Blood pump for pulsating operation

Details Blood pump for pulsating operation Blood pump for pulsating operation

1992-09-09

1993-11-23

Isabella, David

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

Corporeal artificial heart, heart assist , control...

417415, 417419, A61M 112

Patent

active

052639789

ABSTRACT:
A blood pump housing (43) accommodates at least one piston (21a,21b) driven by a coupling point (19a,19b) on a triangular closed hypocycloidal path (Z.sub.a, Z.sub.b). The piston (21a,21b) is provided for periodically pressing and releasing a blood chamber (37a,37b). One of the corners of the triangular closed hypocycloidal path (Z.sub.a,Z.sub.b) is directed towards the piston (21a,21b), so that the piston movements substantially consist of three periods, i.e. an advance stroke period, a return stroke period and a stationary stroke period.

REFERENCES:
patent: 2810347 (1957-10-01), Rippingille
patent: 4296500 (1981-10-01), Monties et al.
patent: 4623350 (1986-11-01), Lapeyre et al.
patent: 4718903 (1988-01-01), Min et al.
patent: 5006104 (1991-04-01), Smith et al.
D. K. Backman et al., Trans. Amer. Soc. Int. Organs, 19 [1973], p. 547-"The Design and Evaluation of Ventricules . . . Power Source".
S. Takatani et al. IEEE 9th Annual Conference of the Engineering & Medical & Biological Society 1987-Development of a Motor-Driven . . . Heart.
Biomed. Technik 35 [1990] pp. 290-301-Preliminary Experience with a New Blood Pump.

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