一种用于尺骨鹰嘴骨折的张力带克氏针导向组件

By using a tension band Kirschner wire guide assembly in olecranon fracture surgery, the insertion point and angle of the Kirschner wire can be precisely adjusted, solving the problem of Kirschner wire penetration into the joint cavity and improving the safety and reliability of the surgery.

CN120304911BActive Publication Date: 2026-07-17CHENGDU MILITARY GENERAL HOSPITAL OF PLA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU MILITARY GENERAL HOSPITAL OF PLA
Filing Date
2025-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During tension band fixation of olecranon fractures, medical staff often struggle to accurately control the insertion point and angle of the Kirschner wire, which can easily lead to the Kirschner wire penetrating the joint cavity, causing cartilage damage and increasing the risk of postoperative arthritis.

Method used

A tension band Kirschner wire guide assembly was designed, including an adhesive plate that fits onto the dorsal side of the olecranon process of the ulna, an angle adjustment mechanism and a guide cylinder, and components such as transmission gears, worm gears and knobs to precisely adjust the entry point and angle of the Kirschner wire. A protractor is provided to monitor the angle in real time to ensure that the Kirschner wire is drilled within a safe range.

Benefits of technology

It enables precise control over the insertion point and angle of the Kirschner wire, avoiding the risk of the Kirschner wire penetrating the joint cavity, reducing the risk of cartilage damage and postoperative arthritis, and improving the safety and reliability of the surgery.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及骨科器械技术领域,具体涉及一种用于尺骨鹰嘴骨折的张力带克氏针导向组件。包括能贴合在尺骨鹰嘴突背侧的贴合板,贴合板的弧面上安装有角度调节机构,角度调节机构上安装有两根平行的导向筒,角度调节机构能够调节导向筒与尺骨鹰嘴突背侧切线的角度大小。角度调节机构包括固定板、驱动装置和两个相同的传动齿轮;两个传动齿轮的轴心处均与固定板转动连接,两个传动齿轮相互啮合,其中一个传动齿轮的转轴两端分别与两个导向筒的外侧壁固定连接,另一个传动齿轮与驱动装置啮合;贴合板位于导向筒处开有两条平行的通槽。该导向组件能够精确控制克氏针在尺骨鹰嘴的进针点和进针角度,能够避免克氏针穿透关节腔的风险。
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