Optical probe for optical imaging system
First Claim
1. A device comprising:
- a first source structure, the first source structure being positioned to provide a first beam of light;
a second source structure, the second source structure being positioned to provide a second beam of light, anda detector arrangement including a plurality of detector structures, the detector arrangement being positioned to receive the first beam of light after the first beam of light has been transmitted through a tissue, and to receive the second beam of light after the second beam of light has been transmitted through the tissue,wherein the detector arrangement is arranged to define a first axis that passes through a centerpoint of each of the detector structures, a centerpoint of the first source structure to the first axis defines a first line segment, a centerpoint of the second source structure to the first axis defines a second line segment, which is parallel to the first line segment, and lengths of the first and second line segments are not equal.
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0 Petitions
Accused Products
Abstract
Methods and apparatus for monitoring oxygen saturation levels in tissue are disclosed. According to one aspect of the present invention, a sensor arrangement for use in an optical imaging system includes a first source structure, a second source structure, and a detector arrangement. The first source structure provides a first beam of light and the second source structure provides a second beam of light. The detector arrangement includes detector structures that have centerpoints, and receives the first and second beams of light after the first and second beams of light are reflected off of an external surface. The detector arrangement is arranged to define a first axis that passes through the centerpoint of each detector structure, and a distance from a centerpoint of the first source structure to the first axis is not equal to a distance from a centerpoint of the second source structure to the first axis.
90 Citations
71 Claims
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1. A device comprising:
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a first source structure, the first source structure being positioned to provide a first beam of light; a second source structure, the second source structure being positioned to provide a second beam of light, and a detector arrangement including a plurality of detector structures, the detector arrangement being positioned to receive the first beam of light after the first beam of light has been transmitted through a tissue, and to receive the second beam of light after the second beam of light has been transmitted through the tissue, wherein the detector arrangement is arranged to define a first axis that passes through a centerpoint of each of the detector structures, a centerpoint of the first source structure to the first axis defines a first line segment, a centerpoint of the second source structure to the first axis defines a second line segment, which is parallel to the first line segment, and lengths of the first and second line segments are not equal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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9. A device comprising:
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a first source structure, the first source structure being positioned to provide a first beam of light; a second source structure, the second source structure being positioned to provide a second beam of light; and a detector arrangement, including a plurality of detector structures, each comprising optical fiber, the detector arrangement being positioned to receive the first beam of light after the first beam of light has been transmitted through a tissue, and to receive the second beam of light after the second beam of light has been transmitted through the tissue, wherein the first source structure, the second source structure, a first detector structure, and a second detector structure define vertices of a convex quadrilateral, a first side of the quadrilateral between the first source structure and second source structure is greater in length than a second side of the quadrilateral between the first detector structure and the second detector structure, and a third side of the quadrilateral between the first source structure and first detector structure is greater in length than a fourth side of the quadrilateral between the second source structure and the second detector structure. - View Dependent Claims (10, 11, 12, 13, 14, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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15. A method of measuring oxygen saturation of a tissue comprising:
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positioning a sensor head to face toward the tissue, wherein the sensor head comprises a first source structure, a second source structure, a first detector structure, and a second detector structure that define vertices of a convex quadrilateral, a first side of the quadrilateral between the first source structure and first detector structure has a different length than a second side of the quadrilateral between the second source structure and second detector structure, and the first and second detector structures comprise optical fiber; transmitting light from a system unit through the first source structure and the second source structure into the tissue; receiving light transmitted through the tissue and the detector structures at photodetectors in the system unit, the received light including attenuation characteristics; and processing the received light using the system unit. - View Dependent Claims (16, 42, 43, 44, 45)
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17. A probe, the probe being adapted for use as a part of a medical device system for measuring oxygen levels in a tissue, the probe comprising:
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a coupling interface, the coupling interface being adapted to allow the probe to be coupled to a plurality of light sources and a plurality of photodetectors, wherein the light sources and photodetectors are external to the probe; and a sensor head comprising a first source structure, a second source structure, and a detector arrangement, the first source structure and the second source structure being arranged to be coupled to the plurality of light sources via the coupling interface, the detector arrangement being arranged to be coupled to the plurality of photodetectors through the coupling interface, wherein first and second detector structures of the detector arrangement and the source structures have the same cross-sectional area. - View Dependent Claims (18, 19, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A device comprising:
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a first source structure; a second source structure; a first detector structure comprising optical fiber; and a second detector structure comprising optical fiber, wherein the first source structure, second source structure, first detector structure, second detector structure define vertices of a convex quadrilateral, and a first side of the quadrilateral between the first source structure and first detector structure is different in length from a second side of the quadrilateral between the second source structure and the second detector structure. - View Dependent Claims (58, 59, 60)
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56. A device comprising:
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a first source structure; a second source structure; a first detector structure comprising optical fiber; and a second detector structure comprising optical fiber, wherein the first source structure, second source structure, first detector structure, second detector structure define vertices of a convex quadrilateral, and a first side of the quadrilateral between the first source structure and second source structure is different in length from a second side of the quadrilateral between the first detector structure and the second detector structure. - View Dependent Claims (61, 62, 63)
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57. A device comprising:
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a first source structure; a second source structure; a first detector structure comprising optical fiber; a second detector structure comprising optical fiber, wherein 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. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71)
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Specification