EP0911059A2
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EP
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Ablation catheter with sensing electrodes
Assignee: Biosense Webster Inc
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Filing: 1998-10-22
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Granted: —
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Expires: 2018-10-22
Abstract
Abstract Apparatus for endocardiac therapy, including an elongate probe (18) for insertion into the heart of a subject, the probe having distal and proximal ends. The probe includes an ablation device (26) near the distal end of the probe for ablating heart tissue and at least two sensing electrodes (28,30), for sensing activation signals in the heart tissue adjacent to the ablation device. Signal analyzer circuitry (36) receives and correlates the activation signals. Preferably, the probe includes a position sensor (32) adjacent to the ablation device, which generates signals responsive to the position of the probe with respect to an external frame of reference.
Inventors
- 👤 Shlomo Ben-Haim
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 22:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/06; A61B18/00; A61B18/04; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/06; A61N1/40; A61N1/403; A61B18/12; A61B18/14; A61B18/1492; A61B2018/00005; A61B2018/00041; A61B34/00; A61B34/20; A61B2034/2046; A61B2034/2051; A61B5/061; A61B5/062
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
61 words
Intracardiac apparatus, comprising: an elongate probe for insertion into the heart of a subject, said probe having distal and
proximal ends and comprising at least two sensing electrodes near the distal end of the
probe, for sensing signals in the heart tissue, and signal analyzer circuitry for receiving the signals from the probe and calculating a
correlation measure of the signals.
Claim 2
Dependent Claim
11 words
Apparatus of claim 1, wherein the sensing electrodes comprise bipolar
electrodes.
Claim 3
Dependent Claim
32 words
Apparatus of claim 1 or claim 2, wherein the probe comprises a position sensor,
for generating signals responsive to the position of the probe with respect to an external
frame of reference.
Claim 4
Dependent Claim
43 words
Apparatus of any one of claims 1 to 3, wherein the probe is positionable at a
plurality of locations in the heart, and the signal analyzer circuitry is adapted to produce
a map of the correlation measures determined at the plurality of locations.
Claim 5
Dependent Claim
24 words
Apparatus of any one of claims 1 to 4, wherein the probe comprises a tissue
ablation device adjacent the distal end of the probe.
Claim 6
Dependent Claim
28 words
Apparatus of claim 5, wherein the ablation device comprises an ablation
electrode, and wherein one of the at least two sensing electrodes is comprised in the
ablation electrode.
Claim 7
Dependent Claim
26 words
Apparatus of claim 5 or claim 6, wherein the ablation device is disposed over the
outer surface of the probe, substantially covering the distal end thereof.
Claim 8
Dependent Claim
46 words
Apparatus of any one of claims 5 to 7, wherein the ablation device and
electrodes are positioned along an outer, radial surface of the probe, wherein one
electrode is axially proximal to the ablation device, and the other electrode is axially
distal to the ablation device.
Claim 9
Dependent Claim
23 words
Apparatus of any one of claims 5 to 8, and comprising a cooler, for cooling the
heart tissue, adjacent to the ablation device.
Claim 10
Dependent Claim
93 words
Apparatus for determining the effectiveness of treatment of abnormal
conduction in the heart of a subject, comprising: an elongate probe for insertion into the heart of the heart, said probe having distal and
proximal ends and comprising at least two sensing electrodes near the distal end of the
probe, for sensing activation signals in the heart tissue; and signal analyzer circuitry for receiving the activation signals from the probe, determining
a correlation measure thereof and comparing a first correlation measure determined
before the treatment with a second correlation measure determined after the treatment.
References Cited (Backward Citations)
US5450846A
Cited
US5391199A
Cited
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