| 摘要 |
An apparatus to remove an obstruction from the trachea of a choking victim comprises a hollow cylinder having a forward end. A piston is movably disposed within the cylinder and forms a chamber at the forward end of the cylinder. The piston is movable by means of a compressed spring disposed within the chamber of the cylinder. A mask is connected to the cylinder and adapted to form a seal around the mouth of the victim. An airway leads from the chamber to the mask. In use, the mask is placed over a choking victim's mouth and the spring is released causing rearward movement of the piston. This expands the chamber and reduces the pressure within the chamber and person's mouth, thereby drawing the obstruction out of the trachea.
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