Abstract
The validation and substantiation of sterilization dose for lyophilized human amnion membrane by gamma irradiation delivered by Co60 source were investigated. The validation experiments were conducted according to ISO 13409 method B. A total of 120 human amnion membranes were collected. Of these, 10 membranes were used for estimation of bioburden and 20 membranes were used for the individual sterility test at verification dose. The average bioburden per product unit with sample item portion (SIP = 1) for lyophilized human amnion membrane was 572 cfu. The verification dose experiments were done at dose of 8.1 kGy and the results of sterility tests showed that human amnion membrane got one positive. Consequently, the sterilization dose of 25 kGy was confirmed and substantiated.
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Abbreviations
- PMMA:
-
PolyMethy MethAcrylate
- ISO:
-
International Standard Organisation
- SAL:
-
Sterility Assurance Level
- SIP:
-
Sample item portion
- CFU:
-
Colony Forming Units
- API:
-
Analytical Profile Index
- I:
-
Intercept
- S:
-
Slope
- CV:
-
Coefficient of Variation
- SD:
-
Standard Deviation
References
Djefal A, Mahlous M, Nacer Khodja A, Larbi Daho Bachir M (1997) Freeze dried radiosterilized human amniotic membrane in the treatment of burn wound. Alg Rev Nuc Sci 1(1):45–48
Hilmy N, Febrida A, Basil A (2000) Validation of radiation sterilisation dose for lyophilized amnion and bone grafts. Cell Tissue Bank 1:143–148
Jefferson S, Crawford CG (1967) Development of industrial sterilization of medical products. Proceedings of the symposium on radiosterilization of medical products held by the international atomic energy agency, Budapest, pp 361–365
Judlin P, Lejeune V, Quentin R, Abdelmoumene N, Aujard Y, Fréte F, Giglio V, Kacet N, Ledare D, Lucas couturier L, Minguet C, Poulain P, Wollner A (2001) Prévention anténatale du risque infectieux bactérien néonatal précoce. Agence nationale d’accréditation et d’évaluation en santé. Service des recommandations et références professionnelles, France, 38 pp
IAEA (2001) Code of practice for the radiation sterilisation of tissue Allograft Requirements for validation and routine control. The IAEA IN /6/052 programme in radiation and tissue Banking
ISO 11137 (1995) Sterilization of health care products – Requirement for validation and routine control – Radiation sterilisation. International Standard Organisation, Geneva
ISO 11737-1 (1995) Sterilisation of medical devices – Microbiological methods – Estimation of population of microorganisms on products. International Standard Organisation, Geneva
ISO/TS 13409 (2002) Sterilization of health care products – Radiation sterilisation – Substantiation of 25 kGy as a sterilization dose for small or infrequent production batches. International Standard Organisation, Geneva
Mesli MF, Mokhtari A (2002) Biostatiatique description et analyse des données en médecine et en biologie, 1er édn. Les éditions universitaires le Fennec, Oran, 77 pp
Mitiche D, Larbi Dahou BM, Bouatou F, Abchiche MO, Djefal A, Mahlous M (1999) Utilisation des membranes amniotiques chez les brûles – A propos de 25 cas. Annals Burns Fire Disasters XII(1):23–24
Tabei M, Sekiguchi M (1995) Evaluation of sterilisation dose for disposable hypodermic needles manufactured under ultra cleaned condition. Radiat Phys Chem 46(4–6):629–632
Zimek Z, Kaluska I (2002) Sterilization dose auditing for various types of medical products. Radiat Phys Chem 63:673–674
Acknowledgements
We would like to thank staff of maternity department of the University Hospital Center of Algiers.
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Djefal, A., Tahtat, D., Nacer Khodja, A. et al. Validation and Substantiation of 25 kGy as Sterilization Dose for Lyophilized Human Amnion Membrane. Cell Tissue Banking 8, 9–12 (2007). https://doi.org/10.1007/s10561-006-9016-x
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DOI: https://doi.org/10.1007/s10561-006-9016-x