Adjustable lumbar scraping spoon

Abstract

The invention relates to an adjustable intervertebral curette, which belongs to the technical field of orthopedic surgical instruments of medical instruments. The adjustable intervertebral curette consists of an adjustment structure, a scraping structure, an upper fixing structure and a lower fixing structure: a scraping structure is arranged symmetrically between the upper fixing structure and the lower fixing structure; The adjusting structure is connected to each other; when the adjusting structure is loosened, the scraping structure is in a contracted state; when the adjusting structure is locked, the scraping structure is in a stretched state. The adjustable intervertebral curette has a simple structure and an ingenious design. The scraping structure can be adjusted during the scraping process, which increases the contact area between the scraping structure and the intervertebral disc and/or vertebral cartilage endplate, and improves the single-shot treatment. The volume of tissue scraping is very suitable for scraping the intervertebral nucleus pulposus and cartilage endplate under small incisions or minimally invasive channels, meeting the needs of minimally invasive surgery.

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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