US4655222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated surgical staple
Assignee: Ethicon Inc
•
Filing: 1984-07-30
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Granted: 1987-04-07
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Expires: 2004-07-30
Abstract
Abstract Sterile surgical staples for use with a stapling instrument with the surface of the staple coated with a low molecular weight fluorocarbon polymer.
Inventors
- 👤 Hugo R. Florez
- 👤 Robert J. Tannhauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/08; A61B17/064; A61B17/0644; A61L; A61L31/00; A61L31/08; A61L31/10; Y; Y10; Y10S; Y10S411/00; Y10S411/92
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
A sterile surgical staple for use with a stapling instrument in closing a wound of human or animal tissue comprising a pair of legs joined at one end by a crown with substantially the entire surface of said staple coated with a low molecular weight fluorocarbon polymer whereby it is easier to place said staple in said skin to close a wound and it is easier to remove said staple from said skin when the wound has healed.
Claim 2
Dependent Claim
78 words
A sterile surgical staple for use with a stapling instrument in closing a wound of human or animal tissue comprising a pair of legs joined at one end by a crown with substantially the entire surface of said staple coated with a low molecular weight fluorocarbon polymer whereby it is easier to place said staple in said skin to close a wound and it is easier to remove said staple from said skin when the wound has healed.
Claim 3
Dependent Claim
10 words
The staple of claim 1 wherein the polymer is polytetrafluoroethylene.
Claim 4
Dependent Claim
81 words
In a surgical stapling instrument for implanting and forming surgical staples in the tissue of a patient, said instrument comprising a body, means for closing staples as they are driven into said tissue, a magazine for carrying a plurality of staples mounted on said body, and means for sequentially feeding staples from said magazine to said means for driving and closing the staples, the improvement which comprises the surface of said staples being coated with a low molecular weight fluorocarbon polymer.
Claim 5
Dependent Claim
81 words
In a surgical stapling instrument for implanting and forming surgical staples in the tissue of a patient, said instrument comprising a body, means for closing staples as they are driven into said tissue, a magazine for carrying a plurality of staples mounted on said body, and means for sequentially feeding staples from said magazine to said means for driving and closing the staples, the improvement which comprises the surface of said staples being coated with a low molecular weight fluorocarbon polymer.
Claim 6
Dependent Claim
11 words
The improvement according to claim 3 wherein the polymer is polytetrafluoroethylene.
Claim 7
Dependent Claim
24 words
A method of closing a wound in an animal which comprises using the staple of claim 1 to hold an approximated wound in position.
References Cited (Backward Citations)
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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) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |