Minimally-invasive S1 sacroiliac joint screw positioning guider

Abstract

The invention discloses a minimally-invasive S1 sacroiliac joint screw positioning guider which is characterized by including a sliding guide rail (1), a first positioning rod (2), a second positioning rod (3), an anterior superior spine locating sleeve rod (11), a posterior superior iliac spine sleeve rod (12), an S1 spinous process positioning needle (14), an S1 sacroiliac screw sleeve (7), a first guide buckle (4) and a second guide buckle (5). The positioning guider is universal and easy to operate and control, positioning is achieved through constant rules between bone landmarks, the positioning guider does not change along with postures in operations, operation time is reduced, fluoroscopy times are reduced, and learning curves are reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a minimally invasive S1 sacroiliac joint screw positioning guide. Background technique [0002] In pelvic fractures, injuries involving the posterior pelvic ring are not uncommon, such as sacroiliac joint dislocations, sacral fractures, etc. Such fractures often lead to pelvic instability, and surgical treatment is indicated. For pelvic posterior ring injuries without obvious displacement or reduction, sacroiliac joint screw therapy has gradually been widely recognized clinically, and some scholars have supported the stability of this technique through biomechanical test results. [0003] In the percutaneous sacroiliac screw technique, the technique of inserting the screw through the S1 vertebra is the most commonly used technique, which is relatively safe. Due to the complex anatomical structure of the posterior pelvic ring, there are important nerve vessel...

AI Technical Summary

Problems solved by technology

However, its high equipment cost affects the important factor that it cannot be popularized in most hospitals in China.

Some scholars have also designed a series of percutaneous sacroiliac screw-guided devices, which are still difficult to popularize because they are individualized and difficult to operate.

[0005] To sum up, there is currently no simple and accurate S1 sacroiliac screw-guiding device that utilizes body surface bony landmarks for positioning, can be used for both men and women, and can be used for both left and right sides.

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