The length of the
barrel of the
respiratory tract foreign matter suction device for pre-hospital
emergency treatment is about 30cm, and the length of the
suction catheter externally connected with the
barrel is about 30cm. And the
pipe orifice of the external suction guide
pipe is in a horn
mouth shape, so that the suction area can be increased, and blocked foreign matters can be effectively sucked out. And the
maximum diameter of the horn-shaped opening of the external
suction catheter is between 1.1 cm and 1.3 cm and is smaller than the
diameter of an adult trachea. The 120 pre-hospital first-aid doctor arrives at the site and can immediately use the device for suction, some foreign matters are clamped in the
throat, the trachea orifice and the trachea below the trachea, the
suction catheter can directly extend into the
throat, the
handle is slowly drawn back while the suction
catheter extends into the
throat, the negative pressure of the
barrel body and the suction
catheter is kept, and after the suction
catheter and the barrel body have sucked matters, the drawing-back force is increased, so that the suction catheter and the barrel body are sucked out. And
airway obstructions can be sucked out as soon as possible. In an emergency, an emergency doctor can insert the suction catheter into the trachea to suck out foreign matters with the help of the laryngoscope. When the masses carry out
first aid, the
aspiration catheter can be inserted into the throat part to suck back forcibly, and the
aspiration catheter is effective for tracheal
foreign body blockage near the throat part and the tracheal orifice.