Frederick E. Shelton, IV,David C. Yates,Jason L. Harris,Brett E. Swensgard
申请号：
US15628175
公开号：
US20180360452A1
申请日:
2017.06.20
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A method of controlling motor velocity in a surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor coupled to the displacement member, a control circuit coupled to the motor, a position sensor coupled to the control circuit, and a timer coupled to the control circuit. The method includes receiving a first position of a displacement member from a position sensor, starting a timer, advancing the displacement member to a second position by setting a motor velocity to a first velocity, receiving the second position from the position sensor, stopping the timer when the displacement member reaches the second position, receiving elapsed time from the timer, wherein the elapsed time is the time taken by the displacement to move from the first position to the second position, and controlling, by the control circuit, velocity of the motor based on the elapsed time.
