Implantable osmotic pump
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jan 17, 2003
filing date -
Apr 19, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An implantable osmotic pump for delivering a pharmaceutical agent to a patient includes an osmotic engine, a substantially toroidal compartment disposed at least partially around the osmotic engine and a piston disposed within the compartment. The osmotic engine is configured to cause the piston to travel within the compartment and deliver a dose pharmaceutical agent contained within the compartment when the pump is implanted in an aqueous environment. A dose escalation assembly may be fitted to the pump, the dose escalation assembly being adapted to selectively increase the rate at which the pharmaceutical agent is delivered from the pump.
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