Implantable manually actuated medication dispensing system
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United States of America Patent
Stats
-
Oct 22, 1985
Grant Date -
N/A
app pub date -
Apr 13, 1983
filing date -
Apr 13, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An implantable manually-actuated dispensing system includes a housing wherein a reservoir and dispensing port are provided. Medicament within the reservoir is urged through the dispensing port in predetermined uniform dosages by a fluid circuit which serially includes a safety pump and a metering pump. The safety pump is first actuated and released to cause a quantity of medicament to be advanced through the fluid circuit into the chamber of the metering pump. The metering pump is next actuated to cause a predetermined dosage from the advanced medicament to be dispensed through the dispensing port. Check valves prevent reverse flow through the circuit and prevent medicament from entering the metering pump except upon actuation and release of the safety pump.
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