Passive flow control devices for implantable pumps
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United States of America Patent
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Dec 27, 2005
Issued Date -
N/A
app pub date -
Jan 17, 2002
filing date -
Apr 30, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An implantable drug delivery device is provided with a passive flow control device is provided in the form of a valve which may assume two flow states. Flow control is achieved by duty cycling the valve using a control module which generates appropriate signals in response to an input telemetry signal corresponding to a desired flow rate. In another embodiment, a passively controlled bolus delivery device is provided to deliver a bolus of drug in addition to normal dosage.
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