Femoral neck fracture percutaneous operation auxiliary device and using method thereof

Abstract

The invention discloses a femoral neck fracture percutaneous operation auxiliary device. The device comprises a puncture needle, a first module and a second module; the first module is a straight parallelepiped; a smaller included angle formed between the front surface and the side surface of the first module is 45-55 degrees; the first module is provided with a guide channel starting from the center of the front face in a direction parallel to the side face and the bottom face; the first module is also provided with a plurality of secondary guide channels; a plurality of the secondary guide channels are symmetrically distributed on the two sides of the guide channel in an even number; the inlet holes, on the front surface of the first module, of the secondary guide channels and the inlethole, on the front surface of the first module, of the guide channel are staggered; a plurality of the secondary guide channels are obliquely arranged relative to the guide channel; and the outlet holes, on the back surface of the first module, of the secondary guide channels are close to the outlet hole, on the back surface of the first module, of the guide channel. According to the invention, the puncture needle, the first module and the second module are used in cooperation, the position and angle of a hollow needle can be adjusted conveniently before percutaneous implantation, and the accuracy and stability of the hollow needle during the percutaneous implantation can be improved.

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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