| 摘要 |
A thermal pack (10) for therapeutic treatment of a mammal that includes a bladder (12, 4) and a separator element insert (22). The bladder (12, 14) is formed of a pair of superposed sheets (12, 14) of flexible, heat conductive liquid impermeable polyurethane material and includes an inlet (18) and an outlet (20). The sheets (12, 14) are welded together at a central spine (17) and along a series of branches (16) so as to provide a turning, tortuous fluid passageway therein. The separator element insert (22) is received within the fluid passageway and provides a fluid conveying track that extends throughout the fluid passageway from the inlet (18) to the outlet (19) to maintain the sheets (12, 14) in spaced apart relationship to mitigate restrictions in fluid flow when the pack (10) is flexed out of the plane of the sheets (12, 14). The separator element insert (22) includes a series of deflector ribs (36, 38, 40, 42, 44) along the fluid conveying track that deflect fluid flow away from the separator element insert (22) and into the fluid passage way along at each turn of the fluid passageway. |
| 主权项 |
1. A thermal pack for therapeutic treatment of a mammal, the pack comprising a flexible, heat conductive liquid impermeable bladder and a separator element, the bladder comprising an inlet, an outlet and a pair of superposed sheets secured together so as to provide a turning fluid passageway therein, the separator element being received within the fluid passageway and comprising a fluid conveying track that extends throughout the fluid passageway substantially from the inlet to the outlet to maintain the superposed sheets in spaced apart relationship at least in the vicinity of the track to mitigate restrictions in the fluid flow through the passageway when the pack is flexed, in use, out of the plane of the superposed sheets, wherein the separator element comprises one or more deflectors along the fluid conveying track that deflect fluid flow away from the separator element and/or into the fluid passageway along at least one of the turns of the fluid passageway.
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