Controlled fluid transfer system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 28, 2001
Issued Date -
N/A
app pub date -
Apr 5, 1999
filing date -
Nov 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is a closed loop system for transfer of a fluid through a line between a reservoir and a vessel in a manner to provide a flow-related parameter at a selected value. The system will have major use as a non-gravity-dependent infusion device. The system comprises a pressurizable reservoir containing a quantity of the fluid; means to control the flow of the fluid being transferred in a conduit between the reservoir and the vessel, including means to pressurize the reservoir; reference means with an output related to a selectable value of the flow-related parameter; means to measure the flow-related parameter; means to compare the outputs of the reference means and the measuring means; and means responsive to the output of the comparator means to adjust the fluid flow control means to provide the selected value of the flow-related parameter. Normally, the flow-related parameter will be the fluid flow rate in the conduit or the change of fluid volume in the reservoir.
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