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US 4,917,114 AGranted
Surgical fastener and surgical stapling apparatus
AssigneeUnited States Surgical Corporation
InventorsDavid T. Green, Herbert W. Korthoff
Life of this patent
Estimating the term…
Abstract
The two-part surgical fastener is composed of an annular stapling part having projecting prongs and annular retaining board having an annular gap which receives the prongs. Barbs on the prongs serve to abutt against a retaining ring on the retaining part to maintain a fixed relationship between the parts for stapling purposes. The anvil assembly on which the retaining part of the fastener is mounted as fingers which can be collapsed radially inwardly after stapling to permit ease of removal.
Claims12
A surgical fastener comprising
- an annular stapling part having a plurality of axially extending circumferentially spaced prongs, each said prong having a sharp tip for piercing tissue;
- an annular retaining part having an annular gap for receiving said prongs, said gap being of an axial length less than an axial length of said prongs to permit passage of said prongs therethrough;
- and
- catching means for holding said prongs in said retaining part to clamp the pierced tissue therebetween.
1 more element
A surgical fastener comprising
- an annular stapling part having a plurality of axially extending circumferentially spaced prongs, each said prong having a sharp tip for piercing tissue;
- an annular retaining part including an inner cylindrical guide wall and a concentrically disposed outer retaining ring defining an annular gap for receiving said prongs;
- and
- catch means for holding said prongs in said retaining part between said guide wall and said retaining ring.
1 more element
Dependencies are inferred from the claim text.