公开(公告)号：US20220370120A1

公开(公告)日：2022-11-24

申请号：US17664824

申请日：2022-05-24

Applicant: Medtronic, Inc.

Inventor： Zhongping C. Yang ,  Thomas A. Anderson ,  Lars M. Mattison ,  Nicolas Coulombe ,  Randal C. Schulhauser ,  Robert C. Kowal

IPC: A61B18/14 ,  A61B17/00

Abstract: A method includes cutting a septal wall between a right atrium and left atrium of a heart of a patient to form a multi-cuspid valvular shunt, and ablating septal wall tissue of at least a portion of the multi-cuspid valvular shunt to cause the ablated portion of the multi-cuspid valvular shunt to be biostable.

公开(公告)号：US20250072963A1

公开(公告)日：2025-03-06

申请号：US18953637

申请日：2024-11-20

Applicant: Medtronic, Inc.

Inventor： Brian T. Howard ,  Mark T. Stewart ,  Lars M. Mattison

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

Abstract: A medical device including a catheter having a proximal portion and a distal portion. A plurality of electrodes is disposed along the distal portion, the plurality of electrodes including a first electrode pair having a first fixed polarity and a second electrode pair having a second fixed polarity different than the first fixed polarity. A first lumen extends through the distal portion, the first lumen includes a first conductor configured to connect to a first electrode of the first electrode pair and a second conductor configured to connect to a second electrode of the first electrode pair. A second lumen extends through the distal portion and separated from the first lumen, the second lumen includes a third conductor configured to connect to a first electrode of the second electrode pair and a fourth conductor configured to connect to a second electrode of the second electrode pair.

公开(公告)号：US20230414275A1

公开(公告)日：2023-12-28

申请号：US18332953

申请日：2023-06-12

Applicant: Medtronic, Inc.

Inventor： Brian T. Howard ,  Megan M. Schmidt ,  Lars M. Mattison

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

CPC classification number: A61B18/1492 ,  A61B5/4848 ,  A61B18/1206 ,  A61B2018/00791

Abstract: A medical system includes a generator configured to generate pulsed electric field (PEF) energy. A medical device is in electrical communication with the generator and has a plurality of electrodes configured to deliver the PEF energy to a target tissue to create electroporated regions in the target tissue. A delivery element tracking system is in communication with the generator and the medical device. The tracking system has processing circuitry configured to: measure a position of at least one of the plurality of electrodes prior to delivery of PEF energy to the target tissue with respect to the target tissue and correlate a PEF field distribution based on the delivery of PEF energy to the target tissue to determine or modify at least one metric of a therapeutic effect from the PEF delivery at positions other than the measured location of the plurality of electrodes.

公开(公告)号：US20230115101A1

公开(公告)日：2023-04-13

申请号：US17934018

申请日：2022-09-21

Applicant: Medtronic, Inc.

Inventor： Zhongping Yang ,  Lars M. Mattison ,  Jorge A. Vergen ,  Devan D. Barth ,  Noah A. Deraney ,  Christine R. Huyett ,  Clayton P. Witherspoon ,  Jia Yuan Neoh ,  Lina T. Abajebel

IPC: A61B17/32 ,  A61B17/34

Abstract: A medical device having an elongate body with a proximal portion, a distal portion, and defining a lumen therethrough. The medical device has an expandable element coupled to the distal portion of the elongate body, the expandable element defining a proximal portion, a distal portion opposite the proximal portion and an intermediate portion disposed between the proximal portion and the distal portion. The expandable element also has an inner surface and an outer surface opposite the inner surface. The medical device has a plurality of cutting members, each cutting member being coupled with the outer surface of the expandable element, each cutting member having a proximal end and a distal end opposite the proximal end, the proximal end being proximate the proximal portion of the expandable element and the distal end being proximate to the intermediate portion of the expandable element.

公开(公告)号：US20210401493A1

公开(公告)日：2021-12-30

申请号：US17357272

申请日：2021-06-24

Applicant: Medtronic, Inc.

Inventor： Brian T. Howard ,  Mark T. Stewart ,  Lars M. Mattison

IPC: A61B18/14

Abstract: A method of ablating tissue with pulse field ablation energy includes generating a single pulse of energy between a first set of one or more conducting elements of a first polarity and a second set of one or more conducting elements of a second polarity, the single pulse of energy having a first pulse width and consecutively generating pulses of energy with opposite polarity to that of the single pulse of energy, the pulses having a collective pulse width equal to the first pulse width.

公开(公告)号：US20210369340A1

公开(公告)日：2021-12-02

申请号：US17246766

申请日：2021-05-03

Applicant: Medtronic, Inc.

Inventor： Brian T. Howard ,  Mark T. Stewart ,  Lars M. Mattison

IPC: A61B18/14 ,  A61B18/12

Abstract: A medical device including a catheter having a proximal portion and a distal portion. A plurality of electrodes is disposed along the distal portion, the plurality of electrodes including a first electrode pair having a first fixed polarity and a second electrode pair having a second fixed polarity different than the first fixed polarity. A first lumen extends through the distal portion, the first lumen includes a first conductor configured to connect to a first electrode of the first electrode pair and a second conductor configured to connect to a second electrode of the first electrode pair. A second lumen extends through the distal portion and separated from the first lumen, the second lumen includes a third conductor configured to connect to a first electrode of the second electrode pair and a fourth conductor configured to connect to a second electrode of the second electrode pair.