EP0575858B1 - Centrifugeuse - Google Patents
Centrifugeuse Download PDFInfo
- Publication number
- EP0575858B1 EP0575858B1 EP93109499A EP93109499A EP0575858B1 EP 0575858 B1 EP0575858 B1 EP 0575858B1 EP 93109499 A EP93109499 A EP 93109499A EP 93109499 A EP93109499 A EP 93109499A EP 0575858 B1 EP0575858 B1 EP 0575858B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- centrifuge
- separation chamber
- main rotor
- duct
- bearing arrangement
- 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.)
- Expired - Lifetime
Links
Images
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 which is open or can be opened in the radial direction.
- the centrifuge according to the invention is distinguished 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 is formed on the axis of the separation chamber, which is suitable for interaction with the 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 interlock positively 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 as a function of 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, wherein the toothing can 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 engaged, for example, 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 is used 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 from above in a simple manner without the bearing arrangement, which is caused by the upper and lower bearing rollers 6, 7 and the race 8 and 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 further 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.
Claims (12)
- Centrifugeuse comportant une chambre de séparation (1), à laquelle une canalisation (2) est raccordée de façon fixe, et comportant un rotor principal (3), sur lequel la chambre de séparation (1) peut être tourillonnée de manière à pouvoir tourner par rapport à ce rotor, à l'aide d'un dispositif de palier, et comportant un dispositif de guidage (4) monté sur le rotor principal (3) pour guider la canalisation (2) depuis la partie inférieure médiane de la chambre de séparation (1) dans une zone située au-dessus de la centrifugeuse, caractérisée en ce que le dispositif de palier comprend, dans la zone du rotor principal (3), une zone ouverte radialement, pour l'insertion de la canalisation (2) dans le rotor principal (3).
- Centrifugeuse comportant une chambre de séparation (1), à laquelle une canalisation (2) est raccordée de façon fixe, et comportant un rotor principal (3), sur lequel la chambre de séparation (1) peut être tourillonnée de manière à pouvoir tourner par rapport à ce rotor, à l'aide d'un dispositif de palier, et comportant un dispositif de guidage (4) monté sur le rotor principal (3) pour guider la canalisation (2) depuis la partie inférieure médiane de la chambre de séparation (1) dans une zone située au-dessus de la centrifugeuse, caractérisée en ce que le dispositif de palier comprend, dans la zone du rotor principal (3), une zone pouvant être ouverte radialement, pour l'introduction de la canalisation (2) dans le rotor principal (3).
- Centrifugeuse selon la revendication 1 ou 2, caractérisée en ce que le dispositif de palier comporte un axe (5) disposé dans la chambre de séparation (1), ainsi que plusieurs galets de roulement (6,7) qui sont répartis sur la périphérie et sont montés de manière à pouvoir tourner sur le rotor principal (3).
- Centrifugeuse selon la revendication 3, caractérisée en ce que respectivement trois galets de roulement (6,7) sont prévus dans deux plans distants axialement.
- Centrifugeuse selon la revendication 3 ou 4, caractérisée en ce qu'au moins une plaque de roulement (8,9) est formée sur l'axe (5) de manière à coopérer avec les galets de roulement (6,7).
- Centrifugeuse selon la revendication 5, caractérisée en ce que la bague de roulement (8,9) et/ou le galet de roulement (6,7) est profilé.
- Centrifugeuse selon la revendication 5 ou 6, caractérisée en ce que la bague de roulement (8,9) et/ou un galet de roulement (6,7) est pourvue d'un dispositif de blocage axial servant à verrouiller la chambre de séparation (1) dans la direction axiale.
- Centrifugeuse selon l'une des revendications 1-7, caractérisée en ce qu'un élément de transmission (10) servant à entraîner en rotation la chambre de séparation (1) en fonction de la rotation du rotor principal (3) est disposé sur l'axe (5).
- Centrifugeuse selon la revendication 8, caractérisée en ce que l'élément de transmission (10), agencé sous la forme d'une denture, est relié selon une liaison motrice au dispositif d'entraînement du rotor principal, par l'intermédiaire d'un arbre (12), qui est monté de manière à pouvoir tourner sur le rotor principal (3) et comporte un pignon (11).
- Centrifugeuse selon l'une des revendications 3-9, caractérisée en ce que les galets de roulement (6,7) sont agencés élastiquement pour compenser des balourds.
- Centrifugeuse selon l'une des revendications 1-9, caractérisée en ce que l'axe est monté élastiquement sur la chambre de séparation.
- Centrifugeuse selon l'une des revendications 1-10, caractérisée en ce que la chambre de séparation (1) est agencée sous la forme d'un article à usage unique, notamment recyclable.
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 EP0575858A2 (fr) | 1993-12-29 |
EP0575858A3 EP0575858A3 (en) | 1994-08-10 |
EP0575858B1 true 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) |
Families Citing this family (20)
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 |
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 |
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 |
EP1043071A1 (fr) | 1999-04-09 | 2000-10-11 | Jean-Denis Rochat | Appareil de cetrifugation de liquide et utillisation de cet appareil |
US6524231B1 (en) | 1999-09-03 | 2003-02-25 | Baxter International Inc. | Blood separation chamber with constricted interior channel and recessed passage |
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 |
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 |
US7297272B2 (en) | 2002-10-24 | 2007-11-20 | Fenwal, Inc. | Separation apparatus and method |
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 |
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 |
US9334927B2 (en) * | 2011-09-22 | 2016-05-10 | Fenwal, Inc. | Drive system for centrifuge with planetary gear and flexible shaft |
US9347540B2 (en) * | 2011-09-22 | 2016-05-24 | Fenwal, Inc. | Flexible shaft drive system for centrifuge with pivoting arms |
EP2698208A1 (fr) * | 2012-08-14 | 2014-02-19 | Fresenius Kabi Deutschland GmbH | Dispositif de centrifugation et procédé de fonctionnement dýun dispositif de centrifugation |
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)
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 |
-
1992
- 1992-06-20 DE DE4220232A patent/DE4220232A1/de not_active Withdrawn
-
1993
- 1993-06-15 DE DE59303933T patent/DE59303933D1/de not_active Expired - Lifetime
- 1993-06-15 ES ES93109499T patent/ES2092184T3/es not_active Expired - Lifetime
- 1993-06-15 EP EP93109499A patent/EP0575858B1/fr not_active Expired - Lifetime
- 1993-06-17 JP JP17123093A patent/JP3323287B2/ja not_active Expired - Lifetime
- 1993-06-18 US US08/079,162 patent/US5350514A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0575858A2 (fr) | 1993-12-29 |
DE4220232A1 (de) | 1993-12-23 |
US5350514A (en) | 1994-09-27 |
DE59303933D1 (de) | 1996-10-31 |
ES2092184T3 (es) | 1996-11-16 |
JPH06206006A (ja) | 1994-07-26 |
EP0575858A3 (en) | 1994-08-10 |
JP3323287B2 (ja) | 2002-09-09 |
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