| 摘要 |
A retractor instrument assembly having a sleeve with a non-circular cross-sectional shape, an elongated rod slidably received within the sleeve, and a plurality of blades foldably connected together at an end of the elongated rod. The elongated rod has a handle at one end. The blades are hingedly connected to the rod at the end opposite the handle. The blades are movable between a folded configuration and an unfolded configuration. The folded configuration assumes a position which is slidable within the sleeve. The sleeve has a passageway with a triangular cross-section. The blades are of a generally triangular configuration when in the folded position. The plurality of blades includes a first blade connected to the rod, a second blade resiliently connected to one side of the first blade, and a third blade resiliently connected to an opposite side of the first blade. A remote actuator is provided so as to angularly displace the blades relative to the elongated rod. |
