Patent ID: 11931027
Assignee: CILAG GMBH INTERNATIONAL
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. A surgical instrument, comprising:
a cartridge jaw, comprising:
a cartridge body comprising a proximal end, a distal end, and a longitudinal axis defined between said proximal end and said distal end;
staple cavities arranged in a longitudinal row; and
staples removably stored in said staple cavities;

a staple firing system, comprising:
an electric motor; and
a firing member movable longitudinally through a staple firing stroke by said electric motor to sequentially eject said staples from said longitudinal row of staple cavities;

an anvil jaw comprising staple forming pockets configured to deform said staples during said staple firing stroke, wherein each said staple forming pocket is configured to deform a said staple; and
a motor control circuit in communication with said electric motor, wherein said motor control circuit is configured to measure the electrical current to said electric motor during said staple firing stroke, wherein the deformation of each said staple against said anvil creates a load pulse within said staple firing system, wherein said motor control circuit is configured to evaluate said load pulses during said staple firing stroke, and wherein said motor control circuit is configured to reduce the speed of said electric motor when a said staple has missed a said staple forming pocket and created an excessive load pulse.