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Fusion cage and implantation instrument

A cage and cone-head technology, applied in joint implants, joint implants, spinal implants, etc., can solve the problems of unrelieved symptoms, backward odontoid process, compression, etc., and reduce broken nails Risk of broken rods, improved compression, good surgical results

Pending Publication Date: 2020-11-10
陆云涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fusion device simply restores the deformed joint from the height of the pituitary gland, but because the deformity of the occipital-cervical junction is often combined with the reduction of the axis angle of the slope, and causes the posterior shift of the odontoid process, the existing fusion device cannot change the slope well Axis angle, resulting in pressure on the ventral side of the medulla oblongata and upper cervical cord after surgery, so that the symptoms cannot be relieved

Method used

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  • Fusion cage and implantation instrument
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  • Fusion cage and implantation instrument

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0027] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a fusion cage and an implantation instrument, and belongs to the technical field of medical instruments. The fusion cage is used for being arranged between two joints of a to-be-reset area in the first direction, the fusion cage comprises a conical head and two parallel and opposite conical columns connected with the conical head, the shape of each conical column in the first direction is an isosceles trapezoid, the included angle between the waist of the isosceles trapezoid and the axis of the isosceles trapezoid ranges from 0 degree to 20 degrees, and the height of thefusion cage in the first direction ranges from 4 cm to 12 cm. Through the cooperative use of a series of different heights and included angles, restoration can be conducted in the horizontal direction and the vertical direction respectively, atlantoaxial dislocation restoration can be achieved, the slope axis angle can be effectively restored, the quantitative reduction effect is achieved in combination with preoperative imageology data, and the operation effect is better.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a fusion device and an implantation instrument. Background technique [0002] At present, for the reduction of the deformity of the atlanto-occipital junction, the posterior occipital-cervical fusion technique is mostly used, and the dislocation between the atlanto-tooth and the atlanto-axis is reset by screw rods. However, the deformity of the atlanto-occipital junction is mostly caused by the developmental deformity of the lateral cervical 1 / 2 joints. Simple posterior reduction often results in the displacement of the lateral cervical 1 / 2 joints (anterior or posterior opening of the mouth), so the reduction effect is often not satisfactory. Satisfactory, the patient's clinical symptoms cannot be relieved well; and the stress between the joints is completely concentrated on the rear screw-rod system, which greatly increases the risk of postoperative screw-rod fractur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61F2/46A61B17/70
CPCA61F2/4455A61F2/4611A61F2/4601A61B17/7064A61B17/7074A61B17/7002A61B2017/564
Inventor 陆云涛漆松涛彭林周强李宏李俊杰
Owner 陆云涛
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