A percutaneous surgical auxiliary device for femoral neck fracture and its use method

Abstract

The invention discloses an auxiliary device for percutaneous operation of femoral neck fracture, which comprises a puncture needle, a first module and a second module. The included angle is 45°-55°. The first module has a guideway from the center of the front along the direction parallel to the side and the bottom surface. There are also several secondary guideways on the first module. The numbers are symmetrically distributed on both sides of the guideway, and the inlets of the guideways on the front of the first module and the inlets of the guideway on the front of the first module are arranged in dislocations, and the several guideways are all opposite to the guideway. Arranged obliquely, the outlets of the several guideways on the back of the first module are close to the outlets of the guideways on the back of the first module. The present invention facilitates the adjustment of the position and angle of the hollow nail before percutaneous implantation through the cooperation of the puncture needle, the first module and the second module, so that the accuracy and stability of the hollow nail can be improved during percutaneous implantation.

Description

technical field [0001] The invention relates to the technical field of percutaneous surgical instruments for femoral neck fractures, in particular to a percutaneous surgical auxiliary device for femoral neck fractures. Background technique [0002] Femoral neck fracture is a common type of hip fracture. The main treatment method currently is internal fixation with hollow nails. This treatment requires three hollow nails to be accurately implanted in the ideal position in the shape of an inverted "pin". In order to achieve an accurate implantation position, it is necessary to visually measure the angle and distance of the surgical instrument relative to the path of the surgical object in the frontal and lateral X-ray images, and the doctor manually adjusts the surgical instrument so that it coincides with the ideal surgical path to complete the surgical positioning. [0003] At present, the existing surgical technique is to place a guide wire at a suitable position in the fem...

AI Technical Summary

Problems solved by technology

However, this guide plate does not involve the accurate positioning of the needle entry point, and the angle of the oblique guide hole (forward angle) in the lateral position is fixed at 15°, and the lateral needle entry angle cannot be adjusted.

The anteversion angle is only the angle of the axis of the femoral neck relative to the plane of the femoral shaft. Often, the angle between the femoral neck axis and the horizontal plane is not fixed due to the different placement of the lower limbs. Therefore, the fixed angle cannot meet the surgical needs.

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