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UID420895
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注册时间2019-1-21
最后登录1970-1-1
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The “worst case” position can be caused by mechanical design, uniformity of internal temperature & relative humidity, load pattern and hydrogen peroxide decontamination system. Following locations shall be considered as “worst case” position for analysis:
“最差位点”可由机械结构、内部温湿度分布、装载形式及过氧化氢净化系统的设计造成。如下位点应考虑作为用于分析的“最差位点”:
Sites or processes in which microbial contamination would most likely have an adverse effect on product quality. The terminal target of isolator system & integrated process equipment is that acceptable products can be manufactured with minimum contamination. As a microbial reduction process prior to production, those sites shall be placed during entire VPHP decontamination validation to reduce the possible contamination risk.
可能造成微生物污染从而负面影响产品质量的点位或操作过程,隔离器及其集成工艺设备的最终目的是以最小的污染概率制造合格的产品。作为生产前微生物控制流程,整个VPHP验证过程中应对这些位点进行布置,以降低可能的污染风险;
Sites that would most likely demonstrate the heaviest microbial proliferation during actual production. As a microbial reduction process prior to production, the VPHP decontamination cycle is used to provide minimum bioburden of critical operation during production process. The more microbial of those sites have, the more contamination risk increase. Those sites shall be placed during entire VPHP decontamination validation to reduce the possible contamination risk.
实际操作过程中可能产生最大微生物污染的点位,作为生产前的微生物控制流程,整个VPHP净化过程用于在生产过程中提供最小的生物负载。这些点位的生物负载越大,污染风险增加越高,因此这些位点应进行布置,以降低可能的污染风险;
Sites that represent the most inaccessible or difficult areas during VPHP decontamination cycle. As a surface decontamination agent, H2O2 vapor do not have the same penetration performance as steam decontamination or EO decontamination. If it cannot access or access with less vapor concentration to those sites, the contamination risk will highly increase even with an entire VPHP decontamination cycle. Those sites can simply divide based on following reasons:
整个净化过程中净化汽体无法到达或到达较为困难的点位,作为表面净化剂,汽化过氧化氢并不像湿热净化或环氧乙烷净化一样具有极强的穿透力。如果其无法到达或以较低的浓度到达这些位点,即使执行完整的VPHP净化过程也会极大地增加污染风险。这些位点根据如下原因可分为几类:
“Dead-legs” of mechanical structure: corners of chambers, Gloves/sleeves assemblies with relevant extenders, corners near the sealing ring for different sealing states of the small door of lyophilizer and so on.
机械 “死角” :舱体角落、安装手套支架的手套/袖套组件、冻干机小门不同的密封状态密封圈附件的角落等;
ossible turbulent airflow or high airflow velocity sites (At the point where the wind speed is too high, the molecular distribution rate of hydrogen peroxide is low, and the sterilization effect is low): such as a site perpendicular to the direction of the airflow, edge of glove/sleeves assemblies.
可能的紊流区域或高风速位点(风速过高的点位,过氧化氢分子分布率较低,灭菌效力较低):如与气流方向安装垂直的位点、手套/袖套组件位点;
Less air accessible sites: such as the front corners of platform.
较少气流到达的位点:如操作台面的前端角落。
Sites or processes that represent critical operations: The critical operation process is the process coordinated with open vials & accessories, such as filling, stopper closing and loading & unloading operations. As a microbial reduction process prior to production, following sites shall be considered to place during entire VPHP decontamination validation to reduce the possible contamination risk
关键操作的点位或工艺过程;关键工艺过程应为使用开放的西林瓶及组件进行的工艺,如灌装、加胶塞及冻干进出料等过程。作为生产前微生物控制流程,整个VPHP验证过程中应对如下位点考虑进行布置,以降低可能的污染风险;
The points of higher temperature and the points of lower humidity in the mapping test of temperature and humidity in the condition phase shall be included in the consideration of "worst point", which may cause that this position cannot achieve the preset killing effect. The different operating conditions of the lyophilizer also need to be considered in the temperature and humidity mapping test.
预处理阶段中温湿度均匀性测试中较高温度的点位及较低湿度的位点应纳入 “最差位点”的考量中,这些位点可能会造成该位置无法达到预设的杀灭效果。同时,冻干机的不同工况也需在温湿度均匀性测试中考虑。 |
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