St. Jude Medical, Cardiology Division, Inc.

St. Jude Medical International Holding S.a.r.l.

Varun Bansal

Troy Terrance Tegg

Evan Michael Leingang

Brett Allen Hillukka

Richard Arthur Thompson, Ii

David J Kim

Michael S Bowers

Bradley Charles Knippel

Andrew R Oliverius

James C Marrs

Zachary L Helgeson

Ryan Hendrickson

Timothy S Marass

Ryan Cerepak

Richard A Thompson

Jodee Wakefield

Brent Ford

Alexandre Ioan Romoscanu

Zach Helgeson

David Kim

Jodee M Wakefield

Lucas Parra

Abhishek Datta

Marom Bikson

Preet Minhas

Jorge Vega

Dan Steingart

Johnson Ho

Jinal Patel

James Marrs

A uni-directional, plunger-type electrophysiology catheter handle is designed to reduce the input force a user must apply to deflect the distal end of the catheter. A force amplifier is operatively coupled to a deflection actuator of the handle. The force amplifier can be a pulley or a system of gears. The force amplifier can increase the output force of deflection actuator by the same factor as that by which the user input force is reduced. A variable-friction autolocking system can also be used to reduce the input force a user must apply during initial deflection as compared to later deflection of the catheter.

Reduced actuation force electrophysiology catheter handle

A catheter including a loop member adjustment mechanism for adjusting a diameter of a loop member is provided. The catheter further includes a longitudinally-extending catheter shaft including a proximal end portion and a distal end deflectable portion, wherein the distal end deflectable portion includes the loop member. The loop adjustment mechanism includes a loop member pull wire, wherein a distal end of the loop member pull wire is attached to the loop member, and a sliding member, located within the handle, wherein the sliding member is configured to translate within the handle, and wherein a proximal end of the pull wire is attached to the sliding member.

Mapping variable loop catheter handle

Disclosed herein is a catheter tip sized and configured to fit onto a distal end of a catheter shaft, the catheter shaft having a shaft outer diameter. The catheter tip includes a base, a tip having an arcuate shape, an outer surface extending from the base to the tip along a longitudinal axis, the outer surface having a diameter at the base that is substantially equal to the shaft outer diameter, and an inner surface extending from the base, wherein the inner surface defines a first region having a first diameter and a second region having a second diameter, wherein the second diameter is less than the first diameter, and wherein the second region is distal of the first region and configured to receive at least one component extending beyond the distal end of the catheter shaft.

Catheter tip assembly for a catheter shaft

An electrode loop assembly for a catheter includes a form wire shaped as a loop, an activation wire coupled to the form wire, and a support tube defining a lumen and enclosing the form wire and the activation wire therein. The activation wire is operable to selectively vary a diameter of the loop, and is routed along a radial inner side of the form wire. The support tube extends along a longitudinal axis from a proximal end to a distal end, and has an oblong cross-section having a major axis. The support tube is twisted about the longitudinal axis such that an orientation of the major axis changes along a length of the support tube.

Electrode loop assembly including shaped support tube and method of assembling same

Actuators for steerable medical devices are disclosed that not only deflect or steer a portion of a medical device (e.g., a distal portion of a catheter shaft), but also include mechanisms for actively returning the deflected portion of the medical device to an initial configuration (e.g., straight or substantially straight). These active return-to-straight mechanisms may return a catheter shaft from a deflected configuration to a substantially straight configuration throughout a medical procedure, may employ one or more tension members extending along the catheter shaft, and may comprise a gross return actuator and a fine return actuator. For example, the gross return actuator may be configured to partially reverse the deflection of the distal portion of the catheter; and the fine return actuator may be configured to continue reversing the deflection. The gross return actuator may automatically trigger or actuate (mechanically or electromechanically) the fine return actuator.

Catheter having an active return-to-straight mechanism

Various embodiments of the present disclosure can include a medical device assembly. The medical device assembly can comprise an elongate hollow cylindrical body that extends along a longitudinal axis. A distal cap portion can extend along the longitudinal axis. A proximal end of the distal cap portion can be connected to a distal end of the elongate hollow cylindrical body. A wire management port can be defined in the distal cap portion.

Connector shield for sensor enabled medical devices

The present disclosure provides a medical device () comprising a friction member () configured to assist in controlling and/or limiting unintentional and/or undesirable movement between two releasably secured components () of the medical device. The releasably secured components may be part of a resistance assembly for holding a medical device actuator () in a particular position and/or to improve the ease of which the activator moves into one position versus another position.

Mechanism for controlling unintentional movement of components

Catheter handle

Growing community of inventors

Plymouth, MN, United States of America

Varun Bansal