The present invention relates to a bending structure of tracheoscopic catheter, mainly composed of a main elastic spring coil, two small elastic spring coils, and a fixed seat. Wherein, the main elastic spring coil is disposed inside the hose at the distal end of the tracheoscopic catheter, two small elastic spring coils are respectively disposed at two opposite sides inside the main elastic spring coil to provide two pulling cords of the tracheoscopic catheter to respectively pass therethrough, the fixed seat is received at the farthest end of the hose, the distal ends of two pulling cords respectively pass through the through holes respectively installed at two sides of the fixed seat to be fixed thereat, and the other ends of the pulling cords are extendedly combined to the control mechanism inside the handle. Therefore, the present invention can utilize a simple operation of the handle to couple the pulling cords and further couple the fixed seat to sway to the same direction, so as to achieve the purpose of making the catheter bent synchronously.本發明為一種氣管鏡導管彎曲構造，主要係由一條主彈性彈簧圈、二條小型彈性彈簧圈、和一固定座所組成，其中主彈性彈簧圈係設在氣管鏡導管遠端的軟管之內部，而二小型彈性彈簧圈則設在主彈性彈簧圈內部相對的兩側位置，提供氣管鏡的二條拉線分別貫穿其間，固定座則容置於軟管的最遠端，二拉線的遠端分別穿過固定座二側的貫穿孔並固定，拉線的另端延伸結合於把手內部的控制機構，因此可利用於把手處簡易操作連動拉線，進而連動固定座同向擺動，達到使導管遠端同步彎曲之目的者。
