A positioning device for percutaneous spinal minimally invasive surgery

Abstract

The invention discloses a positioner for percutaneous spinal minimally invasive surgery. The positioner includes a base and two sets of positioning components, wherein the base is composed of two half-bases that are butted together through an eccentric wheel locking mechanism; The body of the base is provided with a chute extending along the length direction, and the outer surface is provided with a first scale for measuring the length; the positioning assembly is composed of a sliding shaft, an angle quantization plate and a puncture guide rod, wherein the two sets The sliding shaft in the positioning assembly is set in the chute in the base body, and the two are fitted with an arc surface; one end of the sliding shaft is provided with a mounting groove with an opening along the axis, and the other end is provided with a sliding shaft for measuring The second scale of the rotation angle; the angle quantization plate is 90 ° fan-shaped, the fan-shaped angle quantization plate is provided with the third scale of measuring angle; the described puncture guide rod is provided with a guide hole along the axis line , the piercing guide rod traverses in the installation groove.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to an introducer for percutaneous minimally invasive treatment of spinal diseases. Background technique [0002] Low back pain and lumbago and leg pain are common clinical symptoms, most of which are caused by spinal diseases, and some severe cases require surgical treatment. Since the spine is an important physiological structure of the human body, minimally invasive or non-invasive treatment has become an ideal state pursued by spine surgeons. Minimally invasive surgery of the spine has achieved rapid development in the treatment of spinal diseases. However, due to the complex anatomical structure of the spine and the specificity of individuals, it is difficult to accurately reach the lesion area during surgery. Therefore, minimally invasive surgery of the spine has certain risks. and limitations. Therefore, if a positioning device for spinal minimally invasive surgery that can accuratel...

AI Technical Summary

Problems solved by technology

But the locator described in the above-mentioned patent application is obviously not suitable for percutaneous vertebroplasty, because it needs to pass a Kirschner wire respectively on both sides of the spinal column while performing this plastic surgery, and to avoid the two spinal nerves The Kirschner wires must each be at an angle to the base so that said retainer cannot be removed without removing one of the Kirschner wires

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