US Patent No: 6,685,668

Number of patents in Portfolio can not be more than 2000

Closed-loop IV fluid flow control

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
HOSPIRA, INC.LAKE FOREST, IL234

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cho, Steve T Santa Clara, CA 21 575
Clark, Gene E Redwood, CA 9 186

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ADVANCED CARDIOVASCULAR SYSTEMS, INC. (1)
* 5,342,298 Automated fluid pressure control system 101 1992
 
American Cyanamid Company (1)
* 5,429,601 Aspiration control system 53 1993
 
Baxter Travenol Laboratories, Inc. (1)
* 4,925,444 Closed multi-fluid delivery system and method 228 1987
 
INFUSALD CORPORATION, A CORP. OF DE. (1)
4,447,224 Variable flow implantable infusion apparatus 198 1982
 
INSET TECHNOLOGIES INCORPORATED (1)
4,443,218 Programmable implantable infusate pump 289 1982
 
MEDTRONIC MINIMED, INC. (1)
* 6,110,152 Medication cartridge for an electronic pen-type injector, infusion pump, electronic delivery device, or the like, and method of making the same 170 1999
 
Other [Check patent profile for assignment information] (1)
* 6,280,408 Controlled fluid transfer system 106 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
DEXCOM, INC. (25)
7,783,333 Transcutaneous medical device with variable stiffness 90 2005
7,857,760 Analyte sensor 63 2006
7,640,048 Analyte sensor 294 2006
8,774,886 Analyte sensor 0 2006
8,532,730 Analyte sensor 0 2006
8,911,367 Analyte sensor 0 2007
7,775,975 Analyte sensor 74 2007
7,615,007 Analyte sensor 249 2007
8,425,416 Analyte sensor 0 2008
8,396,528 Analyte sensor 0 2008
8,364,230 Analyte sensor 0 2008
8,364,231 Analyte sensor 0 2008
8,812,072 Transcutaneous medical device with variable stiffness 0 2008
8,562,558 Integrated medicament delivery device for use with continuous analyte sensor 0 2008
8,886,273 Analyte sensor 0 2008
8,626,257 Analyte sensor 0 2008
8,562,528 Analyte sensor 0 2008
8,478,377 Analyte sensor 0 2008
8,449,464 Analyte sensor 0 2008
8,447,376 Analyte sensor 0 2008
8,425,417 Integrated device for continuous in vivo analyte detection and simultaneous control of an infusion device 0 2008
8,298,142 Analyte sensor 2 2008
8,287,453 Analyte sensor 5 2008
8,275,438 Analyte sensor 3 2008
8,750,955 Analyte sensor 0 2009
 
APOLLO ENDOSURGERY, INC. (18)
8,236,023 Apparatus and method for volume adjustment of intragastric balloons 1 2004
8,900,117 Releasably-securable one-piece adjustable gastric band 0 2005
8,292,800 Implantable pump system 0 2009
8,317,677 Mechanical gastric band with cushions 1 2009
8,366,602 Electrically activated valve for implantable fluid handling system 0 2009
8,678,993 Remotely adjustable gastric banding system 0 2010
8,758,221 Source reservoir with potential energy for remotely adjustable gastric banding system 0 2010
8,840,541 Pressure sensing gastric banding system 0 2010
8,764,624 Inductively powered remotely adjustable gastric banding system 0 2010
8,517,915 Remotely adjustable gastric banding system 0 2010
8,308,630 Hydraulic gastric band with collapsible reservoir 0 2010
8,382,780 Fatigue-resistant gastric banding device 0 2010
8,698,373 Pare piezo power with energy recovery 0 2010
8,845,513 Remotely adjustable gastric banding device 0 2011
8,323,180 Hydraulic gastric band with collapsible reservoir 0 2011
8,905,915 Self-regulating gastric band with pressure data processing 0 2011
8,876,694 Tube connector with a guiding tip 0 2011
8,900,118 Dome and screw valves for remotely adjustable gastric banding systems 0 2013
 
HOSPIRA, INC. (8)
6,813,964 Fluid flow measurement device 33 2003
6,964,204 Fluid flow measurement device 20 2004
7,082,843 Fluid flow measurement device 21 2005
8,403,908 Differential pressure based flow sensor assembly for medication delivery monitoring and method of using the same 0 2008
8,065,924 Cassette for differential pressure based medication delivery flow sensor assembly for medication delivery monitoring and method of making the same 0 2009
8,048,022 Cassette for differential pressure based medication delivery flow sensor assembly for medication delivery monitoring and method of making the same 0 2009
7,819,838 Cassette for use in a medication delivery flow sensor assembly and method of making the same 2 2009
8,657,778 Cassette for use in a medication delivery flow sensor assembly and method of making the same 0 2010
 
IVENIX, INC. (4)
7,654,982 Flow control system and method with variable pressure and variable resistance 10 2007
7,847,276 Impulse analysis for flow sensor-based fluid control system 0 2008
7,895,882 Density analysis for flow sensor-based fluid control system 1 2008
8,067,760 Impulse analysis for flow sensor-based fluid control system 1 2010
 
IRADIMED CORPORATION (3)
8,469,932 Liquid infusion apparatus 1 2009
* 8,500,694 System and method for communication with an infusion device 1 2012
8,690,829 Non-magnetic medical infusion device 0 2012
 
BROOKS INSTRUMENT, LLC (2)
7,117,104 Ultrasonic liquid flow controller 10 2004
7,360,448 Ultrasonic flow sensor having reflecting interface 4 2006
 
JACOBSON TECHNOLOGIES, LLC D/B/A SOLOMON SCIENTIFIC (2)
8,425,469 Systems and methods for controlled substance delivery network 0 2008
8,394,077 Controlled delivery of substances system and method 0 2010
 
BAXTER INTERNATIONAL INC. (1)
8,215,157 System and method for measuring liquid viscosity in a fluid delivery system 0 2008
 
CAREFUSION 303, INC. (1)
8,211,054 System and method for controlling administration of medical fluid 0 2006
 
ENDOART S.A. (1)
8,377,081 Closure system for tubular organs 0 2010
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
8,784,367 Sensor and control unit for flow control and a method for controlled delivery of fluid 0 2009
 
ROSLIN, MITCHELL (1)
8,623,042 Artificial gastric valve 0 2010
 
ROSLIN, MITCHELL STEVEN (1)
8,251,888 Artificial gastric valve 0 2006
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 3, 2015
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00