Posterior ligament coulter
A posterior longitudinal ligament and coulter technology, which is applied in the field of medical devices, can solve the problems of increased surgical risk, difficulty in separating the posterior longitudinal ligament, and easy damage to the dura and spinal cord, so as to save operation time, reduce risks, and increase safety. Effect
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[0015] refer to figure 1 , 2 , 3, the posterior longitudinal ligament coulter of the present invention has an integrated structure, which is divided into a handle part 4, a coulter body part 5, a blunt dissection part 6 and a sharp plow part 7;
[0016] The handle part 4 is a cylinder with a rough surface, which is convenient for the operator to hold. One end is connected to the coulter body 5 with a diameter smaller than the handle part 4. The diameter of the lower 1 / 3 part of the coulter body 5 is from the proximal end to the far side. The end gradually becomes smaller, and forms a 90° smooth transition connection with the front end of the blunt dissection part 6 .
[0017] The blunt peeling part 6, the sharp plowing part 7 and the coulter body part 5 are all smooth transition connections.
[0018] refer to Figure 4 As shown, the cross-section of the bottom surface of the blunt peeling part 6 is trapezoidal, and the front end 8 is blunt and smooth.
[0019] refer to F...
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