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

A - Human Necessities

61

M

A61M 5/152 (2006.01) A61M 5/155 (2006.01) A61M 5/168 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2057937

LIQUID DELIVERY DEVICE PARTICULARLY USEFUL FOR DELIVERING DRUGS ABSTRACT OF THE DISCLOSURE 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. - i -

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