US3679128A - Centrifuge - Google Patents

Centrifuge Download PDF

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Publication number
US3679128A
US3679128A US61583A US3679128DA US3679128A US 3679128 A US3679128 A US 3679128A US 61583 A US61583 A US 61583A US 3679128D A US3679128D A US 3679128DA US 3679128 A US3679128 A US 3679128A
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United States
Prior art keywords
container
compressible
centrifuge
chamber
diaphragm
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Expired - Lifetime
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US61583A
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English (en)
Inventor
Hans Peter Olof Unger
Johan E H Westberg
Gunnar Ingemar Berndtsson
Stephen Lars Schwartz
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AGA AB
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AGA AB
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Publication date
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Publication of US3679128A publication Critical patent/US3679128A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
    • B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
    • B04B5/0428—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles with flexible receptacles

Definitions

  • a centrifuge comprises a rotating chamber containing a com pressible container for the liquid to be centrifuged.
  • the centrifuge also includes means to compress the container 'to transfer liquid from the container during centrifugation.
  • the compressing means is also capable of compressing one or I more further compressible containers to transfer liquid therefrom to the first-mentioned compressible container.
  • the compressing means is preferably a diaphragm member which is urged by centrifugal force against a compressible container.
  • the container is filled with blood to be centrifuged and, after the serum is separated, a valve is opened permitting the diaphragm to compress the container to transfer the serum to a further container.
  • the valve is then closed and speed reduced until the diaphragm returns to its rest position causing compression of a still further container provided with wash water.
  • a valve is then opened to permit transfer of some or all of the wash water into the first-mentioned container and the device may then be braked to cause the water to mix with the blood cells therein.
  • the washed blood cells are then centrifuged and the water transferred to the water container or yet a still further container by the actuation of an appropriate valve similarly as in the case of transferring the serum.
  • the washing operation is repeated if desired until all of the wash water has been utilized.
  • the invention relates to a centrifuge and particularly to a centrifuge suitable for the treatment of blood.
  • a centrifuge comprising a rotor, a chamber mounted for rotation with the rotor, a compressible container located in said chamber, passage means in fluid communication with said chamber, valve means for controlling fluid flow through said passage means, and means for compressing said flexible container to decrease the volume thereof.
  • FIG. I is a radial elevation section along line I in FIG. 2 through the top portion of a centrifuge according to the invention
  • FIG. 2 is a schematic perspective view of the central portion of the centrifuge of FIG. 1 showing the course of conduits;
  • FIG. 3 is a schematic expanded perspective view showing connections between containers provided in the centrifuge of FIG. I;
  • FIG. 4 is a diagram illustrating the control of fluid flow between the containers.
  • FIG. 1 is a radial section of a centrifuge according to the invention to which correspond similar sections at 120 and 240 distance, as can be seen in FIG. 2.
  • a bottom disc 2 On the central portion 1 of the centrifuge rotor is fitted a bottom disc 2 and on this an outer ring 3, which has inside it three rectangular threads with three entrances.
  • a top disc 4 is fixed on a threaded inner ring 5, whose threads match those of the outer ring 3.
  • the outer volume of the centrifuge formed in this manner is divided into two chambers by a control device 6. This has a rigid conical partition wall 7 which is penetrated by an opening 8.
  • the control device can be raised and lowered within the centrifuge rotor through the presence on it of three plugs 13 which fit into the threads of the ring 3 and can so be adjusted up and down by twisting.
  • a compressible blood container 17 is arranged between the top disc 4 and the control device 6.
  • the container 17 is covered by a conforming plastic disc 18 with a number of ridges 19.
  • the compressible containers areannular in shape and conveniently made of polyethylene or other plastic film inert to blood. Details of a preferred bag are disclosed in US. application Ser. No. 61,574, filed Aug. 6, 1970 titled Container for Blood herein incorporated by reference.
  • a screen 20 surrounds a narrower part of the central portion 1 of the centrifuge rotor.
  • a slot 21 is provided in screen 20 through which flexible tubes 14', 15', 16 connected to the containers l4, l5, 16 are introduced into the space between rotor l and the screen 20.
  • Each tube l4, 15', 16' connects its respective container with container 17 and each is provided with a valve 14", 15", and 16" to control the flow of fluid between container 17 and each container l4, l5, and 16.
  • Valve 16" is visible in FIG. 1 and comprises an electro magnet 22 which acts on a valve arm 23, which forms a loop in which is inserted the line 16, so that the line is closed when the magnet is activated. Electromagnet 22 is actuated by electrical leads 22 in a conventional manner. When current is broken, line 16 is free, and the release of the line can be assisted by a spring 22". These details are conventional and can obviously be varied in a number of different ways.
  • FIG. 4 shows schematically how a program register 24 is arranged for the control of the operation of the centrifuge 25 through lines to the valves 14'', 15', 16" and to a brake 26, which may be any suitable electrically controlled brake. It should be noted that the valves l4", 15'', 16" are opened when the magnets are currentless.
  • Container I4 is filled with 5 X 250 1,250 ml of washing liquor.
  • Containers l5 and 16 are empty.
  • Containers 14, l5, and 16 are placed in the lower chamber of the centrifuge on the bottom disc 2, as can be seen in FIG. 1.
  • the three connecting lines or flexible tubes are placed around the central portion 1, as shown in FIG. 2 and clamped tight at the valve devices 14", 15'', 16''.
  • Control device 6 is now threaded in until practically all the air has been driven out from the lower centrifuge space. Control device 6 has then reached its bottom position, and the displacement fluid (250 ml) in cavity 12 is below partition wall 7. Owing to the substantial diaphragm stress it is not possible by hand to press the displacement fluid up through the opening 8. Control device 6 is locked in this position by any suitable known device, for example, a locking screw, which is not shown in the drawings.
  • the blood container 17 and the disc 18 are inserted, whereupon the three connecting lines to container 17 are joined together with three lines from the containers l4, l5, 16 as shown in FIG. 3.
  • the top disc 4 of the centrifugal rotor with ring 5 is screwed down into position as shown and locked in a suitable manner.
  • the centrifuge can now be started, and approximately three minutes after it has reached the steady state with approximately 1,000 g in the periphery, the blood corpuscles have been packed together and the plasma, which constitutes approximately half the volume, can be conveyed to empty container 16.
  • valve 16" is opened.
  • the heavy diaphragm 10 whose centrifugal force is greater than the diaphragm stresses, drives the displacement fluid through the opening 8.
  • the program register closes valve 16" and opens valve 14'', so that a connection is established between the containers 17 and 14.
  • the brake is now released and the centrifuge is re-started. Approximately 3 minutes after the steady state has been attained, the blood corpuscles have again been packed together and the liquor can be tapped. This is done by opening valve 15', so that the consumed washing liquor is conveyed to the container 15 in the same manner as described above for the transport of plasma to container 16. The washing process is repeated five times whereupon the centrifuge is stopped.
  • the result is that the blood corpuscles have been thoroughly washed and a minimum of washing liquor remains in the blood container 17.
  • the plasma has been conveyed to the plasma container 16 and the washing liquor to the discharge container 14.
  • the displacement fluid which at the beginning was in the lower part of control device 16 is now in the top part thereof and the bottom part is consequently exposed to a substantial overpressure caused by the diaphragm stresses.
  • the top part 4 is screwed off.
  • the blood container 17 is detached from the connecting lines and the plastic disc 18 is taken off.
  • the connecting tube of the discharge container is connected up to a discharge and the valve 15" is opened.
  • 250 ml consumed washing liquor runs off, so that the displacement fluid drops down into the bottom part.
  • the overpressure in the bottom part disappears, and the centrifuge can be dismantled.
  • control device 6 may be exercised by means of a pressure variation across the control device brought about, for example, by sealing off of the chamber where the blood container is situated and supply of the pumping pressure to that chamber via a rotating coupling.
  • Such a centrifuge operates in the same manner as the one described above, except that at least one of the chambers of the centrifuge must be in airtight separation from the at mosphere environment as well as from the other chamber.
  • the pumping action from the one chamber to the other chamber is not obtained through variation of speed, but
  • Centrifuges in accordance with the invention are intended in the first place to be used for the treatment of one blood unit at a time, but it will be apparent that it is quite possible to stackon the same axle a number of compressible containers.
  • a centrifuge comprising:
  • At least one further compressible container located in said second chamber
  • passage means placing said first compressible container in fluid communication with said further compressible container
  • valve means for controlling the flow of fluid through said passage means
  • a second diaphragm spaced from said first diaphragm and including a cavity therebetween;
  • said flexible diaphragms being inclined with respect to the axis of rotation of said rotor such that, at a certain rotational speed, said diaphragms are urged from a rest position to a high speed position compressing said one compressible container.
  • a centrifuge according to claim 1 including a plurality of further compressible containers each in fluid communication with said first compressible container through said passage means, said valve means controlling the fluid flow between said first compressible container and each of said further compressible containers.
  • a centrifuge according to claim 5 wherein said first container includes a liquid to be centrifuged, and said further compressible containers comprise a container for receiving a phase separated from the centrifugal liquid, a container for wash liquid to be introduced into said first container after separation of said phase, and a container for receiving wash liquid from said first container, said centrifuge including means for arresting motion of said first chamber whereby said wash liquid is mixed with the phase in said first container.

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  • External Artificial Organs (AREA)
  • Centrifugal Separators (AREA)
US61583A 1969-08-11 1970-08-06 Centrifuge Expired - Lifetime US3679128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1112169A SE332906B (xx) 1969-08-11 1969-08-11

Publications (1)

Publication Number Publication Date
US3679128A true US3679128A (en) 1972-07-25

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US61583A Expired - Lifetime US3679128A (en) 1969-08-11 1970-08-06 Centrifuge

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US (1) US3679128A (xx)
JP (1) JPS4936599B1 (xx)
BE (1) BE754682A (xx)
DE (1) DE2039897B2 (xx)
FR (1) FR2056830A5 (xx)
GB (1) GB1329606A (xx)
NL (1) NL7011835A (xx)
SE (1) SE332906B (xx)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737096A (en) * 1971-12-23 1973-06-05 Ibm Blood processing control apparatus
US3858796A (en) * 1971-03-15 1975-01-07 Hans Peter Olof Unger Container for use in treatment of liquid
US3987961A (en) * 1974-01-29 1976-10-26 Heraeus-Christ Gmbh Centrifuge bag for treatment of biological liquids
US4007871A (en) * 1975-11-13 1977-02-15 International Business Machines Corporation Centrifuge fluid container
WO1980001470A1 (en) * 1979-01-22 1980-07-24 Haemonetics Corp Apparatus for separating blood into components thereof
US4304357A (en) * 1980-06-16 1981-12-08 Haemonetics Corporation Blood processing centrifuge
US4344560A (en) * 1979-11-02 1982-08-17 Asahi Kasei Kogyo Kabushiki Kaisha Container, apparatus and method for separating platelets
US4402680A (en) * 1981-07-09 1983-09-06 Haemonetics Corporation Apparatus and method for separating fluid into components thereof
US4405079A (en) * 1980-11-10 1983-09-20 Haemonetics Corporation Centrifugal displacer pump
US4417884A (en) * 1981-07-09 1983-11-29 Haemonetics Corporation Centrifuge timer clamp
US4421503A (en) * 1981-07-09 1983-12-20 Haemonetics Corporation Fluid processing centrifuge and apparatus thereof
WO1987006857A1 (en) * 1986-05-16 1987-11-19 Omega Medicinteknik Ab Annular centrifuge
WO1989002273A1 (en) * 1987-09-15 1989-03-23 Omega Medicinteknik Ab Method of washing blood cells and container assembly therefor
US5672481A (en) * 1991-10-23 1997-09-30 Cellpro, Incorporated Apparatus and method for particle separation in a closed field
US6261217B1 (en) * 1997-04-16 2001-07-17 Sanguistech Aktiebolag Separation set having plate-like separation container with annular pinch valve for blood component preparation
US6656105B2 (en) 1999-05-31 2003-12-02 Gambro, Inc. Centrifuge for processing blood and blood components in ring-type blood processing bags
US6689042B2 (en) 1997-02-12 2004-02-10 Gambro, Inc. Centrifuge and container system for treatment of blood and blood components
US6740239B2 (en) 1999-10-26 2004-05-25 Gambro, Inc. Method and apparatus for processing blood and blood components
US20040104182A1 (en) * 2002-04-16 2004-06-03 Gambro, Inc. Methods and apparatuses for blood component separation
US6855102B2 (en) * 1996-02-26 2005-02-15 Gambro Inc Method for separating cells, especially platelets, and bag assembly therefor
US20050045567A1 (en) * 2003-08-25 2005-03-03 Gambro, Inc. Apparatus and method for separating a volume of composite liquid into at least two components
US20070203444A1 (en) * 2004-12-28 2007-08-30 Gambro Bct, Inc. Apparatus and Method for Separating a Volume of Whole Blood Into At Least Three Components
US20070209708A1 (en) * 2004-06-22 2007-09-13 Gambro, Inc. Bag Assembly for the Separation of a Composite Liquid and Method for Manufacturing it
US20070284320A1 (en) * 2006-06-07 2007-12-13 Gambro Bct, Inc. Apparatus and Method for Separating a Composite Liquid Into At Least Two Components
US20080053203A1 (en) * 2006-09-06 2008-03-06 Gambro Bct, Inc. Apparatus and Method for Separating A Composite Liquid Into At Least Two Components
US20080149564A1 (en) * 2006-12-20 2008-06-26 Gambro Bct, Inc. Apparatus and Method for Separating a Composite Liquid Into At Least Two Components
US20080220959A1 (en) * 2005-08-22 2008-09-11 Gambro Bct, Inc. Apparatus and Method for Separating A Composite Liquid Into At Least Two Components
US20080283473A1 (en) * 2007-05-14 2008-11-20 Gambro Bct, Inc. Apparatus and Method for Separating a Composite Liquid Into At Least Two Components
US20100026986A1 (en) * 2008-07-31 2010-02-04 Caridianbct, Inc. Method and Apparatus for Separating A Composite Liquid Into At Least Two Components And For Determining The Yield Of At Least One Component
CN101444763B (zh) * 2008-11-25 2010-12-08 康炜 全自动血液成分制备装置及制备方法
CN101306404B (zh) * 2008-07-04 2011-09-07 康炜 血液成分制备装置及制备方法
US9028388B2 (en) 2010-06-07 2015-05-12 Terumo Bct, Inc. Multi-unit blood processor with volume prediction
US9079194B2 (en) 2010-07-19 2015-07-14 Terumo Bct, Inc. Centrifuge for processing blood and blood components

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE354581B (xx) * 1971-03-15 1973-03-19 Aga Ab
DE4340678C2 (de) * 1993-11-30 2000-07-06 Hettich Andreas Gmbh & Co Kg Zentrifuge zur Trennung von Blutbestandteilen und ähnlichen Flüssigkeiten
DE19841835C2 (de) * 1998-09-12 2003-05-28 Fresenius Ag Zentrifugenkammer für einen Zellseparator

Citations (2)

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US2661150A (en) * 1947-12-17 1953-12-01 Jr William G Abbott Centrifuge
US3249295A (en) * 1966-05-03 Method for separating liquid mixtures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249295A (en) * 1966-05-03 Method for separating liquid mixtures
US2661150A (en) * 1947-12-17 1953-12-01 Jr William G Abbott Centrifuge

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858796A (en) * 1971-03-15 1975-01-07 Hans Peter Olof Unger Container for use in treatment of liquid
US3737096A (en) * 1971-12-23 1973-06-05 Ibm Blood processing control apparatus
US3987961A (en) * 1974-01-29 1976-10-26 Heraeus-Christ Gmbh Centrifuge bag for treatment of biological liquids
US4007871A (en) * 1975-11-13 1977-02-15 International Business Machines Corporation Centrifuge fluid container
WO1980001470A1 (en) * 1979-01-22 1980-07-24 Haemonetics Corp Apparatus for separating blood into components thereof
JPS55501133A (xx) * 1979-01-22 1980-12-18
US4303193A (en) * 1979-01-22 1981-12-01 Haemonetics Corporation Apparatus for separating blood into components thereof
US4344560A (en) * 1979-11-02 1982-08-17 Asahi Kasei Kogyo Kabushiki Kaisha Container, apparatus and method for separating platelets
WO1981003626A1 (en) * 1980-06-16 1981-12-24 Haemonetics Corp Blood processing centrifuge
US4304357A (en) * 1980-06-16 1981-12-08 Haemonetics Corporation Blood processing centrifuge
US4405079A (en) * 1980-11-10 1983-09-20 Haemonetics Corporation Centrifugal displacer pump
US4402680A (en) * 1981-07-09 1983-09-06 Haemonetics Corporation Apparatus and method for separating fluid into components thereof
US4417884A (en) * 1981-07-09 1983-11-29 Haemonetics Corporation Centrifuge timer clamp
US4421503A (en) * 1981-07-09 1983-12-20 Haemonetics Corporation Fluid processing centrifuge and apparatus thereof
WO1987006857A1 (en) * 1986-05-16 1987-11-19 Omega Medicinteknik Ab Annular centrifuge
WO1989002273A1 (en) * 1987-09-15 1989-03-23 Omega Medicinteknik Ab Method of washing blood cells and container assembly therefor
US5114396A (en) * 1987-09-15 1992-05-19 Omega Medicinteknik Ab Method of washing blood cells and container assembly thereof
US5672481A (en) * 1991-10-23 1997-09-30 Cellpro, Incorporated Apparatus and method for particle separation in a closed field
US6855102B2 (en) * 1996-02-26 2005-02-15 Gambro Inc Method for separating cells, especially platelets, and bag assembly therefor
US6689042B2 (en) 1997-02-12 2004-02-10 Gambro, Inc. Centrifuge and container system for treatment of blood and blood components
US20040147387A1 (en) * 1997-02-12 2004-07-29 Gambro, Inc. Centrifuge and container system for treatment of blood and blood components
US6835171B2 (en) 1997-02-12 2004-12-28 Gambro Inc Centrifuge and container system for treatment of blood and blood components
US6261217B1 (en) * 1997-04-16 2001-07-17 Sanguistech Aktiebolag Separation set having plate-like separation container with annular pinch valve for blood component preparation
US20060270542A1 (en) * 1999-05-31 2006-11-30 Gambro, Inc. Centrifuge for Processing Blood and Blood Components
US6656105B2 (en) 1999-05-31 2003-12-02 Gambro, Inc. Centrifuge for processing blood and blood components in ring-type blood processing bags
US7235041B2 (en) 1999-05-31 2007-06-26 Gambro Bct, Inc. Centrifuge for processing a blood product with a bag set having a processing bag
US7097774B2 (en) 1999-05-31 2006-08-29 Gambro Inc Method for processing a blood product with a bag set having a multi-way connector
US6740239B2 (en) 1999-10-26 2004-05-25 Gambro, Inc. Method and apparatus for processing blood and blood components
US20070084807A1 (en) * 2002-04-16 2007-04-19 Gambro, Inc. Methods and Apparatus for Blood Component Separation
US7497944B2 (en) 2002-04-16 2009-03-03 Caridianbct, Inc. Blood component processing system, apparatus, and method
US20080314822A1 (en) * 2002-04-16 2008-12-25 Gambro Bct, Inc. Apparatus for Blood Component Separation
US20070084806A1 (en) * 2002-04-16 2007-04-19 Gambro, Inc. Methods and Apparatus for Blood Component Separation
US7166217B2 (en) 2002-04-16 2007-01-23 Gambro Inc Methods and apparatuses for blood component separation
US7708889B2 (en) 2002-04-16 2010-05-04 Caridianbct, Inc. Blood component processing system method
US20040104182A1 (en) * 2002-04-16 2004-06-03 Gambro, Inc. Methods and apparatuses for blood component separation
US7279107B2 (en) 2002-04-16 2007-10-09 Gambro, Inc. Blood component processing system, apparatus, and method
US7413665B2 (en) 2002-04-16 2008-08-19 Gambro Bct, Inc. Methods and apparatus for blood component separation
US7648452B2 (en) 2002-04-16 2010-01-19 CardianBCT, Inc. Apparatus for blood component separation
US7396451B2 (en) 2002-04-16 2008-07-08 Gambo Bci, Inc. Methods and apparatus for blood component separation
US20050045567A1 (en) * 2003-08-25 2005-03-03 Gambro, Inc. Apparatus and method for separating a volume of composite liquid into at least two components
US20080093312A1 (en) * 2003-08-25 2008-04-24 Gambro Bct, Inc. Method for Separating A Volume of Composite Liquid Into At Least Two Components
US7347932B2 (en) 2003-08-25 2008-03-25 Gambro Bct, Inc. Apparatus and method for separating a volume of composite liquid into at least two components
US7648639B2 (en) 2003-08-25 2010-01-19 CaridianBCT, Inc Method for separating a volume of composite liquid into at least two components
US20070209708A1 (en) * 2004-06-22 2007-09-13 Gambro, Inc. Bag Assembly for the Separation of a Composite Liquid and Method for Manufacturing it
US20070203444A1 (en) * 2004-12-28 2007-08-30 Gambro Bct, Inc. Apparatus and Method for Separating a Volume of Whole Blood Into At Least Three Components
US8277406B2 (en) 2004-12-28 2012-10-02 Terumo Bct, Inc. Method for separating a volume of whole blood into at least three components
US7833185B2 (en) 2004-12-28 2010-11-16 Caridianbct, Inc. Apparatus for separating a volume of whole blood into at least three components
US7981019B2 (en) 2005-08-22 2011-07-19 Caridianbct, Inc. Apparatus and method for separating a composite liquid into at least two components
US20080220959A1 (en) * 2005-08-22 2008-09-11 Gambro Bct, Inc. Apparatus and Method for Separating A Composite Liquid Into At Least Two Components
US8057377B2 (en) 2005-08-22 2011-11-15 CaridianBCT, Inc Apparatus and method for separating a composite liquid into at least two components
US20110077140A1 (en) * 2005-08-22 2011-03-31 Gambro Bct, Inc. Apparatus and Method for Separating A Composite Liquid Into At Least Two Components
US20110028295A1 (en) * 2006-06-07 2011-02-03 Caridianbct, Inc. Apparatus for Separating a Composite Liquid Into At Least Two Components
US20070284320A1 (en) * 2006-06-07 2007-12-13 Gambro Bct, Inc. Apparatus and Method for Separating a Composite Liquid Into At Least Two Components
US7819793B2 (en) 2006-06-07 2010-10-26 Caridianbct, Inc. Apparatus for separating a composite liquid into at least two components
US20080053203A1 (en) * 2006-09-06 2008-03-06 Gambro Bct, Inc. Apparatus and Method for Separating A Composite Liquid Into At Least Two Components
US8173027B2 (en) 2006-09-06 2012-05-08 Terumo Bct, Inc. Method of separating a composite liquid into at least two components
US8287742B2 (en) * 2006-12-20 2012-10-16 Terumo Bct, Inc. Method for separating a composite liquid into at least two components
CN101557843B (zh) * 2006-12-20 2012-05-02 科安比司特公司 将复合液体分离成至少两种成分的设备和方法
US20080149564A1 (en) * 2006-12-20 2008-06-26 Gambro Bct, Inc. Apparatus and Method for Separating a Composite Liquid Into At Least Two Components
US20080283473A1 (en) * 2007-05-14 2008-11-20 Gambro Bct, Inc. Apparatus and Method for Separating a Composite Liquid Into At Least Two Components
US8236184B2 (en) 2007-05-14 2012-08-07 Terumo Bct, Inc. Method for separating a composite liquid into at least two components
CN101306404B (zh) * 2008-07-04 2011-09-07 康炜 血液成分制备装置及制备方法
US20100026986A1 (en) * 2008-07-31 2010-02-04 Caridianbct, Inc. Method and Apparatus for Separating A Composite Liquid Into At Least Two Components And For Determining The Yield Of At Least One Component
US8120760B2 (en) 2008-07-31 2012-02-21 Caridianbct, Inc. Method and apparatus for separating a composite liquid into at least two components and for determining the yield of at least one component
CN101444763B (zh) * 2008-11-25 2010-12-08 康炜 全自动血液成分制备装置及制备方法
US9028388B2 (en) 2010-06-07 2015-05-12 Terumo Bct, Inc. Multi-unit blood processor with volume prediction
US9849222B2 (en) 2010-06-07 2017-12-26 Terumo Bct, Inc. Multi-unit blood processor with volume prediction
US9079194B2 (en) 2010-07-19 2015-07-14 Terumo Bct, Inc. Centrifuge for processing blood and blood components

Also Published As

Publication number Publication date
NL7011835A (xx) 1971-02-15
DE2039897B2 (de) 1973-01-18
BE754682A (fr) 1971-01-18
JPS4936599B1 (xx) 1974-10-02
SE332906B (xx) 1971-02-22
GB1329606A (en) 1973-09-12
FR2056830A5 (xx) 1971-05-14
DE2039897A1 (de) 1971-03-18

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