Intervertebral movable indwelling device and its guided implanting apparatus and method
A retaining device, guided technology, applied in the medical field, to achieve the effect of simplifying the operation process, saving operation time, and prolonging the operation time
Active Publication Date: 2018-12-11
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The present invention aims to solve the disadvantages of traditional intervertebral motion preservation device implantation instruments and implantation methods that need to constantly try to align or need additional devices to assist in aligning the intervertebral motion preservation device during the clamping process of the intervertebral motion preservation device
Method used
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Embodiment Construction
[0046] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0047] see figure 1 , 4 , 8, the intervertebral motion preservation device I is composed of an upper bone plate 1, a lining 2, a nucleus pulposus 3 and a lower bone bone plate 4, the inner lining 2 is nested in the upper bone plate 1, and the nucleus pulposus 3 is nested In the lower bone plate 4, the lining 2 and the nucleus pulposus 3 form a spherical friction pair of clearance fit type; Composition, the elastic telescopic ring 8 is fixed in the front end of the knob 7, the tapered connector 65 at the tail of the grip rod 6 is fixed in the rotating cavity 71 at the end of the knob 7 through the elastic telescopic ring 8, and the two can be freely Rotate, the clamping rod 5 passes through the inner cavity of the gripping rod 6 and is screwed together with the inside of the knob 7, and when the knob 7 rotates relative to the gripping rod 6, the clamping rod 5 is...
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The invention relates to the technical field of medicines, in particular to an intervertebral movable indwelling device and its guided implanting apparatus and method. The intervertebral movable indwelling device comprises an upper bone plate, a liner, a vertebral core and a lower bone plate, wherein the liner is inserted in the upper bone plate, the vertebral core is inserted in the lower bone plate, and the liner and the vertebral core form a spherical friction pair in clearance fit. Further, the left and right sides of the back end of the upper bone plate of the intervertebral movable indwelling device are provided with embedded clamp slots; the embedded clamp slots each comprises an opening area and a recessed clamping area which are communicated with each other, a gap is reserved between each clamp slot and the upper surface as well as the lower surface of the upper bone plate, and the lower bone plate is provided with the same embedded clamp slots at the corresponding positions.As clamping is completed in one step rapidly and easily, centering and directional correcting during clamping of the product can be avoided, and surgical difficulty can be reduced while surgical operation time can be shortened effectively.
Description
technical field [0001] The invention relates to the field of medical technology, in particular to an intervertebral motion preservation device, a guided implantation instrument and an implantation method thereof. Background technique [0002] Intervertebral motion preservation devices currently have Bryan, Prestige product series, ProDisc C, Mobi-C, PCM, SRCURE-C and other products that have been approved by the FDA and are widely used around the world. implanted device products, but there is still room for improvement in some special implanted device products. At present, there is no intervertebral motion-preserving device approved by CFDA in China. Most of the domestic intervertebral motion-preserving devices are in the patent stage, and few of these patented products have targeted design of special implantation devices. [0003] For some common special implantation devices for intervertebral motion preservation devices, the clamping head part of the front end is usually ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): A61F2/44A61F2/46
CPCA61F2/30767A61F2/44A61F2/4611A61F2002/30518A61F2002/4615A61F2002/4625A61F2002/4631
Inventor 刘伟强祝佳廖振华卢俊哲徐林俞兴穆晓红
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN