Human placenta tissue fluid injection and preparation method thereof
A technology of placental tissue fluid and placental tissue, which is applied in the direction of antiviral agents, drug combinations, and pharmaceutical formulas, etc.
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[0011] A preparation method of human placenta tissue fluid injection, including the following steps:
[0012] (1) Select a healthy placenta, clean it to remove blood and dirt, and rinse it in sodium chloride solution to obtain pretreated placenta tissue;
[0013] (2) The pretreated placental tissue is crushed once, then freeze-dried by vacuum freeze-drying technology, and then crushed again to obtain dry placental tissue powder;
[0014] (3) Mix the dry placental tissue powder with water for injection, then add hydrochloric acid solution, adjust the pH of the mixed solution to 2.6-3.6, to obtain an acid mixture;
[0015] (4) Heat the acid mixture to hydrolyze, and then centrifuge to obtain acid hydrolyzed placental tissue fluid;
[0016] (5) Pass the acid-hydrolyzed placental tissue fluid into the protein adsorption column for adsorption and elution to obtain purified placental tissue fluid;
[0017] (6) Adjust the pH of the purified placental tissue fluid to 6.7-7.3 with sodium hydroxid...
Embodiment 1
[0033] A preparation method of human placenta tissue fluid injection, including the following steps:
[0034] (1) Collect the placenta of healthy parturients during full-term delivery. After testing for hepatitis B, hepatitis C, AIDS, syphilis and other viruses, select the placenta with negative virus test results as raw materials, and use them as raw materials to clean and remove blood and dirt. Rinse in the process to obtain pretreated placental tissue;
[0035] (2) The pre-treated placental tissue is crushed once, and then freeze-dried by vacuum freeze-drying technology. The conditions of the freeze-drying process include: putting the crushed placental tissue into the vacuum freeze dryer, closing the sealed door, and turning on the vacuum pump switch And the switch of the freeze dryer, pump the vacuum to 18kPa, and start the refrigeration at the same time. The temperature of the cold trap of the vacuum freeze dryer is reduced to -45℃ within 2 hours, and the holding time is 5 hou...
Embodiment 2
[0042] A preparation method of human placenta tissue fluid injection, including the following steps:
[0043] (1) Collect the placenta of healthy parturients during full-term delivery. After testing for hepatitis B, hepatitis C, AIDS, syphilis and other viruses, select the placenta with negative virus test results as raw materials, and use them as raw materials to clean and remove blood and dirt. Rinse in the process to obtain pretreated placental tissue;
[0044] (2) The pre-treated placental tissue is crushed once, and then freeze-dried by vacuum freeze-drying technology. The conditions of the freeze-drying process include: putting the crushed placental tissue into the vacuum freeze dryer, closing the sealed door, and turning on the vacuum pump switch And the freeze dryer switch, vacuum to 28kPa, and at the same time start the refrigeration, the cold trap temperature of the vacuum freeze dryer is reduced to -60 ℃ within 4 hours, and the holding time is 2 hours; the product is slo...
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