The surgical trocar helps to reduce the operating time, improve the efficiency of the operation, and protect the health of the surgeon. The gas lock valve can prevent the gas from returning and ensure the safety of the operation. The disposable trocar is made of medical grade materials, which are safe, reliable, and biocompatible. It has a sharp and durable puncture needle, which can easily puncture the abdominal wall and reduce the pain of the patient. The double-wall puncture cannula can effectively prevent the gas leakage and maintain the pressure in the abdominal cavity. The YM series disposable double cavity puncture device is easy to use, with a simple and clear operation interface, which can accurately display the pressure and flow rate of the pneumoperitoneum. It also has a self-check function, which can automatically detect the working status of the device and alarm in time if there is any abnormality. In summary, the Yao Ming YM series disposable double cavity laparoscopic trocar, with its advanced technology and user-friendly design, can provide a safe, efficient, and comfortable operation environment for doctors and patients.