Hot or cold chemical therapy pack
First Claim
1. A hot or cold chemical therapy pack, comprising:
- a first compartment containing a first reactant; and
a second compartment contained in said first compartment, said second compartment containing a second reactant and including a first end attached to a first end of said first compartment and a second end attached to a second end of said first compartment, said second compartment including a rupturable weak point or seam.
2 Assignments
0 Petitions
Accused Products
Abstract
A hot or cold chemical therapy pack (1) is provided that has two compartments (28, 30). One compartment (28) has a natural weak point (32) or seam (at 24 or 26) and is contained inside the other compartment (30). Each compartment contains a chemical reactant. In one embodiment, the outer compartment (30), which is made of a flexible, vinyl or plastic material, is arranged in a semi-collapsed configuration. Each end of the inner compartment (28) is fixedly attached to a respective end (24, 26) of the outer compartment (30). The pack (10) is chemically activated by pressing on, kneading, or twisting the outer compartment (30), or pulling on each end of the pack (10). The lateral, outward pressure caused by the pressing on, kneading, or twisting of the pack, or by the user'"'"'s pulling on the ends of the pack, is exerted at the rupturable seam (32) of the inner compartment (28). At a predetermined pressure, the natural weak point (32) or seam is ruptured and the reactant contents of the two compartments merge (34), which creates the heating (exothermic) or cooling (endothermic) chemical reaction. Consequently, the hot or cold chemical therapy pack (10) is more easily activated than existing chemical therapy packs, which makes this pack (10) more convenient to use.
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Citations
24 Claims
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1. A hot or cold chemical therapy pack, comprising:
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a first compartment containing a first reactant; and a second compartment contained in said first compartment, said second compartment containing a second reactant and including a first end attached to a first end of said first compartment and a second end attached to a second end of said first compartment, said second compartment including a rupturable weak point or seam. - View Dependent Claims (2, 3, 5, 6, 7, 10, 11, 12, 13, 14, 15)
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4. A hot or cold chemical therapy pack, comprising:
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a first compartment containing a first reactant; a second compartment contained in said first compartment, said second compartment containing a second reactant and including a first end attached to a first end of said first compartment and a second end attached to a second end of said first compartment, said second compartment including a rupturable weak point or seam; and wherein said seam is located at one of said attachments of said first and second compartments.
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8. A hot or cold chemical therapy pack, comprising:
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a first sheet of a generally rectangularly-shaped material; a second sheet of a generally rectangularly-shaped material, each sheet having opposing upper and lower surfaces bound together by two longitudinal and two transverse edge surfaces, peripherally sealed adjacent the edge surfaces and defining a generally rectangularly-shaped sealed pack having a first compartment; a rupturable compartment contained in the first compartment of said sealed pack and extending from one longitudinal seal to the other longitudinal seal; a first reactant contained in the first compartment of said sealed pack; and a second reactant contained in said rupturable compartment, said first and second reactants reacting exothermically or endothermically upon contact. - View Dependent Claims (9, 16, 17, 18, 20, 21, 22, 23, 24)
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19. A hot or cold chemical therapy pack, comprising:
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a first sheet of a generally rectangularly-shaped material; a second sheet of a generally rectangularly-shaped material, each sheet having opposing upper and lower surfaces bound together by two longitudinal and two transverse edge surfaces, peripherally sealed adjacent the edge surfaces and defining a generally rectangularly-shaped sealed pack having a first compartment; a rupturable compartment contained in the first compartment of said sealed pack and extending from one longitudinal seal to the other longitudinal seal; a first reactant contained in the first compartment of said sealed pack; a second reactant contained in said rupturable compartment, said first and second reactants reacting exothermically or endothermically upon contact; said rupturable compartment further comprising a rupturable weak point or seam; and wherein said seam is located at one of said one longitudinal seals.
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Specification