Wireless, handheld tissue oximetry device
First Claim
1. A method comprising:
- enclosing in a housing a first printed circuit board comprising a processor and a memory, wherein the memory is coupled to the processor;
providing a display, coupled to the processor and the housing, wherein the display is visible from an exterior side of the housing, wherein a shape of the housing comprises;
a back surface of the housing which during use, rests between a thumb and forefinger of the hand,a probe tip comprising a relatively planar surface comprising sensor openings, wherein the relatively planar surface is angled at a non-zero angle relative to the back surface,a top surface of the housing comprising the display, wherein the top surface is angled at a non-zero angle relative to the back surface, anda tubular hand grip region, comprising the back surface, coupled between the top surface and the probe tip;
forming a structure of the housing to retain the probe tip, wherein the probe tip is coupled to an exterior side of the enclosure, and the probe tip comprises at least a first sensor opening, a second sensor opening, a third sensor opening, and a fourth sensor opening,wherein a first distance is between the first and second sensor openings, and a second distance is between the first and third sensor openings, a third distance is between the first sensor opening and the fourth sensor opening, and the first distance is different from the second distance, and the third distance is greater than the first distance and the second distance;
providing a first light source for the first sensor opening, wherein the first sensor opening is coupled via an optical fiber to the first light source;
providing light detectors for the second and the third sensor openings, wherein the second and the third sensor openings are coupled via channels to the light detectors, and the optical fiber has a length that is longer than each of the channels;
providing a second light source for the fourth sensor opening, wherein the first sensor opening is coupled via an optical fiber to the second light source;
configuring the probe tip to receive first data associated with the first and the second sensor openings;
configuring the probe tip to receive second data associated with the first and the third sensor openings; and
configuring the processor to perform spatially-resolved spectroscopy using the first and the second data to determine an oxygen saturation value.
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Accused Products
Abstract
A system includes an enclosure having a processor and a memory coupled to the processor. The enclosure includes a display coupled to the processor where the display is visible from an exterior of the enclosure; and a battery within the enclosure coupled to the processor and the display. The enclosure includes a probe tip coupled to an exterior of the enclosure. The probe tip includes first, second, and third sensor openings. A first distance between the first and second sensor openings is different than a second distance between the first and third sensor openings. The enclosure includes code stored in the memory where the code is executable by the processor, and includes code to receive first data associated with the first and second sensor openings, code to receive second data associated with the first and second sensor openings, and code to perform SRS using the first and the second data.
50 Citations
41 Claims
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1. A method comprising:
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enclosing in a housing a first printed circuit board comprising a processor and a memory, wherein the memory is coupled to the processor; providing a display, coupled to the processor and the housing, wherein the display is visible from an exterior side of the housing, wherein a shape of the housing comprises; a back surface of the housing which during use, rests between a thumb and forefinger of the hand, a probe tip comprising a relatively planar surface comprising sensor openings, wherein the relatively planar surface is angled at a non-zero angle relative to the back surface, a top surface of the housing comprising the display, wherein the top surface is angled at a non-zero angle relative to the back surface, and a tubular hand grip region, comprising the back surface, coupled between the top surface and the probe tip; forming a structure of the housing to retain the probe tip, wherein the probe tip is coupled to an exterior side of the enclosure, and the probe tip comprises at least a first sensor opening, a second sensor opening, a third sensor opening, and a fourth sensor opening, wherein a first distance is between the first and second sensor openings, and a second distance is between the first and third sensor openings, a third distance is between the first sensor opening and the fourth sensor opening, and the first distance is different from the second distance, and the third distance is greater than the first distance and the second distance; providing a first light source for the first sensor opening, wherein the first sensor opening is coupled via an optical fiber to the first light source; providing light detectors for the second and the third sensor openings, wherein the second and the third sensor openings are coupled via channels to the light detectors, and the optical fiber has a length that is longer than each of the channels; providing a second light source for the fourth sensor opening, wherein the first sensor opening is coupled via an optical fiber to the second light source; configuring the probe tip to receive first data associated with the first and the second sensor openings; configuring the probe tip to receive second data associated with the first and the third sensor openings; and configuring the processor to perform spatially-resolved spectroscopy using the first and the second data to determine an oxygen saturation value. - View Dependent Claims (2, 3, 4)
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5. A handheld tissue oximeter device comprising:
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a housing comprising; a processor, contained within the housing; a memory, contained within the housing, wherein the memory is coupled to the processor; a display, coupled to the processor, wherein the display is visible from an exterior of the housing; and a sensor module, coupled to the processor, wherein the sensor module comprises a probe face that is retained by the tip portion of the housing at a relatively fixed position with respect to the housing and that is placed against and faces tissue to be measured, and the probe face comprises; a first source structure and a second source structure, formed on the probe face; a first detector structure, formed on the probe face, wherein a first distance is from the first detector structure to the first source structure, a second distance is from the first detector structure to the second source structure, and the first distance is greater than the second distance; a second detector structure, formed on the probe face, wherein a third distance is from the second detector structure to the first source structure, a fourth distance is from the second detector structure to the second source structure, and the fourth distance is greater than the third distance, and the first distance is the same as the fourth distance, and the second distance is the same as the third distance; a third detector structure, formed on the probe face, wherein a fifth distance is from the third detector structure to the first source structure, a sixth distance is from the third detector structure to the second source structure, the fifth distance is different from the first distance and the second distance, and the sixth distance is different from the first distance and the second distance; and a fourth detector structure, formed on the probe face, wherein a seventh distance is from the fourth detector structure to the first source structure, an eighth distance is from the fourth detector structure to the second source structure, the seventh distance is different from the first, second, and fifth distances, and the eighth distance is different from the first, second, and sixth distances, the first distance is greater than the second, third, fifth, sixth, seventh, and eighth distances, and the second distance is less than the fifth, sixth, seventh, and eight distances, and the processor is adapted to collect first information from the first detector structure in response to radiation emitted from the first source structure, the processor is adapted to collect second information from the second detector structure in response to radiation emitted from the first source structure, the first information is reflective of the tissue to be measured at a first depth below a surface of the tissue, the second information is reflective of the tissue to be measured at a second depth below the surface of the tissue, and the second depth is less than the first depth. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A handheld tissue oximeter device comprising:
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a housing comprising; a processor, contained within the housing; a memory, contained within the housing, wherein the memory is coupled to the processor; a display, coupled to the processor, wherein the display is visible from an exterior of the housing; and a tip portion of the housing; a sensor module, coupled to the processor, wherein the sensor module comprises a probe face that is retained by the tip portion at a relatively fixed position with respect to the housing and that is placed against and faces tissue to be measured; a first source structure and a second source structure, each formed on the probe face and arranged in a linear arrangement on a line; a first source diode and a second source diode, each coupled to the processor; a first radiation directing element and a second radiation directing element, optically coupled, respectively, to the first and second source diodes; a first optical fiber optically coupled between the first radiation directing element and the first source structure; a second optical fiber optically coupled between the second radiation directing element and the second source structure, wherein the first optical fiber transmits radiation emitted by the first source structure and passed through the first radiation directing element to the first source structure, and the second optical fiber transmits radiation emitted by the second source structure and passed through the second radiation directing element to the second source structure; a first detector structure, formed on the probe face, wherein a first distance is from the first detector structure to the first source structure, a second distance is from the first detector structure to the second source structure, and the first distance is greater than the second distance; a second detector structure, formed on the probe face, wherein a third distance is from the second detector structure to the first source structure, a fourth distance is from the second detector structure to the second source structure, and the fourth distance is greater than the third distance; a third detector structure, formed on the probe face, wherein a fifth distance is from the third detector structure to the first source structure, a sixth distance is from the third detector structure to the second source structure, the fifth distance is different from the first distance and the second distance, and the sixth distance is different from the first distance and the second distance; and a fourth detector structure, formed on the probe face, wherein a seventh distance is from the fourth detector structure to the first source structure, an eighth distance is from the fourth detector structure to the second source structure, the seventh distance is different from the first, second, and fifth distances, and the eighth distance is different from the first, second, and sixth distances, the first, second, third, and fourth detector structures are arranged asymmetrically about a point on the line on which the first and second source structures are arranged, the first distance is different from the second, third, and fourth distances, the second distance is different from the third and fourth distances, the third and fourth distances are different, the first distance is greater than the second, third, fifth, sixth, seventh, and eighth distances, and the second distance is less than the third, fifth, sixth, seventh, and eighth distances, a ninth distance is from the first source structure to the second source structure, and the ninth distance is greater than the first, second, fifth, sixth, seventh, and eighth distances, and the processor is adapted to collect first information from the first detector structure in response to radiation emitted from the first source structure, the processor is adapted to collect second information from the second detector structure in response to radiation emitted from the first source structure, the first information is reflective of the tissue to be measured at a first depth below a surface of the tissue, the second information is reflective of the tissue to be measured at a second depth below the surface of the tissue, and the second depth is less than the first depth. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification