Patent US4287890A successfully refreshed from Google Patents.
US4287890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endarterectomy method
Assignee: Individual
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Filing: 1980-01-24
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Granted: 1981-09-08
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Expires: 2000-01-24
Abstract
Abstract Arteriosclerotic material is stripped free from an artery by clamping the artery between a pair of opposed roller elements and moving the roller elements along the length of plaque segment to be removed. A tapered edge is first formed at the leading end of the plaque segment to provide a working edge for the roller instrument.
Inventors
- 👤 Thomas J. Fogarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/2812; A61B17/282; Y; Y10; Y10S; Y10S294/00; Y10S294/902
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
51 words
A method for freeing arteriosclerotic occlusions from arteries comprising crimping the artery to form a tapered end edge on an occlusion segment, clamping the artery between a pair of roll-like elements disposed in pressing relation with said end edge, and moving said elements to the distal end of said occlusion segment.
Claim 2
Independent Claim
51 words
A method for freeing arteriosclerotic occlusions from arteries comprising crimping the artery to form a tapered end edge on an occlusion segment, clamping the artery between a pair of roll-like elements disposed in pressing relation with said end edge, and moving said elements to the distal end of said occlusion segment.
Claim 3
Dependent Claim
34 words
The method of claim 1, further comprising removing said segment from the artery by forming an incision in the artery adjacent the digital end of said segment, and pulling said segment through said incision.
Claim 4
Independent Claim
112 words
A method for freeing an arteriosclerotic occlusion from an artery comprising pre-conditioning said artery and occlusion by crimping them to form substantially separate occlusion segments having tapered end edges substantially complemental to the working surface portions of hereinafter mentioned roll-like elements, forming incisions in said artery adjacent the ends of said occlusion, clamping the artery between a pair of roll-like elements at the location of said tapered end edges, moving said elements in clamped condition from said location, first in one direction past an end of said occlusion and then in the other direction past the other end of said occlusion, and removing the occlusion material from the artery through said incisions.
Claim 5
Independent Claim
112 words
A method for freeing an arteriosclerotic occlusion from an artery comprising pre-conditioning said artery and occlusion by crimping them to form substantially separate occlusion segments having tapered end edges substantially complemental to the working surface portions of hereinafter mentioned roll-like elements, forming incisions in said artery adjacent the ends of said occlusion, clamping the artery between a pair of roll-like elements at the location of said tapered end edges, moving said elements in clamped condition from said location, first in one direction past an end of said occlusion and then in the other direction past the other end of said occlusion, and removing the occlusion material from the artery through said incisions.
Claim 6
Independent Claim
59 words
A method for freeing arteriosclerotic occlusions from arteries comprising laterally compressing the artery in a zone of compression to form a tapered end edge on an occlusion segment, and stripping said occlusion segment from said artery by causing said zone of compression to progressively traverse said segment from said tapered end edge to the distal end of said segment.
Claim 7
Independent Claim
59 words
A method for freeing arteriosclerotic occlusions from arteries comprising laterally compressing the artery in a zone of compression to form a tapered end edge on an occlusion segment, and stripping said occlusion segment from said artery by causing said zone of compression to progressively traverse said segment from said tapered end edge to the distal end of said segment.
References Cited (Backward Citations)
US2944552A
Cited
US3648701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |