A SPECULUM

摘要

A speculum (10) includes a main body (12) with two dilator fingers (14A and 14B) that are connected at their respective proximal ends (16A and 16B) to the main body (12). A further dilator finger (28) extends between the fingers (14A and 14B) and is fixed to the main body (12). An actuator (20) is pivotally coupled to the main body (12). The actuator (20) is formed with a dilator finger (70) that is located between the fingers (14A and 14B) and opposite the fixed finger (28). When the actuator (20) is pivoted the finger (70) immediately commences to pivot away from the remaining fingers (14) and (28). After a predetermined degree of pivot, the actuator (20) comes into contact with the inside of fingers (14) near their proximal ends (16) to cause the distal ends of those fingers to move away from each other. Fingers (14A and 14B) are hinged about respective canted hinge axis so that when they are abuted by the actuator (20) they move in a combined upward and sideways motion.