Distracting cannula for sheathless arthroscope

摘要

An arthroscope cannula for a sleeveless arthroscope. The arthroscope cannula is provided with an elongated shaft, a distal end with a threaded portion which allows the arthroscope cannula to securely lock into the knee capsule, and a proximal end for receiving the sheathless arthroscope. The cannula includes a slidable retention clip that is advanced on the shaft of the cannula to a position against the skin to maintain traction and stabilize the cannula against retraction, and to distend the joint capsule.