WO2010074929A3 - Blood processing apparatus with digitally controlled linear voltage regulator for optical pulses - Google Patents

Blood processing apparatus with digitally controlled linear voltage regulator for optical pulses Download PDF

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Publication number
WO2010074929A3
WO2010074929A3 PCT/US2009/066792 US2009066792W WO2010074929A3 WO 2010074929 A3 WO2010074929 A3 WO 2010074929A3 US 2009066792 W US2009066792 W US 2009066792W WO 2010074929 A3 WO2010074929 A3 WO 2010074929A3
Authority
WO
WIPO (PCT)
Prior art keywords
fet
voltage regulator
processing apparatus
blood
linear voltage
Prior art date
Application number
PCT/US2009/066792
Other languages
French (fr)
Other versions
WO2010074929A2 (en
Inventor
Joseph Scibona
Original Assignee
Caridianbct, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caridianbct, Inc. filed Critical Caridianbct, Inc.
Priority to EP09795607.2A priority Critical patent/EP2361376B1/en
Publication of WO2010074929A2 publication Critical patent/WO2010074929A2/en
Publication of WO2010074929A3 publication Critical patent/WO2010074929A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/04—Investigating sedimentation of particle suspensions
    • G01N15/042—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3693—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3693—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging
    • A61M1/3696—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/04—Investigating sedimentation of particle suspensions
    • G01N15/05—Investigating sedimentation of particle suspensions in blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3306—Optical measuring means
    • A61M2205/331—Optical measuring means used as turbidity change detectors, e.g. for priming-blood or plasma-hemoglubine-interface detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
    • B04B2013/006—Interface detection or monitoring of separated components
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/04—Investigating sedimentation of particle suspensions
    • G01N15/042—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates
    • G01N2015/045—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates by optical analysis
    • G01N2015/047—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates by optical analysis by static multidetectors

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Immunology (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Cardiology (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Endoscopes (AREA)

Abstract

The invention relates to apparatus for controlling the processing of blood into blood components, particularly components for stroboscopic LED light sources for centrifuges. A digital control circuit controls a high amperage linear voltage regulator. The voltage regulator charges a capacitor bank, which in turn powers LED light sources. The digital control circuit comprises an N-channel switched mode FET. The switched mode FET receives a pulsed digital signal from the microprocessor controlling the blood processing apparatus. A by-pass resistor in parallel with the FET allows most of the current to flow past the FET, thus minimizes heating of the FET. The performance of the FET, therefore, remains stable despite extended use of the apparatus.
PCT/US2009/066792 2008-12-22 2009-12-04 Blood processing apparatus with digitally controlled linear voltage regulator for optical pulses WO2010074929A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09795607.2A EP2361376B1 (en) 2008-12-22 2009-12-04 Blood processing apparatus with digitally controlled linear voltage regulator for optical pulses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13969908P 2008-12-22 2008-12-22
US61/139,699 2008-12-22

Publications (2)

Publication Number Publication Date
WO2010074929A2 WO2010074929A2 (en) 2010-07-01
WO2010074929A3 true WO2010074929A3 (en) 2010-08-19

Family

ID=41727476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/066792 WO2010074929A2 (en) 2008-12-22 2009-12-04 Blood processing apparatus with digitally controlled linear voltage regulator for optical pulses

Country Status (3)

Country Link
US (1) US8241196B2 (en)
EP (1) EP2361376B1 (en)
WO (1) WO2010074929A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015113700A1 (en) * 2014-01-30 2015-08-06 Fresenius Kabi Deutschland Gmbh Centrifuge and separation chamber for a centrifuge
DE102014208880B4 (en) * 2014-05-12 2016-09-01 Continental Automotive Gmbh Driver circuit for an inductance and active transmitting device with a driver circuit
EP3282921B1 (en) 2015-04-16 2022-02-16 Gentuity LLC Micro-optic probes for neurology
WO2016202223A1 (en) 2015-06-16 2016-12-22 The Hong Kong University Of Science And Technology Three-dimensional power stage and adaptive pipeline control
JP6981967B2 (en) 2015-08-31 2021-12-17 ジェンテュイティ・リミテッド・ライアビリティ・カンパニーGentuity, LLC Imaging system including imaging probe and delivery device
WO2017058872A1 (en) * 2015-09-29 2017-04-06 Haemonetics Corporation System and method for imaging a rotating object
JP7160935B2 (en) 2017-11-28 2022-10-25 ジェンテュイティ・リミテッド・ライアビリティ・カンパニー Imaging system
US11282888B1 (en) * 2020-08-26 2022-03-22 Pix Art Imaging Inc. Scheme of boosting adjustable ground level(s) of storage capacitor(s) of BJT pixel circuit(s) in pixel array circuit of image sensor apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020147094A1 (en) * 2001-04-09 2002-10-10 Dolecek Victor D. System and method for automated separation of blood components
US20060001860A1 (en) * 2004-07-01 2006-01-05 Gambro, Inc. Stroboscopic led light source for blood processing apparatus
WO2008079583A2 (en) * 2006-12-20 2008-07-03 Caridianbct, Inc. Blood processing apparatus with dedicated stroboscopic controller for led light source

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US4151844A (en) * 1977-11-11 1979-05-01 Baxter Travenol Laboratories, Inc. Method and apparatus for separating whole blood into its components and for automatically collecting one component
IT1151524B (en) * 1982-03-25 1986-12-24 Dideco Spa DEVICE TO OBTAIN PLASMAPHERESIS BY CENTRIFUGATION
DE3301113C2 (en) * 1983-01-14 1985-01-10 Fresenius AG, 6380 Bad Homburg Method and device for separating media
JPS59206744A (en) 1983-04-06 1984-11-22 ベ−カ−・インストルメンツ・コ−ポレ−シヨン Centrifugal analyzer
US4671102A (en) * 1985-06-18 1987-06-09 Shell Oil Company Method and apparatus for determining distribution of fluids
US4724317A (en) * 1985-12-05 1988-02-09 Baxter Travenol Laboratories, Inc. Optical data collection apparatus and method used with moving members
US4670002A (en) * 1985-12-09 1987-06-02 Hitachi Koki Company, Ltd. Centrifugal elutriator rotor
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020147094A1 (en) * 2001-04-09 2002-10-10 Dolecek Victor D. System and method for automated separation of blood components
US20060001860A1 (en) * 2004-07-01 2006-01-05 Gambro, Inc. Stroboscopic led light source for blood processing apparatus
WO2008079583A2 (en) * 2006-12-20 2008-07-03 Caridianbct, Inc. Blood processing apparatus with dedicated stroboscopic controller for led light source

Also Published As

Publication number Publication date
EP2361376B1 (en) 2020-09-23
WO2010074929A2 (en) 2010-07-01
US8241196B2 (en) 2012-08-14
US20100160134A1 (en) 2010-06-24
EP2361376A2 (en) 2011-08-31

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