A retractable variable-diameter bone drill for foraminoplasty

Abstract

The invention relates to the technical field of medical instruments, in particular to a retractable variable-diameter bone drill used for intervertebral foramen formation. Including bone drill assembly, guide centering and clamping mechanism, end advancing mechanism and T-shaped handle, bone drill assembly includes inner core bone drill, reamer bone drill, guide centering and clamping mechanism includes guide base, slider, knurling The sleeve, the end hexagonal piece, and the end propelling mechanism include the propelling piece. The bone drill of the invention only needs to perform one surgical grinding on the articular process part of the diseased spinal column to complete the existing operation, which requires multiple times of grinding the diseased part with bone drills of different diameters, achieves the purpose of convenient and quick operation, and improves the Operation efficiency, reduce operation risks, reduce the radiation exposure time of doctors and patients, and also reduce the psychological pressure of doctors and patients.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a retractable variable-diameter bone drill used for intervertebral foramen formation. Background technique [0002] Cervical spinal stenosis, cervical disc herniation, lumbar disc herniation, and lumbar spinal stenosis are common spinal degenerative diseases, which have plagued patients for a long time and seriously affect their quality of life. With the advancement of minimally invasive technology, the treatment method of spinal endoscopic transforaminal approach has emerged. This treatment method has the advantages of small surgical incision, less bleeding, quick recovery, low cost, short hospital stay, and patient pain. Small advantages, which are generally accepted by patients. The surgical procedure is as follows: first, use X-ray fluoroscopy to locate the lesion on the spine, open a surgical incision, and then percutaneously insert an anesthetic puncture needle...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems, the present invention improves the existing surgical bone drill, and provides a telescopic variable-diameter bone drill for intervertebral foramen formation, which can reduce the time for grinding the intervertebral foramen and improve the efficiency of grinding the vertebral foramen. The accuracy of the inter-hole is used to solve the disadvantages of using bone drills of different diameters to grind the articular process of the lesion for many times in the existing operation, which leads to long operation time and increased operation risk.

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