Disposable elastic thermal back wrap
AssigneeThe Procter & Gamble Company
InventorsLeane Kristine Davis, Ronald Dean Cramer, William Robert Ouellette, Dawn Michele Kimble, Amy Michelle Martini
Life of this patent
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Abstract
The present invention relates to disposable thermal back wraps having one or more thermal packs comprising a plurality of heat cells, wherein heat is applied to specific areas of the user's back, for pain relief. More particularly, the present invention relates to disposable elastic thermal back wraps having good conformity to user's back which provides consistent, convenient and comfortable heat application.
Claims54
A disposable thermal back wrap comprising:
- a) at least one substantially rectangular piece of flexible material having a first end, a second end, and one or more elastic portions therebetween said first end and said second end wherein said elastic portion is stretchable along a longitudinal axis of said piece of flexible material;
- b) one or more thermal packs, said thermal pack having a unified structure comprising at least one continuous layer of a semirigid material having a tensile strength of about 0.7 g/mm.sup.2, or greater, and at least two-dimensional drape at a temperature of about 25.degree. C., and wherein said material has a tensile strength, at a temperature of about 35.degree. C. or greater, substantially less than said tensile strength of said material at about 25.degree. C., and having a plurality of individual heat cells spaced apart and fixed within or to said unified structure of said thermal pack;
- and
- c) a fastening means in order to hold said thermal back wrap around said user's torso.
A disposable thermal back wrap comprising at least one thermal pack having a unified structure comprising at least one continuous layer of material and a plurality of individual heat cells placed into positions fixed within or to said unified structure of said thermal pack which are sufficiently close and relative to each other, so as to block some or all possible axes across said at least one continuous layer, which otherwise would have passed uninterrupted between said heat cells, through said thermal pack, or select regions thereof.
Dependencies are inferred from the claim text.