Method and apparatus for subligamentous endoscopic transverse carpal ligament release surgery

摘要

A cannula for use in endoscopic surgical procedures, the procedures including use of an endoscope and a surgical instrument. The cannula has two ends with a continuous passageway extending between the ends. The cannula has a slot extending along its length through which tissue can be viewed by the endoscope and accessed by the surgical instrument. The slot is bounded by a crosspiece at one of its ends. The cannula may be tapered and may have a guard at the end of the cannula opposite the crosspiece.