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Minimally-invasive S1 sacroiliac joint screw positioning guider

A technology of screw positioning and sacroiliac joints, applied in the field of medical devices, can solve problems such as difficulty in popularization, high equipment cost, and inability to popularize, and achieve the effect of simple structure, short learning curve, and easy disinfection

Inactive Publication Date: 2014-11-05
王钢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Minimally-invasive S1 sacroiliac joint screw positioning guider

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Embodiment Construction

[0032]The present invention will be further described below in conjunction with drawings and embodiments.

[0033] Such as figure 1 and figure 2 The minimally invasive S1 sacroiliac joint screw positioning guide shown includes sliding guide rail 1, first positioning rod 2, second positioning rod 3, anterior superior iliac spine positioning sleeve rod 11, posterior superior iliac spine positioning sleeve rod 12, S1 Spinous process positioning needle 14, S1 sacroiliac screw sleeve 7, first guide buckle 4 (suitable for men) and second guide buckle 5 (suitable for women), wherein,

[0034] One end of the first positioning rod 2 and the second positioning rod 3 are cross-connected on the same side of the two ends of the sliding guide rail 1;

[0035] The described anterior superior iliac spine positioning sleeve rod 11 is arranged on the other end of the first positioning rod 2, and the described posterior superior iliac spine positioning sleeve rod 12 is arranged on the second ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 王钢卢超杨运平韦冬
Owner 王钢
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