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Having tensioning means to alter conduit shape

Subclass of:

604 - Surgery

604019000 - MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.)

604048000 - Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin

604930010 - Material introduced or removed through conduit, holder, or implantable reservoir inserted in body

604950010 - Conduit with self-propelled or remote control means

Patent class list (only not empty are listed)

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Entries
DocumentTitleDate
20130030363SYSTEMS AND METHODS UTILIZING SHAPE SENSING FIBERS - Systems and methods that utilize shape sensing fibers are described herein. In certain variations, a fiber may include a service loop or other length that allows for sliding or displacing of a fiber within the lumen of an elongate instrument when the distal portion of the elongate instrument is articulated. Systems and methods for registering a shape sensing fiber, including registration fixtures and registration techniques are also described herein.01-31-2013
20130030362VARIABLE STIFFNESS GUIDEWIRE SYSTEMS AND METHODS - Guidewires, actuators and methods of using the guidewires and actuators are described. These tools and methods allow a user to select and maintain different guidewire stiffness characteristics such that a single guidewire can address a range of access capabilities.01-31-2013
20130085444Medical Device and Guide Device Therefor - A guide device including a polymer and/or plastic tube, in particular a tube containing a polysiloxane, through the continuous opening of which a cable which is moveable in the continuous opening has been routed. To markedly reduce the wear caused by the cable rubbing in the continuous opening of the tube, a coating is provided on the outer surface of the cable and/or the inner surface of the continuous opening, which includes mainly particles that are substantially spherical and/or cylindrical and can move freely at least on the particular surface (e.g., outer surface of the cable and/or inner surface of the continuous opening). Furthermore, a medical device containing such a guide device, and a method for manufacturing the guide device or the medical device are described.04-04-2013
20130079711ENDOSCOPE MANIPULATION ADAPTER - An endoscope manipulation adapter includes a support frame having a first end configured to be rigidly fixed relative to a handpiece of a flexible endoscope, and a manipulation assembly arranged at a second end of the support frame. The manipulation assembly defines a channel for at least one of a flexible endoscope shaft or a flexible endoscope insertion component to traverse through in an axial direction to assist in manipulating the at least one of the flexible endoscope shaft or the flexible endoscope insertion component during use of the flexible endoscope.03-28-2013
20130041314Steerable Catheters - A steerable catheter and a method of steering a catheter are provided. The steerable catheter includes a flexible elongate shaft having a proximal end portion, a distal end portion and a cable lumen extending from the proximal end portion to the distal end portion. The steerable catheter includes a control cable having a first portion and a second portion, the first portion of the control cable fixed in position relative to the shaft and the second portion movable relative to the shaft and at least a portion of the second portion is extendable through at least a portion of the cable lumen and extendable through the opening. The control cable has a first position where the at least the portion of the second portion is axially extendable away from a wall of the shaft and a second position for delivery of the catheter.02-14-2013
20090156995STEERABLE ACCESS SHEATH AND METHODS OF USE - The present invention provides devices, systems, methods and kits for endoscopically accessing a body cavity and providing a directed pathway toward a target tissue within the cavity. The directed pathway is provided by an access sheath which is positioned in a desired configuration, generally directed toward the target tissue. Depending on the location of the target tissue and the desired angle of approach, the access sheath may be required to maintain one or more curves in one or more planes to properly direct the interventional devices. In addition, the access sheath has a locking feature to hold the sheath in place and maintain the desired configuration. Interventional devices may then be passed through the sheath to the target tissue.06-18-2009
20120184901Deflectable Variable Radius Catheters - The invention provides a deflectable catheter capable of forming many variable radius spiral forms from a single, flexible, distal end section. In one aspect, the catheter employs a variable radius control wire to extend or deform a pre-formed loop structure into a three dimensional spiral-like form or geometry. The ability of a single catheter to create a multitude of shapes and sizes allows users to access to a number of anatomical areas without changing the catheter during a procedure or treatment. In another aspect, the invention encompasses methods of producing deflectable variable radius catheters, where two or more regions of the catheter having common control wires are fused or formed onto one another.07-19-2012
20130046236STEERABLE CATHETER WITH DISTAL TIP ORIENTATION SHEATHS - A bi-directional electrophysiology catheter having improved steerability which includes orientation sheaths, or thin walled tubes, placed in diametrically opposed lumen at the distal portion of the catheter for producing in-plane deflection of the distal portion of the catheter.02-21-2013
20130090598SHAPE-TRANSFERRING CANNULA SYSTEM AND METHOD OF USE - The present invention is directed to a novel shape-transferring cannula system, which provides access to tortuous and unsupported paths. The shape-transferring cannula system and method enables exploration of hollow body structures, and creates a custom-contoured access port for insertion and removal of, for example, diagnostic, surgical, or interventional instruments to and from a site within the body to which the physician does not have line-of-sight access.04-11-2013
20090326450STEERABLE MEDICAL DEVICE - A steerable medical device is used to controllably introduce a guidewire or other medical instrument into a body of a patient and direct placement of the guidewire or other medical instrument in the body of the patient. The steerable medical device can include an elongated member, a steering mechanism, and an attachment member. The elongated member extends along a longitudinal axis and comprises a deflectable distal portion that is deflectable off of the longitudinal axis. The steering mechanism is adapted to control longitudinal and rotational movement of the elongated member and to control off-axis deflection of its deflectable portion. The attachment member is removably couplable to another medical device. The attachment member is moveably coupled to the steering mechanism and the elongated member.12-31-2009
20090306587Sleeve Steering and Reinforcement - A sleeve steering and reinforcing device (12-10-2009
20130072868Articulating Handle for a Deflectable Catheter and Method Therefor - A catheter assembly includes a handle assembly, and a catheter body coupled with the handle assembly, where the catheter body extends to a deflectable distal end portion, and the deflectable distal end is controllable by a flexible element. A lever actuator member is operatively coupled with the flexible element, and movement of the actuator member provides for movement of the flexible element.03-21-2013
20090270800Aspiration Catheter Having Selectively Deformable Tip - An aspiration catheter includes an elastically deformable distal tip transformable between an orthogonal configuration and an oblique configuration to selectively and controllably appose the tip with thrombus or other matter to be aspirated. A core wire is slidably disposed in a core wire lumen within the catheter and is operably connected to the catheter distal tip. The core wire is controlled from the catheter proximal end to transform the distal tip between orthogonal and oblique configurations.10-29-2009
20130165857HANDLE HAVING HUB WITH ROTATING INFUSION SIDEPORT - An introducer sheath assembly comprises a tubular sheath member having a deflectable distal end portion and a sheath member lumen, a handle assembly including a steering mechanism for deflecting the distal end portion of the sheath member, and a hemostasis valve assembly. The hemostasis valve assembly includes a side port member configured to be connected to a fluid source for introducing fluid into the sheath member lumen. The side port member is axially rotatable relative to the handle assembly and the sheath member such that the side port member can remain rotationally fixed relative to the fluid source as the handle assembly and the sheath member are rotated relative to the fluid source. The side port member may also be made transparent to allow for easy visualization of air bubbles, and is also configured to allow for evacuation of any visualized air bubbles.06-27-2013
20100130923APPARATUS AND METHOD FOR INSERTING A CATHETER - A delivery apparatus for a stimulating catheter has a conductive wire wound within a reel dispenser. The reel dispenser has a base portion and a rotating portion that are coupled at the axle with the rotating portion rotatable relative to the base portion. The proximal region of the conductive wire is in electrical connection with the axle of the dispenser. A method for delivering a stimulating catheter includes introducing the distal regions of the conductive wire and catheter into a subject, rotating the rotating portion of the reel dispenser relative to the base portion whereby the catheter and conductive wire are advanced into the subject, providing an electrical current to the conductive wire through the axle, and rewinding the rotating portion of the reel dispenser relative to the base portion whereby the conductive wire is retracted in a proximal direction through the catheter.05-27-2010
20110288477GUIDE CATHETER AND METHOD OF USE - A system for manipulating a guide catheter within a patient's nasal passages or sinus cavities includes a guide catheter formed from an elongate flexible member having a lumen passing there through. A wire guide is slidably disposed within the lumen of the guide catheter. The system further includes a steering member fixedly secured to a proximal end of the wire guide and a proximal hub secured to a proximal end of the guide catheter. The system further includes a recessed handle having a first recess for fixedly receiving the proximal hub of the guide catheter and a second recess for receiving the steering member, the second recess being dimensioned to permit axial and rotational movement of the steering member while disposed in the second recess.11-24-2011
20090312697SURGICAL SEAL WITH VARIABLE DIAMETER - A surgical access assembly dimensioned for positioning within a patient's tissue includes a seal member having an internal channel defined therein for the reception of a closure member, and an aperture extending through the seal member that is configured to removably receive a surgical object upon its insertion into the surgical access assembly. The closure member is selectively actuable to transition the seal member from a first condition, in which the aperture includes a first diameter, to a second condition, in which the aperture includes a second diameter. The second diameter is less than the first diameter and substantially approximates an outer dimension of the surgical object such that a substantially fluid-tight seal is formed therewith.12-17-2009
20090312699BI-DIRECTIONAL CATHETER ASSEMBLY AND METHOD THEREFOR - A catheter assembly includes a catheter body extending from a deflectable distal end to a proximal end, and the catheter body includes an actuator lumen. A housing is engaged to the proximal end of the catheter body. A flexible element extends from the housing through the actuator lumen to the deflectable distal end. The deflectable distal end is deflected by pushing and pulling of the flexible element. An actuator is movably coupled with the housing and connected to the flexible element. A tubular support is engaged around the flexible element and connected to the actuator, the tubular support moves with the actuator, and the tubular support substantially constrains lateral movement of the flexible element. The tubular support is telescopically received and engaged with an inner surface of the actuator lumen. The inner surface of the actuator lumen substantially constrains lateral movement of the tubular support and the flexible element.12-17-2009
20090149805DUAL-FUNCTION CATHETER HANDLE - A dual function catheter handle is provided for simultaneous movement of two control wires. The catheter handle has a handle housing having proximal and distal ends and a generally hollow interior. A core is mounted in the interior of the handle housing, the core having a longitudinal slot therethrough. A first moveable member is provided with a proximal end mounted in the interior of the handle housing and a distal end extending outside the handle housing. The first moveable member is longitudinally moveable relative to the handle housing. A second moveable member is mounted in the longitudinal slot of the core and is longitudinally moveable relative to the core and handle housing. The second moveable member has a threaded surface. A rotatable member is mounted on the handle housing. The rotatable member has a threaded inner surface that mates with the threaded surface of the second moveable member so that rotation of the rotatable member causes longitudinal movement of the second moveable member. The first moveable member and second moveable member are capable of simultaneously moving proximally relative to the handle housing.06-11-2009
20110112476DEVICE FOR REDUCING AXIAL SHORTENING OF CATHETER OR SHEATH DUE TO REPEATED DEFLECTION - A deflectable medical device incorporates a strut that is configured to reduce or eliminate axial shortening of the deflectable portion of the medical device, for example, the deflectable distal end portion of a catheter or access sheath. The strut may is coaxially disposed in the medical device in the section that is contemplated to undergo the repeated deflection. The strut provides improved column strength and axial restoration. The strut may be stent-like device, an elongate device having opposing ends coupled by a connecting lattice involving a plurality of helical connecting elements or a tube having a plurality of circumferentially-extending slots arranged in longitudinally-extending rows.05-12-2011
20110270172STEERING MECHANISM FOR BI-DIRECTIONAL CATHETER - A bi-directional catheter with nearly double the throw in its catheter tip deflection defines a puller wire travel path having a U-turn a pulley which minimizes the offset angle between the puller wire and the longitudinal axis of the control handle while maximizing the travel distance of that puller wire for any given distance traveled by the pulley drawing the puller wire. In particular, the control handle of the catheter which includes a steering assembly having a lever arm carrying a pair of pulleys for drawing corresponding puller wires to deflect the tip section of the catheter. The pulleys are rotatably mounted on opposing portions of the lever arm such that one pulley is moved distally as the other pulley is moved proximally when the lever arm is rotated. Because each puller wire is trained on a respective pulley, rotation of the lever arm causes the pulley that is moved proximally to draw its puller wire to deflect the tip section in the direction of the off-axis lumen in which that puller wire extends.11-03-2011
20110270171Steerable Medical Device Having Means For Imparting Multiple Curves in the Device - A steerable elongated medical device that is capable of forming as ā€œsā€ shaped bend and having a guidewire tip at its distal end. The devices include an outer tube extending between an outer tube proximal segment and an outer tube distal segment, having an outer tube wall forming an outer tube lumen and first and second elongated outer tube slots through the outer tube wall to the outer tube lumen. The first elongated outer tube slot has a first portion and a second portion and formed between a first outer tube slot proximal end and a first outer tube slot distal end and extending axially along the outer tube distal segment through a first outer tube slot length to define a first cutaway portion of the outer tube. The second elongated outer tube slot has a first portion and a second portion and formed between a second outer tube slot proximal end and a second outer tube slot distal end and extending axially along the outer tube distal segment through a second outer tube slot length to define a second cutaway portion of the outer tube and offset about 180 degrees from the first elongated outer tube slot. Each of the first and second outer tube slots have reinforcing sleeves, each of the reinforcing sleeves having reinforcing sleeve slot portions and reinforcing sleeve overlap portions. The medical devices further include a handle coupled to the outer tube proximal end, and a pull wire positioned within the outer tube lumen and extending between a pull wire proximal end coupled to the handle and a pull wire distal end comprising a guidewire tip, the pull wire extending through the first and second reinforcing sleeve lumens, the outer tube lumen, and a distal pull wire stop, and the guidewire tip extending distally from the distal pull wire stop, wherein the pull wire proximal end is adapted to be manipulated to separate the pull wire proximal end from the outer tube proximal end to induce a bend in each of the first and second cutaway portions.11-03-2011
20080275389Catheter Handle and a Catheter Assembly Including Such a Handle - A catheter handle (11-06-2008
20110270173ARTICULATED CATHETER - Methods and apparatuses for manipulating an elongated flexible shaft of a catheter provide ease and reliability of positioning electrodes against or near tissue. Dual-bend flexible distal tips may be used in combination with flat wires. In some embodiments, flat wires which are free to rotate upon initial bending of shaft segments are employed. In some embodiments, one or more transition segments are used to relocate the satellite lumen-to-main lumen transition of pull wires away from a change in shaft stiffness.11-03-2011
20110270170Steerable Medical Device Having Means For Imparting Multiple Curves in the Device - A steerable elongated medical device that is capable of forming as ā€œsā€ shaped bend. The devices include an outer tube extending between an outer tube proximal segment and an outer tube distal segment, having an outer tube wall forming an outer tube lumen and first and second elongated outer tube slots through the outer tube wall to the outer tube lumen. The first elongated outer tube slot has a first portion and a second portion and formed between a first outer tube slot proximal end and a first outer tube slot distal end and extending axially along the outer tube distal segment through a first outer tube slot length to define a first cutaway portion of the outer tube. The second elongated outer tube slot has a first portion and a second portion and formed between a second outer tube slot proximal end and a second outer tube slot distal end and extending axially along the outer tube distal segment through a second outer tube slot length to define a second cutaway portion of the outer tube and offset about 180 degrees from the first elongated outer tube slot. Each of the first and second outer tube slots have reinforcing sleeves, each of the reinforcing sleeves having reinforcing sleeve slot portions and reinforcing sleeve overlap portions.11-03-2011
20080262422Flexible Catheter System - A percutaneous delivery system with a high degree of flexibility is provided. In one embodiment, the system includes a catheter having a portion comprising multiple segments, linked in series by at least one connecting wire. Joints between the multiple segments provide a high degree of flexibility. In some embodiments, only a distal portion is made up of segments. In other embodiments, the whole length of the catheter is made up of segments. Manipulation of the at least one connecting wire enables manipulation of the segments to flex a portion of the catheter. In one aspect, the invention provides a delivery system that reduces the impact of the delivery system on the final release position of the implant delivered. The delivery system can be used to deploy and/or retrieve implantable medical devices, for example, patent foramen ovale (PFO) occluder.10-23-2008
20090264818CONTROLLING SHAFT BENDING MOMENT AND WHIPPING IN A TENDON DEFLECTION OR OTHER TENDON SYSTEM - A tendon deflection system including a shaft, a plurality of tendons movably disposed within the shaft, and a force-balancing element coupled to the tendons. In a first section, the plurality of tendons are arranged around the shaft at equal angles to each other and at an equal distance from the center of the shaft. The tendons operating in concert with the force-balancing element minimize the moment expressed in the first section. The second section is deflectable and includes at least one tendon, extending from the plurality of tendons in the first section, which is arranged along one side of the shaft such that the bending moment expressed in the second section is greater than the first section.10-22-2009
20090264817CONTROLLABLE ELECTRODE FOR DEEP BRAIN STIMULATION - Controllable catheter (10-22-2009
20090137953DEFLECTABLE CATHETER STEERING AND LOCKING SYSTEM - A deflectable catheter includes a catheter shaft having a deflectable distal tip. A support member is coupled around a proximal portion of the catheter shaft, and the support member includes a first brake portion extending along at least a portion of the support member. A handle is coupled around the support member. The deflectable catheter includes a carriage moveably coupled along the handle, and the carriage includes a second brake portion sized and shaped to engage with at least a portion of the first brake portion. A flexible element is coupled between the deflectable distal tip and the carriage. A biasing device is adapted to bias the second brake portion into engagement with the first brake portion.05-28-2009
20090177152Catheter Drug Delivery System and Method for Use - A steerable guide catheter system for navigation through the vasculature of a patient to the heart.07-09-2009
20080319387Method and Apparatus for Inserting a Catheter Device - The present invention relates to systems and methods for inserting a catheter device into a subject, wherein the catheter insertion system generally comprises a flexible sleeve containing a catheter tube and advancing means for advancing the catheter contained within said system in a distal direction, wherein the flexible sleeve has a sealed proximal end and a distal end which may comprise a slender passage adapted to allow passage of said catheter tube therethrough while preventing backflow of fluid into the flexible sleeve.12-25-2008
20090247942ROBOTIC CATHETER MANIPULATOR ASSEMBLY - A robotic catheter manipulator assembly may include a support member including a catheter manipulation base and a sheath manipulation base movable relative to each other and to the support member. Each respective manipulation base may be releasably connectable to a catheter cartridge and a sheath cartridge. A drive mechanism may be provided for moving the catheter and sheath manipulation bases relative to each other and to the support member. The manipulation base or the cartridge may include a first element engageable with a complementary second element slidably engaged with the other one of the manipulation base or the cartridge for controlling movement of a component connected to the cartridge. The cartridge, for example, may be a transseptal cartridge, a catheter cartridge or a sheath cartridge, and the component may respectively be a surgically insertable device such as a transseptal needle, a catheter or a sheath.10-01-2009
20090247944ROBOTIC CATHETER ROTATABLE DEVICE CARTRIDGE - A robotic catheter rotatable device cartridge may include a housing member attachable to a drive mechanism for rotating the cartridge and a catheter attached to the cartridge along an axial direction of the catheter. A slider block may be generally slidable relative to the housing and engaged with one or more steering wires for controlling movement of the catheter in a transverse direction relative to the axial direction. The catheter may include the steering wire(s) engaged therewith and movable in the transverse direction when the slider block is linearly driven in a predetermined direction.10-01-2009
20110144576CATHETER ORIENTATION CONTROL SYSTEM MECHANISMS - Catheter orientation control system mechanisms which facilitate the operation of multiple degrees of freedom of a steerable catheter system can be used for any procedure where catheter orientation relative to the body is desirable. Such systems may comprise a handle having a distal portion which is rotatable independently of the remainder of the handle to enable the handle to maintain a stationary configuration relative to the operator while the catheter distal end is torqued in any configuration by utilizing a single hand and/or single finger to effect complex configurations. Orientation indicators may be incorporated to track the deflectable distal end by visualizing the indicators through an imaging hood on the distal end corresponding to orientation markers on the control handle. Articulation of a steering mechanism in a direction relative to the orientation markers deflects the catheter distal end in a corresponding direction relative to the visualized orientation markers.06-16-2011
20120197190MEDICAL DEVICES HAVING RELEASABLE COUPLING - This invention is directed to a medical device with a handle and a catheter. The handle can include a body having a proximal end and a distal end, an actuator moveably coupled to the body, and a handle control member coupled to the actuator, wherein the actuator can be configured to move relative to the body to move the handle control member. The catheter can include a shaft having a proximal end and a distal end, wherein the proximal end of the shaft and the distal end of the body can be configured for releasable coupling. The catheter can also include a steering section located along the shaft and a catheter control member coupled to the steering section. A securing member may move relative to at least one of the handle and the catheter to releasably couple the handle control member to the catheter control member.08-02-2012
20090247943ROBOTIC CATHETER DEVICE CARTRIDGE - A robotic catheter device cartridge may include a finger or a slider block generally disposed in a channel and engaged with a steering wire. The steering wire may control movement of a component having the steering wire engaged thereto when the finger or the slider block is linearly driven in a predetermined direction. The cartridge may be a transseptal cartridge having a transseptal needle connected thereto, a catheter cartridge having a catheter connected thereto, or a sheath cartridge having a sheath connected thereto.10-01-2009
20100160858DEFLECTABLE CATHETER STEERING AND LOCKING SYSTEM - A deflectable catheter includes a catheter shaft having a deflectable distal tip. A support member is coupled around a proximal portion of the catheter shaft, and the support member includes a first brake portion extending along at least a portion of the support member. A handle is coupled around the support member. The deflectable catheter includes a carriage moveably coupled along the handle, and the carriage includes a second brake portion sized and shaped to engage with at least a portion of the first brake portion. A flexible element is coupled between the deflectable distal tip and the carriage. A biasing device is adapted to bias the second brake portion into engagement with the first brake portion.06-24-2010
20090105640Fixed Dimensional and Bi-Directional Steerable Catheter Control Handle - An apparatus for imparting a tensile force to deflect a distal portion of a catheter while maintaining its exterior dimensions may include a handle grip including a cross-section of generally predetermined exterior dimensions, and a longitudinal axis. A flexible elongate member may include proximal and distal end portions, with the proximal end portion being coupled to the handle grip. An adjustment knob may include a cross-section of generally predetermined exterior dimensions, and is rotatably coupled to the handle grip around the longitudinal axis. An elongate deflection member may be operably coupled to the adjustment knob and to the distal end portion of the elongate member. Rotation of the adjustment knob may impart a tensile force to the deflection member thereby causing the distal end portion of the elongate member to deflect from a prior configuration while maintaining the generally predetermined exterior dimensions of the handle grip and the adjustment knob.04-23-2009
20100331776Steerable Medical Delivery Devices and Methods of Use - Steerable medical delivery devices and their methods of use.12-30-2010
20100262075ARTICULATING CATHETERS - The invention provides an articulating mechanism useful, for example, for remote manipulation of various surgical instruments and diagnostic tools within, or to, regions of the body. Movement of segments at the proximal end of the mechanism results in a corresponding, relative movement of segments at the distal end of the mechanism. The proximal and distal segments are connected by a set of cables in such a fashion that each proximal segment forms a discrete pair with a distal segment. This configuration allows each segment pair to move independently of one another and also permits the articulating mechanism to undergo complex movements and adopt complex configurations. The articulating mechanisms may also be combined in such a way to remotely mimic finger movements for manipulation of an object or body tissue.10-14-2010
20110251554CONTROL HANDLE FOR A CONTACT FORCE ABLATION CATHETER - A control handle for a steerable catheter body for navigation of the catheter body through a biological lumen and manipulation at a treatment site. The control handle includes a housing assembly that houses a piston assembly and a resistance adjusting assembly. The resistance adjusting assembly can be adjusted to provide the desired frictional characteristics of the user for control of the resistance between the piston assembly and the housing assembly. In one embodiment, the piston assembly is configured to provide a frictional resistance that varies dynamically to substantially match the restorative force across the range of catheter tip deflection. Other embodiments include a vibrating member that provides tactile feedback to the operator to indicate conditions at the distal end of the catheter, such as contact force.10-13-2011
20090312698BI-DIRECTIONAL STEERABLE SHEATH - A deflectable sheath with increased range of curvature for human use is provided. The improvement focuses on the use of different durometer polymers that compose the lumen in the portion of deflection. The use of differing durometer polymers allow the deflectable sheath to be bent in a multitude of asymmetric curvature radii therefore providing the physician with a sheath that can traverse different regions of the body than with previous sheaths.12-17-2009
20100063441DEFLECTABLE CATHETER WITH BONDED CENTER STRUT AND METHOD OF MANUFACTURE FOR SAME - A catheter for diagnosing or treating the vessels found within a body or body space includes a center strut that is bonded, preferably thermally, along its longitudinal axis with the thermoplastic tubular member within which it is housed. The tubular member preferably has three layers: an inner layer, a braided layer and an outer layer. The composite catheter is made using a process in which two half-cylinder shaped mandrels are placed on each side of the center strut while the strut is heated in order to cause the thermal bonding. The bonded center strut provides in-plane deflection and improved transfer of torque to the tip of the catheter.03-11-2010
20100130924STEERABLE ACCESS SHEATH AND METHODS OF USE - The present invention provides devices, systems, methods and kits for endoscopically accessing a body cavity and providing a directed pathway toward a target tissue within the cavity. The directed pathway is provided by an access sheath which is positioned in a desired configuration, generally directed toward the target tissue. Depending on the location of the target tissue and the desired angle of approach, the access sheath may be required to maintain one or more curves in one or more planes to properly direct the interventional devices. In addition, the access sheath has a locking feature to hold the sheath in place and maintain the desired configuration. Interventional devices may then be passed through the sheath to the target tissue.05-27-2010
20100069834CATHETER WITH ADJUSTABLE DEFLECTION SENSITIVITY - A catheter that provides bi-directional steering and allows for deflection sensitivity adjustment includes a catheter body, a deflectable tip section and a control handle, wherein the control handle has a deflection member adapted for user manipulation, a deflection assembly responsive to the deflection member to draw on a tensile puller member for deflecting the tip section, and an adjustment mechanism adapted to adjust sensitivity of the deflection member. The adjustment mechanism also correspondingly adjusts a maximum degree of deflection of the tip section. The deflection assembly includes a rotatable pulley arm and two pulleys, and a deflection sensitivity adjustment mechanism with a cam device that varies a separation distance between the pulleys. The cam device is internally located in the pulley arm and is rotatable via deflection sensitivity knob by the user to increase the separation distance for greater deflection sensitivity in a deflection member user interface, or to decrease the separation distance for greater maximum degree of tip deflection.03-18-2010
20120302949OPERATION MECHANISM, ENDOSCOPE APPARATUS, AND GUIDE CATHETER - An operation mechanism includes: a longitudinal member having a channel; a subject operation section provided at a distal end side of the member; an operation section provided at a proximal end side of the member; a first transmission means connected to the subject operation section at a distal end side thereof and formed to penetrate the operation section transmitting a first driving force; a first input portion provided in the operation section and connected to a proximal end side of the first transmission means to operate the subject operation section; a second input portion provided closer to the subject operation section side of the operation section than the first input portion and operated by a medical instrument inserted through the channel; and second transmission means connected to the first input portion and the second input portion and transmits a second driving force.11-29-2012
20120277671DUAL BRAID REINFORCEMENT DEFLECTABLE DEVICE - A dual braided catheter shaft includes an inner helical braid and outer helical braid than encapsulate an axially extending steering wire there between. In one embodiment, the shaft includes an inner polymer jacket, an inner braid formed on the inner jacket, a steering wire disposed along an outside surface of the inner braid, an outer braid formed over the inner braid and steering wire assembly and an outer jacket formed on the outer braid. The braiding parameters of the inner and outer braids can be varied along the length of the catheter to provide varying mechanical properties.11-01-2012
20100004591MULTI-PLANE MOTION CONTROL MECHANISM - A hand-holdable steering mechanism is used as part of a medical device such as a catheter or an endoscope to allow movement of a steerable distal portion of the catheter or endoscope. The mechanism can include a housing and an actuation system. The actuation system is adapted for one-handed operation by a user, and it allows the user to achieve 360 degree articulation of the steerable distal portion. The actuation system can include a first actuator and a second actuator where the first and second actuators are movable with respect to each other. The first actuator can be at least partially disposed within the second actuator.01-07-2010
20100004592BI-DIRECTIONAL HANDLE FOR A CATHETER - The present invention is a catheter actuation handle for deflecting a distal end of a tubular catheter body having first and second actuation wires extending from a proximal end of the body. The handle comprises a first grip portion, a bearing assembly, and an actuator. The first grip potion includes a pivot with a pathway extending through the pivot. The pathway is generally parallel to a longitudinal centerline of the first grip portion. The bearing assembly is located on the first grip portion proximal to the pivot. The actuator is pivotally coupled to the pivot and includes first and second ends that are laterally offset from the longitudinal centerline and are on opposite sides of the centerline from each other. When the distal end of the handle is coupled to the proximal end of the body, the first and second actuation wires extend along the pathway to the bearing assembly. The bearing assembly diverts the first actuation wire to a first connection point on the actuator and the second actuation wire to a second connection point on the actuator.01-07-2010
20120203169SHAFT AND HANDLE FOR A CATHETER WITH INDEPENDENTLY-DEFLECTABLE SEGMENTS - An elongate medical device with independently-deflectable segments and a handle for manually deflecting those segments can include a shaft having a distal segment and proximal segment, at least one proximal segment deflection wire adapted to deflect the proximal segment, at least one distal segment deflection wire adapted to deflect the distal segment independent of the proximal segment, and a handle portion. The handle portion may comprise a first manual actuation mechanism coupled to the at least one distal segment deflection wire and a second manual actuation mechanism coupled to the at least one proximal segment deflection wire. Actuation of the first manual actuation mechanism may impart a tensile force on the distal segment deflection wire to cause the distal segment to deflect, and actuation of the second manual actuation mechanism may impart a tensile force on the proximal segment to cause the proximal segment to deflect.08-09-2012
20120203170MEDICAL CATHETER ASSEMBLY WITH DEFLECTION PULL RING AND DISTAL TIP INTERLOCK - A catheter assembly comprises a deflectable catheter shaft comprising a distal end and a lumen extending therethrough. The catheter assembly further comprises least one pull wire comprising a distal portion comprising a side and a distal end, wherein the side comprises a first side portion and a second side portion. The catheter assembly further comprises a distal pull assembly operatively coupled to the at least one pull wire. The distal pull assembly comprises a longitudinal axis, a first surface, and a second surface. The first side portion of the at least one pull wire is adjacent to the first surface of the distal pull assembly, and the second side portion of the at least one pull wire is adjacent to the second surface of the distal pull assembly.08-09-2012
20090171275CONTROLLING MOVEMENT OF DISTAL PORTION OF MEDICAL DEVICE - A medical device allows movement control of a distal end portion of the medical device and is adapted for one-handed operation. The medical device is capable of omni-directional control of the distal end portion of the device. The device has an elongated member including a deflectable portion at a distal end portion of the elongated member. The device also has a control portion disposed on the elongated member. This control portion can be a handle for one-handed use by an operator of the medical device. The control portion comprises an elastic element and a flexible element. Angular movement of a first portion of the control portion with respect to a second portion of the control portion results in amplification of that angular movement in the deflectable portion of the device.07-02-2009
20090171272DEFLECTABLE SHEATH AND CATHETER ASSEMBLY - The present invention relates to deflectable access sheath assembly. The present invention relates to deflectable sheaths and catheters, including a deflectable sheath access device or introducer, wherein the deflection and movement of the sheath access device is controlled through the relative movement of a plurality of sheaths with respect to one another. Moreover, the present invention relates to catheter assemblies designed for increased flexibility.07-02-2009
20100324482Torqueable and Deflectable Medical Device Shaft - A medical device shaft for connection with a handle and for insertion within a body includes an elongated, deflectable shaft having a proximal shaft portion, an intermediate shaft portion, and a distal shaft portion. The elongated, deflectable shaft includes a transition in stiffness from the proximal shaft portion to the distal shaft portion. In a preferred implementation, the shaft includes a plurality of slits that extend perpendicular to a longitudinal axis of the shaft. Varying at least one of the number of slits, the location of slits, the frequency of slits, the orientation of the slits, the size of the slits, and the depth of the slits varies the transition of stiffness.12-23-2010
20100280449FLEXIBLE AND STEERABLE ELONGATE INSTRUMENTS WITH SHAPE CONTROL AND SUPPORT ELEMENTS - An instrument having a flexible and elongated body includes at least a lumen and a flex member disposed within the lumen. The flex member may be capable of providing steering control to a first portion of the elongate body while providing load bearing support to a second portion of the elongate body. A pull wire may be disposed within the flex member, and at least a distal portion of the pull wire may be coupled to the elongate body and a proximal portion of the pull wire may be operatively coupled to a control unit. The control unit may be coupled to a proximal portion of the elongate body. In addition, a control member may be operatively coupled to the control unit such that a distal portion of the control member may be positioned near a proximal portion of the flex member. The control member may be configured to support the flex member and control the movement or displacement of the flex member. Furthermore, the flex member may be configured to selectively decouple articulation or steering forces of a first portion of the elongate body away from a second portion of the elongate body; thereby, preventing compression of the second portion of the elongate body while maintaining elasticity or flexibility of the second portion of the elongate body.11-04-2010
20100022948Steerable Catheter and Dilator and System and Method for Implanting a Heart Implant - A catheter according to one embodiment may be configured to extend through a transseptal puncture site, a left atrium, and into a left ventricle. The catheter may comprise a shaft defining at least one lumen configured to receive at least one of an implant and/or a dilator, a first steerable actuator coupled to the shaft at a position on the shaft substantially corresponding to the annulus of the mitral valve when the distal end of the shaft is disposed within the left ventricle, and a handle assembly coupled to a proximal end of the shaft. The handle assembly may comprise a first actuator coupled to the first steerable actuator. The first actuator may be configured to apply a force to the first steerable actuator to deflect the shaft about a region proximate to the first steerable actuator.01-28-2010
20110218491CATHETER WITH PULL WIRE MEASUREMENT FEATURE - An apparatus for determining a length of a portion of a steering wire disposed within a bendable medical device includes an electrical contact slidably coupled with a steering wire, an electrical source configured to transmit an electrical signal through a portion of the steering wire, and a processor configured to monitor a parameter of the electrical signal at or about the electrical contact and configured to determine a length of a portion of the steering wire using the monitored parameter.09-08-2011
20080300537METHOD AND SYSTEM FOR STEERING A CATHETER END IN MULTIPLE PLANES - A catheter extrusion includes one or more extra steering wire lumens to route one or more steering wires that facilitate steering of a distal end in more than one plane. To make room in an extrusion, for extra steering wires, the extrusion may define a smaller operational lumen. Alternatively, a designer/manufacturer may increase the size of the extrusion from to facilitate one or more extra operational lumen(s).12-04-2008
20120157915Deflectable catheter constructed to inhibit component migration - A catheter includes a shaft having at least one lumen. The lumen comprises a longitudinally-extending trough defined by a longitudinally-extending recess, within which a component is disposed, and a longitudinally extending open edge. The lumen further comprises a longitudinally-extending channel defined by a longitudinally-extending cavity and by the open edge of the trough. A planarity wire is disposed within the cavity and is configured to close the open edge of the trough to within a pre-defined tolerance that is less than the size of the component to retain the component in the recess.06-21-2012
20110066105STEERABLE KINK-RESISTANT SHEATH - A steerable kink resistant access device is provided having an elongated body and a steerable portion; methods for manufacturing the kink resistant device are also provided. The access sheath has an outside diameter sufficiently small so that it may be inserted into a body cavity or conduit. The access sheath typically has two internal lumen, a first lumen sized and configured as an access to a surgical site and a second lumen sized and configured to contain a tensioning device that, when acted upon, will deflect the steerable portion. The tensioning device may be directly or remotely attached to an actuation device that operates to control the tensioning and loosening of the tensioning device.03-17-2011
20100094209Valvuloplasty Catheter And Methods - A valvuloplasty catheter has a dog-bone shaped balloon with semi-compliant smaller diameter waist and non-compliant larger diameter bulbous end regions. The balloon centers across the valve with the waist adjacent to the annulus. One bulbous region serves to hyperextend the valve leaflets and the other assists in stabilizing the balloon position to reduce migration. The semi-compliant waist increases in diameter as fluid enters the balloon until it comes into contact with the valve annulus. The pressure within the balloon per unit of volume delivery has a greater slope after contact with the annulus than before resulting in a change in slope for the pressure versus volume curve. The diameter of the balloon and annulus are determined at this inflection point when the balloon contacts the annulus.04-15-2010
20120150106TORQUE-LIMITING CATHETER HANDLE - A catheter includes a handle that advantageously limits the amount of torque that can be imparted to the body of the catheter. This advantageously reduces the likelihood of catheter failure, damage to tissue, or damage to medical devices introduced into the vasculature via the catheter. The catheter handle includes a grip portion that the practitioner manipulates in order to impart a torque and a torque transmitting portion operably coupled thereto that transmits the torque to the catheter body. A torque limiting mechanism decouples the torque transmitting portion from the grip portion, the body, and/or any pull wires when the torque imparted to the grip portion exceeds a torque threshold, thereby preventing excessive torques from being transmitted to the catheter body and/or pull wires. A practitioner may be able to adjust the torque threshold and may be able to disable the torque limiting mechanism.06-14-2012
20120123327STEERABLE ENDOLUMINAL DEVICES AND METHODS - A steerable endoluminal device adapted for delivery into a patient's vasculature. The device includes a tubular member having a distal deflection portion that extends to the distal end and a main body portion that extends from the deflectable portion to the proximal end, the tubular member further including a stiff portion extending along the distal deflection portion, and being formed of polymeric material, which is disposed circumferentially adjacent to the stiff portion. The stiff portion is made of a material that has an elastic modulus greater than the elastic modulus of the polymeric material. A pull wire extends between the proximal end and the distal end of the tubular member and is attached to the distal deflection portion to control deflection of the distal deflection portion of the tubular member.05-17-2012
20090131865STEERABLE CATHETER - A steering mechanism (05-21-2009
20120316494DEVICE FOR MONITORING AND/OR MANIPULATING OBJECTS ARRANGED IN A CAVITY THAT CAN BE ACCESSED THROUGH A NARROW OPENING - In a device (12-13-2012
20120215164Torqueable and Deflectable Medical Device Shaft - A medical device shaft for connection with a handle and for insertion within a body includes an elongated, deflectable shaft having a proximal shaft portion, an intermediate shaft portion, and a distal shaft portion. The elongated, deflectable shaft includes a transition in stiffness from the proximal shaft portion to the distal shaft portion. In a preferred implementation, the shaft includes a plurality of slits that extend perpendicular to a longitudinal axis of the shaft. Varying at least one of the number of slits, the location of slits, the frequency of slits, the orientation of the slits, the size of the slits, and the depth of the slits varies the transition of stiffness.08-23-2012
20100204647Electromagnetically Actuated Intracorporeal Drug Delivery - In one embodiment, an elongate body with a proximal end and a distal end is disclosed and which is controllable by an operator at the proximal end; in one embodiment, the elongate body is a catheter and the catheter tip is located at the distal end. The body contains numerous magnets along its length, at least one of which is an electromagnet, controllable by means of a current delivered by the operator of the body at the proximal end of the body. The magnets are placed such that a force is created at the distal end of the elongate body. The magnetic forces which control the distal end of the body originate from the controllable magnets placed on the body.08-12-2010
20100069835KNITTED CATHETER - A medical device, comprising: an elongate tubular knitted catheter comprising at least one biocompatible, electrically non-conductive filament arranged in longitudinally adjacent substantially parallel rows each stitched to an adjacent row.03-18-2010
20120253277STEERING MECHANISM - A hand-holdable steering mechanism is used as part of a medical device such as a catheter or an endoscope to allow movement of a steerable distal portion of the catheter or endoscope. The mechanism can include a housing, a first actuator, and a second actuator. The first actuator is configured to move the steerable portion along a first plane when the first actuator is moved between first and second positions. The second actuator is configured to move the steerable portion along a second plane different than the first plane when the second actuator is moved between first and second positions.10-04-2012
20120226228BI-DIRECTIONAL HANDLE FOR A CATHETER - A steerable catheter or sheath includes a catheter or sheath body defining a longitudinal axis; first and second actuation wires extending from a proximal end of the body; and a control handle coupled to the body for steering a distal end of the body. The control handle includes a grip portion including a pivot; a wire diverting assembly located on the grip portion at a location separate from the pivot; and an actuator assembly coupled to the pivot and configured for pivotal movement in a single plane. The wire diverting assembly can include first and second actuation wire connection locations that are disposed on opposite sides of the longitudinal axis. The first and second actuation wires can extend toward the wire diverting assembly in a first orientation, and the wire diverting assembly can change the first orientation to a second orientation that is at an angle to the first orientation.09-06-2012
20120238952ENDOLUMINAL SURGICAL TOOL WITH SMALL BEND RADIUS STEERING SECTION - An endoluminal surgical instrument has first and second steering controls on a handle. A flexible shaft attached to the handle has a distal steerable end including a first link and a second link separated by a plurality of intermediate links. First and second steering elements, such as pairs of steering wires, are linked to first and second steering controls and to the first and, second links. One or more of the links is pivotable through an angle of at least 30 degrees relative to an adjoining link. The set back position of the second steering elements from the first steering elements, and the pivoting capability of the links allows the steerable end to be steered into a small bend radius. This makes the instrument highly maneuverable for use in endoluminal surgery, such as incision-less surgery of the stomach.09-20-2012
20120265133CONTROLLING MOVEMENT OF DISTAL PORTION OF MEDICAL DEVICE - A medical device allows movement control of a distal end portion of the medical device and is adapted for one-handed operation. The medical device is capable of omni-directional control of the distal end portion of the device. The device has an elongated member including a deflectable portion at a distal end portion of the elongated member. The device also has a control portion disposed on the elongated member. This control portion can be a handle for one-handed use by an operator of the medical device. The control portion comprises an elastic element and a flexible element. Angular movement of a first portion of the control portion with respect to a second portion of the control portion results in amplification of that angular movement in the deflectable portion of the device.10-18-2012
20120265132BENDABLE CATHETER - The bendable catheter includes a flexible tubular main tube; a bendable part having a longitudinal axis and an internal space formed along the longitudinal axis, and being capable of being bent; a first coil provided in the internal space along the longitudinal axis; a second coil having a central axis extending parallel to a central axis of the first coil and provided adjacent to the first coil in a space formed between the bendable part and the first coil; and a bending manipulation wire arranged within the second coil, being capable of bending the bendable part, and having one end fixed to the bendable part.10-18-2012
20120323175CATHETER ASSEMBLY - A catheter assembly comprises a first catheter including a wall with an inner surface at least partially defining a lumen. A second catheter is connected to the wall of the first catheter and is disposed outward of the inner surface of the wall. The second catheter is at least partially covered by a sheath portion of the first catheter. A first portion of the wall of the first catheter is made of a relatively low durometer elastomeric material and is relatively extensible. A second portion of the wall is formed of a relatively high durometer elastomeric material and is relatively inextensible.12-20-2012
20120323174Systems and Methods for Steering Catheters - Systems and methods for steering catheters to facilitate advancing the catheters through the body, wherein the catheters employ multiple steering stages, each of which can move in multiple planes. The steering stages are independently controlled to enable them to form complex shapes. In one embodiment, the steerable catheter includes an elongated catheter body with the steering stages incorporated into the distal end of the catheter. The steering stages may incorporate multiple memory wires and corresponding heating elements that control the temperatures of the memory wires and consequently control the shapes of the wires and the steering stages in which they are embedded. The catheter may be any type of catheter (e.g., a lumen catheter) and may include features that enable the catheter to perform functions such as delivering therapies (e.g., ablation) to target tissues within the body.12-20-2012
20110238010Robotic catheter system input device - An input device (09-29-2011
20090171274Non contact mapping catheter - A multi electrode catheter for non contact mapping of the heart having independent articulation and deployment features.07-02-2009
20120330230Medical catheter with deflection pull ring and distal tip attachment apparatus - A medical catheter includes a deflectable and compressible catheter shaft; a pull ring near a distal end of the catheter shaft; a distal tip that includes a tip element and a mounting shaft; and an attachment apparatus for securely attaching the distal tip to the catheter shaft, the attachment apparatus including a compression ring which compresses the catheter shaft and the mounting shaft together. The compression ring can be located around the catheter shaft to compress the catheter shaft against an outer surface of the mounting shaft, or within the catheter shaft to compress the catheter shaft outwardly against an inner surface of the mounting shaft. The catheter can be a non-irrigated ablation catheter, with the tip element being a tip electrode, and it can be an irrigated ablation catheter, with the distal tip including a fluid manifold.12-27-2012
20100168666Catheter Having Independently-Deflectable Segments and Method of its Manufacture - A catheter shaft includes a wall defining a lumen, a distal segment, and a proximal segment. At least one distal segment deflection wire extends through the proximal segment and terminates in the wall in the distal segment, while at least one proximal segment deflection wire extends through the proximal segment and terminates in the wall in the proximal segment. The proximal and distal segment deflection wires respectively permit the proximal and distal segments of the catheter shaft to deflect independently of each other. The catheter shaft may also include one or more wire reinforcing layers embedded in the wall.07-01-2010
20130018307Multi-Lumen Steerable Catheter - A steerable multi-lumen catheter is provided which can be used in cardiology procedures where the catheter allows clinicians to access the small pulmonary arteries for monitoring and performing interventional procedures. The catheter allows precise changes in direction and simplifies challenging navigation procedures such as crossing a thick and calcified aortic valve with a wire. A bendable tip aids navigation during interventional radiology and neurology procedures to enter tortuous vessels or aneurysms.01-17-2013
20130018306SYSTEM FOR INDICATING CATHETER DEFLECTIONAANM Ludwin; Doron MosheAACI HaifaAACO ILAAGP Ludwin; Doron Moshe Haifa IL - Apparatus, consisting of a probe, having a proximal end and a distal end, which is deflectable in first and second directions. The apparatus includes a probe manipulator, which is coupled to the proximal end of the probe and has first and second tactile control elements. The elements are operable by a user of the probe to deflect the distal end in the first and second directions, respectively, and are tactilely distinguishable one from the other.01-17-2013
20130172813MEDICAL DEVICE CONTROL HANDLE WITH MULTIPLE PULLER WIRES - A medical device control handle or catheter includes deflection assembly and at least one of the following: a disk actuator, a lever actuator and a ring actuator for actuating additional puller wires in manipulation of multiple features of the medical device or catheter independently of each other. The disk actuator has a common rotational axis with but is rotationally independent of the deflection assembly. The lever actuator has a separate rotational axis. The ring is mounted outside of the control handle and rotatable relative to the control handle to actuate another puller wire for manipulating another feature of the catheter.07-04-2013
20130172814CATHETER FOR MANUAL AND REMOTE MANIPULATION - An elongate medical device may overcome be configured both for manual manipulation by a physician and for automatic manipulation by a remote catheter guidance system. Such an elongate medical device comprises a shaft having a proximal portion and a distal portion, a pull wire disposed in the shaft and affixed to the distal portion of the shaft, and a handle coupled with the proximal portion of the catheter shaft. The handle comprises a first mechanism configured for manual actuation of the pull wire so as to deflect the distal portion of the shaft, a second mechanism configured for remote actuation of the pull wire so as to deflect the distal portion of the shaft, and a mechanical interface configured to provide a remote catheter guidance system with a functional connection to the second mechanism.07-04-2013
20080255505Robotic catheter systems and methods - A robotic instrument system having an elongate sheath instrument and an elongate catheter instrument positioned within a working lumen of the sheath instrument is controlled by selectively operating an instrument driver coupled to the catheter instrument to place a control element extending through the catheter instrument in tension, and thereby articulate at least a distal end portion the catheter instrument, while automatically compensating for a torsional force exerted on the sheath instrument in a first direction due to articulation of the distal end portion of the catheter, by urging the sheath instrument to twist in a second direction opposite of the first direction.10-16-2008
20080228135APPARATUS FOR TREATING A DAMAGED SPINAL DISC - The advantages of this invention are provided by a surgical tool for repairing a damaged spinal disc of a patient comprising: a catheter having a proximal end and a distal end; a guide wire contained within the catheter so that when the guide wire is pulled, the catheter will flex into a non linear shape allowing it to be steered once inserted in the patient; a heating element carried by the catheter, probe or heating member, and connected to a power source so that the heating element can be activated and provide heat to treat a disk; a grasping probe that extends from the catheter so that the grasping probe can be extended out of the catheter; and, a grasping member that can from the distal end of the catheter.09-18-2008
20130178794Robotic catheter manipulator assembly - A robotic catheter manipulator assembly may include a support member including a catheter manipulation base and a sheath manipulation base movable relative to each other and to the support member. Each respective manipulation base may be releasably connectable to a catheter cartridge and a sheath cartridge. A drive mechanism may be provided for moving the catheter and sheath manipulation bases relative to each other and to the support member. The manipulation base or the cartridge may include a first element engageable with a complementary second element slidably engaged with the other one of the manipulation base or the cartridge for controlling movement of a component connected to the cartridge. The cartridge, for example, may be a transseptal cartridge, a catheter cartridge or a sheath cartridge, and the component may respectively be a surgically insertable device such as a transseptal needle, a catheter or a sheath.07-11-2013
20110270169Steerable Stylet with Guidewire Tip - According to an embodiment of the present invention, a steerable elongated medical device includes an outer tube extending between an outer tube proximal segment and an outer tube distal segment, and having an outer tube wall forming an outer tube lumen and an elongated outer tube slot through the outer tube wall to the outer tube lumen. The elongated outer tube slot has a first portion and a second portion and is formed between an outer tube slot proximal end and an outer tube slot distal end and extends axially along the outer tube distal segment through an outer tube slot length to define a cutaway portion of the outer tube. A reinforcing sleeve is positioned within the outer tube lumen and extends between a reinforcing sleeve proximal end and a reinforcing sleeve distal end. The reinforcing sleeve forms a reinforcing sleeve slot portion aligned with and extending along the first portion of the outer tube slot and includes a reinforcing sleeve overlap portion extending over the second portion of the outer tube slot. A handle is coupled to the outer tube proximal end, and a pull wire is positioned within the outer tube lumen and extends between a pull wire proximal end coupled to the handle and a pull wire distal end comprising a guidewire tip. The pull wire extends through the reinforcing sleeve lumen, the outer tube lumen, and a distal pull wire stop, and the guidewire tip extending distally from the distal pull wire stop and the pull wire proximal end is adapted to be manipulated to separate the pull wire proximal end from the outer tube proximal end to induce a bend in the cutaway portion.11-03-2011
20130096498SURGICAL INSTRUMENT WITH INCREASED RELIABILITY - A surgical instrument having a long shaft comprises, in the shaft, a sealing element produced by primary shaping at the installation location. The sealing element is produced such that any actuating mechanisms are installed and held in place in the shaft and then a curable plastic material is injected into the shaft such that the material encloses the actuating element along a length that is greater than the inside diameter and smaller than its length.04-18-2013
20130102961Endoscope Combined Deflection Control and Lock - An endoscope including a shaft having a deflectable distal end; a handle at a proximal end of the shaft; and a deflection control connected to the distal end. The deflection control includes a combined lock and deflection control member at the handle. The control member is adapted to be moved to a selected location by a single finger of a user and thereby deflect the distal end. The control member is adapted to be locked at the user selected location by movement of the control member to a locked position by the single finger of the user.04-25-2013
20130131593MEDICAL DEVICE CONTROL HANDLE - A medical device control handle has with a distal component which is adjustable by an actuator assembly by means of a puller member or wire. The actuator assembly includes a user interface rotational dial, a detent tab washer and a spool, where the dial is rotationally coupled to the detent tab washer which transmits rotational movement of the dial to the spool. The spool has a shaft body and a drum end onto which an proximal end portion of the puller member can be wound to manipulate or adjust the distal component. Rotational movement of the detent washer is limited to prevent overrotation and breakage of the puller member. At least one washer is mounted on the shaft body of the spool to help apply compression load on the actuator assembly in friction-inducing contact with one or more components of the actuator assembly.05-23-2013
20130131592MEDICAL DEVICE CONTROL HANDLE WITH INDEPENDENT SELF HOLDING PULLER WIRE ACTUATORS - A medical device control handle has a first actuation member for actuating at least one puller wire in one manipulation of a medical device, including uni-directional deflection, if not a pair of puller wires for bi-directional deflection of a catheter, and a second actuation member for actuating an additional puller wire in another manipulation of the medical device, wherein the first and second actuation members have a common rotational axis without being rotationally coupled. In one embodiment, a first actuation assembly has a first actuator, an arm rotatable about an axis, and a first shaft. The first deflection actuator and the arm are rotationally coupled by the rotation shaft, and the arm has at least one pulley that is engaged with a puller wire. The second wire actuation assembly has a second actuator and a second shaft having a spool portion. Each actuation assembly has a friction-inducing element that provides friction torque between components of each assembly such that the actuators are self-holding.05-23-2013
20130131591DELIVERY SYSTEM ASSEMBLIES AND ASSOCIATED METHODS FOR IMPLANTABLE MEDICAL DEVICES - A delivery system assembly includes an elongate outer tube, an elongate inner member extending within a lumen of the outer tube, and an articulation sheath surrounding the outer tube between a handle of the assembly and a distal-most portion of the outer tube. The outer tube is longitudinally moveable within the sheath; and an inner diameter of the sheath is preferably smaller than that of the handle and the distal-most portion of the outer tube. Navigation of the assembly through a venous system, for deployment of an implantable medical device, is facilitated by deflection of the sheath, to orient a distal-most portion of the outer tube, within which an entirety of the medical device is contained/loaded, and by subsequent advancement of the distal-most portion, with respect to the sheath, to move the distal end of the inner member, along with the contained/loaded device into proximity with a target implant site.05-23-2013
20130144208Dual-deflecting electrophysiology catheter - An electrophysiology catheter includes a tubular body having a proximal region, a neck region, and a distal region predisposed into a loop and including electrodes. A first deflection wire extends through at least a portion of the proximal region of the catheter body and includes a first flattened section, while a second deflection wire extends through the neck region and at least a portion of the distal region and includes a second flattened section within the neck region. A first activation wire is joined to the flattened section of the first deflection wire, while a second activation wire is joined to the flattened section of the second deflection wire. Thus, forces acting on the first and second activation wires, such as forces imposed by a handle-based actuator, are respectively transmitted to the first and second deflection wires, thereby deflecting the proximal and neck regions, respectively.06-06-2013
20130144209CATHETER ASSEMBLY WITH DEFLECTION SIZE ADJUSTABILITY - A catheter includes a handle, a catheter sheath and a stylet received within a lumen of the catheter sheath. A carrier arrangement projects from the distal end of the handle, the carrier arrangement mounting the catheter sheath and at least part of the deflection stylet. The catheter handle includes an adjustment unit having a gear mechanism that controls at least one of the deflection of the distal part of the stylet and the extent of deflection of the distal part of the stylet.06-06-2013
20110218492STEERABLE CATHETER WITH IN-PLANE DEFLECTION - An improved steerable catheter with in-plane deflection comprises a catheter body having proximal and distal ends and a lumen extending therethrough and a tip section at the distal end of the catheter body. The tip section comprises a flexible plastic tubing having a pair of diametrically-opposed lumens extending therethrough. The catheter also provides two puller wires manipulated through a control handle at the proximal end of the catheter body. Each puller wire extends through one of the pair of lumens in the tip section and through the lumen of the catheter body and is anchored to the control handle at its proximal end and anchored to the tip section at its distal end. The deflection mechanism is configured to generally define a plane along which deflection most readily occurs and an edge along which deflection is most readily avoided. The deflection mechanism extends longitudinally along a centerline of the tip section between the first and second puller wire and is configured generally with a cross section having a thinner dimension and a thicker dimension to bias the tip section to deflect in a plane parallel with the thinner dimension of the deflection mechanism and to resist deflection in a plane perpendicular to thicker dimension.09-08-2011
20110213300IN-VIVO VISUALIZATION SYSTEM - Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and reusable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. The catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.09-01-2011
20090171273DEFLECTABLE CATHETER CONSTRUCTED TO INHIBIT COMPONENT MIGRATION - A method of manufacturing a deflectable electrophysiological catheter includes constructing a shaft having a distal end and at least one lumen. The method further includes inserting a component into the lumen, and processing at least a portion of the distal end to reduce the cross-sectional profile of the lumen to capture/confine the component. A catheter manufactured using this method includes a shaft having at least one lumen. The lumen comprises a longitudinally-extending trough defined by a longitudinally-extending recess, within which a component is disposed, and a longitudinally extending open edge. The lumen further comprises a longitudinally-extending channel defined by a longitudinally-extending cavity and by the open edge of the trough. A planarity wire is disposed within the cavity and is configured to close the open edge of the trough to within a pre-defined tolerance that is less than the size of the component to retain the component in the recess.07-02-2009
20120283633INTRAVASCULAR ACCESS CATHETER - Disclosed is an access catheter, having a distal segment which is moveable from a reduced outside diameter for positioning at a target site, and an enlarged outside diameter to create an enlarged internal working lumen. In one application, the catheter is configured for use as an intracranial aspiration catheter. Methods are also disclosed.11-08-2012
20130158478Catheter and Method for Producing the Same - A catheter comprising a steering cable anchor, which is preferably disposed at the distal end of the catheter, and a steering cable. In order to obtain a reliable connection between the steering cable anchor and the steering cable, which is also suitable for use in MRI, a substantially dumbbell-shaped element is disposed between the steering cable anchor and the steering cable and connects the steering cable anchor to the steering cable.06-20-2013
20130158479DEVICE FOR REDUCING AXIAL SHORTENING OF CATHETER OR SHEATH DUE TO REPEATED DEFLECTION - A deflectable medical device incorporates a strut that is configured to reduce or eliminate axial shortening of the deflectable portion of the medical device, for example, the deflectable distal end portion of a catheter or access sheath. The strut may is coaxially disposed in the medical device in the section that is contemplated to undergo the repeated deflection. The strut provides improved column strength and axial restoration. The strut may be stent-like device, an elongate device having opposing ends coupled by a connecting lattice involving a plurality of helical connecting elements or a tube having a plurality of circumferentially-extending slots arranged in longitudinally-extending rows.06-20-2013
20130184642STEERABLE SHEATH HANDLE PULLEY MECHANISM - Various embodiments concern an introducer sheath assembly comprising a tubular sheath member having a deflectable distal end portion and a sheath member lumen, and a handle assembly including a steering mechanism for deflecting the distal end portion of the sheath member. The distal end portion of the sheath member can deflect in different directions along a plane by selective tension in one of two pull wires. The selective tension can be caused by selective proximal or distal axial translation of a shuttle assembly relative to the tubular sheath member. The selective proximal or distal axial translation can be controlled by selective clockwise or counterclockwise rotation of a control knob.07-18-2013
20130123691MEDICAL DEVICE CONTROL HANDLE WITH MULTIPLYING LINEAR MOTION - A catheter adapted for use in a tubular region of the heart, has a catheter body, a deflectable intermediate section and a distal a mapping assembly that has a generally circular portion adapted to sit on or in a tubular region of the heart. A control handle of the catheter allows for deflection of the catheter via a first and second puller wire responsive to a deflection assembly and manipulation of distal assembly via a third puller wire responsive to a linear motion actuator assembly. The linear motion actuator assembly includes a pair of user interface knobs, a body to which a proximal end of the third puller wire anchored, and a pair of arms that movably suspends the body and transmits longitudinal travel of the knobs to the body in a manner that multiples the travel of the body relative to the travel of the knobs.05-16-2013
20110313352ROBOTICALLY GUIDED CATHETER - Apparatus is provided for use with a steerable catheter that includes a thumb control adapted to control a deflection of a distal tip of the catheter. The apparatus includes a robot, including an end-effector, adapted to be coupled to the thumb control, and a controller, adapted to drive the end-effector to deflect the distal tip by manipulating the thumb control. The controller has an algorithm that uses an iterative process to direct the distal tip of the catheter to a desired position, responsive to six dimensions of location and orientation information position information12-22-2011
20130102960ENDOSCOPE - An endoscope includes an insertion portion, a bending operation input portion, a first bending drive mechanism and a second bending drive mechanism. The insertion portion includes a first bending portion and a second bending portion disposed at the proximal end of the first bending portion. The bending operation input portion can bend the first bending portion. The first bending drive mechanism bends the first bending portion in accordance with the operation of the bending operation input portion. The second bending drive mechanism can automatically bend the second bending portion in the same direction as the bending direction of the first bending portion in conformity to the first bending portion after the start of the bending of the first bending portion.04-25-2013
20120071822STEERABLE CATHETERS - Medical devices having an elongated steerable member are described herein. In one embodiment, a device includes an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections, a first coil having a distal portion, and a proximal portion, the proximal portion of the first coil being slidable relative to the proximal section of the elongated body, and being closer to a wall of the elongated body than to an axis of the elongated body, wherein a lengthwise portion of the distal portion of the first coil is anchored to the distal section of the elongated body, and a first steering wire located within a lumen of the first coil.03-22-2012

Patent applications in class Having tensioning means to alter conduit shape