Abstract: A mouthpiece with which the advancement amount of a lower jaw mouthpiece can be more easily adjusted, without increasing the size of the mouthpiece, is provided. The mouthpiece has: a pair of upper jaw and lower jaw mouthpieces facing each other; a male screw; a female screw; a front holding part provided to one of the mouthpieces, holding the male screw or the female screw; and a rear holding part provided to the other mouthpiece, holding the female screw or the male screw further rearward than the front holding part. The female screw and the male screw position the lower jaw mouthpiece in the front-rear direction with respect to the upper jaw mouthpiece, as a result of the turning of the male screw which is screwed into the female screw at a denture tooth surface or further rearward than the denture tooth surface.

Abstract: In an adjuster for an airway securing device, a base member fixed to one of an upper jaw side attachment body and a lower jaw side attachment body is provided with a base member side half tube part and a slide member fixed to the other of the upper jaw side attachment body and the lower jaw side attachment body is provided with a slide member side half tube part. The base member side half tube part and the slide member side half tube part form a tube part in which an adjusting bolt is disposed on its inner peripheral side. A base member side flange part is formed at a base end of the base member side half tube part and a slide member side flange part shape is formed at a base end of the slide member side half tube part.

Abstract: In an adjuster for an airway securing device, a base member fixed to one of an upper jaw side attachment body and a lower jaw side attachment body is provided with a base member side half tube part and a slide member fixed to the other of the upper jaw side attachment body and the lower jaw side attachment body is provided with a slide member side half tube part. The base member side half tube part and the slide member side half tube part form a tube part in which an adjusting bolt is disposed on its inner peripheral side. A base member side flange part is formed at a base end of the base member side half tube part and a slide member side flange part shape is formed at a base end of the slide member side half tube part.

Abstract: Provided is an airway maintenance apparatus that draws the lower jaw forward to forcibly maintain an airway during sleep, designed to allow quick and easy setting of a drawing extent for the lower-jaw side attachment suitable for each patient. The airway maintenance apparatus contains an upper-jaw side attachment 1 to be attached to the upper jaw side in the oral cavity, and a lower-jaw side attachment 2 provided separately from the upper-jaw side attachment 1, and to be attached to the lower jaw side in the oral cavity, the lower-jaw side attachment 2 being connected to the upper-jaw side attachment 1 via a stepless adjusting device 3 capable of moving the lower-jaw side attachment 2 in a stepless manner in the direction of drawing the lower jaw forward relative to the upper-jaw side attachment 1.

Abstract: Provided is an airway maintenance apparatus that draws the lower jaw forward to forcibly maintain an airway during sleep, designed to allow quick and easy setting of a drawing extent for the lower-jaw side attachment suitable for each patient. The airway maintenance apparatus contains an upper-jaw side attachment 1 to be attached to the upper jaw side in the oral cavity, and a lower-jaw side attachment 2 provided separately from the upper-jaw side attachment 1, and to be attached to the lower jaw side in the oral cavity, the lower-jaw side attachment 2 being connected to the upper-jaw side attachment 1 via a stepless adjusting device 3 capable of moving the lower-jaw side attachment 2 in a stepless manner in the direction of drawing the lower jaw forward relative to the upper-jaw side attachment 1.