Polyvinyl alcohol sponge with ordered porous structure prepared on basis of 3D printing template and application thereof

The invention provides a polyvinyl alcohol sponge with an ordered porous structure prepared on the basis of a 3D printing template and an application thereof. When the sponge with ordered micro-channels makes contact with blood, the sponge can rapidly guide and absorb the blood, and a large number of regularly-arranged red blood cells are gathered in the micro-porous structure at the bottom of the sponge. The sponge prepared by combining structured ordered micro-channels and disordered holes greatly shortens the blood coagulation time and improves the hemostasis efficiency. The used raw materials have excellent biocompatibility, and potential biological safety and side effects are eliminated in the clinical use process. The used raw materials have excellent blood compatibility, do not cause hemolytic reaction and do not affect endogenous and exogenous blood coagulation pathways. 一种基于3D打印模板制备的具有有序多孔结构的聚乙烯醇海绵及应用，本发明具有有序微通道的海绵在与血液接触时可以快速引导和吸收血液，大量规则排列的红细胞聚集在海绵底部的微孔结构中，这种结构化有序微通道和无序孔相结合制成的海绵大大缩短了凝血时间，提高了止血效率，本发明所