The surgical experts from Changsha Bangren Medical Equipment Co., Ltd. carried out a series of surgeries such as digitus (small incision) cholecystectomy (without laparoscope) at the Changsha Municipal Second Hospital. They also pioneered quick healing of surgical wounds and pain, as well as invented the world’s first quick-healing applicator and electric pain-killer plaster. In addition, they also started new postoperative pain-killing techniques including oral administration, intramuscular injection, vein injection and intra-spinal administration. This helps prevent side effects from painkillers and accelerates the healing of damaged tissues and endangium. This also prevents the cause of postoperative vein thrombosis and contributes to solving the universal problem of postoperative pulmonary embolisms while saving lives in the process. It will provide many trauma patients with the world’s most convenient, efficient and safest methods for postoperative pain-killing and fast wound healing. Since its founding in January of 2007, in the Hunan province of China, this medical equipment company has obtained 13 Chinese National invention patents. It has also acquired a registration certificate.