Cannulated Compression Screws
Compared with the conventional screw thread, Double head screw thread is deeper, the spiral angle is bigger
The proximal thread pitch is 30% smaller than the distal thread and can make effectively pressure to the fracture. Deeper and more
sharp tooth design, easy to penetrate cortical bone, improve the gripping forece.

Torx head can be better controled and prevent skidding



Size Information

Typ	Diameter	Length
3.01/3 Thread1/2 Thread	Stem 2mmThread Bottom 3mm Diameter 2mm	14-40mm(2mm intervals)
4.01/3 Thread 1/2 Thread	Stem 2.9mm Thread Bottom 4mm Diameter 2.4mm	14-60mm(2mm intervals)10-60mm(2mm intervals)
6.51/2 Thread 1/3 Thread Full Thread	Stem 4.5mm Thread Bottom 6.5mm Diameter 4mm	45-100(5mm intervals)
7.3short Thread lang Thread	Stem 5mm Thread Bottom 7.3mm Diameter 4.8mm	50-120mm(5mm intervals)thread length18mm thread length 32mm

Cannulated Headless Compression Screws
When the screw is implanted, the fracture is well compressed by the thread, which will increase the stability of the fracture.
After insertion, it can keep compressing function under periodic forces.
The thread pitch, which is bigger in the head, varies from the head to the tall, so the speed of the screw head into the bone is
faster than the screw tall.Thus when implanting, the threads will force the fracture surface.
Superior performance of the triangular blades makes it to implant and remove the screw easily.
Make screw tail embended in the bone surface, it can reduce the stimulation of the soft tissue.
With the guidance of guide wire, precutaneous implantation will be more efficiency.
Both the screw head and tall has bilateral edges which can reduce the risk of hole cracking when inserting or removing the screw.