×

System for sensing a characteristic of fluid flowing to or from a body

  • US 6,248,077 B1
  • Filed: 10/15/1985
  • Issued: 06/19/2001
  • Est. Priority Date: 07/19/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. For use in a cardiovascular flow measuring system wherein a cold injectate fluid is delivered in a known amount from a supply through a catheter into a patient'"'"'s blood vessel and the resultant change in the temperature of the patient'"'"'s blood is sensed to determine the circulatory blood flow rate, an improved injectate fluid temperature sensor comprising:

  • a disposable housing defining a through lumen for conducting injectate fluid therethrough;

    a disposable thermally conductive receiver hermetically sealingly joined to the housing and projecting transversely into said lumen to be in heat transfer association with injectate fluid conducted through said lumen, said receiver extending substantially fully across said lumen; and

    a reusable temperature sensor removably installed in said enclosure, said sensor providing a signal corresponding accurately to the temperature of the injectate fluid conducted through said lumen.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×