Memory alloy auto-distraction locking interbody fusion cage and application method thereof
A technology of intervertebral fusion device and memory alloy, which is applied in the field of medical devices, can solve the problems of increasing the possibility of postoperative infection and nerve injury, prolonging the operation time and intraoperative blood loss, and accelerating the degeneration of adjacent segments, so as to shorten the Effects of operation time and intraoperative blood loss, reduction of postoperative infection, and reduction of economic burden
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Embodiment 1
[0033] Embodiment 1: The self-expanding and locking intervertebral fusion device of the present invention for cervical vertebra distraction and fixation for cervical fusion
[0034] refer to diagram 2-1 to Figure 2-5 , the memory alloy self-expanding and locking type intervertebral fusion device for cervical intervertebral fusion consists of a rectangular main body 11 , self-expanding holes 12 , locking teeth 13 , holding holes 14 , and bone grafting holes 15 . The self-expanding hole 12 is circular and / or elliptical and symmetrical on both sides of the rectangular and / or cashew-shaped body 11; the locking teeth 13 are located on the upper and lower sides of the self-expanding hole and are symmetrical. Facing outward; the holding hole 14 is located at the rear of the rectangular and / or cashew nut-shaped main body 11; the bone graft hole 15 is located at the center of the rectangular and / or cashew nut-shaped main body 11, and its shape is consistent with the rectangular and / ...
Embodiment 2
[0039] Embodiment 2: Laminoarticular process pressure fixation hook of the present invention for transverse process fixation
[0040] Referring to FIG. 4 , the difference between this embodiment and Embodiment 1 is that in this embodiment, the self-expanding locking type intervertebral fusion device 4 of the present invention is in the shape of a cashew nut and fixes the subject's lumbar spine. The memory alloy self-expanding locking type intervertebral fusion device for lumbar intervertebral fusion consists of a cashew nut-shaped main body 41 , self-expanding holes 42 , locking teeth 43 , holding holes 44 , and bone grafting holes 45 . The self-expanding hole 42 is elliptical and symmetrical on both sides of the cashew nut-shaped body 41; the locking teeth 43 are located on the upper and lower sides of the self-expanding hole and are symmetrical, with the tooth tips facing outward; the holding hole 44 is located on the rectangular and / or Or the rear side of the cashew nut-sha...
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