▎ 摘　　要

NOVELTY - A graphene far infrared auxiliary heat nursing warm cover for venous transfusion, comprising a cover body, a graphene heating film layer, a temperature controller, a temperature sensor, a temperature control switch, a temperature, indicator light external power supply; wherein the cover body of the warm cover is a semi-cylindrical cylindrical structure; the cover body is made of PET plastic full transparent structure; the top surface of the cover body is opened with a hand hole; two side vertical inner wall of the cover body is fixedly installed with graphene heating film; the inner side of one end of the cover body is provided with a groove; the power line of the graphene heating film is introduced to the side vertical surface of one port through the groove, and is connected with the temperature controller power line of the port side vertical surface; the temperature controller is fixedly installed on one end side vertical surface of the cover body through the screw; the temperature controller is further connected with the temperature sensor circuit; the temperature controller is provided with a temperature display lamp and a key switch; the temperature controller is provided with a USB interface; the temperature controller is connected with the external power supply through the USB interface to form the whole graphene heating film circuit loop.