor, the position and orientation of the tracker sensor relative to the transmitter is determined.02-19-2009
20100063385METHOD AND APPARATUS FOR MAGNETICALLY CONTROLLING CATHETERS IN BODY LUMENS AND CAVITIES - A method of navigating a magnet-tipped distal end of an elongate medical device through the body includes providing an image display of the part of the body through which the medical device is being navigated and using the display to input the desired path of the medical device by identifying points on the desired path on the display. The magnetic field needed to orient the end of the medical device in the direction of the desired path as indicated on the display is then determined. In one embodiment where only points on the desired path are identified, the field direction is the direction indicated by the points on the desired path. In a second embodiment, where points on the current path and the desired path are identified, the desired angle of deflection is determined, and the direction of the magnetic field is set to lead this desired angle of deflection by 90° to over-torque the end of the catheter, and the intensity of the field is determined from a table of experimentally determined field intensities for given angles of deflection.03-11-2010
20120245457Ultrasound imaging catheters and guidewires with non-interfering and coordinated position and orientation sensors - An ultrasonic imaging catheter and guidewire system for acoustic imaging and electromagnetic positioning, with low noise, is described. An ultrasonic imaging guidewire uses two opposed imaging transducers laterally disposed near the distal end of an interventional guidewire. The tortuous position of the guidewire in the vasculature is monitored by a proximally positioned perpendicular position and orientation coil. Accurate vascular imaging is afforded by the use of opposed transducers operating alternately, thereby providing an accurate total distance measurement on each side of the guidewire regardless of the position of the guidewire in the lumen.09-27-2012
20100069742Systems and Methods for Tracking and Targeting Object in a Patient Using Imaging Techniques - A method for use in a medical procedure includes obtaining a contrast-enhanced image of a portion of a patient, the portion of the patient having an object, obtaining a non-contrast-enhanced image of the portion, wherein the contrast-enhanced image and the non-contrast-enhanced image are created at different times, and determining a position of the object using the contrast-enhanced image and the non-contrast-enhanced image. A method for use in a medical procedure includes obtaining a contrast-enhanced image of a portion of a patient, the portion of the patient having an object, obtaining a non-contrast-enhanced image of the portion, and determining a position of the object using the contrast-enhanced image and the non-contrast-enhanced image, wherein the act of determining the position is performed is substantially real time.03-18-2010
20120172717DEFLECTABLE MEDICAL DEVICES AND METHODS OF MANUFACTURING THEREFOR - Medical devices, methods of manufacturing medical devices, and systems comprising medical devices are provided. The medical device comprises a shaft having a proximal end, a distal end, and a major lumen disposed therein extending between the proximal end and the distal end. The major lumen is configured to receive a second medical device therein. The shaft comprises an inner liner, a generally planar element wrapped in a spiral pattern about the outer surface of the inner liner, and an outer layer. The generally planar element has a longitudinal axis and a plurality of longitudinally extending ribs and comprises a polymeric material.07-05-2012
20120172712RESPIRATORY EFFECT REDUCTION IN CATHETER POSITION SENSING - A method, including positioning body-electrodes in galvanic contact with a body of a patient and locating a probe in the body of the patient. The method further includes tracking positions of the probe during respiration of the patient and determining indications related to impedances between the body-electrodes during the respiration. The method also includes calculating a function relating the positions of the probe to the indications, and applying the function to identify end-expirium points of the respiration based on subsequent indications related to the impedances.07-05-2012
20110178394SYSTEM AND METHOD FOR POINT-BASED RIGID REGISTRATION WITH ANISOTROPIC WEIGHTING - Systems and methods for performing computer-assisted procedures are provided. In the systems and methods, a current rigid transformation is applied to a first set of points with respect to a second set of poi s to obtain a current transformed set of points. Thereafter, a linearized transformation is determined that minimizes a weighted fiducial registration error between the current transformed set and the second set. An updated rigid transformation is then obtained based on the current rigid transformation, the translation vector of the linearized transformation, and a rotation matrix that is closest to the linearized matrix of the linearized transformation, followed by applying the updated rigid transformation to the first set to obtain an updated transformed set of points. Finally, if motion associated with such updating fails to meet some criterion, the determining, obtaining, and applying are iteratively repeated using the updated rigid transformation and the updated transformed set.07-21-2011
20090216113Apparatus and Methods for Using an Electromagnetic Transponder in Orthopedic Procedures - Electromagnetic transponders as markers are used to localize and guide orthopedic procedures including: knee replacement, hip replacement, shoulder replacement, damaged bone reconstruction, and spine surgery, and more particularly, to guide orthopedic surgical navigation and alignment techniques and instruments. For example, the marker could further be used in any number of guides or templates that attach to the bony anatomy, such as a surgical guide, cutting guide, cutting jig, resection block and/or resurfacing guide. Further, the marker could be incorporated into an existing intramedullary guide rod for a femur and an extramedullary guide rod for a tibia in a knee replacement surgery; or into an external surgical guide system, or the marker could eliminate the need for an external template altogether. According to yet another anticipated use of the tracking system, the marker could be used in conjunction with or replace an optical alignment system.08-27-2009
20090216112Method and apparatus for positioning a biventrivular pacemaker lead and electrode - An apparatus and method for placing a device in a body area of a patient, by: tracking the device over a 3-dimensional model of the body area; activating the device at different locations in the body area; measuring the response signal or parameter caused by the activation; storing the locations as well as the response signals; choosing an optimal location for the device base in the stored response signals and navigating the device to the optimal location.08-27-2009
20090216111PROCESSING OF IMAGES OF INTERVENTIONAL INSTRUMENTS WITH MARKERS - The invention relates to a method and an image processing system (08-27-2009
20100130853SYSTEM FOR TRACKING OBJECT - In one embodiment, a tracking system for tracking an object positioned inside the body of a patient is provided. The tracking system comprises a reference sensor, the reference sensor comprising at least one of a transmitter, a receiver and a transceiver, a first tracker sensor coupled to a first object, a second tracker sensor coupled to a second object and tracker electronics coupled to the reference sensor and each of the tracker sensors. The tracker electronics is configured to determine position and orientation of each of the tracker sensors relative to the reference sensor based on the relationship between the reference sensor and each of the tracker sensors. Further, each of the tracker sensors is one of a transmitter, a receiver and a transceiver.05-27-2010
20100130852NAVIGATION ENABLED LEAD DELIVERY CATHETER - A catheter system for positioning of a medical instrument that includes a first elongate member having a first lumen. The catheter system also includes a second elongate member that includes a second lumen that receives the medical instrument. The second elongate member is coupled directly to the first elongate member, and the second elongate member is operable to be at least partially segmented generally along a second longitudinal axis thereof to allow movement of the medical instrument outside the second lumen. The second elongate member is selectively collapsible and expandable to change a size of the second lumen.05-27-2010
20100130851STYLET FOR USE WITH IMAGE GUIDED SYSTEMS - A stylet for an image guided system, which includes a locating device and which is operable for emitting an electromagnetic field for locating the stylet. The stylet includes a flexible elongate member, an electrically conductive member, and a reinforcement member. The reinforcement member is disposed inside the electrically conductive member and is made out of a magnetic material. The reinforcement member reinforces the stylet and provides electrical communication between the conductive member and the locating device such that current induced in the conductive member is transmitted to the locating device via the reinforcement member.05-27-2010
20100056905SYSTEM AND METHOD FOR TRACKING MEDICAL DEVICE - In one embodiment, a method for electromagnetic tracking is provided. The method comprises mounting at least one receiver coil array on each of a plurality of primary distortion sources, selecting one of the primary distortion source as a secondary distortion source, acquiring mutual inductance signals between a transmitter coil array and the secondary distortion source, the transmitter coil array being rigidly attached to a surgical tool, acquiring mutual inductance signals between the transmitter coil array and at least one primary distortion source, estimating an initial position for the surgical tool in the presence of the primary distortion source and the secondary distortion source, refining the estimated position of the surgical tool and estimating an orientation of the surgical tool.03-04-2010
20100069743SYSTEMS AND METHODS FOR IDENTIFYING AN ACCESS PORT - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is engraved or otherwise defined by the access port, so as to be visible after implantation via x-ray imaging technology.03-18-2010
20110251483IMAGE ANNOTATION IN IMAGE-GUIDED MEDICAL PROCEDURES - Presented herein are methods, systems, devices, and computer-readable media for image annotation in image-guided medical procedures. Some embodiments herein allow physicians or other operators to use one or more medical devices in order to define annotations in 3D space. These annotations may later be displayed to the physician or operator in 3D space in the position in which they were first drawn or otherwise generated. In some embodiments, the operator may use various available medical devices, such as needles, scalpels, or even a finger in order to define the annotation. Embodiments herein may allow an operator to more conveniently and efficiently annotate visualizable medical data.10-13-2011
20110251482DEVICES, SYSTEMS AND METHODS FOR ENHANCED VISUALIZATION OF THE ANATOMY OF A PATIENT - Devices, systems and methods are described for visualizing the anatomy of a patient. An expanding portion is configured to expand towards the tissue walls of a body space and be visible with one or more visualization instruments. Systems and methods are described which advance a probe from a first vessel toward a target in a second vessel.10-13-2011
20100240987COMPOSITE OPHTHALMIC MICROCANNULA - Microcannulae are constructed with multiple components in a composite design, allowing the microcannulae to have varying mechanical and delivery properties that will enable ophthalmic treatments by minimally invasive means. The microcannula includes at least one flexible, tubular communicating element with an outer diameter of 350 microns or less, a proximal connector for introduction of materials, energy or tools. It may also include a reinforcing member attached to the communicating element, which may be designed to create variable stiffness along the length of the microcannula. The microcannula may also include other features such as a signal beacon near the distal tip.09-23-2010
20110071385METHOD AND SYSTEM FOR LOCALIZING AN INGESTIBLE ELEMENT FOR THE FUNCTIONAL INVESTIGATION OF THE DIGESTIVE TRACT - A non-invasive exploration method for assessing the digestive motility of a subject including the subject swallowing an ingestible transmitting element containing a transmission means transmitting at a given fixed frequency, measuring in series the phase-shift of the frequency transmitted by each of at least three transportable reception means relative to a reference phase of a reference beacon to fix the origin of a coordinates system and the coordinates of each transportable reception means. Each of the reception means including a transceiver where the reception means is distributed around the subject and the reference beacon is attached to a given fixed location on the subject. The method includes measuring the phase shift of the frequency transmitted by the transmission means of the ingestible element to obtain at least three phase-shift measurements and determining by triangulation based on the phase-shift measurements a position of the ingestible element in the coordinates system.03-24-2011
20110071387MEDICAL IMPLANT DEVICE AND PROBE DEVICE HAVING UP AND/OR DOWN CONVERSION MOLECULES AND METHOD OF MAKING THE SAME - A medical device includes a device core and fluorescing molecules attached to the device core. The medical device may be formed in a variety of ways, including providing a medical device and coating at least a portion of the device with a polymer containing the fluorescing molecules, attaching a container containing the fluorescing molecules to a medical device, or molding a medical device from a polymer that includes the fluorescing molecules.03-24-2011
20110077508Trajectory Storage Apparatus And Method For Surgical Navigation Systems - A method and apparatus for determining, calculating, and/or viewing a trajectory. The trajectory can be displayed on a display relative to image data of a patient. A user can use the system to determine relationships between two or more trajectories that have been determined. The relationships can be within two dimensional, three-dimensional, or four dimensional space. The relationships can include distance, angle, etc. The relationships can also be determined between real time trajectories and stored trajectories, or combinations thereof.03-31-2011
20110077509MEASURING DEVICE AND A METHOD FOR DETERMINING TISSUE PARAMETERS - A measuring device provides a control device, a test-signal transmitter, a test-signal receiver and a test probe. The test probe contains at least one coaxial line. The control device controls the test-signal transmitter in such a manner that it transmits a test signal by means of the coaxial line into a given location of the tissue. The test signal is scattered by the tissue. The control device controls the test-signal receiver in such a manner that it receives the scattered test signal. The control device evaluates the received test signal. The test probe is designed in such a manner that a tissue specimen can be removed by it at the given location of the tissue.03-31-2011
20110060214Systems and Methods for Performing Image Guided Procedures Within the Ear, Nose, Throat and Paranasal Sinuses - Devices, systems and methods for performing image guided interventional and surgical procedures, including various procedures to treat sinusitis and other disorders of the paranasal sinuses, ears, nose or throat.03-10-2011
20110071386ECHOGENIC NEEDLE MECHANISM - A medical device comprises a cannula for insertion to a target location in a body and at least one resonator situated on a surface of the cannula. The resonator resonates in response to an ultrasonic frequency applied to the target location to indicate the location of the cannula in the body. The ultrasonic frequency is generated by a transducer located external to the body. The medical device also comprises a device converting resonated frequencies into an image.03-24-2011
20120203101METHODS FOR OPTOACOUSTIC GUIDANCE AND CONFIRMATION OF PLACEMENT OF NOVEL INDWELLING MEDICAL APPARATUS - Indwelling medical apparatus including one optoacoustic discernible member or a plurality of optoacoustic discernible members and methods for optoacoustic guidance and confirmation of placement of optoacoustically discernible indwelling medical apparatus.08-09-2012
20110034802SYSTEMS, METHODS, AND APPARATUS FOR IMAGING AN IMPLANTABLE DEVICE AND METHODS FOR MANUFACTURING - A method for imaging an implantable device is described. The method may include positioning an implantable device within a patient. Ultrasonic energy may be transmitted toward the implantable device. The returning ultrasonic energy may be analyzed to determine a first characteristic of the implantable device. A method for manufacturing an implantable device is also described. The method may include selecting a first size dimension for a plurality of ultrasonically visible portions. The method may further include selecting a first spacing dimension for the plurality of ultrasonically visible portions. An implantable device may be formed. The plurality of ultrasonically visible portions may be formed into the first outer surface. An implantable device is also described. The implantable device may include a first outer surface. The first outer surface may include a first ultrasonically visible portion having a first size dimension.02-10-2011
20110009739TRANSCRANIAL ULTRASOUND TRANSDUCER WITH STEREOTACTIC CONDUIT FOR PLACEMENT OF VENTRICULAR CATHETER - An apparatus, system and method for performing a ventriculostomy using an ultrasound probe is disclosed. A head portion of the probe is connected to a handle portion at a proximal end of the head portion. A transducer is mounted in a distal end of the head portion to transmit ultrasound waves into the patient. The head portion includes a conduit portion arranged to accept and to accurately direct a catheter into the body of the patient in a direction parallel to the direction of the ultrasound waves. The head portion is sized to fit into a conventionally-sized craniotomy. An adjustment mechanism connects the head portion to the handle portion for selectively adjusting the angle between the handle portion and the head portion. A sterile sheath having an integral conduit assembly for mounting to the head is optionally provided. An illuminator is optionally provided on the probe.01-13-2011
20120302878SYSTEM AND METHOD FOR TUMOR MOTION SIMULATION AND MOTION COMPENSATION USING TRACKED BRONCHOSCOPY - A system and method for accounting for motion of a target in a medical procedure includes an endoscope (11-29-2012
20120302876OBJECT LOCALIZATION APPARATUS - The invention relates to an object localization apparatus for localizing an object having markers based on a projection image. An object function (11-29-2012
20120302875SYSTEM AND METHOD FOR INSERTING INTRACRANIAL CATHETERS - An improved system for safely and accurately placing intracranial catheters by using techniques from the field of artificial intelligence (AI) which combine the output from in vivo ultrasonic sensors with in vivo video cameras and an embedded inertial measurement unit. The AI subsystem synthesis the output from the three sensors to determine an optimal route to the desired intracranial site while avoiding larger blood vessels en route. Additionally, by using the output from the inertial measurement unit, the catheter's complete trajectory can be recorded and made available for post-operative analysis. The entire system is portable so that it can be used outside of the hospital operating room, for example, in an intensive care unit. Compared to standard freehand methods of placing intracranial catheters, the system embodied here will reduce concomitant hemorrhaging while increasing the accuracy of catheter placement.11-29-2012
20120302874NON-INVASIVE IMPLANT RUPTURE DETECTION SYSTEM - Devices and methods for non-invasive implant rupture detection are described herein. Some variations of a non-invasive implant rupture detection device comprise a single optical waveguide, such as a silicone fiber, embedded in the shell of the implantable device where one end of the optical waveguide is optically connected to a photo emitter through a lens and the other end of the waveguide is optically connected to photo detector. An optical signal successfully transmitted from the photo emitter through an intact optical waveguide to the photo detector indicates that the implant shell is intact, while an optical signal that is transmitted by the photo emitter, but not detected by the photo detector, indicates that there is a discontinuity or rupture in the shell. The status of the implant shell is wirelessly communicated to an external reader and provided to a patient and/or a practitioner.11-29-2012
20090024024Venous Access Port Assembly with X-Ray Discernable Indicia - A venous access port assembly (01-22-2009
20120302873IMAGE PROCESSING DEVICE, RADIOGRAPHIC IMAGE CAPTURE SYSTEM, IMAGE PROCESSING METHOD AND IMAGE PROCESSING PROGRAM STORAGE MEDIUM - An image processing device includes an image generation section that generates plural tomographic images; a first specification section that displays at least one tomographic image in which an object of interest has been captured, and that allows a user to specify a position of the object of interest; a second specification section that displays at least one tomographic image including a region from the object of interest to a side from which a biopsy needle is to be inserted, and allows the user to specify a desired pass-through region of the biopsy needle and/or a non-pass-through region; a detection section that detects a path of the biopsy needle passing through the pass-through region and reaching the object of interest; and a warning section for issuing a warning if the detected path is outside a predetermined movement range of the biopsy needle.11-29-2012
20120277577BODY CAVITY ULTRASONIC PROBE AND ULTRASONIC DIAGNOSIS APPARATUS - A body cavity probe which scans an object with ultrasonic waves includes a probe main body, and a linear array constituted by a plurality of piezoelectric elements and a convex array constituted by a plurality of piezoelectric elements, which are provided in the probe main body to transmit ultrasonic waves to the object and receive an echo signal from the object. The linear array and the convex array have different array shapes. The respective array surfaces are included in the same plane.11-01-2012
20080221440Imaging and tools for use with moving organs - Apparatus is described for use with a portion of a subject's body that moves as a result of cyclic activity of a body system. An imaging device acquires a plurality of image frames of the portion. A sensor senses a phase of the cyclic activity. A medical tool performs a function with respect to the portion. A control unit generates a stabilized set of image frames of the medical tool disposed within the portion, actuates the tool to perform the function or move, in response to the sensor sensing that the cyclic activity is at a given phase thereof, and inhibits the tool from performing the action or moving in response to the sensor sensing that the cyclic activity is not at the given phase. A display facilitates use of the tool by displaying the stabilized set of image frames. Other embodiments are also described.09-11-2008
20080221439Tools for use with moving organs - A sensor senses a phase of cyclic activity of a portion of a subject's body. A control unit, in a first cycle of the cyclic activity, moves a portion of a tool, in a given direction, in response to the sensor sensing that the cyclic activity is at a first given phase thereof. The control unit, following the given phase and prior to an occurrence of the given phase in a subsequent cycle, inhibits the tool's movement. The control unit in a second cycle, subsequent to the inhibiting, moves the tool in the given direction, in response to the sensor sensing that the second cycle is at the given phase, without moving the tool in an opposite direction, between (a) moving the tool in the given direction in the first cycle, and (b) moving the tool in the given direction in the second cycle. Other embodiments are also described.09-11-2008
20110009737METHOD AND APPARATUS FOR DERMATOLOGICAL TREATMENT AND TISSUE RESHAPING - Exemplary method and apparatus can be provided for directing a substance and electromagnetic radiation to a particular location in a biological tissue, for example, to inject and cure a cosmetic filler in situ. The apparatus can include a needle configured to be inserted into the tissue, and a waveguide configured to direct the electromagnetic radiation, such as optical energy, to a location proximal to the needle tip. The substance can be injected into the tissue through the needle and irradiated by the optical energy. In addition, the exemplary method and apparatus can be provided for determining the location of the needle tip in a biological tissue based on characteristics of light directed through the waveguide and emitted proximal to the needle tip. For example, intensity of the emitted light can indicate whether the needle tip is located inside or outside of a blood vessel.01-13-2011
20110009736Localization Using Non-Metallic Implantable Fiducial Markers - A system may include a biocompatible housing and an electrical circuit disposed within the housing, the electrical circuit to emit a radiofrequency signal, and wherein the electrical circuit does not comprise a metal. Also included may be a signal generator to generate a wireless signal to trigger the electrical circuit, a receiver to receive a wireless response signal generated by the triggered electrical circuit, a processor to determine a location of the biocompatible housing based on the wireless response signal, and a ion beam source to deliver a ion beam to a patient volume including the biocompatible housing.01-13-2011
20110009738SYSTEM AND METHOD FOR VISUALIZING NEEDLE ENTRY INTO A BODY - A system for visualizing needle entry into a body is presented. The system includes a needle for entering a body. The needle is coated with a radiation scattering coating on at least a portion of the needle. The system additionally includes a radiation visualization device which detects reflected radiation directed at a target body and enables medical personnel to view anatomical structures such as a blood vessel along with the inserted needle within a body.01-13-2011
20100280363Electromagnetic Navigation of Medical Instruments for Cardiothoracic Surgery - The present invention provides devices, instruments, systems, and methods to navigate medical instruments within the thoracic cavity. More specifically, the present invention provides a navigation system comprising medical instruments having electromagnetic tracking functionality and the integration of previously acquired imaging into a user interface of the navigation system.11-04-2010
20130165769NESTED BALLOON CATHETER FOR LOCALIZED DRUG DELIVERY - A balloon catheter for delivering a therapeutic and/or diagnostic agent to tissue is described including an outer balloon having a wall with an opening therethrough and an inner surface, an inner balloon disposed in the outer balloon, enclosing an inflation chamber and having an outer surface defining a space between the outer surface of the inner balloon and the inner surface of the outer balloon, a catheter having a first lumen in fluid communication with the space between the inner balloon and the outer balloon for supplying the agent thereto, and a second lumen through which fluid is supplied to the inflation chamber for inflating the inner balloon to urge the agent out of the opening in the outer balloon, wherein the outer balloon and/or the inner balloon comprise at least one protrusion for directing the agent formed by an inner balloon wall and/or the outer balloon wall.06-27-2013
20100113918SYSTEM AND METHOD FOR TRACKING OBJECT - In one embodiment, a position transponder for operation inside the body of a subject is provided. The transponder comprises a sensor coil and a magneto resistor coupled in series to the sensor coil.05-06-2010
20100262001MEDICAL FLUID DELIVERY SYSTEM - A medical fluid delivery system is provided including a steerable, guide catheter, a delivery catheter adapted for deployment at a targeted tissue site using the steerable guide catheter, the delivery catheter including a proximal port, a distal port, and a lumen extending between the proximal and distal ports; a distal fixation element coupled to the delivery catheter so as to position the distal port adjacent the targeted tissue site; and a flexible hollow needle adapted to be advanced through the delivery catheter lumen, the flexible needle including a tissue-piercing distal tip for extending from the distal port of the delivery catheter for advancement into the targeted tissue site and a proximal end for extending from the proximal port of the delivery catheter through which a medical fluid is delivered.10-14-2010
20100069741SYSTEM AND METHOD FOR DETECTION OF ELECTROMAGNETIC RADIATION BY AMORPHOUS SILICON X-RAY DETECTOR FOR METAL DETECTION IN X-RAY IMAGING - Certain embodiments of the present invention provide a method for detecting an electromagnetic field in an imaging system including emitting an electromagnetic field with an electromagnetic transmitter, sensing an electromagnetic field with an imaging system detector, and reading a field image from the detector based at least in part on the electromagnetic field. The imaging system detector is capable of reading an object image and a field image. The detector may be an amorphous silicon flat panel x-ray detector. The electromagnetic transmitter may be used in surgical navigation. The position of a surgical device, instrument, and/or tool may be determined based in part on the field image. The detector may be coordinated to acquire the field image when the electromagnetic transmitter is emitting an electromagnetic field. The detector may be coordinated to acquire the object image when the electromagnetic transmitter is not emitting an electromagnetic field.03-18-2010
20100004530APPARATUS AND METHOD FOR POSITION SENSING - An improved apparatus and method for position sensing of a medical tracker device are presented. The apparatus and method are designed to constrain, rotate, and track the position of a medical tool. o improve the position sensing of the tracker, a joint that provides two degrees of freedom may use a revolute gear pair together with a rotary sensor for angular motion sensing and a sliding/prismatic assembly together with a linear magnetic sensor for linear position sensing. Thus, the linear motion sensing and the angular motion sensing are decoupled.01-07-2010
20090326368System and Method For Integrating Electromagnetic Microsensors in Guidewires - A system and method of integrating electromagnetic microsensors into interventional endovascular devices such as guidewires for tracking guidewires within vessels of a body with the use of a surgical navigation system.12-31-2009
20090275827SYSTEM AND METHOD FOR ASSESSING THE PROXIMITY OF AN ELECTRODE TO TISSUE IN A BODY - A method and system for assessing proximity between an electrode and tissue is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire values for first and second components of a complex impedance between the electrode and the tissue, and to calculate an electrical coupling index (ECI) responsive to the first and second values. The ECU is further configured to process the ECI to determine the proximity of the electrode to the tissue. The ECU may be configured to calculate an electrical coupling index rate (ECIR) based on the calculated ECI and information relating to the change in location of the electrode, and to assess proximity based on the ECIR. Alternatively, the ECU may be configured to assess the proximity using the calculated ECI, as opposed to the ECIR.11-05-2009
20080281187Ferromagnetic threat detection method apparatus - A method and apparatus for detecting ferromagnetic threat objects on a recumbent patient, including magnetizing/sensing stations having mutually orthogonal magnetizing axes. Two magnetizing/sensing stations can be used, but three or more are preferred. The magnetizing/sensing stations are arranged on a table-like mounting structure providing a path for the patient to roll beneath the magnetizing/sensing stations on a gurney. Three additional magnetizing/sensing stations can be provided on either side, or on each side, of the gurney path, at the same height as the patient.11-13-2008
20080275335Methods and apparatus for virtual coronary mapping - A virtual map of vessels of interest in medical procedures, such as coronary angioplasty is created so that doses of contrasting agent given to a patient may be reduced. A position of a coronary guidewire is determined and locations of vessel boundaries are found. When the contrast agent has dissipated, virtual maps of the vessels are created as new images. The locations of the determined vessel boundaries are imported to a mapping system and an image obtained without using a contrast agent is modified based on the imported locations of vessel boundaries. This creates a virtual map of the vessels.11-06-2008
20080214931Method and System for Guiding a Probe in a Patient for a Medical Procedure - Techniques for using a probe in a patient for a medical procedure based on different modes of operating sensor systems than currently a used includes receiving first volume data based on a first mode of operating a first sensing system. In addition, different second volume data is received based on a second mode of operating a second sensing system. Probe position data is also received. The probe position data indicates a position of a probe inserted in the particular patient based on a probe positioning system independent of the first sensing system and the second sensing system. Probe position relative to the first volume data and the second volume data is determined. The operation of the probe is guided based on the probe position relative to the first volume data and the second volume data.09-04-2008
20110015519MEDICAL SYSTEM AND METHOD FOR THE POSITIONALLY CORRECT ASSOCIATION OF AN IMAGE DATA SET WITH AN ELECTROMAGNETIC NAVIGATION SYSTEM - In a method and medical system for positionally correct association of an image data set of a patient, obtained with the medical system, and an N-coordinate system of an electromagnetic navigation system, before a medical procedure at least one sensor coil is attached to the imaging system, and a transformation matrix between the image data set and the sensor coil is determined. During the medical procedure, the image data set is acquired, and the current position of the sensor coil is determined. The image data set is associated in a positionally correct manner with the N-coordinate system based on the known position of the sensor coil relative to the imaging system, and the transformation matrix.01-20-2011
20110054309METHODS, APPARATUSES, AND SYSTEMS USEFUL IN CONDUCTNG IMAGE GUIDED INTERVENTIONS - Methods, apparatuses, and systems relating to image guided interventions on dynamic tissue. One embodiment is a method that includes creating a dataset that includes images, one of the images depicting a non-tissue internal reference marker, being linked to non-tissue internal reference marker positional information, and being at least 2-dimensional. Another embodiment is a method that includes receiving a position of an instrument reference marker coupled to an instrument; transforming the position into image space using a position of a non-tissue internal reference marker implanted in a patient; and superimposing a representation of the instrument on an image in which the non-tissue internal reference marker appears. Computer readable media that include machine readable instructions for carrying out the steps of the disclosed methods. Apparatuses, such as integrated circuits, configured to carry out the steps of the disclosed methods. Systems that include devices configured to carry out steps of the disclosed methods.03-03-2011
20110054308METHOD AND SYSTEM FOR SUPERIMPOSING VIRTUAL ANATOMICAL LANDMARKS ON AN IMAGE - A system for superimposing virtual anatomical landmarks on an image includes a medical positioning system (MPS) for producing location readings with respect to points within a region of interest in accordance with an output of a location sensor disposed in a medical device. A coordinate system of the MPS is registered with an image coordinate system. A control unit receives a signal from a user to record a location reading when the medical device is at a desired point in the region of interest where the user desires to place a virtual landmark, modifies the recorded location reading for motion compensation, transforms the motion-compensated location reading from the MPS coordinate system to the image coordinate system to produce a target location, and then superimposes a representation of the virtual landmark on the image at the target location.03-03-2011
20110054307MEDICAL APPARATUS CONTAINING DEVICE, DISCARDING DEVICE AND METHOD OF USE OF MEDICAL APPARATUS - A container case contains a capsule endoscope which incorporates a magnet. A magnetic body is disposed so as to guide, from one magnetic pole to the other magnetic pole, a magnetic field which is generated from the magnet of the capsule endoscope that is accommodated between and positioned by a first hold portion of an outer case and a second hold portion of an inner case which position the capsule endoscope. Thereby, there is provided a capsule medical apparatus containing device which can facilitate handling of a capsule medical apparatus and can enhance the efficiency in storage of the capsule medical apparatus.03-03-2011
20110054306TISSUE CLIP - A tissue clip for adjoining tissues including a body portion, a biasing mechanism interconnecting the body portion to a tissue grasping mechanism, the grasping mechanism having a first condition wherein the grasping mechanism is extending against and away from the body portion and a second condition wherein the grasping mechanism is biased against the body portion. A tissue clip and deployer combination. A method of interconnecting tissue by deploying the tissue clip, puncturing tissue to be interconnected with the tissue clip, and interconnecting the tissue. A method of treating an aneurism by deploying the tissue clip at an aneurism site, closing off the aneurism site with the tissue clip, and treating the aneurism. A method of imaging a surgical procedure with ultrasound by modifying a surface of a metal surgical instrument, and imaging the metal surgical instrument with ultrasound during a surgical procedure.03-03-2011
20110054305PHOTON UPCONVERTING IMPLANTABLE MEDICAL DEVICES - Implantable medical devices, such as catheters and stents, which contain light upconverting materials as part of their construction, are disclosed. Such upconverting materials, often rare earth compounds, can convert longer wavelength light, such as light from the 600-800 nm region, which penetrates the body tissue easily, but which is too low energy to induce many chemical reactions, into shorter wavelength light, such as light above 500 nm, which penetrates only a small distance through the body tissues, but which contains enough energy to induce a greater variety of chemical reactions, including conversion of drugs such as psorlens from an inactive to an active form, activation of cytotoxic or antimicrobial photocatalysts such as TiO03-03-2011
20110054304Combination Localization System - A navigation system or combination of navigation systems can be used to provide two or more navigation modalities to navigate a single instrument in a volume. For example, both an Electromagnetic (EM) and Electropotential (EP) navigation system can be used to navigate an instrument within the volume. Image data can also be illustrated relative to a tracked position of the instrument in the volume for navigation.03-03-2011
20110054302Method and apparatus for detecting, Characterizing, and sampling tissue via a lumen - An apparatus for diagnosing a patient includes a catheter having a tip. The apparatus includes a bioptome disposed in proximity to the tip to obtain a tissue sample of the patient. The apparatus includes a radiodetector disposed in proximity to the tip to detect radiation in the patient. A method for diagnosing a patient includes the steps of moving a tip of a catheter to a desired location in a blood vessel of the patient determined by radiation detected by a radiodetector disposed in proximity to the tip. There is the step of obtaining a tissue sample of the patient with a bioptome disposed in proximity to the tip.03-03-2011
20110054303Apparatus for registering and tracking an instrument - There is provided a device for generating a frame of reference and tracking the position and orientation of a tool in computer-assisted image guided surgery or therapy system. A first curvature sensor including fiducial markers is provided for positioning on a patient prior to volumetric imaging, and sensing the patient's body position during surgery. A second curvature sensor is coupled to the first curvature sensor at one end and to a tool at the other end to inform the computer-assisted image guided surgery or therapy system of the position and orientation of the tool with respect to the patient's body. A system is provided that incorporates curvature sensors, a garment for sensing the body position of a person, and a method for registering a patient's body to a volumetric image data set in preparation for computer-assisted surgery or other therapeutic interventions. This system can be adapted for remote applications as well.03-03-2011
20110021905INJECTION SYSTEM FOR DELIVERING MULTIPLE FLUIDS WITHIN THE ANATOMY - Devices and systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, a joint or intra-articular space, include a handpiece assembly having a needle extending from its distal end, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medicaments, formulations and/or other fluids or materials contained within vials that are secured to a cassette or other portion of the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.01-27-2011
20100292565MEDICAL IMAGING MEDICAL DEVICE NAVIGATION FROM AT LEAST TWO 2D PROJECTIONS FROM DIFFERENT ANGLES - In a method or system for performing an image-assisted medical procedure involving placing a medical device in a 3D human subject, at least first and second 2D projected images are obtained of the 3D subject at a respective first angle and at a respective second angle, the 3D subject having at least one of the points selected from the group consisting of a start point and an end point for guidance of the medical device. At least one of the start point and the end point are identified in each of the first and second 2D images. 3D positions of at least one of the start point and the end point are calculated. At least one of these start and end point 3D positions are overlaid as a back-projection to a live 2D image. The procedure is performed utilizing the live 2D image with at least one of the start and end points as a guide to place the medical device. The medical device may comprise, for example, a wire or a needle.11-18-2010
20100292566LOAD DETECTION DEVICE AND LOAD DETECTION METHOD - According to this load detection method, load (Fi) in insertion of a linear body having flexibility in an inlet of a hollow tube inserted in a bending vessel in a body is detected, an image of the hollow tube or the linear body is taken, a degree of bending of the hollow tube or the linear body is detected based on the image, and load (Fo) at a tip end of the linear body is calculated based on the detected insertion load (Fi) and the degree of bending. Therefore, the load (Fo) at the tip end of the thin linear body can readily be detected.11-18-2010
20110118593Multiple Cannula Image Guided Tool for Image Guided Procedures - Apparatus and methods are disclosed for use within an image-guided surgical navigation system for facilitating the combined positioning and orientation of multiple surgical implements. A tool guide having multiple cannulas is tracked by a surgical navigation system in real time. Position data of the tool guide is registered and combined with pre-acquired images by the navigation computer. Concurrent graphical representations of the plurality of cannulas are superimposed over the images and displayed. The display allows the surgeon to place the tool guide into the patient's body and position and orient the plurality of cannulas which are then used to place each of the implements.05-19-2011
20110118590System For Continuous Cardiac Imaging And Mapping - A system improves precision and reliability of intra-cardiac catheter position tracking and monitoring. An interventional system for internal anatomical examination includes a catheterization device for internal anatomical insertion. The catheterization device includes, at least one magnetic field sensor for generating an electrical signal in response to rotational movement of the at least one sensor about an axis through the catheterization device within a magnetic field applied externally to patient anatomy and a signal interface for buffering the electrical signal for further processing. A signal processor processes the buffered electrical signal to derive a signal indicative of angle of rotation of the catheterization device relative to a reference. The angle of rotation is about an axis through the catheterization device. A reproduction device presents a user with data indicating the angle of rotation of the catheterization device.05-19-2011
20110118589LOCATOR, DEVICE AND METHOD FOR ELECTRONICALLY LOCATING AND READING THE SETTING OF AN ADJUSTABLE VALVE - The invention is aimed at improving valve pinpointing and reading devices by proposing to activate a magnetic detection source allowing measurements regularly-distributed in a circle around an axis at predetermined measurement positions. An exemplary locator comprises a casing (05-19-2011
20110137155DELIVERY DEVICE FOR LOCALIZED DELIVERY OF A THERAPEUTIC AGENT - Therapeutic agent delivery devices and methods for delivering a therapeutic agent to a target location as well as methods for determining the location of a lesion on a vessel wall are disclosed. Various embodiments disclose an expandable member comprising a drug delivery matrix for selectively delivering a therapeutic agent to a lesion on a vessel wall. The drug delivery matrix may comprise one or more sensors and an electroactive polymer for releasing the therapeutic agent. Other embodiments disclose an expandable member comprising a plurality of radially-expanding flexible walls forming a plurality of channels for selectively delivering therapeutic agent to a target area adjacent one or more of the channels. Detecting a lesion may comprise using a plurality of Hall effect sensors disposed on a distal end of a catheter.06-09-2011
20110137153PROBE DATA MAPPING USING CONTACT INFORMATION - A method of mapping includes receiving inputs measured by a probe at respective locations inside a body cavity of a subject. At each of the respective locations, a respective contact quality between the probe and a tissue in the body cavity is measured. The inputs for which the respective contact quality is outside a defined range are rejected, and a map of the body cavity is created using the inputs that are not rejected.06-09-2011
20100305433NON-CONTACT CARDIAC MAPPING, INCLUDING RESOLUTION MAP - A non-contact cardiac mapping method is disclosed that includes: (i) inserting a catheter into a heart cavity having an endocardium surface, the catheter including multiple, spatially distributed electrodes; (ii) measuring signals at the catheter electrodes in response to electrical activity in the heart cavity with the catheter spaced from the endocardium surface; and (iii) determining physiological information at multiple locations of the endocardium surface based on the measured signals and positions of the electrodes with respect to the endocardium surface. Related systems and computer programs are also disclosed.12-02-2010
20100305430TISSUE MARKER - The invention relates to a tissue marker (12-02-2010
20100305432System and Method for Locating Medical Devices in Vivo Using Ultrasound Doppler Mode - A system for locating a medical device in vivo includes an ultrasound scanner having a scan head and being capable of operating in a 3D Doppler mode, a medical device having a distal end configured to be inserted in vivo, and a vibratory element coupled to the medical device to induce vibrations in the first distal end. When the scan head is positioned over the distal end inserted in vivo to obtain scan data of the tissue volume, the ultrasound scanner is configured to generate 3D Doppler data in the form of a plurality of slices from the scan data and to identify a location of the distal end within the slices based upon localized data within one of the slices meeting predetermined criteria.12-02-2010
20100305427LONG-RANGE PLANAR SENSOR ARRAY FOR USE IN A SURGICAL NAVIGATION SYSTEM - A planar sensor array for use in a surgical navigation system comprising at least one substrate and at two layers of a plurality of planar sensor coils formed on or within the at least one insulating substrate. The planar sensor array may be an electromagnetic planar transmitter coil array or an electromagnetic planar receiver coil array that includes at two layers of a plurality of planar electromagnetic transmitter or receiver spiral-shaped coils formed on or within the at least one substrate. The surgical navigation system includes the use of at least one magnetoresistance reference sensor attached to a fixed object; at least one magnetoresistance sensor attached to an object being tracked; and a planar sensor coil array communicating with the at least one magnetoresistance reference sensor and the at least one magnetoresistance sensor to determine the position and orientation of the object being tracked.12-02-2010
20100305429SYSTEM AND METHOD FOR USING TISSUE CONTACT INFORMATION IN AN AUTOMATED MAPPING OF CARDIAC CHAMBERS EMPLOYING MAGNETICLY SHAPED FIELDS - The invention relates to a method for using tissue contact technology to optimize automated cardiac chamber mapping algorithms to both speed up the mapping process and guarantee the definition of the actual chamber limits. The invention further comprises a method for conveying tissue type information to such automatic mapping algorithms so as to allow them to adapt their point collection density within areas of particular interest. The method is enhanced by the use of a magnetic chamber that employs electromagnetic coils configured as a waveguide that radiate magnetic fields by shaping the necessary flux density axis on and around the catheter distal tip so as to push, pull and rotate the tip on demand and as defined by such automatic mapping algorithms.12-02-2010
20100305428ULTRASONIC GUIDANCE OF SUBCUTANEOUS TUNNELING - A method of tracking a medical device in a body includes inserting the medical device into a body and emitting a sonic signal from a transceiver coupled to the medical device. The method further includes receiving an echo of the sonic signal with the transceiver and detecting a location of the medical device in the body based on the received echo.12-02-2010
20100324413X-RAY DIAGNOSTIC SYSTEM - In one embodiment, an X-ray diagnostic system is provided. The system is provided with an X-ray irradiation section, an X-ray detection section, an image data generation unit, a position detecting unit and a control section. The X-ray irradiation section radiates an X-ray to an object to be diagnosed. The X-ray detection section detects the X-ray radiated from the X-ray irradiation section and transmitted through the object so as to generate X-ray transmission data. The image data generation unit generates image data based on the X-ray transmission data. The position detecting unit detects position of a catheter inserted into the object. The control section switches X-ray irradiation conditions to be irradiated from the X-ray irradiation section, based on positional data detected by the position detecting unit and electrocardiogram data of the object.12-23-2010
20100324412CATHETER WITH OBLIQUELY-ORIENTED COILS - A medical probe includes an elongate body having a longitudinal axis, and a plurality of magnetic field transducers, which are contained within the body and have respective transducer axes that are oriented obliquely with respect to the longitudinal axis.12-23-2010
20100331669SEPTUM PORT LOCATOR SYSTEM AND METHOD FOR AN IMPLANTABLE THERAPEUTIC SUBSTANCE DELIVERY DEVICE - An implantable medical device system includes an implantable device and an external locator device for percutaneously locating detecting port opening of the implantable device. The implantable device includes a port chamber forming the port opening, a septum sealing the port chamber relative to an exterior of the device, and a coil positioned at a known location relative to the port opening. The locator device includes a controller, at least one X-loop electrically coupled to the controller and oriented along a first major axis, and at least one Y-loop electrically coupled to the controller and oriented along a second major axis differing from the first major axis. The system is configured such that when the locator is spatially proximate the coil, an induced voltage in at least the Y-loop(s) is read by the controller to indicate a location of the coil relative to the locator device.12-30-2010
20100179419Intervertebral Prosthesis - An intervertebral prosthesis for insertion between adjacent vertebrae includes upper and lower prosthesis plates locatable against respective vertebrae and having opposing, concavely curved recesses therein, and a core located between the plates. The core has opposed, convexly curved surfaces received in the recesses of the plates to allow the plates to slide in articulated manner over the core. The opposed surfaces of the core and the recesses of the plates have cooperating spherical curvatures. The recess of each plate surrounds a locating peg projecting centrally from the base of the recess and is bounded by an annular rim, such that the annular rims of the plates are arranged to contact one another at a predetermined limit of sliding movement of the plates over the core. The peg locates loosely in an opening located centrally in a curved surface of the core, whereby the plates can slide over the core in all directions while the peg holds the core captive.07-15-2010
20100168561Intraoperative Tissue Mapping and Dissection Systems, Devices, Methods, and Kits - Intraoperative devices are described that assist the surgeon in identifying the location and characteristics of tissues and structures. Devices are also described that have the added capability of marking the location of the identified tissues and structures. This invention also includes devices that can selectively ablate adjacent tissues while avoiding damage and trauma to the identified tissues and structures by combining ablation with sensing, where sensing of either tissue properties, markings made by another device or surgeon, or a reference probe can be used. Devices are also described that protect tissue in the proximity of reference markings or probes by closed loop inhibition of the ablation process. The devices, systems, methods and kits described are adapted and configured to facilitate locating a target structure or target tissue within a body of a mammal, including nerves, peripheral nerves, blood vessels, and tubes such as the ureter. The devices, systems and methods may discriminate between different tissues by exploiting the electrical, mechanical, and physiological properties of the body.07-01-2010
20090171191ARTICULAR INJECTION SYSTEM - Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.07-02-2009
20090171194METHODS OF INJECTING FLUIDS INTO JOINTS USING A HANDPIECE ASSEMBLY - Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.07-02-2009
20090171192METHOD OF INJECTING FLUIDS INTO MULTIPLE PATIENTS - Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.07-02-2009
20090171193IMAGING-ASSISTED ARTICULAR INJECTION SYSTEM AND METHOD - Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.07-02-2009
20110137150METHODS AND DEVICES FOR DETERMINING LUMEN OCCLUSION - Embodiments of the present invention describe methods of determining the occlusion of body lumens and apparatuses for doing so. In one particular embodiment, the occlusion of the fallopian tubes by an intrafallopian contraceptive device may be confirmed by contrast enhanced ultrasonography (also known as stimulated acoustic emission hysterosalpingo-contrast sonography). In these embodiments a contrast agent containing microbubbles is used.06-09-2011
20110137156SYSTEMS, METHODS, APPARATUSES, AND COMPUTER-READABLE MEDIA FOR IMAGE MANAGEMENT IN IMAGE-GUIDED MEDICAL PROCEDURES - Presented herein are methods, systems, devices, and computer-readable media for image management in image-guided medical procedures. Some embodiments herein allow a physician to use multiple instruments for a surgery and simultaneously provide image-guidance data for those instruments. Various embodiments disclosed herein provide information to physicians about procedures they are performing, the devices (such as ablation needles, ultrasound transducers or probes, scalpels, cauterizers, etc.) they are using during the procedure, the relative emplacements or poses of these devices, prediction information for those devices, and other information. Some embodiments provide useful information about 3D data sets and allow the operator to control the presentation of regions of interest. Additionally, some embodiments provide for quick calibration of surgical instruments or attachments for surgical instruments.06-09-2011
20100099982System, Device, and Method for Determining a Position of an Object - A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a patient's body. The substrate includes a sensor that is tracked by the surgical navigation system and a positional device that determines the position of an anatomical structure relative to the sensor. The concatenation of the position of the sensor and the relative position of the anatomical structure allows a global position of the anatomical structure to be determined by a computer system and displayed to the user.04-22-2010
20110190625CARDIAC MAPPING - A non-contact cardiac mapping method is disclosed that includes: (i) inserting a catheter into a heart cavity having an endocardium surface, the catheter including multiple, spatially distributed electrodes; (ii) measuring signals at the catheter electrodes in response to electrical activity in the heart cavity with the catheter spaced from the endocardium surface; and (iii) determining physiological information at multiple locations of the endocardium surface based on the measured signals and positions of the electrodes with respect to the endocardium surface. Related systems and computer programs are also disclosed.08-04-2011
20120071752USER INTERFACE AND METHOD FOR OPERATING A ROBOTIC MEDICAL SYSTEM - System and methods for interfacing user in the control of elongated flexible members for use inside a patient's body is described herein. In one embodiment, a system includes a processor configured for generating a virtual representation of a catheter on a viewing screen, a first control for allowing a user to rotate the virtual representation of the catheter about a first axis, until a heading direction of the virtual representation of the catheter aligns with a heading direction of the catheter as it appears in a first fluoroscopic image, and a second control for allowing the user to rotate the virtual representation of the catheter about a second axis, until a tilt angle of the virtual representation of the catheter aligns with a tilt angle of the catheter as it appears in the first fluoroscopic image or in a second fluoroscopic image.03-22-2012
20100125194SUBCUTANEOUS LEAD GUIDANCE - An apparatus for subcutaneous lead guidance includes a flexible guide strap, a navigation catheter and a tunneling tool. The guide strap includes an upper layer having a plurality of retainer formations and a substrate attachable on a patient's skin extending between an incision and a target site. The navigation catheter is coupled to the upper layer via the retainer formations from a first end to a second end of the guide strap. The navigation catheter includes a plurality of position sensors for generating a subcutaneous navigation volume between the incision and the target site when the navigation catheter is coupled to a navigation system. The tunneling tool has a distal portion with a leading end and at least one position sensor on the distal portion for viewing digital representation of the distal portion in relation to the navigation volume on a display coupled to the navigation system.05-20-2010
20100191102AUTOMATIC CORRECTION AND UTILIZATION OF A VASCULAR ROADMAP COMPRISING A TOOL - Apparatus and methods are described including generating a road map of a blood vessel. Subsequent to the generation of the road map, a tool is inserted into the blood vessel. While the tool is inside the blood vessel, the position of the tool is determined. The road map is modified to account for the determined position of the tool. Other embodiments are also described.07-29-2010
20100191100METHODS AND SYSTEMS FOR DIAGNOSING, TREATING, OR TRACKING SPINAL DISORDERS - Methods and systems for visualizing and analyzing anatomical motion are disclosed. The method includes providing a plurality of implantable sensors, each sensor configured for implantation adjacent to an anatomical feature of a patient and tracking the positions of the implantable sensors as the patient is put through a diagnostic motion protocol. The method also includes correlating the positions of the implantable sensors to the positions of the anatomical features of the patient adjacent to the sensors, visualizing a motion sequence of the anatomical features according to the positions of the anatomical features from the diagnostic motion protocol; and analyzing the motion sequence of the anatomical features to identify a medical problem.07-29-2010
20110190624OPTICAL SYSTEM AND METHOD FOR LOCALIZING THE FOSSA OVALIS DURING TRANS-SEPTAL PROCEDURES - A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.08-04-2011
20100022871DEVICE AND METHOD FOR GUIDING SURGICAL TOOLS - A device and method for guiding surgical tools by ultrasonic imaging having means for acquiring a time sequence of 3D ultrasonic images of a target area, means for determining and tracking the position and orientation of a surgical tool and means for defining the direction of a characteristic axis of the tool corresponding to the detected position and orientation of the tool. The device further having means for determining the position of a working end of the tool along the characteristic axis, means for determining the relative position in space of each 3D image and the direction of the characteristic axis corresponding to each 3D image, and means for generating a 2D image defined by an image plane that intersects the corresponding 3D image of said time sequence.01-28-2010
20100030065SURGICAL ACCESS WITH TARGET VISUALIZATION - Accessing a spine from a curved postero-lateral approach may include a curved cannula positioned along a curved path from an opening in the skin to a location proximate to the spine. Positioning of the distal end of a radiolucent curved access cannula may be assisted by use of one or more radio-opaque markers. Markers may be positioned to form a cross hair image in fluoroscopy to assist in cannula placement. Radio-opaque inserts placed in and extended beyond the curved access cannula may have radiolucent windows to allow viewing of the cannula's radio-opaque markers. An appropriately placed curved access cannula may be clamped to prevent subsequent movement. Appropriate tools may be introduced through the curved access cannula and the distal radio-opaque tool heads may be viewed relative to the radio-opaque markers. The curved access cannula may be attached to the spine through one or more screws.02-04-2010
20100030063SYSTEM AND METHOD FOR TRACKING AN INSTRUMENT - A system for tracking an instrument relative to an anatomical structure is provided. The system can include at least one tracking device, which can be coupled to the instrument. The system can also include a shape sensor coupled to the instrument that can determine a shape of the instrument. The system can include a tracking system that can track a position of the at least one tracking device relative to the anatomical structure. The system can further include a navigation system that can determine a position and shape of the instrument relative to the anatomical structure based on the position of the at least one tracking device determined by the tracking system and the shape of the instrument as sensed by the shape sensor.02-04-2010
20100030064Feature-Based Registration Method - Methods for registering a three-dimensional model of a body volume to a real-time indication of a sensor position that involve analyzing scanned and sensed voxels and using parameters or thresholds to identify said voxels as being either tissue or intraluminal fluid. Those voxels identified as fluid are then used to construct a real-time sensed three-dimensional model of the lumen which is then compared to a similarly constructed, but previously scanned model to establish and update registration.02-04-2010
20100022872METHOD AND APPARATUS FOR 3-D IMAGING OF INTERNAL LIGHT SOURCES - The present invention provides systems and methods for obtaining a three-dimensional (3D) representation of one or more light sources inside a sample, such as a mammal. Mammalian tissue is a turbid medium, meaning that photons are both absorbed and scattered as they propagate through tissue. In the case where scattering is large compared with absorption, such as red to near-infrared light passing through tissue, the transport of light within the sample is described by diffusion theory. Using imaging data and computer-implemented photon diffusion models, embodiments of the present invention produce a 3D representation of the light sources inside a sample, such as a 3D location, size, and brightness of such light sources.01-28-2010
20100022873Navigation System for Cardiac Therapies - An image guided catheter navigation system for navigating a region of a patient includes an imaging device, a tracking device, a controller, and a display. The imaging device generates images of the region of the patient. The tracking device tracks the location of the catheter in the region of the patient. The controller superimposes an icon representing the catheter onto the images generated from the imaging device based upon the location of the catheter. The display displays the image of the region with the catheter superimposed onto the image at the current location of the catheter.01-28-2010
20120172716ELECTROMAGNETIC COIL SENSOR FOR A MEDICAL DEVICE - A positioning sensor for use in a medical device wherein the device has a heat-fused layer comprising a first material having a first melting temperature. The sensor has a tubular core comprising a second material having a second melting temperature that is higher than the first temperature. The core has a central through-bore extending along an axis between opposing axial ends of the core, and where the core further has a radially-outermost outermost winding surface. The sensor includes an electrically conductive coil wound on the winding surface.07-05-2012
20110144481A DEVICE, APPARATUS AND METHOD FOR OBTAINING PHYSIOLOGICAL SIGNALS BY WAY OF A FEEDING TUBE - A neonatal feeding tube (06-16-2011
20110144480STENT MARKER DETECTION USING A LEARNING BASED CLASSIFIER IN MEDICAL IMAGING - Stent marker detection is automatically performed. Stent markers in fluoroscopic images or other markers in other types of imaging are detected using a machine-learnt classifier. Hierarchal classification may be used, such as detecting individual markers with one classifier and then detecting groups of markers (e.g., a pair) with a joint classifier. The detection may be performed in a single image and without user indication of a location.06-16-2011
20100222669MEDICAL DEVICE GUIDE - A medical device guide having an inner member having a proximal end, a distal end, and at least one lumen therein. An outer member surrounds the proximal portion of the inner member such that the distal end of the inner member projects beyond the distal end of the outer member, the portion of the inner member being sufficient flexible to flex with a guide wire extending through the lumen. The outer member is sufficiently stiff that the proximal end of the medical device guide can be engaged by a driven by a medical device advancer.09-02-2010
20100305431Radial Cardiac Catheterization Board - Embodiments of the present description provide a medical apparatus for use in supporting a patient lying in a supine position during a radial cardiac catheterization procedure. More particularly, embodiments of the present description provide an arm board a patient's arm during a radial cardiac catheterization procedure. The arm board is a substantially planar member having a support surface on which the patient's arm can be stabilized during a catheterization procedure. Desirably, the arm board has both a radiolucent portion and a radiopaque portion, thereby reducing and/or eliminating a doctor's exposure to radiation during radial cardiac catheterization procedures without impairing the ability to obtain the necessary medical images. Also provided is a medical apparatus and a method for its use.12-02-2010
20110118592REDUCING MECHANICAL STRESS ON CONDUCTORS AND CONNECTION POINTS IN A POSITION DETERMINABLE INTERVENTIONAL MEDICAL DEVICE - A medical device configured for diagnosis or treatment of tissues within a body is provided. The device includes an elongate, deformable member configured to be received within a lumen in the body and having proximal and distal ends. A position sensor is disposed at the distal end. In one embodiment, a conductor is wound about the member. The conductor is connected to the position sensor and has a first winding pitch over a first portion of the deformable member and a second winding pitch, different from the first winding pitch, over a second portion of the deformable member. In another embodiment, the member defines a neutral longitudinal axis extending between the proximal and distal ends. A conductor extending between the proximal and distal ends is connected to the position sensor at a connection node on the neutral axis.05-19-2011
20110118594MEDICAL IMPLANT TARGETING SYSTEM AND METHOD05-19-2011
20090275826Non-Fouling Surfaces for Reflective Spheres - The present invention relates to treating of reflective surfaces to prevent fouling. The present invention also relates to reflective materials treated to prevent fouling, as well as methods of using such reflective materials.11-05-2009
20110137151REDUCTION OF CATHETER ELECTRODE LOADING - A method for position sensing includes inserting a probe having a first probe-electrode and a second probe-electrode into a body of a subject, and coupling body-surface electrodes to a surface of the body. Currents passing between the first probe-electrode and the body-surface electrodes are measured, using first circuitry coupled to at least the first probe-electrode and having a first electrical ground, and position coordinates of the probe are determined responsively to the measured currents. Second circuitry, having a second electrical ground, is coupled to at least the second probe-electrode, and the first electrical ground is isolated from the second electrical ground.06-09-2011
20110306874Adjustable Instruments For Use With A Localizer - A system for tracking the position of an instrument relative to an area of interest. The system includes an instrument and an instrument guide mounted to the instrument. The instrument guide carries a first localizer proximate the instrument. The first localizer is movable relative to the instrument. The system also includes a fixator configured to be attached to the area of interest. The fixator carries a second localizer proximate the area of interest. The second localizer is movable relative to the area of interest. The first and second localizers are movable in order that the first and second localizers are in communication such that the position of one of the first and second localizers is known relative to the position of the other of the first and second localizers.12-15-2011
20110306873SYSTEM FOR PERFORMING HIGHLY ACCURATE SURGERY - Methods and apparatuses for performing highly accurate surgery using a finite element model coupled with ultrasonic tracking are described.12-15-2011
20120150026IMAGING SYSTEM - A method of investigating the location and size of a light-emitting source in a subject is disclosed. In practicing the method, one first obtains a light intensity profile by measuring, from a first perspective with a photodetector device, photons which (i) originate from the light-emitting source, (ii) travel through turbid biological tissue of the subject, and (iii) are emitted from a first surface region of interest of the subject. The light-intensity profile is matched against with a parameter-based biophotonic function, to estimate function parameters such as depth and size. The parameters so determined are refined using data other than the first measured light intensity profile, to obtain an approximate depth and size of the source in the subject. Also disclosed is an apparatus for carrying out the method.06-14-2012
20100191101CATHETER WITH ISOLATION BETWEEN ULTRASOUND TRANSDUCER AND POSITION SENSOR - Medical apparatus includes an invasive probe, for insertion into a body of a living subject. An ultrasonic subsystem includes an ultrasonic transducer contained in the probe and image processing circuitry, which is located outside the probe and is coupled to communicate with the ultrasonic transducer in the probe. A position sensing subsystem includes a position transducer contained in the probe and position tracking circuitry, which is located outside the probe and is coupled to communicate with the position transducer so as to determine position coordinates of the ultrasonic transducer in the body. The position sensing subsystem is electrically isolated from the ultrasonic subsystem.07-29-2010
20120283554Venous Access Port with Molded and/or Radiopaque Indicia - A venous access port assembly having a base, a peripheral surface, and a septum. The base defines an interior reservoir. The peripheral surface includes integrally molded X-ray discernable indicia identifying that the assembly is rated for power injection. The X-ray discernable indicia may extend through a height of the peripheral surface from a top surface to a bottom surface thereof. According to one aspect, the peripheral surface may be formed from X-ray discernable material, and the X-ray discernable indicia may be formed from the X-ray discernable material, or they may be formed by voids in the X-ray discernable material. According to another aspect, the peripheral surface may be formed from a radiotransparent or radiolucent material and applied with a radiopaque agent, and the X-ray discernable indicia may be one or more voids in the radiopaque agent or may be portions of the peripheral surface applied with the radiopaque agent.11-08-2012
20090054762Implant Location Positioning System - The invention relates to an implant layer positioning system comprising a device that can be fixed to a bone section and is used to plan the positioning of implants in order to enable corrective operations to be performed on the bone with optimum bone contact. Said device reproduces the geometry of at least one section of the implant and can be freely oriented by the operator towards accessible parts of the bone. The inventive system also comprises a control unit which virtually evaluates the relevant implant parts, on the basis of the navigation data of the tracked device and the data input of the planned corrective operation, in the form of three-dimensional geometry bodies in fluoroscopy sketches or other referenced image or geometry data. Once the planned proceedings have been inputted, the control unit of the navigation system can virtually merge the corresponding position of all implant parts with the referenced image or geometry data of the patient in a three-dimensional manner by means of corresponding computational algorithms, and once the device has been oriented, the control unit can store the position of said device with all related dependent positions of the implant parts planned at the same time, and all of the planning information can be made available for use with navigated tools.02-26-2009
20120046543Patient Breathing Modeling - A method of accounting for the movement of the lungs during an endoscopic procedure such that a previously acquired image may be dynamically registered with a display showing the position of a locatable guide. After an initial image set is acquired, an area of interest is identified and the movement thereof due to breathing is mathematically modeled. Patient movement sensors are then used to provide information on the patient's breathing patterns. This information is entered into the mathematical model in order to update the registration between the image set and a display showing the position of the locatable guide.02-23-2012
20120046542Method and Apparatus for Performing a Navigated Procedure - A system can be used to navigate or guide an instrument or device into an anatomy of a patient. The navigation can occur with the use of image data acquired of the patient. The image data can be registered to the patient space for navigation. Also, one or more coils can be used for tracking or localization.02-23-2012
20120004540HUMAN CAVITY INNER WALL THREE-DIMENSIONAL MAPPING METHOD, EQUIPMENT AND SYSTEM - A human cavity inner wall three-dimensional mapping method, and a corresponding device and system, comprising: at least one field generating device which generates a plurality of distinguishable fields under excitation of a drive signal; at least one field sensor located in a target device for detecting the distinguishable fields to generate a sensor signal; and a positioning signal processing device for transmitting the drive signal to the field generating device and detecting the output of the field sensor signal to acquire data of five-dimensional position and orientation coordinates of a position on the target device where the sensor is located.01-05-2012
20120004539ULTRASOUND IMAGING SYSTEM AND METHODS OF IMAGING USING THE SAME - A method of registering the position of an object moving in a target volume in an ultrasound imaging system includes capturing a first ultrasound image of a target volume. A second ultrasound image of the target volume is then captured after the capturing of the first ultrasound image. The position of the object in the target volume is identified using differences detected between the first and second ultrasound images. In another aspect, a region of interest in the target volume is determined. A segment of an operational scan range of a transducer of the ultrasound imaging system encompassing the region of interest is determined. The transducer is focused on the segment of the operational scan range during image capture.01-05-2012
20120004535VERESS NEEDLE WITH ILLUMINATED TIP AND CAVITY PENETRATION INDICATOR - A Veress needle assembly comprises an outer steel tube with a sharpened tip at the distal end surrounding an inner rod having a blunt distal end. The proximal end of the inner rod is spring biased towards a position in which its distal end extends beyond the distal end of the outer stainless steel tube so that while piercing the wall of a body cavity the inner rod is forced upwardly against the spring bias to allow the sharpened end of the outer tube to extend into a cutting position. An indicator light supported on the proximal end of the assembly is controlled by a switch which is in a first position when the outer tube is passing through the wall of the body cavity and a second position when the outer tube enters the body cavity behind the wall, allowing the rod to move beyond the distal end of the outer tube, thereby changing the illumination of the light source so that the operator is signaled that the Veress needle has passed into the body cavity.01-05-2012
20120004534Surgical referencing unit, surgical instrument and surgical navigation system - To improve a surgical referencing unit for a surgical navigation system, with which a spatial position and/or orientation of the referencing unit is determinable, the referencing unit comprising a base body and at least one marker element arranged on the base body, and the spatial position of the marker element being determinable by the navigation system, so that the handling thereof is simplified and possible errors are eliminated during use thereof, it is proposed that the at least one marker element be movably mounted on the base body, that the referencing unit comprise a first interface device which is configured for engagement with a second interface device provided on a surgical instrument or an implant in a connected position, and that the at least one marker element be movable into a predefined marker element position in dependence upon the interacting first and second interface devices.01-05-2012
20120004533OPTIMIZATION OF MULTIPLE CANDIDATES IN MEDICAL DEVICE OR FEATURE TRACKING - Multiple candidates are optimized in medical device or feature tracking. Possible locations of medical devices or features for each of a plurality of different times are received. The possible locations of devices are modeled using a probability function. An iterative solution to obtain the maximum of the probability function determines the possible locations to be used as the locations of the medical devices or features for each time. Where two or more medical devices or features are provided with a geometric relationship, such as being connected by a detected guide wire, the probability function may account for the geometric relationship, such as a geodesic distance between the possible locations for the two medical devices.01-05-2012
20120004536Device and Method for Bone Imaging - The invention comprises a modified implant useful to assess bone by imaging. The modified implant comprises a medical implant and at least one detectable marker element associated with the implant that serves as a reference point in medical imaging. Preferably, the implant and the detector marker elements have different radiolucencies such that one element can be seen through the other in medical imaging.01-05-2012
20100087731Method for Tracking Degradation of a Biodegradable Stent Having Superparamagnetic Iron Oxide Particles Embedded Therein - A tubular stent formed from a plurality of filaments, the filaments constructed out of a solid bioabsorbable polymeric material having active agent particles dispersed there through that are visible by magnetic resonance imaging (MRI). The active agent particles are superparamagnetic iron oxide (SPIO) particles. The SPIO particles enhance the visibility of the polymeric stent under MRI, and also allow for accurate monitoring of stent degradation. As the stent degrades, the SPIO particles are released and either flow downstream or are embedded by nearby macrophages. The amount of SPIO particles within the remaining stent body is decreased, which results in a different MRI signal. By quantifying the signal change, the amount of biodegradable stent remaining can be deduced in situ and the stent degradation rate may be accurately calculated.04-08-2010
20110098559Guiding insert assembly for a catheter used with a catheter position guidance system - A catheter position guidance system, for use in conjunction with a guiding insert assembly, having an electrical connector, an elongated conductor operatively coupled to the connector, an elongated stiffener coupled to the connector and an electromagnetic field radiator including a support device coupled to the elongated stiffener and operatively coupled to the conductor, the electromagnetic field radiator having an inductance-enhancing element operatively coupled thereto.04-28-2011
20120010500CAS SYSTEM FOR CONDYLE MEASUREMENT - A computer assisted surgery system for conducting orthopedic surgery on a knee joint includes a condyle digitizer having a posterior condyle abutment surface defining a first plane and a distal condyle abutment surface defining a second plane perpendicular to the first plane, and a trackable member which is locatable and trackable in three dimensional space by the computer assisted surgery system to define at least orientation of the condyle digitizer in real time. A computer determines a most remote reference point of the femur of the knee joint lying within at least one of the first and second planes when the condyle digitizer is abutted against condyles of the femur such that the posterior condyle abutment surface abuts a posterior side of the condyles and the distal condyle abutment surface abuts a distal side of the condyles.01-12-2012
20110166444MRI-VISIBLE SUTURES FOR MINIMALLY INVASIVE IMAGE-GUIDED ANASTOMOSIS - When performing image-guided surgical procedures, a surgical fastener (07-07-2011
20110166443CATHETER HAVING MAPPING ASSEMBLY - A mapping catheter comprises a catheter body and a mapping assembly. The catheter body has an outer wall, proximal and distal ends, and at least one lumen extending therethrough. The mapping assembly comprises a generally straight proximal region attached to the catheter body, a generally circular main region distal the proximal region having an outer circumference, and a generally straight distal region distal the main region. The mapping assembly also comprises a support member having shape-memory, a non-conductive covering over the support member, and a plurality of electrodes on the non-conductive covering along the generally circular main region.07-07-2011
20110166442SYSTEM FOR OPTICALLY DETECTING POSITION OF AN INDWELLING CATHETER - The present invention relates generally a device for locating an indwelling catheter relative to its initial location. The system of the invention is based on emitting light from an optical probe placed on the patient to an optical marker on the tip of the catheter. The reflected light from the optical marker is then detected by the optical probe and the reading is recorded to memory as the reference measurement. The position of the optical probe on the patient is marked so that future measurements are taken from the same location. These future measurements will be compared to the reference measurement and from this comparison the displacement of the tip of the catheter is found and can be corrected. This system is fast, non-invasive, radiation free, and accurate to within 2-3 mm.07-07-2011
20120065498APPARATUS AND METHOD FOR MINIMALLY INVASIVE THERAPY OF MITRAL REGURGITATION - A system and method of treatment of mitral valve insufficiency using an implantable medical device is described. The system uses a C-arm X-ray device configured to produce computed-tomographic (CT)-like images, and to superimpose the CT-like images on a fluoroscopic image taken with the same X-ray device as a part of the treatment procedure. The fluoroscopic images are used to guide a catheter in the patient so as to place the medical device in a proper position. The efficacy of the procedure may be assessed using a non-invasive or minimally invasive acoustic imaging technique.03-15-2012
20120065497Three Dimensional Minimally-Invasive Spinal Imaging System and Method - A method and system is disclosed that is operable to generate a location value associated with an implant that has been implanted in a predetermined location of a vertebra of a spine. The location value can be utilized to generate a three-dimensional animation of the spine in motion. The system includes a plurality of implants that include a controller having a memory. The implants also include a telemetry unit connected with the controller that is used to wirelessly transmit and receive data. In addition, the implants include an acoustic generator that is configured to generate an acoustic pulse in response to a signal from the controller. An external control unit is wirelessly connected with the implant for receiving various data values from the implant.03-15-2012
20120059250Power Injectable Port Identification - An implantable port for accessing internal body structures, the port comprises a proximal housing including an opening providing access to an interior of the port and a distal housing adapted for assembly with the proximal housing, the distal housing including a reservoir which, when the distal housing is mated with the proximal housing is in fluid communication with the opening of the proximal housing in combination with a radiopaque element in one of the proximal and distal housings, a shape of the radiopaque element identifying, when imaged, a structural characteristic of the port not otherwise identifiable visually.03-08-2012
20120059247ECHOGENIC NEEDLE FOR BIOPSY DEVICE - A biopsy device comprises an elongate needle having a piercing tip, a lateral aperture, and one or more echogenic features. In some versions, a dimpled surface provides the one or more echogenic features. The dimples may be concave or convex. In some versions, the piercing tip comprises a blade, and the one or more echogenic features are provided by openings formed transversely through the blade. In some versions, the one or more echogenic features are provided by serrations of the blade. Such serrations may be jagged or rounded. In some versions, the piercing tip is multi-faceted, and the facets of the tip provide the one or more echogenic features. A coagulant may also be provided on the needle. The piercing tip of the needle may rotate relative to other portions of the needle to facilitate insertion of the needle in tissue.03-08-2012
20120016229ELECTRODE - The present invention relates to an electrode configured to be fixable relative to a target area within a body, the electrode comprises: a positioning device for tracking variations of a position of the electrode relative to a radiation source, a dose measuring unit to detect administered dose in the target area from the radiation source, and an identification unit. The identification unit and the dose measuring unit are configured to be connectable to an externally arranged control unit via a first pair of electrical connections. The identification unit comprises: an electronic identification tag, and a switch configured to alternate between a first mode in which administered dose from the radiation source may be detected in the dose measuring unit, and a second mode in which the identification tag may be read by the externally arranged control unit.01-19-2012
20120016228SYSTEM, APPARATUS, AND METHOD FOR IN-VIVO ASSESSMENT OF RELATIVE POSITION OF AN IMPLANT - A method for providing an in-vivo assessment of relative movement of an implant that is positioned in a living being is provided that comprises a first assembly and a second assembly that are positioned within the living being. The first assembly comprises a passive electrical resonant circuit that is configured to be selectively electromagnetically coupled to an ex-vivo source of RF energy and, in response to the electromagnetic coupling, generates an output signal characterized by a frequency that is dependent upon a distance between the first assembly and the second assembly at the time of the electromagnetic coupling.01-19-2012
20120016227ELECTRIC POTENTIAL MAPPING AND ELECTRODE ATTACHMENT DEVICE WITH CONTINUOUS ELECTRIC SIGNAL MONITORING AND METHOD - Electric potential mapping and electrode attachment device comprises: a main cylinder; a center piece having a center piece passage for receiving a catheter with its electrode running from a center piece net to a center piece outlet; a cylinder cap for closing main cylinder; a second cylinder which fits inside of and is allowed to rotate relative to main cylinder; and at least two electromechanical connections used to connect the device to at least two connectors on an electrode lead, where the device facilitates rotation and movement of each connector relative to the other while retaining continuous electrical connection with heart tissue or other body cavity tissue. A laparoscopic device is attached to electric potential mapping and electrode attachment device. Electric potential mapping and electrode attachment device is capable of continuously recording electrical potentials of a heart cavity or other body cavity during full rotation of collars, connectors, or connections on the laparoscopic device and is capable continuously recording electrical signals during HIS bundle mapping, pacemaker electrode anchoring, post anchoring, pacemaker programming, and afterwards. The invention provides a means for retaining continuous electrical signal connections with the electrode from mapping, electrode attachment, to pacemaker control unit programming, without interruption of the electrical signals.01-19-2012
20120116213ORIENTATION DETERMINATION OF A MEDICAL DEVICE WITHIN A PATIENT - Devices and methods for assessing the orientation and shape of vessel lumens and hollow portions of organs are described. The devices and methods are particularly adapted for determining the orientation and shape of a lumen to, for example, perform a valvuloplasty or facilitate the later implantation of a prosthetic heart valve. The devices are typically catheter-based having an expandable member fixed to a distal end of the catheter. Located within the expandable member are materials of different densities wherein the materials of different densities cooperate to indicate the orientation of the device within a lumen. The methods typically comprise deploying the balloon percutaneously to a target location, expanding the balloon, and determining the orientation and shape of a lumen.05-10-2012
20100222668GUIDANCE AND IMPLANTATION OF CATHETERS - A catheter system adapted for navigating, guiding and implanting a catheter or a plurality of catheters in a spatially-defined implantation within the tissue of a patient is provided. The system can include a tissue navigation system and a probe to inform the navigation system to guide emplacement of the catheters within a target tissue. The probe can provide images, such as fiberoptic visual images, or ultrasound images, or can provide radiolocation data, to guide the catheter emplacement. The catheters supply a pressurized liquid including a bioactive agent, such as can be used in the treatment of cancer, for example 123I- or 125I-IUDR. The system and methods provided can be used in the treatment of locally advanced tumors, such as cancers of the brain, head or neck, esophagus, prostate, ovary, liver, pancreas, bladder or rectum.09-02-2010
20120059249Navigation System for Cardiac Therapies - An image guided navigation system for navigating a region of a subject includes an imaging device, a tracking device, a controller, and a display. The imaging device generates images of the region of the subject. The tracking device tracks the location of the instrument in the subject. The controller superimposes an icon representative of the instrument onto the images generated from the imaging device based upon the tracked location of the instrument. The display displays the image with the superimposed instrument.03-08-2012
20120059248APPARATUS AND METHOD FOR AIRWAY REGISTRATION AND NAVIGATION - A surgical instrument navigation system is provided that visually simulates a virtual volumetric scene of a body cavity of a patient from a point of view of a surgical instrument residing in the cavity of the patient. The surgical instrument navigation system includes: a surgical instrument; an imaging device which is operable to capture scan data representative of an internal region of interest within a given patient; a tracking subsystem that employs electro-magnetic sensing to capture in real-time position data indicative of the position of the surgical instrument; a data processor which is operable to render a volumetric, perspective image of the internal region of interest from a point of view of the surgical instrument; and a display which is operable to display the volumetric perspective image of the patient.03-08-2012
20120059251RE-CALIBRATION OF PRE-RECORDED IMAGES DURING INTERVENTIONS USING A NEEDLE DEVICE - Re-calibration of pre-recorded images during interventions is proposed, utilizing an interventional system comprising an imaging device providing images of an object, a needle device, and a processing device. The needle device comprises a sensor for providing data corresponding to tissue properties. The processing device is adapted to perform an overlay registration of pre-recorded images and live images provided by the imaging device, utilizing the data from the sensor. Thus, the accuracy of an overlay of images is increased.03-08-2012
20120130231MAGNETIC NAVIGATION ENABLED DELIVERY TOOLS AND METHODS OF MAKING AND USING SUCH TOOLS - Disclosed herein is a magnetic navigation enabled tool configured for the delivery of an implantable medical lead. The tool includes a tubular body, a sensor and a conductor. The tubular body includes a distal end, a proximal end, an inner layer including an outer circumferential surface, a lumen inward of the inner layer, and an outer layer over the outer circumferential surface of the inner layer. The sensor is on the tubular body near the distal end. The conductor extends from the sensor coil towards the proximal end imbedded in the inner layer.05-24-2012
20120209107METHOD AND APPARATUS FOR ENHANCING NEEDLE VISUALIZATION IN ULTRASOUND IMAGING - A method of enhancing needle visualization in ultrasound imaging is provided. The method includes reducing overall gain in needle frames, and applying a nonlinear mapping to the needle frames, wherein the nonlinear mapping is configured to make strong signals stronger and make weak signals weaker after mapping.08-16-2012
20110092811SYRINGE NEEDLE GUIDING APPARATUS - Provided is a syringe needle guiding apparatus 04-21-2011
20110092810NESTED CANNULAE FOR MINIMALLY INVASIVE SURGERY - The present disclosure provides for systems and methods for Nested Cannula configuration. Nested Cannula systems include a plurality of telescoping, pre-shaped tubes configured and dimensioned to reach target locations within a particular anatomical region. A three dimensional image is read for the particular anatomical region and structure in question. A series of arcs are generated between a point of the anatomical region and a target location, ensuring collision-free motion for each of the tubes at each specific diameter. The target location is determined based upon the medical procedure being performed and the location and orientation in six degrees of freedom of the anatomical structure in question. The series of arcs are used to configure and dimension the plurality of tubes. The Nested Cannula system is adapted to reach relatively small and complex target locations, such as to deliver photodynamic therapy, balloon angioplasty or BronchoAlveolar Lavage.04-21-2011
20110092808METHOD FOR ACQUIRING HIGH DENSITY MAPPING DATA WITH A CATHETER GUIDANCE SYSTEM - The invention is a method of rotating a catheter while it is manually guided in order to increase the volume of space it passes through during a geometric mapping procedure as to provide a higher and more uniform location data point cloud density in a volumetric mapping system.04-21-2011
20120157826Method for the Remote Detection of Wound Interface Materials Inside the Body - Methods and apparatuses of detecting wound interface materials in a wound are provided. In particular, a metal detector may be used to detect parts of a metallic negative pressure manifold used in combination with negative pressure wound therapy.06-21-2012
20120157825Navigational Reference Dislodgement Detection Method and System - A method of detecting dislodgement of a navigational reference for a localization system includes securing a reference catheter, including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter, and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter to its initial location.06-21-2012
20120071753APPARATUS AND METHOD FOR FOUR DIMENSIONAL SOFT TISSUE NAVIGATION INCLUDING ENDOSCOPIC MAPPING - A surgical instrument navigation system is provided that visually simulates a virtual volumetric scene of a body cavity of a patient from a point of view of a surgical instrument residing in the cavity of the patient. The surgical instrument navigation system includes: a surgical instrument; an imaging device which is operable to capture scan data representative of an internal region of interest within a given patient; a tracking subsystem that employs electro-magnetic sensing to capture in real-time position data indicative of the position of the surgical instrument; a data processor which is operable to render a volumetric, perspective image of the internal region of interest from a point of view of the surgical instrument; and a display which is operable to display the volumetric perspective image of the patient.03-22-2012
20110004095Intravenous Pacemaker Electrode - An intravenous pacemaker electrode comprises an electrode cable comprising a line, a duct and an insulating sleeve as well as an electrode head attached to the distal end of the line in order to transmit stimulation pulses, with an ultrasound catheter being moveable in the duct, and comprising a thread-like guide element as well as an ultrasound measurement element attached to its distal end.01-06-2011
20090275823CANNULA INSERTING SYSTEM - The present invention provides a highly automated puncture system for inserting a cannula or a needle into a blood vessel of a person or an animal. The puncture system has an acquisition module that allows for determining at least one location of a blood vessel underneath the surface of a skin and that is further enabled to determine an optimal puncture location that is well suitable for inserting a cannula into the blood vessel. Further, the puncture system has an actuator for moving and aligning the cannula to a determined position. The system is further adapted to autonomously insert the cannula into the blood vessel for multiple purposes, such as blood withdrawal, venous medication and infusions.11-05-2009
20100121181Method and System for Guidewire Tracking in Fluoroscopic Image Sequences - A method and system for tracking a guidewire in a fluoroscopic image sequence is disclosed. In order to track a guidewire in a fluoroscopic image sequence, guidewire segments are detected in each frame of the fluoroscopic image sequence. The guidewire in each frame of the fluoroscopic image sequence is then detected by rigidly tracking the guidewire from a previous frame of the fluoroscopic image sequence based on the detected guidewire segments in the current frame. The guidewire is then non-rigidly deformed in each frame based on the guidewire position in the previous frame.05-13-2010
20110077507Method and apparatus for locating the fossa ovalis, creating a virtual fossa ovalis and performing transseptal puncture - Apparatus is provided of locating the fossa ovalis in a patient by locating at least one of the His bundle, the plane of the interatrial septum, and the coronary sinus ostium in a patient, and thereafter locating the fossa ovalis on the basis of one or more predetermined distances between these locations. Software is also provided that can determine and display the location of the fossa ovalis in a patient based on predetermined distances between the locations. Such software can for example be provided within an electroanatomical system. Methods of determining the location of the fossa ovalis, performed by either a clinician or a central processing unit-controlled surgical system, are also provided and determined using predetermined measurements from defined locations. An apparatus for locating the fossa ovalis and performing a transseptal puncture is also provided.03-31-2011
20100179417MEDICAL TUBE SYSTEM WITH POSITION SENSING - A system including a position-sensing medical tube and sensor electronics is provided in accordance with an embodiment of the present invention. The position-sensing medical tube comprises a medical tube and position-sensor apparatus coupled to the medical tube in a predetermined location. The position-sensor apparatus is adapted to communicate with the sensor electronics so as to provide information dependent on the relative position of the medical tube. Movement of the medical tube, and thus the coupled position-sensor apparatus is sensed by the sensor electronics. The sensor electronics interprets state-data as that the medical tube has moved and responds in a predetermined way, such as, but not limited to, triggering an alarm and turning off a process.07-15-2010
20110066029Electromagnetic Medical Device - An insertable or implantable medical device includes an elongated member having a proximal end, a distal end, at least one conductive coil near the distal end, and electrical conductors which carry current from the coil towards the proximal end. The coil surrounds or is surrounded by a flexible magnetic polymeric composite.03-17-2011
20110105893TISSUE TRACKING ASSEMBLY AND METHOD - A tissue tracking assembly and method is disclosed herewith. The tissue tracking assembly comprises: a flexible probe with a proximal end and distal end, the proximal end incorporates an electric connector and the distal end incorporates at least one trackable sensor. A delivery system is provided in association with the flexible probe to accurately embed the flexible probe within a tissue. The delivery system is configured to be attached to the flexible probe during insertion of probe within the tissue and detaches from the flexible probe after embedding the probe within the tissue.05-05-2011
20120123251DETECTION OF THE POSITION OF A MOVING OBJECT AND TREATMENT METHOD - The invention relates to a method for determining the position of an object moving within a body, wherein the body is connected to markers, a movement signal is determined based on the measured movement of the markers, images are taken from the object using a camera or detector, wherein the camera or detector is moved with respect to the object, it is determined from which direction or range of angles or segment the most images corresponding to a pre-defined cycle of the movement signal are taken, and using at least some or all of the images of the segment containing the most images for a specified movement cycle, an image of the object is reconstructed.05-17-2012
20120123250Method and System for Pigtail Catheter Motion Prediction - A method and system for autoregressive model based pigtail catheter motion prediction in a fluoroscopic image sequence is disclosed. Parameters of an autoregressive model are estimated based on observed pigtail catheter tip positions in a plurality of previous frames of a fluoroscopic image sequence. A pigtail catheter tip position in a current frame of the fluoroscopic image sequence is predicted using the fitted autoregressive model. The predicted pigtail catheter tip position can be used to constrain pigtail catheter tip detection in the current frame. The predicted pigtail catheter tip position may also be used to predict abnormal motion in the fluoroscopic image sequence.05-17-2012
20120123249PROVIDING AN OPTIMAL ULTRASOUND IMAGE FOR INTERVENTIONAL TREATMENT IN A MEDICAL SYSTEM - Embodiments for providing an optimal ultrasound image for interventional treatment in a medical system are disclosed. In one embodiment, by way of non-limiting example, a medical system comprises: a medical device that is inserted into a target object and configured to remove a lesion within the target object; an ultrasound data acquisition unit configured to transmit and receive ultrasound signals to and from the target object to output ultrasound data; and a processing unit in communication with the ultrasound data acquisition unit, the processing unit being configured to forma plurality of ultrasound images based on the ultrasound data and perform an image processing upon each of the ultrasound images to detect a position of the medical device.05-17-2012
20100094125SYSTEM AND METHOD FOR 3-D IMAGING - A system and method for recording and depicting ultrasound images of a moving object are disclosed. In a preferred embodiment, ultrasound images are acquired as the field of view of an ultrasound probe is advanced across the tissues of interest during a resting period between periods of relatively large-scale heart cycle motion. A series of images acquired during a particular resting period may be represented as a three-dimensional volume image, and the comparison of volume images from adjacent cardiac resting periods enables three-dimensional volume image modulation analysis which may be presented for a user as a moving volume image of the objects of interest within the field of view.04-15-2010
20100094124COMBINING X-RAY WITH INTRAVASCULARLY ACQUIRED DATA - A system for estimating a position in an x-ray projection image. The position corresponds to a projected probe position of an intravascular probe at a time of acquiring data from the intravascular probe. Marker detector for identifying in the x-ray projection image a plurality of projected positions of markers (04-15-2010
20090131784SYSTEM AND METHOD OF IN-VIVO MAGNETIC POSITION DETERMINATION - Systems and methods for position detection of a in-vivo sensing device. A magnetic field generator generates magnetic fields which are measured by an antenna. The position of the in-vivo sensing device is determined from the magnetic field intensity values.05-21-2009
20120165660SYSTEM AND METHOD FOR ELECTROMAGNETIC NAVIGATION IN THE VICNITY OF A METAL OBJECT - A system and method for performing object localization based on the emission of electromagnetic fields. The electromagnetic fields are simultaneously emitted from different transmitters. One electromagnetic field is emitted at a base frequency; the remaining waves are emitted at frequencies that are harmonics of the base frequency. The composite magnetic fields are measured by sensors. The signal generated by each sensor is subject to a Fourier analysis to determine the strengths of the individual electromagnetic fields forming the composite electromagnetic field. These individual measure field strength data are then used to determine the position and orientation of the sensors relative to the transmitters.06-28-2012
20120165659RADIOPAQUE IMPLANT - In some embodiments, an implant includes a substrate and a radiopaque portion. The radiopaque portion is coupled to the substrate. The radiopaque portion has a first portion extending along a first axis and a second portion extending along a second axis different than the first axis. In some embodiments, the substrate has a perimeter that defines a shape having a first size. The radiopaque portion forms a shape having a second size. The shaped formed by the radiopaque portion is substantially the same as the shape defined by the perimeter of the substrate. The first size is greater than the second size.06-28-2012
20120165658SYSTEM, ARTICLE OF MANUFACTURE, AND METHOD FOR CHARACTERIZING A MEDICAL DEVICE AND/OR ONE OR MORE SENSORS MOUNTED THEREON - Systems and methods for characterizing a medical device and/or the sensors thereof are provided. A system comprises an electronic control unit (ECU) configured to acquire first and second configurations of the device. The ECU is configured to process the configurations to calculate an index used to characterize the device and/or the sensors thereof. An article of manufacture comprises a computer-readable storage medium having a computer program encoded thereon for characterizing the device and/or the sensor thereof. The program includes code for acquiring first and second configurations of the device, and processing them together to calculate an index used to characterize the device and/or the sensors thereof. A method for characterizing the device and/or the sensors thereof comprises providing an ECU, acquiring, by the ECU, first and second configurations of the device, and processing them together to calculate an index used to characterize the device and/or the sensors thereof.06-28-2012
20120165657HYBRID TRACKING SYSTEM UTILIZING COMBINED LED AND MAGNETORESISTANCE SENSORS - A hybrid tracking system utilizing at least one combined light emitting diode (LED) and magnetoresistance sensor. The hybrid tracking system includes optical tracking technology and electromagnetic (EM) tracking technology with at least one combined LED and magnetoresistance reference sensor attached to a fixed object, at least one combined LED and magnetoresistance sensor attached to an object being tracked, and a processor coupled to the at least one combined LED and magnetoresistance reference sensor and the at least one combined LED and magnetoresistance sensor for processing signals from the at least one combined LED and magnetoresistance reference sensor and the at least one combined LED and magnetoresistance sensor. The combined LED and magnetoresistance sensor includes at least one magnetoresistance sensor and at least one LED that are integrated into a single package.06-28-2012
20120165656COMPENSATION FOR MAGNETIC DISTURBANCE DUE TO FLUOROSCOPE - A method, consisting of generating, using a plurality of magnetic transmitters, a magnetic field in a region and introducing a field perturbing element into the region. The method includes characterizing multiple images of each magnetic transmitter in the field perturbing element, and calculating a reaction magnetic field in the region based on the characterized images. The method further includes positioning a probe in the region and measuring a perturbed magnetic field at the probe, and determining a location of the probe in response to the measured perturbed magnetic field and the calculated reaction magnetic field.06-28-2012
20120316433GUIDE WIRE AND CATHETER ASSEMBLY - A guide wire includes an elongated main body possessing flexibility. The main boy is comprised of a first wire having a core member constituted by a metal material, a second wire having a core member arranged on the proximal side of the first wire and constituted by a metal material, and an optically transmissive member arranged between the first wire and the second wire, and connecting the first and second wires to each other and constituted by a substantially transparent tube shaped body. The optically transmissive member exhibits light permeability such that when light is illuminated from one direction of a lateral side thereof, the light is transmissible to the opposite side through the center axis of the main body.12-13-2012
20120220860Combination of Electromagnetic and Electropotential Localization - A navigation system or combination of navigation systems can be used to provide two or more types of navigation or modalities of navigation to navigate a single instrument. The single instrument can be positioned within the patient and tracked. For example, both an Electromagnetic (EM) and Electropotential (EP) navigation system can be used to navigate an instrument within a patient.08-30-2012
20120220859BONE AND TOOL TRACKING WITH MEMS IN COMPUTER-ASSISTED SURGERY - A method tracks a tool with respect to a bone in computer-assisted surgery. A reference tracker with a MEMS unit is secured to the bone. The tracker outputs data relating to its orientation. A tool provided with a MEMS unit and secured to the bone is preset with an initial orientation. The tool outputs tracking data related to orientation of the tool once initialized. A trackable frame of reference relating the bone to the orientation of the tracker is created. The MEMS unit of the tool is initialized. A relation between the initial orientation of the tool and the orientation of the tracker at initialization of the MEMS unit of the tool is recorded. Orientational data of the tool relative to the frame of reference of the bone calculated using the relation is displayed. A computer-assisted surgery system for tracking a tool with respect to a bone after an initialization of a MEMS unit is also described.08-30-2012
20120130233ULTRASOUND CATHETER HAVING PROTECTIVE FEATURE AGAINST BREAKAGE - An ultrasound catheter has an elongate flexible catheter body having a lumen extending longitudinally therethrough, and an ultrasound transmission member extending longitudinally through the lumen of the catheter body. The ultrasound transmission member has a proximal end that is coupled to a separate ultrasound generating device, and a distal end that terminates at the distal end of the catheter body, with at least a portion of the distal end of the ultrasound transmission member extending outside the lumen of the catheter body and beyond the distal end of the catheter body, and with the ultrasound transmission member directly attached to the catheter body via an attachment device.05-24-2012
20120316432OPTICAL FIBER INSTRUMENT SYSTEM FOR DETECTING TWIST OF ELONGATED INSTRUMENTS - An instrument system that includes an elongate body and an optical fiber is provided. The elongate body has a longitudinal axis and capable of being twisted about the longitudinal axis. The optical fiber is operatively coupled with the elongate body and having a strain sensor provided thereon. The strain sensor is configured to indicate twist of the elongate body.12-13-2012
20120316431METHOD FOR ACQUIRING HIGH DENSITY MAPPING DATA WITH A CATHETER GUIDANCE SYSTEM - The invention is a method of rotating a catheter while it is manually guided in order to increase the volume of space it passes through during a geometric mapping procedure as to provide a higher and more uniform location data point cloud density in a volumetric mapping system.12-13-2012
20120215095X-Ray radiation reduction system - By exposing the ROI at full exposure and full frame rate while exposing the area outside the ROI with low exposure and up to full frame rate an overall reduction in X-Ray radiation is achieved. The resultant image has slightly lower resolution outside the ROI but better resolution (as compared to standard fluoroscopy practices) in the ROI because of reduced scattering. Different exposures are supplied to different parts of the image by using a fast shutter in conjunction with the exposure control.08-23-2012
20120215096SYSTEMS & METHODS FOR PLANNING AND PERFORMING PERCUTANEOUS NEEDLE PROCEDURES - A system and method for planning volumetric treatment by percutaneous needle procedures obtains a volumetric image data set of a subject including an identifiable region requiring treatment. An effective treatment volume is defined relative to the needle position for at least one needle carrying a treatment applicator. One or more proposed inserted needle position is defined such that a effective treatment volume corresponding to the one or more proposed inserted needle position provides coverage of the region requiring treatment. The effective treatment volume for one or more needles can then be visualized in the context of slices of 3D image data. One or more entry point and corresponding virtual target are then defined relative to a frame of reference of the volumetric image data set for use in navigation of the at least one needle to the corresponding proposed inserted needle position.08-23-2012
20100204567ULTRASOUND-GUIDED DELIVERY OF A THERAPY DELIVERY DEVICE TO A PHRENIC NERVE - A method for guiding a therapy delivery device to a phrenic nerve of a subject includes: (a) selecting a target portion of the phrenic nerve; (b) using ultrasound imaging to obtain an ultrasound image of anatomical structures relevant to the target portion; (c) determining an implantation pathway based on the ultrasound image, the implantation pathway defining a trajectory that avoids the relevant anatomical structures and extends between an insertion point on the skin of the subject and the target portion; (d) inserting an introducer into the insertion point, the introducer including a bevel located at a distal end thereof; (e) navigating the introducer through the implantation pathway until the distal tip is positioned adjacent or proximate to the target portion; and (f) advancing the therapy delivery device through the introducer to the target portion of the phrenic nerve. Steps (d)-(f) are performed using real-time ultrasound imaging.08-12-2010
20100204568ULTRASOUND-GUIDED DELIVERY OF A THERAPY DELIVERY DEVICE TO A NERVE TARGET - A method for guiding a therapy delivery device to a sympathetic nerve chain target of a subject includes: (a) selecting a sympathetic nerve chain target; (b) using ultrasound imaging to obtain an ultrasound image of anatomical structures relevant to the sympathetic nerve chain target; (c) determining an implantation pathway based on the ultrasound image, the implantation pathway defining a trajectory that avoids the relevant anatomical structures and extends between an insertion point on the skin of the subject and a bony spinous target; (d) inserting an introducer into the insertion point, the introducer including a bevel located at a distal end thereof; (e) navigating the introducer through the implantation pathway until the distal tip is positioned adjacent or proximate to the bony spinous target; and (f) advancing the therapy delivery device through the introducer to the sympathetic nerve chain target. Steps (d)-(f) are performed using real-time ultrasound imaging.08-12-2010
20100204565Microdialysis Catheter and a Method of Making a Microdialysis Catheter - The invention relates to a microdialysis catheter comprising a multilumen tube (08-12-2010
20100204566MEDICAL DEVICE GUIDING SYSTEM, MEDICAL DEVICE GUIDING METHOD, AND METHOD FOR CREATING LOOK-UP TABLE TO BE USED IN MEDICAL DEVICE GUIDING SYSTEM - The accurate position detection without being affected by an unnecessary second magnetic field can be realized by calculating the unnecessary second magnetic field induced and generated at positions of magnetic field sensors by a guiding coil arranged around the position detection area of the medical device due to an action of a first magnetic field generated by a magnetic field generator, at the time of position detection, and the second magnetic field is subtracted from the first magnetic field detected by the magnetic field sensors to calculate corrected magnetic-field information. Further, LUTs that store beforehand numerical information having a correlation with the second magnetic field induced and generated at the positions of magnetic field sensors are used to calculate the second magnetic field, thereby enabling to reduce an amount of calculation performed each time and realize high speed processing.08-12-2010
20100204569SYSTEM FOR PLACEMENT OF A CATHETER INCLUDING A SIGNAL-GENERATING STYLET - An integrated catheter placement system for accurately placing a catheter within a patient's vasculature is disclosed. In one embodiment, the integrated system comprises a system console, a tip location sensor unit for temporary placement on the patient's chest, and an ultrasound probe. The tip location sensor senses a field produced by a stylet disposed in a lumen of the catheter when the catheter is disposed in the vasculature. The ultrasound probe ultrasonically images a portion of the vasculature prior to introduction of the catheter. ECG signal-based catheter tip guidance is included to enable guidance of the catheter tip to a desired position with respect to a node of the patient's heart. The stylet includes an electromagnetic coil that can be operably connected to the sensor unit and/or console through a sterile barrier without compromising the barrier. The stylet can also be wirelessly connected to the sensor unit and/or console.08-12-2010
20100204564AccuPort Locator - To avoid exposing medical personnel to frequent radiation during patient treatment, a radiopaque indicator is used to locate catheters or similar subcutaneous ports and devices. An attached extension rod allows the medical personnel to remain farther outside a fluoroscope's radiated area, but still manipulate the indicator. Because it is radiopaque, personnel can see its position relative to a patient's extra corporal port on a fluoroscope, fix the position precisely, make the puncture and adjustment and then address the patient's medical needs after completing the barium swallow or other medical treatment.08-12-2010
20120136242ENDOVASCULAR NAVIGATION SYSTEM AND METHOD - An endovascular navigation and positioning system including a transducer on a distal end of an endovascular instrument, a control system connected to the transducer, the control system being configured to generate and receive at least one acoustic signal using the transducer, a pre-processor containing computer-readable instructions for manipulating the acoustic signal input to extract information related to desired parameters, a processor configured to evaluate the parameters to generate an output related to guidance of the instrument, and an output device for displaying an indication of the output generated by the processor. The processor may evaluate the information using artificial intelligence including inference rules related to navigation state, comparisons to information in a database, and probabilities, among others. The system may use an electrical signal as a confirmation input. Further disclosed is a method of navigating and positioning an endovascular device in a vasculature.05-31-2012
20110184276APPARATUS AND METHOD FOR AUTOMATIC IMAGE GUIDED ACCURACY VERIFICATION - A method includes receiving during a first time interval associated with a path of motion of a dynamic body, image data associated with a plurality of images of the dynamic body. The plurality of images include an indication of a position of a first marker coupled to a garment at a first location, and a position of a second marker coupled to the garment at a second location. The garment is coupled to the dynamic body. During a second time interval, an image from the plurality of images is automatically identified that includes a position of the first marker that is substantially the same as a position of a first localization element relative to the dynamic body and a position of the second marker that is substantially the same as a position of the second localization element relative to the dynamic body.07-28-2011
20110184275Method for Operating a Computer System for Supporting an Insertion of a Guide Wire into Body Tissue and Associated Arrangement - A method for operating a computer system for supporting an insertion of a guide wire into body tissue is proposed. An interventional procedure is prepared for by the insertion of the guide wire into body tissue. The guide wire is fitted with sensors. The latter's signals are received using the proposed method, so that a comparison of actual values with target values is possible and a future target direction of movement can be derived.07-28-2011
20100174177MAGNETICALLY GUIDED CATHETER - A catheter comprising a flexible tubing having a proximal end and a distal end. An electrode assembly is attached to the distal end of the flexible tubing. The electrode assembly includes an electrically conductive tip electrode and a coupler which is connected between the tip electrode and the distal end of the flexible tubing. The coupler and the tip electrode are coupled by an interlocking connection. A first magnet is at least partially housed in the coupler. A fluid lumen extends through the flexible tubing to the coupler. The fluid lumen extends completely through the first magnet and connects to at least one port formed in the electrode assembly. A second magnet is spaced from the electrode assembly along a longitudinal axis of the tubing. The first magnet and the second magnet are responsive to an external magnetic field to selectively position and guide the electrode assembly within a body of a patient.07-08-2010
20100174176MEDICAL AUXILIARY INSTRUMENT FOR INTRODUCTION INTO THE BODY OF A PATIENT - A medical auxiliary instrument for introduction into the body of a patient, the use of such an auxiliary instrument, to a positioning system for percutaneous interventions, and a method for determining a reference position for such a positioning system. To permit a particularly safe minimally invasive percutaneous intervention, especially in the area of the spinal column, a medical auxiliary instrument for introduction into the body of a patient has a tube and a trocar element arranged in the tube. The trocar element has at least one marking element which is designed to determine its position with the aid of a contactless locating method. The tube, at its one end, has a securing device for forming a releasable mechanical connection to a tissue part; of the patient in such a way that, when the connection to the tissue part is established, the position of the marking element serves as a reference marker for a positioning system for percutaneous interventions.07-08-2010
20120083689LIGHT-GUIDED TRANSLUMINAL CATHETER - Generally, the present invention is directed to a light-guided catheter for direct visualization of placement through the skin. An embodiment of the invention includes a method for transcutaneous viewing and guiding of intracorporeal catheters into a body that comprises inserting a catheter into the body having at least one lumen and internally illuminating the catheter with light capable of propagating through the blood and tissue to an external viewer outside of the body.04-05-2012
20120172714BRAID WITH INTEGRATED SIGNAL CONDUCTORS - A method, including incorporating a conducting wire into a tubular braid consisting of a multiplicity of supporting wires, and covering the tubular braid with a sheath. The method further includes identifying a location of the conducting wire within the tubular braid and attaching an electrode through the sheath to the conducting wire at the location.07-05-2012
20120172715SYSTEM FOR DETERMINING THE POSITION OF A MEDICAL DEVICE WITHIN A BODY - A system for determining a position of a medical device within a body is provided that reduces positional error by establishing a reference origin closer to the device and/or simplifies the system by integrating components and functions. In one embodiment, a pair of drive electrodes are affixed to opposed surfaces of the body and create a pathway for transmission of current through a position sensor related to the medical device. A pair of reference electrodes proximate the drive electrodes are coupled to a common reference node outputting a reference signal establishing the reference origin. An electronic control unit determines the position of the medical device responsive to the position signal and the reference signal. In another embodiment, a patch affixed to an external surface of the body has a base layer and multiple devices supported on the base layer, electrically isolated from one another, and configured to perform different functions.07-05-2012
20100049034DEVICE AND METHOD FOR DISPLAYING ULTRASOUND IMAGES OF A VESSEL - The invention relates to a device and a method for displaying a vessel (02-25-2010
20100298695System and Method for Cardiac Lead Placement - A system and method for determining a location of a cardiac lead within an anatomy is provided. The system can include a cardiac lead for insertion into an anatomy, which can define at least one conduit. The system can include a confirmation member that can be positionable within the at least one conduit and movable relative to the cardiac lead. The system can include at least one tracking device, which can be coupled to the confirmation member, and a tracking system that can track a position of the at least one tracking device relative to the anatomy. The system can include a navigation system that determines a position of the confirmation member relative to the anatomy based on the position of the at least one tracking device. The navigation system can also determine a position of the cardiac lead within the anatomy based on the position of the confirmation member.11-25-2010
20120226144SYSTEM AND METHOD FOR FEEDING TUBE PLACEMENT - A system and method for monitoring the placement of a feeding tube in the jejunum of a patient includes a system comprising a feeding tube and a tubular member received in a passageway extending through the feeding tube. The tubular member is sized relative to the feeding tube such that an echogenic distal length of the tubular member extends distal to the open distal end of the feeding tube. The distal end of the assembly is advanced into the small intestine of the patient, and a negative pressure is drawn through an opening in the distal length of the tubular member to draw the tubular member distal length into juxtaposition with a wall of the small intestine. The position of the assembly in the small intestine may be observed in real time via ultrasound visualization of the echogenic portion.09-06-2012
20100274122APPARATUS AND METHOD FOR MONITORING THE POSITION OF AN ORTHOPAEDIC PROSTHESIS - A system, apparatus, and method for determining a position of an orthopaedic prosthesis includes a patient support platform, a sensor array coupled to the patient support platform, and a controller electrically coupled to the sensor array. The sensor array is configured to generate data signals in response to an output signal of a signal source(s) coupled to the orthopaedic prosthesis and/or a bone of the patient. The controller is configured to determine a position of the orthopaedic prosthesis and/or the bone of the patient based on the data signals.10-28-2010
20100010339METHOD AND DEVICE FOR EASY ACCESS TO SUBINTIMALLY IMPLANTED VASCULAR ACCESS PORTS - The present invention relates to a novel vascular access port for administering chemotherapeutics and the like that are subintimally implanted and attached to the fascia. By inclusion of one or more UV fluorescing polymers in the port a healthcare worker can shine a UV light in the area of the port and use the fluorescing polymer to find the injection site.01-14-2010
20100010338Implantable Medical Device Orientation Detection Utilizing an External Magnet and a 3D Accelerometer Sensor - A method and device for detecting the implanted orientation of an implantable medical device (IMD) in a patient. IMD includes an accelerometer for measuring acceleration signals in three orthogonal directional axes. A y-axis orientation of IMD is determined from the measured accelerometer signals using a gravitational force analysis. IMD includes a magnetic sensor that senses a varying magnetic field exerted on the magnetic sensor from an external magnet moved along a medial-lateral direction with respect to IMD. The z-axis orientation of IMD is determined from the location of the external magnet where the magnetic field exerted on the magnetic sensor is greatest. Based on a known relationship between the accelerometer and magnetic sensor, an orthogonal transformation calculation is performed on the y-axis and z-axis orientations to yield the x-axis orientation. The implanted orientation of IMD with respect to the patient is thus known and used to compensate accelerometer measurements.01-14-2010
20120253182IMAGING-GUIDED ANESTHETIC INJECTION METHOD - Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.10-04-2012
20120316430RADIOLUCENT SURGICAL INSTRUMENTS - A radiolucent surgical instrument comprising an internal stiffener composed of a first composite material having a first modulus and an overmold component formed around at least a portion of the internal stiffener and composed of a second composite material having a second modulus. The first modulus may be greater than the second modulus. The overmold component may be formed around the internal stiffener via injection molding. The internal stiffener may be a structural laminate fabricated by composite ply lay-up and cure and may have a bending stiffness between approximately 10 MSI and 16 MSI. The overmold component may be a short fiber reinforced thermoplastic form and may have a non-uniform distribution of thickness. The surgical instrument may include, for example, retractors, forceps, elevators, dissectors, suction tubes, drill guides, or separators.12-13-2012
20120259208Catheter Systems and Methods of Use - A catheter system can include a first catheter including a first proximal end portion and a lumen. The first proximal end portion has a first key joint component that extends along a partial length of the first proximal end portion. The catheter system can also include a second catheter including a second key joint component that corresponds with the first key joint component. The first key joint component and the second key joint component are configured to be coupled together when the second catheter is slidably disposed within the lumen of the first catheter such that a rotational orientation of the second catheter is fixed relative to a rotational orientation of the first catheter. The first proximal end portion can be a fitting, and the first key joint component can include an opening defined by the fitting.10-11-2012
20120259206Catheter Systems and Methods of Use - A catheter system can include a first catheter having an elongated body that defines a lumen, and a second catheter slidably disposed within the lumen of the first catheter. The second catheter can include an acoustic device. The acoustic device can create a sound for verifying the location of the second catheter within a body lumen. The distal end portion of the second catheter can include a pre-formed bend that extends at a non-zero angle relative to a longitudinal axis of the first catheter. In some embodiments, the second catheter can be used to aspirate a substance from a body lumen.10-11-2012
20120259207Securing a Marker Wire - An apparatus for securing a marker wire relative to a lumen includes a hub to which the marker wire is secured. The hub includes a feature that secures the hub to an outer surface of the lumen. For example, the hub may include a base member secured to the marker wire and a separate fastener member which secures the hub to an outer surface of a lumen, where the base member includes a split tube segment that receives the lumen within an inner cylindrical opening. Alternatively, the hub may include a cylindrical slide lock collar member with a split tubular extension that receives the lumen within an inner cylindrical opening. Locking features may be included to help fix the two pieces of the hub in position relative to each other.10-11-2012
20120190969IMPLANTABLE CARDIAC DEVICES AND METHODS - Embodiments relate to an implantable cardiac system, including a housing, electronic circuitry for controlling one or more of power management, processing unit, information memory and management circuit, sensing and simulation output. The system also includes diagnosis and treatment software for diagnosing health issues, diagnosing mechanical issues, determining therapy output and manage patient health indicators over time, a power supply system including at least one rechargeable battery, a recharging system, an alarm (or alert) system to inform patient of energy level and integrity of system, communication circuitry, one or more electrodes for delivering therapeutic signal to a heart and one or more electrodes for from delivering electrocardiogram signal from the heart to the electronic circuitry. The power sources can include rechargeable batteries. The housing can include receptacles that receive a probe that mechanically and electrically connects to circuitry to recharge the device and receive data from the device.07-26-2012
20120259210ULTRASOUND GUIDED POSITIONING OF CARDIAC REPLACEMENT VALVES WITH 3D VISUALIZATION - A device (e.g., a valve) can be visualized in a patient's body (e.g., in the patient's heart) using an ultrasound system with added position sensors. One position sensor is mounted in the ultrasound probe, and another position sensor is mounted in the device installation apparatus. The device's position with respect to the imaging plane is determined based on the detected positions of the position sensors and known geometric relationships. A representation of the device and the imaging plane, as viewed from a first perspective, is displayed. The perspective is varied to a second perspective, and a representation of the device and the imaging plane, as viewed from the second perspective, is displayed. Displaying the device and the imaging plane from different perspectives helps the user visualize where the device is with respect to the relevant anatomy.10-11-2012
20120259211SYSTEMS, DEVICES, AND METHODS EMPLOYING FIBER OPTIC SHAPE TRACKING - The present invention provides systems, devices, and methods employing fiber optic shape and position tracking. The systems, devices, and methods permit measurement of and continuous tracking of the shape and position of objects whose shape dynamically changes with time. Applications include tracking and monitoring of endoscopes for diagnostic and surgical procedures.10-11-2012
20090018434POSITION DETECTION APPARATUS AND MEDICAL-DEVICE-POSITION DETECTION SYSTEM - A position detection apparatus and a medical-device-position detection system that have improved position detection accuracy are provided by setting high amplification for the position detection apparatus. The position detection apparatus includes a circuit that has at least one embedded coil (01-15-2009
20120232380HANDHELD ULTRASOUND IMAGING SYSTEMS - A handheld ultrasound device is provided, having a transducer assembly for emitting and receiving sonic signals, a configurable signal processing unit, and a data processor configured to provide configuration data to the signal processing unit. The configuration data defines a beamforming configuration, filtering configuration and envelope detection configuration for an operational mode. The operational mode may be selected by the user or may be determined based on a detected type of the transducer assembly.09-13-2012
20080300481Dynamic reference method and system for use with surgical procedures - A substrate configured for placement on an internal organ or tissue is provided. In certain embodiments, the substrate conforms to and moves with the internal organ or tissue. Three or more sensor elements are integrated on the substrate. In one implementation, the substrate and associated sensor elements provide dynamic referencing of the internal organ or tissue after registration of the sensor data with images and/or volumetric representations of the internal organ or tissue.12-04-2008
20120265055TUBULAR FEEDING DEVICE HAVING SHAPEABLE DISTAL END - A tube for insertion into a body passageway of a patient includes a generally elongated tubular member having a proximal portion, a distal portion, a lumen extending between the proximal portion and the distal portion, and at least one aperture at the distal portion sized and positioned for passage of fluid material therethrough from the lumen to a target area in the body passageway. The tubular member is structured such that the distal portion is selectively movable between the generally elongated configuration and a shaped configuration. A length of the distal portion is provided with one or more echogenic members disposed therealong such that the distal portion length is visible under ultrasound visualization when in the shaped configuration.10-18-2012
20120265057ULTRASOUND ENDOSCOPE SYSTEM AND ULTRASOUND OBSERVATION METHOD - When an ultrasound endoscope arrives at an objective area, a puncture needle is located in a scan area of a first ultrasound image. Thereby, an image of the puncture needle is delineated on the first ultrasound image. Furthermore, an ultrasound probe is inserted into the puncture needle and an ultrasound transducer of the ultrasound probe is arranged in the objective area through the puncture needle. Then, the ultrasound probe is driven and a second ultrasound image is delineated. Detailed observation inside the objective area in which the puncture needle is punctured is possible with the second ultrasound image.10-18-2012
20120265054System and Method for Registration of Multiple Navigation Systems to a Common Coordinate Frame - A method of registering two or more localization systems utilizing unique coordinate frames A and B to a common coordinate frames includes measuring position information for one or more reference locations r in each coordinate frame (e.g., A10-18-2012
20110046479SYSTEM FOR MARKING A LOCATION FOR TREATMENT WITHIN THE GASTROINTESTINAL TRACT - A device and method for mapping, diagnosing and treating the intestinal tract is provided using a capsule passing through the intestinal tract. Further, a capsule tracking system is provided for tracking a capsule's location along the length of an intestinal tract as various treatment and/or sensing modalities are employed. In one variation, an acoustic signal is used to determine the location of the capsule. A map of sensed information may be derived from the pass of a capsule. Capsules may be subsequently passed through to treat the intestinal tract at a determined location along its length. One variation uses an electrical stimulation capsule to treat and/or diagnose a condition in the intestinal tract.02-24-2011
20110046478LOCALIZATION OF A RADIOACTIVE SOURCE WITHIN A BODY OF A SUBJECT - A computerized system for locating a device including a sensor module and a processor. A radioactive source, associated with the device, produces a signal in the form of radioactive disintegrations. The sensor module includes a radiation detector capable of receiving a signal from the source attached to the device. The sensor module produces an output signal. The processor receives output signal(s) and translates output into information relating to a position of source.02-24-2011
20110046476SYSTEM AND METHOD FOR ANALYSING A SURGICAL OPERATION BY ENDOSCOPY - The invention relates to a method for analysing a surgical operation by endoscopy in an operation field in a space inside the body of an animal, characterised in that it comprises the steps of: detecting at least one tool (02-24-2011
20120323114LOCALIZATION OF A RADIOACTIVE SOURCE WITHIN A BODY OF A SUBJECT - A system and method is provided for guiding the navigation of intravascular medical tools. The system can include a display device operable to store information relating to a 3-dimensional model of a portion of vasculature of a body in a region of the body and operable to store information relating to a 3-dimensional position of a tool, where the tool is located within the portion of the vasculature of the body. In addition, the display device can be operable to display a graphical representation of the 3-dimensional model and a graphical representation of the tool visually integrated with the graphical representation of the 3-dimensional model. Furthermore, the display device can be operable to update at least the graphical representation of the tool based at least in part upon updated information relating to the 3-dimensional position of the tool.12-20-2012
20120323115OPTICAL FIBER INSTRUMENT SYSTEM FOR DYNAMIC RECALIBRATION - A method for tracking an elongate body is provided. The method includes determining a spatial relationship between an elongate body and an optical fiber, wherein the optical fiber is located in a structure having a substantially constant shape; receiving a signal from a strain sensor provided on the optical fiber; and determining, based on the signal, whether a position of the optical fiber relative to the structure has changed.12-20-2012
20120323116OPTICAL FIBER INSTRUMENT SYSTEM FOR DYNAMIC RECALIBRATION - An instrument system that includes an elongate body, an optical fiber and a controller is provided. The optical fiber is at least partially separate from the elongate body. The controller is operatively coupled to the elongate body and to the optical fiber and the controller is adapted to receive a signal from the optical fiber, detect movement of the optical fiber based on the signal; and update a position of the elongate body relative to the optical fiber based on the detected movement.12-20-2012
20120271160Vascular Access Monitoring Device - A monitoring device (10-25-2012
20120271161Vascular Access Monitoring Device - A vascular access monitoring device for monitoring characteristics of a skin piercing vascular access device comprising: an acoustic sensor operable to detect an acoustic emission created by flow through said vascular access device and produce an electrical signal indicative of said emission; electronics processing means for processing and monitoring said electrical signal, and to determine, by identifying a change of characteristic of said signal, the possibility that the vascular access device has become dislodged from its normal working position.10-25-2012
20100228118METHOD FOR IMAGE SUPPORT DURING THE NAVIGATION OF A MEDICAL INSTRUMENT AND AN APPARATUS FOR CARRYING OUT A MINIMALLY-INVASIVE INTERVENTION FOR THERAPY OF A TUMOR - A method for image support in the navigation of a medical instrument for a minimally-invasive intervention for therapy of a tumor in human body is proposed. A first current three-dimensional image dataset is recorded shortly before the intervention with an x-ray device showing the tumor. A second current three-dimensional image dataset is recorded with the x-ray device highlighting the blood vessels in the vicinity of the tumor while providing a contrast medium. The first and the second current image dataset are merged into a first merged image dataset. Two-dimensional images showing the medical instrument are repeatedly imaged with the x-ray device and/or an ultrasound device and/or determination of position data reflecting the three-dimensional position of the instrument by a position determination device registered with the x-ray device. The first merged image dataset is merged with the two-dimensional images and/or the position data to form a second merged image dataset.09-09-2010
20100228117System And Method For Image-Guided Navigation - Image data can be obtained with an imaging device. A location of the imaging device relative to a subject can be determined. A location of an instrument can be tracked relative to the subject using two or more tracking systems operating with different tracking modalities. Also, the tracked location of the instrument can be illustrated relative to the image data.09-09-2010
20100228119METHODS OF DETERMINING MOTION AND DISTANCE DURING MEDICAL AND VETERINARY PROCEDURES - A system, for use with a cannula insertable into human or animal tissue, for measuring relative motion during a surgical procedure includes a probe having a probe tip insertable into the cannula, and means for determining relative motion between the cannula and the probe tip.09-09-2010
20110130648CATHETER WITH PRESSURE MEASURING TIP - A medical probe, consisting of a flexible insertion tube, having a distal end for insertion into a body cavity of a patient, and a distal tip, which is disposed at the distal end of the flexible insertion tube is configured to be brought into contact with tissue in the body cavity. The probe also includes a coupling member, which couples the distal tip to the distal end of the insertion tube and which consists of a tubular piece of an elastic material having a plurality of intertwined helical cuts therethrough along a portion of a length of the piece.06-02-2011
20110237935Method and Apparatus for Guiding an External Needle to an Implantable Device - A system can include an implantable device, an instrument, a display device and a processor. The implantable device can include a port and a localizer for generating a navigation field. The instrument can include a tracking device for sensing the navigation field. The processor can be operably coupled to the tracking and display devices and operable to determine a real-time location of the instrument relative to the port and a trajectory of the instrument relative to an insertion axis of the port. The processor system can be operable to cause the display device to graphically render the instrument as a plurality of two or three-dimensional rings positioned around an axis coincident with the determined trajectory and in spaced relation to each other along the axis. A first ring of the plurality of rings can be positioned at the determined instrument location relative to a graphical representation of the port location.09-29-2011
20110237934BIOPSY SUPPORT SYSTEM - A biopsy support system includes a virtual shape image generating section that generates a virtual shape image of an inside of a body cavity which is an insertion target from image data in a three-dimensional region with respect to a subject, an endoscope provided with an endoscope insertion portion and a channel, an ultrasound probe inserted into the channel including an ultrasound transducer and a position sensor that detects a three-dimensional position provided at a distal end portion thereof, an ultrasound image generating section that generates an ultrasound tomographic image, a specification section for specifying a first end and a second end in a desired range along a direction in which the ultrasound probe protrudes when the distal end portion of the ultrasound probe is moved along the direction in which the ultrasound probe protrudes from the distal end of the channel, a position detection section that detects a three-dimensional position of the position sensor based on the first end and the second end specified by the specification section and an image display control section that displays a biopsy range in which a biopsy is performed using the biopsy treatment instrument set based on the three-dimensional position superimposed on a position corresponding to the biopsy range on the virtual shape image.09-29-2011
20110237933METHOD FOR DETECTING CONTACT WITH THE WALL OF A REGION OF INTEREST - A method for detecting when a tool contacts a wall of a region of interest includes the steps of: tracking the motion of the tool and creating a tool motion profile; calculating a correlation value representative of the correlation between the tool motion profile and a wall motion profile indicative of the motion of the wall; and determining when the correlation value exceeds a threshold indicative of contact of the tool with the wall of the region of interest.09-29-2011
20100234725Method And Apparatus For Facilitating Navigation Of An Implant - The present invention describes a targeting system suitable for guiding a biocompatible device to a target area within the body (in vivo) and method of using the same. The system includes a targeting member that is attached to the biocompatible device and may optionally include a steering material. The system includes a passer element located at the distal end of a wand. The wand includes a trigger like member adjacent a hand grip. Actuation of the trigger like member will result in a pivotal movement of the passer element that positions the targeting member such that the connected biocompatible device is positionable relative to the target area.09-16-2010
20100234724Navigating A Surgical Instrument - An instrument tracking device for cooperating with an instrument during a surgical procedure where the instrument has an elongated body extending along a first longitudinal axis and including a working member at a distal tip includes a body having a distal end and a proximal end. An opening can be formed through the body along a second longitudinal axis. The opening can define a passthrough in the body from the distal end to the proximal end. A first tracking coil can be disposed in the body and can define a first tracking coil axis that is substantially coaxial with the second longitudinal axis of the body. A connection mechanism cooperates between the elongated housing and the body that secures the body to the elongated housing of the instrument upon passing at least a portion of the elongated housing through the passthrough of the body in an assembled position.09-16-2010
20120277576ECHOGENIC INFUSION PORT CATHETER - Among other things, a delivery catheter assembly for insertion into a patient's vasculature is disclosed. In particular embodiments, the assembly includes a catheter, an obturator, and a hub. The hub is configured to maintain the proximal end of the catheter thereon. The hub and the proximal end of the obturator are configured to securely engage each other until a physician desires to release the obturator from the hub. When the catheter and obturator are assembled, the distal ends of the catheter and the obturator are adjacent or substantially aligned. In one form, the distal end of the obturator is made of an echogenic material that is visible with sonography or ultrasound imaging. In another form, a plurality of echogenic markers is positioned along the obturator including the distal end of the obturator. Beneficially, the position of the catheter is determined by locating the obturator using sonography or ultrasound imaging.11-01-2012
20120277578Balloon Resection Method - A balloon resection method is disclosed generally comprising inserting a catheter with at least one balloon having an outer wall with a resecting, non-slip surface for resecting unwanted biological material, such as tissues or tumors, and supplying fluid thereto in pulsed fashion to repeatedly deflate and inflate the balloon. In certain embodiments, a pump controls the pulsed supply of fluid based on an established frequency or change in volume. In some embodiments, the a keyed connector is used to identify the balloon type, and in some cases, intra-lumen diameters and densities are calculated. In some embodiments, the balloon portion of the catheter includes multiple balloon segments, which in some cases, are inflatable separately from one another.11-01-2012
20110270083SYSTEM AND METHOD FOR DYNAMIC METAL DISTORTION COMPENSATION FOR ELECTROMAGNETIC TRACKING SYSTEMS - A method and system for dynamic metal distortion compensation using an Electromagnetic Tracking System (EMTS) (11-03-2011
20120089014METHOD AND APPARATUS FOR TRACKING IN A MEDICAL PROCEDURE - A tracking system for a target anatomy of a patient can include a medical device having a body (04-12-2012
20120089013EM TRACKING SYSTEMS FOR USE WITH ULTRASOUND AND OTHER IMAGING MODALITIES - An EMT system for use in ultrasound and other imaging modality guided medical procedures. The system includes a tool set of various components to which EM sensors can be releasably secured. Thus, the sensors can be reused, notwithstanding the disposal of other components of the tool set. Various components of the tool set include keying elements to facilitate their registration to the anatomy of the patient undergoing the procedure via the EM sensors.04-12-2012
20120089012METHOD AND APPARATUS FOR NAVIGATING A CUTTING TOOL DURING ORTHOPEDIC SURGERY USING A LOCALIZATION SYSTEM - The invention provides methods and apparatus for accurately cutting bones with a surgical cutting device, such as a sagittal saw, using a surgical navigation system without use of a complex cutting jig. A surgical navigation system is used to navigate a guide tube to be used to drill a k-wire into the bone. The k-wire will act as a guide to control at least one degree of freedom of a saw blade for making a cut in the bone. In an exemplary high tibial osteotomy procedure, in which two intersecting planar cuts must be made in the tibia in order to remove a wedge of bone, a surgical navigation marker is mounted on the guide tube. The surgeon uses the surgical navigation system to navigate the guide tube to the desired varus-valgus angle and height of the first cut and then drills a k-wire into the tibia at that varus-valgus angle using the guide tube. The process is repeated for the second cut. The surgeon then uses the two k-wires as guides for controlling the varus-valgus angle of a sagittal saw for the two planar cuts. The surgeon rests the saw blade flat on the respective k-wire to define the varus-valgus angle of the cut. The saw itself also is navigated, with the surgical navigation system providing a display showing the surgeon at least (1) the varus-valgus angle, (2) the cut depth, and (3) the anterior-posterior slope. The anterior-posterior slope and the depth of the cut is controlled freehand by the surgeon.04-12-2012
20120330135METHOD FOR ENABLING MEDICAL NAVIGATION WITH MINIMISED INVASIVENESS - A method for providing positional relationship data, which represent the position of a marker device relative to a bone which it is affixed to, to a medical navigation system, comprising the steps of: a) receiving bone registration data which represent locations of points on the surface of the bone; b) calculating, from the bone registration data, the current relative position between the bone and a medical instrument which bears the marker device; c) determining an offset between the current relative position and a desired relative position; d) outputting indication information which is based on the calculated offset; e) receiving bone re-registration data which represent locations of points on the surface of the bone; and f) calculating the positional relationship data from the bone re-registration data.12-27-2012
20120330139MEDICAL DEVICE AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include backscattered intensity measurements.12-27-2012
20120330138SYSTEMS CONFIGURED TO LOCATE A PHOTONIC DEVICE DISPOSED IN A LIVING SUBJECT, AND RELATED APPARATUSES AND METHODS - In an embodiment, a system includes a biocompatible photonic device configured for disposal within a living subject and a location-indicating aid associated with the photonic device. The location-indicating aid is configured to facilitate locating the biocompatible photonic device within the living subject. Related apparatuses and methods of use are also disclosed.12-27-2012
20120330137SYSTEMS CONFIGURED TO LOCATE A PHOTONIC DEVICE DISPOSED IN A LIVING SUBJECT, AND RELATED APPARATUSES AND METHODS - In an embodiment, a system includes a biocompatible photonic device configured for disposal within a living subject and a location-indicating aid associated with the photonic device. The location-indicating aid is configured to facilitate locating the biocompatible photonic device within the living subject. Related apparatuses and methods of use are also disclosed.12-27-2012
20120330134Interventional Imaging - An array emitter including a plurality of emitting portions can be used to individually emit selected energy, such as x-ray radiation, from the emitter ray rather than powering or emitting radiation from all portions of the emitter array. According, providing a plurality of cells within an emitter array, and selectively emitting x-rays from individual cells can allow for selection of which cells to emit x-rays from to acquire selected image data. A process is disclosed for selecting, including automatically, which portions to power to emit energy.12-27-2012
20120330136SYSTEMS CONFIGURED TO LOCATE A PHOTONIC DEVICE DISPOSED IN A LIVING SUBJECT, AND RELATED APPARATUSES AND METHODS - In an embodiment, a system includes a biocompatible photonic device configured for disposal within a living subject and a location-indicating aid associated with the photonic device. The location-indicating aid is configured to facilitate locating the biocompatible photonic device within the living subject. Related apparatuses and methods of use are also disclosed.12-27-2012
20110319752IMAGE SUPER ENHANCEMENT - Apparatus and methods are provided for imaging a tool inside a portion of a subject's body that undergoes motion. A plurality of image frames of the portion are acquired. An image frame in which the tool is enhanced is generated by (a) identifying radiopaque markers in the image frames, (b) identifying edge lines in a vicinity of the markers within the image frames, the edge lines corresponding to contours of the tool, (c) in response to the identifying of the edge lines, selecting a subset of the image frames that are based upon the acquired image frames, based upon a level of similarity between the edge lines in the selected image frames to one another, (d) aligning the contours in a plurality of the selected image frames, and (e) averaging the plurality of aligned frames to generate an averaged image frame. Other applications are also described.12-29-2011
20110319751DYNAMIC REFERENCE METHOD AND SYSTEM FOR USE WITH SURGICAL PROCEDURES - A substrate configured for placement on an internal organ or internal tissue is provided. In certain embodiments, the substrate conforms to and moves with the internal organ or internal tissue. Three or more sensor elements are integrated on the substrate. In one implementation, the substrate and associated sensor elements provide dynamic referencing of the internal organ or internal tissue after registration of the sensor data with images and/or volumetric representations of the internal organ or internal tissue.12-29-2011
20110319750NAVIGATION DATA SHARING SYSTEM AND NAVIGATION INSTRUMENT - A navigation system includes two or more navigation instruments connected with a network, and two or more sensors connected with the network and for detecting information to be used by the navigation instruments. The navigation instrument includes a switch control module for switching between a state in which the navigation instrument functions as a mother unit and as a child unit, a delivery module for transmitting through the network, when one of the navigation instruments functions as the mother unit, representative sensor selection related information to another navigation instrument that functions, the representative sensor selection related information being information about which sensor is to be used among the two or more sensors, and a representative sensor selecting module for selecting the sensor to be used based on the representative sensor selection related information received from the navigation instrument that functions as the mother unit.12-29-2011
20110319749System and Method for Determining Medical Capsule Location inside a Human Body - Systems and methods are provided for capsule location determination. There is a need to estimate the capsule location in a living body for drug dispensing, correlating capsule images with actual tract location and other purposes. A capsule location determining system is disclosed which comprises a plurality of sensing devices and a base station. Each sensing device comprises a radiating element to radiate an inducing signal, a generating circuit to provide a patterned signal to drive the radiating element, a sensing element to sense the induced field and a receiving circuit to provide a recovered signal. The base station estimates the capsule location based on a time profile of collected information related to the recovered signals from all sensing devices. Methods associated with the capsule location determining systems are also disclosed.12-29-2011
20120101370SYSTEMS, METHODS, APPARATUSES, AND COMPUTER-READABLE MEDIA FOR IMAGE GUIDED SURGERY - Presented herein are methods, systems, devices, and computer-readable media for image guided surgery. The systems herein allow a physician to use multiple instruments for a surgery and simultaneously provide image-guidance data for those instruments. Various embodiments disclosed herein provide information to physicians about procedures they are performing, the devices (such as ablation needles, ultrasound wands or probes, scalpels, cauterizers, etc.) they are using during the procedure, the relative emplacements or poses of these devices, prediction information for those devices, and other information. Some embodiments provide useful information about 3D data sets. Additionally, some embodiments provide for quickly calibratable surgical instruments or attachments for surgical instruments.04-26-2012
20120101369METHODS AND SYSTEMS FOR DETERMINING VASCULAR BODILY LUMEN INFORMATION AND GUIDING MEDICAL DEVICES - Methods and systems for determining information about a vascular bodily lumen are described. An exemplary method includes generating an electrical signal, delivering the electrical signal to a plurality of excitation elements in the vicinity of the vascular bodily lumen, measuring a responsive electrical signal from a plurality of sensing elements in response to the delivered electrical signal, and determining a lumen dimension. Specific embodiments include generating a multiple frequency electrical signal. Another embodiment includes measuring plurality of responsive signals at a plurality of frequencies. Still other embodiments include using spatial diversity of the excitation elements. Yet other embodiments use method for calibration and de-embedding of such measurements to determine the lumen dimensions. Diagnostic devices incorporating the method are also disclosed, including guide wires, catheters and implants. The methods and systems described herein are advantageous as they do not include injecting a second fluid for the measurements.04-26-2012
20120289824BIOPSY APPARATUS AND BIOPSY METHOD - A biopsy apparatus has a biopsy needle, which faces a radiation reception surface of a radiation detector and is held obliquely to the radiation reception surface by a biopsy needle holding mechanism. The biopsy apparatus includes a radiographic image capturing apparatus for capturing two radiographic images. One of the two radiographic images is produced according to a scout image capturing mode or a stereographic image capturing mode, and the other is produced according to the stereographic image capturing mode.11-15-2012
20120289819IMPLANT DETECTOR - Generally described herein are an apparatus, a method of use, and/or a system related to an implant detector for detecting whether a needle inserted into a body of a patient has come into contact with a sensitive portion of the implanted gastric banding system (e.g., the tube connecting the access port to the gastric band). For example, a warning light may be activated. By alerting the medical professional when the inserted needle has come into contact with a sensitive portion of the implanted gastric banding system, the implant detector may prevent the medical professional from puncturing the contacted sensitive portion.11-15-2012
20120289822APPARATUS AND METHOD FOR LORENTZ-ACTIVE SHEATH DISPLAY AND CONTROL OF SURGICAL TOOLS - The Lorentz-Active Sheath (LAS) serves as a conduit for other medical devices such as catheters, balloons, biopsy needles, etc. The sheath is inserted through a vein or other body orifice and is guided into the area of the patient where the operation is to be performed. The position and orientation of the LAS is tracked via an industry standard position detection system which senses electrical signals that are emitted from several electrodes coupled to the LAS. The signals received from the LAS are used to calculate an accurate and reliable assessment of the actual position of the LAS within the patient. The electrode signals also serve to create a reference frame which is then used to act as a motion compensation filter and fiducial alignment system for the movement of the LAS-hosted medical tool.11-15-2012
20120289823Animal and plant cell electric stimulator with randomized spatial distribution of electrodes for both current injection and for electric field shaping - An electric stimulator for heart, brain, organs and general cells with a random shape and position of electrodes which enhances its performance for breaking the symmetry. Two types of electrodes are introduced: type-1, or active electrodes are similar to prior art, while type-2, or passive electrodes have not been used in this context. Passive electrodes are electrically insulated, being unable to inject current in the surrounding medium, but they are capable of shaping the electric field, which has consequence on the path of the stimulating currents injected by type-1 electrodes.11-15-2012
20120289821C-ARM INTEGRATED ELECTROMAGNETIC TRACKING SYSTEM - A medical imaging system and a method electromagnetically track a position of structures with the medical imaging system and a C-arm arrangement. The medical imaging system contains a C-arm, a gantry, and at least one electromagnetic field generator assembly with at least one electromagnetic field generator which interacts with an electromagnetic sensor from receiving the electromagnetic radiation. Preferably, the electromagnetic sensor is positioned within a region of surgical interest in a patient. The electromagnetic field generator is directly embedded into the C-arm.11-15-2012
20120289820Apparatus And Method For Imaging A Medical Instrument - The invention provides an ultrasound imaging and medical instrument guiding apparatus, a system for acquiring and displaying ultrasound medical images and methods of using the apparatus and system in epidural anesthetic procedure. The apparatus comprises a hand-held ultrasound probe, configured to acquire a volumetric dataset representing a 3-D depiction of a volume; a mount to which the probe is mounted; and a medical instrument guide positionable relative to the ultrasound probe and configured to receive and guide a medical instrument along a propagation axis to a target in a body such that the target and the propagation axis intersect in the volume. The volumetric dataset acquired by the hand-held ultrasound probe comprises information about the medical instrument's position relative to the target in three dimensions and the medical instrument guide has a visible mark from which the depth of the medical instrument insertion along the propagation axis can be referenced.11-15-2012
20100179418INSTRUMENT ALIGNING METHOD USING A FREE REFERENCE - The invention relates to an instrument aligning method in which a medical instrument to be aligned is aligned to a target point, wherein the spatial position of the instrument to be aligned is determined and tracked by means of a medical tracking system, wherein the target point is indicated by a freely movable pointing instrument, which is likewise determined and tracked by means of the medical tracking system, and the instrument to be aligned is then aligned to the target point with the aid of a medical navigation which is associated with the tracking system.07-15-2010
20100185083NAVIGATION ENABLED LEAD DELIVERY CATHETER - A catheter system for positioning of a medical instrument includes a first elongate member having a first lumen. The system also includes a second elongate member that includes a second lumen that receives the medical instrument. The second elongate member is coupled directly to the first elongate member, and the second elongate member is cuttable to allow removal of the medical instrument from the second lumen. The second elongate member is also selectively collapsible and expandable to change a size of the second lumen. Furthermore, the system includes a navigation tool operable for allowing detection of a location of the catheter system. The navigation tool is received in the first lumen, and the second elongate member is cuttable without cutting the first elongate member and the navigation tool.07-22-2010
20130012808CONNECTOR WITH ACTIVE SHIELDING - An electrical connector includes one or more connector terminals, which are connected to wiring extending from the connector and are coupled to interconnect with corresponding connector terminals in a mating connector. An active shielding circuit is mounted adjacent to the connector terminals and is configured to sense a first magnetic field in a vicinity of the electrical connector and to generate, based on the sensed magnetic field, a second magnetic field that reduces interference induced in the wiring and the connector terminals by the first magnetic field.01-10-2013
20130012807SYSTEM AND METHOD FOR TRACKING POSITION OF HANDHELD MEDICAL INSTRUMENTS - The system and method for tracking the position of handheld medical instruments provides for instantaneous feedback and instruction to a medical practitioner during performance of a medical procedure. The system and method utilize a graphical user interface, which displays data related to at least a portion of a patient's body. The user then selects a body part of the patient for performing a selected medical procedure. A plurality of pulse receivers are provided for detecting and receiving very narrow pulse electromagnetic pulses. A plurality of instrument pulse emitters are mounted on a handheld medical instrument for selectively transmitting first very narrow pulse electromagnetic pulses, and a to plurality of patient pulse emitters are positioned on the selected body part of the patient for selectively transmitting second very narrow pulse electromagnetic pulses. The position and orientation of the handheld medical instrument with respect to the selected body part is then determined.01-10-2013
20130012809SYSTEM AND METHOD FOR SENSING SHAPE OF ELONGATED INSTRUMENT - An instrument system that includes an elongate body, an optical fiber, and a controller is provided. The optical fiber is operatively coupled to the elongate body and has a strain sensor and a localization sensor provided thereon. The controller is operatively coupled to the elongate body and to the optical fiber and adapted to receive a first signal from the strain sensor, receive a second signal from the localization sensor, and determine a position of the elongate body based on the first signal and the second signal.01-10-2013
20100152572METHODS FOR IMAGING AN IMPLANT SITE - A method for preparation of an implant site is disclosed. The method includes positioning a patient relative to an imaging device. A first image of the implant site may be obtained. A distance from an access location to a deployment location may be determined. Other images may be obtained to determine the distance from the access location to the deployment location.06-17-2010
20100130854SYSTEM AND METHOD FOR A CATHETER IMPEDANCE SEEKING DEVICE - A tissue-contact seeking method and apparatus is described that enhances catheter position detection and control systems in making and maintaining continuous tissue contact in a highly dynamic frame, such as under the rigors of cardiac motion. Tissue-seeking logical routines use a tissue contact sensing system to advance a catheter to relatively continuous tissue contact, or detect obstacles, in cooperation with the catheter position detection and control systems. Additional logical routines are capable of optimizing the contact direction of the catheter tip by controlling the rotation angle and chamber position of the introducer.05-27-2010
20120150025Image Registration Using Interventional Devices - A system receives an image volume of a patient. A catheter applied to the patient contains at least one sensor, which may be a microcoil and which is detectable in the image volume. A size and a shape of a region of interest are pre-defined. A processor determines a location of the at least one sensor in the image volume. The image volume is generated by a medical imaging device. The processor defines the shape and size of the region of interest relative to the location of the at least one sensor to determine the region of interest in the image volume. Image data of the region of interest in the image volume and of the region of interest in a previous image volume are registered. The region of interest is determined during an interventional procedure on the patient.06-14-2012
20120150024TRANSESOPHAGEAL ECHOCARDIOGRAPHY CAPSULE - An imaging system, including a capsule, configured to enter an esophagus of a patient, having an ultrasonic transducer configured to image tissue of the patient. The system further includes an applicator tube configured to enter the esophagus, the tube being attachable to the capsule for positioning the capsule within the esophagus, and being detachable from the capsule after positioning of the capsule so as to permit the tube to be withdrawn from the esophagus while the capsule remains in position in the esophagus.06-14-2012
20120150023MICRONEEDLE ARRAYS FOR ACTIVE AGENT DELIVERY - The present invention provides for microneedle arrays and related systems and methods. Particularly, microneedle arrays that are configured to deliver active agents, including nucleic acids and vaccines, are provided. Additional related methods of vaccinating and minimizing the amount of vaccine necessary for effective inoculation are also provided.06-14-2012
20120150022PROBE TRACKING USING MULTIPLE TRACKING METHODS - A method, including: receiving an input indicative of respective apparent locations of a plurality of points disposed along a length of a probe inside a body of a subject, and applying a model of known mechanical properties of the probe to the respective apparent locations so as to minimize a first cost function with respect to shapes that can be assumed by the probe in the body. The method further includes choosing a shape responsively to the minimized first cost function and determining preliminary coordinates of the apparent locations responsively to the shape, minimizing a second cost function with respect to differences between the apparent locations and the preliminary coordinates, and generating corrected coordinates of the points along the length of the probe based on the minimized second cost function.06-14-2012
20120150021IDENTIFYING CRITICAL CFAE SITES USING CONTACT MEASUREMENT - A method for mapping includes receiving electrical inputs measured by a probe at respective locations in a chamber of a heart of a subject. The electrical inputs are processed to identify complex fractionated electrograms. At each of the respective locations, a respective contact quality between the probe and a tissue in the chamber is measured. A map of the complex fractionated electrograms in the chamber is created using the electrical inputs and the measured contact quality.06-14-2012
20130018254APPARATUS AND METHODS FOR IMAGING BLOOD VESSELS - Various portable systems, devices and methods for imaging or visualizing blood vessels or other body tissue to facilitate accurate placement of a needle or other elongate instrument in blood vessels or other body tissue are described herein. In certain variations an imaging system for aiding needle insertion in a patient may include a mountable unit having, an illumination source, an image sensor, and a display for displaying an image based on image information from the image sensor, The mountable unit may be configured for attachment to a hand of a user such that the user's hand on which the unit is mounted remains free to hold an object. The display may be positioned next to a needle insertion site during needle insertion by the user such that the needle insertion site and an image of the blood vessel and/or needle are simultaneously within the user's field of view.01-17-2013
20130018253METHOD FOR CONTROLLING EMMISSION IN AN X-RAY IMAGING DEVICEAANM Gorges; SebastienAACI VersaillesAACO FRAAGP Gorges; Sebastien Versailles FRAANM Desponds; LionelAACI St. Remy les ChevreuseAACO FRAAGP Desponds; Lionel St. Remy les Chevreuse FRAANM Bismuth; VincentAACI ParisAACO FRAAGP Bismuth; Vincent Paris FR - A method for controlling the emission of an X-ray imaging device configured to take images of a patient's body, into which a medical instrument has been inserted, is provided. The method comprises: processing at least one image of the patient's body taken by the X-ray imaging device to extract information representing the instrument, wherein the at least one image comprises the instrument; and adapting X-ray emission parameters of the X-ray imaging device, depending on the information extracted from the at least one image, to minimize the X-ray dose emitted towards the patient's body.01-17-2013
20130018255ENDOSCOPE OBSERVATION ASSISTANCE SYSTEM, METHOD, APPARATUS AND PROGRAMAANM Kitamura; YoshiroAACI Minato-kuAACO JPAAGP Kitamura; Yoshiro Minato-ku JPAANM Nakamura; KeigoAACI Minato-kuAACO JPAAGP Nakamura; Keigo Minato-ku JP - A virtual endoscope image generation unit receives, as an input, a three-dimensional medical image formed by a three-dimensional medical image formation unit, and generates a virtual endoscope image representing the body cavity viewed from a position in the three-dimensional medical image corresponding to the position of a treatment tool detected in real time by a treatment tool position detection unit. The generated virtual endoscope image is displayed on a WS display.01-17-2013
20110160575MICROPOROUS BALLOON CATHETER - A method and system for delivering a medicament into tissue, for example via a balloon with small pores. Optionally, the pressure used is high enough to cause jetting, but the pore sizes, pore density, pressure and/or delivery time are such that the jetting do not cause unacceptable tissue damage. Optionally, the pores are smaller than 2 microns, are between 300 and 600 per square centimeter and the pressure is above 8 atmospheres.06-30-2011
20110160574CARDIAC MAPPING WITH CATHETER SHAPE INFORMATION - A non-contact cardiac mapping method is disclosed that includes: (i) inserting a catheter into a heart cavity having an endocardium surface, the catheter including multiple, spatially distributed electrodes; (ii) measuring signals at the catheter electrodes in response to electrical activity in the heart cavity with the catheter spaced from the endocardium surface; and (iii) determining physiological information at multiple locations of the endocardium surface based on the measured signals and positions of the electrodes with respect to the endocardium surface. Related systems and computer programs are also disclosed.06-30-2011
20110160573Radiopaque Marking of Lead Electrode Zone in a Continuous Conductor Construction - A cardiac transvenous defibrillation lead has a continuous coil conductor within a layer of insulation. A portion of the coil conductor is exposed as a defibrillation electrode. In order to enhance fluoroscopic visualization of the exposed electrode during implant, the end of the exposed electrode is marked with a radiopaque element. The element may be in the form of an adhesive filled with radiopaque material that is used to backfill under the layer of insulation. Alternatively, a tube made of radiopaque material may be installed between the layer of insulation and the coil conductor.06-30-2011
20110160572DISPOSABLE WAND AND SENSOR FOR ORTHOPEDIC ALIGNMENT - A disposable tool suitable for use in orthopedic alignment comprises a sensor (06-30-2011
20110160571TOOL SHAPE ESTIMATION - A medical tool includes a location sensor at a distal end. While the tool is being maneuvered to a desired region of interest, a control unit records a first location reading obtained according to an output from the sensor when requested by a user, indicative of when a patient's anatomy constrains free movement of the tool in at least one degree of freedom. Once the tool has reached the region of interest, the control unit records a second location reading according to the sensor output indicative of a current location. A relaxation shape of the tool forms a shape constraint on the tool shape reconstruction. The control unit determines a reconstruction representing the current shape of the tool based on the positional constraints and the shape constraint. The reconstruction is graphically superimposed on an image of the region of interest.06-30-2011
20110160570PROLAPSE DETECTION AND TOOL DISLODGEMENT DETECTION - A tool dislodgement detection apparatus includes an MPS outputting position and orientation (P&O) readings for determining tool motion. A control generates an alarm based on the tool motion and dislodgement criteria. The criteria includes whether the tool motion meets a condition based on the type of medical procedure or tool, the tool parking position, a patient characteristic (e.g., age, weight, gender) or a physician preference. The criteria includes when the correlation between the tool motion and the cardiac, respiration and patient motion changes abruptly. In a prolapse detection apparatus, guidewire tip P&O readings determine a tip motion vector. The control generates an alarm using the motion vector and predetermined criteria. The criteria include a substantial change in the tip orientation not accompanied by a corresponding position change and a change in the motion vector by about 180° accompanied by a corresponding position change no greater than a threshold.06-30-2011
20110160569 SYSTEM AND METHOD FOR REAL-TIME SURFACE AND VOLUME MAPPING OF ANATOMICAL STRUCTURES - A method and system for mapping a volume of an anatomical structure includes a processor for computing a contour of a medical device as a function of positional and/or a shape constraints, and to translate the contour into known and virtual 3D positions. The processor is configured to determine a spatial volume based on a virtual position, and to render a 3D representation of the spatial volume. A method and system of mapping a surface of an anatomical structure includes a processor configured to obtain an image of the structure. The processor is further configured to receive a signal indicative of a medical device contacting the surface of the anatomical structure, and to determine a position of the device upon when contact has been made. The processor is configured to superimpose marks on the image indicative of a contact points between the device and the structure.06-30-2011
20110160568Lead Tracking and Positioning System and Method - Image data can be obtained with an imaging device. A location of the imaging device relative to a subject can be determined. A location of an instrument can be tracked relative to the subject using a tracking system. Also, the tracked location of the instrument can be illustrated relative to the image data.06-30-2011
20130023758DIAGNOSTIC CATHETERS, GUIDE CATHETERS, VISUALIZATION DEVICES AND CHORD MANIPULATION DEVICES, AND RELATED KITS AND METHODS - Described herein are devices, methods and kits for assessing and/or enhancing the accessibility of a subvalvular space of a heart, accessing the subvalvular space of the heart (e.g., to provide access for one or more other devices), and/or positioning one or more devices in the subvalvular space of the heart. The devices described herein may, for example, comprise catheters that may be used to manipulate one or more chordae tendineae, diagnostic catheters having different sizes and/or shapes (e.g., different curvatures), guide catheters having different sizes and/or shapes (e.g., different curvatures), and visualization catheters. In some variations, the devices, methods, and/or kits may be used to visualize a target site, such as a subannular groove of a heart valve. In certain variations, the devices, methods, and/or kits may be used to manipulate chordae tendineae to provide additional space in a ventricle of a heart (e.g., enhancing the accessibility of the ventricle).01-24-2013
20130023759AUTOMATED IDENTIFICATION OF AN ANATOMY PART - The present invention relates to a device 01-24-2013
20080255446SYSTEM AND METHOD OF INTEGRATING ELECTROMAGNETIC MICROSENSORS IN GUIDEWIRES - A system and method of integrating electromagnetic microsensors into interventional endovascular devices such as guidewires for tracking guidewires within vessels of the body with the use of a surgical navigation system.10-16-2008
20080242975DEVICE AND METHOD FOR LOCATING A CANNULA THAT IS INSERTED INTO A BODY - A light pointer (10-02-2008
20080234570System For Guiding a Medical Instrument in a Patient Body - The present invention relates to a medical system comprising a medical instrument to be guided in a patient body, ultrasound acquisition means using an ultrasound probe for acquiring a 3D ultrasound data set and X-ray acquisition means for acquiring a 2D X-Ray image, which comprises a projection of said medical instrument. The system in accordance with the invention further comprises means for localizing said ultrasound probe within a referential of said X-Ray acquisition means, means for providing a first localization of said medical instrument within a referential of the ultrasound acquisition means, means for converting said first ultrasound localization into a first X-Ray localization within the referential of said X-Ray acquisition means, means for providing a second X-Ray localization of the projection of said medical instrument in the two-dimensional X-ray image, means for mapping said 3D ultrasound data set with said 2D X-ray image in accordance with a transformation, which minimizes a distance between a projection of said first X-Ray localization on said 2D X-Ray image and said second X-Ray localization and means for generating and displaying a bi-modal representation of said medical instrument, in which said 2D X-ray image and said mapped 3D ultrasound data are combined.09-25-2008
20080228066METHODS AND SYSTEMS FOR LOCATING A FEEDING TUBE INSIDE OF A PATIENT - Systems and methods are provided for detecting the position of a feeding tube in a patient's body. A feeding tube having a light source sensor is inserted into a patient. A light is generated over the body of a patient. When the light source sensor detects the presence of the light, a signal is generated. In certain embodiments, the signal may be based upon the intensity of the light perceived at the light source sensor. Certain embodiments provide systems and methods comprising a feeding tube having a proximity sensor target. A detector having a proximity sensor is moved externally about a patient's body such that, when the sensor detects the proximity sensor target of the feeding tube, the proximity sensor produces an indication signal.09-18-2008
20080228065System and Method for Registration of Localization and Imaging Systems for Navigational Control of Medical Devices - A system and method are provided for obtaining registration of a localization system's three-dimensional coordinates for a plurality of markers having known locations to the two-dimensional coordinates for the plurality of reference markers obtained from a single X-ray image. The method for registering a navigational system with a localization system having a plurality of reference markers includes determining the three-dimensional coordinates of the locations of a plurality of reference markers within the localization coordinate system, and providing a single two-dimensional X-ray image that includes a two dimensional location of the plurality of markers. The method further includes determining a coordinate transformation for obtaining a best fit registration of the localization system's three-dimensional coordinates to the two-dimensional coordinates obtained from the single X-ray image, for at least one reference marker location.09-18-2008
20130172730Motion-Compensated Image Fusion - One aspect of the present disclosure involves a medical imaging system and a method for displaying images of medical devices deployed within a body of a patient in relation to images of anatomical structures of the body. Because of various operating constraints, the images may have been acquired from different coordinate systems at different times. Three-dimensional (3D) positions of physical and virtual sensors in addition to phases of a body organ may be used in associating the images from the different coordinate systems. The system may also compensate for any movement of the patient along an operating table, as well as for movement caused by respiratory and cardiac activity.07-04-2013
20130172731IMAGE-OVERLAY MEDICAL EVALUATION DEVICES AND TECHNIQUES - A system and methods are provided for evaluating the position of surgical implants or openings formed in anatomical tissue during medical procedures, in which an initial 3-dimensional image of the anatomical tissue is combinable with one or more subsequent 3-dimensional images of the same or correlating tissue, and without the use of ionizing radiation on a patient for at least the subsequent images. The system includes a software program, a computer with display, a radiographic image scanning device, and a non-radiographic image scanning device. The computer accesses a medical patient information database and a medical implant database for images used by the software program. A pre-operative image is combined with subsequent images to facilitate evaluation of the proposed placement of a surgical implant or opening relative to tissues of the patient anatomy. Methods of evaluating the accuracy of surgical guides and of fabricating surgical guides are also disclosed.07-04-2013
20130172732METHOD FOR PERFORMING DYNAMIC REGISTRATION, OVERLAYS, AND 3D VIEWS WITH FLUOROSCOPIC IMAGES07-04-2013
20130172733Systems and Methods for Radiographically Identifying an Access Port - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is included on an insert that is incorporated into the access port so as to be visible after implantation via x-ray imaging technology.07-04-2013
20080221438AUTOMATED CATALOG AND SYSTEM FOR CORRECTION OF INHOMOGENEOUS FIELDS - A method for providing a localization system with detailed information regarding a catheter's construction, while at the same time preventing operator input errors, for use in a three-dimensional localization field, including providing a catheter having at least one feature, providing a catheter catalog for use by the localization system, wherein the catheter catalog comprises reference data relating to features of the catheter, placing the catheter into the localization field, creating a map with the localization field, locating the catheter on the map, and correlating features of the catheter within the localization field with measurements made by the localization system when the feature is at various locations.09-11-2008
20080221437STEERABLE SNARE FOR USE IN THE COLON AND METHOD FOR THE SAME - An apparatus comprises a snare and an actuator. The snare is formed of a material having an opacity complementary to a predetermined imaging system that is positionable external to a patient. The actuator is configured to steer the snare in response to an image of at least a portion of a colon of the patient. The image is generated by the predetermined imaging system.09-11-2008
20080221436ELECTRONIC VALVE READER - The invention is directed toward a magnetic valve reader used as an indicator tool. The magnetic valve reader determines a location and an orientation for a magnetic indicator device to indicate a device setting of an implantable medical device. The implantable medical device includes the magnetic indicator device coupled to a valve on the implantable medical device. External magnetic fields, specifically the Earth's magnetic field, may interfere with the compass and create an incorrect device setting indication. The electronic reader estimates the external magnetic fields to subtract the estimate from received data to minimize any influence that external magnetic field has on the accuracy of the device setting measurement.09-11-2008
20080221435Catheter Navigation System - A method and system for navigation of a medical instrument, including: introducing at least three reference device(s) disposed to at least three reference locations; employing an imaging and guidance system to acquire a plurality of image projections corresponding to a desired anatomy including the reference devices, the plurality of image projections being sufficient to permit generating a three-dimensional modeling or reconstruction images corresponding to the reference devices. The method also includes measuring a position of the reference devices; formulating a transformation matrix based on comparing positions of the reference devices computed from the modeling or reconstruction images with the measured positions of the reference devices; and superimposing an image of a medical instrument in at least one of the plurality of image projections based on the transformation matrix and a position of the medical instrument.09-11-2008
20080221434Displaying an internal image of a body lumen of a patient - A medical system includes a display monitor, a catheter, a sensor, non-light-obtained image data of a patient, and a computer. The catheter has a distal end insertable into a body lumen of the patient. The sensor is attached to the catheter and is adapted to provide position data. The computer is adapted to calculate a position of the sensor using at least the position data indexed to a reference coordinate system, to create an internal image representation of the body lumen using at least the image data indexed to the reference coordinate system, and to display on the monitor a display image of the internal image representation of the body lumen. A storage medium contains a program readable by a computer which instructs the computer to perform the previously described steps. A method for visualizing a position of a catheter within a patient performs the above-described steps.09-11-2008
20130144159MEDICAL-SURGICAL DEVICES - An embryo replacement catheter has a flexible extruded shaft of a transparent polyurethane with a bore extending along its length. Gas bubbles of a diameter in the range 5.mu. to 10.mu. are incorporated into the thickness of the wall of the shaft by adding gas during extrusion. The bubbles are selected to increase the visibility of the catheter under ultrasound imaging whilst still enabling material flowing along the catheter to be seen. The inventive catheter is not confined to embryo replacement catheters.06-06-2013
20120253181ULTRASOUND DIAGNOSIS APPARATUS AND CONTROLLING METHOD - An ultrasound diagnosis apparatus includes: a scan controlling unit that exercises control to perform a first scanning process by transmitting an ultrasound wave in a first direction and a second scanning process by transmitting an ultrasound wave in each of a plurality of directions; an image generating unit that generates a first ultrasound image and second ultrasound images from the first and the second scanning processes, respectively; an image generation controlling unit that has a needle image generated, based on an analysis result on the brightness distribution of each member of a group of images based on the first ultrasound image and the second ultrasound images or an analysis result on the brightness distribution of each of the second ultrasound images; an image synthesizing unit that generates a synthesized image from the first ultrasound image and the needle image; and a display controlling unit that displays the synthesized image.10-04-2012
20120253180COMBINED ULTRASOUND AND PHOTOACOUSTIC IMAGING OF METAL OBJECTS - Methods of combined ultrasound and photoacoustic imaging are provided. In some embodiments, the methods may be used to determine the location or positioning of a metal object in a sample. In other embodiments, the methods may be used to determine the composition of a sample surrounding a metal object. Other methods are also provided.10-04-2012
20080208039System and method of performing therapeutic endovascular interventions - A system and method of tracking a medical device and generating an image of a target area. The medical device includes a Helmholtz coil pair to create an imaging field-of-view that extends beyond the tip of the medical device while allowing the tip of the medical device to be visualized. The Helmholtz coil pair provides the ability to generate images forward of the medical device tip to ensure that the tip of the medical device will not puncture the target tissue or vasculature.08-28-2008
20090156928RADIOPAQUE AND SEPTUM-BASED INDICATORS FOR A MULTI-LUMEN IMPLANTABLE PORT - An implantable multi-lumen access port including indicators for ascertaining characteristics of the port is disclosed. In one embodiment, the access port comprises a housing that defines a first reservoir and a second reservoir. A first septum and second septum are respectively coupled with the housing to provide selective access to the first and second reservoirs. Each septum includes a plurality of protrusions defined about a periphery thereof that are palpable after implantation of the port in a patient to determine a relative position of the first septum with respect to the second septum. A radiographically observable indicator is also included on a base of the housing, so as to provide information relating to a characteristic of the dual-lumen port, such as suitability for power injection of fluids. The indicator in one embodiment includes a substantially rigid radiopaque component.06-18-2009
20130096423ENDOSCOPE SYSTEM - An endoscopic system includes an insertion portion inserted into a tubular body, a ranging mechanism, an insertion path calculation unit and a presentation unit. The insertion portion includes a distal end and a bending portion defining a driving face. The ranging mechanism acquires distance information on the driving face between an inner wall of the tubular body on a far side and the distal end of the insertion portion while the distal end is placed on a near side in the tubular body. The insertion path calculation unit calculates an insertion path for the distal end of the insertion portion extending from the near side on which the distal end is placed, to the far side, based on the distance information. The presentation unit presents the insertion path for the distal end of the insertion portion extending from the near side to the far side.04-18-2013
20130096424SYSTEM AND METHOD FOR REAL-TIME ENDOSCOPE CALIBRATION - A sensor tracking device, system and method include a sensor (04-18-2013
20130096422INTERVENTIONAL PHOTOACOUSTIC IMAGING SYSTEM - An interventional photoacoustic imaging system and method for cancer treatment comprises an optical source for applying laser energy to optically excite a treatment area, a needle, ablation tool or catheter for inserting the optical source into a body of a patient adjacent the treatment area, and an ultrasonic transducer for detecting the acoustic waves. A processor receives the raw data from the ultrasound system and processes it to thereby form a photoacoustic image of the tissue in real time. As such, image formation may be performed preoperatively, intraoperatively, and postoperatively.04-18-2013
20130096421MARKER IDENTIFICATION DURING GAMMA OR POSITRON IMAGING WITH APPLICATION TO INTERVENTIONAL PROCEDURES - A method is provided for identifying a marker by co-registering gamma or positron images. The method is capable of being applied during interventional procedures and includes steps for detecting a first two-dimensional image at a first energy level, detecting a second two-dimensional image at a second energy level, displaying simultaneously the first and second two-dimensional images, and selecting display coefficients for the first and second two-dimensional images04-18-2013
20130102893MEDICAL IMAGE REGISTRATION USING A RIGID INNER BODY SURFACE - The invention relates to a medical image registration method in which an actual patient's body or portion of a patient's body (04-25-2013
20130102887Minimally Invasive Lung Volume Reduction Devices, Methods, and Systems - A lung volume reduction system is disclosed comprising an implantable device adapted to be delivered to a lung airway of a patient in a delivery configuration and to change to a deployed configuration to bend the lung airway. The invention also discloses a method of bending a lung airway of a patient comprising inserting a device into the airway in a delivery configuration and bending the device into a deployed configuration, thereby bending the airway.04-25-2013
20130102888Torque For Incrementally Advancing a Catheter During Right Heart Catheterization - A torque for controlling the advancement and rotation of a right heart catheter during a right heart catheterization procedure. The torque has a casing with a cavity for receiving a core, and a lumen for receiving the right heart catheter. A gripper is disposed within the core to tightly grip the right heart catheter. The core has a plurality of threads that engage teeth of a handle. The handle is attached to the casing at an axis and rotates about the axis during use. The core has an elongated spiraled recess which is engaged by a guide pin attached to the casing and extending within the cavity. When the handle is rotated, the teeth of the handle engage the threads to rotate the core, and the guide pin engages the elongated spiraled recess to move the core laterally, thereby advancing and rotating the right heart catheter.04-25-2013
20130102886SURGICAL ACCESS SYSTEM WITH NAVIGATION ELEMENT AND METHOD OF USING SAME - A surgical access assembly and method of use is disclosed. The surgical access assembly comprises an outer sheath and an obturator. The outer sheath and obturator are configured to be delivered to an area of interest within the brain. Either the outer sheath or the obturator may be configured to operate with a navigational system to track the location of either device within the brain.04-25-2013
20130102892SENSOR MOUNTED FLEXIBLE GUIDEWIRE - A flexible guidewire comprising a hollow tube, having a proximal section and a distal section, the distal section having a distal tip, the outer diameter of the distal section gradually decreasing toward the distal tip, the outer diameter of the distal tip being larger than the smallest outer diameter of the distal section, the flexible guidewire further comprising a plug coupled with the distal tip of the hollow tube for creating a non-traumatic tip, and the flexible guidewire further comprising a tubular spring, being place around the distal section of the hollow tube for maintaining the outer diameter of the hollow tube over the length thereof and for supporting compressive loads.04-25-2013
20130102890System and Method for Visualizing Catheter Placement in a Vasculature - A system for advancing a needle through a vasculature to an injection site at the heart of a patient includes a guide catheter with a reflective distal tip. Also included is an imaging unit that is mounted on the catheter to radiate an energy field. Structurally, a distal portion of the catheter is biased to bend into a predetermined configuration that will position the distal end of the catheter for interception by the energy field. If necessary, coincidence of the reflective tip with the energy field is established by moving the energy field along the length of the guide catheter. With coincidence, the reflective tip reflects a signal that is useful for advancement of the needle 04-25-2013
20130102891SYSTEM AND METHOD FOR GUIDED ADAPTIVE BRACHYTHERAPY - A system and methods for adaptive placement of a treatment element include a placement device (04-25-2013
20130102889Systems and Methods for Ultrasound-Based Medical Device Assessment - Systems and methods for assisting the placement of a catheter within the body of a patient through the use of an ultrasound imaging system are disclosed. In particular, the systems and methods described herein enable a clinician to determine, prior to insertion of the medical device, how much of the device will be disposed within the vessel, thus enabling the clinician to choose a catheter with suitable length. In one embodiment, an ultrasound imaging system for assisting with placement of the medical device comprises a console, a probe for producing an image of a target location, and a processor. The processor provides to a user proximity information relating to the anticipated proximity of the medical device to the target location prior to insertion of the medical device. A display is included for depicting the image, target location depth, and the proximity information of the medical device to the target location.04-25-2013
20130131500IN-SITU PROXIMITY RECOGNITION APPARATUS - The present disclosure is directed to a medical device comprising an elongate member having a proximal portion and a distal portion, at least one adapter operably coupled to the elongate member, said adapter including at least one inductor configured to convert electromagnetic energy into an electrical current, and at least one indicator operably coupled to said inductor.05-23-2013
20130131502BLOOD VESSEL ACCESS SYSTEM AND DEVICE - An access system and device having a needle injector pivotally attached to an ultrasound transceiver is operated to place a sterilizable needle or needle/cannula unit within a blood vessel by a single user-device operator in which the blood vessel is made visible in a monitor image by ultrasound insonification. A guidance template having an expected path trajectory is overlapped on at least one of a transverse short axis, a longitudinal long axis, or a three-dimensionally imaged blood vessel that illustrates the predicted path of the needle or needle with overlapping cannula when it undergoes movement implemented by a controller located on the needle injector. In alternate embodiments the needle injector, ultrasound transceiver, and needle or needle/cannula unit may be contained within a flexible sheath that is capable of being sterilized.05-23-2013
20130131501NEURO-VASCULATURE ACCESS SYSTEM AND DEVICE - A neuro-vasculature access system and device for placing a cannula adjacent to a nerve. The neuro-vasculature access system and device includes a needle injector pivotally attached to an ultrasound transceiver which is operated to place a sterilizable needle or needle/cannula unit within the neuro-vasculature of a patient by a single user-device operator in which the neuro-vasculature is made visible in a monitor image by ultrasound insonification. A guidance template having an expected path trajectory is overlaid on at least one of a transverse short axis, a longitudinal long axis, or a three-dimensional image of the neuro-vasculature and predicts path of the needle or needle with overlapping cannula when it undergoes movement implemented by a controller located on the needle injector. The needle injector, ultrasound transceiver, and needle or needle/cannula unit may be contained within a flexible sheath capable of being sterilized.05-23-2013
20130131499APPARATUS, SYSTEM AND METHOD FOR IMAGING AND TREATMENT USING OPTICAL POSITION SENSING - An apparatus, system and method for determining a position includes a transducer device (05-23-2013
20130131504SOFT BODY AUTOMATIC REGISTRATION AND SURGICAL MONITORING SYSTEM - A surgical hardware and software monitoring system and method allows for surgical planning while the patient is available for surgery, for example while the patient is being prepared for surgery so that the system may model the surgical site. In one embodiment, the model may be used to track contemplated surgical procedures and warn the physician regarding possible boundary violations that would indicate an inappropriate location in a surgical procedure. In another embodiment, the monitoring system may track the movement of instruments during the procedure and in reference to the model to enhance observation of the procedure. In a further embodiment the monitoring system can be used to model and track the changes in the surgical site itself.05-23-2013
20130158390ULTRASONIC NEEDLE GUIDING APPARATUS, METHOD AND SYSTEM - An apparatus is provided. The apparatus comprises a vibrator configured to vibrate a needle, an ultrasonic scanhead configured to transmit ultrasonic pulses and to receive return signals, and an ultrasonic system coupled to the ultrasonic scanhead. The ultrasonic system comprises a transmitter and receiver module coupled to the ultrasonic scanhead, a displacement estimation module coupled to the transmitter and receiver module, and a display coupled to the displacement estimation module. The transmitter and receiver module is configured to supply energizing pulses to the ultrasonic scanhead to transmit the ultrasonic pulses and to receive electrical signals produced by the ultrasonic scanhead according to the return signals. The displacement estimation module is configured to calculate motion displacements based on phase differences of the electrical signals. The display is configured to display an image according to the motion displacements.06-20-2013
20130158388NEEDLE GUIDANCE FOR MOLECULAR IMAGING - A system and method for biopsy or other needle guidance procedures for molecular imaging. A molecular imaging system having one or more radiation detectors for scanning tissue within a region of interest is provided, as well as a hollow needle for performing a medical procedure on the tissue, and a radioisotope in substantially liquid form. The radioisotope is introduced into the lumen of the needle, and the radiation emitted from the radioisotope contained in the needle lumen is detected using the molecular imaging system so that the needle can be guided into the region of interest.06-20-2013
20080200801Mapping Movement of a Movable Transducer - A catheter probe includes a transducer configured for at least one cycle of movement within the probe and a sensor that is at least partially supported within the probe for identifying a position of the transducer during the at least one cycle of movement. A method of mapping movement and a test fixture are also presented.08-21-2008
20130150712ASSEMBLIES AND METHODS - A needle assembly comprises a metal needle (06-13-2013
20100286507DETERMINING THE POSITION OF A NEEDLE - An arrangement for determining the position of a needle in an organ system and a method utilizing the arrangement in cosmetic treatment or cosmetic surgery. The arrangement (11-11-2010
20100286506METHOD FOR DETERMINING A POSITION OF AN INSTRUMENT WITHIN A BODY CAVITY - A method for determining the depth, direction, and/or angle of an instrument inserted into a cavity in which a user compares the light output of a light source assembly at a distal end of the instrument with known light outputs for that light source assembly. The instrument may include a plurality of light source assemblies having light outputs of different colors and intensities. The instrument may be an introducer that enables a port, e.g., a foam port, to be accurately positioned within an incision.11-11-2010
20110275930SYSTEMS AND METHODS FOR IDENTIFYING AND LOCATING AN IMPLANTED DEVICE - A system for identifying an attribute of an implanted medical device, such as an access port is disclosed. In one embodiment, the identification system comprises a marker included with the implanted medical device, wherein the marker relates to an attribute of the implanted medical device. An external detection device is also included, comprising a signal source that emits an incident electromagnetic signal for impingement on the marker of the implanted medical device, a detector that detects a return signal from the marker resulting from impingement of the incident electromagnetic signal, and a user interface for conveying information relating to the attribute based on detection of the return signal. In the case of an implantable access port, for instance, the described system enables information, such as the ability of the port to withstand power injection of fluids therethrough, to be ascertained even after the port has been subcutaneously implanted within the patient.11-10-2011
20110237936Method and Apparatus for Guiding an External Needle to an Implantable Device - A support tool or a supply assembly that delivers a functional fluid to a patient includes an antenna array for receiving or sensing a navigation field. The navigation field can be generated from a localizer. The localizer can be incorporated or included in an implanted device.09-29-2011
20130150708Selectable Orientation Bent Tip Calibration-Free Probe - A probe is provided. The probe may include a shaft portion rotatably attachable to a position sensing device, a nonlinear portion at least partially removed from a center axis of the shaft portion, and a tip disposed at a distal end of the nonlinear portion and positioned on the center axis. The nonlinear portion may be selectably rotatable about the center axis to one of a plurality of rotational orientations. The tip may have a substantially constant position relative to the position sensing device.06-13-2013
20130150709ULTRASOUND CT REGISTRATION FOR POSITIONING - A bone registration system is disclosed. The bone registration system may have a device including a scanner arranged to scan a target surface area of bone to obtain scan data and a first communication component. The registration system may have also a first marker positionable on a first portion of bone. The first marker may include a second communication component arranged to transmit a location signal for indicating a position of the first marker in a plurality of dimensions relative to the device. The system may have also a registration unit that compares the scan data with surface data of the bone to generate position data identifying overlapping elements of the scan data relative to the surface data, determines location data from the location signal and determines a location of the first marker on a surface of the bone using the position data and the location data.06-13-2013
20130150710SURGICAL NAVIGATION FOR REPAIR OF HEART VALVE LEAFLETS - To improve the overall navigation process for minimally invasive repair of heart valve leaflets, an augmented reality technique capable of providing a robust three-dimensional context for transesophogeal echocardiography data has been developed. In the context of various embodiment of the invention, augmented reality essentially refers to a system in which the primary environment is virtual but the environment is augmented by real elements. In this real-time environment, the surgeon can easily and intuitively identify the tool, surgical targets, and high risk areas, and view tool trajectories and orientations.06-13-2013
20130150711NON-INVASIVE MEDICAL CONDITION MONITORING APPARATUS - Embodiments of the present invention may provide a detector device including a communication interface to couple the detection device to an external antenna device. The detector device may detect medical condition(s) by performing a reference scan and a subsequent target scan. The target scan may be compared to the reference scan, and deviations from the reference scan may indicate the presence of the medical condition(s). According to embodiments of the present invention, the detection device may continuously monitor for medical condition(s) by performing an initial reference scan and subsequent target scans. Each target scan may be compared to the reference scan, and deviations from the reference scan may indicate the presence of the medical condition(s) or a change in the medical condition(s).06-13-2013
20120259209ULTRASOUND GUIDED POSITIONING OF CARDIAC REPLACEMENT VALVES - Methods and apparatuses are disclosed for positioning a valve or other device in a patient's body (e.g., in the patient's heart) using an ultrasound system in combination with position sensors. One position sensor is mounted in the ultrasound probe so that a geometric relationship between the position sensor and the ultrasound transducer is known, and another position sensor is mounted in the device installation apparatus so that a geometric relationship between the position sensor and the device is known. The device's position with respect to the imaging plane is determined based on the detected positions of the position sensors and the known geometric relationships. Images of the imaging plane are displayed, and an indication of the device's position with respect to the imaging plane is outputted.10-11-2012
20130137972IMPLANTABLE MARKER FOR A SURGICAL NAVIGATION SYSTEM, THE MARKER HAVING A SPIKE FOR REMOVABLY SECURING THE MARKER TO THE TISSUE TO BE TRACKED - A marker for use with a surgical navigation system for tracking the tissue with which the marker is associated. The overall dimensions of the mark is such that it is shaped to be disposed below the skin of the patient in which the marker is implanted. The marker has a stem or a spike that allows the marker to be implanted in hard tissue such as bone. A head, containing navigation system components is located above the stem or spike. Once the procedure is completed the marker is removed from the patient by breaking the head free from the stem Alternatively the head may be rotated to cause the whole of the marker to break free from the bone in which the marker is implanted.05-30-2013
20100317964BIOPSY GUIDANCE BY ELECTROMAGNETIC TRACKING AND PHOTONIC NEEDLE - A system for providing integrated guidance for positioning a needle in a body has two levels of guidance: a coarse guidance and a fine guidance. The system comprises a non-invasive tracking system (12-16-2010
20100317963ENDOSCOPIC ULTRASOUND-GUIDED STENT PLACEMENT DEVICE AND METHOD - A system and method for ultrasound-guided placement of a stent are provided. The system includes an echogenic cannula element that may include an echogenically-enhanced cannula that may be embodied as a piercing-tipped needle and/or an echogenically-enhanced stylet, where an echogenically-enhanced cannula element portion is near the distal cannula end. A stent is disposed about the echogenically-enhanced cannula element portion, such that the stent can be navigated to a target site using ultrasound imaging of the echogenically-enhanced cannula element portion.12-16-2010
20120283555MULTIPLE CHANNEL TRACHEAL TUBE PLACEMENT DEVICE AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may employ sensing techniques for determining a distance between the inserted tube and an anatomical structure such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. Because a tracheal tube may rotate within the trachea, the sensing information may be gathered from multiple locations on the tracheal tube for a rotation-independent measurement technique.11-08-2012
20120283553Echogenically Enhanced Device - Devices with enhanced visualization in ultrasound imaging are provided.11-08-2012
20120283552SENSOR ASSEMBLY TETHERED WITHIN CATHETER WALL - A distal tip assembly for an elongate medical device having an axis comprises a shaft having a proximal end portion, a distal end portion, a wall, and a central lumen extending axially between said proximal end portion and said distal end portion. The distal tip assembly further comprises a position sensor disposed in an outer sleeve such that the sensor can shift relative to the sleeve. The sleeve is disposed at least in part in the wall and is substantially fixed thereto.11-08-2012
20130158389MULTI-SEGMENT SLANT HOLE COLLIMATOR SYSTEM AND METHOD FOR TUMOR ANALYSIS IN RADIOTRACER-GUIDED BIOPSY - A system and method for molecular breast imaging (MBI) provides enhanced tumor analysis and, optionally, a real-time biopsy guidance. The system includes a detector head including a gamma ray detector and a multisegment collimator in a collimator frame. The collimator contains multiple collimation sections that have respectively different collimating characteristic and that are individually repositionable with respect to the detector. An image of the tissue acquired with the system may include spatially separate image portions containing image information about the same portion of the imaged tissue. A system of mounting the multisegment collimator in the detector head includes a collimator tray that is laterally moveable within the frame and/or slidable in and out of the frame.06-20-2013
20130184568DEVICE AND METHOD FOR DILATING AN AIRWAY STENOSIS - A medical device and a system and for dilating a stenotic airway of a patient are described. The medical device comprises a proximal end, a distal end, and a shaft system having an inflation lumen and a ventilation lumen the proximal end. The shaft system has a proximal shaft section and a distal shaft section. An inflatable balloon is attached to the distal shaft section in a position that is proximal to the distal end. The ventilating tip is distal to the balloon on the distal shaft section and has one or more radially facing openings. A method for treating a stenotic airway includes inserting the medical device into a patient's airway, and dilating and ventilating the airway.07-18-2013
20130184569Method for producing an electrophysiological map of the heart - Methods and systems for producing an electrophysiological map of a heart of a patient are disclosed. An example method may include determining a target location and an orientation of a catheter tip, confirming that the tip is located at the target location, measuring the heart parameter value at each of the target locations, and superimposing a plurality of representations of the heart parameter value. Confirmation that the tip of the catheter is located at a target location can be accomplished by comparing the current location of the tip with the target location, a corresponding heart parameter value being measured at each of the target locations by a heart parameter sensor, and the representations of the heart parameter value being superimposed on an image of the heart at the target location to produce the electrophysiological map.07-18-2013
20130184567SYSTEMS AND METHODS OF POSITION AND MOVEMENT DETECTION FOR UROLOGICAL DIAGNOSIS AND TREATMENT - Systems and methods of detecting position and movement of the bladder and urethra are provided. In one embodiment, a system is provided including a flexible tube, or catheter, with one or more MEMS sensors and an RF antenna embedded thereon; and an RF receiver located external to the flexible tube. The sensors in the flexible tube can be connected to external electronics, which are in turn connected to a computing device. The MEMS sensors provide motion detection and the RF sensors provide position/distance detection. The MEMS sensors can include, but are not limited to, one or more accelerometers, gyroscopes, stress sensors, tilt sensors, and/or pressure sensors. In operation, the flexible tube is inserted into the bladder through the urethra to detect the location of the bladder neck and track the motion and/or shape of the urethra. The results of the tracking can be provided on a display.07-18-2013
20110282187ELECTRODE DISPLACEMENT DETERMINATION - Methods and systems for determining whether a location of multiple current injecting electrodes has changed are disclosed herein.11-17-2011
20130123614Location Tracking of a Metallic Ojbect in a Living Body - A method and apparatus are provided for determining and tracking location of a metallic object in a living body, and then directing a second modality such as ultrasound waves to the determined location. The metal detector may be a radar detector adapted to operate on a living body. The adaption may include disposing a transfer material having electromagnetic properties similar to the body between the radar detector and the living body, ECG gating the radar detector, and/or employing an optimal estimator with a model of expected stent movement in a living body. Applications include determination of extent of in-stent restenosis, performing therapeutic thrombolysis, or determining operational features of a metallic implant.05-16-2013
20130123613Magnetic Particle Heating System And Method For Occlusion Of The Fallopian Tube - In a magnetic particle heating method for occlusion of the Fallopian tubes, biocompatible magnetic particles are delivered transcervically to the entrance of the Fallopian tube. Placement of the particles (e.g., magnetic nanoparticles) in the Fallopian tube is confirmed, and a coil is positioned about or proximate the patient's abdomen. Alternating current is applied to the coil to couple magnetic energy into the nanoparticles, heating the nanoparticles and causing thermal injury to the Fallopian tube. Temperature within the Fallopian tube may be monitored during heating, to prevent overheating, or alternating current may be applied for a predetermined treatment time, with or without temperature monitoring. Each Fallopian tube may be treated with nanoparticles and the two tubes heated simultaneously, or the tubes may be sequentially treated and heated. Treatment may be visualized via in-office hysteroscope, fluoroscopy or ultrasound. Thermal injury to the Fallopian tube mucosa occludes the tube and completes sterilization.05-16-2013
20110295106System and Method for Visualizing Catheter Placement in a Vasculature - A system for advancing a needle through a vasculature to an injection site at the heart of a patient includes a guide catheter with a reflective distal tip. Also included is an imaging unit that is mounted on the catheter to radiate an energy field. Structurally, a distal portion of the catheter is biased to bend into a predetermined configuration that will position the distal end of the catheter for interception by the energy field. If necessary, coincidence of the reflective tip with the energy field is established by moving the energy field along the length of the guide catheter. With coincidence, the reflective tip reflects a signal that is useful for advancement of the needle from the guide catheter and into the injection site.12-01-2011
20110313283APPARATUS AND METHOD FOR TARGETING A BODY TISSUE - An apparatus for targeting a desired target site on a body tissue that separates a first body cavity from a second body cavity of a patient includes a catheter having a longitudinally extending catheter lumen and adapted to provide access to the first body cavity. A framing member has a collapsed condition in which the framing member is adapted for insertion into the first body cavity through the catheter lumen and an expanded condition in which the framing member is adapted for placement within the first body cavity. The framing member has a framing member body. At least one target point is carried by the framing member and is adapted for placement adjacent the desired target site. At least one target pathway is attached to at least one target point. At least a portion of the target pathway extends through the catheter lumen. The target pathway is substantially spaced apart from the framing member body. A method of using the apparatus is also described.12-22-2011
20110313282Ultrasound for Surgical Cranial Applications - The present disclosure relates generally to equipment and procedures in the field of surgery and/or diagnostics and, more particularly, to instruments, systems, and methods for undertaking surgical and/or diagnostic procedures that involve and/or are in proximity to the brain, e.g., cranial procedures and/or surgery. The disclosed devices generally include a handle member and an elongated probe that includes an ultrasound transducer. The devices may be used in conjunction with K-wires/guidewires, tubular members, e.g., EVD catheters and/or ventricular drains, endoscopes/cameras, and accessory items such as curettes, probes, knives, suction devices, scissors, cautery units, forceps, grasping devices and the like.12-22-2011
20110313281Instrument for Image Guided Applications - A trackable medical instrument for use in a computer assisted image guided surgery system having a digitizer for tracking the position of the instrument in three dimensional space and a display providing an indication of the position of the instrument with respect to images of a body part taken preoperatively, wherein the instrument comprises a tracking array located distally of a rotatable, axially fixed drive handle.12-22-2011
20110313280OPTICAL CONTACT SENSING IN MEDICAL PROBES - A method for contact sensing includes transmitting optical radiation from an optical emitter coupled to a distal tip of medical probe that is positioned within a body cavity. A signal, which is indicative of a reflection of the optical radiation from tissue in the body cavity, is received from an optical detector coupled to the distal tip. A quality of contact between the distal tip and the tissue is assessed responsively to the signal.12-22-2011
20130190609ECHOGENIC MEDICAL DEVICE - An echogenic medical device includes a shaft having a proximal portion, a distal portion, first and second opposing longitudinal sides, and a passageway extending therethrough. The distal end includes a beveled opening communicating with the passageway, and extending between a distal tip portion disposed along the first longitudinal side and a heel portion disposed along the second longitudinal side. A first echogenic region extends circumferentially around the shaft at the distal portion. The first echogenic region is structured for providing a signal visible along the circumference of the shaft under ultrasound visualization. A second echogenic region extends along a length of the second longitudinal side and is substantially aligned with the heel portion. The second echogenic region is structured and arranged for providing a generally linear signal visible under ultrasound examination along the second longitudinal side, and substantially not visible along the first longitudinal side.07-25-2013
20130190610ULTRASOUND DIAGNOSTIC APPARATUS AND METHOD - An ultrasound diagnostic apparatus is provided. The ultrasound diagnostic apparatus includes a fluid position detection unit configured to detect a position of fluid in a subject, a biopsy needle position detection unit configured to detect a position of a biopsy needle to be inserted into the subject, a distance calculation unit configured to calculate a distance between the fluid and the biopsy needle, based on the detected position of the fluid and the detected position of the biopsy needle, and a notice unit configured to generate a warning when the distance calculated by the distance calculation unit is smaller than a predetermined threshold value.07-25-2013
20130190611METHOD FOR DETERMINING A DEVIATION OF A MEDICAL INSTRUMENT FROM A TARGET POSITION - In a method for determining a deviation of a medical instrument from a target position, in an image of an implant located in the body of a patient created with an imaging system, a virtual model of the implant is fitted at the correct location and thus a location of the implant is determined in the imaging system. On a basis of the location of the virtual model in the imaging system and a target position for an instrument selected as a fixed position relative to the virtual model, the location of the target position in the imaging system is determined. A video image of the instrument is created by a recording device and its current location in relation to the recording device is determined from this. By a geometrical relationship between the recording device and the imaging system, a deviation of the instrument from the target position is determined.07-25-2013
20130190612PROCESSING OF INTERVENTIONAL RADIOLOGY IMAGES BY ECG ANALYSIS - A method of processing images for interventional imaging, wherein a region of interest is visualized, is provided. The method comprises acquiring a series of 2D images of the region of interest in a patient during at least one respiratory phase, acquiring an electrocardiographic signal which is synchronized with the acquisition of the series of 2D images, processing the electrocardiographic signal to estimate at least one deformation phase of the region of interest induced by the patient's respiratory movement, and registering the different successive 2D images in relation to the estimated deformation phase.07-25-2013
20120029343INDUCTIVE COIL DEVICE ON FLEXIBLE SUBSTRATE - A device includes a flexible substrate, N coiled conductors, and a plurality of folding regions. The N coiled conductors are deposited on the flexible substrate and connected in series by conductive interconnects. N is greater than 1. Each of the folding regions is defined by a separation distance between adjacent ones of the N coiled conductors. The conductive interconnects traverse the folding regions between the N coiled conductors to connect the N coiled conductors in series. The flexible substrate is folded such that the N coiled conductors form a stack of N coiled conductors.02-02-2012
20130197355METHOD OF CONTROLLING NEEDLE GUIDE APPARATUS, AND ULTRASOUND DIAGNOSTIC APPARATUS USING THE SAME - A method of controlling a needle guide apparatus for assisting insertion of a needle, the method including: setting target coordinates in which the tip of the needle is located inside an object to be diagnosed; and adjusting a position of the needle guide apparatus based on the set target coordinates, wherein the needle guide apparatus is connected to a probe for capturing an ultrasound image of the object to be diagnosed.08-01-2013
20130197356FIDUCIAL PLACEMENT SYSTEM AND SPLAYED STYLET - A fiducial deployment system may include one or more of a needle including a dimpled retention structure configured to releasably retain a plurality of fiducials, each of which includes a central aperture (which may be embodied as a groove or similar opening); a retention/deployment stylet that traverses through each fiducial's central aperture and releasably engages a distalmost fiducial of the plurality of fiducials with a splayed distal stylet end; a pusher cannula member; and echogenic dimpling and/or other echogenic-enhancing features on at least a distal portion of the needle.08-01-2013
20130197353RADIOPAQUE MARKER FOR A CATHETER - Radiopaque marker for a catheter includes a collar having a ring shape defining a longitudinal center axis therethrough and at least one helical member extending longitudinally from the collar. A second collar can be provided spaced longitudinally from the first collar. Additionally, a second helical member can extend longitudinally from the collar and be coaxially intertwined with the first helical member in a double helical configuration. The helical member can define a compression spring structure having longitudinal, transverse, and torsional flexibility. A catheter having such a marker and a method of making the marker are also provided.08-01-2013
20130197354MINIMALLY INVASIVE TREATMENT OF MITRAL REGURGITATION - A method of guiding a catheter during a treatment procedure includes acquiring scan data of a patient volume in position for the treatment procedure, registering volume data of the patient volume to the scan data, acquiring fluoroscopic data for the patient volume during the treatment procedure, and generating a volume representation of the fluoroscopic data during the treatment procedure. Generating the volume representation includes superimposing the fluoroscopic data on the volume data based on the registering. The volume representation of the fluoroscopic data is displayed, the volume representation showing a position of a mitral valve clip carried by the catheter relative to the patient volume.08-01-2013
20130197357MULTIPLE MEDICAL DEVICE GUIDANCE - A system and method for providing image guidance for placement of one or more medical devices at a target location. The system receives emplacement information of medical devices within a predetermined area. The system calculates a viewing angle in a virtual 3D space of a plurality of virtual medical devices corresponding to the plurality of medical devices. The system also causes a display device to display the plurality of virtual medical devices based at least on the calculated viewing angle.08-01-2013
20120035467CATHETER ENTANGLEMENT INDICATION - A method includes, while an operator of an elongated probe, having proximal and distal ends, manipulates the proximal end so as to move the distal end within a body of a patient, automatically measuring a cumulative angle of rotation that is applied by the operator to the proximal end. An indication of the cumulative angle of rotation is presented to the operator.02-09-2012
20120035466CATHETER WITH FLEXIBLE TETHER AND INTRODUCER FOR A CATHETER - A magnetically-guided catheter includes a tip positioning magnet in the distal electrode assembly configured to interact with externally applied magnetic fields for magnetically-guided movement. A magnetically-guided mapping catheter includes an electrically-conductive capsule in the form of a casing that includes a distal ablation surface and isolates the positioning magnet from bio-fluids to prevent corrosion. An open irrigation ablation catheter includes an isolated manifold that isolates the positioning magnet from contact with irrigation fluid to prevent corrosion. A device and method to manufacture a magnetically driven electrode-catheter with flexible tethering includes one or more KEVLAR® fibers, distributed centrally or peripherally within a catheter shaft and oriented longitudinally, transversely, angularly or spirally. A C-shaped extruded catheter introducer (and re-introducer) includes a longitudinally-extending opening for insertion of a magnetically-guided catheter, removal of the introducer from the catheter and which is constructed to facilitate its re-use in a medical procedure.02-09-2012
20130204124STEERABLE FLEXIBLE NEEDLE WITH EMBEDDED SHAPE SENSING - A surgical system includes a flexible steerable needle and a shape sensor for measuring the shape of the needle. The surgical system can be manual (e.g., laparoscopic), robotic, or any combination of the two. By directly measuring the shape of the needle, complex and potentially inaccurate modeling of the needle to determine trajectory and insertion depth can be avoided in favor of much more robust direct measurement and modeling of needle shape and/or pose.08-08-2013
20120095330METHOD AND SYSTEM FOR POSITION DETERMINATION - A system for tracking a device can include a medical device for placement in a target anatomy of a patient, one or more sensors in proximity to and connected to the medical device, wherein positioning data associated with the medical device is generated by the one or more accelerometric sensors, and a processor for determining at least one of a position and an orientation of the medical device based on the positioning data.04-19-2012
20120095329Biopsy apparatus, phantom, spatial range measuring apparatus, and spatial range measuring method - A biopsy apparatus includes a biopsy needle for insertion into an object to be examined in order to sample tissue of a biopsy region in the object, and a spatial range measuring section, which measures a spatial range within which the biopsy needle is capable of sampling the tissue of the biopsy region, based on an image of a phantom that simulates the object, which is captured after the biopsy needle has been inserted into the phantom and a portion of the phantom has been extracted.04-19-2012
20130211242METHOD AND SYSTEM FOR RESTORING BODY PARTS - The present relates to a method and system for determining the position and orientation of implants located in a body part of a patient. The method and system comprise determining voxels having an intensity value corresponding to implants in a three-dimensional radiographic representation of the body part. The method and system further comprise generating multiple random virtual implants, providing a score for each virtual implant, until obtaining a score that identifies implants. The score is based on a number of voxels having an intensity value corresponding to implants contained in each generated virtual implant. And the method and system comprise determining, based on the score of virtual implants, the position and orientation of the implants located in the body part.08-15-2013
20130211243LANDMARKS FOR ULTRASOUND IMAGING - An ultrasound imaging system has a 3D location system and a data store for recording locations within a patient. Navigation to target locations is facilitated by providing graphical elements superposed on a 2-dimensional image. The size and/or color of the graphical elements are controlled in real time based on distance of the target location(s) from a current image plane. This provides intuitive visual feedback and can be achieved with low computational requirements.08-15-2013
20130211244Methods, Devices, Systems, Circuits and Associated Computer Executable Code for Detecting and Predicting the Position, Orientation and Trajectory of Surgical Tools - The present invention includes methods, devices, systems, circuits and associated computer executable code for detecting and predicting the position and trajectory of surgical tools. According to some embodiments of the present invention, images of a surgical tool within or in proximity to a patient may be captured by a radiographic imaging system. The images may be processed by associated processing circuitry to determine and predict position, orientation and trajectory of the tool based on 3D models of the tool, geometric calculations and mathematical models describing the movement and deformation of surgical tools within a patient body.08-15-2013