Minimally Invasive Integrated Instrument Assembly for Spinal Surgery

A spinal surgical instrument assembly, comprising:

• a U-shaped tube, wherein the U-shaped tube comprises a U-tube body, a U-tube handle, and a smooth stepped slope at a distal end, with a first end of the U-tube body fixed to the U-tube handle, and a second end of the U-tube body forming the smooth stepped slope, the internal diameter of the U-shaped tube being larger than the external diameters of the T-shaped tube and the reamer;
• a T-shaped tube, wherein the T-shaped tube comprises a T-tube body, a T-tube handle, and a smooth curved slope at the distal end, with one end of the T-tube body fixed to the T-tube handle, and the other end having the smooth curved slope, the internal diameter of the T-shaped tube being larger than the external diameter of an endoscope shaft;
• a reamer, wherein the reamer comprises a hollow reamer channel, with a plurality of distal teeth at its distal end, scale markings on the inner wall of the hollow reamer channel, and a reamer handle at a proximal end, the internal diameter of the hollow reamer channel being larger than the external diameter of the endoscope shaft;
• and
• an endoscope, wherein the endoscope is positioned inside the T-shaped tube or reamer, the endoscope visualizes a surgical area and provides a working channel for instruments.