EP0575858A2 - Centrifugeuse - Google Patents

Centrifugeuse Download PDF

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Publication number
EP0575858A2
EP0575858A2 EP93109499A EP93109499A EP0575858A2 EP 0575858 A2 EP0575858 A2 EP 0575858A2 EP 93109499 A EP93109499 A EP 93109499A EP 93109499 A EP93109499 A EP 93109499A EP 0575858 A2 EP0575858 A2 EP 0575858A2
Authority
EP
European Patent Office
Prior art keywords
separation chamber
main rotor
centrifuge
line
centrifuge according
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP93109499A
Other languages
German (de)
English (en)
Other versions
EP0575858B1 (fr
EP0575858A3 (en
Inventor
Friedrich Witthaus
Wolfram Weber
Wolfgang Dr. Biesel
Carlo Lay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fresenius SE and Co KGaA
Original Assignee
Fresenius SE and Co KGaA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6461454&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0575858(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fresenius SE and Co KGaA filed Critical Fresenius SE and Co KGaA
Publication of EP0575858A2 publication Critical patent/EP0575858A2/fr
Publication of EP0575858A3 publication Critical patent/EP0575858A3/de
Application granted granted Critical
Publication of EP0575858B1 publication Critical patent/EP0575858B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
    • 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
    • B04B5/0442—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers 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
    • B04B5/00—Other centrifuges
    • B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
    • B04B5/0442—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
    • B04B2005/0492—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation with fluid conveying umbilicus between stationary and rotary centrifuge parts

Definitions

  • the invention relates to a centrifuge with a separation chamber, to which a line is firmly connected, with a main rotor, on which the separation chamber can be rotated relative to this by means of a bearing arrangement, and with a guide device on the main rotor for guiding the line from the center lower area of the separation chamber into an area above the centrifuge.
  • DE-PS 32 42 541 which describes a centrifuge in which the separation chamber is firmly connected to a line.
  • a centrifuge is designed to be free of mechanical seals and allows a firm connection between the separation chamber and the line, which usually comprises a plurality of hoses or lines which are parallel to one another in order to supply or remove the individual components to be separated.
  • it is necessary to rotate the separation chamber at twice the angular speed of the main rotor in order to avoid damaging the line.
  • a similar configuration is also shown in US Pat. No. 4,163,519.
  • the separation chamber is mounted on the main rotor by means of a hollow tube.
  • the pipe must be passed through the hollow tube, which results in very cumbersome handling steps when inserting or detaching the separation chamber.
  • the line or the centrifuge tube When inserting a rigid separation chamber, the line or the centrifuge tube must be threaded through the bearing. Since an extensive hose system is attached to the lower end of the centrifuge hose, this must also be passed through the hollow shaft of the bearing.
  • the invention has for its object to provide a centrifuge of the type mentioned, which allows simple and quick insertion of the separation chamber into the main rotor from above with a simple structure and simple design, which is designed to be reliable and is characterized by a small size.
  • the object is achieved in that the bearing arrangement for inserting the line into the main rotor in the area of the main rotor comprises an area that is open or open in the radial direction.
  • the centrifuge according to the invention is characterized by a number of considerable advantages. Due to the open or opening design of the bearing, it is possible to insert the hose line laterally without having to dismantle the bearing or without the line having to be threaded through the bearing. The centrifuge tube or the line can thus be inserted from above, whereupon the separation chamber itself can be plugged on or mounted. Handling is thus made considerably easier, operating errors are ruled out because the entire system can be viewed from above. Furthermore, the size can be minimized, since the main rotor itself is arranged below the separation chamber and not a larger one Diameter must show as the separation chamber. It is therefore also possible to design the centrifuge as a tabletop device, which results in a variety of other applications.
  • the bearing arrangement has an axis arranged on the separation chamber, as well as a plurality of rollers distributed around the circumference, rotatably mounted on the main rotor, which can be attached to the axis against the axis in order to support them.
  • the multiple rollers thus, because they are spaced from one another, form an "open bearing" which enables the line to be inserted.
  • the three rollers are each provided in two axially spaced planes in order to ensure that the axis of the separation chamber is supported against tilting.
  • rollers can be provided instead of three within the scope of the invention.
  • At least one race ring is preferably formed on the axis of the separation chamber and is suitable for interaction with the track rollers.
  • the race can for example be made of a harder material, it is also possible to profile the race and / or one of the rollers. This can provide an axial lock for locking the separation chamber, since the race or the roller engage in a form-fitting manner can, in order to cause a latching.
  • other axial securing devices are also possible, for example by means of a radially movable, spring-preloaded ball or by similar components.
  • a gear area for rotating the separation chamber in dependence on the rotation of the main rotor is arranged on the axis of the separation chamber.
  • the separation chamber must be driven at twice the angular speed as the main rotor in order to ensure a corresponding twisting or untwisting of the line.
  • the axis itself has a gear area in order to ensure a forced rotary coupling between the separation chamber and the main rotor.
  • the gear area can be designed, for example, as a toothing, the toothing being able to mesh with a pinion which is connected to a shaft, which in turn is rotatably mounted on the main rotor.
  • the other end of the shaft is, for example, in engagement with a ring gear which is located on a frame of the centrifuge.
  • the rollers can be made elastic to compensate for imbalances, so that there is a self-centering structure.
  • the separation chamber is preferably designed as a disposable or disposable article, which is made, for example, from a recyclable plastic.
  • the recyclable separation chamber includes part of the drive or the bearing of the centrifuge because of the gear area and the races.
  • the arrangement and design of the centrifuge shown in FIG. 1 corresponds in terms of the basic structure to the centrifuge described in DE-PS 32 42 541. To avoid repetition, reference is therefore made to the description in this patent specification.
  • FIG. 1 shows a frame 13 on which a motor 14 is mounted.
  • a frame-shaped main rotor 3 is rotatably mounted, which is provided with a hollow axis 15 which is connected to the motor 14 via a belt drive 16.
  • Another belt drive 17 serves to drive a shaft 18 which is rotatably mounted in the hollow axis 15.
  • the shaft 18 has at its upper end a gear 19 which meshes with a pinion 20, which in turn is flanged onto a shaft 12, the upper end of which carries a pinion 11.
  • a recess 21 is formed, through which an axis 5 of a separation chamber 1 can be pushed.
  • a line 2 opens at the lower end of the axis 5, which is guided upwards in an arc, as can be seen from FIG. 1.
  • the main rotor 3 comprises a guide device (bracket) 4, on which the line 2 is held.
  • the latter also has three upper bearing rollers 6 and three lower bearing rollers 7 in an upper and a lower level, which are equally spaced and thus serve to support the axis 5.
  • the axis 5 is provided with an upper race 8 and a lower race 9 against which the bearing rollers 6 and 7 are supported. From the representation of Fig. 1 it follows that the bearing rollers 6 and 7 are each rotatably mounted on support rods or the like and, since three bearing rollers are provided on the circumference, have a distance from one another which enables the line 2 to be passed through if the Separation chamber 1 is plugged on or removed (see the double arrow in the upper area of FIG. 1).
  • a gear region 10 is also formed in the form of a toothing which meshes with the pinion 11.
  • the drive ratios are selected so that the separation chamber 1 is driven at twice the rotational speed as the main rotor 3.
  • DE-PS 32 42 541 With regard to the storage and design of the line 2, reference is made to DE-PS 32 42 541.
  • the separation chamber 1, together with the shaft 5 attached to it can be inserted or removed in a simple manner from above, without the bearing arrangement, which is caused by the upper and lower bearing rollers 6, 7 and the race 8 or 9 is formed, the insertion or removal of the line hindered. It is not necessary, as is known in the prior art, to thread the line through a hollow shaft or to install the separation chamber from below. Since the axis 5 of the separation chamber 1 is also provided with the gear area 10, an exact assignment of the angular velocities of the separation chamber 1 and the main rotor 3 is ensured.
  • FIG. 2 and 3 show a further embodiment of the centrifuge according to the invention.
  • the main rotor 3 is provided with a recess 22 into which the separation chamber 1 can be inserted, as indicated by the double arrow.
  • 2 further shows the arrangement and mounting of the upper bearing roller 6 and the lower bearing roller 7.
  • the upper bearing roller 6 has an axis 23 which is received in a recess in the main rotor 3 and is mounted by means of two bearings.
  • an axis 24 of the lower bearing roller 7 is received and stored.
  • the shaft 12 is supported, which carries the pinion 11 at its end.
  • FIG. 3 shows in plan view that the three upper and three lower bearing rollers 6, 7 are each at a distance from each other, which allows the hose or the line 2 to pass through the side.
  • the guide device for the line 2 is designed in the form of a groove 4, as shown in FIG. 3.
  • the width of the groove 4 is somewhat larger than the diameter of the line 2, so that it is guided, but is rotatably held, as is required in the centrifuge described.
  • FIG. 2 further shows that the shaft 12, which is connected to the toothed gear in the region 10 via the pinion 11, carries at its end a gearwheel 25 which meshes with a ring gear 26 which is fixedly mounted on the frame 13.
  • the separation chamber 1 is thus forcibly driven at the required angular velocity.

Landscapes

  • Centrifugal Separators (AREA)
EP93109499A 1992-06-20 1993-06-15 Centrifugeuse Expired - Lifetime EP0575858B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4220232A DE4220232A1 (de) 1992-06-20 1992-06-20 Zentrifuge
DE4220232 1992-06-20

Publications (3)

Publication Number Publication Date
EP0575858A2 true EP0575858A2 (fr) 1993-12-29
EP0575858A3 EP0575858A3 (en) 1994-08-10
EP0575858B1 EP0575858B1 (fr) 1996-09-25

Family

ID=6461454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109499A Expired - Lifetime EP0575858B1 (fr) 1992-06-20 1993-06-15 Centrifugeuse

Country Status (5)

Country Link
US (1) US5350514A (fr)
EP (1) EP0575858B1 (fr)
JP (1) JP3323287B2 (fr)
DE (2) DE4220232A1 (fr)
ES (1) ES2092184T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043071A1 (fr) * 1999-04-09 2000-10-11 Jean-Denis Rochat Appareil de cetrifugation de liquide et utillisation de cet appareil
WO2014027016A1 (fr) * 2012-08-14 2014-02-20 Fresenius Kabi Deutschland Gmbh Dispositif centrifuge et procédé d'utilisation de celui-ci

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330905C2 (de) * 1993-09-11 1995-06-14 Fresenius Ag Verriegelungsvorrichtung für eine Lageranordnung einer Separationskammer einer Zentrifuge
DE19803534C2 (de) * 1998-01-30 1999-11-11 Fresenius Ag Zentrifuge und Leitung zum Zuführen und/oder Abführen mindestens eines Fluids von der Separationseinheit einer Zentrifuge zu einer ortsfesten Anschlußstelle
DE19803535C2 (de) * 1998-01-30 1999-11-18 Fresenius Ag Zentrifuge und Leitung zum Zuführen und/oder Abführen mindestens eines Fluids von der Separationseinheit einer Zentrifuge zu einer ortsfesten Anschlußstelle
US6315707B1 (en) 1999-09-03 2001-11-13 Baxter International Inc. Systems and methods for seperating blood in a rotating field
US6860846B2 (en) * 1999-09-03 2005-03-01 Baxter International Inc. Blood processing systems and methods with umbilicus-driven blood processing chambers
US6322488B1 (en) * 1999-09-03 2001-11-27 Baxter International Inc. Blood separation chamber with preformed blood flow passages and centralized connection to external tubing
US6524231B1 (en) 1999-09-03 2003-02-25 Baxter International Inc. Blood separation chamber with constricted interior channel and recessed passage
DE10129769A1 (de) 2001-06-20 2003-01-09 Fresenius Hemocare Gmbh Schlauchanordnung und Verfahren zu ihrer Herstellung
DE10142744C1 (de) 2001-08-31 2003-05-22 Fresenius Hemocare Gmbh Zentrifuge
US7211037B2 (en) 2002-03-04 2007-05-01 Therakos, Inc. Apparatus for the continuous separation of biological fluids into components and method of using same
US7479123B2 (en) 2002-03-04 2009-01-20 Therakos, Inc. Method for collecting a desired blood component and performing a photopheresis treatment
US6849039B2 (en) * 2002-10-24 2005-02-01 Baxter International Inc. Blood processing systems and methods for collecting plasma free or essentially free of cellular blood components
US7297272B2 (en) 2002-10-24 2007-11-20 Fenwal, Inc. Separation apparatus and method
US7476209B2 (en) 2004-12-21 2009-01-13 Therakos, Inc. Method and apparatus for collecting a blood component and performing a photopheresis treatment
EP1683578A1 (fr) 2005-01-25 2006-07-26 Jean-Denis Rochat Separateur centrifuge pour liquide physiologique en particulier pour le sang
DE102007011332A1 (de) 2007-03-08 2008-09-11 Fresenius Hemocare Deutschland Gmbh Vorrichtung und Verfahren zum Separieren einer Zellsuspension, insbesondere zum Abtrennen mindestens einer Blutkomponente aus Vollblut
EP2731724B1 (fr) * 2011-09-22 2015-01-14 Fenwal, Inc. Système d'entraînement pour centrifugeuse
EP2731725B1 (fr) * 2011-09-22 2015-01-14 Fenwal, Inc. Système d'entraînement pour centrifugeuse
US10099228B2 (en) * 2015-10-09 2018-10-16 Invetech, Inc. Apparatus for performing counter flow centrifugation and method of using same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986442A (en) * 1975-10-09 1976-10-19 Baxter Laboratories, Inc. Drive system for a centrifugal liquid processing system
US4194684A (en) * 1977-06-13 1980-03-25 Baxter Travenol Laboratories, Inc. Centifugal apparatus using polyester elastomer tubing
US4163519A (en) * 1977-11-01 1979-08-07 Union Carbide Corporation Compensating rotor
JPS5676260A (en) * 1979-11-27 1981-06-23 Asahi Chem Ind Co Ltd Fluid communicating apparatus
DE3242541A1 (de) * 1982-11-18 1984-05-24 Fresenius AG, 6380 Bad Homburg Zentrifuge
JPS61245855A (ja) * 1985-04-22 1986-11-01 Green Cross Corp:The 連続式血液分離装置
SE454413B (sv) * 1986-09-12 1988-05-02 Alfa Laval Separation Ab Centrifugalseparator med en rotor, vari ett bojligt organ strecker sig ett stycke lengs rotorns omkrets

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043071A1 (fr) * 1999-04-09 2000-10-11 Jean-Denis Rochat Appareil de cetrifugation de liquide et utillisation de cet appareil
WO2000061294A1 (fr) * 1999-04-09 2000-10-19 Haemonetics Corporation Appareil de centrifugation de liquide et utilisation de cet appareil
US6709377B1 (en) 1999-04-09 2004-03-23 Haemonetics Corporation System and method for quick disconnect centrifuge unit
WO2014027016A1 (fr) * 2012-08-14 2014-02-20 Fresenius Kabi Deutschland Gmbh Dispositif centrifuge et procédé d'utilisation de celui-ci
US20150231649A1 (en) * 2012-08-14 2015-08-20 Fresenius Kabi Deutschland Gmbh Centrifuge device and method for operating same
US9409187B2 (en) 2012-08-14 2016-08-09 Fresenius Kabi Deutschland Gmbh Centrifuge device including an actuating element and method for operating same

Also Published As

Publication number Publication date
DE59303933D1 (de) 1996-10-31
JP3323287B2 (ja) 2002-09-09
JPH06206006A (ja) 1994-07-26
ES2092184T3 (es) 1996-11-16
DE4220232A1 (de) 1993-12-23
EP0575858B1 (fr) 1996-09-25
US5350514A (en) 1994-09-27
EP0575858A3 (en) 1994-08-10

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