Cartridge assembly for a surgical stapling instrument

Details Cartridge assembly for a surgical stapling instrument Cartridge assembly for a surgical stapling instrument

1986-03-27

1987-10-20

Thaler, Michael H.

Surgery

Truss

Pad

227 19, 227155, 227DIG1, 128305, A61B 1710

Patent

active

047007036

ABSTRACT:
A disposable cartridge assembly for a surgical stapling instrument wherein an anvil carrying component comprises constituent anvil elements articulated with respect to each other and presenting an annular anvil surface. A biasing element is provided for biassing the elements into a retracted position wherein the anvil surface has a first diameter. A locking element is provided for releasable interengagement with the anvil elements so as to maintain them in an expanded position against the biassing force wherein the anvil surface has a second larger diameter and so as to lock said elements against relative displacement, the arrangement being such that upon disengagement of the locking element from the anvil elements, the latter are displaced under the biassing force into the retracted position.

REFERENCES:
patent: 4289133 (1981-09-01), Rothfuss
patent: 4304236 (1981-12-01), Conta et al.
patent: 4505272 (1985-03-01), Utamyshev et al.
patent: 4505414 (1985-03-01), Filipi

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