×

Implantable temperature probe

  • US 4,253,469 A
  • Filed: 04/20/1979
  • Issued: 03/03/1981
  • Est. Priority Date: 04/20/1979
  • Status: Expired due to Term
First Claim
Patent Images

1. An implantable bi-metallic temperature sensing unit comprising:

  • a rigid needle having a hollow substantially conical portion designed to penetrate animal tissue;

    an elongated substrate;

    a high resistance thermocouple including two overlapped metallic films bonded substantially along the longitudinal axis on one face of said elongated substrate, said substrate being folded back upon itself where said films overlap and being inserted into said conical portion to position the overlapping area in close proximity to the tip thereof;

    a meter means and flexible lead means extending from the distal end of said needle for connecting signals from said thermocouple to said meter means, said lead means including a resistive static charge shield and resistive material having characteristics similar to that of the metals in said bi-metallic thermocouple, and said needle including materials having resistance to limit the energy coupled from incident radio frequency fields.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×