Adjustable lumbar scraping spoon

Abstract

The invention relates to an adjustable lumbar scraping spoon, and belongs to the technical field of medical apparatuses of orthopedic operation instruments of medical equipment. The adjustable lumbarscraping spoon comprises an adjusting structure, scraping structures, an upper fixing structure and a lower fixing structure; the scraping structures are symmetrically arranged between the upper fixing structure and the lower fixing structures; the upper fixing structure and the lower fixing structure are connected through the adjusting structure; when the adjusting structure is loosened, the scraping structures are in a shrunk state, and when the adjusting structure is locked, the scraping structures are in an opened state. The adjustable lumbar scraping spoon is simple in structure and smartin design, in the scraping process, the scraping structure of the adjustable lumbar scraping spoon can be adjusted, the contact area between the scraping structures and the intervertebral disc and / orthe vertebral body cartilage end plate is increased, the single time tissue scraping amount is increased, the scraping spoon is very suitable for scraping the lumbar nucleus pulposus and the cartilage end plate in a small incision or a minimally invasive channel, and the requirement for minimally invasive operation use is met.

Description

technical field [0001] The invention relates to an adjustable intervertebral curette, which belongs to the technical field of orthopedic surgical instruments of medical instruments. Background technique [0002] At present, intervertebral disc removal and / or spinal fusion techniques have achieved good results in the treatment of neck and back pain and instability of the cervical and lumbar spine, and are routine procedures for the treatment of degenerative disc disease, spondylolisthesis, and segmental instability of the spine. In recent years, intervertebral disc removal and intervertebral fusion device implantation are being widely carried out, and they have achieved a high clinical satisfaction rate. Intervertebral disc removal and / or intervertebral fusion cage implantation are developing rapidly, but the update and development of corresponding surgical instruments are obviously lagging behind, making some minimally invasive operations time-consuming or inconvenient to op...

AI Technical Summary

Problems solved by technology

In recent years, intervertebral disc removal and intervertebral fusion device implantation are being widely carried out, and they have achieved a high clinical satisfaction rate. Intervertebral disc removal and / or intervertebral fusion cage implantation are developing rapidly, but the update and development of corresponding surgical instruments are obviously lagging behind, making some minimally invasive operations time-consuming or inconvenient to operate, such as the existing intervertebral foramen The opening of the front end of the nucleus pulposus forceps for taking intervertebral disc tissue under the microscope is too small, and it needs to be repeated many times when taking the residual nucleus pulposus of the intervertebral disc, and it is difficult to remove it cleanly. When scraping the plate, because most of the existing operating instruments are fixed structures, the curette structure at the head end cannot be enlarged and adjusted in a large range after passing through a small incision or channel, so that after the curette structure at the head end enters the intervertebral space Perform extensive curettage of the disc or cartilage endplate

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