Orthopedic positioning guide pin guiding device

Abstract

The invention discloses an orthopedic positioning guide pin guiding device and effectively solves the problems that the orthopedic positioning guide pin guiding device cannot provide accurate positioning in the positioning and guiding process, manual operation occurs big errors, repeated pin penetration and fluoroscopy is harmful to the health of both doctors and patients, the existing guiding device cannot move freely and be fixed on an operating table, and the guide pins with different diameters cannot be well fixed. The orthopedic positioning guide pin guiding device comprises a vehicle body; the upper end of the vehicle body is provided with a gear box capable of sliding forwards and backwards on the upper end surface of the vehicle body; a rotatable driving gear is arranged in the gear box; a first gear, a second gear and a third gear are uniformly arranged on the left side of the driving gear; a connecting gear capable of sliding up and down is meshed between the first gear and the driving gear; a rotatable gearshift mechanism is fixedly connected above the connecting gear; and a structure is formed in which the connecting gear is meshed with the first gear, the second gear and the third gear.

Description

Technical field [0001] The invention relates to the technical field of orthopedic medical instruments, and in particular to an orthopedic positioning guide pin guiding device. Background technique [0002] As we all know, hollow screws are widely used in the fixation of fractures in other parts such as ankle joint fractures. The guide pin serves as a positioning and guiding function and is used for the fixation of the hollow screw. The positioning guide pin is placed under the guidance of the C-arm X-ray machine. The accuracy, safety and effectiveness are low, and it is difficult to obtain the ideal biomechanical configuration in a narrow geometric space. Repeated needle penetration will further damage the normal bone structure and cause unnecessary Iatrogenic damage, visual inspection and C-arm fluoroscopy or manual adjustment to complete the surgical operation, the existing defects are: strong subjectivity, large errors, each operation often requires multiple needle penetration...

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