This creation system is a kind of structure-improved of nasopharynx artificial airway pipe,It includes a pipe fitting,The both ends of the pipe fitting are respectively a pipe inner end and a pipe outer end,The pipe inner end is equipped with a main aperture for being connected to the inside pipe fitting,Lateral position of the pipe fitting adjacent to the pipe inner end is equipped with an at least side opening,Outer peripheral surface system of the pipe fitting adjacent to the pipe inner end has a pipe ring face,The main aperture includes the Kong Duanhuan of the endface of a what pipe inner end,The diameter in the diameter width small what of the hole end ring pipe ring face is wide,It is connected between the hole end ring and the pipe ring face with a smooth surface,In addition,Between the length of the pipe fitting and ratio system Jie's what 22 to 34 of internal diameter； This creation can improve the missing of known techniques,There is provided a length it is enough,Facilitate it is fixed,The mucous membrane injury that may cause when insertion is reduced,And the nasopharynx artificial airway pipe of the preferable gas passage effect of tool.本創作係為一種鼻咽人工氣道管之改良結構，其包含一管件，該管件之兩端分別為一管內端與一管外端，該管內端設有一連通該管件內部之主孔，該管件鄰近該管內端之側面處設有至少一側孔，該管件鄰近該管內端之外周面係具有一管環面，該主孔包含一位於該管內端之端面處之孔端環，該孔端環之徑寬小於該管環面之徑寬，該孔端環與該管環面間以一平滑曲面相連接，另，該管件之長度與內徑之比值係介於22至34之間；本創作可改善習知技術之缺失，提供一長度夠、方便固定、減少插入時可能造成之黏膜傷害，且具較佳氣體通路效果之鼻咽人工氣道管。
