Liquid delivery device particularly useful for delivering drugs

Details Liquid delivery device particularly useful for delivering drugs Liquid delivery device particularly useful for delivering drugs

1991-12-16

1993-09-07

Green, Randall L.

Surgery

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

Treating material introduced into or removed from body...

222 95, 222494, 128DIG12, 604141, 604145, A61M 3700

Patent

active

052424065

ABSTRACT:
A delivery device for delivering a liquid containing a drug includes a first diaphragm within a housing defining a first contractible-chamber on one side of the diaphragm for holding a supply of the liquid to be delivered, and a second contractible chamber on the opposite side of the diaphragm including an electrolytic cell capable of generating a gas according to the electrical current passed through the cell electrolyte. The device further includes a second diaphragm, a control valve, and a spring, for compensating the rate of delivery of the liquid for variations in ambient pressure and temperature.

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