Method and system for measuring perspiration
Inventors
Ghaffari, Roozbeh • HUPPERT, Gilbert Lee • Murphy, Brian • Kacyvenski, Isaiah
Assignees
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Publication Number
US-11154235-B2
Publication Date
2021-10-26
Expiration Date
Abstract
A perspiration sensing system includes a sensor patch and a smart device. The sensor patch includes one or more perspiration sensing portions. The one or more perspiration sensing portions include an inlet having a predefined size to receive perspiration from a predefined number of sweat glands and an outlet for reducing back pressure. At least one perspiration sensing portion includes a channel having a colorimetric sensing material that changes color when exposed to perspiration. At least one perspiration sensing portion includes a colorimetric assay in a substrate that changes color when exposed to biochemical components of perspiration. The system further includes a smart device having a camera that can take a picture of the sensor patch and determine the volume, rate of perspiration, and/or biochemical components of the perspiration from the one or more perspiration sensing portions.
Core Innovation
The invention is directed to a sensor patch that includes at least one perspiration sensing portion including at least one colorimetric material that changes color in response to perspiration. The perspiration sensing portion includes a perspiration volume sensing channel having an inlet port and a vent port, thereby enabling sensing tied to perspiration volume and sensing progression through the channel.
The invention further includes a near field communication circuit and a near field communication antenna on the sensor patch. The near field communication circuit is configured to cause a smart device to execute a function on the smart device based on data sent from the near field communication circuit in response to interrogation of the near field communication circuit by the smart device.
The perspiration sensing portion is optionally expanded to include perspiration component sensing chambers, each chamber performing a colorimetric assay for perspiration components. In this arrangement, multiple colorimetric assays can change color in response to different biological components of perspiration, and the patch supports sensing arrangements intended to reduce backpressure during filling, using inlet ports and vent ports for the sensing chambers.
Claims Coverage
The independent claim coverage is focused on an NFC-enabled sensor patch with colorimetric perspiration sensing, including a perspiration volume sensing channel having inlet and vent ports. The inventive features in the independent claim are 3.
NFC-enabled colorimetric perspiration sensor patch
A sensor patch comprising at least one perspiration sensing portion including at least one colorimetric material that changes color in response to perspiration, and a near field communication circuit and a near field communication antenna.
Smart-device function based on NFC interrogation data
The near field communication circuit is configured to cause a smart device to execute a function on the smart device based on data sent from the near field communication circuit in response to interrogation of the near field communication circuit by the smart device.
Perspiration volume sensing channel with inlet and vent ports
The at least one perspiration sensing portion comprises a perspiration volume sensing channel including an inlet port and a vent port.
Overall, the claim coverage centers on an NFC circuit and antenna in a sensor patch combined with colorimetric perspiration-responsive sensing, specifically using a perspiration volume sensing channel with an inlet port and a vent port, and enabling a smart device to execute a function based on NFC-interrogation data.
Stated Advantages
Documented Applications
No documented applications found
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