Trans-belt nerve monitoring of lumbar foraminal enlargement plasty

Abstract

A transcutaneous lumbar intervertebral foramen enlargement and shaping instrument with a nerve monitoring function, at least comprising a plurality of soft tissue expansion tubes (1) incrementally increasing in size, a plurality of expansion sleeves (2) incrementally increasing in size and a plurality of protective sleeves (3) incrementally increasing in size; the soft tissue expansion tubes (1), the expansion sleeves (2) and the protective sleeves (3) all comprise a tube body and an insulated handle (6) disposed on an end of the tube body; the tube bodies all comprise an insulated outer wall and a metal inner wall; a conductive portion (4) having an electrical connection with the metal inner wall and to be electrically connected to a nerve detector is disposed on the insulated outer wall. The shaping instrument has high safety when performing transcutaneous lumbar intervertebral foramen enlargement and shaping, can be used with the nerve detector, further ensuring the operational safety of a surgical procedure.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a lumbar intervertebral foramen enlargement forming instrument for monitoring through belt nerves. Background technique [0002] Lumbar disc herniation is a common and frequently-occurring disease. Its symptoms mainly include low back pain and radiating pain in the lower limbs. In severe cases, cauda equina syndrome may occur, which seriously affects the patient's ability to work and social life. [0003] In 1934, total laminectomy or partial laminectomy with fenestration for decompression through the posterior lumbar spine, and removal of the herniated intervertebral disc became the standard treatment for lumbar disc herniation. However, during the operation, it is necessary to partially remove the fibrous ring on the ventral side of the nerve root so that the instrument can enter the intervertebral disc to remove the nucleus pulposus tissue in the disc, leaving a fibrous ring channel af...

AI Technical Summary

Problems solved by technology

However, the controllability of laser and micro-ball milling drills is poor, and the probability of nerve root injury is high; foreign intervertebral foramen trephine systems are operated outside the working sleeve of the intervertebral disc mirror, which lacks protection for the surrounding soft tissues and nerve roots, and has poor safety

In addition, when the existing percutaneous lumbar intervertebral foramina enlargement instrument for percutaneous nerve monitoring acts on the percutaneous lumbar intervertebral space, the operator needs to be extremely careful in the operation, otherwise the nerve will be touched by a little carelessness, which will not only bring pain to the patient, but also If the nerve is damaged, the operation will fall short

In the prior art, there is a nerve detector for detecting nerves. When it senses nerves through electric waves, it will send out an alarm signal. The detection results are more accurate. If it can be applied to percutaneous lumbar foraminoplasty The above-mentioned technical problems can be solved, but the existing percutaneous lumbar foraminoplasty surgical instruments do not have the function of cooperating with it

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