Patent ID: 9339221
Filing Date: 2016-05-17
CPC Classification: A61B

Claim Text:
1. A system comprising: a catheter device comprising: an outer sheath, and a sensor probe, disposed inside the outer sheath, comprising a first optical fiber and a second optical fiber wherein distal ends of the first and second optical fibers are coupled to a tip of the sensor probe, where an oximeter sensor is formed, the tip of the sensor probe comprises a planar surface in which a first source structure and first detector structure are planar with the planar surface, wherein the first source structure is coupled to a cross-sectional end of the first optical fiber and the first detector structure is coupled to a cross-sectional end of the second optical fiber, at the tip, the first source structure and first detector structure are arranged in a line and there is a fixed distance between the first source structure and the first detector structure, the sensor probe comprises a second source structure and a second detector structure, a first distance is between the first source structure and the first detector structure, a second distance is between the first source structure and the second detector structure, a third distance is between the second source structure and the first detector structure, a fourth distance is between the second source structure and the second detector structure, the first distance is not equal to the second, third, and fourth distances, the second distance is not equal to the third and fourth distances, and the third distance is not equal to the fourth distance, wherein a third optical fiber couples to the second source structure, and a fourth optical fiber couples to the second detector structure, the tip comprises only the first source structure, second source structure, first detector structure, and second detector structure, wherein there are no source or detector structures between the first source structure and the first detector structure, second source structure and the second detector structure, the first source structure and the second source structure, the first source structure and the second source structure, and there are no source or detector structures between the outer sheath and the first source structure, the outer sheath and the second source structure, the outer sheath and the first detector structure, and the outer sheath and the second detector structure, at the tip, a filler material is between the first source structure and first detector structure, and between the first source structure and first detector structure and the sheath to hold the first and second two optical fibers at the fixed distance, the oximeter sensor is adapted to measure oxygen saturation of tissue having a thickness greater than 0, where the fixed distance between the first source structure and first detector structure is greater than 0, the second distance is greater than 0, the third distance is greater than 0, and the fourth distance is greater than 0, thereby allowing the oximeter sensor to measure oxygen saturation for the thickness of the tissue; and a system unit comprising a display, processor, signal emitter circuit, signal detector circuit, and a receptacle, wherein the receptacle is coupled to proximal ends of the first and second optical fibers, wherein the signal emitter circuit is configured to send an emitted signal through the first optical fiber to the first source structure and the signal detector circuit is configured to receive a returned signal from the second optical fiber that is coupled to the first detector structure, and the emitted signal is light having a wavelength between about 600 nanometers to about 900 nanometers.