Fluid motor driven blood pump

Details Fluid motor driven blood pump Fluid motor driven blood pump

1990-03-01

1992-09-08

Michalsky, Gerald A.

Pumps

Motor driven

Fluid motor

415202, 415900, 416223R, 417407, 600 16, 623 3, F04D 700

Patent

active

051453339

ABSTRACT:
A rotary blood pump includes an impeller in a pump chamber driven by a fluid motor. In a first preferred embodiment, the fluid motor includes a rotary member having a series of cupped fluid reactive surfaces that receive a tangential inlet pressurized fluid flow. The cupped surfaces direct the fluid to opposite sides of the rotary member. Passages extending through the rotary member convey fluid from one side of the rotary member to the other. In a second preferred arrangement, the fluid motor is defined by a positive displacement motor. In a third embodiment, the fluid motor is separated from the pump chamber by a wall. Both biocompatible and non-biocompatible fluids can be used to drive the fluid motor.

REFERENCES:
patent: Re26306 (1967-11-01), Jekat et al.
patent: 932240 (1909-08-01), Beale et al.
patent: 2700935 (1955-01-01), Teague, Jr.
patent: 3608088 (1971-09-01), Dorman et al.
patent: 4135253 (1979-01-01), Reich et al.
patent: 4173796 (1979-11-01), Jarvik
patent: 4296500 (1981-10-01), Monties et al.
patent: 4594060 (1986-06-01), Schwab
patent: 4625712 (1986-12-01), Wampler
patent: 4704121 (1987-11-01), Moise
patent: 4927407 (1990-05-01), Dorman

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