DE19511126A1 - Substrate cell layers, e.g. for transplantation - Google Patents
Substrate cell layers, e.g. for transplantationInfo
- Publication number
- DE19511126A1 DE19511126A1 DE1995111126 DE19511126A DE19511126A1 DE 19511126 A1 DE19511126 A1 DE 19511126A1 DE 1995111126 DE1995111126 DE 1995111126 DE 19511126 A DE19511126 A DE 19511126A DE 19511126 A1 DE19511126 A1 DE 19511126A1
- Authority
- DE
- Germany
- Prior art keywords
- cell
- cell layer
- layer
- cells
- substrate
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/06—Animal cells or tissues; Human cells or tissues
- C12N5/0602—Vertebrate cells
- C12N5/0625—Epidermal cells, skin cells; Cells of the oral mucosa
- C12N5/0629—Keratinocytes; Whole skin
-
- 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
- A01N1/0273—Transport containers
-
- 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
- A01N1/0278—Physical preservation processes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/0068—General culture methods using substrates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
- A61F2002/0086—Special surfaces of prostheses, e.g. for improving ingrowth for preferentially controlling or promoting the growth of specific types of cells or tissues
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2533/00—Supports or coatings for cell culture, characterised by material
- C12N2533/50—Proteins
- C12N2533/54—Collagen; Gelatin
Abstract
Description
Die Erfindung betrifft gezüchtete Zellschichten, Verfahren zu ihrer Herstellung und ein Transportsystem für Zellschichten, wie Haut-Transplantationsgewebe, die unter definierten Bedingungen vom Gewinnungs- zum Einsatzort gelangen müssen.The invention relates to cultured cell layers, processes for their production and a Transport system for cell layers, such as skin graft tissue, under defined conditions must come from the extraction to the place of use.
Seitdem Bell und Mitarbeiter partiell in vitro rekonstruierte Gewebe der Lederhaut gewonnen hatten (Bell et al., Proc. Natl. Acad. Sci. 76 (1979) 1274), sind die Verfahren zur Gewinnung von Hautgewebe ständig weiterentwickelt worden. Zuerst hatten Green und Mitarbeiter auch die Züchtung von Keratinocyten über einen längeren Zeitraum beschrieben (Green, H. et al., Proc. Natl. Acad.Sci. 76 (1979) 5665): Die Epidermisschicht entwickelte sich unter Bildung eines drei bis fünf Zellen dicken Gewebes sehr schnell. Diese Gewebe, bei Patienten transplantiert, differenzierten sich in situ weiter. Patienten mit schweren Verbrennungen konnten mit diesem Verfahren gerettet werden (G. Gallico et al., New England J. Med., 311 (1984) 448). Mit dem Green-Verfahren (US-(PS-Patentschrift) 4456687) kann aus einer Biopsie von 2 cm² innerhalb von drei Wochen ein Quadratmeter Epidermis gewonnen werden.Since then, Bell and co-workers have partially reconstructed dermis tissues in vitro (Bell et al., Proc. Natl. Acad. Sci. 76 (1979) 1274) are the methods for the extraction of skin tissue have been continuously developed. First had green and co-workers also grew keratinocytes over an extended period of time (Green, H. et al., Proc. Natl. Acad. Sci. 76 (1979) 5665): Die Epidermal layer developed to form a three to five cell thick Fabric very quickly. These tissues, transplanted in patients, differentiated continue in situ. Patients with severe burns could use this procedure be saved (G. Gallico et al., New England J. Med., 311 (1984) 448). With the Green method (US (PS patent) 4456687) can be obtained from a biopsy of 2 cm² a square meter of epidermis can be obtained within three weeks.
Die Herstellung des Gewebes und sein Transport zum Einsatzort ist mit einer Reihe technischer Probleme verbunden. Einen besonderen Raum nehmen dabei die Trägermaterialien ein, die einen Transport des Gewebes und die Transplantation auf den Patienten ermöglichen müssen. Deshalb sind vielfältige Trägermaterialien vorgeschlagen worden, auf biologischer und auf synthetischer Grundlage. Gemäß DD 2 97 678 wird ein biologisches Trägermaterial beschrieben, das aus einer Mischung von Plasmaproteinkonzentrat und Calciumthrombin besteht. Andere Vorschläge bestehen in der Verwendung von Bindegewebszellen (DE 38 29 183), Mischtransplanten aus Eigenhaut und Leichenhaut (DE 35392709), Kadaver-Allotransplantaten, Xeno transplantaten von Schweinehaut, künstlicher Haut, Kollagenen oder Kunststoffen, wie thermoplastischen Copolyestern (DE 26 51 685, 37 16 907, 37 11 699, 41 27 570; WO 92 10 6179, 91 116 010; US 52 82 859, 51 47 401, 48 88 291, 48 83 487, 46 42 118).The production of the fabric and its transport to the place of use is with a number technical problems. They take up a special space Carrier materials that are used to transport tissue and transplant must enable the patient. That is why there are diverse carrier materials have been proposed on a biological and synthetic basis. According to DD 2 97 678 describes a biological carrier material which consists of a mixture of Plasma protein concentrate and calcium thrombin exist. Other suggestions are in the use of connective tissue cells (DE 38 29 183), mixed transplants Own skin and corpse skin (DE 35392709), carcass allografts, Xeno grafts of pig skin, artificial skin, collagens or plastics, such as thermoplastic copolyesters (DE 26 51 685, 37 16 907, 37 11 699, 41 27 570; WO 92 10 6179, 91 116 010; US 52 82 859, 51 47 401, 48 88 291, 48 83 487, 46 42 118).
Der Lebend-Lagerfähigkeit und der Aufrechterhaltung der koloniebildenden Effektivität von Epithelzellschichten widmet sich die EP 507849 (US 5100676, WO 91/11100, DE 69100748). Darin wird die Aufbewahrung der Zellschicht (z. B. Keratinocyten) in einem physiologisch verträglichen Medium, das Aufbringen der kohäsiven Schicht auf ein nicht anhaftendes Substrat, die Verpackung als Verband für Hautwunden und die Aufbewahrung als Kühlpackung für einen Zeitraum bis zu 26 Stunden beschrieben.Live shelf life and maintenance of colony-forming effectiveness EP 507849 (US 5100676, WO 91/11100, DE. is devoted to epithelial cell layers 69100748). This includes the storage of the cell layer (e.g. keratinocytes) in one physiologically acceptable medium, the application of the cohesive layer on a non adhesive substrate, the packaging as a dressing for skin wounds and the Storage as a cool pack for a period of up to 26 hours is described.
Der Erfindung liegt die Aufgabe zugrunde, neue Zellschichten und ein Transportsystem für Zellschichten zu entwickeln. Die Aufgabe wurde dadurch gelöst, daß biologische und/oder nichtbiologische Trägermaterialien als nicht anhaftende Substrate zur Bildung von Zellschichten eingesetzt werden, insbesondere neue kollagenhaltige oder gelartige Träger sowie Amnion oder azelluläre Dermis. Auf diese Träger werden die zur Schichtbildung vorgesehenen Zellen gebracht und in einem Nährmedium gezüchtet. Als Zelltypen finden erfindungsgemäß Epithelzellen (Keratinozyten), Knorpelzellen (Chondrozyten), Fibroblasten, Endothelzellen oder tierische Zellen Anwendung. Geeignete Nährmedien sind vor allem solche Kulturlösungen, die Aminosäuren, Fettsäuren, Puffersalze, Spurenelemente und Vitamine enthalten, ebenso bekannte Nährmedien, wie MEM oder Ham F 12, aber auch das Zellkulturmedium MCDB 153.The invention has for its object new cell layers and a transport system to develop for cell layers. The problem was solved in that biological and / or non-biological carrier materials as non-adherent substrates for the formation of Cell layers are used, especially new collagen-containing or gel-like Carrier as well as amnion or acellular dermis. On these carriers are the Stratification cells are brought and grown in a nutrient medium. As According to the invention, cell types find epithelial cells (keratinocytes), cartilage cells (Chondrocytes), fibroblasts, endothelial cells or animal cells application. Suitable nutrient media are above all those culture solutions, the amino acids, Contain fatty acids, buffer salts, trace elements and vitamins, also known ones Culture media such as MEM or Ham F 12, but also the cell culture medium MCDB 153.
Die Aufgabe, ein Transportsystem für Zellschichten zu entwickeln, wurde durch einen Transportbehälter gelöst, der aus einer bruchsicheren Außenverkleidung und einem Innenraum besteht, der lose Zwischenböden zur Lagerung der Zellschichten enthält - wobei die Zwischenböden durch Stempel fixiert werden - und der - neben dem Nährmedium - Heizquellen zur Temperaturregelung und eine steuerbare CO₂-Zufuhr enthält. Die Außenverkleidung besteht vorzugsweise aus Edelmetall, die Isolierung des Behälters aus Kunststoff, vorzugsweise aus Polystyrol. Als Heizquellen sind Batterien bzw. aufladbare Akkumulatoren vorgesehen. Dieses Transportsystem, eine Kombination aus bekannten und aus neuen Teilen, eignet sich für bekannte wie für die erfindungsgemäßen Zellschichten, die aus einer Substrat-Zellschicht-Einheit bestehen wobei als Substrat neue kollagenhaltige oder gelartige Träger sowie Amnion oder azelluläre Dermis und als zur Schichtbildung vorgesehene Zelltypen Epithelzellen (Keratinozyten), Knorpelzellen (Chondrozyten), Fibroblasten, Endothelzellen oder tierische Zellen Anwendung finden. Es hat sich überraschenderweise herausgestellt, daß die mit dem erfindungsgemäßen Transportsystem möglichen Transportbedingungen ein Anwachsen der Zellschichten garantieren und die Koloniebildung der Zellen in vivo auf der Wunde weder behindern noch beeinträchtigen. Sie ermöglichen lange Transportzeiten und das Einhalten der gewünschten Innentemperatur von 5 bis 40°C und für z. B. Epithelzellen aus Keratinozyten von 20 bis 37°C. Das Transportsystem ist zum Transport biologischer Materialien, die lebende Zellen enthalten, geeignet - z. B. patienteneigenen Materials für autogene, von Fremdmaterialien für allogene Transplan tationen wie auch xenogener Materialien.The task of developing a transport system for cell layers was met by a Transport container solved, which consists of a shatterproof outer panel and a Interior consists of loose shelves for storing the cell layers - whereby the intermediate floors are fixed by stamps - and the - next to the Culture medium - heating sources for temperature control and a controllable CO₂ supply contains. The outer lining is preferably made of precious metal, the insulation of the Container made of plastic, preferably made of polystyrene. Batteries are the heat sources or rechargeable batteries are provided. This transport system, a combination from known and from new parts, is suitable for known as for the cell layers according to the invention, which consist of a substrate-cell layer unit where as a substrate new collagen or gel-like carriers and amnion or acellular dermis and epithelial cells as cell types intended for layer formation (Keratinocytes), cartilage cells (chondrocytes), fibroblasts, endothelial cells or animal cells find application. Surprisingly, it turned out that the possible transport conditions with the transport system according to the invention guarantee growth of the cell layers and colony formation of the cells in vivo do not interfere with or affect the wound. They allow for a long time Transport times and compliance with the desired internal temperature from 5 to 40 ° C and for z. B. epithelial cells from keratinocytes from 20 to 37 ° C. The transport system is suitable for transporting biological materials containing living cells - e.g. B. patient's own material for autogenous, foreign material for allogeneic transplan as well as xenogenic materials.
Die Erfindung soll anhand von Ausführungsbeispielen näher erläutert werden.The invention will be explained in more detail with the aid of exemplary embodiments.
Allgemeine Vorschrift. Auf ein Substrat in einem Nährmedium wird unter üblichen Bedingungen ein die spätere Zellschicht bildender Zelltyp gesät, kultiviert und durch Vermehrung zur Substrat-Zell schicht gebracht.General rule. Under normal conditions, a substrate in a nutrient medium becomes the later one Cell layer-forming cell type sown, cultivated and by multiplication to the substrate cell brought shift.
Gem. Beispiel 1 wird das kollagenhaltige Trägermaterial Opragen mit Keratinozyten zu einer Opragen-Keratinozyten-Zellschicht gezüchtet.According to Example 1, the collagen-containing carrier material Opragen with keratinocytes an Opragen keratinocyte cell layer.
Gem. Beispiel 1a wird eine Amnion-Keratinozyten-Zellschicht gebildet.According to Example 1a, an amniotic keratinocyte cell layer is formed.
Gem. Beispiel 1a wird aus einer azellulären Dermis als Substrat eine Azellulärdermis-Ke ratinozyten-Zellschicht gebildet.According to Example 1a, an acellular dermis nucleus is transformed from an acellular dermis as a substrate Ratinocyte cell layer formed.
gem. Beispiel 1 bis 1c
werden gebildet:
Opragen-Chondrozyten-Zellschicht
Opragen-Fibroblasten-Zellschicht
Opragen-Endothel-Zellschicht
Amnion-Chondrozyten-Zellschicht
Amnion-Fibroblasten-Zellschicht
Amnion-Endothel-Zellschicht
Azellulärdermis-Chondrozyten-Zellschicht
Azellulärdermis-Fibrobasten-Zellschicht
Azellulärdermis-Endothel-Zellschicht
Gel-Keratinozyten-Zellschicht
Gel-Chondrozyten-Zellschicht
Gel-Fibroblasten-Zellschicht
Gel-Endothel-Zellschicht
Tierzell-Keratinozyten-Zellschicht
Tierzell-Cho ndrozyten-Zellschicht
Tierzell-Fibroblasten-Zellschicht
Tierzell-Endothel-Zellschicht.acc. Examples 1 to 1c are formed:
Opragen chondrocyte cell layer
Opragen fibroblast cell layer
Opragen endothelial cell layer
Amnion chondrocyte cell layer
Amnion fibroblast cell layer
Amnion endothelial cell layer
Azellular dermis chondrocyte cell layer
Acellular dermis fibroblast cell layer
Azellular dermis endothelial cell layer
Gel keratinocyte cell layer
Gel chondrocyte cell layer
Gel fibroblast cell layer
Gel endothelial cell layer
Animal cell keratinocyte cell layer
Animal cell chondrocyte cell layer
Animal cell fibroblast cell layer
Animal cell endothelial cell layer.
Fig. 1 Fig. 1
BezugszeichenlisteReference list
1 Außenverkleidung
2 Zwischenböden
3 Stempel
4 CO₂-Zufuhr
5 Heizquellen 1 outer panel
2 shelves
3 stamps
4 CO₂ supply
5 heating sources
Der Transportbehälter besteht aus einer bruchsicheren Außenverkleidung und einem Innenraum, der lose Zwischenböden zur Lagerung der Zellschichten enthält - die durch Stempel fixiert werden - und der - neben dem Nährmedium - Heizquellen zur Temperaturregelung und eine steuerbare CO₂-Zufuhr enthält. Die Außenverkleidung besteht vorzugsweise aus Edelmetall, die Isolierung des Behälters aus Kunststoff, vorzugsweise aus Polystyrol. Als Heizquellen sind Batterien bzw. aufladbare Akkumulatoren vorgesehen.The transport container consists of an unbreakable outer casing and a Interior that contains loose shelves for storing the cell layers - through Stamps are fixed - and - in addition to the nutrient medium - heating sources for Contains temperature control and a controllable CO₂ supply. The outer cladding consists preferably of precious metal, the insulation of the container from plastic, preferably made of polystyrene. Batteries or rechargeable batteries are suitable as heating sources Accumulators provided.
Dieses Transportsystem, eine Kombination aus bekannten und aus neuen Teilen, eignet sich für bekannte wie für die erfindungsgemäßen Zellschichten, die aus einer Substrat-Zell schicht-Einheit bestehen, wobei als Substrat neue kollagenhaltige oder gelartige Träger sowie Amnion oder azelluläre Dermis und als zur Schichtbildung vorgesehene Zelltypen Epithelzellen (Keratinozyten), Knorpelzellen (Chondrozyten), Fibroblasten Endothelzellen oder tierische Zellen Anwendung finden.This transport system, a combination of known and new parts, is suitable are known as for the cell layers according to the invention, which consist of a substrate cell Layer unit consist, with new collagen-containing or gel-like as substrate Carrier and amnion or acellular dermis and as intended for layer formation Cell types epithelial cells (keratinocytes), cartilage cells (chondrocytes), fibroblasts Endothelial cells or animal cells are used.
Die Transportbedingungen garantieren ein Anwachsen der Zellschichten und die Koloniebildung der Zellen in vivo auf der Wunde. Sie ermöglichen lange Transportzeiten und das Einhalten der gewünschten Innentemperatur von 5 bis 40°C und für z. B. Epithelzellen aus Keratinozyten von 20 bis 37°C. Das Transportsystem ist zum Transport biologischer Materialien, die lebende Zellen enthalten, geeignet - z. B. patienteneigenen Materials für autogene, von Fremdmaterialien für allogene Transplantationen wie auch xenogener Materialien.The transport conditions guarantee growth of the cell layers and the Colony formation of the cells in vivo on the wound. They enable long transport times and compliance with the desired internal temperature of 5 to 40 ° C and for z. B. Epithelial cells from keratinocytes at 20 to 37 ° C. The transport system is for Transport of biological materials containing living cells is suitable - e.g. B. patient's own material for autogenous, foreign material for allogeneic Transplants as well as xenogenic materials.
Claims (27)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29520965U DE29520965U1 (en) | 1995-03-19 | 1995-03-19 | Cell layers and transport system for cell layers |
DE1995111126 DE19511126A1 (en) | 1995-03-19 | 1995-03-19 | Substrate cell layers, e.g. for transplantation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995111126 DE19511126A1 (en) | 1995-03-19 | 1995-03-19 | Substrate cell layers, e.g. for transplantation |
Publications (1)
Publication Number | Publication Date |
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DE19511126A1 true DE19511126A1 (en) | 1996-09-26 |
Family
ID=7757826
Family Applications (1)
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DE1995111126 Ceased DE19511126A1 (en) | 1995-03-19 | 1995-03-19 | Substrate cell layers, e.g. for transplantation |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0918529A1 (en) * | 1997-02-28 | 1999-06-02 | Tseng, Scheffer C.G. | Grafts made from amniotic membrane; methods of separating, preserving, and using such grafts in surgeries |
DE102010012790A1 (en) * | 2010-03-25 | 2011-09-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Incubator device and method for its operation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8134412U1 (en) * | 1981-11-26 | 1982-05-06 | Schinkel, Otto, 3406 Bovenden | CULTURAL VESSEL |
GB2255571A (en) * | 1991-04-10 | 1992-11-11 | Bibby Sterilin Ltd | Cell culture on silicone membranes, and wound models |
US5266480A (en) * | 1986-04-18 | 1993-11-30 | Advanced Tissue Sciences, Inc. | Three-dimensional skin culture system |
WO1994004657A1 (en) * | 1992-08-13 | 1994-03-03 | The Trustees Of The University Of Pennsylvania | Bioactive material template for in vitro synthesis of bone tissue |
US5326706A (en) * | 1989-07-17 | 1994-07-05 | Research Foundation Of State University Of New York | Homeostatic organ preservation system |
-
1995
- 1995-03-19 DE DE1995111126 patent/DE19511126A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8134412U1 (en) * | 1981-11-26 | 1982-05-06 | Schinkel, Otto, 3406 Bovenden | CULTURAL VESSEL |
US5266480A (en) * | 1986-04-18 | 1993-11-30 | Advanced Tissue Sciences, Inc. | Three-dimensional skin culture system |
US5326706A (en) * | 1989-07-17 | 1994-07-05 | Research Foundation Of State University Of New York | Homeostatic organ preservation system |
GB2255571A (en) * | 1991-04-10 | 1992-11-11 | Bibby Sterilin Ltd | Cell culture on silicone membranes, and wound models |
WO1994004657A1 (en) * | 1992-08-13 | 1994-03-03 | The Trustees Of The University Of Pennsylvania | Bioactive material template for in vitro synthesis of bone tissue |
Non-Patent Citations (2)
Title |
---|
93:281107 * |
Biosis: 93:455063 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0918529A1 (en) * | 1997-02-28 | 1999-06-02 | Tseng, Scheffer C.G. | Grafts made from amniotic membrane; methods of separating, preserving, and using such grafts in surgeries |
EP0918529A4 (en) * | 1997-02-28 | 2003-02-05 | Scheffer C G Tseng | Grafts made from amniotic membrane; methods of separating, preserving, and using such grafts in surgeries |
DE102010012790A1 (en) * | 2010-03-25 | 2011-09-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Incubator device and method for its operation |
DE102010012790B4 (en) * | 2010-03-25 | 2015-08-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Incubator device and method for its operation |
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