Devices and methods for temperature determination
First Claim
Patent Images
1. A temperature determination device, comprising:
- a patch defining a first surface and a second surface opposite the first surface, wherein the first surface is removably attachable to skin of a subject at a first location of the subject'"'"'s skin;
a first temperature sensor connected to the patch and configured to detect a temperature of the first surface;
a second temperature sensor connected to the patch and configured to detect a temperature of the second surface; and
at least one additional electronic sensing component connected to the patch and configured to determine a metric, other than temperature, indicative of a first amount of blood flow proximate the first location, wherein a controller in communication with the device is programmed to;
receive a first signal from the at least one additional electronic sensing component indicative of the metric as determined by the at least one additional electronic sensing component while the patch is disposed at the first location,compare the metric to a threshold corresponding to the metric,determine, based at least partly on comparing the metric to the threshold, that the patch should be repositioned to a second location of the subject'"'"'s skin characterized by a second amount of blood flow less than the first amount, wherein determining that the patch should be repositioned includes;
determining that the metric exceeds the threshold, andoperating an operator interface device to indicate that the patch should be repositioned,receive a second signal from the at least one additional electronic sensing component indicative of the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location,determine, based at least partly on the second signal, that the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location is less than or equal to the threshold, andcalculate, at least partly in response to determining that the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location is less than or equal to the threshold, a core temperature of the subject based on the temperature of the first surface, the temperature of the second surface, and an estimated thermal resistance of the subject'"'"'s skin.
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Abstract
A temperature determination method includes temporarily contacting a forehead of a subject with a first surface of a removable patch, and exposing a second surface of the patch opposite the first surface to ambient conditions. The method also includes sensing a temperature of the first surface of the patch while the first surface is in contact with the forehead at a first location thereon, sensing a temperature of the second surface of the patch, and calculating a sub-skull temperature of the subject based on the sensed temperatures of the first and second surface.
23 Citations
26 Claims
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1. A temperature determination device, comprising:
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a patch defining a first surface and a second surface opposite the first surface, wherein the first surface is removably attachable to skin of a subject at a first location of the subject'"'"'s skin; a first temperature sensor connected to the patch and configured to detect a temperature of the first surface; a second temperature sensor connected to the patch and configured to detect a temperature of the second surface; and at least one additional electronic sensing component connected to the patch and configured to determine a metric, other than temperature, indicative of a first amount of blood flow proximate the first location, wherein a controller in communication with the device is programmed to; receive a first signal from the at least one additional electronic sensing component indicative of the metric as determined by the at least one additional electronic sensing component while the patch is disposed at the first location, compare the metric to a threshold corresponding to the metric, determine, based at least partly on comparing the metric to the threshold, that the patch should be repositioned to a second location of the subject'"'"'s skin characterized by a second amount of blood flow less than the first amount, wherein determining that the patch should be repositioned includes; determining that the metric exceeds the threshold, and operating an operator interface device to indicate that the patch should be repositioned, receive a second signal from the at least one additional electronic sensing component indicative of the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location, determine, based at least partly on the second signal, that the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location is less than or equal to the threshold, and calculate, at least partly in response to determining that the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location is less than or equal to the threshold, a core temperature of the subject based on the temperature of the first surface, the temperature of the second surface, and an estimated thermal resistance of the subject'"'"'s skin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of manufacturing a measurement device, comprising:
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providing a patch defining a first surface and a second surface opposite the first surface, wherein the first surface is removably attachable to skin of a subject at a first location of the subject'"'"'s skin; operably connecting a first temperature sensor to the patch proximate the first surface, the first temperature sensor being positioned to detect a temperature of the first surface; operably connecting a second temperature sensor to the patch proximate the second surface, the second temperature sensor being positioned to detect a temperature of the second surface; operably connecting at least one additional electronic sensing component to the patch, the at least one additional electronic sensing component being configured to determine a metric, other than temperature, indicative of a first amount of blood flow proximate the first location; and operably connecting the first temperature sensor, the second temperature sensor, and the at least one additional electronic sensing component to a controller, wherein the controller is programmed to; receive a first signal from the at least one additional electronic sensing component indicative of the metric as determined by the at least one additional electronic sensing component while the patch is disposed at the first location, compare the metric to a threshold corresponding to the metric, determine, based at least partly on comparing the metric to the threshold, that the patch should be repositioned to a second location of the subject'"'"'s skin characterized by a second amount of blood flow less than the first amount, wherein determining that the patch should be repositioned includes; determining that the metric exceeds the threshold, and operating an operator interface device to indicate that the patch should be repositioned, receive a second signal from the at least one additional electronic sensing component indicative of the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location, determine, based at least partly on the second signal, that the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location is less than or equal to the threshold, and calculate, at least partly in response to determining that the metric as determined by the at least one additional electronic sensing component after the patch has been repositioned to the second location is less than or equal to the threshold, a core temperature of the subject based on the temperature of the first surface, the temperature of the second surface, and an estimated thermal resistance of the subject'"'"'s skin. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of determining a core temperature of a subject, comprising:
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removably disposing a first surface of a patch at a first skin location on skin of the subject; exposing a second surface of the patch opposite the first surface to ambient conditions; determining a first temperature of a first location on the patch while the first surface is disposed on the skin at the first skin location; determining a second temperature of a second location on the patch while the first surface is disposed on the skin at the first skin location, the first location being different than the second location; determining a first value of a metric, other than temperature, indicative of a first amount of blood flow proximate the first skin location; comparing the first value of the metric to a threshold; determining, with a controller associated with the device and based at least partly on comparing the first value of the metric to the threshold, the patch should be repositioned to a second skin location on the subject'"'"'s skin characterized by a second amount of blood flow less than the first amount, wherein the controller is programmed to calculate the core temperature of the subject; operating an operator interface to indicate that the patch should be repositioned; determining a second value of the metric, the second value of the metric being indicative of a second amount of blood flow proximate the second skin location after the patch has been repositioned to the second skin location; comparing the second value of the metric to the threshold; determining, with the controller and based at least partly on comparing the second value of the metric to the threshold, that the patch may remain at the second skin location; and calculating, with the controller and at least partly in response to determining that the patch may remain at the second skin location, the core temperature of the subject, wherein the core temperature is calculated based on the first temperature, the second temperature, and an estimated thermal resistance of the subject'"'"'s skin, wherein the first and second temperatures are determined without contacting the patch. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification