US3924629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for closing a cut end of a blood vessel
Assignee: Individual
•
Filing: 1974-11-29
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Granted: 1975-12-09
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Expires: 1994-11-29
Abstract
Abstract A method for closing a cut end of a blood vessel comprises the steps of nipping the cut end of the blood vessel between a pair of closing members formed of plastic material, and of fastening the pair of closing members to each other. An apparatus for carrying out the above method comprises a pair of actuating members for the pair of closing members to press the pair of closing members to each other when the cut end of the blood vessel is inserted between the pair of closing members, and concurrently to fasten the pair of closing members to each other.
Inventors
- 👤 Taichiro Akiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/0682; A61B17/12; A61B17/122; A61B17/128; A61B17/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
119 words
A method for closing a cut end of a blood vessel with a pair of closing members formed of plastic material wherein one of said closing members is rectangular with a pair of cut-out portions on opposing edges, and the other of said closing members has a similar rectangular shape with a pair of projections on opposing edges which correspond with said opposing edges of said one closing member, said method comprising the steps of nipping said cut end of the blood vessel between the pair of closing members, and fastening said pair of closing members to each other by aligning said projections with said cut-out portions, and pressing said projections over into engagement with said one closing member.
Claim 2
Independent Claim
119 words
A method for closing a cut end of a blood vessel with a pair of closing members formed of plastic material wherein one of said closing members is rectangular with a pair of cut-out portions on opposing edges, and the other of said closing members has a similar rectangular shape with a pair of projections on opposing edges which correspond with said opposing edges of said one closing member, said method comprising the steps of nipping said cut end of the blood vessel between the pair of closing members, and fastening said pair of closing members to each other by aligning said projections with said cut-out portions, and pressing said projections over into engagement with said one closing member.
Claim 3
Dependent Claim
69 words
A method according to claim 1 comprising the steps of feeding intermittently a pair of strips, one strip comprising an interconnected group of said one closing member, and the other strip comprising an interconnected group of the other closing member, cutting said pair of closing members from said pair of strips, and closing said cut end of the blood vessel by means of said cut pair of closing members.
Claim 4
Dependent Claim
30 words
A method according to claim 2 wherein said plastic material is selected from the group consisting of a titanium alloy, a tantalum alloy, an 18.6 chromium alloy, and a polycarbonate.
Claim 5
Dependent Claim
42 words
A method according to claim 2 wherein a plurality of holes are formed in each of the strips, said holes corresponding with the centers of said closing members, and including the step of intermittently feeding said strips by drivingly engaging said holes.
Claim 6
Dependent Claim
69 words
A method according to claim 4 wherein an apparatus including a pair of actuating members is provided for supporting said strips, said actuating members including pressing means and cutting means, and including the step of engaging said pair of closing members with said actuating members while said cut end is disposed between said pair of closing members whereby said closing members are simultaneously fastened and cut from said strips.
Claim 7
Dependent Claim
35 words
A method according to claim 5 including the step of feeding a successive pair of closing members automatically upon disengagement of the actuating members with the pair of closing members fastened to said cut end.
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |