Micro-invasive surgical device and methods of use

A tissue cutting device for performing a trigger finger release procedure, the tissue cutting device comprising:

• a flat handle, comprising;
• a first handle portion;
• and
• a second handle portion attached to the first handle portion via multiple break points;
• a first blade extending from the first handle portion and comprising:
• a first arm extending from a first proximal end at the first handle portion to a first distal end;
• a second arm extending parallel to the first arm from a second distal end to a second proximal end in a direction of the second handle portion without contacting the second handle portion;
• and
• a distal tip connecting the first distal end of the first arm with the second distal end of the second arm and including a forward-facing cutting edge;
• and
• a second blade extending from the second handle portion parallel to and between the first arm and the second arm and including a cutting edge with a hook shape that faces the handle,
• wherein the first arm, the second arm, and the distal tip of the first blade surround at least a majority of the second blade, and
• wherein the second handle portion is rotatable relative to the first handle portion to break the second handle portion from the first handle portion at the multiple break points and rotate the second blade relative to the first blade, such that the second blade rotates from a first plane to a second plane and into a position for cutting a target tissue with the cutting edge.