| 摘要 |
<p>Provided is an eyelid opening device which has one arm composed of a thermoplastic resin formed into a curved shape by injection molding so as to provide elasticity, and two eyelid pressing members which are bonded to the respective ends of the arm and pull the upper eyelid and the lower eyelid to hold the eyelids open by means of the elastic repelling force of the arm. The parts of the arm through which resin is injected are provided in parts other than the parts which have the maximum tensile strength generated when a load is applied in the direction to make both eyelid pressing members approach each other.</p> |
