Double piston pump for administering medication
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United States of America Patent
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-
Jun 18, 1996
Grant Date -
N/A
app pub date -
May 10, 1994
filing date -
May 10, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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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Family
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