Patent US5443443A successfully refreshed from Google Patents.
US5443443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy system
Assignee: Surgical Systems and Instruments Inc
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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
2026-11-01 04:35
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.
References Cited (Backward Citations)
US2505358A
Cited
US3433226A
Cited
US3614953A
Cited
US3789841A
Cited
US4030503A
Cited
US4177797A
Cited
SU665908A1
Cited
DE2804015A1
Cited
GB2044103A
Cited
US4249541A
Cited
US4445509A
Cited
US4479497A
Cited
US4589412A
Cited
US4627436A
Cited
US5024651A
Cited
US4732154A
Cited
US4819634A
Cited
US4842579A
Cited
US4842579B1
Cited
US4886490A
Cited
US4894051A
Cited
US5135531A
Cited
US4979939A
Cited
US5002553A
Cited
US4669469A
Cited
US5041082A
Cited
US4883458A
Cited
US5007896A
Cited
US4957482A
Cited
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 |