Page 568 - Handbook of Biomechatronics
P. 568
Artificial Hearts 561
Fig. 34 Transcutaneous power leads provide power to the DeBakey axial heart pump.
Heart pump M
Skin Motor
drive
DC power External Internal Power
source DC/AC coil coil circuit Controller
Controller
Aux power
supply
Fig. 35 Block diagram showing the components of a transcutaneous energy transfer
system.
It uses rechargeable cells with the highest power density possible to min-
imize the mass that the patient needs to carry.
• DC/AC converter—this consists of an inverter or power oscillator
that typically generates an adjustable square-wave signal at a frequency
of between 100kHz and 1MHz.
