公开(公告)号：WO2021113463A1

公开(公告)日：2021-06-10

申请号：PCT/US2020/063039

申请日：2020-12-03

Applicant: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC. ,  BYRD, Israel ,  OLSON, Eric ,  DREW, Kenneth ,  TRANTER, John ,  TEGG, Troy

Inventor： SUTERMEISTER, Derek ,  DALY, Jake ,  MOON, Boyce

IPC: A61B18/14 ,  A61N1/32

Abstract: Disclosed herein is an electroporation system including a catheter shaft, at least one electrode coupled to the catheter shaft at a distal end thereof, and an electroporation generator coupled in communication with the at least one electrode. The electroporation generator configured to supply a biphasic pulse signal to the at least one electrode. The biphasic pulse signal includes a first phase having a first polarity and a first pulse duration, and a second phase having a second polarity opposite to the first polarity, and a second pulse duration. Each of the first phase and second phase has a voltage amplitude of at least 500 volts and a pulse duration of less than 20 microseconds. The second phase is generated at a non-zero interval following the first phase.

公开(公告)号：WO2008082802A3

公开(公告)日：2008-09-04

申请号：PCT/US2007084678

申请日：2007-11-14

Applicant: ST JUDE MEDICAL ATRIAL FIBRILL ,  HAUCK JOHN ,  SCHWEITZER JEFFREY A ,  DREW KENNETH H

Inventor： HAUCK JOHN ,  SCHWEITZER JEFFREY A ,  DREW KENNETH H

IPC: A61B5/05

CPC classification number: A61B5/063 ,  A61B5/0538 ,  A61B5/6852 ,  A61B5/6885 ,  A61B5/7228 ,  A61B18/1492 ,  A61B34/20 ,  A61B2018/00755 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2018/1467 ,  A61B2018/1472 ,  A61B2034/105 ,  A61B2034/2051 ,  A61B2090/065 ,  A61B2560/0475 ,  A61B2562/0214

Abstract: A system and method is provided that allows for determining the local impedance of one or more electrodes (20, 22a) of an electrode catheter (14). Such local impedance may be utilized to identify the relative position of an electrode catheter (14) to a sheath (18) of a guiding introducer. In another arrangement, local impedance of a catheter electrode can be utilized to calibrate a catheter electrode to provide improved contact sensing.

Abstract translation: 提供了允许确定电极导管（14）的一个或多个电极（20,22a）的局部阻抗的系统和方法。 这种局部阻抗可以用于识别电极导管（14）相对于引导导引器的鞘（18）的相对位置。 在另一种布置中，可利用导管电极的局部阻抗来校准导管电极以提供改善的接触感测。

公开(公告)号：WO2008082802A2

公开(公告)日：2008-07-10

申请号：PCT/US2007/084678

申请日：2007-11-14

Applicant: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC. ,  HAUCK, John ,  SCHWEITZER, Jeffrey A. ,  DREW, Kenneth H.

Inventor： HAUCK, John ,  SCHWEITZER, Jeffrey A. ,  DREW, Kenneth H.

IPC: A61B5/05

CPC classification number: A61B5/063 ,  A61B5/0538 ,  A61B5/6852 ,  A61B5/6885 ,  A61B5/7228 ,  A61B18/1492 ,  A61B34/20 ,  A61B2018/00755 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2018/1467 ,  A61B2018/1472 ,  A61B2034/105 ,  A61B2034/2051 ,  A61B2090/065 ,  A61B2560/0475 ,  A61B2562/0214

Abstract: A system and method is provided that allows for determining the local impedance of one or more electrodes (20, 22a) of an electrode catheter (14). Such local impedance may be utilized to identify the relative position of an electrode catheter (14) to a sheath (18) of a guiding introducer. In another arrangement, local impedance of a catheter electrode can be utilized to calibrate a catheter electrode to provide improved contact sensing.

Abstract translation: 提供了允许确定电极导管（14）的一个或多个电极（20,22a）的局部阻抗的系统和方法。 这种局部阻抗可用于识别电极导管（14）到导向引导器的护套（18）的相对位置。 在另一种布置中，可以使用导管电极的局部阻抗来校准导管电极以提供改进的接触感测。