Centrum non-fusion interspinous device

An interspinous, non-fusion technology, applied in the field of medical devices, can solve problems such as removal of vertebral bodies, acceleration of degeneration, implant displacement, etc., to achieve easy displacement and prolapse, improve load increase, and simplify operation procedures Effect

Inactive Publication Date: 2014-03-12
ZHEJIANG KANGCI MEDICAL TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Although some artificial vertebral bodies have the adjustability to restore the height of the vertebral body, the biggest disadvantage is that the mobility of the vertebral body at the surgical site is completely removed.
Obviously, there are still some problems to be solved in some aspects of the traditional artificial vertebral body, especially the in

Method used

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  • Centrum non-fusion interspinous device
  • Centrum non-fusion interspinous device
  • Centrum non-fusion interspinous device

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Embodiment Construction

[0016] see Figure 1-Figure 3 , the present embodiment is made of titanium alloy material, which is composed of the front 1 of the vertebral body, the middle part of the vertebral body 2 and the posterior part of the vertebral body 3, which are sequentially connected as an integral structure. The anterior part 1 of the vertebral body and the posterior part 2 of the vertebral body have the same structure, both of which are U-shaped groove structures, and the opening directions of the U-shaped grooves of the two are opposite. The middle part of the vertebral body 2 has an S-shaped structure, the upper end of the S is located at the bottom of the U-shaped groove at the front of the vertebral body, and the lower end of the S is located at the bottom of the U-shaped groove at the rear of the vertebral body; due to the S-shaped structure There is a gap between them, so that the non-fusion vertebral body is elastic in the longitudinal direction and can be compressed, which is benefic...

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Abstract

The invention discloses a medical instrument and particularly discloses a centrum non-fusion interspinous device which is used for spinal fixation. The device is composed of a front centrum part, a middle centrum part and a rear centrum part, wherein the front centrum part, the middle centrum part and the rear centrum part are sequentially connected into an integral structure. The front centrum part and the rear centrum part are respectively of a U-shaped groove structure. The opening direction of the U-shaped groove of the front centrum part and that of the U-shaped groove of the rear centrum part are opposite. The middle centrum part is of an S-shaped structure, the upper end of the S-shaped structure is located at the bottom of the U-shaped groove of the front centrum part, and the lower end of the S-shaped structure is located at the bottom of the U-shaped groove of the rear centrum part. The centrum non-fusion interspinous device has the advantages that the operation wound is small, the centrum mobility and stability are good after operation, and an implant is not prone to being displaced or disengaged.

Description

technical field [0001] The invention relates to a medical device, in particular to a non-fused vertebral interspinous process device for spinal fixation. Background technique [0002] At present, in the treatment of spinal lesions or injuries, spinal fixation devices are generally used to fix the spine, or artificial vertebral bodies are used as substitutes for surgery. [0003] Commonly used spinal fixation devices are composed of longitudinal rods and pedicle screws, and the connection and fixation of the longitudinal rods and pedicle screws will have a direct impact on the effect and quality of the operation. The connection and fixation of the longitudinal rod and the pedicle screw are all through the fastening method of tightening the screw. This method is not only inconvenient to operate, but also the screw head of the pedicle screw is easy to be stretched out when the screw is tightened, causing surgery fail. If the screw head of the pedicle screw is to be prevented ...

Claims

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Application Information

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IPC IPC(8): A61B17/70A61F2/44
CPCA61B17/7062A61B2017/7073
Inventor 周建明
Owner ZHEJIANG KANGCI MEDICAL TECH
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