2results about How to "Save lives" patented technology

The application provides a method for long-term in-vitro culture and expansion of primary hepatocytes and application thereof. The method for in-vitro culture and expansion of primary hepatocytes comprises using a culture medium containing interleukin-22 (IL-22), combined with hepatocyte growth factor (HGF) and / or epidermal growth factor (EGF) to induce primary hepatocytes to prepare proliferative liver precursor cells. The application combines interleukin-22 (IL-22), hepatocyte growth factor (HGF) and / or epidermal growth factor (EGF) to induce in-vitro mass expansion of primary hepatocytes, and through the method, mature-like hepatocytes with a gene expression profile extremely similar to that of primary hepatocytes and perfect functions can be obtained, and the hepatocytes expanded by the method have good in-vivo therapeutic effects.

The utility model provides a split smoke mask with protection system and can be reused, belongs to the fire control field, the mask is connected with the protection system through the water cooling pipe, the protection system includes filter jar and backflush air bag, filter jar is sequentially provided with dust collection space, ceramic membrane, filter smoke layer and adsorbent from bottom to top, backflush air bag is arranged in the outer periphery of filter jar, and filter jar and backflush air bag below are connected with air inlet pipe, backflush air bag top is also provided with the communicating part, the communicating part leads to filter jar top, filter jar below is provided with exhaust pipe, and backflush air bag communicating part is communicated with filter jar top, and the valve is arranged on water cooling pipe, air inlet pipe and exhaust pipe, air inlet pipe is connected with air pump, and air pump is provided with automatic cleaning control circuit and automatic cleaning button, can play high temperature resistance, reusable, timely cleaning can prevent poison, dustproof, protects personnel safety evacuation fire scene, saves life.