Lyophilized heparanase preparation, heparanase cup as well as preparation method and application of lyophilized heparanase preparation and heparanase cup
The technology of freeze-dried preparation and heparinase cup is applied in the field of freeze-dried preparation of heparinase to achieve the effects of preventing blood coagulation, prolonging the validity period of the product and being convenient to use.
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[0064] The present invention also provides a preparation method of a heparinase cup, which comprises freeze-drying and sealing the above-mentioned heparinase freeze-drying composition or the above-mentioned heparinase freeze-drying liquid to prepare liver Vegetable cup. On this basis, it is used in conjunction with a thromboelastogram ordinary cup (kaolin graph reagent) for the detection of blood samples.
[0065] According to an embodiment of the present invention, the freeze-drying process includes prefreezing treatment, sublimation treatment and drying treatment, wherein the prefreezing treatment is carried out at a temperature of -40 degrees Celsius to -70 degrees Celsius for 5 to 20 minutes ; The sublimation treatment is carried out at a temperature of -40 degrees Celsius to 20 degrees Celsius for 10 to 60 minutes; the drying treatment is carried out at a temperature of 20 to 30 degrees Celsius for 15 to 30 hours. Through pre-freezing treatment, the main properties of th...
Embodiment 1
[0083] The heparanase freeze-dried solution was prepared according to the steps in Preparation Examples 1-3, and then freeze-dried and sealed to obtain a heparinase cup.
preparation example 1
[0085] (1) Weigh 0.005g of heparinase I, 5.0g of mannitol, 3.0g of bovine serum albumin, 1.5g of calcium chloride and 0.07g of Proclin300, dissolve them in 100mL of purified water, stir to fully dissolve, and prepare heparin Enzyme freeze-dried solution, adjust the pH to 7.20 with 1mol / L hydrochloric acid.
[0086] (2) Freeze-drying the heparanase freeze-dried solution prepared in step (1) to obtain a freeze-dried powder. Specifically include the following steps:
[0087] 1) Pre-freezing: pre-freeze the lyophilized liquid prepared in step (2) at -40°C, and the pre-freezing time is 10 minutes;
[0088] 2) Sublimation: sublimate the pre-frozen material in step 1) at -20°C, and the sublimation time is 20 minutes;
[0089] 3) Drying: the sublimated substance in step 2) is dried at a drying temperature of 20° C. and a drying time of 20 h.
[0090] (3) Sealing and packaging the freeze-dried powder prepared in step (2) by using a fully automatic blister packaging machine to prepar...
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