×

Blood warmer

  • US 5,125,069 A
  • Filed: 12/22/1989
  • Issued: 06/23/1992
  • Est. Priority Date: 12/22/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. Apparatus for changing the temperature of an infusible liquid from a first temperature to a second predetermined temperature, said apparatus comprising:

  • a receiver assembly for changing the temperature of the liquid; and

    a cartridge to be received in said receiver assembly and defining an enclosed passageway for movement of said fluid, said cartridge having a first end and a second end, a liquid inlet disposed adjacent said first end, a liquid outlet disposed adjacent said second end, and a first wall extending between said ends and of material having good heat transfer properties and which partially defines said passageway,said receiver assembly including a thermoelectric heat pump means for transferring to and absorbing heat from said cartridge means for releasably receiving said cartridge so that said heat pump means engages said first wall of said cartridge, temperature sensing means engaging said first wall adjacent said outlet, and electric circuit means responsive to said temperature sensing means for controlling operation of said heat pump means so that the liquid exiting said cartridge is at substantially said predetermined temperature.

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