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Minimally invasive spinal canal dilatation cutting tool

A technique of minimally invasive surgery and expansion tools, which is applied in the field of surgical medical devices to achieve the effects of small trauma, avoiding secondary trauma, and shortening the recovery period

Active Publication Date: 2015-01-07
SUZHOU IDEAL MEDICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For spinal stenosis and dilation, minimally invasive still faces many difficulties
So far, there is no surgical method and corresponding special surgical tool that can realize the minimally invasive surgery of spinal canal dilatation.

Method used

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  • Minimally invasive spinal canal dilatation cutting tool
  • Minimally invasive spinal canal dilatation cutting tool
  • Minimally invasive spinal canal dilatation cutting tool

Examples

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] The surgical tool proposed in this program is applied to the new minimally invasive spinal canal dilation surgery. The patient has a percutaneous drill hole of about 5 mm. The pedicle bone is lengthened and then fixed. By lengthening the pedicles, the space of the spinal canal is enlarged.

[0031] For minimally invasive surgery, the size of the drill hole is the space for the tool to operate after entering. It must be required that the tool can complete t...

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Abstract

The invention relates to a minimally invasive spinal canal dilatation cutting tool, which comprises a drilling tool, a cutting tool, a bone grinding tool, a dilatation tool, screws and a positioning guide rod which are matched with one another, wherein the drilling tool, the dilatation tool and the screws are provided with through holes, and the drilling tool comprises a drill bit; the cutting tool comprises a cutting knife, and the bone grinding tool comprises a bone grinding mechanism; the dilatation tool comprises a dilatation mechanism, and the drilling tool also comprises a fastening strip; and the cutting tool also comprises a first bayonet, and the bone grinding tool also comprises a second bayonet. The surgical tool is applied to new minimally invasive spinal stenosis dilatation and is used for cutting off, lengthening and re-fixing the pedicle bone. All tools operate in a bore with a diameter of about 5mm and are used for cutting off, lengthening and re-fixing the pedicle bone from the inside out and expanding the canalis vertebralis. The minimally invasive spinal canal dilatation surgery is realized, the wound surface of a patient is small, the period of recovery from surgery for the patient is greatly shortened, and the surgery cost is low.

Description

technical field [0001] The invention relates to a medical instrument for surgery, in particular to a minimally invasive surgical tool for spinal canal stenosis used in spinal surgery. Background technique [0002] Spinal stenosis is one of the common diseases in middle-aged and elderly patients. Spinal stenosis is caused by bone hyperplasia in the lumbar spine itself, which causes the spinal canal to become smaller and squeezes the nerves passing through it, causing pain, inability to bend the waist, and numbness of hands and feet. , walking with a limp, etc. Spinal stenosis dilation is one of the main operations in spinal surgery. Performing spinal canal dilation requires the use of specialized surgical tools. [0003] At present, spinal stenosis dilation is an open operation. It needs to make an incision with a length of more than 10 cm on the patient's back, and then cut off and re-fix the vertebrae. This kind of open surgery has a large trauma area and damages soft ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/56A61B17/22
Inventor 罗宗平杨惠林
Owner SUZHOU IDEAL MEDICAL APPLIANCE
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