Two way accumulator programmable valve pump
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United States of America Patent
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Sep 25, 2012
Grant Date -
Apr 9, 2009
app pub date -
Oct 4, 2007
filing date -
Oct 4, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved implantable valve accumulator pump for the delivery of medication is disclosed. The implantable pump comprises a pressurized drug reservoir. The medication metering assembly comprises a fixed volume accumulator positioned between a pair of valves. The valves alternately open and close to admit medication from the reservoir into the accumulator and to dispense a precise volume pulse to an outlet catheter. In order to improve the pump's accuracy and to increase pumping volume while optimizing the pump's overall size and energy usage a two way diaphragm accumulator is used. The unit can be externally programmed or can be used in a fixed rate configuration that is never programmed but set at the factory or in the current programmable configuration.
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Family
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