Patent US4927412A successfully refreshed from Google Patents.
US4927412A
Expired / Lapsed
US
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Coronary sinus catheter
Assignee: Alsius Corp
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Filing: 1988-12-08
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Granted: 1990-05-22
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Expires: 2008-12-08
Abstract
Abstract A coronary sinus catheter having a flexible elongate member with proximal and distal extremities. The flexible elongate member has at least two lumens extending longitudinally thereof. A balloon is mounted on the distal extremity of the flexible elongate member and has its interior in communication with one of the lumens. The balloon has at least one truncated conical surface with outwardly facing spaced apart parallel concentric lands formed thereon for frictionally engaging the coronary sinus to provide a high retentive force for the catheter.
Inventors
- 👤 Philippe Menasche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:38
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1002
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
In a coronary sinus catheter, a flexible elongate member having proximal and distal extremities, the flexible elongate member having at least two lumens extending longitudinally thereof, a balloon mounted on the distal extremity of the flexible elongate member and having its interior in communication with one of the lumens, the balloon having at least one truncated conical surface having outwardly facing spaced apart parallel concentric lands formed thereon for frictionally engaging the coronary sinus to provide a high retentive force for the catheter.
Claim 2
Dependent Claim
83 words
In a coronary sinus catheter, a flexible elongate member having proximal and distal extremities, the flexible elongate member having at least two lumens extending longitudinally thereof, a balloon mounted on the distal extremity of the flexible elongate member and having its interior in communication with one of the lumens, the balloon having at least one truncated conical surface having outwardly facing spaced apart parallel concentric lands formed thereon for frictionally engaging the coronary sinus to provide a high retentive force for the catheter.
Claim 3
Dependent Claim
28 words
A catheter as in claim 1 in which the truncated conical portion has an imaginary apex which faces away from the distal extremity of the flexible elongate member.
Claim 4
Dependent Claim
27 words
A catheter as in claim 1 in which the truncated conical portion has an imaginary apex which faces towards the distal extremity of the flexible elongate member.
Claim 5
Dependent Claim
23 words
A catheter as in claim 1 wherein the balloon is provided with a radially extending portion which adjoins the first named conical surface.
Claim 6
Dependent Claim
15 words
A catheter as in claim 1 wherein said balloon is formed of a silicone rubber.
Claim 7
Dependent Claim
35 words
A catheter as in claim 1 wherein said balloon has a wall thickness of approximately 0.03 inches and wherein said lands are generally hemispherical in cross section and have a radius of approximately 0.015 inches.
Claim 8
Dependent Claim
15 words
A catheter as in claim 7 wherein said lands are spaced apart approximately 0.050 inches.
Claim 9
Dependent Claim
110 words
In a coronary sinus catheter, a flexible elongate member having proximal and distal extremities, the flexible elongate member having at least two lumens extending longitudinally thereof, a balloon mounted on the distal extremity of the flexible elongate member and having its interior in communication with one of the lumens, the balloon having at least one truncated conical surface having outwardly facing spaced apart parallel concentric lands formed thereon for frictionally engaging the coronary sinus to provide a high retentive force for the catheter, said balloon being provided with a second truncated conical surface adjoining the first named conical surface and having outwardly facing spaced apart parallel concentric lands formed thereon.
Claim 10
Dependent Claim
110 words
In a coronary sinus catheter, a flexible elongate member having proximal and distal extremities, the flexible elongate member having at least two lumens extending longitudinally thereof, a balloon mounted on the distal extremity of the flexible elongate member and having its interior in communication with one of the lumens, the balloon having at least one truncated conical surface having outwardly facing spaced apart parallel concentric lands formed thereon for frictionally engaging the coronary sinus to provide a high retentive force for the catheter, said balloon being provided with a second truncated conical surface adjoining the first named conical surface and having outwardly facing spaced apart parallel concentric lands formed thereon.
References Cited (Backward Citations)
US4689041A
Cited
US4721109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |