Instratek® Endoscopic Trigger Finger Release (ETFR)™ was developed to provide a minimally invasive and effective surgical technique for performing trigger finger release minimizing the post-operative morbidity compared to open techniques. Trigger finger can be defined as an irritation of the digital sheath (A-1 pulley) that surrounds the flexor tendons of the finger. When the A-1 pulley becomes thickened or swollen, it pinches the tendon and prevents it from gliding smoothly. In some cases, the tendon catches and then suddenly releases as though a trigger were released. The ETFR™ consists of procedure specific instrumentation allowing direct endoscopic visualization of the A-1 pulley prior to division, allowing the flexor tendon to glide without restriction.