Rotary external guiding and internal fixing configuration configuring device for femoral head and neck

Abstract

The invention discloses a rotary external guiding and internal fixing configuration configuring device for the femoral head and neck. The configuring device comprises a guide sleeve (1), a rotating sliding block (2), a connecting guide rail (3), a locking nut (4), an installing plate (5) and an indicator pointer (6). A guide needle hole (11) is formed in the center of the guide sleeve (1), a hollow groove (22) is formed in the rotating sliding block (2), the connecting guide rail (3) comprises an arc part (31) and a plane part (32) connected with the arc part (31), the included angle beta between the chord of the arc part (31) and the plane where the plane part (32) is located is 110-140 degrees, a long-striped slotted hole (33) is formed in the arc part (31), and the plane part (32) and the installing plate (5) are fixedly connected. In cooperation with the imaging technology, the configuring device can effectively improve the accuracy of positioning a guide needle in a femoral head and neck operation, and the position of the guide needle can be checked and located noninvasively.

Description

technical field [0001] The invention belongs to orthopedic medical equipment, which is an auxiliary positioning equipment. Background technique [0002] At present, in femoral neck fracture internal fixation and femoral head necrosis modified decompression and fibula transplantation, the positioning guide pin is placed under the guidance of the C-arm X-ray machine, and the positioning guide pin is held by the doctor without a fixed position. The accuracy, safety and effectiveness of instruments and operations are low, and it is difficult to obtain the ideal biomechanical configuration in the narrow geometric space of the femoral neck; It will further damage the remaining normal bone structure of the femoral head and neck, causing unnecessary iatrogenic damage. In addition, the repeated use of X-ray machines to display images exposes patients and doctors to ionizing radiation, which is also harmful to a certain extent. Contents of the invention [0003] The object of the ...

AI Technical Summary

Problems solved by technology

[0002] At present, in femoral neck fracture internal fixation and femoral head necrosis modified decompression and fibula transplantation, the positioning guide pin is placed under the guidance of the C-arm X-ray machine, and the positioning guide pin is held by the doctor without a fixed position. The accuracy, safety and effectiveness of instruments and operations are low, and it is difficult to obtain the ideal biomechanical configuration in the narrow geometric space of the femoral neck; It will further damage the remaining normal bone structure of the femoral head and neck, causing unnecessary iatrogenic damage

In addition, the repeated use of X-ray machines to display images exposes patients and doctors to ionizing radiation, which is also harmful to a certain extent.

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