The "Chitosan Antibacterial Membrane" produced by Jiaxing Softer Biotechnology Co., Ltd. was developed by the China Center for Toxicology Drug Toxicology (World Health Organization Human Reproduction Research Cooperation Center) and has a new generation of biological products with original intellectual property rights. The core material of "Chitosan Antibacterial Film" is chitosan nano-iodine (chitoiodine), which is the core technology of the film. It is a complex of chitosan and iodine, and has the properties of chitosan and iodine. It is a combination of the H branch of the chitosan molecule and the H chain of the iodine molecule, and the substance is attracted by positive and negative charges, so that the iodine molecule is encapsulated by the chitosan molecule into the form of nanoscale capsules and microcapsules. When in action, nano-level iodine molecules continue to release sterilization and anti-inflammatory from chitosan molecules, which is a broad-spectrum antimicrobial material. Due to chitosan, the released iodine does not directly contact the wound surface, which greatly reduces the stimulation effect of iodine on the wound surface. It has a broad-spectrum antibacterial effect, the function of locally concentrating the lesion, and antibacterial and anti-inflammatory that can last 5 to 7 days. The product is made by vacuum freeze-drying according to the shape of the cervix, which can be automatically degraded and absorbed. The product can directly act on the wounds after cervical surgery, wounds after physical therapy, tissue injury wounds, the inflammatory parts of the cervix and cervical ducts, and plays the role of antibacterial, anti-inflammatory, hemostasis, and repair.