Double-piston pump for administering medication

Details Double-piston pump for administering medication Double-piston pump for administering medication

A - Human Necessities

61

M

A61M 5/175 (2006.01) A61M 5/142 (2006.01) F04B 3/00 (2006.01) F04B 9/02 (2006.01)

Patent

CA 2123161

The device of the invention provides preselected doses of liquid medicine and has a cylinder assembly (1, 2) with a left cylinder (1), a right cylinder (2) and a double piston (4, 5) displaceably mounted in the assembly with a left piston end (4) and a right piston end (5). A coupling links the double piston in a positive and/or frictional manner with a drive unit (15). The device is controlled passively by two automatically closing intake valves (7, 8) and two discharge valves (11, 12). Thereby a continuous flow of liquid medicine 20 out of the medicine container 10 can be generated.

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