Staple cartridge and an anvilless surgical stapler

Details Staple cartridge and an anvilless surgical stapler Staple cartridge and an anvilless surgical stapler

1987-09-02

1989-04-18

Yost, Frank T.

Elongated-member-driving apparatus

With means to assemble plural pieces of work

227DIG1, 128334R, B31B 100

Patent

active

048219398

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: 2122815 (1938-07-01), Hansen
patent: 3315863 (1967-04-01), O'Dea
patent: 3973709 (1976-08-01), Akopov et al.
patent: 4206863 (1980-06-01), Savino
patent: 4232810 (1980-11-01), Russell
patent: 4375866 (1983-03-01), Geirsch et al.

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