PROBLEM TO BE SOLVED: To provide an eyelid opening device which is capable of opening eyelids in the same direction as the natural opening and closing direction of the eyelids, can be miniaturized, and allows an operator to perform an eyelid-opening operation with his or her single hand.SOLUTION: The eyelid opening device used for opening upper and lower eyelids in an ocular treatment or operation or an intraocular chemical administration comprises: a handle 4, a spiral portion 5 formed at the handle 4 a slider 6 which moves along the spiral portion 5 change mechanisms 7, 8, and 10 for changing the movement of the slider 6 in a linear direction to the movement of the opening and closing direction of the eyelids a pair of arms 2 and 2 which comprise eyelid pressing portions 3 at their respective tips and move in the opening and closing direction of the eyelids by the change mechanisms 7, 8, and 10 and support mechanisms 9 and 10 which support the arms 2 and 2 to move in the same direction as the eyelids, in connection with the change mechanisms.COPYRIGHT: (C)2014,JPO&INPIT【課題】 自然の瞼の開閉方向と同じ方向に開瞼を行うことができ、小型化も可能で、かつ、施術者が片手で開瞼作業を行うことができる開瞼器を提供する。【解決手段】 眼の治療や手術の際又は眼内への薬剤投与の際などに、上下の瞼を開くために使用される開瞼器において、ハンドル4と、このハンドル4に形成された螺旋部5と、この螺旋部5に沿って移動するスライダ6と、このスライダ6の直線方向の移動を瞼の開閉方向の移動に変換する変換機構7,8,10と、先端に瞼押え部3を有し、変換機構7,8,10によって瞼の開閉方向に移動する一対のアーム2,2と、前記変換機構と連動し、一対のアーム2,2を瞼の開閉方向と同方向に移動させるように支持する支持機構9,10とを有する【選択図】 図1
