会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Filtration method
    • 过滤方法
    • US09272245B2
    • 2016-03-01
    • US12993512
    • 2009-04-30
    • Koichiro Yanagida
    • Koichiro Yanagida
    • B01D69/08B01D69/12B01D71/34B01D71/68B01D71/82C07K1/00B01D61/14A61L2/00B01D61/22B01D67/00B01D69/02C07K1/34
    • B01D61/145A61L2/0017B01D61/22B01D67/0093B01D69/02B01D69/08B01D69/12B01D71/34B01D71/68B01D2323/02B01D2323/38B01D2325/04B01D2325/20B01D2325/36C07K1/34
    • Provided is a filtration method for the step of removing viruses in a process of producing a protein preparation during which an intermediate protein preparation with a high protein concentration flows at high pressure to a virus removal filter. The filtration method employs a virus removal filter which has a close fitting nozzle of which the inlet at least has a pressure resistance of 600 kPa or more, and an effective area of the virus removal membrane of at least 0.0001 m2 and no more than 0.03 m2. An intermediate protein preparation with the protein concentration raised to at least 20 mg/ml and no more than 100 mg/ml by means of a purification process flows down to said virus removal filter under conditions in which the inlet pressure of the intermediate protein preparation is at least 150 kPa and no more than 600 kPa, the average protein filtration speed is at least 1.0 kg/m2/hr, and the filtration time is at least 1 hour and no more than 5 hours, to give an intermediate protein preparation filtrate with a viral removal rate (LRV) of ≧3.
    • 本发明提供一种过滤方法,用于在制备蛋白质制剂的过程中除去病毒的步骤,其中具有高蛋白质浓度的中间蛋白质制剂在高压下流向病毒去除过滤器。 过滤方法采用病毒去除过滤器,其具有紧密喷嘴,入口至少具有600kPa以上的耐压性,病毒去除膜的有效面积为至少0.0001m 2且不大于0.03m 2 。 通过纯化过程将蛋白质浓度升至至少20mg / ml且不超过100mg / ml的中间体蛋白质制剂在中间体蛋白质制剂的入口压力为 至少150kPa且不超过600kPa,平均蛋白质过滤速度为至少1.0kg / m 2 / hr,并且过滤时间为至少1小时且不超过5小时,得到具有 病毒清除率(LRV)≥3。