| 摘要 |
PROBLEM TO BE SOLVED: To provide an emergency treatment tool for securing the airway as soon as possible by passing air through the fauces, the tool using the relationship among mutually interfering muscles comprising an area from relaxed oral cavity to larynx.SOLUTION: An expanding tool main body 1 of a tool for expanding and maintaining airway aperture comprises: an intraoral engaging entity 2 at the center; flexible bent pieces 3 formed on both sides of the intraoral engaging entity 2; upper lip fitting parts 6 and a lower tooth fitting groove formed on the surface of the main body; and an upper tooth fitting groove and a lower tooth fitting groove formed on the surface of the main body for insertion into the oral cavity, the upper tooth fitting groove and the lower tooth fitting groove being arranged on a straight line or on different levels. In this configuration, left and right air holes, also used for vomit sucking, in a central part of the intraoral engaging entity, and a concavity formed in a central part of the upper surface of the tongue by pressing the tongue backward with a pressing bar inserted into an insertion hole, form a passage of inhaled air when both sides of the fauces are extended laterally by the tips of the left and right bent pieces and both sides of the tongue are raised upward. In addition, the upper tooth fitting groove and lower tooth fitting groove are fitted with cradles to accept teeth and alveolar ridges. |
