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LIQUID INFUSION INFILTRATION DETECTION APPARATUS AND METHOD

  • US 3,618,602 A
  • Filed: 08/28/1969
  • Issued: 11/09/1971
  • Est. Priority Date: 08/28/1969
  • Status: Expired due to Term
First Claim
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1. Infusion-infiltration responsive apparatus for use with liquid-infusion equipment comprising:

  • liquid-delivery conduit means disposed to be inserted into a blood vessel of a patient for delivering liquid thereto and including control means for stopping liquid infusion into a patient in response to a control signal applied thereto;

    a heat-responsive element disposed to be positioned on the skin surface of a patient in the region of the entrance site of a liquid-delivery conduit into a blood vessel of the patient for producing an output indicative of the temperature of skin of the patient in said region; and

    circuit means coupled to the output of said element and to said control means for applying a control signal thereto to stop liquid infusion into the patient in response to said output attaining a selected value.

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