| abstract |
The invention relates to a preparation method of a 3D printing intravascular absorbable stent with an anticoagulation function. The method comprises the following steps: heating and melting polycaprolactone, adopting a 3D printing melting deposition manufacturing process to aminate the surface of the obtained polycaprolactone vascular stent, then soaking the polycaprolactone vascular stent in a heparin solution for grafting, and freeze-drying. The method can rapidly, accurately and controllably obtain the stents with various specifications according to different required inner diameters and lengths, and has important application in the field of interventional medical treatment; the prepared stent has better mechanical property, bending resistance, biocompatibility and anticoagulation function. |