A blood pump for pulsating operation

Details A blood pump for pulsating operation A blood pump for pulsating operation

A - Human Necessities

61

M

A61M 1/10 (2006.01) A61M 1/12 (2006.01) F04B 43/02 (2006.01)

Patent

CA 2077327

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 a,Z 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 a,Z 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.

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