It is a device that uses biological or mechanical means to partially or completely replace the pumping function of the heart and maintain blood circulation throughout the body.
Biomedical materials -> Artificial Organs
materials(材料)
macromolecule(高分子)
alloy(合金)
polyurethane(聚氨酯)
wear(磨损)
aging(老化)
elasticity(弹性)
phase(相)
implantation(植入)