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1. EP3932351 - CONTACT SENSING FOR AN ABLATION CATHETER

Office
European Patent Office
Application Number 20183219
Application Date 30.06.2020
Publication Number 3932351
Publication Date 05.01.2022
Publication Kind A1
IPC
A61B 18/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A61B 18/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
A61B 90/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
90Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/-A61B50/171
CPC
A61B 2090/065
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
90Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
06Measuring instruments not otherwise provided for
064for measuring force, pressure or mechanical tension
065for measuring contact or contact pressure
A61B 18/1492
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
1492having a flexible, catheter-like structure, e.g. for heart ablation
A61B 2018/00875
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00636Sensing and controlling the application of energy
00773Sensed parameters
00875Resistance or impedance
Applicants KONINKLIJKE PHILIPS NV
Inventors OREN EITAN
SHLAIN ADAR
COHEN STAVIT
IBRAGIMOV ZALMAN
FAINGERSH-KLEBANOV ANNA
Designated States
Priority Data 20183219 30.06.2020 EP
Title
(DE) KONTAKTERFASSUNG FÜR EINEN ABLATIONSKATHETER
(EN) CONTACT SENSING FOR AN ABLATION CATHETER
(FR) DÉTECTION DE CONTACT POUR UN CATHÉTER D'ABLATION
Abstract
(EN) A mechanism for predicting whether or not contact occurs between an ablation therapy catheter and an anatomical structure. The mechanism proposes two modes of operation. A first mode is used if the ablation therapy catheter is currently performing ablation, e.g. current is being supplied by an ablation controller to electrodes of the ablation therapy catheter, whereas a second mode is used if the ablation therapy catheter is not currently performing ablation. The two modes use two different algorithmic processes to predict whether or not contact occurs between the ablation therapy catheter and the anatomical structure.
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