DEVICES FOR INTEGRATED, REPEATED, PROLONGED, AND/OR RELIABLE SWEAT STIMULATION AND BIOSENSING
First Claim
1. An apparatus to measure or collect sweat over an extended period of time, comprising:
- at least one sweat stimulation pad;
a timing circuit adapted to selectively activate and deactivate said at least one sweat stimulation pad for one or more limited periods of time.
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Accused Products
Abstract
A sweat sensing device includes a plurality of sweat collection pads communicating with a sensor. Each of the pads is activated by a timing circuit which allows one or more of the pads to be activated at a selected time and subsequent deactivated after a defined period of time. This allows for selective collection of sweat from a plurality of pads over a prolonged period of time. An impedance measuring circuit can be employed to determine if one or more of the pads becomes disconnected, in order to avoid irritation. Further, the devices can use a common microfluidic device which both transports sweat activating substance, such as pilocarpine, to the surface of the skin and directs sweat away from the skin to a sensing device.
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Citations
30 Claims
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1. An apparatus to measure or collect sweat over an extended period of time, comprising:
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at least one sweat stimulation pad; a timing circuit adapted to selectively activate and deactivate said at least one sweat stimulation pad for one or more limited periods of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17)
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11. A method of generating and monitoring sweat over a prolonged period of time comprising:
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electrically generating sweat at a plurality of separate discrete locations on a skin surface; wherein separate locations are activated at a plurality of time periods and generated sweat from each location is directed to one or more sensors. - View Dependent Claims (12, 13)
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18. A sweat collector including an electrical stimulator and an electrical sensor adapted to detect inadequate skin contact to prevent burns.
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19. A sweat stimulating and transport device capable of both transporting sweat away from the skin and transporting sweat-stimulating substances to the skin comprising:
a sweat stimulating component and at least one additional component, wherein the additional component is at least one of a sweat transporting component, a shared microfluidic component, and a sensor. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 29, 30)
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28. A sweat stimulating and sensing device comprising:
at least one of a sweat-stimulating substance, a substance to reduce irritation, inflammation, or pain, caused by said sweat stimulation and a sweat reducing substance.
Specification