Apparatus for non-invasive measurement within a human or animal body
First Claim
1. An apparatus for non-invasive measurement within a human or animal body comprising an emitter means for emitting electromagnetic radiation into the human or animal body, first radiation detection means spaced a first distance from the emitter means for detecting scattered radiation from within the human or animal body, said first radiation detection means being of an arcuate form with a radius of curvature equal to the first distance, and at least one second detection means disposed a distance from the emitter means which is less than the first distance for detecting scattered radiation, wherein said at least one second detection means is disposed at a discrete location on a line of radius along a surface from the emitter means such that the line of radius on which a second detection means is disposed is at an angle to the line of radius on which the first detection means is disposed.
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Accused Products
Abstract
An apparatus for non-invasive measurement within a human or animal body with an emitter for emitting electromagnetic radiation into the human or animal body and a detector for detecting the scattered and attenuated radiation. The detector comprises a first principal detector and at least one second reference detector. The second detector is disposed a distance from the emitter which is less than the distance of the first principal detector from the emitter. The second detector is disposed on a line of radius from the emitter which forms an angle with the line of the radius from the emitter on which the first principal detector lies.
9 Citations
11 Claims
- 1. An apparatus for non-invasive measurement within a human or animal body comprising an emitter means for emitting electromagnetic radiation into the human or animal body, first radiation detection means spaced a first distance from the emitter means for detecting scattered radiation from within the human or animal body, said first radiation detection means being of an arcuate form with a radius of curvature equal to the first distance, and at least one second detection means disposed a distance from the emitter means which is less than the first distance for detecting scattered radiation, wherein said at least one second detection means is disposed at a discrete location on a line of radius along a surface from the emitter means such that the line of radius on which a second detection means is disposed is at an angle to the line of radius on which the first detection means is disposed.
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11. An apparatus for non-invasive measurement within a human or animal body comprising an emitter means for emitting electromagnetic radiation into the human or animal body, first radiation detection means spaced a first distance from the emitter means from 40 millimeters to 50 millimeters for detecting scattered radiation from within the human or animal body, and at least one second detection means disposed a distance from the emitter means which is less than the first distance for detecting scattered radiation, wherein said at least one second detection means is disposed at a discrete location on a line of radius along a surface from the emitter means such that the line of radius on which a second detection means is disposed is at an angle to the line of radius on which the first detection means is disposed.
Specification