Trachea cannula

Abstract

A trachea cannula comprises a cannula body (1) and an inflatable bag (2), the cannula body is hollow structured and comprises a front end inserted into oral cavity of human and a rear end outside the oral cavity, and the front end of the cannula body is configured with an opening (6) which is disposed at a head of the front end. The trachea cannula further comprises a visible light source (3), a switch (5) for controlling the visible light source, and a battery (6) supplying power to the visible light source, and both the inflatable bag and the visible light source are secured at the front end of the cannula body; the switch, the battery and the visible light source are connected together in series via wires, forming a closed circuit; the distance from the visible light source to the opening is equal to the distance from a middle point between the third tracheal ring and the fourth tracheal ring to a position 1.5 to 2 cm from tracheal bifurcation at the trachea. Such intubation for the tracheal facilitates the medical staff to determine whether the trachea cannula is located at a correct position conveniently and quickly based on whether the visible light source is placed a position between the third tracheal ring and the fourth tracheal ring, without any harm to human body.

Dependencies are inferred from the claim text.