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Operation channel used in lumbar spinal fusion under foramen intervertebrale mirror

A technology of intervertebral foramina and surgical access, which is applied in the field of surgical access, can solve problems affecting surgical efficiency, delaying surgical treatment, and unclear vision, so as to avoid nerve damage, reduce the probability of accidental nerve injury, and increase safety. Effect

Pending Publication Date: 2020-05-08
陈鸣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Lumbar fusion requires the implantation of the fusion device into the spine under the intervertebral foramen. This operation requires professional surgical instruments to complete. At present, most of the special surgical instruments for this type of operation in the domestic market are sorted out from commonly used instruments. , not only wastes time, but also greatly affects the efficiency of surgery and delays surgical treatment; moreover, the biggest risk of this surgery is how to safely implant the intervertebral fusion device into the intervertebral body without loss of nerve roots, and can be observed under a microscope. At the same time, the diameter of the channel should be reduced as much as possible, because the larger the diameter, the easier it is to damage the nerve and cause catastrophic consequences. It deals with the intervertebral space quickly, and it is very important to quickly and safely place the conventional large cage into the intervertebral space

Method used

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  • Operation channel used in lumbar spinal fusion under foramen intervertebrale mirror
  • Operation channel used in lumbar spinal fusion under foramen intervertebrale mirror
  • Operation channel used in lumbar spinal fusion under foramen intervertebrale mirror

Examples

Experimental program
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Effect test

Embodiment 1

[0036] see Figure 2-4 , a surgical channel used in transforaminal endoscopic lumbar fusion, comprising a tube body 1 and a tube tail 2, the tube body 1 is fixedly connected to the front end of the tube tail 2, and the tube body 1 has a section of C-shaped semi-closed shape, the C-shaped section is arc-shaped and its arc is slightly larger than 2π / 3, the front end of the pipe body 1 is fixedly connected with a protruding cut-in portion 3, and the diameter of the pipe body 1 is 13mm.

[0037] The cross-section of the rear end of the pipe tail 2 is a compound shape of a circle and a rectangle, and the rectangle part is a frame 701 with a height of 12mm.

[0038] In this embodiment, in order to further reduce the inner diameter of the channel inserted into the intervertebral foramen and improve safety, the front end of the tubular body 1 is a transition zone 4 where the diameter gradually decreases, and the cut-in portion 3 is a strip shape, the front edge of which is smooth arc...

Embodiment 2

[0042] On the basis of the above-mentioned embodiment 1, in order to facilitate the operation of surgical instruments such as trepan saws, bone drills, and intervertebral foramina mirrors, the section of the tube tail 2 is a compound shape of a circle and a rectangle. The rectangular part extends forward and together with the corresponding part of the pipe body forms the installation position 7 for installing the conversion channel 6, wherein the height of the rectangular part of the installation position 7 is 10 mm, and the rear end of the conversion channel 6 is a circular shape The positioning piece 601, the front end of the positioning piece extends forward and is fixedly connected with two cylindrical pipes 602 of different lengths. The diameter of the pipe 602 is 7.8mm, which is convenient for installing the intervertebral foramen mirror (generally, the diameter is 7.5mm). At this time, when using the intervertebral foramina mirror, water is added through the replacement ...

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PUM

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Abstract

An operation channel used in lumbar spinal fusion under foramen intervertebrale mirror comprises a tube body (1) and a tube tail (2), the tube body (1) is fixedly connected to the front end of the tube tail (2), and the operation channel is characterized in that the front end of the tube body (1) is fixedly connected with a protruding incision part (3); wherein the front end part of the tube body(1) is a transition area (4) of which the tube diameter is gradually reduced, the incision part (3) is strip-shaped, the edge of the front end of the incision part (3) is smooth arc-shaped, and the other end of the incision part (3) is fixedly connected to the middle position of the transition area (4).

Description

technical field [0001] The invention relates to the technical field of medical instruments, and more specifically relates to an operation channel used in lumbar fusion under transforaminal mirror. Background technique [0002] Since Harms first proposed the concept of transforaminal lumbar interbody fusion (TLIF) in 1982, this technique has been widely used clinically in various degenerative diseases of the lumbar spine. However, in clinical practice, traditional posterior surgery is mostly open surgery, with a wide range of soft tissue stripping, long tissue stretching time, large surgical trauma, and a maximum postoperative bed rest of up to 3 months. [0003] As the concept of minimally invasive spinal surgery continues to deepen, transforaminal endoscopic spinal minimally invasive technology represents a new development direction of minimally invasive surgery. It means that more patients can complete intervertebral disc removal under local anesthesia, immediately relieve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B90/00
CPCA61B17/00234A61B90/08A61B2017/0034A61B2090/08021A61B2017/00261
Inventor 陈鸣吕游任永信高杨李潇
Owner 陈鸣
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