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Automatic over-temperature control apparatus for a therapeutic heating device

  • US 4,907,589 A
  • Filed: 04/29/1988
  • Issued: 03/13/1990
  • Est. Priority Date: 04/29/1988
  • Status: Expired due to Term
First Claim
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1. An apparatus for combined manual and automatic over-temperature control of heating of biological bodily tissue by an electrode applied thereto, said apparatus comprising:

  • (a) Electromagnetic power source means having a manually actuated output level control means for manually raising or lowering the output power from said electromagnetic power source means applied to said electrode and thus raising and lowering the heating of said bodily tissue;

    (b) Temperature measuring means adapted to be connected to said electrode, said electrode having a built-in temperature sensor such that said temperature measuring means detects the temperature sensed by said temperature sensor which in turn reflects the temperature of the tissue heated by said electrode;

    (c) Over-temperature control means having means for manually setting a set-temperature, said over-temperature control means being cooperatively connected to said electromagnetic power source means and said temperature measuring means, whereby when the measured temperature, which can be raised by said manually actuated output level control means, approaches said set-temperature, the over-temperature control means will regulate the output of said electromagnetic power source means to maintain said measured temperature within a range relative to said set-temperature;

    so that an operator can manually control the rise of said measured temperature in the critical phase when said bodily tissue is beginning to be heated by said electrode by raising said manually actuated output level control means, and can also achieve stabilization of said measured temperature near said set-temperature when said manually actuated output level control means reaches an output level where said measured temperature approaches said set-temperature.

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