EP0278043A2 - Dispositif de suspension pour poches sanguines - Google Patents

Dispositif de suspension pour poches sanguines Download PDF

Info

Publication number
EP0278043A2
EP0278043A2 EP87109849A EP87109849A EP0278043A2 EP 0278043 A2 EP0278043 A2 EP 0278043A2 EP 87109849 A EP87109849 A EP 87109849A EP 87109849 A EP87109849 A EP 87109849A EP 0278043 A2 EP0278043 A2 EP 0278043A2
Authority
EP
European Patent Office
Prior art keywords
blood bag
holder
blood
jaws
clamping
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
EP87109849A
Other languages
German (de)
English (en)
Other versions
EP0278043B1 (fr
EP0278043A3 (en
Inventor
Günter Eberle
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.)
Andreas Hettich GmbH
Original Assignee
Andreas Hettich GmbH and Co KG
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
Priority claimed from DE19873704007 external-priority patent/DE3704007C1/de
Application filed by Andreas Hettich GmbH and Co KG filed Critical Andreas Hettich GmbH and Co KG
Priority to AT87109849T priority Critical patent/ATE67435T1/de
Publication of EP0278043A2 publication Critical patent/EP0278043A2/fr
Publication of EP0278043A3 publication Critical patent/EP0278043A3/de
Application granted granted Critical
Publication of EP0278043B1 publication Critical patent/EP0278043B1/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
    • 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
    • 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
    • B04B2005/0435—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles with adapters for centrifuge tubes or bags

Definitions

  • the invention relates to a holder for blood bags in centrifuges according to the preamble of claim 1.
  • Such mounts have become known in various embodiments. All embodiments have in common that pins or hooks are arranged on the holder and the blood bag to be held in each case is attached to these pins or hooks with its openings arranged in the edge region.
  • the known holders try to solve the problem, the blood bag in the peripheral area, i.e. thus also in the connection area where the connection tubes open into the blood bag, so that there is no kinking of the tubes and the edge area during the centrifugation process. If such a kinking occurred, erytrocytes would be trapped in this area, and if the blood bag was released from its holder after the centrifugation process had taken place, these trapped erytrocytes would flow into the blood plasma now produced and contaminate this plasma.
  • DE-GM 7 314 447, DE-GM 7 224 121 and DE-OS 2 142 737 provide opposing clamping jaws on the upper part of each blood bag, which are clamped in the edge area of the blood bag, pins of the clamping jaws reach through the openings in the edge area of the blood bag.
  • the disadvantage here is that tearing out of the more or less full blood bags depending on the filling state and centrifugal force is not avoided with certainty.
  • the object of the invention is to develop a holder for blood bags of the type mentioned in such a way that the hanging and unhooking of the blood bags in the holder is made considerably easier and that damage to the blood bags by handling or pivoting before centrifuging can be avoided if the holder operates reliably. especially pulling out when centrifuging.
  • the invention is characterized in that the bolts forming the suspension of the blood bag are arranged on jaws, which can be hung on a central part above oblong holes or hooks on a horizontal shaft above the cups by means of angled legs, the jaws swing to the center part under centrifugal force.
  • a blood bag with its intended openings is placed on the bolts of a cheek with bent legs and remains there in a rest position without any clamping action being provided which could damage the blood bag.
  • the hoses of the blood bag are simply led out upwards when the blood bag is hooked onto the bolts of the cheek. This eliminates the need to thread the hoses, since no further part is initially provided on the jaws, which could have a clamping effect.
  • the blood bag In this fastening position, the blood bag can be handled or pivoted without a clamping action already provided which could lead to damage to the blood bag.
  • the blood bag For centrifugation, the blood bag is inserted into a beaker, the bent legs, on the cheek of which the blood bag hangs, are suspended in a horizontal shaft by means of an oblong hole.
  • the edge region of the blood bag which could lead to damage. Only when centrifuging does the cheek press against the edge of the blood bag due to the centrifugal force.
  • the jaws are each integrally assigned to two bent legs.
  • the pins forming the suspension of the blood bag are arranged on a fastening part on which clamping jaws are mounted, which overlap the pins and press the centrifugal force of increasing clamping force against the edge region of the blood bag.
  • pins are not provided on the clamping jaws, but rather on a fastening part of the cup, and that clamping jaws are also arranged in the edge area of the blood bag and thus also in the connection area of the tubes, which clamps the contact pressure in the edge area of the blood bag during the centrifugation process reinforce.
  • a first preferred embodiment according to the subject of claim 5 provides that each jaw is attached to the free, pivotable end of a cranked lever, the pivot axis of the lever being arranged on the fastening part.
  • the jaw is understood as the weight on the free, pivotable part of a lever which is pivoted on one side on the fastening part and the lever is bent so that when a centrifugal force acts, the lever is pivoted due to the weight of the jaw and thereby the jaw is caused by the increasingly strong centrifugation force is pressed against the fastening part.
  • the additional advantage is achieved that the increasing clamping force upon the action of a centrifugal force supports the edge area of the blood bag produced by welding and thus this edge area from tearing out, Warps, unfolds and the like protects.
  • the essential advantage is achieved that the clamping force, which increases during the centrifugation process, does not load the openings in the blood bag, which are attached to the pins, with the centrifugation force, which would entail the risk of tearing out, but rather the entire edge area of the Blood bag is supported by the jaws and pressed against the fastener, thereby resulting these openings are protected from being torn out.
  • the inventive concept of the present invention not only comprises an arrangement with two blood bags, each blood bag being assigned a clamping jaw, but it is also possible to design a holding part in such a way that only a single blood bag is held and fixed with an associated clamping jaw.
  • a particularly space-saving construction results when using two blood bags according to the subject matter of claim 6 when the holding part engages in the space between the cups with a shoulder and there with is connected to the cups, and that in each case a clamping jaw, each with a blood bag, is pivotably mounted on levers, which are all located in the same pivot axis.
  • the blood bag is easy to hold, because the swivel jaw can simply be swiveled up without loosening the corresponding holding device, the blood bag is then hung up on the released pins and the swivel jaw is simply released, which means that it returns to its rest position due to its weight falls, which corresponds to the clamping position at the same time. All parts are held captive on the fastening part, and no complicated insertion or detachment of different parts is required, as are known in the prior art.
  • FIG. 1 the invention is shown with two cups 7, 8, which are attached to a central part 41.
  • the central part 41 has a continuous horizontal shaft 35 in a bore in the upper region, slots being provided in the center of the central part 41 according to FIGS. 2 and 3, in which the shaft 35 is exposed. 5, which are each arranged in pairs on a jaw 38 according to FIG. 4, are hooked onto the shaft 35 via elongated holes 36 according to FIG. 1.
  • the blood bags not shown here, have solidified openings in the upper edge region, into which the bolts 37 according to FIG. 5 are inserted in pairs.
  • the bolts 37 consist of a shaft and a bolt head 43 which protects the blood bag against slipping out.
  • the blood bag then hangs freely on the bolt 37 of the leg 34 with the jaw 38 according to FIG. 5 and is inserted from this position into a cup 7 according to FIG. 1 or FIG. 2.
  • they In a certain pivot position of the jaws 38, they are pushed onto the shaft 35 via the slot-like bore 36 of the leg 34 and pivoted downward. A firm bond of the cup 7 with the blood bags on the bolts 37 of the jaws 34 with respect to the central part 41 and its shaft 35 is thus achieved.
  • the bent legs 34 are then pushed over the shaft 35 and the weight-loaded jaws 38 are pivoted down into their rest or fastening position, so that there is then a clear fastening.
  • the tubes of the blood bag are advantageously very simply attached.
  • the hoses are first led out on recesses 44 according to FIGS. 2, 4 and 6 of the clamping jaws 38 and fixed by hand when the legs 34 are suspended in the shaft 35.
  • the otherwise necessary threading of the hoses through clamping devices is thus eliminated, since the jaws 38 on the side of the bolts 37 are open.
  • the jaws 38 pivot in the direction of the arrow 42, in particular under the action of the forces which occur in the longitudinal direction of the cups 7, 8 during centrifugation.
  • the bolts 37 are inserted with their shafts in holes 40 in the jaws 38.
  • the central part 41 has a bore 39 in which the bolts 37 face each other with their bolt heads 43 in the manner of a stop.
  • Fig. 3 shows the relatively large one-piece design of the jaws 38 and the arrangement of the legs 34 on the shaft 35.
  • the central part 41 has lateral troughs, with the aid of which the entire holder can be grasped.
  • the entire holder with the cups 7, 8 is suspended in an arm of the centrifuging device via bores in the central part 41, which are not shown here.
  • Fig. 2 shows the oval design of the cups 7, 8, which are attached with their straight sides to the central part 41, preferably by riveting. It can here several smaller cups can also be provided symmetrically or a single cup with one or two jaws on a horizontal shaft 35.
  • each blood bag 28 rests in an associated cup 7, 8, both cups 7, 8 being connected to one another by a fastening part 1 in that in the space 6 between the cups 7, 8 the fastening part 1 engages with a shoulder 5 and in the area this approach, a rivet connection 9 is provided, which connects the cups 7, 8 to the approach 5.
  • the cups 7, 8 together with the holder according to the invention are inserted into the suspension of a centrifuge in a manner known per se, the centrifuging force acting in the direction of the arrow 25.
  • Each blood bag has, in a manner known per se, an edge region 30, which is produced by welding and which passes into a cavity filled with blood or, depending on the intended use, filled with another liquid, which essentially fills the cup 7, 8 in each case.
  • Tubes adjoin the edge region 30 of the blood bag 28, only one tube 29 being shown in the exemplary embodiment according to FIG.
  • the object of the holder according to the invention is now to generate a clamping force in the edge area 3O of the blood bag, so that the edge area 3O is securely supported during the centrifugation process and at the same time the tubes 29 are guided out of the blood bag 28 while avoiding kinks.
  • two spaced slots 17 are provided on the upper side of the fastening part, into which one end of each lever 2 pivotably engages, the pivot axis being formed by a dowel pin 18 extending through the entire bore of the fastening part 1.
  • the respective lever 2 is supported with its end with play in the slot 17 in order to ensure easy pivoting.
  • the diameter of the head 10 is dimensioned such that it fits tightly through the opening of the blood bag, as a result of which the opening of the blood bag then lies on the shaft of the reduced diameter of the pin 4.
  • a bore 24 according to FIG. 8 is arranged on the underside of the fastening part on each side of the fastening part 1, into which a stay bolt, not shown, engages, which in turn engages is firmly connected to the hanger of the centrifuge and looks out of the hanger at the top.
  • each pin 4 engages in an associated recess 2O on the inside of the jaw 3, the depth 32 (see FIG. 10) is chosen so that it is avoided with certainty that the head 10 of the pin 4 to the bottom the recess 2O strikes when the jaw is pressed in the direction of arrow 26 with its inner clamping surface against the fastening part 1.
  • the clamping surface of the respective jaw 3 is formed by clamping grooves 23, which receive recesses 12 to 16 between them, through which the tubes 29 of the blood bag 28 are led out without being kinked or pressed.
  • a bevel 33 (see FIG. 10) is provided in order to prevent the clamping jaw from contacting the blood bag outside the edge region 30 of the blood bag 28 and possibly including any liquid located there.
  • the fastening part 1 is provided on its upper side according to FIG. 8 with opposing recessed grips 22, so that the entire fastening part 1 together with the cups attached to it can be easily removed from the hanger of the centrifuge, as a result of which the bores 24 with the stud bolts (not shown) on the hanger disengage.
  • the clamping jaw is simply pivoted upwards in the opposite direction to the direction of arrow 26, a holding bevel 31 being provided on the outside of the clamping jaw according to FIG. 10 in order to ensure favorable gripping with the fingers.
  • the pin 4 is exposed and the blood bag 28 is placed with its opening on the pin, as a result of which the head 10 slips through the opening with a slight deformation of the opening and the blood bag then on the shaft reduced diameter of the pin 4 rests.
  • the clamping jaw is simply released and swivels automatically under the influence of its weight in the direction of arrow 26 into the position shown in FIG. 7, the hose outlets resting correctly in the recesses 12-16 according to FIG. 12.

Landscapes

  • External Artificial Organs (AREA)
  • Centrifugal Separators (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
EP87109849A 1987-02-10 1987-07-08 Dispositif de suspension pour poches sanguines Expired - Lifetime EP0278043B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87109849T ATE67435T1 (de) 1987-02-10 1987-07-08 Halterung fuer blutbeutel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873704007 DE3704007C1 (en) 1986-06-18 1987-02-10 Mounting for blood bag
DE3704007 1987-02-10

Publications (3)

Publication Number Publication Date
EP0278043A2 true EP0278043A2 (fr) 1988-08-17
EP0278043A3 EP0278043A3 (en) 1989-06-07
EP0278043B1 EP0278043B1 (fr) 1991-09-18

Family

ID=6320624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109849A Expired - Lifetime EP0278043B1 (fr) 1987-02-10 1987-07-08 Dispositif de suspension pour poches sanguines

Country Status (3)

Country Link
EP (1) EP0278043B1 (fr)
AT (1) ATE67435T1 (fr)
DE (1) DE3773178D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331138C1 (de) * 1993-09-14 1995-01-05 Heinz Kruessel Halter für Blutbeutel
EP1637172A1 (fr) * 2004-09-21 2006-03-22 Andreas Hettich GmbH & Co. KG Dispositif et méthode de séparation des composantes du sang contenues dans des sacs, et gobelet pour des sacs appartenant au dispositif
US7744821B2 (en) 2004-09-21 2010-06-29 Andreas Hettich Gmbh & Co. Kg Blood bag cup for centrifuges
EP2651491B1 (fr) 2010-12-14 2018-09-12 Maco Pharma Dispositif destine a rompre au moins un element de fermeture dispose a l'interieur d'un tube souple
CN117085862A (zh) * 2023-09-19 2023-11-21 郑州中科生物医学工程技术研究院 一种离心机用血袋仓

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7314447U (de) * 1973-04-16 1973-07-26 Heraeus Christ Gmbh Vorrichtung zum einsetzen von blutbeuteln in schwenkbecher von zentrifugen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331138C1 (de) * 1993-09-14 1995-01-05 Heinz Kruessel Halter für Blutbeutel
EP1637172A1 (fr) * 2004-09-21 2006-03-22 Andreas Hettich GmbH & Co. KG Dispositif et méthode de séparation des composantes du sang contenues dans des sacs, et gobelet pour des sacs appartenant au dispositif
US7744821B2 (en) 2004-09-21 2010-06-29 Andreas Hettich Gmbh & Co. Kg Blood bag cup for centrifuges
EP2651491B1 (fr) 2010-12-14 2018-09-12 Maco Pharma Dispositif destine a rompre au moins un element de fermeture dispose a l'interieur d'un tube souple
CN117085862A (zh) * 2023-09-19 2023-11-21 郑州中科生物医学工程技术研究院 一种离心机用血袋仓

Also Published As

Publication number Publication date
ATE67435T1 (de) 1991-10-15
DE3773178D1 (de) 1991-10-24
EP0278043B1 (fr) 1991-09-18
EP0278043A3 (en) 1989-06-07

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