Patent US5350400A successfully refreshed from Google Patents.
US5350400A
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Malleable, bioabsorbable, plastic staple; and method and apparatus for deforming such staple
Assignee: Covidien AG
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Filing: 1992-06-30
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Granted: 1994-09-27
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Expires: 2012-06-30
Abstract
Abstract A malleable, bioabsorbable polymeric staple includes a back span with two legs depending perpendicularly therefrom that are deformed toward each other initially and then upwardly toward the back span such that end points on each leg extends to the side and past the back span. The staple has a noncircular cross-sectional shape. A surgical staple-deforming anvil for deforming the staples has a staple-receiving face formed with a pair of elongated, non-collinear pocket-like depressions each having an entry end lying on a longitudinal axis parallel to the back span of the staple, and an exit end. The respective exit ends of the pocket depressions are located on opposite sides of the longitudinal axis. Accordingly, the legs of a staple driven toward the anvil and received in the pocket depressions are initially bent toward each other and then steered upwardly toward opposite sides of the back span.
Inventors
- 👤 Felix F. Esposito
- 👤 John A. Conners
- 👤 Joseph N. Logan
- 👤 James W. Dwyer
- 👤 Laurence Crainich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:16
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/068; A61B17/0682; A61B17/0686; A61B17/064; A61B17/0644; A61B2017/00004; A61B17/072; A61B2017/07214; A61B2017/07257; A61B2017/07264; Y; Y10; Y10S; Y10S227/00; Y10S227/902; Y10S411/00; Y10S411/923
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
85 words
A deformed malleable, polymeric surgical staple, comprising: a back span; and first and second legs extending in one direction from opposite ends of said back span, each of said first and second legs terminating in an end point; wherein said first and second legs are permanently deformed inwardly toward each other and toward said back span in a direction generally opposed to the one direction with each of said end points extending in the opposed direction toward at least one side of said back span.
Claim 2
Dependent Claim
85 words
A deformed malleable, polymeric surgical staple, comprising: a back span; and first and second legs extending in one direction from opposite ends of said back span, each of said first and second legs terminating in an end point; wherein said first and second legs are permanently deformed inwardly toward each other and toward said back span in a direction generally opposed to the one direction with each of said end points extending in the opposed direction toward at least one side of said back span.
Claim 3
Dependent Claim
51 words
The polymeric surgical staple according to claim 1, wherein said first leg, in the region of the end point thereof, is disposed on one side of said back span and said second leg, in the region of the end point thereof, is disposed on an opposite side of said back span.
Claim 4
Dependent Claim
32 words
The polymeric surgical staple according to claim 2, wherein the end points of said first and second legs respectively lie on opposite sides of a plane extending perpendicularly to said back span.
Claim 5
Dependent Claim
32 words
A polymeric surgical staple according to claims 1 to 3, wherein said first and second legs and said means for connecting said first and second legs each has a noncircular cross-section shape.
Claim 6
Dependent Claim
16 words
A polymeric surgical staple according to claim 4, wherein said noncircular cross-sectional shape is an oval.
Claim 7
Dependent Claim
30 words
A polymeric surgical staple according to claim 5, wherein the aspect ratio of the minor dimension of the cross-sectional shape to the major dimension thereof is less than about 0.75.
Claim 8
Dependent Claim
16 words
A polymeric surgical staple according to claim 4, wherein said noncircular cross-sectional shape is a rectangle.
Claim 9
Dependent Claim
30 words
A polymeric surgical staple according to claim 7, wherein the aspect ratio of the minor dimension of the cross-sectional shape to the major dimension thereof is less than about 0.75.
Claim 10
Dependent Claim
67 words
A deformable, malleable, polymeric surgical staple, comprising: a back span; and first and second legs extending in one direction from opposite ends of said back span, each of said first and second legs are permanently deformed and terminate in an end point; at least a portion of said back span, said first leg, and said second leg at which staple is deformable having a noncircular cross-sectional shape.
Claim 11
Dependent Claim
67 words
A deformable, malleable, polymeric surgical staple, comprising: a back span; and first and second legs extending in one direction from opposite ends of said back span, each of said first and second legs are permanently deformed and terminate in an end point; at least a portion of said back span, said first leg, and said second leg at which staple is deformable having a noncircular cross-sectional shape.
Claim 12
Dependent Claim
17 words
A polymeric surgical staple according to claim 9, wherein said noncircular cross sectional shape is an oval.
Claim 13
Dependent Claim
30 words
A polymeric surgical staple according to claim 10, wherein the aspect ratio of the minor dimension of the cross-sectional shape to the major dimension thereof is less than about 0.75.
Claim 14
Dependent Claim
16 words
A polymer surgical staple according to claim 9, wherein said noncircular cross-sectional shape is a rectangle.
Claim 15
Dependent Claim
30 words
A polymeric surgical staple according to claim 12, wherein the aspect ratio of the minor dimension of the cross-sectional shape to the major dimension thereof is less than about 0.75.
Claim 16
Independent Claim
106 words
A method of deforming a malleable, polymeric surgical staple having a back span, first and second legs extending in one direction from opposite ends of the back span and substantially perpendicularly thereto in an undeformed state, the first and second legs each terminating in an end point; said method comprising the steps of: initially deforming the first and second legs inwardly toward each other; thereafter deforming the first and second legs toward the back span in a direction generally opposed to the one direction to cause the end points respectively of the first and second legs to extend in the opposed direction past the back span.
Claim 17
Independent Claim
106 words
A method of deforming a malleable, polymeric surgical staple having a back span, first and second legs extending in one direction from opposite ends of the back span and substantially perpendicularly thereto in an undeformed state, the first and second legs each terminating in an end point; said method comprising the steps of: initially deforming the first and second legs inwardly toward each other; thereafter deforming the first and second legs toward the back span in a direction generally opposed to the one direction to cause the end points respectively of the first and second legs to extend in the opposed direction past the back span.
Claim 18
Dependent Claim
53 words
The method of forming a polymeric surgical staple according to claim 14, further comprising the step of deforming the first leg so the end point thereof extends past one side of the back span and deforming the second leg so the end point thereof extends past an opposite side of the back span.
Claim 19
Dependent Claim
45 words
The method of forming a polymeric surgical staple according to claim 15, further comprising the step of deforming the first and second legs so that the end points respectively thereof extend across and lie on opposite sides of a plane perpendicular to the back span.
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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) | 1997-09-26 | 1998-03-28 | 1998-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-26 | 2002-03-28 | 2002-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-26 | 2006-03-28 | 2006-09-27 | $7700.00 | Window Closed / Lapsed |