公开(公告)号：US20240164834A1

公开(公告)日：2024-05-23

申请号：US18506524

申请日：2023-11-10

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Greg Olson ,  Isaac Remer ,  Jodee Wakefield ,  Derek Sutermeister ,  Troy T. Tegg ,  Patrick K. Kasi ,  D. Curtis Deno

IPC: A61B18/14 ,  A61B5/00 ,  A61B5/287 ,  A61B5/367 ,  A61B18/12

CPC classification number: A61B18/1492 ,  A61B5/287 ,  A61B5/367 ,  A61B5/6858 ,  A61B18/1206 ,  A61B2018/00839

Abstract: A catheter assembly is provided. The catheter assembly includes a tip electrode array including at least one tip electrode, the tip electrode array located at a distal end of the catheter assembly, and a mini electrode array including a plurality of mini electrodes, the mini electrode array positioned proximal of the tip electrode array, wherein each of the at least one tip electrode and each of the plurality of mini electrodes are configured to be activated independent of one another for mapping applications, and wherein at least some of the at least one tip electrode and the plurality of mini electrodes are configured to be activated in unison for ablation applications.

公开(公告)号：US11766285B2

公开(公告)日：2023-09-26

申请号：US16758797

申请日：2018-10-15

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Troy T. Tegg ,  Salo Arias ,  Derek C. Sutermeister

IPC: A61B18/02 ,  A61B18/00

CPC classification number: A61B18/02 ,  A61B2018/0022 ,  A61B2018/00577 ,  A61B2018/00678 ,  A61B2018/00744 ,  A61B2018/00791 ,  A61B2018/0212

Abstract: The instant disclosure relates to electrophysiology catheter for tissue ablation. In particular, the instant disclosure relates to a system controller for facilitating an ablation therapy at a cryogenic ablation balloon. In an embodiment, an ablation an ablation catheter system comprising a catheter shaft including proximal and distal ends, a catheter handle coupled to a proximal end of the catheter shaft, a cryogenic ablation ballon coupled to the distal end of the catheter shaft, the ablation ballon configured and arranged to deliver a cryogenic ablation therapy to target tissue, an ablation system controller coupled to the catheter handle.

公开(公告)号：US11690670B2

公开(公告)日：2023-07-04

申请号：US17338354

申请日：2021-06-03

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Zachary L. Helgeson ,  Alexander C. Houck ,  John Her ,  Salo Arias ,  Somally Mom ,  Brian M. Monahan ,  Neil D. Hawkinson ,  James R. Nigg ,  James C. Marrs ,  Xuan Yen Khieu ,  Troy T. Tegg ,  Jill A. LaFavor ,  Israel A. Byrd

IPC: A61B18/14 ,  A61B5/00 ,  A61B5/01 ,  A61B5/021 ,  A61B5/283 ,  A61B34/20 ,  A61B18/00 ,  A61M25/01 ,  A61M25/00 ,  A61B18/16 ,  A61B5/318

CPC classification number: A61B18/1492 ,  A61B5/01 ,  A61B5/021 ,  A61B5/283 ,  A61B5/6858 ,  A61B34/20 ,  A61B5/318 ,  A61B5/6859 ,  A61B2018/00029 ,  A61B2018/00059 ,  A61B2018/00166 ,  A61B2018/00267 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00791 ,  A61B2018/00839 ,  A61B2018/00892 ,  A61B2018/1405 ,  A61B2018/1465 ,  A61B2018/1467 ,  A61B2018/1475 ,  A61B2018/165 ,  A61B2018/167 ,  A61B2034/2051 ,  A61M25/0013 ,  A61M25/0023 ,  A61M25/0138 ,  A61M25/0147 ,  A61M25/0158

Abstract: An elongate medical device shaft may comprise an elongate body and an annular electrode disposed on the elongate body. The annular electrode may define a longitudinal axis and have an outer diameter. The outer diameter may be greater at an axial center of the electrode than at an axial end of the electrode. Additionally or alternatively, the elongate body may comprise three longitudinal sections having three wall thicknesses. The middle wall thickness may be less than the proximal and distal wall thicknesses and the distal wall thickness may be less than the proximal wall thickness. Additionally or alternatively, the shaft may comprise an inner cylindrical structure and an outer tube. The outer tube may comprise a first radial layer and a second radial layer that is radially-outward of the first radial layer, the first radial layer, second radial layer, and inner structure having different stiffnesses.

公开(公告)号：US11642063B2

公开(公告)日：2023-05-09

申请号：US16548487

申请日：2019-08-22

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Troy T. Tegg

IPC: A61B5/287 ,  A61B5/00 ,  A61B18/14 ,  A61N1/362 ,  A61B17/00 ,  A61B18/00

CPC classification number: A61B5/287 ,  A61B5/6858 ,  A61B18/1492 ,  A61N1/362 ,  A61B2017/00526 ,  A61B2018/00267 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2562/028 ,  A61B2562/125 ,  A61B2562/222

Abstract: Embodiments of the present disclosure include a medical device. The medical device can include a catheter shaft that includes a proximal end and a distal end, the catheter shaft defining a catheter shaft longitudinal axis. A flexible tip portion can be located adjacent to the distal end of the catheter shaft, the flexible tip portion comprising a flexible framework, wherein the flexible framework is curved about a transverse framework axis that is disposed transverse to the catheter shaft longitudinal axis without application of a force external to the medical device. A plurality of microelectrodes can be disposed on the flexible framework and can form a flexible array of microelectrodes adapted to conform to tissue.

公开(公告)号：US11439318B2

公开(公告)日：2022-09-13

申请号：US17092742

申请日：2020-11-09

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Gregory K. Olson ,  Troy T. Tegg ,  Andrew R. Oliverius ,  Zachary L. Helgeson

IPC: A61B18/14 ,  A61B5/01 ,  A61B5/06 ,  A61B5/00

Abstract: An medical device, comprising an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal portion and a shaft distal portion that is sized and configured for insertion into a body. An active magnetic position sensor can be disposed within the shaft distal portion.

公开(公告)号：US11350986B2

公开(公告)日：2022-06-07

申请号：US15088052

申请日：2016-03-31

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Troy T. Tegg ,  Dale E. Just ,  Gregory K. Olson

IPC: A61B18/14 ,  A61B18/12 ,  A61B18/00

Abstract: Method and devices for delivering pulsed RF ablation energy to enable the creation of lesions in tissue are disclosed. The delivery of RF energy is controlled such that the generator power setting remains sufficiently high to form adequate lesions while mitigating against overheating of tissue. An ablation catheter tip having high-thermal-sensitivity comprises a thermally-insulative ablation tip insert supporting at least one temperature sensor and encapsulated, or essentially encapsulated, by a conductive shell. A system for delivering pulsed RF energy to a catheter during catheter ablation comprises an RF generator and a pulse control box operatively connected to the generator and configured to control delivery of pulsatile RF energy to an ablation catheter comprising at least one temperature sensor mounted in its tip. Also disclose is a method of controlling the temperature of an ablation catheter tip while creating a desired lesion using pulsatile delivery of RF energy.

公开(公告)号：US11304622B2

公开(公告)日：2022-04-19

申请号：US15896055

申请日：2018-02-13

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Ryan K. Buesseler ,  Troy T. Tegg ,  Kevin Edmunds

IPC: A61B5/06 ,  A61B5/00 ,  A61B18/14 ,  A61B8/12 ,  A61M25/01 ,  A61B5/287 ,  A61B18/00 ,  A61B34/20 ,  A61B18/02 ,  A61B90/00

Abstract: An apparatus for detecting relative positioning of medical devices located within a human body, the apparatus comprising an inner elongate member comprising a plurality of electrodes and a first sensor member, where the first sensor member is located a known distance from each of the plurality of electrodes, and an outer elongate member comprising a first sensor, and an outer sensor member located between the first sensor and an inner wall of the outer elongate member, where the inner elongate member is configured to move within the outer elongate member and the first sensor is configured to sense a signal generated by movement of the inner elongate member relative to the outer elongate member, and a position detection module including an electronic control unit configured to detect a position of the first sensor member relative to the first sensor based on the signal.

公开(公告)号：US11064929B2

公开(公告)日：2021-07-20

申请号：US14969272

申请日：2015-12-15

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Sameer D. Pai ,  Andrew R. Oliverius ,  Troy T. Tegg

IPC: A61B18/12 ,  A61B5/283 ,  A61B18/14 ,  A61B5/00 ,  A61B5/287 ,  A61B18/02 ,  A61B18/24 ,  A61M3/02 ,  A61B18/00

Abstract: The instant disclosure relates generally to a tip electrode for delivering irrigant to a distal portion of the tip electrode and irrigated catheter tips incorporating such a tip electrode. The distal portion of the tip electrode can have additional fluid ports on the distal edge of the tip to provide additional fluid flow to that region.

公开(公告)号：US11020177B2

公开(公告)日：2021-06-01

申请号：US15827842

申请日：2017-11-30

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Daniel Joe Potter ,  Xuan Yen Khieu ,  Benjamin Carl Breidall ,  Andrew Oliverius ,  Sameer Deviprasad Pai ,  Troy T. Tegg

IPC: A61B18/14 ,  A61M3/02 ,  A61B5/01 ,  A61B5/06 ,  A61M25/01 ,  A61B18/20 ,  A61B18/02 ,  A61B18/18 ,  A61B18/00 ,  A61M25/00 ,  A61B34/20

Abstract: A catheter tip is disclosed comprising a tip electrode comprising a ledge feature, and a center cavity and a manifold assembly comprising a fluid lumen manifold and a stop tube. The stop tube can be coupled to the fluid lumen manifold and configured to abut the ledge feature such that a distal end of the fluid lumen manifold extends a pre-determined distance into the center cavity of the tip electrode. The fluid lumen manifold can comprise a plurality of sideholes which can be sized and configured to distribute an irrigant to the tip electrode. The catheter tip can comprise a flexible tip electrode.

公开(公告)号：US20210069474A1

公开(公告)日：2021-03-11

申请号：US17101944

申请日：2020-11-23

Applicant: St. Jude Medical, Cardiology Division, Inc.

Inventor： Sameer D. Pai ,  Zachary L. Helgeson ,  Troy T. Tegg

IPC: A61M25/01 ,  A61B18/14 ,  A61B5/00 ,  A61B5/0215 ,  A61B5/024 ,  A61B5/042

Abstract: A catheter with three distinct compression resistance coils, including a body coil and two pull wire coils, is disclosed. The triple coil system can provide maximal resistance to compression of the catheter's proximal shaft, as well as maximization of the curve angle that the catheter tip can achieve. Additionally, the tri-coil catheter can allow for a lower initial compression load and a more flexible proximal shaft. A gap between the outer diameter of the pull wire and the inner diameter of the pull wire compression coil that is equal to about 10-30% of inner diameter of the pull wire compression coil can provide optimal catheter performance.