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Flexible combined fixing device for spine

A fixed device and combined technology, applied in the field of medical devices, can solve the problems of slow recovery and strong discomfort of patients, and achieve the effect of comfortable postoperative recovery, stable connection and increased stability

Active Publication Date: 2020-06-26
THE AFFILIATED HOSPITAL OF GUIZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing spinal fixation devices are all rigid fixed connections, but in actual use, because the connection between the spinal bone blocks needs to have a certain degree of elasticity, the purely rigid connection on the one hand recovers slowly, and on the other hand, the patient's actual Strong discomfort during use

Method used

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  • Flexible combined fixing device for spine
  • Flexible combined fixing device for spine
  • Flexible combined fixing device for spine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A flexible combined fixation device for the spine, including fixation nails 1 and connecting rods 2:

[0023] The number of fixing nails 1 and the number of connecting rods 2 are multiple. The fixing nails 1 include a nail body 3 and a nail head 4. The nail body 3 is used to nail into the vertebra, and the nail head 4 is used to fix the connecting rod 2; the connecting rod 2 Including the head end and the tail end, the shape of the head end and the tail end is consistent; two fixing nails 1 can be fixedly connected to the head end and tail end of a connecting rod 2, and each nail head 4 can fix up to two connecting rods 2 at one time ;

[0024] The position where two connecting rods 2 are connected on each fixing nail 1 can lock the connecting rods 2 independently, and the position where two connecting rods 2 are connected on a single fixing nail 1 is flexibly connected.

[0025] The nail body 3 is nail-shaped, and the peripheral wall is provided with threads, which ca...

Embodiment 2

[0032] This example introduces a simple method of use:

[0033] When in use, drill holes in the spine first, and then insert the fixation nails. Other operations before placing the fixation nails will not be repeated here;

[0034] After placement, the fixation nails are firmly connected to the vertebrae, and then a connecting rod is inserted between two adjacent fixation nails, and the first fixing block is screwed in to fix the connecting rod;

[0035] Then screw into the second fixed block, insert the second connecting rod, screw into the third fixed block, and adopt the other end of the connecting rod 2 inserted between the first ear 44 and the second ear 46 to insert the connecting rod 2 respectively Different fixation nails 1 are connected, so that the three fixation nails 1 are connected by two connecting rods 2 to connect each spinal bone, so that there is a stable fixed connection between adjacent vertebrae, and the adjacent three Slight movement can be generated bet...

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Abstract

The invention relates to a flexible combined fixing device for a spine. Each fixing nail can be connected with two connecting rods, so that a mode of connecting the adjacent fixing nails is very stable, and connection of the multiple fixing nails is relatively flexible, so that the fixing device is more suitable for recovery after an actual spine operation. The two connecting rods are connected with the fixing nails, but the two connecting rods have certain elasticity and flexibility, and if a spaced connecting mode is selected, namely a mode of connecting two connecting rods by three fixing nails is adopted, certain flexibility can be guaranteed; if a mode of connecting every two adjacent fixing nails by two connecting rods is selected, connecting stability can be improved, strength requirement of each connecting rod is reduced, and therefore, requirements on material selection, size and the like of the connecting rods can be reduced.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a flexible combined fixation device for the spine. Background technique [0002] Scoliosis, commonly known as scoliosis, is a three-dimensional deformity of the spine, including sequence abnormalities in the coronal, sagittal and axial positions. The spine of a normal person should be straight when viewed from the back, and the sides of the trunk should be symmetrical. Severe scoliosis will affect the growth and development of infants and adolescents, deforming the body. In severe cases, it can affect the heart and lung function, and even involve the spinal cord, resulting in paralysis. Mild scoliosis can be observed, and severe cases require surgical treatment. Scoliosis is a common disease that endangers adolescents and children, and the key is early detection and early treatment. Severe scoliosis requires corrective surgery, which requires immobilization of the spine. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70A61B17/86
CPCA61B17/7074A61B17/8625A61B17/862A61B2017/8655
Inventor 杨磊落石微微胡广
Owner THE AFFILIATED HOSPITAL OF GUIZHOU MEDICAL UNIV
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