Electronic cryogenic surgical probe apparatus and method
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United States of America Patent
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-
May 4, 1993
Grant Date -
N/A
app pub date -
May 13, 1991
filing date -
May 13, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermoelectric cryoprobe for the topical treatment of neoplasms by freezing. The cryoprobe comprises a plurality of stacked thermoelectric modules coupled to a distal treatment tip through a heat pipe. Heat is dissipated by a heat exchanger system. An external control unit is provided which serves as a source of DC power for the hand-held cryoprobe and contains a control system for controlling the thermoelectric element based upon temperature feedback from treatment site. Temperature feedback from the sensors facilitates freeze-thaw cycling by the cryoprobe to more effectively destroy the tissue at the treatment site.
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