The present invention provides a trachea-viewing conduit device and intubation assembly. The intubation assembly includes an endotracheal tube having a first end therefrom for insertion into the trachea of an individual during an intubation and a second end, and the trachea-viewing conduit device attached to the exterior of the endotracheal tube and having a viewing terminus secured to the endotracheal tube and positioned at a predefined distance away from the first end thereof. Thereby, an endoscope may be inserted into the trachea-viewing conduit device to permit viewing within the trachea during the placement of the endotracheal tube but at a position outside the endotracheal tube.一種氣管監測管路及結合氣管監測管路之氣管內管,係將一氣管監測管路結合在一呼吸管外部為其特徵。其中,該呼吸管有一第一端部及一第二端部,使用時自該第一端部將該呼吸管伸入病患呼吸道中;該氣管監測管路有一監測端,該監測端固定在該呼吸管上,且該監測端與該呼吸管之第一端部間隔一設定距離。藉此,可將一內視鏡伸入該氣管監測管路中,而自呼吸管外部觀察呼吸管伸入病患呼吸道的狀況。(1)‧‧‧呼吸管(11)‧‧‧第一端部(12)‧‧‧第二端部(15)‧‧‧標示部(2)‧‧‧氣管監測管路(22)‧‧‧監測端(23)‧‧‧後端(24)‧‧‧固定元件(d)‧‧‧設定距離