Infusion apparatus and method
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United States of America Patent
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-
Mar 31, 1981
Issued Date -
N/A
app pub date -
Sep 17, 1979
filing date -
Feb 5, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An infusion apparatus and method employs an infusate reservoir connected by way of a first flow path having a first flow restrictor to a mixing chamber. The reservoir is also connected by a second flow path having a second flow restrictor to the same mixing chamber so that infusate may be conveyed to the chamber at different rates. A normally closed valve is provided in the second flow path so that infusate flows from the two paths supplement one another in the mixing chamber only when the valve is open. The reservoir and chamber volumes, infusate concentration and chamber outlet flow rate are selected to provide an integrated dosage profile suited to the patient.
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