Patent US1708306A successfully refreshed from Google Patents.
EP0347098A2
Expired / Lapsed
EP
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Atherectomy system with a guide-wire
Assignee: SHIBER, SAMUEL
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Filing: 1989-06-07
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Granted: —
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Expires: 2009-06-07
Abstract
Abstract An atherectomy system for coring (10), ingesting and removing an obstruction material (12) from within a patient's vessel having a flexible guide-wire (140) defining voids for containing obstruction material and defining a diametrical envelope, a flexible rotary-catheter (21) slidable and rotatable over the diametrical envelope having a rotary coring means (22) at its distal end, a continuous passage defined around the flexible guide-wire by the flexible rotary-catheter for ingesting the cored obstruction material, and coupling means at the proximal end of the flexible rotary-catheter for coupling to rotating means.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
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; A61B8/00; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; F; F16; F16C; F16C1/00; F16C1/02; F16D; F16D7/00; F16D7/02; A61B2017/00535; A61B2017/00539; A61B2017/22038; A61B17/320068; A61B2017/320084; A61B90/00; A61B90/08; A61B2090/0801; A61B2090/08021; A61B90/36; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3784; A61B90/39; A61B2090/3933; A61B2217/00; A61B2217/002; A61B2217/005; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 55
Claim 1
Independent Claim
102 words
A atherectomy system for coring, ingesting and removing an obstruction material from within a patient's vessel, comprising in combination: a flexible guide-wire insertable into the vessel, a flexible rotary-catheter slidable over said flexible guide-wire, having a rotary coring means at its distal end, a continuous passage defined around said flexible guide-wire by said flexible rotary-catheter for ingesting the cored obstruction material, coupling means at a proximal end of said flexible rotary-catheter for coupling to rotating means, said flexible guide-wire having a diametrical envelope over which said flexible rotary-catheter is rotatably and slidably supported said envelope defining voids for containing the obstruction material.
Claim 2
Dependent Claim
102 words
A atherectomy system for coring, ingesting and removing an obstruction material from within a patient's vessel, comprising in combination: a flexible guide-wire insertable into the vessel, a flexible rotary-catheter slidable over said flexible guide-wire, having a rotary coring means at its distal end, a continuous passage defined around said flexible guide-wire by said flexible rotary-catheter for ingesting the cored obstruction material, coupling means at a proximal end of said flexible rotary-catheter for coupling to rotating means, said flexible guide-wire having a diametrical envelope over which said flexible rotary-catheter is rotatably and slidably supported said envelope defining voids for containing the obstruction material.
Claim 3
Dependent Claim
23 words
An atherectomy system as in claim 1, wherein said diametrical envelope concentrically aligns the flexible rotary-catheter with the flexible guide-wire and the artery.
Claim 4
Dependent Claim
40 words
An atherectomy system as in claim 1, wherein said flexible guide-wire's portion which is inserted into said vessel distally to said flexible rotary-catheter provides a lever arm to angularly align said flexible rotary-catheter with the flexible guide-wire and the artery.
Claim 5
Dependent Claim
22 words
An atherectomy system as in claim 1, wherein said flexible guide-wire comprises a flexible pilot wire and a flexible casing slidable thereon.
Claim 6
Dependent Claim
40 words
An atherectomy system as in claim 4, a portion of said flexible pilot wire which is inserted in said vessel distally to said casing provides a lever arm to angularly align said casing with the flexible pilot-wire and the artery.
Claim 7
Dependent Claim
19 words
An atherectomy system as in claim 1, wherein said diametrical envelope comprises at least one radially protruding elongate ridge.
Claim 8
Dependent Claim
14 words
An atherectomy system as in claim 6, wherein said elongated ridge is a helix.
Claim 9
Dependent Claim
19 words
An atherectomy system as in claim 6, wherein said protrusion of said elongated radially protruding ridge is selectively controlled.
Claim 10
Dependent Claim
23 words
An atherectomy system as in claim 8, wherein said envelope comprises an expandable tube with at least one elongated ridge on its periphery.
Claim 11
Dependent Claim
17 words
An atherectomy system as in claim 1, wherein said diametrical envelope comprises a radially protruding barrier means.
Claim 12
Dependent Claim
30 words
An atherectomy system as in claim 1, wherein suction is applied at said proximal end of said continuous passage to proximally pull the cored obstruction material in said continuous passage.
Claim 13
Dependent Claim
18 words
An atherectomy system as in claim 11, wherein said suction is formed by a positive displacement pump means.
Claim 14
Dependent Claim
25 words
An atherectomy system as in claim 1, wherein said flexible guide-wire comprises a tube for transmitting fluid from its proximal end to its distal end.
Claim 15
Dependent Claim
49 words
An atherectomy system as in claim 1, wherein said flexible guide-wire is equipped with an ultrasound transducer at its distal end and is connected to a base unit at its proximal end, said flexible guide-wire containing means for transmission of ultrasound energy between said transducer and said base unit.
Claim 16
Dependent Claim
50 words
A an atherectomy system as in claim 1, wherein said flexible guide-wire is equipped with a laser transducer at its distal end and is connected to a base unit at its proximal end, said flexible guide-wire containing means for transmission of laser energy between said transducer and said base unit.
Claim 17
Dependent Claim
106 words
Apparatus for removing an obstruction from a vessel with an atherectomy system comprising: a flexible guide-wire for insertion into a vessel, into an obstruction, and having a diametrical envelope which contains voids for accepting the obstruction material, rotary coring means located at a distal end of an atherectomy catheter for being advanced over the flexible guide-wire, means for advancing and rotating the rotary coring means into the obstruction and coring the obstruction while the rotary coring means is rotatably supported and aligned with an artery by the diametrical envelope, and means for permitting removal of the atherectomy system containing the obstruction material out of the vessel.
Claim 18
Dependent Claim
106 words
Apparatus for removing an obstruction from a vessel with an atherectomy system comprising: a flexible guide-wire for insertion into a vessel, into an obstruction, and having a diametrical envelope which contains voids for accepting the obstruction material, rotary coring means located at a distal end of an atherectomy catheter for being advanced over the flexible guide-wire, means for advancing and rotating the rotary coring means into the obstruction and coring the obstruction while the rotary coring means is rotatably supported and aligned with an artery by the diametrical envelope, and means for permitting removal of the atherectomy system containing the obstruction material out of the vessel.
Claim 19
Dependent Claim
19 words
Apparatus as in claim 16, including means for inserting said flexible guide wire into the vessel under ultrasound guidance.
Claim 20
Dependent Claim
18 words
Apparatus as in claim 16, including means for inserting said flexible guide-wire into the vessel under visual guidance.
Claim 21
Dependent Claim
27 words
Apparatus as in claim 16, including means for injecting through the distal end of said flexible guide-wire as it is inserted into the vessel under fluoroscopic guidance.
Claim 22
Dependent Claim
24 words
Apparatus as in claim 16, including means to apply suction to assist in enabling the cored obstruction material to move proximally in the passage.
Claim 23
Dependent Claim
17 words
A process as in claim 20, wherein said suction is provided by a positive displacement pump means.
Claim 24
Dependent Claim
140 words
An atherectomy system for coring, ingesting and removing an ostruction from 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 rotary coring means, at a distal end of said flexible rotary-catheter, for making a peripheral cut in an obstruction located in front of said rotary coring means, a rotating inner-wall formed by the inside surface of said rotary coring-means and said flexible rotary-catheter, a continuous passage defined around said flexible guide-wire by said rotating inner wall for ingesting the cored obstruction material, the relative motion between said inner-wall and said flexible guide-wire mechanically enabling the ingested obstruction material to move proximally in said continuous passage, coupling means at said proximal end of said flexible rotary-catheter for coupling to rotating means.
Claim 25
Dependent Claim
140 words
An atherectomy system for coring, ingesting and removing an ostruction from 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 rotary coring means, at a distal end of said flexible rotary-catheter, for making a peripheral cut in an obstruction located in front of said rotary coring means, a rotating inner-wall formed by the inside surface of said rotary coring-means and said flexible rotary-catheter, a continuous passage defined around said flexible guide-wire by said rotating inner wall for ingesting the cored obstruction material, the relative motion between said inner-wall and said flexible guide-wire mechanically enabling the ingested obstruction material to move proximally in said continuous passage, coupling means at said proximal end of said flexible rotary-catheter for coupling to rotating means.
Claim 26
Dependent Claim
35 words
An atherectomy system as in claim 22, wherein said rotating means comprise a hollow shaft which is adapted to couple to said coupling means, said hollow shaft being rotatable and slideable over said flexible guide-wire.
Claim 27
Dependent Claim
32 words
An atherectomy system as in claim 22 or 23, wherein suction is applied at said proximal end of said continuous passage to proximally pull the cored obstruction material in said continuous passage.
Claim 28
Dependent Claim
33 words
An atherectomy system as in claim 22, wherein a helical step formed on said rotating inner-wall mechanically acts on the cored obstruction material in said continuous passage, pushing it in a proximal direction.
Claim 29
Dependent Claim
44 words
An atherectomy system as in claim 25, wherein said flexible guide-wire has anti-rotational means to counter rotation of the obstruction material around said flexible guide-wire while said rotary coring means core the obstruction material and said helical step pushes the ingested obstruction material proximally.
Claim 30
Dependent Claim
19 words
An atherectomy system as in claim 26, wherein said anti-rotational means comprise at least one elongated radially protruding ridge.
Claim 31
Dependent Claim
19 words
An atherectomy system as in claim 27, wherein said protrusion of said elongated radially protruding ridge is selectively controlled.
Claim 32
Dependent Claim
23 words
An atherectomy system as in claim 28, wherein anti-rotational means comprise an expandable tube with at least one elongated ridge on its periphery.
Claim 33
Dependent Claim
16 words
An atherectomy system as in claim 1 or 22, said rotary coring means being a tubular-blade.
Claim 34
Dependent Claim
19 words
An atherectomy system as in claim 1 or 22, said rotary coring means being a variable diameter tubular blade.
Claim 35
Dependent Claim
17 words
An atherectomy system as in claim 1 or 22, said rotary coring means being a heated tubular-blade.
Claim 36
Dependent Claim
18 words
An atherectomy system as in claim 1 or 22, said rotary coring means being a radiation emitting device.
Claim 37
Dependent Claim
50 words
An atherectomy system as in claim 22, at least a part of said flexible guide-wire having distal barrier means, extending radially from said flexible guide-wire, to counter distal movement of surrounding obstruction material while said rotary coring means cores the obstruction material and said continuous passage ingests the obstruction material.
Claim 38
Dependent Claim
23 words
An atherectomy system as in claim 10 or 34, wherein said distal barrier means can elastically contract to pass through a narrowed lumen.
Claim 39
Dependent Claim
24 words
An atherectomy system as in claim 10 or 34, wherein said distal barrier means can be selectively contract to pass through a narrowed lumen.
Claim 40
Dependent Claim
33 words
An atherectomy system as in any preceding claim, wherein said flexible rotary-catheter has a higher torque carrying capacity in the vicinity of said proximal end than in the vicinity of said distal end.
Claim 41
Dependent Claim
27 words
An atherectomy system as in any preceding claim, wherein said flexible rotary-catheter has a torque limiting clutch between said proximal end section to said distal end section.
Claim 42
Dependent Claim
20 words
An atherectomy system as in any preceding claim having a flexible sleeve in which said flexible rotary-catheter is rotatably disposed.
Claim 43
Dependent Claim
23 words
An atherectomy system as in claim 39, said flexible sleeve having a biasing means for eccentrically biasing said flexible sleeve in the vessel.
Claim 44
Dependent Claim
24 words
An atherectomy system as in claim 40, said biasing means comprise an asymmetrical inflatable chamber formed at said distal end of said flexible sleeve.
Claim 45
Dependent Claim
26 words
An atherectomy system as in claim 40, said flexible sleeve having a tongue at its distal end for eccentrically biasing said flexible sleeve in the vessel.
Claim 46
Dependent Claim
12 words
An atherectomy system as in claim 42, said tongue being selectively actuatable.
Claim 47
Dependent Claim
21 words
An atherectomy system as in claim 39, wherein means for introducing fluids into the vessel are connected to said flexible sleeve.
Claim 48
Dependent Claim
15 words
An atherectomy system as in claim 22, wherein said flexible rotary-catheter comprises a helical member.
Claim 49
Dependent Claim
29 words
An atherectomy system as in claim 45, wherein said helical member has a helical surface which pushes the cored obstruction material in said continuous passage in a paroximal direction.
Claim 50
Dependent Claim
25 words
An atherectomy system as in claim 45, wherein said helical member is disposed in a diametrically restraining member in the form of a flexible tube.
Claim 51
Dependent Claim
26 words
An atherectomy system as in claim 45, wherein said flexible rotary-catheter is disposed in a diametrically restraining member in the form of a helically wound member.
Claim 52
Dependent Claim
99 words
Apparatus for removing an obstruction from an vessel with an atherectomy system, comprising: means for inserting into a vessel, into an ostruction, a flexible guide-wire, means for advancing over the flexible guide-wire a rotary coring means located at a distal end of an atherectomy catheter, means for advancing and rotating the rotary coring means to the obstruction and coring the obstruction, means for mechanically enabling the cored material to move proximally in a continuous passage defined between the atherectomy catheter and the flexible guide-wire, and means for removing the atherectomy system containing the ostruction material out of the vessel.
Claim 53
Dependent Claim
99 words
Apparatus for removing an obstruction from an vessel with an atherectomy system, comprising: means for inserting into a vessel, into an ostruction, a flexible guide-wire, means for advancing over the flexible guide-wire a rotary coring means located at a distal end of an atherectomy catheter, means for advancing and rotating the rotary coring means to the obstruction and coring the obstruction, means for mechanically enabling the cored material to move proximally in a continuous passage defined between the atherectomy catheter and the flexible guide-wire, and means for removing the atherectomy system containing the ostruction material out of the vessel.
Claim 54
Dependent Claim
51 words
Apparatus for mechanically drilling through an arterial ostruction, comprising: a mechanical atherectomy system for insertion means for advancing said mechanical atherectomy system through said obstruction so as to drill a lumen having an area in the range of one half to three quarters of the area of the unobstructed arterial lumen.
Claim 55
Dependent Claim
51 words
Apparatus for mechanically drilling through an arterial ostruction, comprising: a mechanical atherectomy system for insertion means for advancing said mechanical atherectomy system through said obstruction so as to drill a lumen having an area in the range of one half to three quarters of the area of the unobstructed arterial lumen.
References Cited (Backward Citations)
No citation records indexed.
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