Using magnostrictive metal as a pump for biomedical application.
A new theory of pumping fluids, including blood, has been developed using magnetostrictive technology. This new pump uses the magnetostrictive material known as Terfenol-DTM. A magnetic field is imposed on the Terfenol in periodic pulses causing it to expand and then relax to its original state. The expansion and relaxation of the terfenol cause a smooth, continuous flow of fluid. This pump is currently being built and will be tested as a left ventricular assist device, totally implantable artificial heart, or both.
Phillips
S J
SJ
Cardiac Surgery Associates, Des Moines, Iowa 50314-3005.
Thorton
K
K
Barker
L
L
Mina
M
M
Aris
M
M
Bedore
N
N
Grant
S
S
Zeff
R H
RH
D011211:Electric Power Supplies; D004574:Electromagnetic Fields; D004867:Equipment Design; D005290:Ferric Compounds; D006354:Heart, Artificial; D006353:Heart-Assist Devices; D006801:Humans; D008955:Models, Cardiovascular; D013725:Terbium
D005290:Ferric Compounds; D013725:Terbium; C001215:ferrite