Trachea fixator

The invention discloses a trachea fixator which comprises a fixator body and a fixing head in sliding fit with the fixator body, an anti-bruising block made of flexible materials is fixed to the inner side of the middle of the fixator body, and expanding parts are arranged on the portions, on the two sides of the anti-bruising block, of the fixator body; when the trachea fixator is worn, the inner surface of the bruise prevention block and the inner surface of the expansion part are located on the same arc face. The trachea fixator has the advantages that the trachea fixator is simple and reasonable in structure, the crush-preventing block made of the flexible material is used for reducing crush nearby a user, and when the trachea fixator is worn, the inner surface of the crush-preventing block and the inner surface of the expanding part are located on the same cambered surface, so that stress can be better distributed, local pressure is prevented from being too large, and the trachea fixator cannot be damage