Patent US6019772A successfully refreshed from Google Patents.
US6019772A
Expired / Lapsed
US
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Atherectomy device
Assignee: STENTVENT LLC
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Filing: 1998-09-21
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Granted: 2000-02-01
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Expires: 2018-09-21
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, and may be coated with a flexible material allowing 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
- 👤 Adi Shefaram
- 👤 Youval Katzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
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: 28
Claim 1
Independent Claim
105 words
An atherectomy device comprising: a drive cable; a tip; first and second tubular members, each one of the first and second tubular members integrally formed from a single-piece tube and having a portion defining a slot and a cutting edge disposed along the slot; and a plurality of flexible segments, a first one of the plurality of flexible segments coupled between the first tubular member and the drive cable, a second one of the plurality of flexible segments coupled between the first and second tubular members, and a third one of the plurality of flexible segments coupled between the second tubular member and the tip.
Claim 2
Dependent Claim
105 words
An atherectomy device comprising: a drive cable; a tip; first and second tubular members, each one of the first and second tubular members integrally formed from a single-piece tube and having a portion defining a slot and a cutting edge disposed along the slot; and a plurality of flexible segments, a first one of the plurality of flexible segments coupled between the first tubular member and the drive cable, a second one of the plurality of flexible segments coupled between the first and second tubular members, and a third one of the plurality of flexible segments coupled between the second tubular member and the tip.
Claim 3
Dependent Claim
26 words
The atherectomy device of claim 1 wherein the first and second tubular members and plurality of flexible segments are integrally formed from a single-piece hollow tube.
Claim 4
Dependent Claim
21 words
The atherectomy device of claim 1 wherein each one of the plurality of flexible segments is tapered in a longitudinal direction.
Claim 5
Dependent Claim
19 words
The atherectomy device of claim 1 wherein the first and second tubular members are tapered in a longitudinal direction.
Claim 6
Dependent Claim
17 words
The atherectomy device of claim 1 further comprising a cover disposed on the plurality of flexible segments.
Claim 7
Dependent Claim
14 words
The atherectomy device of claim 5 wherein the cover further comprises a lubricious material.
Claim 8
Dependent Claim
25 words
The atherectomy device of claim 1 wherein each one of the plurality of flexible segments further comprises at least two hoop portions interconnected by cross-members.
Claim 9
Dependent Claim
37 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 first flexible segment extends beyond the distal end.
Claim 10
Dependent Claim
27 words
The atherectomy device of claim 1 further comprising a lumen configured for aspirating occlusive material severed by the cutting edges of the first and second tubular members.
Claim 11
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 12
Dependent Claim
29 words
The atherectomy device of claim 1 wherein the first tubular member has an exterior diameter and the cutting edge of the first tubular member extends beyond the exterior diameter.
Claim 13
Dependent Claim
25 words
The atherectomy device of claim 1 wherein the cable is configured to transmit rotational motion to the first one of the plurality of flexible segments.
Claim 14
Dependent Claim
25 words
The atherectomy device of claim 1 wherein the cable is configured to transmit reciprocatory motion to the first one of the plurality of flexible segments.
Claim 15
Dependent Claim
94 words
An atherectomy device comprising: a drive cable; a first tubular member integrally formed from a first portion of hollow tube and having a portion defining a first slot and a first cutting edge disposed along the first slot; a first flexible segment connecting the first tubular member to the drive cable; a second tubular member integrally formed from a second portion of hollow tube and having a portion defining a second slot and a second cutting edge disposed along the second slot; and a second flexible segment connecting the first and second tubular members.
Claim 16
Dependent Claim
94 words
An atherectomy device comprising: a drive cable; a first tubular member integrally formed from a first portion of hollow tube and having a portion defining a first slot and a first cutting edge disposed along the first slot; a first flexible segment connecting the first tubular member to the drive cable; a second tubular member integrally formed from a second portion of hollow tube and having a portion defining a second slot and a second cutting edge disposed along the second slot; and a second flexible segment connecting the first and second tubular members.
Claim 17
Dependent Claim
45 words
The atherectomy device of claim 14 wherein the first and second portions of hollow tube comprise first and second portions of a single-piece hollow tube, the first and second tubular members and first and second flexible segments are integrally formed from the single-piece hollow tube.
Claim 18
Dependent Claim
21 words
The atherectomy device of claim 14 wherein each one of the plurality of flexible segments is tapered in a longitudinal direction.
Claim 19
Dependent Claim
19 words
The atherectomy device of claim 14 wherein the first and second tubular members are tapered in a longitudinal direction.
Claim 20
Dependent Claim
18 words
The atherectomy device of claim 14 further comprising a cover disposed on the first and second flexible segments.
Claim 21
Dependent Claim
14 words
The atherectomy device of claim 18 wherein the cover further comprises a lubricious material.
Claim 22
Dependent Claim
26 words
The atherectomy device of claim 14 wherein each one of the first and second flexible segments further comprises at least two hoop portions interconnected by cross-members.
Claim 23
Dependent Claim
37 words
The atherectomy device of claim 14 further comprising a guide catheter having a lumen and a distal end, wherein the drive cable is disposed in the lumen and the first flexible segment extends beyond the distal end.
Claim 24
Dependent Claim
27 words
The atherectomy device of claim 14 further comprising a lumen configured for aspirating occlusive material severed by the cutting edges of the first and second tubular members.
Claim 25
Dependent Claim
20 words
The atherectomy device of claim 14 further comprising a lumen configured for injecting a contrast agent, dye, fluid or drug.
Claim 26
Dependent Claim
29 words
The atherectomy device of claim 14 wherein the first tubular member has an exterior diameter and the cutting edge of the first tubular member extends beyond the exterior diameter.
Claim 27
Dependent Claim
20 words
The atherectomy device of claim 14 wherein the cable is configured to transmit rotational motion to the first flexible segment.
Claim 28
Dependent Claim
20 words
The atherectomy device of claim 14 wherein the cable is configured to transmit reciprocatory motion to the first flexible segment.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-31 | 2003-08-02 | 2004-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-31 | 2007-08-02 | 2008-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-31 | 2011-08-02 | 2012-02-01 | $7700.00 | Window Closed / Lapsed |