Closed-loop IV fluid flow control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6685668
SERIAL NO

09628846

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a closed-loop process, a controller uses a flow sensor to monitor the flow of a medicinal fluid being infused into a patient, to achieve a desired rate of flow. A relatively inexpensive peristaltic pump or electronically controlled valve can be used to vary the flow of the medicinal fluid through a fluid line. A Y site within the fluid line includes an integral flow sensor having an orifice. The flow sensor includes proximal and distal pressure sensors disposed on opposite sides of the orifice to monitor the distal and proximal pressure, producing a signal indicative of the rate of flow of the medicinal fluid through the fluid line. A signal produced by the controller is input to a motor driving the pump or to the valve to vary the rate of flow as required to achieve the desired infusion rate of the medicinal fluid.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ICU MEDICAL, INC.SAN CLEMENTE, CA229

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cho, Steve T Santa Clara, CA 16 760
Clark, Gene E Redwood, CA 7 248

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
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AMERICAN CYANAMID COMPANY (1)
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
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* Cited By Examiner