New Type of Pulsatile Flow System for Artificial Heart-Lung Bypass

Nodar Khodeli, Tengiz Ekvtimishvili, Djumber Partsakhashvili, Tornike Sologashvili, Tamta Kiknavelidze 

Experimental Cardiosurgery Department of National Center of Surgery, Tbilisi, Georgia

In the artificial system of heart-lung bypass, used during a surgery on stopped heart, a common problem-causing device is a roller pump. Inexpensive, simple, yet dependable device is in the process of development, with characteristics maximally approximated to the physiological parameters of the organism’s natural heart. Substituting for the roller pumps, this device consists of two reservoirs. Hermetic reservoirs are interconnected in parallel. They also connect to other parts of the system with blood tubing. A pneumo consol for artificial ventricles represents the control system and ensures pulsatile blood flow in the biomodel’s.

Keywords:  artificial heart-lung bypass, reservoir, perfusion system