Blood warmer
US5125069A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1989 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Dec 22, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3673
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Apparatus for changing the temperature of an infusible liquid from a first temperature to a second predetermined temperature. The apparatus includes a receiver assembly for changing the temperature of the liquid. The apparatus also includes a cartridge to be received in the assembly and which defines an enclosed passageway for movement of the fluid. The cartridge has a first end, a second end, a liquid inlet disposed adjacent the first end, a liquid output disposed adjacent the second end, and a first wall extending between the ends and made of a material having good heat transfer properties. The assembly includes a thermoelectric heat pump, and a slot is provided for releasably receiving the cartridge so that the heat pump engages the wall of the cartridge. The assembly also includes a temperature sensor engaging the wall adjacent the ouptut and an electric circuit which is responsive to the temperature sensor for controlling operation of the heat pump so that the liquid exiting the cartridge is at the predetermined temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.