Aiming device and aiming method for distal femoral plate

Abstract

The invention discloses an aiming device and an aiming method for a distal femur steel plate. In the invention, by rotating the handle, two second rails drive the distance adjustment between the femur plate and the aiming frame. During the adjustment process, the first channel in the first screw rod The first spring in the groove drives the first sliding sleeve to slide, and the second spring in the second through groove in the second screw rod drives the second sliding sleeve to slide to complete the distance adjustment between the first screw rod and the second screw rod. The screws used to fix the femoral plate on the femur pass through the first slot on the first screw rod, the rod slot on the middle rod, and the second slot on the second screw rod in sequence, and then the screws fix the femoral plate on the femur , so that the distance between the aiming frame of the aiming device and the femoral plate can be adjusted, so that the operator can fix the position of the aiming frame during the operation, and solve the problem that the distance between the femoral plate and the aiming plate of the plate aiming device in the prior art is fixed and cannot be adjusted. Not suitable for distal femoral plate fixation.

Description

Technical field[0001]The invention relates to the technical field of medical devices, in particular to a femoral distal steel plate aiming device and an aiming method thereof.Background technique[0002]There are many improper behaviors in life that can cause fractures, such as: falling from a height, vehicle impact, rolling, etc. When a femur fracture occurs, the lower limbs cannot move, the fracture site is severely swollen, painful, and may be twisted or angled Other deformities, sometimes shortening the length of the lower limbs, if there are open wounds at the same time, the condition is more serious, and the patient often suffers shock. The femur is the largest bone in the body. If the fracture is not treated in time, it can cause hemorrhage and nerve damage. And other serious complications.[0003]Severe fractures require surgical treatment. There are different treatment methods for different injuries. The upper 1 / 3 or upper middle 1 / 3 of the femur fractures are mostly fixed with...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a distal femur plate aiming device and its aiming method to solve the following technical problems: (1) by rotating the handle, the handle drives the screw to rotate, and the screw cooperates with the screw connection block to drive the first moving The rod moves, the first moving rod moves between the two first rails through the first guide wheels on both sides, the first moving rod drives the two second cross rods to rotate through the two first cross rods, and the second cross rod Drive the second moving rod to move, the second moving rod moves between the two second rails through the second guide wheels on both sides, and then drive the distance adjustment between the femoral plate and the aiming frame through the two second rails, the adjustment process The first spring in the first channel in the first screw drives the first sliding sleeve to slide, and the second spring in the second channel in the second screw drives the second sliding sleeve to slide, completing the first screw and the second screw The distance between them is adjusted, and the screws used to fix the femoral plate on the femur are sequentially passed through the first slot on the first screw rod, the rod slot on the middle rod, and the second slot on the second screw rod, and then The screw fixes the femoral plate on the femur. Through the above structural settings, the distance between the aiming frame of the aiming device and the femoral plate can be adjusted, so that the operator can fix the position of the aiming frame during the operation, and solve the problem of the steel plate aiming device in the prior art. The distance between the femoral plate and the aiming plate is fixed and cannot be adjusted, and it is not suitable for fixing the femoral plate from the distal end; (2) Screw the first screw into the second aiming hole on the femoral plate by screwing the second screw into the In the first aiming hole on the aiming frame, the middle rod is placed between the aiming frame and the femoral plate to complete the fixation of the aiming frame and the femoral plate. Through the setting of the first screw, the middle rod and the second screw, the first The precise alignment between the aiming hole and the second aiming hole solves the technical problem that the aiming stability of the steel plate aiming device is not high in the prior art; (3) after the fixation is completed, screw the first screw and the second screw, and the second The first screw rod, the middle rod and the second screw rod are dismantled, and then the removal of the aiming frame is completed, the fastening bolt is screwed, and the fastening bolt is taken out from the positioning hole on the aiming frame, and then the telescopic rod is separated from the first rail and the second rail Remove it from inside to complete the disassembly of the telescopic rod, solving the technical problem that the steel plate aiming device in the prior art is inconvenient to store after use

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