EP0680730A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Rotary catheter for atherectomy system
Assignee: Individual
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Filing: 1990-03-15
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Granted: —
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Expires: 2010-03-15
Abstract
Abstract An atherectomy system (10) insertable into a human blood vessel (12) over a flexible guidewire (17) for remotely cutting and removing an obstruction (15) therein, having a diametrical stabilized torque transmitting flexible rotary catheter (19) equipped with a rotary coring means (22) at its distal end and a motor (24) connected to its proximal end.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
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; A61B2017/22051; A61B2017/22052; A61B90/00; A61B90/03; A61B2090/031; A61B2217/00; A61B2217/002; A61B2217/005; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/75; F16C2202/00; F16C2202/20; F16C2202/28; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
177 words
An atherectomy system (10) insertable into a human blood vessel (11) for coring and removing an obstruction therein, comprising: a flexible guidewire (17) insertable into said blood vessel (11); a flexible rotary catheter (19) having a continuous passage therethrough is rotatably disposed and slidable over said flexible guidewire (17), said flexible rotary catheter having proximal and distal ends (13,14); a rotary coring means (64) for cutting and ingesting obstruction material located at said distal end; a coupling means (25) for rotating said flexible rotary catheter (19) around said flexible guidewire (17) located at said proximal end; means for diametrically stabilizing and means (62) for transmitting torque in the form of closely spaced windings having distal and proximal edges (61'), said windings forming a skeleton of said flexible rotary catheter (19) and inclined plane means to assist in pulling the obstruction material into the catheter characterised in that the inclined plane means is provided by the proximal edges (61') of the closely spaced windings for contacting and assisting the obstruction material in moving proximally in the continuous passage.
Claim 2
Dependent Claim
21 words
An atherectomy system as claimed in claim 1, characterised in that the flexible rotary catheter is rotatably disposed in a sleeve.
Claim 3
Dependent Claim
19 words
An atherectomy system as claimed in any preceding claim characterised in that said flexible rotary catheter comprise a helix.
Claim 4
Dependent Claim
20 words
An atherectomy system as claimed in claim 3 characterised in that the helix is wound in the direction of rotation.
Claim 5
Dependent Claim
18 words
An atherectomy system as claimed in claim 4 characterised in that a diametrical restraining member restrains said helix.
Claim 6
Dependent Claim
24 words
An atherectomy system as claimed in claim 5 characterised in that said restraining member comprise an external helix wound in the counter rotation direction.
Claim 7
Dependent Claim
20 words
An atherectomy system as claimed in claim 5 or 6 characterised in that said restraining member comprise a plastic wall.
Claim 8
Dependent Claim
17 words
An atherectomy system as claimed in claim 7 characterised in that said wall contains diametrical restraining means.
References Cited (Backward Citations)
EP0358825A1
Cited
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