Minimally invasive tool for shaping foramen intervertebrale

Abstract

The invention discloses a minimally invasive tool for shaping foramen intervertebrale. The minimally invasive tool comprises a sleeve, wherein a trepan pipe is arranged on the left side of the sleeve;the right end of the trepan pipe penetrates through the right side of the sleeve; annular teeth are punched to the right end of the trepan pipe; a handle is welded to the left end of the trepan pipe;first sliding grooves are formed in the top and the bottom of the inner surface of the sleeve; and a first sliding block is in sliding connection to the inner wall of each first sliding groove. According to the minimally invasive tool disclosed by the invention, through mutual cooperation of the sleeve, the trepan pipe, the annular teeth, the handle, the first sliding grooves, the first sliding blocks, an annular sliding groove, second sliding blocks, second sliding grooves, a limiting block, a limiting ring, a third sliding block, a threaded groove, an adjusting bolt, a graduation line and ameasuring rod, the problem that the cutting depth of an existing trepan cannot be accurately mastered is solved; and when the trepan is used, the cutting depth can be accurately controlled through fixing the limiting block, so that the controllability of the trepan is improved, and the safety when the trepan is used is also guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a minimally invasive tool for forming an intervertebral foramen. Background technique [0002] Medical devices refer to instruments, equipment, utensils, in vitro diagnostic reagents and calibrators, materials, and other similar or related items that are directly or indirectly used on the human body, including the required computer software. The utility is mainly obtained through physical means, not through Pharmacological, immunological or metabolic means, or although these means are involved, they only play an auxiliary role. [0003] Minimally invasive tools are needed during intervertebral disc surgery, and the trephine is one of them. However, when the existing trephine cuts soft tissues, the cutting depth is difficult to control and can only be operated by hand, which is easy to cause Mistakes can damage the nerve and spinal cord, thereby reducing the safety of use...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a minimally invasive tool for forming an intervertebral foramen, which has the advantage that the cutting depth can be precisely controlled, and solves the problem that the cutting depth of the existing ring saw cannot be accurately controlled

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