Patent application number | Description | Published |
20130060314 | LEAD INCLUDING CONDUCTORS CONFIGURED FOR REDUCED MRI-INDUCED CURRENTS - An implantable medical device lead includes an inner conductor coil comprising one or more generally cylindrically wound filars. The inner conductor coil is configured to have a first inductance value greater than or equal to 0.2 μH/inch when the inner conductor coil is subjected to a range of radio frequencies. The implantable medical device lead also includes a multi-filar outer coil comprising two or more generally cylindrically wound filars. The multi-filar outer coil is configured to have a second inductance value greater than or equal to 0.1 μH/inch when the multi-filar outer coil is subjected to the range of radio frequencies. | 03-07-2013 |
20130131767 | POLYISOBUTYLENE URETHANE, UREA AND URETHANE/UREA COPOLYMERS AND MEDICAL LEADS CONTAINING THE SAME - The present invention provides medical devices that contain polyisobutylene urethane copolymers, polyisobutylene urea copolymers and polyisobutylene urethane/urea copolymers. More particularly, the present invention provides medical leads that contain such copolymer. | 05-23-2013 |
20130158641 | MRI CONDITIONALLY SAFE LEAD WITH LOW-PROFILE MULTI-LAYER CONDUCTOR FOR LONGITUDINAL EXPANSION - An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor. | 06-20-2013 |
20130190849 | MEDICAL DEVICE LEAD INCLUDING A UNIFILAR COIL WITH IMPROVED TORQUE TRANSMISSION CAPACITY AND REDUCED MRI HEATING - A medical device lead includes an electrode, a helically coiled conductor electrically coupled to the electrode, and a polymer sheath formed over the helically coiled conductor. The helically coiled conductor includes a plurality of turns helically wound around a longitudinal axis of the conductor, and consists of one filar. | 07-25-2013 |
20130296678 | COMBINATION STRUCTURAL POROUS SURFACES FOR FUNCTIONAL ELECTRODE STIMULATION AND SENSING - An implantable medical lead including a proximal end portion and a distal end portion and an electrical conductor electrically connected to the proximal end portion of the lead body. Also, the lead has at least one electrode connected to the distal end portion of the lead body and connected to the electrical conductor. The electrode includes a conductive base structure, a first set of pores formed on an outer surface of the conductive base structure, the first set of pores having an average first pore dimension of between about ¼ | 11-07-2013 |
20130304170 | MULTIPOLAR CONDUCTOR FOR AN IMPLANTABLE MEDICAL DEVICE - A medical device lead includes a flexible body having a proximal region with a proximal end, and a distal region with a distal end. A connector is coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator. A composite wire having a proximal end is electrically coupled to the connector. The composite wire includes an inner conductor element and a plurality of outer conductor elements adjacent to and radially spaced from the inner conductor element. A distal end of each of the inner conductor element and the plurality of outer conductor elements is connected to one of a plurality of electrodes in the distal region of the flexible body. | 11-14-2013 |
20130310910 | LEAD INCLUDING CONDUCTORS CONFIGURED FOR REDUCED MRI-INDUCED CURRENTS - An implantable medical device lead includes an inner conductor coil comprising one or more generally cylindrically wound filars. The inner conductor coil is configured to have a first inductance value greater than or equal to 0.2 μH/inch when the inner conductor coil is subjected to a range of radio frequencies. The implantable medical device lead also includes a multi-filar outer coil comprising two or more generally cylindrically wound filars. The multi-filar outer coil is configured to have a second inductance value greater than or equal to 0.1 μH/inch when the multi-filar outer coil is subjected to the range of radio frequencies. | 11-21-2013 |
20130325093 | IMPLANTABLE DEVICE LEAD INCLUDING A DISTAL ELECTRODE ASSEMBLY WITH A COILED COMPONENT - A medical device lead includes an insulative body having a proximal region with a proximal end, and a distal region with a distal end. The medical device lead also includes a connector coupled to the proximal end of the insulative body of the lead to electrically and mechanically connect the lead to an implantable pulse generator. The medical device lead further includes a conductor extending through the insulative body with a proximal end electrically connected to the connector. A distal electrode assembly at a distal end of the insulative body includes a proximal portion electrically coupled to a distal end of the conductor, a distal portion, and an intermediate portion. The intermediate portion comprises a coiled element electrically connecting the proximal portion and distal portion. | 12-05-2013 |
20140058405 | COMPOUND-SHAPED STYLET FOR TORQUE TRANSMISSION - A medical stylet for guiding a lead includes a first elongate member for attachment of the lead to the target tissue, a second elongate member to reshape the lead. The first elongate member of the medical stylet includes a proximal end portion, and a distal end portion wherein the distal end portion of the first elongate member includes a tip feature configured to engage the lead on application of torque externally. The second elongate member defines a lumen along its length. The lumen of the second elongate member can be configured to enclose at least a portion of the first elongate member. The second elongate member can have a pre defined shape. The pre defined shape of the second elongate member allows the lead to be reshaped when inserted into the lead, this reshaped lead now can be guided to an anatomical pass way. | 02-27-2014 |
20140114383 | INDUCTIVE ELEMENT FOR PROVIDING MRI COMPATIBILITY IN AN IMPLANTABLE MEDICAL DEVICE LEAD - A system includes a medical device lead including a connector at a proximal end of the lead, a conductor electrically connected to the connector at a proximal end of the conductor, and at least one electrode coupled to a distal end of the conductor. The system further includes a device securable to the proximal end of the lead including an inductive element. The device includes a port configured to receive the connector and position the inductive element around at least a portion of the connector. | 04-24-2014 |
20140128948 | FIXATION AND STRAIN RELIEF ELEMENT FOR TEMPORARY THERAPY DELIVERY DEVICE - A temporary neurostimulation lead may be secured relative to patient using a fixation device. The fixation device may include an attachment portion that is configured to be releasably fixated to the patient and a lead fixation portion that is configured to secure the temporary neurostimulation lead. The fixation device can be adhesively fixated to the patient via the attachment portion and the temporary neurostimulation lead can be fixated to the lead fixation portion of the fixation device. | 05-08-2014 |
20140135885 | IMPLANTABLE LEAD HAVING A LUMEN WITH A WEAR-RESISTANT LINER - An implantable lead includes a lead body having a proximal end portion and a distal end portion. The lead body includes an insulative member having a lumen extending longitudinally between the proximal end portion and the distal end portion. The lead body also includes a generally tubular liner disposed coaxially with the lumen within the insulative member. The implantable lead also includes an electrode disposed along the lead body in the distal end portion thereof, and a conductor disposed within the lumen and electrically coupled to the electrode. A terminal connector is coupled to the proximal end portion of the lead body and to the conductor. | 05-15-2014 |
20140155972 | MRI CONDITIONALLY SAFE LEAD WITH LOW-PROFILE CONDUCTOR FOR LONGITUDINAL EXPANSION - An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor. | 06-05-2014 |
20140194963 | POLYISOBUTYLENE URETHANE, UREA AND URETHANE/UREA COPOLYMERS AND MEDICAL LEADS CONTAINING THE SAME - The present invention provides medical devices that contain polyisobutylene urethane copolymers, polyisobutylene urea copolymers and polyisobutylene urethane/urea copolymers. More particularly, the present invention provides medical leads that contain such copolymer. | 07-10-2014 |
20140243946 | IMPLANTABLE MEDICAL DEVICE INCLUDING ASSEMBLY INCORPORATING RADIOPAQUE AGENT AND ELUTABLE DRUG INTO A POLYMERIC LEAD TIP - An assembly for an implantable device can be made from PEEK and can incorporate one or more radiopaque agents and one or more elutable drug components into a polymeric lead tip. The assembly can be machined or injection molded and can be configured, for example, as a housing for an active fixation lead or as an electrode base supporting a foil electrode. | 08-28-2014 |
20140276929 | IMPLANTABLE MEDICAL DEVICES WITH SEPARATE FIXATION MECHANISM - Devices or methods such as for stimulating excitable tissue or sensing physiologic response or other signals that can use separate fixation mechanism is described. An implantable apparatus can include a modular electrostimulation electrode assembly that can include a first module and a second module that can be end user-attachable to each other and end user-detached from each other. The first module can include an electrostimulation electrode fixation support member that can be laid flat against or otherwise conform to a surface of a heart, and can define a centrally located open portal such as for permitting electrode access to the surface of the heart. The second module can include an electrostimulation electrode that can be inserted through the portal of the fixation support member such as to contact the surface of the heart such as to deliver chronic electrostimulation to the heart. | 09-18-2014 |
20140324139 | MRI CONDITIONALLY SAFE LEAD WITH MULTI-LAYER CONDUCTOR - An implantable medical lead exhibits reduced heating under MRI conditions. The lead includes a multi-layer coil conductor including an inner coil layer, a middle coil layer disposed around the inner coil layer, and an outer coil layer disposed around the middle coil layer. Each of the coil layers is characterized by one or more of a filar thickness, a coil pitch, or a coil diameter configured such that the coil conductor exhibits a high inductance when exposed to MRI radiation. Each of the coil layers is electrically connected to the other coil layers to provide parallel conductive paths resulting in a coil conductor resistance suitable for defibrillation lead applications. | 10-30-2014 |
20140364713 | ELECTRICAL AND MECHANICAL CONNECTION FOR COILED STIMULATION/SENSING LEAD CONDUCTORS - A medical electrical lead includes a threaded conductor, a coil conductor, and a sleeve. The threaded conductor has an outer surface with a threaded section that includes threads defining grooves between the threads. The coil conductor has coils seated in the grooves of the threaded conductor. The coil conductor has a coil major diameter greater than a thread major diameter. The sleeve is positioned radially outward of the coil conductor and has an inner surface in contact with the coil conductor so as to produce a radially inward force compressing the coil conductor against the threaded section of the threaded conductor. | 12-11-2014 |
20150025612 | SYSTEM AND METHODS FOR CHRONIC FIXATION OF MEDICAL DEVICES - Devices or methods such as for stimulating excitable tissue or sensing physiologic response or other signals that can use chronic fixation mechanism are described. An implantable apparatus can comprise an electrostimulation electrode assembly that can include a primary fixation member and a secondary fixation member. The primary fixation member can be actively engaged or affixed to a target tissue of a patient, and the second fixation member can be biased against the target tissue, collapsed or compressed against the target tissue when the primary fixation member is affixed to the target tissue. The electrostimulation electrode assembly can also include at least one electrode such as to contact heart or other excitable tissue such as to deliver chronic electrostimulation or sensing physiologic responses. | 01-22-2015 |
20150051612 | LEADLESS CARDIAC PACING DEVICES - Implantable leadless pacing devices and medical device systems including an implantable leadless pacing device are disclosed. An example implantable leadless pacing device may include a pacing capsule. The pacing capsule may include a housing. The housing may have a proximal region and a distal region. A first electrode may be disposed along the distal region. An anchoring member may be coupled to the distal region. One or more anti-rotation members may be fixedly attached to the distal region. | 02-19-2015 |
20150051614 | LEADLESS CARDIAC PACING DEVICES - Implantable leadless pacing devices and medical device systems including an implantable leadless pacing device are disclosed. An example implantable leadless pacing device may include a pacing capsule. The pacing capsule may include a housing. The housing may have a proximal region and a distal region. A first electrode may be disposed along the distal region. An anchoring member may be coupled to the distal region. One or more anti-rotation members may be fixedly attached to the distal region. | 02-19-2015 |
20150057520 | FIXATION MECHANISM ASSEMBLY AND METHOD FOR IMPLANTABLE DEVICES - Fixation mechanism assemblies and methods are disclosed. A fixation mechanism assembly can include a first fixation member and a second fixation member moveably engaged with the first fixation member. The first fixation member can include a housing having a tissue facing surface and an opposing non-tissue facing surface, one or more guide apertures extending between the tissue facing surface and the non-tissue facing surface, and one or more first fixation elements. The first fixation member includes a longitudinal body and a proximal end attached to, or integrated with, the tissue facing surface of the housing. The second fixation member can include one or more second fixation elements. The second fixation element can correspond to a guide aperture and includes a longitudinal body, a proximal end attached to, or integrated with, the second fixation member, and a distal end movable through the corresponding guide aperture. | 02-26-2015 |
20150088155 | MECHANICAL CONFIGURATIONS FOR A MULTI-SITE LEADLESS PACEMAKER - Devices or methods such as for stimulating excitable tissue or sensing physiologic response or other signals are described. An implantable apparatus can comprise an electrostimulation electrode assembly that can include an electrostimulation unit, at least first and second electrodes, and a fixation guide. The electrostimulation unit can generate electrostimulation for stimulating excitable tissue to achieve desired diagnostic or therapeutic effects. The first and second electrodes, coupled to the electrostimulation unit, can deliver the electrostimulation to two or more stimulation sites such as inside two or more heart chambers or on the surface of the heart. The fixation guide can engage and retain a maneuvering device used for steerably positioning and securing the first and second electrostimulation electrodes at respective stimulation site. | 03-26-2015 |