An expandable spinal fusion cage

A cage, spine technology

Active Publication Date: 2016-09-21
ZHONGSHAN SHIYITANG MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing expandable spinal fusion device has irregular protrusions formed under the action of the force-applying mechanism, and it is difficult to control the deformation of the protrusions. When the doctor applies it to the patient's spine for surgery, it is likely to cause safety hazards

Method used

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  • An expandable spinal fusion cage
  • An expandable spinal fusion cage
  • An expandable spinal fusion cage

Examples

Experimental program
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Embodiment Construction

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] like Figure 1 to Figure 7 As shown, an expandable spinal cage includes an outer expansion tube 1 and a cylindrical inner core 2 arranged in the outer expansion tube 1, and one end of the outer expansion tube 1 and the cylindrical inner core 2 Fixed connection, the outer expansion tube 1 is provided with an expansion deformation portion 11 that can expand and deform to form a bulge under the action of an external force. The present invention provides an expandable spinal fusion cage, which can be used in the Under the action of the force-applying mechanism, it expands and deforms, and its height and precision are expanded and deformed according to the preset size, which greatly enhances the precision of the operation, facilitates the rapid operation, and relieves the pain of the patient.

[0032] like Figure 1 to Figure 7 As shown, in this embodiment,...

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PUM

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Abstract

The invention relates to an expandable spinal fusion cage comprising an outer layer expansion tube (1) and a cylindrical inner core (2) located in the outer layer expansion tube (1). The outer layer expansion tube (1) is fixedly connected with one end of the cylindrical inner core (2); the outer layer expansion tube (1) is provided with expansion deformation parts (11) which can expand and deform by the action of external force to form protrusions. The expandable spinal fusion cage can expand and deform by the action of a force application mechanism and the height can be changed according to predetermined dimensions with high precision, so that the accuracy of surgery is improved, surgery can be carried out rapidly and pain is relieved for patients.

Description

【Technical field】 [0001] The present invention relates to an expandable spinal cage. 【Background technique】 [0002] Lumbar intervertebral disc degenerative disease is a common type of disease that causes low back and leg pain and dysfunction, generally manifested as discogenic low back pain, lumbar facet joint disorder or venereal disease caused by nerve compression, and can also cause intervertebral space stenosis. In severe cases, lumbar spine may occur. Slippage embolism, affecting the patient's work and life. At present, the commonly used treatment methods include conservative treatment, minimally invasive surgery and surgical treatment, among which lumbar fusion is a reliable treatment method. [0003] Existing spinal cages are usually block-shaped and will not expand and deform. During the operation, the doctor needs to cut an opening between the patient's spines, and then fill the spinal cage into the opening between the patient's spines. inside, and finally suture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2002/30075
Inventor 徐世隆梁振耀姜小鹏
Owner ZHONGSHAN SHIYITANG MEDICAL EQUIP
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