Surgery – Truss – Pad
Patent
1976-09-30
1979-10-16
Michell, Robert W.
Surgery
Truss
Pad
62199, 62259, A61F 700
Patent
active
041709985
ABSTRACT:
An improved portable refrigeration apparatus for cooling a limb of a patient or the like, and which includes at least one flexible pad adapted to be wrapped around a bodily limb and which incorporates flexible tubing serving as an evaporator. A separate auxiliary evaporator is positioned downstream of the pad to insure that all of the refrigerant is evaporated before returning to the compressor. Also, there is provided a temperature control system for the pad which includes a by-pass conduit which by-passes the pad, and a temperature controlled valve for selectively opening and closing the by-pass conduit, and so that the refrigerant will flow concurrently through the by-pass conduit and the pad when the valve is opened. In one embodiment, a positive pressure device is provided for maintaining a selected refrigerant pressure in the pad and to thereby prevent a possible vacuum in the tubing of the pad, and in addition, there may be provided a resistive heating element at the pad so that the apparatus may be selectively used for heating the limb of a patient.
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Chattanooga Pharmacal Company
Michell Robert W.
Rose Arthur S.
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