REINFORCED THERAPEUTIC WRAP AND METHOD
A therapy wrap for treatment of at least a portion of an animate body having improved kink resistance. The therapy wrap may be selectively reinforced for improved kink resistance in only a portion of the wrap. The reinforcement may decrease the kink radius. The wrap may include a kink reducer in all or only a selected kink-prone region. The kink reducer may be selectively configured attachment points or spot welds. The therapy wrap may include a reinforcement layer of one or more discrete reinforcement members. The wrap may be formed by pre-tensioning the material layers while forming the fluid bladder and/or gas pressure bladder. The therapy wrap may be adapted to compensate for conditions that normally cause kinking of the wrap or buckling of the fluidic channels. Also disclosed are methods of manufacturing the wrap and methods of administering a temperature-controlled treatment to an anatomical body part.
1 . A therapy wrap for providing heating or cooling to an anatomical body part, the therapy wrap comprising:
a flexible fluid bladder for containing a heat exchange medium, the fluid bladder including an inlet, an outlet, a fluid flowpath connecting the inlet and the outlet, the fluid bladder composed of a first layer of a flexible material and a second layer of a flexible material; and
a gas pressure bladder overlaying the fluid bladder for applying a compressive force to a portion of the fluid bladder in contact with the body part;
wherein at least a portion of the first or second layer of material is tensioned by a fastener for holding the therapy wrap in a desired location on an animate body to increase resistance to kinking of the fluid bladder in a region of the flexible fluid bladder prone to kinking during use; and
wherein the fastener comprises:
a first section projecting in a direction away from a side edge of at least one of the fluid bladder or the gas pressure bladder; and
a second section positioned over at least one of the fluid bladder or the gas pressure bladder such that as the therapy wrap is wrapped around the animate body, the first section coupled to the second section to provide an inwardly directed compressive force.
2 . The therapy wrap of claim 1 , wherein the tensioned portion of the first or second layer is pre-tensioned such that the portion of the first or second layer of material is pretensioned during manufacturing of the corresponding flexible fluid bladder or gas pressure bladder.
3 . The therapy wrap of claim 1 , wherein the tensioned portion of the first or second layer is tensioned by heating.
4 . The therapy wrap of claim 1 , wherein the tensioned portion of the first or second layer is tensioned by stretching.
5 . The therapy wrap of claim 1 , wherein the flexible material of the first layer overlays the flexible material of the second layer and are sealed along a common border.
6 . The therapy wrap of claim 5 , wherein the portion of the flexible material of the first layer is tensioned and a corresponding portion of the flexible material of the second layer is not tensioned.
7 . The therapy wrap of claim 6 , wherein the fluid bladder forms a curved shape in a direction towards the flexible material of the first layer.
8 . The therapy wrap of claim 5 , wherein the gas pressure bladder is composed of a third layer of a flexible material,
wherein the flexible material of the third layer is sealed along the common border to form the gas pressure bladder.
9 . The therapy wrap of claim 1 , wherein the fluid bladder includes a reinforcement member positioned and dimensioned to increase resistance to kinking of the fluid bladder in a region of the fluid bladder prone to kinking during use.
10 . The therapy wrap of claim 9 , wherein the reinforcement member includes a plurality of attachment points connecting walls of the bladder and defining a plurality of fluidic channels in the flowpath.
11 . The therapy wrap of claim 10 , wherein the reinforcement member is secured within the gas pressure bladder with a weld that is aligned with one of the attachment points.
12 . The therapy wrap of claim 10 , wherein the plurality of attachment points comprises dots and fences defining the plurality of fluidic channels in the fluid bladder, the plurality of dots dividing the fluid flowpath into the plurality of fluidic channels.
13 . The therapy wrap of claim 9 , wherein a size and shape of the reinforcement member is defined at least in part by one or more interior fences disposed within the fluid bladder or gas pressure bladder.
14 . The therapy wrap of claim 9 , wherein the reinforcement member is a rigid member selected from a group consisting of a wire, an exoskeleton, a ribbon, a sheet, a substrate and a combination of the same.
15 . The therapy wrap of claim 1 , wherein the portion of the flexible material of the first or second layer is tensioned by a fastener for holding the therapy wrap in a desired location on an animate body.
16 . The therapy wrap of claim 15 , wherein the fastener comprises a first section, the first section projecting in a direction away from a side edge of at least one of the fluid bladder or the gas pressure bladder.
17 . The therapy wrap of claim 15 , wherein the portion of the flexible material of the first or second layer is further tensioned by a second fastener for holding the therapy wrap in a desired location on an animate body.
18 . The therapy wrap of claim 17 , wherein the fastener and the second fastener each are composed of a hook-and-loop material.
19 . The therapy wrap of claim 17 , wherein the second fastener is spaced apart from the fastener along an edge of the therapy wrap.
20 . The therapy wrap of claim 15 , wherein the fastener is provided on a sleeve sized and configured to receive the fluid bladder and the gas pressure bladder,
wherein, when the fluid bladder and the gas pressure bladder are received within the sleeve, the fastener is provided outside a seam forming the sleeve.