Cooling body wrap with phase change material
OwnerCharles A. Lachenbruch, Richard I. Barnettinventors
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Abstract
A cooling body wrap for rapidly inducing hypothermia, includes: (a) a fluid-impermeable, flexible, conformable envelope; (b) a mixture of from about 20 to about 90 weight % of alkanes having a carbon chain length of between 10 and 14, and from about 10 to about 80 weight % of a gel or viscous fluid carrier in which the alkanes are relatively evenly distributed, the mixture being sealed within the envelope; (c) at least one layer of insulation adjacent to a first side of the envelope; and (d) fastening means for fastening the body wrap around a body part.
Claims20
A body wrap for rapidly cooling a part of the body, comprising
- (a) a phase change material having a melting point of 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, conformable, sealed envelope surrounding the phase change material and the carrier;
- (d) at least one layer of insulation adjacent to a first side of the envelope;
- (e) a fastener means for removably fastening the body wrap around a part of the body;
- and
- (f) a heat tube layer adjacent to an opposite, second side of the envelope, the heat tube layer being comprised of a plurality of heat tubes connected to one another.
A body wrap for rapidly inducing hypothermia, comprising
- (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 10 and 14 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;
- (c) at least one layer of insulation adjacent to a first side of the envelope;
- (d) a fastening means for fastening the body wrap around a part of the body;
- and
- (e) a heat tube layer adjacent to a second, opposite side of the envelope, the heat tube layer being comprised of a plurality of heat tubes connected to one another.
A cooling body wrap for rapidly inducing hypothermia, comprising:
- (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 10 and 14 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;
- (c) at least one layer of insulation adjacent to a first side of the envelope;
- (d) a fastening means for fastening the body wrap around a part of the body;
- and further comprising at least two adjacent heat tubes within the envelope, at least one of the heat tubes containing a refrigerant liquid.
A cooling body wrap for rapidly inducing hypothermia, comprising:
- (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 10 and 14 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;
- (c) at least one layer of insulation adjacent to a first side of the envelope;
- (d) a fastening means for fastening the body wrap around a part of the body;
- and further comprising a plurality of heat tubes within a second, gel or viscous fluid-filled envelope, at least one of the heat tubes containing a refrigerant liquid with a boiling point between about 0 and about 20 degrees Centigrade.
Dependencies are inferred from the claim text.