Dispensing – With casing or support
Patent
1981-12-11
1984-01-17
Rolla, Joseph J.
Dispensing
With casing or support
222326, 222334, 222389, 604141, A61M 500, B67D 542
Patent
active
044260245
ABSTRACT:
The fluid dispensing device (10) is utilized in a fluid dispensing system (12) which includes a syringe (22) having a cylindrical barrel (36) with an inlet/outlet opening (20) at a forward end thereof and which is open at the rearward end thereof. A plunger (38) is received in the barrel (36). A source (14) of medicinal additive is coupled by a two-way check valve (18) to the inlet/outlet opening (20). A needle (24) is mounted to the outlet (26) of the valve (18).
The fluid dispensing device (10) is manipulatable to operate the syringe (22), first to draw a precise amount of medicinal additive into the syringe (22) through the valve (18) and second to dispense the precise amount of medicinal additive from the syringe (22) through the needle (24) into, for example, a receptacle (34) having a base liquid therein. The device (10) comprises a body (50), holder (52, 54, 56) on body (50) for receiving and holding the syringe (22), actuator (84) on the body (50) for engaging the plunger (38) and powered piston assembly (88, 90, 92, 98 and 100) for selectively moving the actuator (84) between a forward position where the syringe (22) is ready to draw in a medicinal additive and a rearward portion defining the precise amount of medicinal additive to be drawn into the syringe (22).
REFERENCES:
patent: 2692706 (1954-10-01), Wiksten
patent: 3353537 (1967-11-01), Knox et al.
patent: 3395704 (1968-08-01), Frey et al.
patent: 3799406 (1974-03-01), St. John et al.
patent: 3993064 (1976-11-01), McCarthy et al.
Anderson Lenart
Hogan Lawrence R.
Baxter Travenol Laboratories Inc.
Benziger Robert A.
Fitzgerald Thomas
Flattery Paul C.
Gerstman George H.
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