Patent ID: 11918222
Assignee: CILAG GMBH INTERNATIONAL
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 8:
9. A surgical instrument for use with a robotic surgical system, the surgical instrument comprising:
a housing attachable to the robotic surgical system;
an elongate shaft assembly;
an end effector, comprising:
a cartridge jaw, comprising:
a channel comprising a base;
a longitudinal internal passage defined in the channel, wherein the base extends under the longitudinal internal passage; and
a longitudinal array of cartridge jaw windows defined in the base, wherein the longitudinal array of cartridge jaw windows comprises a proximal-most cartridge jaw window and a distal-most cartridge jaw window; and

an anvil jaw, comprising:
a top portion;
a longitudinal anvil jaw slot; and
an anvil jaw window defined in the top portion; and

a firing bar movable from a proximal position to a distal fully-fired position during a firing stroke, wherein the firing bar is movable within the longitudinal internal passage and the longitudinal anvil jaw slot during the firing stroke, and wherein the firing bar comprises:
an anvil jaw-engaging portion, wherein the anvil jaw-engaging portion is viewable through the anvil jaw window when the firing bar is in the proximal position; and
a cartridge jaw-engaging portion configured to engage the cartridge jaw, wherein the longitudinal internal passage is configured to receive the cartridge jaw-engaging portion during at least a portion of the firing stroke, wherein the base extends under the cartridge jaw-engaging portion during at least a portion of the firing stroke, wherein the cartridge jaw-engaging portion is viewable through the proximal-most cartridge jaw window when the firing bar is in the proximal position, and wherein the cartridge jaw-engaging portion is viewable through the distal-most cartridge jaw window when the firing bar is in the distal fully-fired position.