Geometry of a Transcutaneous Sensor
First Claim
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1. A transcutaneous electromagnetic sensor comprising:
- an emitter including an emitter end face configured to emit a first electromagnetic radiation signal entering Animalia tissue through a stratum corneum, the emitter guiding the first electromagnetic radiation signal along a first path intersecting the emitter end face at a first angle; and
a detector including a detector end face configured to collect a second electromagnetic radiation signal exiting the Animalia tissue through the stratum corneum, the detector guiding the second electromagnetic radiation signal along a second path intersecting the detector end face at a second angle, and the second electromagnetic radiation signal including a portion of the first electromagnetic radiation signal that is at least one of reflected, scattered and redirected from the Animalia tissue;
wherein the portion of the first electromagnetic radiation signal transitions to the second electromagnetic radiation signal in the Animalia tissue at a depth below the stratum corneum, the depth being dependent on at least (i) spacing between the emitter and detector end faces; and
(ii) relative magnitude of the first and second angles.
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Abstract
A transcutaneous electromagnetic signal sensor includes an emitter and a detector. The emitter includes an emitter end face configured to emit a first electromagnetic radiation signal that enters Animalia tissue. The detector includes a detector end face configured to collect a second electromagnetic radiation signal that exits the Animalia tissue. The second electromagnetic radiation signal includes a portion of the first electromagnetic radiation signal that is at least one of reflected, scattered and redirected from the Animalia tissue. The second electromagnetic radiation signal monitors anatomical changes over time in the Animalia tissue.
12 Citations
20 Claims
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1. A transcutaneous electromagnetic sensor comprising:
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an emitter including an emitter end face configured to emit a first electromagnetic radiation signal entering Animalia tissue through a stratum corneum, the emitter guiding the first electromagnetic radiation signal along a first path intersecting the emitter end face at a first angle; and a detector including a detector end face configured to collect a second electromagnetic radiation signal exiting the Animalia tissue through the stratum corneum, the detector guiding the second electromagnetic radiation signal along a second path intersecting the detector end face at a second angle, and the second electromagnetic radiation signal including a portion of the first electromagnetic radiation signal that is at least one of reflected, scattered and redirected from the Animalia tissue; wherein the portion of the first electromagnetic radiation signal transitions to the second electromagnetic radiation signal in the Animalia tissue at a depth below the stratum corneum, the depth being dependent on at least (i) spacing between the emitter and detector end faces; and
(ii) relative magnitude of the first and second angles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A sensor to aid in diagnosing at least one of infiltration and extravasation in Animalia tissue, the sensor comprising:
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an emitter including an emitter end face configured to emit a first electromagnetic radiation signal entering the Animalia tissue; a detector including a detector end face configured to collect a second electromagnetic radiation signal exiting the Animalia tissue, the second electromagnetic radiation signal including a portion of the first electromagnetic radiation signal that is at least one of reflected, scattered and redirected from the Animalia tissue, and magnitude changes of the second electromagnetic radiation signal corresponding to anatomical changes over time in the Animalia tissue; wherein each individual point of the emitter end face is spaced a distance from each individual point of the detector end face such that the first electromagnetic radiation signal transitions to the second electromagnetic radiation signal at a depth of penetration into the Animalia tissue between approximately 1 millimeter and approximately 6 millimeters. - View Dependent Claims (12, 13, 14, 15)
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16. A sensor to aid in diagnosing at least one of infiltration and extravasation in Animalia tissue, the sensor comprising:
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an emitter including an emitter end face configured to emit a first electromagnetic radiation signal entering the Animalia tissue, the emitter guiding the first electromagnetic radiation signal along a first path intersecting the emitter end face at a first angle; and a detector including a detector end face configured to detect a second electromagnetic radiation signal exiting the Animalia tissue, the detector guiding the second electromagnetic radiation signal along a second path intersecting the detector end face at a second angle, the second electromagnetic radiation signal including a portion of the first electromagnetic radiation signal that is at least one of reflected, scattered and redirected from the Animalia tissue, and magnitude changes of the second electromagnetic radiation signal corresponding to anatomical changes over time in the Animalia tissue; wherein the first and second angles are configured for the first electromagnetic radiation signal to transition to the second electromagnetic radiation signal at a depth of penetration into the Animalia tissue between approximately 1 millimeter and approximately 6 millimeters. - View Dependent Claims (17, 18, 19, 20)
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Specification