摘 要 目的:通過微生物侵入挑戰性試驗,確認采用預灌封注射器包裝的小容量注射劑產品的密封完整性。方法:按無菌生產要求在預灌封注射器內灌裝胰胨大豆肉湯培養基,培養14 d后,置于大腸埃希菌菌懸液中浸泡4 h。浸泡后樣品繼續培養7 d,觀察細菌侵入情況。結果:培養7 d后,注射器內培養基均無細菌生長。結論:預灌封注射器密封系統能滿足密封完好性的要求,可保證產品不受細菌侵入。
關鍵詞 預灌封注射器 細菌侵入 密封系統
中圖分類號:TQ469; R944.1 文獻標識碼:B 文章編號:1006-1533(2012)07-0036-02
Study on the integrity of the prefilled syringes with sealing system
FAN Su-jun,XIA Jie-min
(Shanghai Haohai Biological Technology Co., Ltd., Shanghai, 201613)
ABSTRACT Objective: Seal integrity of the prefilled syringes containing small volume of injection product was confirmed by the bacterial challenging test. Methods: According to production requirements, the pre-casting sterile syringe filling trypticase soy broth was incubated for 14 days, soaked in a suspension containing Escherichia coli for 4 hours. Bacterial contamination was observed after samples were incubated for 7 days. Results: The syringes were not contaminated by the tested E.coli. Conclusion: Prefilled syringes with sealing system can meet the requirements of integrity and protect the products from bacterial invasion.
KEY WORDS prefilled syringes; bacterial invasion; integrity
預灌封注射器是國內外20世紀90年代開發的一種新型藥品包裝形式,主要用于小容量注射劑的包裝儲存并直接用于注射或用于眼科、耳科、骨科等手術沖洗。預灌封注射器由玻璃針管(中性玻璃)、活塞(鹵化丁基橡膠)、針帽(異戊丁基橡膠)、推桿(PS)和/或注射針組成(圖1)。
藥液直接裝入針管內,通過活塞將藥液密封儲存,使用時用推桿推出。對于無菌產品,抽樣檢驗的無菌檢查存在的局限性是很明顯的[1],從統計學上說,一個陽性的無菌測試結果不是結論性的;同樣,陰性的無菌測試結果并不證明封閉體系已起到了它應起的作用[2]。預灌封注射器密封系統的完好性,有必要通過細菌侵入挑戰性試驗,確認密封性的完整程度,防止細菌入侵以確保產品質量安全可靠[3]。
1 試驗材料與儀器
預灌封注射器(美國BD公司);SV122V型全自動灌裝機(德國INOVA);SHP-250型生化培養箱;胰胨大豆肉湯培養基(上海博微生物科技有限公司);……