Infusion pump

Details Infusion pump Infusion pump

1983-08-18

1985-12-31

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604208, 604211, 604246, A61M 500

Patent

active

045618569

ABSTRACT:
The pump (10 or 150) is adapted to deliver liquid (24 or 166) to an individual. The pump comprises a syringe section (12 or 152) including a syringe barrel (18 or 160) having a nozzle (20 or 162) at one end and a syringe piston (22 or 170) in the barrel (18 or 160), an intermediate section (14 or 154 and 156) mounting a piston rod (46 or 265) for axial movement thereof, one end of the rod (46 or 265) being associated with the piston (22 or 170) for acting on the piston (22 or 170), and a drive section (16 or 158) at the other end of the pump (10 or 150) including a gas spring (113 or 300) associated with the other end of the piston rod (46 or 265) for acting on same to move the piston rod (46 or 265) which moves the syringe piston (22 or 170) to cause liquid to be delivered from the syringe barrel (18 or 160).

REFERENCES:
patent: 2168437 (1939-08-01), Buercklin
patent: 2545017 (1951-03-01), Billingsley
patent: 2605765 (1952-08-01), Kollsman
patent: 3433223 (1969-03-01), Black

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