Implantable devices with invasive and non-invasive reversible infusion rate adjustability
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United States of America Patent
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-
N/A
Issued Date -
Jan 22, 2004
app pub date -
Mar 11, 2003
filing date -
Apr 19, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An implantable pump for delivering a pharmaceutical agent includes a pump engine, a piston, a pharmaceutical agent compartment and a rate adjustment assembly. The pharmaceutical agent compartment is configured to enclose a volume of pharmaceutical agent and the piston. When the piston is acted upon by the pump engine, the piston moves within the pharmaceutical agent compartment along a substantially circular path and delivers the pharmaceutical agent. The rate adjustment assembly is configured to enable a selective and reversible increase or decrease of the delivery rate of the pharmaceutical agent.
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