One-piece surgical staple

Details One-piece surgical staple One-piece surgical staple

1991-05-23

1992-10-27

Pellegrino, Stephen C.

Surgery

Instruments

Sutureless closure

227902, 411457, 411920, A61B 1700

Patent

active

051585677

ABSTRACT:
The anvilless surgical stapler includes a pair of stapling assemblies which are mounted on the articulated handles of an applicator. Each stapling assembly includes a mounting block and a staple cartridge which is slidably mounted within the block. Further, each cartridge has a housing with a plurality of openings in which staples are slidably received along with a plurality of pushers. When the stapling assemblies are brought together, one or more ribs in the mounting blocks cause the pushers to fire the staples from the openings of the staple cartridge housings. A pair of deformable lips are also provided at the mouth of each opening for deforming the legs of each staple inwardly toward each other in order to embed into the tissue without penetrating into the tissue. The lips also permit passage of the deformed staples under the biasing force of the pushers.

REFERENCES:
patent: 4399810 (1983-08-01), Samuels et al.
patent: 4526174 (1985-07-01), Froehlich
patent: 4719917 (1988-01-01), Barrows et al.

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