Using one rotary blood pump to produce separate pulsatile circulations in the upper and lower halves of the body.
Separate systemic circulations with pulsatile flow were obtained using 1 rotary blood pump as a left ventricular assist device. The outlet of the pump was divided into 2 conduits, 1 connected to the upper half of the body and the other connected to the lower half. An electric actuator that clamped the 2 outlet conduits alternately provided pulsatile flows. An in vitro experiment showed that the pulsatility phases of the upper and lower halves of the body were complementary with pulsatile flow, and an in vivo experiment showed that controlled flow distributions of continuous flows could be obtained.
Isoyama
T
T
Artificial Biomechanism, Department of Life Science, Research Center for Advanced Science and Technology (RCAST), University of Tokyo, Tokyo, Japan.
Abe
Y
Y
Chinzei
T
T
Mochizuki
S
S
Karita
T
T
Saito
I
I
Ono
T
T
Kouno
A
A
Baba
K
K
Imachi
K
K
D000818:Animals; D001783:Blood Flow Velocity; D002498:Centrifugation; D004867:Equipment Design; D006041:Goats; D006353:Heart-Assist Devices; D006439:Hemodynamics; D011673:Pulsatile Flow