Patent ID: 8753364

Claim:
A system for releasing a ligament, the system comprising: a tubular body comprising: a proximal end, a distal end opposite the proximal end, a tubular wall defining a lumen extending longitudinally through the tubular body and comprising an inner diameter and an outer diameter, and a window extending through the tubular wall; an inner body extending through the lumen of the tubular body and comprising: a proximal end, a distal end opposite the proximal end, a tissue penetration tip at the distal end of the inner body, and a tissue cutting portion located between the distal end and the proximal end of the inner body; and a proximal handle coupled to the proximal end of the tubular body and comprising a first rotatable actuator coupled to the inner body and configured to rotationally displace the inner body relative to the tubular body to rotationally transition the tissue cutting portion between a non-deployed state and a deployed state, wherein in the non-deployed state the tissue cutting portion is hidden from the window, and in the deployed state the tissue cutting portion is exposed at the window and remains confined within a boundary defined by the outer diameter of the tubular wall of the tubular body.