Transplanted kidney low-temperature preservation device suitable for kidney transplantation operation

The transplanted kidney cryopreservation device comprises a bag, an infusion apparatus, a drainage tube and a negative pressure aspirator, catheters are fully distributed on the bag to form a catheter net, a water outlet pipe and a water inlet pipe are arranged on the bag, the two ends of the catheter net are gathered and communicated with the water outlet pipe and the water inlet pipe respectively, the water inlet pipe is connected with the infusion apparatus, and the drainage tube is connected with the negative pressure aspirator. The water outlet pipe is connected with the extension pipe; during use, the bag is placed in a low-temperature refrigerator to be pre-cooled, in a kidney transplantation operation, the water inlet pipe is connected with an infusion device, sterile ice normal saline is input, the water outlet pipe is connected with a drainage pipe and then connected with a negative pressure aspirator, the kidney diaphragm surface is coated with the bag, and then transplantation kidney blood vessel