A height-adjustable self-locking intervertebral fusion device

An intervertebral fusion, self-locking technology, applied in the direction of spinal implants, etc., can solve the problems of increasing the difficulty of surgery and complicated operation, and achieve the effect of reliable self-fixation, ensuring angle adaptation, and good stability

Active Publication Date: 2021-08-13
深圳协同创新高科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing adjustable intervertebral fusion devices, the adjustment method is mostly pre-adjusted and then implanted in the body. The operation is more complicated. Although the angle and height adjustment can be realized, it needs to be adjusted in advance and fixed with external screws, which increases the operation time. difficulty

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  • A height-adjustable self-locking intervertebral fusion device
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  • A height-adjustable self-locking intervertebral fusion device

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Embodiment Construction

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connecti...

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Abstract

The invention discloses a height-adjustable self-locking intervertebral fusion device, which includes an elastic mechanism, which is arranged in a casing, and the upper and lower sides of the elastic mechanism are respectively clamped and connected with an upper fusion plate and a lower fusion plate. A chute is provided at one end of the chute, and a closing plate is arranged in the chute. The closing plate controls the depth of screwing in / out of the shell through a threaded rod. The elastic variation of the elastic mechanism is greater than the variation of the height of the fusion device. The matching depth of the elastic mechanism realizes the control of the height of the intervertebral cage. On the premise of realizing the simultaneous adjustment of the upper and lower heights, the present invention also ensures self-adaptation at a certain angle and continuous force on the upper and lower end plates, and is reliable in self-fixation.

Description

technical field [0001] The invention belongs to the technical field of artificial prosthesis design, in particular to a height-adjustable self-locking intervertebral fusion device. Background technique [0002] Intervertebral fusion is to remove the diseased intervertebral disc to reduce or completely release the pressure caused by the protrusion, and at the same time, it needs to provide fusion and fixation to maintain the intervertebral height. [0003] In the existing adjustable intervertebral fusion devices, the adjustment method is mostly pre-adjusted and then implanted in the body. The operation is more complicated. Although the angle and height adjustment can be realized, it needs to be adjusted in advance and fixed with external screws, which increases the operation time. difficulty. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a height-adjustable self-locking intervertebral fusion device for the abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2/4465
Inventor 王玲张童童董恩纯李涤尘康建峰
Owner 深圳协同创新高科技发展有限公司
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