Method and apparatus to sense hydration level of a person
First Claim
1. A hydration sensor for measuring the hydration level of a user based on the user'"'"'s saliva, comprising:
- a digital timing device providing a timing indication; and
a disposable sensing element including;
a piece of water-permeable material having a first side and a second side, with a chemical compound coupled to the first side;
a first piece of water-impermeable material coupled to the first side of the water-permeable material, over the chemical compound; and
a second piece of water-impermeable material coupled to the second side of the piece of water-permeable material,wherein the disposable sensing element does not include an electronic device,wherein the disposable sensing element includes at least one aperture that allows saliva in the mouth of the user to reach the water-permeable material, and to the chemical compound via the water-permeable material,wherein the chemical compound is configured to change color of at least a portion of the water-permeable material due to contact with saliva and the change is observable from at least a portion of one piece of the water-impermeable material,wherein at least a portion of the disposable sensing element is configured to be placed in the mouth of the user to measure the hydration level of the user, and the disposable sensing element may be disposed after the element has been placed in the mount of a user to measure hydration level, andwherein the hydration sensor further includes an indicator, the indicator to provide an indication for the hydration level of the user, based on time measurement regarding color change of the at least a portion of the water-permeable material, after the disposable sensing element is placed in the mouth of the user, via the timing indication.
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Abstract
A hydration sensor or sensing element configured to measure the hydration level of a user is disclosed. The sensing element can include a water-permeable material positioned in between two water-impermeable material. The sensing element can be coupled to a bottle of fluid, or a carrier with a timer. The sensing element can be incorporated into a handheld device. The sensing element can be a disposable element, an element applicable for more than one-time use, or a re-usable element. The sensing element or sensor can be calibrated for a specific user or a group of users. One or more additional sensors that do not measure hydration level of the user can be coupled to a hydration sensing element to determine the amount of fluid consumption for the user in different conditions.
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Citations
16 Claims
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1. A hydration sensor for measuring the hydration level of a user based on the user'"'"'s saliva, comprising:
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a digital timing device providing a timing indication; and a disposable sensing element including; a piece of water-permeable material having a first side and a second side, with a chemical compound coupled to the first side; a first piece of water-impermeable material coupled to the first side of the water-permeable material, over the chemical compound; and a second piece of water-impermeable material coupled to the second side of the piece of water-permeable material, wherein the disposable sensing element does not include an electronic device, wherein the disposable sensing element includes at least one aperture that allows saliva in the mouth of the user to reach the water-permeable material, and to the chemical compound via the water-permeable material, wherein the chemical compound is configured to change color of at least a portion of the water-permeable material due to contact with saliva and the change is observable from at least a portion of one piece of the water-impermeable material, wherein at least a portion of the disposable sensing element is configured to be placed in the mouth of the user to measure the hydration level of the user, and the disposable sensing element may be disposed after the element has been placed in the mount of a user to measure hydration level, and wherein the hydration sensor further includes an indicator, the indicator to provide an indication for the hydration level of the user, based on time measurement regarding color change of the at least a portion of the water-permeable material, after the disposable sensing element is placed in the mouth of the user, via the timing indication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A disposable hydration sensing element for measuring the hydration level of a user based on the user'"'"'s saliva, comprising:
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a piece of water-permeable material having a first side and a second side, with a chemical compound coupled to the first side; a first piece of water-impermeable material coupled to the first side of the water-permeable material, over the chemical compound; and a second piece of water-impermeable material coupled to the second side of the piece of water-permeable material, wherein the disposable hydration sensing element does not include an electronic device, wherein the disposable hydration sensing element includes at least one aperture that allows saliva in the mouth of the user to reach the water-permeable material, and to the chemical compound via the water-permeable material, wherein the chemical compound is configured to change color of at least a portion of the water-permeable material due to contact with saliva and the change is observable from at least a portion of one piece of the water-impermeable material, wherein at least a portion of the disposable sensing element is configured to be placed in the mouth of the user to measure the hydration level of the user, wherein the disposable hydration sensing element further includes an indicator, the indicator to provide an indication for the hydration level of the user, based on an amount of time regarding color change of the at least a portion of the water-permeable material, after the disposable hydration sensing element is placed in the mouth of the user, and wherein the hydration sensing element may be disposed after the element has been placed in the mouth of a user to measure hydration level. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification