| 摘要 |
The present invention provides a surgical retractor having a generally annular base. Two generally upstanding prongs extend generally upwardly at an angle from the base. The exterior surface of the base is generally concave, whereas the exterior surface of both of the prongs is generally convex. The base and prongs together form a substantially funnel-shaped structure which is adapted to be positioned over the lower dental group of a patient and to separate the cheek and tongue from a patient's teeth. |
