US 10,561,419 B2 · Powered end effector assembly with pivotable channel

Abstract

A powered surgical stapling device includes an end effector having a stationary anvil and a cartridge assembly that is supported for pivotal movement in relation to the anvil. In embodiments, the end effector includes a housing that supports an input shaft, an anvil fixedly supported on the housing, and a cartridge assembly pivotally supported in relation to the housing and the anvil. The cartridge assembly includes a channel that is pivotally supported on the housing. A lead screw is positioned within the channel and supports an internally threaded dynamic clamping member. The lead screw is secured to the input shaft by a universal joint such that rotation of the input shaft effects rotation of the lead screw and longitudinal translation of the dynamic clamping member along the lead screw. The universal joint facilitates the translation of the rotatable movement of the input shaft into rotation of the lead screw while allowing pivotal movement of the lead screw in relation to the input shaft.

Claims17

Dependent claims

An end effector comprising:

a housing;
an anvil assembly having a proximal end fixedly secured to the housing;
a channel pivotally supported in relation to the housing, the channel being pivotal in relation to the anvil assembly between spaced and approximated positions;
a threaded lead screw supported within the channel;
and
an input shaft rotatably supported within the housing, the input shaft having a proximal end supporting an input gear and a distal end coupled to a proximal end of the lead screw by a universal joint, the universal joint being configured to translate rotation of the input shaft into rotation of the lead screw and to facilitate pivotal movement of the lead screw in relation to the input shaft, wherein the channel and the lead screw are pivotable in relation to the housing and in relation to the anvil assembly about the universal joint between the spaced and approximated positions.

3 more elements

A surgical stapling device comprising:

a powered handle assembly;
an adapter extending distally from the powered handle assembly;
an end effector assembly supported on the distal end of the adapter, the end effector assembly including:
a housing;
an anvil assembly having a proximal end fixedly secured to the housing;
a channel pivotally supported in relation to the housing, the channel being pivotal in relation to the anvil assembly between spaced and approximated positions;
a threaded lead screw supported within the channel;
and
an input shaft rotatably supported within the housing, the input shaft having a proximal end supporting an input gear and a distal end coupled to a proximal end of the lead screw by a universal joint, the universal joint being configured to translate rotation of the input shaft into rotation of the lead screw and to facilitate pivotal movement of the lead screw in relation to the input shaft, wherein the channel and the lead screw are pivotable in relation to the housing and in relation to the anvil assembly about the universal joint between the spaced and approximated positions.

6 more elements

Dependencies are inferred from the claim text.

Powered end effector assembly with pivotable channel

Life of this patent

Powered end effector assembly with pivotable channel

Life of this patent

Abstract

Claims17