Heart pump

Details Heart pump Heart pump

1992-09-17

1994-09-06

Green, Randall L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Corporeal artificial heart, heart assist , control...

600 16, A61M 110, A61N 1362

Patent

active

053444434

ABSTRACT:
A heart pump having a housing with a central longitudinal axis, inlet means and an outlet means is disclosed. A stationary shaft extends axially within the housing and the means are provided for supporting the shaft centrally located within the housing. A stator assembly is mounted about the stationary shaft and a shell assembly is rotatable about the stator assembly and shaft. The shell assembly is located between the housing and stator assembly and includes a spiral ridge located on the outerside thereof for pumping blood through the housing between the housing and shell assembly as the shell assembly rotates. Rotor laminations are located on an innerside of the shell assembly. The rotor laminations have a plurality of axially extending permanent magnets therebetween which are circumferentially spaced about the stationary shaft. A damper winding means is mounted within the rotor laminations. Blood may flow between the shell assembly and housing without exposure to magnetic fields.

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J. Orth, M. Isaacson, K. Carr, S. Nielsen, and R. Jarvik; "An Electronically Commutated Brushless DC Motor Applied to a Total Artificial Heart", Conference: Procdeedings of the First Annual International Motorcon '81 Conference. Chicago, Ill., pp. 667-676, Jun., 1981.
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Derwent's abstract, No. 90-176654/23, week 9023, Abstract of SU, 1500310 (Kiselev Yu M), Aug. 15, 1989.

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