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Intervertebral movable indwelling device and its assembled implanting apparatus and method

A retaining device, pre-installed technology, applied in the medical field, can solve the problems of difficult operation, complicated implantation process, long operation time, etc., and achieve the effect of simple implantation method, reduction of operation time and difficulty of operation.

Active Publication Date: 2018-12-11
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention aims to solve the following problems in the traditional intervertebral motion preservation device implantation instrument and implantation method: ① the implantation process of the traditional intervertebral motion preservation device is complicated, the operation is difficult, and the operation time is relatively long; ② the traditional The upper and lower bone plates of the intervertebral motion-preserving device have a clamping groove structure corresponding to the implanted instrument, which usually has a large resection of the upper and lower bone plates, resulting in obvious stress concentration on the upper and lower bone plates, and the bearing capacity of the intervertebral motion-preserving device is reduced. The problem

Method used

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  • Intervertebral movable indwelling device and its assembled implanting apparatus and method
  • Intervertebral movable indwelling device and its assembled implanting apparatus and method
  • Intervertebral movable indwelling device and its assembled implanting apparatus and method

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Embodiment Construction

[0045] The present invention will be further detailed below in conjunction with the accompanying drawings:

[0046] See figure 1 , 2 , 3 shows an intervertebral motion retention device I and the corresponding pre-installed implanted device II. The intervertebral motion retention device I is composed of an upper bone plate 1, an inner lining 2, a nucleus pulposus 3, and a lower 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 inner lining 2 and the nucleus pulposus 3 form a clearance-fit spherical friction pair; the preassembled implant device II is composed of a clamping head 5, a cage 6, a gripping rod 7, a spreading rod 8 and a knob 9. The clamping head 5 and the holder 6 constitute a pre-assembled clamping member, which is pre-assembled with the intervertebral motion retention device I for aseptic packaging. The holding rod 7, the spreading rod 8 and the knob 9 constitute the outer trans...

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Abstract

The invention relates to the technical field of medicines, in particular to an intervertebral movable indwelling device and its assembled implanting apparatus and method, and discloses an intervertebral movable indwelling device and its corresponding assembled implanting apparatus. The intervertebral movable indwelling device comprises an upper bone plate, a liner, a vertebral core and a lower bone plate, wherein the liner is embedded 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. The assembled implanting apparatus comprises a holder, a retainer, a grip, a retracting rod and a knob, wherein the holder and the retainer form an assembled clamping member which is further assembled with the intervertebral movable indwelling device to be subjected to aseptic packaging, the grip, and the retracting rod and the knob form a clamp outer transmission member which is connectedwith the assembled clamp member packaged with the intervertebral movable indwelling device. During surgical operation, the clamp outer transmission member and the assembled intervertebral movable indwelling device in aseptic packaging are combined to complete clamping, thereby facilitating implanting.

Description

Technical field [0001] The invention relates to the field of medical technology, in particular to an intervertebral motion retention device, a pre-installed implantation device and an implantation method thereof. Background technique [0002] Intervertebral motion retention 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 all over the world. These products are equipped with their unique and dedicated implants. Imported device products, but some special implanted device products also have room for improvement. There is currently no intervertebral motion retention device in China that has been approved by the CFDA, and most of the domestic intervertebral motion retention devices are in the patent stage, and few of these patented products have targeted specific implant devices. [0003] Most of the special implanted devices of the intervertebral motion retention device are...

Claims

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Application Information

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IPC IPC(8): A61F2/44A61F2/46
CPCA61F2/30767A61F2/44A61F2/4611A61F2002/4625A61F2002/4631A61F2002/4615A61F2002/30518
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
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