▎ 摘　　要

NOVELTY - The utility model claims a graphene heating device for anesthesia machine breathing loop pipe, comprising a heating sleeve body, the heating sleeve body has a hollow through passage, the passage passage for breathing loop pipe, the heating sleeve body from inside to outside sequentially provided with a tubular graphene electric heating film layer, insulating fireproof layer, wherein the graphene electric heating film layer is capable of heating the breathing loop tube in the through passage when electrifying. The utility model uses the tubular graphene electric heating film layer to form a full circumferential wrapping heating to the pipe wall of the breathing loop pipe, the actual effective heating area of the graphene electric heating film is equivalent to the surface area of the heating sleeve body, therefore, the whole breathing loop pipe can be heated, the heat distribution is uniform, the whole inner wall is not formed with condensed water, it can more effectively prevent the condensed water in the respiratory loop pipe from generating, it ensures the normal operation of the anesthesia machine and reduces the occurrence of patient infection accident caused by condensed water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the device graphene to claim.