Inverted pump

Details Inverted pump Inverted pump

1986-07-03

1987-08-04

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

128DIG12, 417417, 604891, A61M 500

Patent

active

046843680

ABSTRACT:
A pump wherein an armature (64) is reciprocated between an electromagnetic core (54) and a housing (48). A diaphragm (68) is responsive to movement of the armature (64) and cooperates with a body (10) to form a pumping chamber (80). Expansion of the pumping chamber (80) by spring (66) draws fluid through a valve (20) at a slow rate. Contraction of the pumping chamber (80) by electromagnetic attraction of armature (64) to core (54) expels fluid through valve (42).

REFERENCES:
patent: 4300552 (1981-11-01), Cannon
patent: 4316460 (1982-02-01), Genese et al.
patent: 4364386 (1982-12-01), Jenkins et al.
patent: 4482346 (1984-11-01), Reinicke
patent: 4486190 (1984-12-01), Reinicke
patent: 4493709 (1985-01-01), Smith
patent: 4525165 (1985-06-01), Fischell

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