US5443443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy system
Assignee: Surgical Systems and Instruments Inc
•
Filing: 1993-08-17
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Granted: 1995-08-22
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Expires: 2013-08-17
Abstract
Abstract A system for removing an obstruction, in sections, from within a vessel, having a flexible guide wire assembly which is insertable into the vessel and a flexible rotary catheter which is slidable over it, the flexible rotary catheter is equipped with a tubular blade at its distal end for cutting and separating the obstruction material from an inner wall of the vessel to be ingested by the system.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
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; A61B2017/00681; A61B2017/00685; A61B2017/22051; A61B2017/22052; A61B17/320068; A61B2017/320084; A61B90/00; A61B90/03; A61B2090/031; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3784; A61B2217/00; A61B2217/002; A61B2217/005; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/75; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
98 words
A system for removing an obstruction, in sections, from within a vessel of a body, comprising in combination: a flexible guide wire insertable into the vessel, a flexible rotary catheter slidable over the flexible guide wire and having a tubular blade at its distal end for separating the obstruction from a wall of the vessel, the tubular blade being affixed to the flexible rotary catheter for rotating together with it, a passage, defined around the flexible guide wire by the flexible rotary catheter for accepting sections of the obstruction which was separated from the wall of the vessel.
Claim 2
Independent Claim
98 words
A system for removing an obstruction, in sections, from within a vessel of a body, comprising in combination: a flexible guide wire insertable into the vessel, a flexible rotary catheter slidable over the flexible guide wire and having a tubular blade at its distal end for separating the obstruction from a wall of the vessel, the tubular blade being affixed to the flexible rotary catheter for rotating together with it, a passage, defined around the flexible guide wire by the flexible rotary catheter for accepting sections of the obstruction which was separated from the wall of the vessel.
Claim 3
Dependent Claim
17 words
A system as in claim 1, the flexible rotary catheter is slidably disposed in a flexible sleeve.
Claim 4
Dependent Claim
25 words
A system as in claim 2, the flexible sleeve having a biasing means on its side for eccentrically biasing the flexible sleeve in the vessel.
Claim 5
Dependent Claim
13 words
A system as in claim 3, the biasing means comprising an inflatable chamber.
Claim 6
Dependent Claim
29 words
A system as in claim 3, the biasing means comprising a tongue at the distal end of the flexible sleeve for eccentrically biasing the flexible sleeve in the vessel.
Claim 7
Independent Claim
101 words
A system for removing an obstruction, in sections, from within a vessel of a body, comprising in combination: a flexible guide wire assembly insertable into the vessel, a flexible rotary catheter slidable over the flexible guide wire assembly and having a tubular blade at its distal end for separating the obstruction from a wall of the vessel, the tubular blade being affixed to the flexible rotary catheter for rotating together with it, a passage, defined around the flexible guide wire assembly by the flexible rotary catheter for accepting sections of the obstruction which was separated from the wall of the vessel.
Claim 8
Independent Claim
101 words
A system for removing an obstruction, in sections, from within a vessel of a body, comprising in combination: a flexible guide wire assembly insertable into the vessel, a flexible rotary catheter slidable over the flexible guide wire assembly and having a tubular blade at its distal end for separating the obstruction from a wall of the vessel, the tubular blade being affixed to the flexible rotary catheter for rotating together with it, a passage, defined around the flexible guide wire assembly by the flexible rotary catheter for accepting sections of the obstruction which was separated from the wall of the vessel.
Claim 9
Dependent Claim
22 words
A system as in claim 6, wherein the flexible guide wire assembly comprises a flexible guide wire surrounded by a flexible casing.
Claim 10
Dependent Claim
18 words
A system as in claim 7, wherein the flexible guide wire is slidable relative to the flexible casing.
Claim 11
Dependent Claim
14 words
A system as in claim 7, wherein the flexible casing comprises a helical wire.
Claim 12
Dependent Claim
18 words
An system as in claim 6, wherein the flexible rotary catheter is slidably disposed in a flexible sleeve.
Claim 13
Dependent Claim
26 words
A system as in claim 10, wherein the flexible sleeve having a biasing means on its side for eccentrically biasing the flexible sleeve in the vessel.
Claim 14
Dependent Claim
14 words
A system as in claim 11, wherein the biasing means comprises an inflatable chamber.
Claim 15
Dependent Claim
29 words
A system as in claim 11, the biasing means comprising a tongue at the distal end of the flexible sleeve for eccentrically biasing the flexible sleeve in the vessel.
Claim 16
Dependent Claim
93 words
A process for removing an obstruction from within a vessel comprising the following steps: inserting a flexible guide wire into the vessel and into the obstruction, inserting a catheter annularly over the flexible guide wire and into the vessel, wherein the catheter has a tubular blade at its distal end, advancing the catheter and the tubular blade over the obstruction and the flexible guide wire, thereby separating the obstruction from a wall of the vessel and ingesting it into the catheter through the tubular blade and, removing the separated obstruction from the vessel.
Claim 17
Dependent Claim
93 words
A process for removing an obstruction from within a vessel comprising the following steps: inserting a flexible guide wire into the vessel and into the obstruction, inserting a catheter annularly over the flexible guide wire and into the vessel, wherein the catheter has a tubular blade at its distal end, advancing the catheter and the tubular blade over the obstruction and the flexible guide wire, thereby separating the obstruction from a wall of the vessel and ingesting it into the catheter through the tubular blade and, removing the separated obstruction from the vessel.
Claim 18
Dependent Claim
104 words
A process for removing an obstruction from within a vessel comprising the following steps: inserting a flexible guide wire into a vessel and into an obstruction, inserting a flexible casing, over the flexible guide wire, and into the obstruction, inserting a catheter annularly over the flexible casing and into the vessel, wherein the catheter has a tubular blade at its distal end, and, advancing the catheter and tubular blade over the obstruction and the flexible casing, thereby separating the obstruction form a wall of the vessel and ingesting it into the catheter through the tubular blade, and, removing the separated obstruction from the vessel.
Claim 19
Dependent Claim
104 words
A process for removing an obstruction from within a vessel comprising the following steps: inserting a flexible guide wire into a vessel and into an obstruction, inserting a flexible casing, over the flexible guide wire, and into the obstruction, inserting a catheter annularly over the flexible casing and into the vessel, wherein the catheter has a tubular blade at its distal end, and, advancing the catheter and tubular blade over the obstruction and the flexible casing, thereby separating the obstruction form a wall of the vessel and ingesting it into the catheter through the tubular blade, and, removing the separated obstruction from the vessel.
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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) | 1998-08-21 | 1999-02-20 | 1999-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-21 | 2003-02-20 | 2003-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-21 | 2007-02-20 | 2007-08-22 | $7700.00 | Window Closed / Lapsed |