Larry C. Heaton, II,Alex Keller,Robert E. Lash,Jimmy Jian-min Mao
申请号：
US12365735
公开号：
US09486196B1
申请日:
2009.02.04
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A retractor system includes a retractor with an oximeter sensor at its tip and a force sensor coupled to the retractor. The retractor system also includes a system unit which can send signals to and receive signals from the oximeter sensor via optical fibers. The oximeter sensor measures oxygen saturation of a tissue being refracted by the retractor, and the force sensor measures an amount of force that is applied to the retracted tissue by the tip of the retractor. Another retractor system has a closed loop control arrangement with a positioning mechanism which moves the retractor based on measurements of the sensors.
