Therapeutic hypothermia instrument
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United States of America Patent
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-
Nov 20, 1984
Grant Date -
N/A
app pub date -
Dec 9, 1982
filing date -
Dec 9, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An implantable hypothermia instrument for the in-situ treatment of oncological disorders includes a cylindrical casing terminating at a first end in a concave tumor-abutting portion of a thermoconductive material which is thermally adjacent the cold junction of a cascaded three-component solid state cooler and shaped to partially surround the target tissue in order to provide a convergent freezing effect. The cooler comprises a thermoelectric first cooling section, a thermomagnetic second cooling section and an Ettingshausen third cooling section connected thermally in parallel to afford a stepped temperature reduction across a wide thermal gradient and to provide a temperature level, freezing rate and repetitive freeze/thaw cycles sufficient for tumor necrosis.
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