Two-compartment reduced volume infusion pump
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United States of America Patent
Stats
-
Mar 1, 2011
Grant Date -
Mar 31, 2005
app pub date -
Sep 30, 2003
filing date -
Sep 30, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An implantable infusion apparatus has a medication reservoir for storing a medication and a carrier reservoir for storing a carrier. The entire apparatus, including both reservoirs, is typically located in a housing made of stainless steel, titanium, or any other strong corrosion resistant biocompatible material. The medication and carrier reservoirs are accessed through a medication access port and a carrier access port, respectively. The access ports are covered with a medication compound septum and a carrier compound septum, respectively. The carrier reservoir is larger, and thus holds a larger volume, than the medication reservoir. To reduce the size of the implantable infusion apparatus, the medication is highly concentrated to many times the dosage required. The concentrated medication is then diluted with the carrier, to the proper dose, before it is discharged to the patient.
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