Surgical instrument for expanding body tissue.

摘要

A surgical instrument 1 for performing procedures such as carpal tunnel release. The instrument consists of an elongated member 12 having a spring or cam plate positioned therein. The spring or cam plate 24 is movable from a retracted position within the elongated member to an extended position protruding through an aperture 18 in the elongated member. Movement of the spring or cam plate to the extended position stretches a flexible membrane 16 positioned over at least a portion of the elongated member to stretch the carpal tunnel ligament. <IMAGE>