Patent US4795438A successfully refreshed from Google Patents.
US5114414A
Expired / Lapsed
US
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Low profile steerable catheter
Assignee: Medtronic Inc
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Filing: 1990-10-01
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Granted: 1992-05-19
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Expires: 2010-10-01
Abstract
Abstract This invention relates to steerable catheters. More particularly, this invention relates to a steerable catheter comprising a flexible catheter member having distal and proximal ends and one or more lumens, the single lumen or one of the 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; a deflection wire having distal and proximal ends and axially extending the length of the catheter member through the lumen having the closed end, the distal end of the deflection wire being embedded in the closed end; and control means attached to the proximal end of the catheter member, the proximal end of the deflection wire extending to the control means and the control means having an engaging means which fixedly engages the deflection wire.
Inventors
- 👤 Maurice Buchbinder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:20
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09016; A61M25/09025; A61M25/09033; A61B; A61B17/00; A61B17/22; A61B2017/22001; A61M25/06; A61M25/0662; A61M2025/0681
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
178 words
A steerable catheter means consisting essentially of: a flexible catheter having distal and proximal ends and two lumens extending therethrough, each of said lumens being closed at its distal end, a deflection wire having distal and proximal ends and axially extending the length of the inner catheter through a lumen having a closed end, the distal end of the deflection wire being embedded in said closed end, and control means attached to the proximal end of said catheter member, the proximal end of said deflection wire extending to said control means, said control means having engaging means which fixedly engages the proximal end of said deflection wire to cause said deflection wire to be displaced distally or proximally, said displacement causing the distal end of said catheter member to bend out of or toward the line of the longitudinal axis of said catheter member, and said control means having rotation means to cause said deflection wire and said catheter member to rotate together to cause the distal end of said catheter member to rotate about its longitudinal axis.
Claim 2
Dependent Claim
178 words
A steerable catheter means consisting essentially of: a flexible catheter having distal and proximal ends and two lumens extending therethrough, each of said lumens being closed at its distal end, a deflection wire having distal and proximal ends and axially extending the length of the inner catheter through a lumen having a closed end, the distal end of the deflection wire being embedded in said closed end, and control means attached to the proximal end of said catheter member, the proximal end of said deflection wire extending to said control means, said control means having engaging means which fixedly engages the proximal end of said deflection wire to cause said deflection wire to be displaced distally or proximally, said displacement causing the distal end of said catheter member to bend out of or toward the line of the longitudinal axis of said catheter member, and said control means having rotation means to cause said deflection wire and said catheter member to rotate together to cause the distal end of said catheter member to rotate about its longitudinal axis.
Claim 3
Dependent Claim
175 words
A steerable catheter means consisting essentially of: a. a flexible catheter member having distal and proximal ends and one lumen extending therethrough, wherein said lumen being closed at its distal end; b. a deflection wire having distal and proximal ends and axially extending through a lumen having a closed end, the distal end of said deflection wire being embedded in said closed end; and, c. control means attached to the proximal end of said catheter member, the proximal end of said deflection wire extending to said control means, said control means having engaging means which fixedly engages the proximal end of said deflection wire to cause said deflection wire to be displaced distally or proximally, said displacement causing the distal end of said catheter member to bend out of or toward the line of the longitudinal axis of said catheter member, and said control means having rotation means to cause said deflection wire and said catheter member to rotate together to cause the distal end of said catheter member to rotate about its longitudinal axis.
Claim 4
Dependent Claim
175 words
A steerable catheter means consisting essentially of: a. a flexible catheter member having distal and proximal ends and one lumen extending therethrough, wherein said lumen being closed at its distal end; b. a deflection wire having distal and proximal ends and axially extending through a lumen having a closed end, the distal end of said deflection wire being embedded in said closed end; and, c. control means attached to the proximal end of said catheter member, the proximal end of said deflection wire extending to said control means, said control means having engaging means which fixedly engages the proximal end of said deflection wire to cause said deflection wire to be displaced distally or proximally, said displacement causing the distal end of said catheter member to bend out of or toward the line of the longitudinal axis of said catheter member, and said control means having rotation means to cause said deflection wire and said catheter member to rotate together to cause the distal end of said catheter member to rotate about its longitudinal axis.
Claim 5
Dependent Claim
162 words
A steerable catheter means comprising: a flexible catheter member having distal and proximal ends and a single lumen closed at its distal end, a deflection wire having distal and proximal ends and extending the length of the catheter member through said lumen, the distal end of the wire being embedded in said closed end, and control means attached to the proximal end of the catheter member, the proximal end of the deflection wire extending to the control means, the control means having engaging means which fixedly engages the proximal end of said deflection wire to cause said deflection wire to be displaced distally or proximally, said displacement causing the distal end of the catheter member to bend out of or toward the line of its longitudinal axis, and the control means having rotation means to cause said deflection wire and the catheter member to rotate substantially together to cause the distal end of the catheter member to rotate about its longitudinal axis.
Claim 6
Dependent Claim
162 words
A steerable catheter means comprising: a flexible catheter member having distal and proximal ends and a single lumen closed at its distal end, a deflection wire having distal and proximal ends and extending the length of the catheter member through said lumen, the distal end of the wire being embedded in said closed end, and control means attached to the proximal end of the catheter member, the proximal end of the deflection wire extending to the control means, the control means having engaging means which fixedly engages the proximal end of said deflection wire to cause said deflection wire to be displaced distally or proximally, said displacement causing the distal end of the catheter member to bend out of or toward the line of its longitudinal axis, and the control means having rotation means to cause said deflection wire and the catheter member to rotate substantially together to cause the distal end of the catheter member to rotate about its longitudinal axis.
Claim 7
Dependent Claim
50 words
The steerable catheter means of claim 3, wherein the closed lumen has a pressure sensing fiber extending 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 member to the outer surface thereof.
Claim 8
Dependent Claim
26 words
The steerable catheter means of claim 3, which comprises dilatation balloon means arranged on the outer surface of the catheter member adjacent the distal portion thereof.
Claim 9
Dependent Claim
29 words
The steerable catheter means of claim 5, wherein the lumen has openings near its distal end and said openings are arranged to permit inflation of said dilatation balloon means.
Claim 10
Dependent Claim
38 words
The steerable catheter means of claim 3, wherein a flexible tip member has proximal and distal ends and the proximal end thereof is affixed to or embedded in the distal end of the catheter member in longitudinal direction.
Claim 11
Dependent Claim
21 words
The steerable catheter means of claim 7, wherein the flexible tip member is a floppy wire comprised of spring steel wire.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |