| 主权项 |
1. An oral cavity insertion instrument adapted to be used by being attached to a monitor device having a long scope portion with a central axis, wherein the oral cavity insertion instrument is adapted to be inserted into an oral cavity in a state that the instrument is attached to the monitor device when used, the instrument comprising:
a long cover member having a bore which extends in a longitudinal direction thereof, wherein the scope portion of the monitor device is adapted to be inserted into the bore for attachment, the cover member has a tip end and a base end opposite to the tip end and is linearly formed from the base end to the tip end, and the cover member has a certain width; a long tongue depressor formed into a flat plate shape, the tongue depressor having a first surface on which the cover member is provided along the longitudinal direction thereof and a second surface which is opposite to the first surface and adapted to contact a tongue when the tongue is depressed by the tongue depressor, the tongue depressor provided adjacent to and in contact with the cover member along the longitudinal direction of the cover member, the tongue depressor having a width greater than that of the cover member, the tongue depressor having a tip end, a base end opposite to the tip end and a pair of longitudinal side edge portions each extending outward from the cover member in a direction perpendicular to the longitudinal direction of the cover member; and an attachment unit configured to attach the cover member to the monitor device, wherein the cover member has an outer surface at an opposite side to the first surface of the tongue depressor, and when the outer surface is viewed from the longitudinal direction of the cover member, the outer surface is defined by a convex curve surface that protrudes from the first surface of the tongue depressor, and the cover member is located between the pair of longitudinal side edge portions of the tongue depressor, wherein the tip end of the tongue depressor extends beyond the tip end of the cover member in the longitudinal direction of the cover member, and the tip end of the tongue depressor is defined by a semicircular shape and has a diameter that is the same size as a width of the base end of the tongue depressor, and wherein a width of the pair of longitudinal side edge portions of the tongue depressor is constant along a longitudinal direction of the tongue depressor. |
