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Lumbar interbody fusion fixing device adopting automatic screws for fixing

A screw fixation and fixation device technology, which is applied in the field of medical devices, can solve the problems of lumbar nerve damage, difficult positioning, fusion device displacement, etc., and achieve the effects of reducing intraoperative injury, firm fixation, and preventing prolapse

Inactive Publication Date: 2017-04-05
175TH HOSPITAL OF PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of nail-plate or nail-rod auxiliary fixation is difficult to locate and cumbersome to operate. The lumbar nerve often crosses the surface of the implant, which will stimulate the lumbar nerve and cause nerve damage, and it can still be observed in clinical practice that the joint application of nail-rod or nail-plate system Patient with fusion cage displacement

Method used

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  • Lumbar interbody fusion fixing device adopting automatic screws for fixing
  • Lumbar interbody fusion fixing device adopting automatic screws for fixing
  • Lumbar interbody fusion fixing device adopting automatic screws for fixing

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Embodiment Construction

[0028] The technical solutions of the present invention will be further illustrated and described below through specific embodiments in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, an automatic screw-fixed lumbar intervertebral fusion fixation device includes a body 1 made of PEEK (polyether ether ketone) and a fixing piece 2 made of titanium alloy, the fixing piece 2 is connected to the tail end of the body 1 Specifically, the fixing part 2 is connected with the tail end of the body 1 through a slot structure.

[0030] Such as Figure 1 to Figure 3 As shown, the main body 1 has a front aggregate filling cavity 11 and a rear aggregate filling cavity 12 that pass through up and down. The front aggregate filling cavity 11 and the rear aggregate filling cavity 12 are separated by a central wall 13, and the front aggregate filling cavity The two side walls of the cavity 11 have two through bone graft windows 110, and the two side walls of the r...

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Abstract

The invention discloses a lumbar interbody fusion fixing device adopting automatic screws for fixing. The lumbar interbody fusion fixing device comprises a body made of polyetheretherketone (PEEK) and a fixing part made of a titanium alloy material. The fixing part is connected with the tail end of the body. A developing part made of a titanium alloy material is arranged on the body and used as a structure mark in the position 1.0-1.5 mm away from the front end of the body during imaging. The lumbar interbody fusion fixing device adopting the automatic screws for fixing can be used for minimally invasive channel placement, including direct lateral interbody fusion (DLIF) and oblique lumbar interbody fusion (OLIF). According to the lumbar interbody fusion fixing device adopting the automatic screws for fixing, the body and the fixing part can be placed inwards together, unnecessary shifting is prevented, fixing is firm, the surgical steps can be simplified through together placement, the surgical time is shortened, the surgical difficulty is lowered, and intraoperative injury of a patient is reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an automatic screw-fixed lumbar intervertebral fusion fixation device. Background technique [0002] Lumbar interbody fusion is widely used in lumbar degenerative disc diseases, such as lumbar disc herniation, lumbar spinal stenosis, spondylolisthesis, and lumbar degenerative scoliosis. The more traditional surgical methods include posterior lumbar interbody fusion (TLIF and PLIF) and anterior lumbar interbody fusion (ALIF). Although the posterior fusion surgery has a definite curative effect and a high fusion rate, it still has some shortcomings, such as muscle denervation caused by dissection of the paraspinal muscles and chronic low back pain, adhesion and scarring of tissues inside and outside the spinal canal and around nerve roots, and intervertebral disc The resection range is small, resulting in residual nucleus pulposus tissue and recurrence of lumba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61B17/70
CPCA61F2/4455A61B17/00234A61B17/70
Inventor 林斌吴松松
Owner 175TH HOSPITAL OF PEOPLES LIBERATION ARMY
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