Biologically cmposite artificial bone and its preparing process
A preparation process and artificial bone technology, applied in the field of artificial bone, can solve the problems of complex BMP preparation, poor mechanical strength of collagen, and difficult degradation and absorption of bioceramics, so as to reduce immune rejection, definite osteoinductive effect, and obvious osteoconductive effect Effect
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Embodiment 1
[0020] Embodiment 1: a kind of biocomposite artificial bone, is characterized in that: it is the biocomposite artificial bone that is made by the raw material of following weight (part) proportion, polylactic acid: hydroxyapatite: decalcified bone matrix=2 :1:1.
[0021] Its preparation process is as follows: First, hydroxyapatite and decalcified bone matrix are pulverized into powder respectively, passed through a standard sieve, and the grain powder with a particle size of less than 250um is taken, and prepared according to the ratio of hydroxyapatite: decalcified bone matrix = 1:1 Mix the ratio evenly, add an appropriate amount of distilled water and stir to make a suspension; then weigh D, L-type polylactic acid according to the ratio of polylactic acid: hydroxyapatite: decalcified bone matrix = 2:1:1, and add ethyl acetate to dissolve , the amount of ethyl acetate is based on the ability to completely dissolve D, L-type polylactic acid; secondly, add ethyl acetate contain...
Embodiment 2
[0047] Embodiment 2: a kind of biocomposite artificial bone, is characterized in that: it is the biocomposite artificial bone that is made by the raw material of following weight (part) proportion, polylactic acid: hydroxyapatite: decalcified bone matrix=1.5 :1.5:0.5.
[0048] The preparation process of this example is the same as that of Example 1.
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