US6083242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical staples with deformation zones of non-uniform cross section
Assignee: Holobeam Inc
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Filing: 1999-02-17
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Granted: 2000-07-04
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Expires: 2019-02-17
Abstract
Abstract An improved staple for use in internal surgery is disclosed. This improved staple has a deformation zone in each leg that varies in cross section along the length of the deformation zone. These cross sections are shaped so as to control staple leg deformation during staple installation into tissue in order to more effectively produce hemostasis and unite tissues and minimize tissue damage.
Inventors
- 👤 Melvin S. Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/064; A61B17/0644
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
153 words
A staple having a backspan and two legs, each of said legs having a tip and an elongated deformation zone, each of said deformation zones being more susceptible to bending than other regions of staple legs adjacent to each of said deformation zones when said tips of such staple legs are forced toward each other, the legs having a cross section area outside the deformation zones, each of said elongated deformation zones including an intermediate region that is tapered and that varies in cross sectional area within said deformation zone, along the length thereof, such that said cross sectional area is different at a location of said region closest to said backspan than it is at a location of said region closest to said tip of said legs, the cross section within said deformation zone smoothly varying at each end thereof until matching the cross section of said legs outside the deformation zone.
Claim 2
Dependent Claim
153 words
A staple having a backspan and two legs, each of said legs having a tip and an elongated deformation zone, each of said deformation zones being more susceptible to bending than other regions of staple legs adjacent to each of said deformation zones when said tips of such staple legs are forced toward each other, the legs having a cross section area outside the deformation zones, each of said elongated deformation zones including an intermediate region that is tapered and that varies in cross sectional area within said deformation zone, along the length thereof, such that said cross sectional area is different at a location of said region closest to said backspan than it is at a location of said region closest to said tip of said legs, the cross section within said deformation zone smoothly varying at each end thereof until matching the cross section of said legs outside the deformation zone.
Claim 3
Dependent Claim
25 words
The staple of claim 1 wherein said intermediate regions vary in cross sectional area at a constant rate, and wherein said constant rate is linear.
Claim 4
Dependent Claim
15 words
The staple of claim 2 wherein said constant rate is no more than six degrees.
Claim 5
Dependent Claim
104 words
A staple having a back span and two legs, each of said legs having a tip, each leg having an elongated deformation zone, said deformation zones being more susceptible to bending than other regions of said staple legs adjacent to said deformation zones when said tips of said legs are forced toward each other, each of said deformation zones having a length, a width, and a depth, wherein both the width and the depth of the deformation zones vary along the length thereof, and wherein the depth is thinner toward the center of each of said elongated deformation zones than at either end thereof.
Claim 6
Dependent Claim
104 words
A staple having a back span and two legs, each of said legs having a tip, each leg having an elongated deformation zone, said deformation zones being more susceptible to bending than other regions of said staple legs adjacent to said deformation zones when said tips of said legs are forced toward each other, each of said deformation zones having a length, a width, and a depth, wherein both the width and the depth of the deformation zones vary along the length thereof, and wherein the depth is thinner toward the center of each of said elongated deformation zones than at either end thereof.
Claim 7
Dependent Claim
28 words
The staple of claim 4 wherein the depth and width vary such that as the depth increases, the width decreases and as the width decreases, the depth increases.
References Cited (Backward Citations)
US5445648A
Cited
US5814763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |