Devices, methods, and kits for non-invasive glucose measurement
First Claim
1. A skin patch for use with a glucose measurement device comprising:
- an adhesive material;
a collection layer for collecting sweat;
a sweat-permeable membrane configured to act as a barrier to epidermal contaminants and as a barrier to glucose brought to a skin surface via diffusion when the skin patch is in contact with the skin surface, wherein the sweat-permeable membrane comprises a liquid polymer that cures when exposed to oxygen and that is adapted to leave openings over sweat gland pores on the skin surface upon curing;
a detector configured to detect nanogram quantities of glucose in sweat; and
an interface layer.
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Accused Products
Abstract
Described are devices, methods, and kits for non-invasively measuring glucose. In general, the devices comprise skin patches for placement on a skin surface and measurement devices for measuring glucose collected in the patches. The patches may include an adhesive material, a collection layer, an interface layer, and a sweat-permeable membrane. The sweat-permeable membrane is configured to act as a barrier to epidermal contaminants and glucose brought to the skin surface via diffusion. In this way, non-correlatable skin surface glucose will not be measured. The patches may further include components to induce a local sweat response. The measurement device typically includes a display, a processor, and a measurement mechanism. The methods typically include the steps of wiping the skin surface with a wipe containing at least one solvent for removing glucose, placing a patch on a skin surface, and measuring glucose collected in the patch. Kits comprising the patch and measurement device are also described.
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Citations
24 Claims
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1. A skin patch for use with a glucose measurement device comprising:
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an adhesive material; a collection layer for collecting sweat; a sweat-permeable membrane configured to act as a barrier to epidermal contaminants and as a barrier to glucose brought to a skin surface via diffusion when the skin patch is in contact with the skin surface, wherein the sweat-permeable membrane comprises a liquid polymer that cures when exposed to oxygen and that is adapted to leave openings over sweat gland pores on the skin surface upon curing; a detector configured to detect nanogram quantities of glucose in sweat; and an interface layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification