Arc bone channel boring device for percutaneous vertebroplasty

Abstract

The invention provides an arc bone channel boring device for percutaneous vertebroplasty. The arc bone channel boring device comprises a working casing pipe (7). The arc bone channel boring device ischaracterized in that a main body (1) is arranged in the working casing pipe (7); a handle (2) is arranged at the lower end of the main body (1); a guiding part is arranged at the upper end of the main body (1); and a soft bone bur (6) which is in corresponding cooperation with the guiding part is arranged in the main body (1) in a penetrating manner. The arc bone channel boring device disclosed by the invention is simple in structure, convenient to use, and low in manufacturing cost; and the advancing direction of the soft bone bur is guided and changed by the guiding part, so that a sidewaysarc bone channel is formed in the centrum, in the bone cement injection stage, diffusion of the bone cement to a puncturing opposite side is increased, one-sided diffusion caused by past operations is avoided, the stuffing effect of the bone cement in the centrum is improved, and curative effects are improved.

Description

Technical field: [0001] The invention relates to the field of surgical instruments, in particular to an arc-shaped bone channel drilling device for percutaneous vertebroplasty. Background technique: [0002] Percutaneous vertebroplasty (PVP) refers to percutaneous puncture, injecting bone cement into the diseased vertebral body through the pedicle approach, in order to increase the strength and stability of the vertebral body, prevent collapse, and relieve pain. A minimally invasive spinal surgery technique that also restores partial height of the vertebral body to a certain extent. According to the guidelines issued by the World Society of Interventional Radiology in 2003, the indications for PVP are patients with osteoporotic vertebral compression fractures for more than two weeks, ineffective in conservative treatment, and intractable pain in the thoracolumbar back; due to benign or malignant tumors Patients with pain caused by vertebral bone destruction; patients with p...

AI Technical Summary

Problems solved by technology

[0005] However, the unilateral puncture operation has the following problems: the straight bone drill can only establish a straight channel and cannot extend to the opposite side, the bone cement diffusion may be limited to the puncture side during injection, and the distribution of bone cement in the vertebral body is uneven, resulting in postoperative pain. Ineffective or failed surgery

[0006] Although special instruments for vertebral body shaping such as made of memory metal have appeared in the prior art, the high price of memory metal makes the use cost of this instrument too high and increases medical expenses.

However, the bendable vertebral body shaper produced by Shanghai Kailitai Medical Technology Co., Ltd. has a complex overall structure and is inconvenient to operate. It is easy to break the connecting part of the bending rod when operating in the vertebral body, resulting in serious medical damage and other problems.

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