David C. Yates,Frederick E. Shelton, IV,Bret W. Smith,Brett E. Swensgard,Ryan J. Laurent
申请号：
US13784957
公开号：
US09549732B2
申请日:
2013.03.05
申请国别(地区):
US
年份:
2017
代理人:
摘要：
In various embodiments, a surgical stapler is disclosed. The stapler comprises a handle, a shaft, and a surgical end effector extending from the shaft. The stapler further comprises a firing member configured to move through a plurality of positions during a firing stroke, an electric motor configured to drive the firing member during the firing stroke, and a control system for controlling the electric motor. The control system comprises a battery and a pulse frequency modulation circuit configured to control the frequency of pulses supplied from the battery to the electric motor, wherein the pulse frequency modulation circuit is configured to optimize the speed applied to the firing member.
