US5002553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy system with a clutch
Assignee: Surgical Systems and Instruments Inc
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Filing: 1989-03-13
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Granted: 1991-03-26
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Expires: 2009-03-13
Abstract
Abstract An atherectomy system for cutting an obstruction in a patient's vessel, comprising a flexible guide-wire insertable into the vessel, a flexible rotary-catheter being rotatably disposed and insertable into the vessel, over the flexible guide-wire, a cutting means for cutting the obstruction, at a distal end of the flexible rotaty-catheter, coupling means at the proximal end of the flexible rotary-catheter for engaging a drive means and at least one torque limiting clutch interposed between the drive means and the cutting means, limiting the torque transmitted distally.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:38
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; A61B2017/22038; A61B90/00; A61B90/03; A61B2090/031; F16C2202/00; F16C2202/20; F16C2202/28; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
An atherectomy system for cutting an obstruction in a patient's vessel, comprising in combination: a flexible guide-wire insertable into the vessel, a flexible rotary-catheter being rotatably disposed and insertable into the vessel, over said flexible guide-wire, a cutting means, at a distal end of said flexible rotary-catheter, for cutting said obstruction, coupling means at the proximal end of said flexible rotary-catheter for engaging a drive means having a motor, wherein at least one torque limiting clutch is interposed between said motor and said cutting means, limiting the torque transmitted distally.
Claim 2
Dependent Claim
90 words
An atherectomy system for cutting an obstruction in a patient's vessel, comprising in combination: a flexible guide-wire insertable into the vessel, a flexible rotary-catheter being rotatably disposed and insertable into the vessel, over said flexible guide-wire, a cutting means, at a distal end of said flexible rotary-catheter, for cutting said obstruction, coupling means at the proximal end of said flexible rotary-catheter for engaging a drive means having a motor, wherein at least one torque limiting clutch is interposed between said motor and said cutting means, limiting the torque transmitted distally.
Claim 3
Dependent Claim
30 words
An atherectomy system as in claim 1, wherein said torque limiting clutch is interposed between a proximal section of said flexible rotary-catheter to a distsal section of said flexible rotary-catheter.
Claim 4
Dependent Claim
46 words
An atherectomy system as in claim 1, wherein said drive means have a hollow shaft through which said guide-wire can pass and extend, a distal end of said hollow shaft engagable with said coupling means, a motor coupled to said hollow shaft through torque limiting clutch.
References Cited (Backward Citations)
US4728319A
Cited
US4883458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |