Heating or cooling pad or glove with phase change material
First Claim
1. A heating or cooling pad for reducing pain or swelling, or increasing range of motion, the pad comprising:
- (a) phase change material having a melting point of between about 42 and 65 degrees Centigrade, or between about −
10 and 6 degrees Centigrade;
(b) a gel or viscous fluid carrier in which the phase change material is substantially evenly distributed; and
(c) a fluid-impermeable, conformable envelope surrounding the phase change material and the carrier.
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Accused Products
Abstract
A heating or cooling pad for reducing pain or swelling, or increasing range of motion, includes: (a) phase change material having a melting point of between about 42 and 65 degrees Centigrade, or between about −10 and 6 degrees Centigrade; (b) a gel or viscous fluid carrier in which the phase change material is relatively evenly distributed; and (c) a fluid-impermeable, conformable envelope surrounding the phase change material and the carrier. A preferred embodiment herein includes: (a) a fluid-impermeable, flexible, conformable envelope; (b) a mixture of from about 10 to about 75 weight % of alkanes having a carbon chain length of between 12 and 14 or 22 and 30, and from about 25 to about 90 weight % of a gel or viscous fluid carrier in which the alkanes are substantially evenly distributed, the mixture being sealed within the envelope; and (c) at least one layer of insulation adjacent to a first side of the envelope. The envelope is preferably sandwiched between comfortable, conformable layers of insulation.
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Citations
24 Claims
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1. A heating or cooling pad for reducing pain or swelling, or increasing range of motion, the pad comprising:
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(a) phase change material having a melting point of between about 42 and 65 degrees Centigrade, or between about −
10 and 6 degrees Centigrade;
(b) a gel or viscous fluid carrier in which the phase change material is substantially evenly distributed; and
(c) a fluid-impermeable, conformable envelope surrounding the phase change material and the carrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A glove, mitt or arm wrap for reducing pain or swelling, or increasing range of motion, comprising:
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(a) phase change material having a melting point of between about 42 and 65 degrees Centigrade, or between about −
10 and 6 degrees Centigrade;
(b) a gel or viscous fluid carrier in which the phase change material is substantially evenly distributed;
(c) a fluid-impermeable, flexible, conformable envelope surrounding the phase change material and the carrier;
(d) a comfortable, conformable inner layer on the inside of the glove or mitt; and
(e) at least one outer, protective, insulative layer on the outside of the glove or mitt;
wherein the envelope is sandwiched between the inner and outer layers on the upper or lower portion of the glove or mitt. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A glove, mitt or arm wrap for reducing pain or swelling, or increasing range of motion, comprising:
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(a) a fluid-impermeable, flexible, conformable envelope;
(b) a mixture of from about 10 to about 75 weight % of alkanes having a carbon chain length of between 12 and 14 or 22 and 30, and from about 25 to about 90 weight % of a gel or viscous fluid carrier in which the alkanes are substantially evenly distributed, the mixture being sealed within the envelope; and
(c) at least one layer of insulation adjacent to a first side of the envelope.
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Specification