Cardiac Pacemakers, Inc.

Boston Scientific Scimed, Inc.

Joseph Walker

Devon N Arnholt

G Shantanu Reddy

David R Wulfman

Masoud Ameri

Douglas Dean Pagoria

Peter Hall

Ronald W Kunkel

Angelo Fruci

Steven E Schultz

Lily Lim

Patrick J Stocker

Imad Libbus

Allan Charles Shuros

Rodney W Salo

Benjamin J Haasl

Joseph M Pastore

Ronald W Heil, Jr

Shantha Arcot-Krishnamurthy

Eric G Lovett

James P Rohl

Joel T Eggert

Eric A Mokelke

Binh C Tran

Daniel Shuey

Greg Paul Carpenter

Douglas Pennington

Todd College

Aaron Abbott

Jack Gordon

Christopher J Koudela

Edward J Maierhofer

Garth Mindermann

Kimberly A Miklos

Anand Iyer

Brian Kennedy

Peter C Hall

A spring element for a contact force sensing medical catheter. The spring element includes a first ring, a second ring spaced apart from the first ring, a plurality of struts connecting the first ring to the second ring, and a plurality of interlocking features. The second ring and the first ring are coaxially aligned with a longitudinal axis of the spring element. The plurality of struts is configured to permit elastic, relative axial and radial displacement between the first ring and the second ring. The plurality of interlocking features is configured to limit the relative axial and radial displacement between the first ring and the second ring.

Catheter and spring element for contact force sensing

The present disclosure relates generally to the field of medical devices for treating heart disease. In particular, the present disclosure relates to medical devices, systems, and methods for delivering artificial chordae tendineae in a patient. A system for delivering a chordae tendineae into a heart may include a delivery catheter. A clamp catheter may be configured to translate through the delivery catheter. A spreader may be disposed on the clamp catheter. A first clamp may be at least partially contained in the spreader in a closed configuration and may be attached to the chordae tendineae. An anchor catheter may be configured to translate through the delivery catheter and may have an anchor attached to the chordae tendineae. A sheath may be extended over the anchor catheter and anchor and may be configured to restrain an arm of the anchor.

Devices, systems, and methods for artificial chordae tendineae

A medical device lead includes a tubular conductive element disposed over a lead body. The tubular conductive element includes at least one segment having one or more kerfs formed radially therethrough in a predetermined configuration so as to affect at least one electrical property, e.g., electrical impedance, of the segment. The segment may form a shocking conductor of the medical device lead. The tubular conductive element may alternatively include proximal, intermediate and distal segments each having one or more kerfs formed radially therethrough, where the one or more kerfs in each of the proximal and intermediate segments are configured so that these segments each have a higher electrical impedance than the distal segment. A layer of insulative material is disposed over the proximal and intermediate segments, so that the proximal and intermediate segments of the tubular conductive element are operable to filter electromagnetic energy from an external source.

Construction of an MRI-safe tachycardia lead

Various embodiments concern shielding an implantable lead from RF energy associated with MRI scans. The lead can include a distal region, a proximal region, an intermediate region between the distal region and the proximal region, at least one electrode disposed on the distal region, and at least one conductor extending from the proximal region to the at least one electrode. Implanting of the lead can include coiling a portion of the intermediate region to define one or more loops and selectively shielding the one or more loops of the lead with a RF shield. The RF shield can comprise metallic material and can be configured to reduce RF signal coupling to the at least one conductor along the one or more loops.

RF shield for an implantable lead

An IS-4 terminal connector assembly includes three terminal electrodes positioned over an inner tubular member such that they are radially offset from one another. Each of the terminal ring electrodes are configured such that they can withstand both tensile and cyclical bending loads with minimal compromise in their outer geometry. Additionally, each of the terminal electrodes is configured such that they have both an inner and outer geometry that facilitates adequate insulation between a select terminal electrode and an adjacent conductor. Additionally, each of the terminal ring electrodes is configured such that they facilitate an external approach to staking a cable conductor.

Terminal connector assembly for a medical electrical lead

An active fixation lead may have a lead body formed at least in part from an inner member and an outer sheath. The inner member may include a pace/sense lumen and one or more cable lumens. The inner member may include one or more longitudinally extending crumple zones that are configured to reduce stress within the pace/sense lumen that could otherwise be caused by compressive forces applied to the lead.

Active fixation leads and method of assembly

Various embodiments concern leads having low peak MRI heating for improved MRI compatibility. Various leads include a lead body having at least one lumen, a proximal end configured to interface with an implantable medical device, and a distal end. Such leads can further include a conductor extending along at least a portion of the lead body within the at least one lumen and a defibrillation coil extending along an exterior portion of the lead body and in electrical connection with the conductor, wherein at least a section of the defibrillation coil is under longitudinal compression. The longitudinal compression can lower peak MRI heating along the defibrillation coil. The longitudinal compression may maintain circumferential contact between adjacent turns of the section of the defibrillation coil.

MRI compatible lead coil

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. The medical device lead also includes an electrode in the distal region of the flexible body, and a cable conductor having a proximal end electrically coupled to the connector and a distal end electrically coupled to the electrode. The cable conductor consists of a single helically coiled filar including a plurality of co-radial turns and having an outer diameter of less than about 0.020 inch (0.508 mm).

Implantable medical device lead including a unifilar coiled cable

Disclosed herein, among other things, is system for thermal neuroinhibition. According to an embodiment, the system includes at least one implantable fluid-filled conduit adapted to be placed adjacent to a neural target. The system also includes an implantable housing including a power source, a heat pump deriving power from the source and connected to the conduit, and a controller within the housing. The controller is connected to the heat pump, and is adapted to control the heat pump to effect fluid flow in the conduit to cool the neural target using electromechanical refrigeration to reversibly inhibit neural activity as part of a medical treatment.

Systems and methods for thermal neuroinhibition

A medical device lead includes a proximal connector configured to couple the lead to a pulse generator and an insulative lead body extending distally from the proximal connector. The lead also includes an inner conductor and one or more cable conductors coupled to the proximal connector at a proximal end and extending through the lead body. The lead further includes one or more defibrillation coil electrodes coupled to a distal end of the one or more cable conductors. The one or more defibrillation coil electrodes are disposed around and electrically isolated from the inner conductor. The one or more defibrillation coil electrodes have a first winding direction and the inner conductor has a second winding direction opposite the first winding direction.

Implantable medical device lead including inner coil reverse-wound relative to shocking coil

A method and device for treating myocardial ischemia in which an implantable pulse generator delivers electrical stimulation to electrodes disposed near a coronary artery. The stimulation parameters may be adjusted to produce vasodilation and/or vasoconstriction of the artery. The device may be configured to operate in a vasodilation and/or vasoconstriction mode in accordance with specified entry and exit conditions.

Method and device for cardiac vasoactive therapy

Growing community of inventors

Shoreview, MN, United States of America

Joseph Walker