Patent ID: 9486196
Filing Date: 2016-11-08
CPC Classification: A61B

Claim Text:
1. A system comprising: a retractor, for retracting a tissue, comprising a shaft, a handle coupled to a proximal end of the shaft, a tip coupled to a distal end of the shaft, wherein the tip comprises a retractor portion and an oximeter sensor; a force sensor coupled to the retractor, wherein the force sensor is a load cell having a first end and a second end on opposite sides of each other, along an axis of the load cell, and the force sensor measures force in a first direction; one or more optical fibers, wherein the one or more optical fibers pass through a channel in the shaft, distal ends of the one or more optical fibers are coupled to one or more openings of the tip, and at least one optical fiber is coupled to one opening of the tip to transmit light in the first direction; and a system unit comprising a display, processor, signal emitter circuit, signal detector circuit, a receptacle to couple to proximal ends of the one or more optical fibers, wherein the signal emitter circuit sends a signal through from the one or more optical fibers, the signal detector circuit receives a signal through the one or more optical fibers, the processor processes signals received through the one or more optical fibers, and the display shows results of the processing by the processor.