Patent ID: 9380966
Filing Date: 2016-07-05
CPC Classification: A61B

Claim Text:
1. A device comprising: a shaft, comprising a first bend, wherein from a distal end of the shaft to the first bend, the shaft extends in a first direction, and from the first bend to a proximal end of the shaft, the shaft extends in a second direction, which is different from the first direction; a handle, coupled to a proximal end of the shaft, extending in a second direction; a tip, coupled to a distal end of the shaft, comprising a retractor portion and an oximeter sensor on a bottom surface of the tip, wherein the retractor portion comprises a blade having a first edge and a second edge, opposite to the first edge, a first thickness between the first and second edges, the first edge has a first length that is greater than the first thickness, the first edge is closer to the bottom surface than the second edge, and the blade extends from the bottom surface in a third direction away from an axis that passes through the shaft; a first optical fiber; a second optical fiber, wherein the first optical fiber passes through a channel in the shaft and a distal end of the first optical fiber is coupled to a first sensor opening of the tip, and the second optical fiber passes through the channel in the shaft and a distal end of the second optical fiber is coupled to a second sensor opening of the tip, the first sensor opening is positioned on the bottom surface of the tip a first distance from the first edge, the second sensor opening is positioned on the bottom surface of the tip a second distance from the first edge, and the first distance is the same as the second distance; and a system unit comprising a display, processor, signal emitter circuit, signal detector circuit, and a receptacle to couple to proximal ends of the first and second optical fibers, wherein the signal emitter circuit sends a signal through the first optical fiber and the signal detector circuit receives the signal from the second optical fiber.