US6235042B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy device
Assignee: Arteria Medical Science LLC
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Filing: 1999-11-22
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Granted: 2001-05-22
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Expires: 2019-11-22
Abstract
Abstract An atherectomy device is provided wherein a catheter has a cutting region including plurality of slotted tubular members interconnected by flexible segments. Each slotted tubular member includes cutting edges that sever occlusive material from the interior of a vessel when the cutting region is rotated. The flexible segments may be formed by cutting windows in a tapered hollow tubular member, or may comprise bellows-shaped tubes or helical coils, or may comprise one or more tubular segments and may include a lumen that allows suction to be drawn through the device, or to permit the delivery of contrast agents, dyes, fluids or drugs to the operative site. A guide catheter also may be provided for positioning the cutting region of the atherectomy device at the operative site.
Inventors
- 👤 Youval Katzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/320783; A61B17/28; A61B17/29; A61B2017/2901; A61B2017/2905; A61B2017/320733
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
159 words
An atherectomy device comprising: a drive cable; a tubular member having a first and second hinge portions on each end of the tubular member, a portion defining a slot between the first and second hinge portions, and a cutting edge disposed along the slot, wherein the slot is less than the full radial circumference of the tubular member; and a plurality of tubular segments, each tubular segment comprising a first portion that has a first hinge portion and a second portion that has a second hinge portion, wherein the tubular member and the tubular segments are flexibly connected together at the hinge portions to form a chain that is coupled to the drive cable, a first tubular segment being coupled to the first hinge portion of the tubular member and a second tubular segment coupled to the second hinge portion of the tubular member, the chain being movable relative to the drive cable without exerting a bending force therebetween.
Claim 2
Dependent Claim
159 words
An atherectomy device comprising: a drive cable; a tubular member having a first and second hinge portions on each end of the tubular member, a portion defining a slot between the first and second hinge portions, and a cutting edge disposed along the slot, wherein the slot is less than the full radial circumference of the tubular member; and a plurality of tubular segments, each tubular segment comprising a first portion that has a first hinge portion and a second portion that has a second hinge portion, wherein the tubular member and the tubular segments are flexibly connected together at the hinge portions to form a chain that is coupled to the drive cable, a first tubular segment being coupled to the first hinge portion of the tubular member and a second tubular segment coupled to the second hinge portion of the tubular member, the chain being movable relative to the drive cable without exerting a bending force therebetween.
Claim 3
Dependent Claim
38 words
The atherectomy device of claim 1 , wherein the first portion of the first tubular segment has a first diameter and the second portion of the second tubular segment has a second diameter different from the first diameter.
Claim 4
Dependent Claim
17 words
The atherectomy device of claim 2 , wherein the first diameter is larger than the second diameter.
Claim 5
Dependent Claim
17 words
The atherectomy device of claim 2 , wherein the first diameter is smaller than the second diameter.
Claim 6
Dependent Claim
17 words
The atherectomy device of claim 1 , wherein the tubular member further comprises a tapered exterior surface.
Claim 7
Dependent Claim
35 words
The atherectomy device of claim 1 further comprising a guide catheter having a lumen and a distal end, wherein the drive cable is disposed in the lumen and the link extends beyond the distal end.
Claim 8
Dependent Claim
24 words
The atherectomy device of claim 1 further comprising a lumen configured for aspirating occlusive material severed by the cutting edges of the tubular member.
Claim 9
Dependent Claim
20 words
The atherectomy device of claim 1 further comprising a lumen configured for injecting a contrast agent, dye, fluid or drug.
Claim 10
Dependent Claim
27 words
The atherectomy device of claim 1 wherein the tubular member has an exterior diameter and the cutting edge of the tubular member extends beyond the exterior diameter.
Claim 11
Dependent Claim
19 words
The atherectomy device of claim 1 wherein the drive cable is configured to transmit rotational motion to the chain.
Claim 12
Dependent Claim
19 words
The atherectomy device of claim 1 wherein the drive cable is configured to transmit reciprocatory motion to the chain.
Claim 13
Dependent Claim
135 words
An atherectomy device comprising: a drive cable; a plurality of tubular members, each having a first and second hinge portions on each end of the tubular members, a portion defining a slot between the first and second hinge portions, and a cutting edge disposed along the slot, wherein the slot is less than the full radial circumference of the tubular member; and a plurality of tubular segments, each of the segments including a first portion having a first hinge portion and a second portion having a second hinge portion, wherein the tubular members and the tubular segments are flexibly connected together at the hinge portions to form a chain, the chain being cooperatively coupled to the drive cable to transmit torque between the drive cable and the tubular members without exerting a bending force therebetween.
Claim 14
Dependent Claim
135 words
An atherectomy device comprising: a drive cable; a plurality of tubular members, each having a first and second hinge portions on each end of the tubular members, a portion defining a slot between the first and second hinge portions, and a cutting edge disposed along the slot, wherein the slot is less than the full radial circumference of the tubular member; and a plurality of tubular segments, each of the segments including a first portion having a first hinge portion and a second portion having a second hinge portion, wherein the tubular members and the tubular segments are flexibly connected together at the hinge portions to form a chain, the chain being cooperatively coupled to the drive cable to transmit torque between the drive cable and the tubular members without exerting a bending force therebetween.
Claim 15
Dependent Claim
36 words
The atherectomy device of claim 12 , wherein the first portion of the tubular segments has a first diameter and the second portion of the tubular segments has a second diameter different from the first diameter.
Claim 16
Dependent Claim
16 words
The atherectomy device of claim 13 wherein the first diameter is larger than the second diameter.
Claim 17
Dependent Claim
17 words
The atherectomy device of claim 13 , wherein the first diameter is smaller than the second diameter.
Claim 18
Dependent Claim
21 words
The atherectomy device of claim 12 , wherein a first one of the tubular members further comprises a tapered exterior surface.
Claim 19
Dependent Claim
27 words
The atherectomy device of claim 12 further comprising a guide catheter having a lumen and a distal end, wherein the drive cable is disposed in the lumen.
Claim 20
Dependent Claim
24 words
The atherectomy device of claim 12 further comprising a lumen configured for aspirating occlusive material severed by the cutting edges of the tubular members.
Claim 21
Dependent Claim
20 words
The atherectomy device of claim 12 further comprising a lumen configured for injecting a contrast agent, dye, fluid or drug.
Claim 22
Dependent Claim
31 words
The atherectomy device of claim 12 wherein at least one of the tubular members has an exterior surface and the cutting edge of the tubular member extends beyond the exterior surface.
Claim 23
Dependent Claim
19 words
The atherectomy device of claim 12 wherein the drive cable is configured to transmit rotational motion to the chain.
Claim 24
Dependent Claim
19 words
The atherectomy device of claim 12 wherein the drive cable is configured to transmit reciprocatory motion to the chain.
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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) | 2004-05-21 | 2004-11-20 | 2005-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-21 | 2008-11-20 | 2009-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-21 | 2012-11-20 | 2013-05-22 | $7700.00 | Window Closed / Lapsed |