Patent ID: 11896222
Assignee: CILAG GMBH INTERNATIONAL
Field: Medical technology (Instruments)
Classification: CPC A  H  Y | IPC A  H

Claim 0:
1. A surgical system, comprising:
an end effector, comprising:
a first jaw; and
a second jaw moveable relative to the first jaw between an open position and a closed position;

a firing member movable between a starting position and an ending position;
a motor configured to advance the firing member toward the ending position;
a current sensor configured to sense a current draw of the motor; and
a control system comprising a processor and a memory, wherein the control system is configured to:
set, by the control system, a target firing speed range of the firing member based on a current draw of the motor sensed by the current sensor at a closure end position, wherein the closure end position corresponds to the second jaw being placed in the closed position, and wherein the target firing speed range is between a first non-zero speed value and a second non-zero speed value;
set, by the control system, a threshold current draw range corresponding to the target firing speed range of the firing member, wherein the threshold current draw range is between a first non-zero current value and a second non-zero current value;
advance, by the motor, the firing member toward the ending position at a firing speed within the target firing speed range;
monitor, by the current sensor, a current draw of the motor as the firing member is driven toward the ending position at the firing speed within the target firing speed range;
compare, by the control system, the monitored current draw to the threshold current draw range; and
adjust, by the control system, the firing speed of the firing member based on the monitored current draw crossing below the first non-zero current value corresponding to the threshold current draw range or above the second non-zero current value corresponding to the threshold current draw range.