Patent application number | Description | Published |
20090204194 | MEDICAL SYSTEM INCLUDING A NOVEL BIPOLAR PACING PAIR - A medical system includes a first low voltage electrode adapted for intimate contact with tissue at an implant site, in order to provide pacing stimulation in conjunction with a second low voltage electrode. A porous layer is formed over the second electrode; the porous layer allows conduction therethrough while preventing contact between the second electrode and tissue in proximity to the implant site. | 08-13-2009 |
20090275996 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
20090276025 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
20090326527 | Cardiac Mapping Instrument with Shapeable Electrode - An instrument including an elongated shaft and a non-conductive handle is disclosed. The shaft defines a proximal section and a distal section. The distal section forms an electrically conductive tip. Further, the shaft is adapted to be transitionable from a straight state to a first bent state. The shaft is capable of independently maintaining the distinct shapes associated with the straight state and the first bent state. The handle is rigidly coupled to the proximal section of the shaft. The instrument is useful for epicardial pacing and/or mapping of the heart for temporary pacing on a beating heart, for optimizing the placement of ventricular leads for the treatment of patients with congestive heart failure and ventricular dysynchrony and/or for use in surgical ablation procedures. | 12-31-2009 |
20100030230 | MEDICAL DEVICE SYSTEM AND APPARATUS FOR GUIDING THE PLACEMENT OF A SUBCUTANEOUS DEVICE - A medical device system for guiding placement of a subcutaneous medical device that includes a strap extending along a length from a proximal end to a distal end, a first flange and a second flange extending along a portion of the length of the strap, a base portion extending along a portion of the length of the strap between the first flange and the second flange, an orientation member extending along the strap to limit a predetermined radius of curvature of the strap, and an indentation extending from the proximal end to the distal end of the strap, the indentation formed by the first flange, the second flange, and the base portion, wherein the first flange and the second flange include curved bottom portions that make contact with and compress a tissue layer to position the tissue layer within the indentation during the placement of the subcutaneous device. | 02-04-2010 |
20100063475 | DEVICES AND METHODS FOR INTERSTITIAL INJECTION OF BIOLOGIC AGENTS INTO TISSUE - Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for transversely driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force transverse to the shaft. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue. | 03-11-2010 |
20100069844 | Devices and Methods for Interstitial Injection of Biologic Agents into Tissue - Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue. | 03-18-2010 |
20100114136 | CUTTING DEVICE AND METHOD OF VESSEL HARVESTING - Embodiments of the invention provide a cutting device and method of vessel harvesting. The cutting device can include at least one tubular member, a cutting element, and a centering member. The cutting device can include at least one tubular member with a flexible section and a cutting element. The method of vessel harvesting can include spacing a cutting element of the cutting device from the vessel as the cutting element is advanced over the vessel. | 05-06-2010 |
20100121362 | VESSEL SUPPORT DEVICE AND METHOD OF VESSEL HARVESTING - Embodiments of the invention provide a vessel support system and a method of vessel harvesting. The system can include a cutting device, a catheter adapted to be inserted into a section of the vessel in order to support the vessel as the cutting device is advanced over the vessel, and a cannula adapted to be coupled to the vessel and adapted to receive the catheter as the catheter is inserted into the section of the vessel. The method can include orienting a cutting device coaxially with the cannula and the catheter and advancing the cutting device over the cannula, the catheter, and the section of the vessel in order to core out the section of the vessel and a portion of the surrounding tissue. | 05-13-2010 |
20120109148 | SYSTEM AND METHOD FOR RETRIEVAL OF AN IMPLANTABLE MEDICAL DEVICE - System and method for extracting an implantable medical device. An implantable medical device has a fixation member operatively coupled to the housing having an engaged state configured to engage tissue of a patient, the medical device being magnetically attractable. A catheter has a lumen and a distal portion configured for insertion in proximity of the implantable medical device. A magnetic element is configured to pass through the lumen of the catheter and to magnetically engage the implantable medical device when inserted toward the distal portion of the catheter. | 05-03-2012 |
20120109149 | SYSTEM AND METHOD FOR IMPLANTATION OF AN IMPLANTABLE MEDICAL DEVICE - System and method for implanting an implantable medical device. A catheter has a lumen and a distal portion configured for insertion in proximity of tissue of a patient. An implantable medical device has a fixation member operatively coupled to the housing having an unengaged state when in the lumen of the catheter and an engaged state configured to engage tissue of a patient when outside of the lumen of the catheter, the medical device being magnetically attractable. A magnetic element is configured to magnetically engage the implantable medical device and to pass through the lumen of the catheter. | 05-03-2012 |
20120172690 | IMPLANTABLE MEDICAL DEVICE FIXATION - An assembly includes an implantable medical device (IMD) including a conductive housing, and a fixation element assembly attached to the IMD. The fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device. The active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue. | 07-05-2012 |
20120172892 | IMPLANTABLE MEDICAL DEVICE FIXATION - Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue. | 07-05-2012 |
20130035748 | IMPLANT SYSTEM INCLUDING GUIDING ACCESSORY AND METHODS OF USE - A guiding accessory, for use in conjunction with a guidewire and a catheter of an implant system, facilitates passage of an elongate and flexible conductor of a relatively compact therapy delivery device to an implant site, for example, within the cardiac venous system, when a therapy generator of the device is held within a distal portion of the catheter, and the catheter, device and guiding accessory are advanced along the guidewire. The guiding accessory includes a helically extending wall that forms a lumen within which the device conductor and guidewire extend. After advancing the catheter, guiding accessory and device to the implant site, the helically extending wall is unwound from around the device conductor, for removal, preferably, by pulling proximally on a tension line, which is attached to a proximal end of the wall. | 02-07-2013 |
20130053921 | HOLDING MEMBERS FOR IMPLANTABLE CARDIAC STIMULATION DEVICES - A holding member for an implantable cardiac device facilitates tether attachment and removal, at time of implant, and snaring, or otherwise capturing, for subsequent explant. Preferably located in proximity to a proximal end wall of a shell of the device, the holding member includes a strut portion, being spaced proximally apart from the proximal end wall, a waist portion, defining a recess, and an engagement section, extending between the strut portion and the waist portion and overhanging the recess. The waist portion may either extend between the strut portion and the proximal end wall, or be formed in the shell, distal to the proximal end wall. Alternately, the holding member includes a loop element and an engagement element coupled thereto, between first and second segments thereof. The segments are initially formed to give the loop element an opening, and have a flexibility to be compressed together. | 02-28-2013 |
20130184727 | VESSEL SUPPORT DEVICE AND METHOD OF VESSEL HARVESTING - Embodiments of the invention provide a vessel support system and a method of vessel harvesting. The system can include a cutting device, a catheter adapted to be inserted into a section of the vessel in order to support the vessel as the cutting device is advanced over the vessel, and a cannula adapted to be coupled to the vessel and adapted to receive the catheter as the catheter is inserted into the section of the vessel. The method can include orienting a cutting device coaxially with the cannula and the catheter and advancing the cutting device over the cannula, the catheter, and the section of the vessel in order to core out the section of the vessel and a portion of the surrounding tissue. | 07-18-2013 |
20130197597 | TECHNIQUES FOR MITIGATING MOTION ARTIFACTS FROM IMPLANTABLE PHYSIOLOGICAL SENSORS - Disclosed techniques include monitoring a physiological characteristic of a patient with a sensor that is mounted to an inner wall of a thoracic cavity of the patient, and sending a signal based on the monitored physiological characteristic from the sensor to a remote device. | 08-01-2013 |
20140121719 | LEADLESS PACEMAKER SYSTEM - A device includes a signal generator module, a processing module, and a housing. The signal generator module is configured to deliver pacing pulses to an atrium. The processing module is configured to detect a ventricular activation event and determine a length of an interval between the ventricular activation event and a previous atrial event that preceded the ventricular activation event. The processing module is further configured to schedule a time at which to deliver a pacing pulse to the atrium based on the length of the interval and control the signal generator module to deliver the pacing pulse at the scheduled time. The housing is configured for implantation within the atrium. The housing encloses the stimulation generator and the processing module. | 05-01-2014 |
20140121720 | LEADLESS PACEMAKER SYSTEM - A device includes a signal generator module, a processing module, and a housing. The signal generator module is configured to deliver pacing pulses to an atrium. The processing module is configured to detect a ventricular activation event and determine a length of an interval between the ventricular activation event and a previous atrial event that preceded the ventricular activation event. The processing module is further configured to schedule a time at which to deliver a pacing pulse to the atrium based on the length of the interval and control the signal generator module to deliver the pacing pulse at the scheduled time. The housing is configured for implantation within the atrium. The housing encloses the stimulation generator and the processing module. | 05-01-2014 |
20140180306 | IMPLANTABLE MEDICAL DEVICE FIXATION - Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue. | 06-26-2014 |
20150045868 | IMPLANTABLE MEDICAL DEVICE FIXATION - Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue. | 02-12-2015 |