Polyvinyl alcohol sponge products are used in sponge products;

Medical/civil grade macroporous/microporous PVA sponge: PVA medical grade microporous sponge is a kind of polymer material with excellent liquid absorption, extremely soft surface and complete natural degradation after contact with human body. Its excellent liquid absorption performance is not only reflected in its fast liquid absorption speed, but also in its super liquid absorption speed. Generally speaking, 1 g PAV sponge can absorb body fluids equivalent to more than 7 times its own weight. Therefore, this material is used to replace absorbent cotton and absorbent gauze in modern surgery, and is widely used in international clinical surgery. Polyvinyl alcohol medical-grade macroporous sponge has excellent liquid absorption, high porosity and high strength, and its surface is extremely soft when it comes into contact with human body, so it is widely used in clinical trauma surgery, especially in the field of negative pressure drainage. The discarded macroporous sponge can be completely degraded naturally and will not cause environmental pollution. Under normal circumstances, one gram of PAV macroporous sponge without auxiliary materials can absorb 9 times its own weight. This material is used to replace absorbent cotton and absorbent gauze in surgery, which can solve the problem that absorbent cotton or absorbent gauze needs to be replaced continuously in clinical surgery. Medical polyvinyl alcohol sponge is obtained by crosslinking and curing polyvinyl alcohol molecular chain through crosslinking agent. Does not contain fiber filaments or fiber heads, and there will be no fiber shedding during use. In ophthalmology, otorhinolaryngology, neurosurgery and thoracic surgery, the wound healing will not be affected by fiber shedding. According to different clinical uses, if the sponge is loaded with appropriate auxiliary materials, it can also promote wound healing. At the same time, this kind of sponge has good mechanical properties and can be processed into various shapes according to different surgical needs. In particular, the dart-shaped blood-sucking sponge piece or sponge stick used in microsurgery can quickly suck out tiny bleeding and ensure the correct operation.