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EP0900547A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Steerable catheter for detecting and revascularizing ischemic myocardial tissue

Assignee: Biosense Webster Inc
•
Filing: 1998-09-04
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Granted: —
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Expires: 2018-09-04
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Abstract

Abstract A steerable, direct myocardial revascularization catheter comprises a catheter body, a control handle, a tip section, and a means for deflecting the tip section by manipulation of the control handle. The catheter body has an outer wall, proximal and distal ends and at least one lumen extending therethrough. The control handle is situated at the proximal end of the catheter body. The tip section comprises a flexible tubing having proximal and distal ends and at least one lumen extending therethrough. The proximal end of the tip section is fixedly attached to the distal end of the catheter body. The catheter also comprises an electromagnetic sensor in the distal portion of the tip section for producing electrical signals indicative of the location of the electromagnetic sensor. An electromagnetic sensor cable is electrically connected to the electromagnetic sensor and extends through the tip section, catheter body and control handle for carrying electrical signals from the electromagnetic sensor to a circuit board located in the control handle. The catheter further comprises an optic fiber having a distal end and a proximal end. The optic fiber extends through the control handle, a lumen in the catheter body and a lumen in the tip section. The distal end of the optic fiber is substantially flush with the distal end of the tip section.

Inventors

  • 👤 Dean M. Ponzi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 17:00
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00039; A61B2017/00044; A61B2017/00048; A61B2017/00053; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00292; A61B2017/003; A61B2018/00053; A61B2018/0016; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B2018/00636; A61B2018/00773; A61B2018/00839; A61B34/00; A61B34/20; A61B2034/2046; A61B2034/2051; A61B2218/00; A61B2218/001; A61B2218/002; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/287; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0147; A61M2025/015

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 198 words
A steerable, direct myocardial revascularization catheter comprising: a catheter body having an outer wall, proximal and distal ends and at least one lumen extending therethrough; a control handle at the proximal end of the catheter body; a tip section comprising a flexible tubing having proximal and distal ends and at least one lumen extending therethrough, wherein the proximal end of the tip section is fixedly attached to the distal end of the catheter body; an electromagnetic sensor in the distal portion of the tip section for producing electrical signals indicative of the location of the electromagnetic sensor; an electromagnetic sensor cable electrically connected to the electromagnetic sensor and extending through the tip section, catheter body and control handle for carrying electrical signals from the electromagnetic sensor to a circuit board located in the control handle; an optic fiber having a distal end and a proximal end, said optic fiber extending through the control handle, a lumen in the catheter body and a lumen in the tip section, said distal end of the optic fiber being substantially flush with the distal end of the tip section; and means for deflecting the tip section by manipulation of the control handle.
Claim 2
Dependent Claim 60 words
A catheter according to claim 1 further comprising one or more electrodes carried by the tip section for mapping electrical activity of the heart tissue and one or more electrode lead wires electrically connected to each of the electrodes, said lead wires extending through a lumen in the tip section, a lumen in the catheter body and the control handle.
Claim 3
Dependent Claim 32 words
A catheter according to claim 2 comprising a tip electrode mounted at the distal end of the tip section, said tip electrode having a distal face and an optic fiber lumen therethrough.
Claim 4
Dependent Claim 21 words
A catheter according to claim 2 comprising one or more ring electrodes fixedly secured in surrounding relation to the tip section.
Claim 5
Dependent Claim 21 words
A catheter according to claim 3 comprising one or more ring electrodes fixedly secured in surrounding relation to the tip section.
Claim 6
Dependent Claim 26 words
A catheter according to claim 3 wherein the distal end of the optic fiber is fixedly secured within the optic fiber lumen of the tip electrode.
Claim 7
Dependent Claim 30 words
A catheter according to claim 1 wherein the circuit board is electrically attached to a cable, which is electrically attached to a computer for receiving signals from the circuit board.
Claim 8
Dependent Claim 58 words
A catheter according to claim 3 further comprising a tubular housing having distal and proximal ends, wherein the distal end of the tubular housing is fixedly attached to the proximal end of the tip electrode, wherein the proximal end of the tubular housing is fixedly attached to the distal end of the flexible tubing of the tip section.
Claim 9
Dependent Claim 14 words
A catheter according to claim 8 wherein the tubular housing is made of PEEK.
Claim 10
Dependent Claim 16 words
A catheter according to claim 1 wherein the catheter body has a single lumen extending therethrough.

References Cited (Backward Citations)

US4391199A Cited
US5380316A Cited
US5389096A Cited
US5554152A Cited
WO1993015676A1 Cited
US5500012A Cited
US5462544A Cited
WO1996041654A1 Cited

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