WO2002038200A2 - Case for a blood bag and method for producing the same - Google Patents
Case for a blood bag and method for producing the same Download PDFInfo
- Publication number
- WO2002038200A2 WO2002038200A2 PCT/EP2001/012873 EP0112873W WO0238200A2 WO 2002038200 A2 WO2002038200 A2 WO 2002038200A2 EP 0112873 W EP0112873 W EP 0112873W WO 0238200 A2 WO0238200 A2 WO 0238200A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cassette
- blood
- plates
- blood bag
- bag
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
- A01N1/02—Preservation of living parts
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
- A01N1/02—Preservation of living parts
- A01N1/0236—Mechanical aspects
- A01N1/0263—Non-refrigerated containers specially adapted for transporting or storing living parts whilst preserving, e.g. cool boxes, blood bags or "straws" for cryopreservation
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
- A01N1/02—Preservation of living parts
- A01N1/0236—Mechanical aspects
- A01N1/0263—Non-refrigerated containers specially adapted for transporting or storing living parts whilst preserving, e.g. cool boxes, blood bags or "straws" for cryopreservation
- A01N1/0268—Carriers for immersion in cryogenic fluid, both for slow-freezing and vitrification, e.g. open or closed "straws" for embryos, oocytes or semen
-
- 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
- A61M1/02—Blood transfusion apparatus
- A61M1/0272—Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or 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
- A61M1/02—Blood transfusion apparatus
- A61M1/0272—Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging
- A61M1/0277—Frames constraining or supporting bags, e.g. during freezing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/16—Holders for containers
-
- 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
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3606—General characteristics of the apparatus related to heating or cooling cooled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/22—Construction of moulds; Filling devices for moulds
Definitions
- the invention relates to a blood bag cassette, in particular the design of a blood bag cassette for the cryopreservation of blood samples, a blood cryopreserve and a method for producing or designing such a blood bag cassette or blood cryopreserve.
- the manual production of blood cryopreserves from whole blood donations is generally known.
- a plastic bag 20 'with the blood donation is inserted into a blood bag cassette 10'.
- the conventional blood bag cassette 10 'shown in plan and side views is formed by two cassette plates 11', 12 ', which in the assembled state form a receptacle for the blood bag 20'.
- the cassette plates are usually made of metal and are additionally equipped with means (not shown) for handling cryopreservation.
- the cassette plates form a container that gives the blood bag a defined shape when it freezes and protects the blood donation in the frozen state against mechanical damage.
- the shape of the Contai ⁇ ners is designed so that the blood in the blood bag 20 'has a layered form, which ensures a rapid, homogeneous freezing of the stored blood.
- the cassette plates 11 ', 12' of the conventional blood bag cartridge 10 'are with a holder means 30' are held together, the two laterally screw clamps (or Bu ⁇ gel) ', 32' comprises 31st For cryopreservation of a blood donation, it is placed in the blood bag 20 'between the cassette plates 11', 12 '. After that, the clips 31 ', 32' are put on and sprayed. Then the actual one takes place Cryopreservation by immersing the blood bag cassette 10 'in a nitrogen bath.
- the conventional blood bag cassette 10 ' has the following disadvantages.
- the brackets 31 ', 32' are disadvantageous with regard to the handling of the cassette and with regard to the preservation result. It is a relatively great effort, particularly with a view to automating cryopreservation, to attach and screw the clips 31 ', 32' in a reliable and correct position. Furthermore, the homogeneity of the freezing process is impaired by the brackets 31 ', 32'. The parts between the brackets interfere with the homogeneity of the freezing process, which has an adverse effect on the chances of survival of the cryopreserved red blood cells. It is also disadvantageous that the handling of the blood bag cassette when the stored blood is removed in the frozen state can be made more difficult due to the icy clamps.
- Another disadvantage of the conventional blood bag cassette 10 ' is the limited safety when handling the blood bag. If, for example, it is injured by tensioning when it is inserted into the cassette 10 'or when it freezes, the blood donation may leak or be completely lost after thawing. Parts of the cryopreservation system can also be contaminated with the escaping blood. Such contamination must be ruled out, especially in the context of an automated blood bank.
- a blood bag cassette for blood samples is known from EP 0 457 782, in which the cassette plates are held with clamps attached to the side.
- this cassette also has the disadvantages mentioned with regard to the handling of the side clips, in particular in automated operation, and with regard to the formation of the Leidenfrost phenomenon.
- DE-OS 44 37 091 describes a freezer container for deep-freezing suspensions of liver cells located in plastic bags.
- the container has a microporous layer to improve the heat transfer from the environment to the container.
- the microporous layer is particularly intended to prevent the Leidenfrost phenomenon. However, it has been shown that this intended effect is achieved only to a limited extent. Furthermore, the microporous layer is a disadvantage in terms of container cleaning.
- the object of the invention is to provide an improved blood bag cassette for the cryopreservation of blood samples, with which the disadvantages of conventional cassettes can be overcome.
- the blood bag cassette according to the invention is intended in particular to form an easy-to-handle holder for the cassette plates, a high level of security when moving enable the donation of blood and improve the homogeneity of the freezing process.
- the object of the invention is also to provide an improved method for producing a blood cryopreserve, which in particular allows homogeneous freezing and safe handling of blood donations in automated cryopreservation systems.
- the basic idea of the invention is to provide a blood bag cassette, which, like the conventional cassette, has two cassette plates per se, with a novel holding device which is formed by a flexible outer sleeve with which the cassette plates are held together.
- the outer shell is preferably made of a plastic film that surrounds the cassette plates.
- the outer casing is formed by a bag surrounding the cassette plates.
- each cassette plate is arranged in its own plate sleeve, the plate sleeves being connected to one another at their outer edges in such a way that they together form the outer sleeve which holds the cassette plates together.
- the transition from conventional clamps or screws to holding the cassette plates with the flexible outer shell has a number of advantages.
- the attachment of the mounting device in the form of a flexible outer shell, in particular in automated cryopreservation systems, is considerably simplified.
- the outer shell encloses the entire cassette so that an inhomogeneous force exercise on the cassette plates is avoided. Inhomogeneous temperature gradients during freezing or thawing are avoided.
- the flexible outer cover also protects against the possible leakage of a blood sample from the blood bag. If the outer shell is formed from a plastic material, the aforementioned problem of the Leidenfrost phenomenon is also solved. No vapor layer forms on the plastic surface.
- the outer casing possibly in cooperation with the cassette plates, forms an evacuated bag or an evacuated cassette.
- the outer shell evenly on the cassette plates, so that they are pressed together.
- the entire cassette is evacuated so that the cassette plates are immediately compressed by the external air pressure.
- the invention also relates to a method for producing a blood cryopreserve, which is distinguished in particular by the fact that a blood bag with a blood donation is arranged between the cassette plates of a blood bag cassette and a flexible outer casing is used to fix it to one another.
- the flexible outer casing is slipped over the cassette plates so that they hold together.
- the outer casing is formed by the cassette casings, which are fixed together at their edges for mutual fixing. B. glued or welded. It is particularly advantageous if the outer casing or the cassette is evacuated before freezing.
- FIG. 1 shows schematic top and side views of a blood bag cassette according to the invention
- Figure 2 shows schematic top and side views of a conventional blood bag cassette (prior art).
- a blood bag cassette 10 consists of two cassette plates 11, 12 and the flexible outer casing 30 (see FIG. 1).
- the cassette plates 11, 12 are formed by metal sheets (for example made of aluminum or copper) with laterally bent edges.
- One of the cassette plates 11, 12 has smaller dimensions, so that in the assembled state the edges of the cassette plates facing one another interlock and the edges of the smaller cassette plate rest on the inner bottom of the larger cassette plate.
- a receptacle (container) for a blood bag 20 is formed by the cassette plates, the base of which is formed by the surface of the cassette plates and the depth by the height of the angled plate edges.
- the internal spacing of the cassette plates can be, for example, 7 mm to accommodate a ready-to-free erythrocyte suspension (about 400 ml from the erythrocyte concentrate containing a cryoadditive from a whole blood donation).
- a projection 13 can be provided with additional devices for handling the blood bag cassette 10, as are known per se. However, this is not a mandatory feature of the invention. Rather, the cassette 10 can also be accessed without access to a separate most protrusion 13 are detected and moved in a cryopreservation apparatus.
- the flexible outer shell 30 is provided as the holding device in FIG.
- the outer casing 30 is partly drawn at a small distance from the cassette plates 11, 12 in the sectional view, but in practice lies firmly on the surface of the cassette plates 11, 12.
- the outer casing 30 is formed by a film tube, which is sealed gas and liquid-tight at the lateral ends of the cassette plates 11, 12.
- the film tube is, for example, welded along the dotted lines 31, 32 (weld seams).
- the outer shell consists for example of elastic polyurethane film, with a thickness of z. B. 0.02 to 0.04 mm. Alternatively, however, other suitable plastic films can also be used, with which the cassette plates 11, 12 are held together securely and firmly.
- the outer casing according to the invention consists of an elastic, rubber-like stretchable film tube that can be pulled over the closed cassette and pulls the plates together. In this case, it would not be necessary to evacuate the outer shell.
- the outer casing 30 is not formed by a piece of tubing, but by a plastic bag which is closed at least on one side, the cut and dimensions of which are chosen such that the assembled cassette plates 11, 12 with the blood bag 20 are in the bag introduced and held in a form-fitting manner. If the spatial orientation of the bag is maintained in the cryopreservation system and a blood bank, it is not imperative necessary to close it. Otherwise, as in the illustration in FIG. 1, the bag can be welded.
- the outer shell 30 is evacuated.
- the outer casing is optionally equipped with a vent connection 33 (shown in broken lines in FIG. 1).
- the inside of the casing is evacuated to a slight negative pressure, so that the external air pressure presses the outer casing onto the cassette plates.
- the outer sides of the cassette plates have a surface structure which ensures that air is removed from the outer shell even when the outer shell is closely fitting.
- the structuring is preferably formed by a groove 14 running around the outer edge of the cassette plates (see FIG. 1).
- the (ventilation) groove 14 and the ventilation socket 33 are positioned relative to one another in such a way that the ventilation socket 33 is arranged above the groove 14.
- the groove can also run from the edge on the outside.
- the vent connector 33 can be used simultaneously as a connecting part with a pump device as a handle or clamp for handling the cassette in a cryopreservation system.
- the cassette disks are each enclosed by a disk sleeve (not shown).
- An outer shell made of plastic material completely surrounding the cassette plate is provided on each cassette plate.
- Each disk case has a larger area than the cassette disk that is accommodated in each case.
- the plate casing protrudes beyond the edge of the plate. The mutual connection of the edges of the plate sleeves lying against one another in the assembled state takes place, for example, by welding. Alternatively, especially if the evacuation of the casing is not important, the edges of the plate casings can also be coupled with a zipper connection.
- only a disk sleeve can be provided as the outer sleeve according to the invention, which accommodates both cassette disks lying next to one another in a planar manner.
- the cassette plates are arranged one on top of the other.
- the still free wheels of the disc shell are glued or welded together.
- At least one edge of the plate casing is connected to an edge adjacent to the cassette in the folded state in the manner of an expandable bellows.
- the cassette plates are pressed apart by expanding the bellows (bellows).
- the outer casing is welded tightly, so that the cassette plates are held firmly against one another.
- an evacuation of the outer shell can also be provided, as described above.
- a particular advantage of the invention can be seen when considering the freezing results that can be achieved with the blood bag cassette according to the invention.
- the hemolysis rate of the thawed erythrocytes can be used as a parameter for assessing the success of a freezing process.
- the hemolysis rate indicates what percentage of the cells examined were damaged by the freezing process. It has been shown that with a conventional cassette (without the outer cover according to the invention) medically intolerable hemolysis rates occur.
- the hemolysis values are considerably improved, as a result of which cryopreserved products can be produced not only economically but also with medically tolerable hemolysis results.
- cassette plates do not have to be aligned separately, particularly when the outer casing is evacuated.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Dentistry (AREA)
- Environmental Sciences (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002216017A AU2002216017A1 (en) | 2000-11-13 | 2001-11-07 | Case for a blood bag and method for producing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10056181.0 | 2000-11-13 | ||
DE10056181A DE10056181C1 (en) | 2000-11-13 | 2000-11-13 | Blood bag cassette for cryostorage of blood samples has reception space for blood bag defined between 2 cooperating cassette plates |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2002038200A2 true WO2002038200A2 (en) | 2002-05-16 |
WO2002038200A3 WO2002038200A3 (en) | 2002-08-01 |
WO2002038200A8 WO2002038200A8 (en) | 2003-12-18 |
Family
ID=7663116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/012873 WO2002038200A2 (en) | 2000-11-13 | 2001-11-07 | Case for a blood bag and method for producing the same |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002216017A1 (en) |
DE (1) | DE10056181C1 (en) |
WO (1) | WO2002038200A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9346571B2 (en) | 2013-10-31 | 2016-05-24 | Pall Corporation | Multi-chamber freezing bag |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1711214A1 (en) * | 2004-02-02 | 2006-10-18 | Interface Multigrad Technology (IMT) Ltd. | Device for directional cooling of biological matter |
WO2005072523A2 (en) | 2004-02-02 | 2005-08-11 | I.M.T. Interface Multigrad Technology Ltd. | Biological material and methods and solutions for preservation thereof |
ATE460947T1 (en) | 2004-06-07 | 2010-04-15 | Core Dynamics Ltd | METHOD FOR STERILIZING BIOLOGICAL PREPARATIONS |
US8037696B2 (en) | 2004-08-12 | 2011-10-18 | Core Dynamics Limited | Method and apparatus for freezing or thawing of a biological material |
EP1909565A2 (en) | 2005-08-03 | 2008-04-16 | Interface Multigrad Technology (IMT) Ltd. | Somatic cells for use in cell therapy |
DE102010020374A1 (en) * | 2010-05-12 | 2011-11-17 | Bms Medical Technologies Gmbh | Protective sheath for blood bag in e.g. clinic, has pocket made of plastic and comprising lockable aperture and vent hole, bag arranged at inner side of pocket through aperture, and radio frequency identification element arranged on pocket |
EP3563886A3 (en) * | 2018-05-03 | 2020-01-22 | Fenwal, Inc. | Optical detection of an image on a container |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0457782A1 (en) | 1989-02-08 | 1991-11-27 | Secr Defence Brit | A method of freezing red blood cells. |
WO1995009597A1 (en) | 1993-10-02 | 1995-04-13 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Freezing frames for blood bags |
DE4437091A1 (en) | 1994-10-17 | 1996-04-18 | Andreas Dr Med Sputtek | Freezer container |
WO1997031609A1 (en) | 1996-03-02 | 1997-09-04 | Sankryo M & A Treudhandvermittlung-Consult Gmbh & Co. Technologie Kg | Device for storing collection containers for individually defined quantities of blood |
DE19746610A1 (en) | 1997-10-22 | 1999-05-06 | Vita 34 Ges Fuer Zelltransplan | Arrangement for storing blood or blood products in bags |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4994021A (en) * | 1988-11-15 | 1991-02-19 | Baxter International Inc. | Apparatus and method for collecting and freezing blood plasma |
US5168712A (en) * | 1990-03-19 | 1992-12-08 | Instacool Inc. Of North America | Rapid cooling through a thin flexible membrane |
-
2000
- 2000-11-13 DE DE10056181A patent/DE10056181C1/en not_active Expired - Fee Related
-
2001
- 2001-11-07 AU AU2002216017A patent/AU2002216017A1/en not_active Abandoned
- 2001-11-07 WO PCT/EP2001/012873 patent/WO2002038200A2/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0457782A1 (en) | 1989-02-08 | 1991-11-27 | Secr Defence Brit | A method of freezing red blood cells. |
WO1995009597A1 (en) | 1993-10-02 | 1995-04-13 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Freezing frames for blood bags |
DE4437091A1 (en) | 1994-10-17 | 1996-04-18 | Andreas Dr Med Sputtek | Freezer container |
WO1997031609A1 (en) | 1996-03-02 | 1997-09-04 | Sankryo M & A Treudhandvermittlung-Consult Gmbh & Co. Technologie Kg | Device for storing collection containers for individually defined quantities of blood |
DE19746610A1 (en) | 1997-10-22 | 1999-05-06 | Vita 34 Ges Fuer Zelltransplan | Arrangement for storing blood or blood products in bags |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9346571B2 (en) | 2013-10-31 | 2016-05-24 | Pall Corporation | Multi-chamber freezing bag |
Also Published As
Publication number | Publication date |
---|---|
WO2002038200A8 (en) | 2003-12-18 |
DE10056181C1 (en) | 2002-03-07 |
AU2002216017A1 (en) | 2002-05-21 |
WO2002038200A3 (en) | 2002-08-01 |
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