US4505273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical staple
Assignee: B Braun Surgical AG
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Filing: 1983-02-09
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Granted: 1985-03-19
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Expires: 2003-02-09
Abstract
Abstract A surgical staple is disclosed comprising an arcuate central region which can be flattened by a stapling tool. Straight legs extend obliquely upwardly from the central region to which are connected downwardly extending side portions. The side portions are curved substantially in the form of an arc of a circle having a center at the center for the central region. When the central region is flattened, the side portions move about an arc of a circle so that automatic puncture channels are produced. Tearing of tissue is thereby prevented.
Inventors
- 👤 Karl Braun
- 👤 Jurgen Fetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/064; A61B17/0644
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
A surgical staple for closing wound edges comprising a central portion and opposed side portions, the central portion including an upwardly concave arcuate region having a substantially constant radius of curvature adapted to be flattened by a stapling tool such that a substantially circular substantially downward movement of the side portions is produced, each side portion including an end section which extends approximately along an arc having a radius of curvature centered at substantially the center for the arcuate central region, and having a free end configured so as to facilitate cutting or puncturing of skin or tissue.
Claim 2
Dependent Claim
98 words
A surgical staple for closing wound edges comprising a central portion and opposed side portions, the central portion including an upwardly concave arcuate region having a substantially constant radius of curvature adapted to be flattened by a stapling tool such that a substantially circular substantially downward movement of the side portions is produced, each side portion including an end section which extends approximately along an arc having a radius of curvature centered at substantially the center for the arcuate central region, and having a free end configured so as to facilitate cutting or puncturing of skin or tissue.
Claim 3
Dependent Claim
26 words
The surgical staple according to claim 1 further comprising a straight leg having a longitudinal axis, disposed between the arcuate central region and each side portion.
Claim 4
Dependent Claim
24 words
The surgical staple according to claim 2 wherein the legs are directed obliquely upwardly and outwardly, and the side portions extend substantially vertically downwardly.
Claim 5
Dependent Claim
36 words
The surgical staple according to claim 3 wherein the tangent to the center of a side portion section extends at an angle of less than about 60° to the longitudinal axis of the associated straight leg.
Claim 6
Dependent Claim
35 words
The surgical staple according to claim 2 wherein the tangent to the center of said side portion section extends at an angle of less than about 60° to the longitudinal axis of the straight leg.
Claim 7
Dependent Claim
23 words
The surgical staple according to claim 1 wherein a point on the curved arcuate region lies substantially in the centroid of the staple.
References Cited (Backward Citations)
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Cited
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Cited
US3825009A
Cited
US4256251A
Cited
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Cited
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Cited
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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) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |