Patent US3526567A successfully refreshed from Google Patents.
Patent US4732154A successfully refreshed from Google Patents.
US4732154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary catheter system
Assignee: Surgical Systems and Instruments Inc
•
Filing: 1986-06-16
•
Granted: 1988-03-22
•
Expires: 2006-06-16
Abstract
Abstract A rotary catheter system insertable into a patient's artery over a non rotating auger shaped guide-wire for remotely cutting and removing an obstruction therein, having a flexible catheter equipped with a tubular-blade at its front end and a motor connected to its other end.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/22; A61B17/22004; A61B17/22012; A61B17/320758; A61B17/320783; A61B18/00; A61B18/04; A61B18/08; A61B18/082; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; F; F16; F16C; F16C1/00; F16C1/02; F16D; F16D7/00; F16D7/02; A61B2017/320733; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A rotary catheter system insertable into a patient's artery for remotely cutting and removing an obstruction therein, comprising in combination: a flexible guide-wire insertable into a patient's artery, at least a portion of said flexible guide-wire being shaped as an auger, a rotary flexible-catheter with front and rear ends, said flexible-catheter being rotatably disposed and slidable over said flexible guide-wire, a tubular-blade mounted to said front end, said tubular-blade having a through hole communicating with said flexible-catheter for passing obstruction material through said hole and into said flexible-catheter, means connected to said rear end for rotating said flexible-catheter and said tubular-blade around said flexible guide-wire.
Claim 2
Dependent Claim
105 words
A rotary catheter system insertable into a patient's artery for remotely cutting and removing an obstruction therein, comprising in combination: a flexible guide-wire insertable into a patient's artery, at least a portion of said flexible guide-wire being shaped as an auger, a rotary flexible-catheter with front and rear ends, said flexible-catheter being rotatably disposed and slidable over said flexible guide-wire, a tubular-blade mounted to said front end, said tubular-blade having a through hole communicating with said flexible-catheter for passing obstruction material through said hole and into said flexible-catheter, means connected to said rear end for rotating said flexible-catheter and said tubular-blade around said flexible guide-wire.
Claim 3
Dependent Claim
27 words
A rotary catheter system as in claim 1, wherein a small longitudinal ridge is formed on at least a portion of an inner wall of said flexible-catheter.
Claim 4
Dependent Claim
30 words
A rotary catheter system as in claim 1, wherein said flexible-catheter has a larger diameter in the vicinity of said rear end than in the vicinity of said front end.
Claim 5
Dependent Claim
32 words
A rotary catheter system as in claim 1, wherein said flexible-catheter has a higher torque carrying capacity in the vicinity of said rear end than in the vicinity of said front end.
Claim 6
Dependent Claim
17 words
A rotary catheter system as in claim 1, wherein suction means are connected to said flexible catheter.
Claim 7
Dependent Claim
26 words
A rotary catheter system as in claim 1, having sleeve with a front opening and a rear opening, said flexible-catheter being rotatably disposed in said sleeve.
Claim 8
Dependent Claim
16 words
A rotary catheter system as in claim 6, said sleeve is longitudinally slidable over said flexible-catheter.
Claim 9
Dependent Claim
29 words
A rotary catheter system as in claim 7, said front opening is smaller in diameter than said tubular-blade to ease penetration of said rotary catheter system into the artery.
Claim 10
Dependent Claim
24 words
A rotary catheter system as in claim 7, wherein means for introducing fluids to the vicinity of said tubular-blade are connected to said sleeve.
References Cited (Backward Citations)
US1596754A
Cited
US2505358A
Cited
US3614953A
Cited
US4030503A
Cited
US4177797A
Cited
SU665908A1
Cited
DE2804015A1
Cited
GB2044103A
Cited
US4249541A
Cited
US4445509A
Cited
US4479497A
Cited
US4589412A
Cited
US4627436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |