US 11,839,711 B2
Perfusion system with heat exchanger
Stephen Turner, Gloucester (GB); and Benjamin David Garbutt, Gloucester (GB)
Assigned to Spectrum Medical Ltd, Gloucester (GB)
Filed by Spectrum Medical Ltd., Gloucester (GB)
Filed on May 13, 2022, as Appl. No. 17/743,655.
Application 17/743,655 is a continuation of application No. 16/311,938, abandoned, previously published as PCT/GB2017/051898, filed on Jun. 29, 2017.
Claims priority of application No. 1611409 (GB), filed on Jun. 30, 2016; application No. 1706563 (GB), filed on Apr. 25, 2017; and application No. 1707935 (GB), filed on May 17, 2017.
Prior Publication US 2022/0265911 A1, Aug. 25, 2022
Int. Cl. A61M 1/16 (2006.01); A61M 1/36 (2006.01)
CPC A61M 1/1698 (2013.01) [A61M 1/3664 (2013.01); A61M 1/3666 (2013.01); A61M 1/369 (2013.01); A61M 2205/0205 (2013.01); A61M 2205/36 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A perfusion system comprising:
a heater-cooler device for heating and/or cooling a heater-cooler fluid;
an oxygenator for oxygenating blood;
a cardioplegic agent delivery system for delivering cardioplegic agent to the blood;
an oxygenation heat exchanger for controlling the temperature of oxygenated blood produced by the oxygenator;
a cardioplegia heat exchanger for controlling the temperature of blood in the cardioplegic agent delivery system;
an intermediate heat exchanger configured to permit heat exchange between the heater-cooler fluid and an antimicrobial heat exchange fluid, whereby the heater-cooler fluid is fluidically isolated from the oxygenation heat exchanger and from the cardioplegia heat exchanger; and
a plurality of intermediate passages detachably connected to the oxygenation heat exchanger, the cardioplegia heat exchanger, and the intermediate heat exchanger to supply the antimicrobial heat exchange fluid to the oxygenation heat exchanger, the cardioplegia heat exchanger, and the intermediate heat exchanger.