Surgical stapling apparatus with curved cartridge and anvil assemblies
AssigneeCovidien LP
InventorStanislaw Kostrzewski
Life of this patent
Estimating the term…
Abstract
A surgical instrument is designed for clamping, cutting, and/or joining tissue. This surgical instrument includes a handle portion, an elongate portion extending distally from the handle portion, first and second jaw members disposed adjacent a distal portion of the elongated portion, a shaft movable upon actuation of the handle portion, and a knife bar operatively coupled to the shaft. At least one of the jaw members is movable with respect to the other between an open position and an approximated position for engaging body tissue therebetween. The knife bar has a curved profile and moves along at least one of the jaw members upon movement of the shaft.
Claims16
1-15. (canceled)
A surgical instrument, comprising:
- a first jaw member;
- a second jaw member, wherein at least one of the jaw members is movable relative to the other jaw member between an open position and an approximated position;
- a shaft disposed in mechanical cooperation with at least one of the jaw members;
- a pinion disposed adjacent a portion of the shaft;
- and
- a knife bar including a rack adapted to mesh with the pinion, the knife bar movable with respect to at least one of the jaw members between a retracted position and a deployed position upon rotation of the shaft.
An end effector for use with a surgical instrument, the end effector comprising:
- a first jaw member;
- a second jaw member, wherein at least one of the first jaw member or the second jaw member is linearly movable in a first direction between an open position and an approximated position with respect to the other jaw member;
- and
- a cutting member movable in a second direction with respect to the first jaw member, the first direction being non-parallel to the second direction.
Dependencies are inferred from the claim text.