title: Using magnostrictive metal as a pump for biomedical application.
abstract: 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.
authors.affiliation: Cardiac Surgery Associates, Des Moines, Iowa 50314-3005.
authors.forename: S J
authors.initials: SJ
authors.lastname: Phillips
authors.forename: K
authors.initials: K
authors.lastname: Thorton
authors.forename: L
authors.initials: L
authors.lastname: Barker
authors.forename: M
authors.initials: M
authors.lastname: Mina
authors.forename: M
authors.initials: M
authors.lastname: Aris
authors.forename: N
authors.initials: N
authors.lastname: Bedore
authors.forename: S
authors.initials: S
authors.lastname: Grant
authors.forename: R H
authors.initials: RH
authors.lastname: Zeff
mesh_terms: 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
chemical_list: D005290:Ferric Compounds; D013725:Terbium; C001215:ferrite