Posterior spinal minimally invasive surgery visual field establishing system

Abstract

The invention belongs to the field of medical surgical instruments, and relates to a posterior spinal minimally invasive surgery visual field establishing system. The posterior spinal minimally invasive surgery visual field establishing system comprises a dilation device, a work channel and a connecting device, wherein the dilation device comprises a dilation needle and a dilation tube; the inner diameter of the dilation tube is sequentially increased; scales are formed on the outer side of the dilation needle and the outer side of the dilation tube; the inner diameter of the work channel is matched with the outer diameter of the dilation tube; an end of the dilation tube is provided with a handheld portion; the handheld portion is provided with parallel rings; a plurality of ring-shaped projections are arranged at the upper end of the work channel; and an S-shaped connecting tube is arranged on the top of the work channel. The performance of the work channel is stable, a surgery visual field cannot be blocked during surgery, the system can bear a large force when operated, operative wounds of patients can be reduced obviously, postoperative recovery is facilitated obviously, a surgery can be carried out under the conditions of direct viewing or under the conditions that an operating microscope or a connecting endoscope is used, incisions and wounds are small, bleeding is slight, damage on stability of spines of the patients is reduced, and postoperative recovery is accelerated.

Description

technical field [0001] The invention belongs to the field of medical surgical instruments, in particular to a minimally invasive surgical field of view establishment system for posterior spinal minimally invasive surgical field of view establishment. Background technique [0002] In recent years, minimally invasive techniques in spinal surgery have made great progress and become the future direction of development. Compared with traditional spinal surgery, minimally invasive techniques have the advantages of shorter operation time, less intraoperative bleeding, less postoperative drainage, faster recovery, and better spinal stability. However, the common defect of minimally invasive treatment methods is the limitation of surgical indications. If it is not selected properly, there are problems such as poorer curative effect than traditional surgery, operation under non-direct vision, and doctors and patients passively receiving X-ray irradiation. [0003] At present, in clin...

AI Technical Summary

Problems solved by technology

However, the common defect of minimally invasive treatment methods is the limitation of surgical indications. If improper selection, there are problems such as poorer curative effect than traditional surgery, operation under non-direct vision, doctors and patients passively accept X-ray irradiation, etc.

[0003] At present, in clinical posterior spinal minimally invasive surgery, the establishment of the surgical field of vie

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