A bone drill capable of directional drilling of bone on the articular process

Abstract

The invention relates to a bone drill capable of directionally drilling bone on an articular process. The bone drill structurally comprises a directional guide bar and a bone grinding drill. The side wall of the directional guide bar is provided with an axial eccentric through groove, the inner groove face of the eccentric through groove is an equal-diameter arc face, and an axial wire guide threading hole penetrating through the bar body is formed in the directional guide bar. The bone grinding drill is provided with a threaded drill bit at the front end of a drill pipe. The length of the drill pipe is larger than that of the directional guide bar. The diameter of the drill pipe is slightly smaller than that of the eccentric through groove. When the drill pipe is placed in the eccentric through groove of the directional guide bar, the edge of the threaded drill bit at the front end protrudes out of the groove edge of the eccentric through groove. By means of the bone drill, the operative route direction can be accurately positioned, on the premise that safety and stability are achieved, bone blocking the operative route direction is accurately ground, the grinding range is enlarged by rotating the directional guide bar in the bone grinding process, an accurate and wide implant space is provided for a work sleeve, and an enough visual angle is provided for an endoscope.

Description

technical field [0001] The invention relates to an orthopedic medical instrument, in particular to a bone drill capable of directional drilling bone on the articular process. Background technique [0002] Lumbar intervertebral disc herniation is a common and frequently-occurring disease in spinal orthopedics. It is due to the degeneration of the intervertebral disc, the rupture of the annulus fibrosus, and the protrusion of the nucleus pulposus to the spinal canal, which stimulates and compresses nerve roots, blood vessels or spinal cord. Symptoms such as numbness. Patients often suffer from severe pain and cannot walk, which seriously affects their life. Traditional surgical treatment involves large trauma, heavy bleeding, slow postoperative recovery, and there are adverse reactions such as long-term postoperative waist discomfort and high recurrence rate. With the popularization of minimally invasive concept, intervertebral foramina mirror technology came into being. Re...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bone drill capable of directional drilling on the articular process to solve the problem that the traditional bone drill cannot remove abnormal bone under the premise of ensuring safety, thereby affecting the surgical treatment

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