Transdermal-puncture annulus-fibrosus-excision intervertebral disc degrading modeling device and operating method therefor

Abstract

The invention discloses a transdermal-puncture annulus-fibrosus-excision intervertebral disc degrading modeling device. The device comprises an operating lever and a miniature ring drill located at the end part of the operating lever, wherein the end part of the miniature ring drill is of an annular serrate or spiral shape. The operating method for the transdermal-puncture annulus-fibrosus-excision intervertebral disc degrading modeling device comprises the steps: firstly, puncturing skin by a puncture guide pin so as to locate a test intervertebral interspace position; inserting the punctureguide pin into an intervertebral interspace, and then, inserting the operating lever along the puncture guide pin; inserting the operating lever until a locating stop is in contact with a lumbar vertebra, wherein the length of the operating lever inserted between lumbar vertebrae is 4mm; and rotating the operating lever, so as to excise annulus fibrosus by using the miniature ring drill at the endpart of the operating lever. The device has the advantages that the annulus fibrosus can be subjected to annular excision by only carrying out transdermal puncture on an intervertebral disc of a rabbit, nucleus pulposus decompression can be caused, and thus, intervertebral disc degrading is formed; the consumed time is relatively short, and only 5-10 seconds are required for each annulus fibrosusexcision; and the efficiency is relatively high, the device is applicable to modeling of large-scale multi-factor experiment-research intervertebral disc degrading animal models, and the test research cost is reduced.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a percutaneous annulus excision intervertebral disc degeneration modeling device and an operating method thereof. Background technique [0002] 39-42% of degenerated intervertebral discs are the source of pain in chronic low back pain. Multiple operations and long-term drug treatment cost a lot, causing heavy economic burden to patients and society. At present, in order to find effective diagnosis and treatment methods for such diseases, the more common way is through animal experiments. [0003] Animal experiments are the main way to study various treatments for delaying or reversing degenerative disc diseases, and to verify their effectiveness and safety. However, so far there is no ideal animal model modeling tool that can be used to observe the pathological process of intervertebral disc degeneration in vivo. [0004] Various rodent animal models have been used to study i...

AI Technical Summary

Problems solved by technology

In the prior art, this model mostly uses the "ten" incision method, and the No. 11 blade damages the annulus fibrosus to induce intervertebral disc degeneration. The extent and depth of the annulus fibrosus damage are uncontrollable, and it is not easy to observe the depth of the blade piercing the annulus fibrosus

In addition, superb surgical skills and operations, sophisticated surgical instruments and testing instruments are required, and it takes a long time to wait for degeneration to form.

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