Patent ID: 8652036

Claim:
A speculum comprising: a first arm having a trough-shaped first channel formed thereon, said first channel having an open portion adapted to the shape of an eyelid; a second arm having a trough-shaped second channel formed thereon, said second channel having an open portion adapted to the shape of an eyelid, said open portion of said second channel facing away from said open portion of said first channel; a hinge unitarily formed with said first and second arms, said hinge permitting said first and second arms to selectively rotate about an axis of rotation, said selective rotation causing said first and second channels to selectively move closer and farther apart; and, a position retaining arrangement including: at least two first elements formed unitarily with said first arm, said first elements being spaced apart in a direction parallel to said axis of rotation so as to define a channel therebetween; and, a second element formed unitarily with said second arm; wherein, said first and second elements being configured to cooperatively retain said first and second arms in a selected rotational position, wherein, with said first and second elements being in cooperative retention, said first elements straddle said second arm with a portion of said second arm received in said channel, and, wherein the speculum is monolithically formed as one piece.