This invention relates to a tracheostomy tube fixing device, comprising rotary fixation member, a neck belt fixing member, and a cover body. The neck belt fixing member and the rotary fixation member are mutually connected. The rotary fixation member comprises an annular base and a polarity of rotary fixation parts, each of which surrounds the tracheostomy tube and comprises a connection piece and a rotary fixation piece. Each connection piece is connected with the annular base and each rotary fixation piece comprises a connection end connected with the corresponding connection piece and a rotary fixation end. The thickness of each rotary fixation piece is gradually increasing from the connection end to the rotary fixation end. The cover body comprises a receiving space and a plurality of pushing bumps. The receiving space of the cover body receives the rotary fixation member of the rotary fixation part. Through rotating the cover body, those pushing bumps generate inward pressure to the corresponding rotary fixation pieces, so as to achieve the objective of firmly clamping the tracheostomy tube. Furthermore, through the rotation manner to firmly clamp, the possibility of releasing firm clamp due to accidental touch can be reduced.一氣切管固定裝置,其包括:一旋固件、一頸帶固定件與一蓋體。頸帶固定件與旋固件相連接,旋固件包含一環型底座與複數旋固部,各旋固部係環繞氣切管並包含一連接片與一旋固片,各連接片係與環型底座連接,各旋固片包含一與對應之連接片連接之連接端與一旋固端,且各旋固片由連接端至旋固端的厚度漸增,蓋體係包含一容置空間與複數推壓凸塊,蓋體的容置空間係容納旋固件之旋固部。透過旋轉該蓋體,使該等推壓凸塊對對應之旋固片產生向內之壓力,並藉此達到夾固氣切管之目的,且透過旋轉方式夾固亦減少因意外碰觸造成夾固關係解除之機率。1‧‧‧氣切管固定裝置10‧‧‧蓋體30‧‧‧頸帶固定件7‧‧‧氣切管
