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Minimally invasive lumbar surgery retractor

A surgical retractor and lumbar spine technology, applied in the field of surgical retractors, can solve problems such as inconvenient use and operation, and achieve the effects of avoiding displacement, overcoming easy decoupling, and stably exposing the surgical area.

Inactive Publication Date: 2015-10-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the retractor operation does not have the function of contraction or expansion, and it is inconvenient to use and operate.

Method used

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  • Minimally invasive lumbar surgery retractor
  • Minimally invasive lumbar surgery retractor
  • Minimally invasive lumbar surgery retractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] A kind of retractor for minimally invasive lumbar spine surgery, such as figure 1 , figure 2 As shown, it includes a right-angled draw hook main body 3, the tail end of the right-angled draw hook main body 3 is a handle 1, and the right-angled draw hook main body 3 is connected with the handle 1 by means of a connecting part 2, and it is characterized in that the middle of the right-angled draw hook main body 3 head There is a chute 31, the sliding buckle 5 is slidably connected in the chute 31, and two blades 4 are rotationally connected on both sides of the right-angled hook body 3, and the blades 4 can be rotated to an extended state or retracted into the right-angled hook body 3 , when the two blades 4 are stretched, they are mounted on the adjacent transverse processes, and the sliding buckle 5 is used to lock the blades 4 to control the extension or contraction of the blades 4.

[0025] Such as image 3 As shown, there is a groove 32 in the middle of the lower ...

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PUM

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Abstract

The invention relates to a minimally invasive lumbar surgery retractor. The minimally invasive lumbar surgery retractor comprises a right-angle-shaped retractor body, the tail end of the right-angle-shaped retractor body is provided with a handle, the right-angle-shaped retractor body is connected with the handle in virtue of a connecting portion, a sliding groove is formed in the middle of the head portion of the right-angle-shaped retractor body, a sliding buckle is connected into the sliding groove in a sliding mode, two blades are rotationally connected to the two sides of the right-angle-shaped retractor body, the blades can rotate to be in a stretch state or retracts into the right-angle-shaped retractor body, and the sliding buckle is used for locking the blades and controlling the blades to stretch or retract. Compared with the prior art, by means of the minimally invasive lumbar surgery retractor, through the change of the positions of the sliding buckle, stretch and retract of the blades are achieved, in addition, the blades are fixed to a specific position, namely, the blades enter a minimally invasive incision in a retract state, the blades stretch while reaching a deep portion of the tissue, the retractor is set up above two adjacent transverse processes, so that an operating area of a mis-TLIF operation is exposed, the facts that a traditional retractor is shifted and the unnecessary overexposure of the soft tissue is caused can be avoided, and meanwhile the defect that the traditional retractor is prone to being unhooked is overcome.

Description

technical field [0001] The invention relates to an operation retractor, in particular to a minimally invasive lumbar operation retractor. Background technique [0002] When performing minimally invasive open spinal surgery, it is often necessary to retract the paravertebral tissue with the help of a lamina retractor to expose the operative field. The use of lamina retractors can fully expose the surgical field. The conventional method is to fix the lamina retractor on the tip of the transverse process. In this way, the paravertebral muscles need to be stripped to expose the transverse process, and a large area of ​​paraspinal muscles and other soft tissues need to be stripped off. Moreover, the lamina retractor is easy to shift, and the lamina retractor needs to be adjusted repeatedly. position, thereby increasing tissue trauma and prolonging operation time. Moreover, the operation area of ​​minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) is only the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/02
CPCA61B17/0218A61B2017/0225A61B2017/0256
Inventor 晏美俊夏冬冬张靖杰韩应超郭松谭军
Owner TONGJI UNIV
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