Patent US2066943A successfully refreshed from Google Patents.
EP0353087A2
Expired / Lapsed
EP
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Atherectomy device
Assignee: SHIBER, SAMUEL
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Filing: 1989-07-28
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Granted: —
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Expires: 2009-07-28
Abstract
Abstract An atherectomy system (10) for cutting, ingesting and removing an obstruction (12) from within a patient's artery (11), comprising a flexible guide-wire (25) insertable into the artery, a flexible rotary-catheter (13) rotatably disposed and slidable over the flexible guide-wire, a blade (16) forming a distal end of the flexible rotary- catheter having teeth (18) on its periphery which are bent inward, a continuous passage (23) for ingesting the cut obstruction material (12') between the flexible rotary- catheter and the flexible guide-wire, means (19) at the proximal end of the flexible rotary-catheter for rotating it and positive displacement pump means (17) connected to the continuous passage to pull the cut obstruction material proximally.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 01:42
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; A61B90/36; A61B90/361; A61B2090/3614; A61B2217/00; A61B2217/002; A61B2217/005; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/75; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
103 words
An atherectomy system for cutting, ingesting and removing an obstruction from within a patient's artery, comprising in combination: a flexible guide-wire insertable into said artery, a flexible rotary-catheter being rotatably disposed and slidable over said flexible guide-wire, a blade forming a distal end of said flexible rotary-catheter having at least one tooth on its periphery which is bent inward, a continuous passage surrounding said flexible guide-wire for ingesting the cut obstruction material, said continuous passage being defined between said flexible rotary-catheter and said flexible guide-wire, and coupling means at said proximal end of said flexible rotary-catheter for coupling it to a rotating means.
Claim 2
Dependent Claim
103 words
An atherectomy system for cutting, ingesting and removing an obstruction from within a patient's artery, comprising in combination: a flexible guide-wire insertable into said artery, a flexible rotary-catheter being rotatably disposed and slidable over said flexible guide-wire, a blade forming a distal end of said flexible rotary-catheter having at least one tooth on its periphery which is bent inward, a continuous passage surrounding said flexible guide-wire for ingesting the cut obstruction material, said continuous passage being defined between said flexible rotary-catheter and said flexible guide-wire, and coupling means at said proximal end of said flexible rotary-catheter for coupling it to a rotating means.
Claim 3
Dependent Claim
24 words
An atherectomy system as claimed in claim 1 wherein suction means is connected to said continuous passage to pull said cut obstruction material proximally.
Claim 4
Dependent Claim
19 words
An atherectomy system as claimed in claim 2 wherein said suction is provided by a positive displacement pump means.
Claim 5
Dependent Claim
38 words
An atherectomy system as claimed in any preceding claim wherein said flexible rotary-catheter has an increased wall thickness and increased torque carrying capacity at the vicinity of its proximal end compared with the same at its distal end.
Claim 6
Dependent Claim
21 words
An atherectomy system as claimed in any preceding claim wherein said flexible rotary-catheter has a wall reinforced with a spiral member.
Claim 7
Dependent Claim
16 words
An atherectomy system as claimed in claim 5 wherein said spiral member is made of metal.
Claim 8
Dependent Claim
19 words
An atherectomy system as claimed in claim 5 wherein said spiral member is made of a flat metal ribbon.
Claim 9
Dependent Claim
32 words
An atherectomy system as claimed in any preceding claim wherein said flexible guide-wire having distal barrier means to counter distal movement of surrounding obstruction material while said blade cuts the obstruction material.
Claim 10
Dependent Claim
17 words
An atherectomy system as claimed in any preceding claim wherein said flexible guide-wire contains an optical fibre.
References Cited (Backward Citations)
No citation records indexed.
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