EP0176865A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Steerable soft-tip catheter and method of using same
Assignee: Medtronic Versaflex Inc
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Filing: 1985-09-17
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Granted: —
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Expires: 2005-09-17
Abstract
Abstract This invention relates to steerable catheters. More particularly, this invention relates to steerable soft-tip catheters comprising an outer flexible catheter shell (2) having distal (7) and proximal ends; an inner flexible catheter (3) having distal (6) and proximal ends and two or more lumens, one of said lumens being closed at its distal end, the one or more other lumens being patent, i.e., open, for introduction of a central guide wire (8) or other desired object, the inner catheter (3) extending through the outer catheter shell (2), and the distal end (6) of the inner catheter protruding beyond the distal end (7) of the outer catheter shell (2); a steering wire (4) having distal and proximal (15) ends and extending the length of the inner catheter (3) through the lumen having the closed end, the distal end of the wire (4) being embedded in said closed end; and control means (5) attached to the proximal ends of the catheter shell (2) and the inner catheter (3), the proximal end (15) of the steering wire (4) extending through the control means (5) and the control means (5) having a torque means (16) which fixedly engages said steering wire (4), and a method of using same.
Inventors
- 👤 Maurice Buchbinder
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09016; A61M25/09033; A61M25/09025; A61B; A61B17/00; A61B17/22; A61B2017/22001; A61M25/06; A61M25/0662; A61M2025/0681
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
164 words
A steerable catheter means comprising: an outer flexible catheter shell having distal and proximal ends, an inner flexible catheter having distal and proximal ends and two or more lumens extending therethrough, one of said lumens being closed at its distal end, the one or more other lumens being open for introduction of a central guide wire or other desired object, the inner catheter extending through the outer catheter shell, and the distal end of the inner catheter protruding beyond the distal end of the outer catheter shell, a steering wire having distal and proximal ends and extending the length of the inner catheter through the lumen having the closed end, the distal end of the wire being embedded in said closed end, and control means attached to the proximal ends of the catheter shell and the inner catheter, the proximal end of the steering wire extending through the control means and the control means having a torque means which fixedly engages said steering wire.
Claim 2
Dependent Claim
164 words
A steerable catheter means comprising: an outer flexible catheter shell having distal and proximal ends, an inner flexible catheter having distal and proximal ends and two or more lumens extending therethrough, one of said lumens being closed at its distal end, the one or more other lumens being open for introduction of a central guide wire or other desired object, the inner catheter extending through the outer catheter shell, and the distal end of the inner catheter protruding beyond the distal end of the outer catheter shell, a steering wire having distal and proximal ends and extending the length of the inner catheter through the lumen having the closed end, the distal end of the wire being embedded in said closed end, and control means attached to the proximal ends of the catheter shell and the inner catheter, the proximal end of the steering wire extending through the control means and the control means having a torque means which fixedly engages said steering wire.
Claim 3
Dependent Claim
105 words
A steerable catheter means comprising: a flexible catheter having distal and proximal ends and one or more lumens extending therethrough, at least one of said lumens being closed at its distal end, a steering wire having distal and proximal ends and extending the length of a lumen having a closed end, the distal end of the wire being embedded in said closed end, and control means attached to the proximal end of the catheter, the proximal end of the steering wire extending through the control means and the control means having a torque means which fixedly engages said steering wire in push-pull and rotational manner.
Claim 4
Dependent Claim
105 words
A steerable catheter means comprising: a flexible catheter having distal and proximal ends and one or more lumens extending therethrough, at least one of said lumens being closed at its distal end, a steering wire having distal and proximal ends and extending the length of a lumen having a closed end, the distal end of the wire being embedded in said closed end, and control means attached to the proximal end of the catheter, the proximal end of the steering wire extending through the control means and the control means having a torque means which fixedly engages said steering wire in push-pull and rotational manner.
Claim 5
Dependent Claim
16 words
The steerable catheter means of Claim 2, wherein said catheter comprises from 1 to 3 lumens.
Claim 6
Dependent Claim
13 words
The steerable catheter means of Claim 3, wherein said catheter comprises two lumens.
Claim 7
Dependent Claim
13 words
The steerable catheter means of Claim 3, wherein said catheter comprises one lumen.
Claim 8
Dependent Claim
22 words
The steerable catheter means of Claim 2, wherein the catheter has at least two lumens and one of said lumens is open.
Claim 9
Dependent Claim
21 words
The steerable catheter means of Claim 6, wherein the open lumen is capable of having a balloon dilatation catheter threaded therethrough.
Claim 10
Dependent Claim
21 words
The steerable catheter means of Claim 6, wherein the open Lumen is capable of having a retractable pressure sensor threaded therethrough.
Claim 11
Dependent Claim
23 words
The steerable catheter means of Claim 2, wherein the outer surface of the catheter near the distal portion thereof comprises dilatation balloon means.
Claim 12
Dependent Claim
30 words
The steerable catheter means of Claim 9, wherein a closed lumen has openings near its distal end and said openings are arranged to permit inflation of said dilatation balloon means.
Claim 13
Dependent Claim
48 words
The steerable catheter means of Claim 2, wherein a closed lumen has a pressure sensing fiber therein, said pressure sensing fiber having distal and proximal ends and the distal end of said pressure sensing fiber extending through the distal end of the catheter to the outer surface thereof.
Claim 14
Dependent Claim
33 words
The steerable catheter means of Claim 2, wherein a flexible tip has proximal and distal ends and the proximal end thereof is affixed or embedded in the distal end of the catheter means.
Claim 15
Dependent Claim
20 words
The steerable catheter means of Claim 12, wherein the flexible tip is a floppy wire comprised of spring steel wire.
Claim 16
Dependent Claim
22 words
A method of introducing an object into the body which comprises using a catheter means of Claim 1 to position said object.
Claim 17
Dependent Claim
88 words
A method of introducing an object into the body of a warm-blooded patient which comprises the steps of: (a) inserting a guiding catheter into an opening in the patient; (b) inserting a steerable catheter means of Claim 1 into said guiding catheter until the distal end of said steerable catheter means protrudes from the distal end of the guiding catheter; (c) advancing the steerable catheter means to a desired position by steering said steerable catheter means through anatomical channels; and (d) delivering the object at the desired position.
Claim 18
Dependent Claim
22 words
A method of introducing an object into the body which comprises using a catheter means of Claim 2 to position said object.
Claim 19
Dependent Claim
88 words
A method of introducing an object into the body of a warm-blooded patient which comprises the steps of: (a) inserting a guiding catheter into an opening in the patient; (b) inserting a steerable catheter means of Claim 2 into said guiding catheter until the distal end of said steerable catheter means protrudes from the distal end of the guiding catheter; (c) advancing the steerable catheter means to a desired position by steering said steerable catheter means through anatomical channels; and (d) delivering the object at the desired position.
Claim 20
Dependent Claim
81 words
A method of positioning a catheter means in the body of a warm-blooded patient which comprises the steps of: (a) inserting a guiding catheter into an opening in the patient; (b) inserting a steerable catheter means of Claim 2 into said guiding catheter until the distal end of said steerable catheter means protrudes from the distal end of the guiding catheter; and (c) advancing the steerable catheter means to a desired position by steering said steerable catheter means through anatomical channels.
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