Abstract：Total en bloc spondylectomy plays an important role in the treatment of spinal tumors. Long
operation time, complicated anatomy structure and difficulty in cutting intervertebral disc and ligament
are the main factors that restricting the development of total en bloc spondylectomy. Using traditional saw
(T-saw) method to sever intervertebral disk and ligament has the risk of injuring the important structure
around vertebra. To lower such kind of risk, the intervertebral disk cutter of total en bloc spondylectomy
is developed. This type of cutter has a simple whole structure, which is constituted by cutting head,
cutter rest, cutter arbor, rotary knob, cambered hook, cutter grove, holder, main body and grab handle.
When the cambered hook fits the cambered antetheca of vertebral body, cutter head is adjusted to aiming
at intervertebral disk, and external force is transformed into cutting force by turning rotary knob, then
the intervertebral disk and ligament will be cut off. In addition, compared with T-saw, this new cutter
can avoid concussion of spinal cord and accidental injury of spinal cord during operation. Additionally,
the cutter has a higher capacity, and easily-operated simple structure. This new cutter opened up a new
cutting method of intervertebral disk and ligament, which can reduce the surgical risk during operation.
林斌，薛超，何明长. 一种新型全脊椎切除间盘切割器的研制[J]. 中国医疗设备, 2016, 31(12): 98-100.
LIN Bin, XUE Chao,
HE Ming-chang. Development of a New Intervertebral Disk Cutter of Total En Bloc
Spondylectomy. China Medical Devices, 2016, 31(12): 98-100.
