Distal femur steel plate aiming device and aiming method thereof

Abstract

The invention discloses a distal femur steel plate aiming device and an aiming method thereof. Through the rotating of a rotary handle, the distance between a femoral steel plate and an aiming frame can be adjusted through two second steel rails; during adjusting, first springs in first through groove in first screw rods can drive first sliding sleeves to slide, and second springs in second through grooves in second screw rods can drive second sliding sleeves to slide, so that the adjustment of the distance between the first screw rods and the second screw rods can be accomplished; screws usedfor fixing the femoral steel plate on a femur successively passes through the first through grooves in the first screw rods, rod grooves in center rods and the second through grooves in the second screw rods, so that the screws can fix the femoral steel plate on the femur, therefore, the distance between the aiming frame of the aiming device and the femoral steel plate can be adjusted, and operating crews can fix the position of the aiming frame during operation; and therefore, the problems in the prior art, that the distance between the femoral steel plates and aiming plates of steel plate aiming devices cannot be adjusted due to fixation and fixation on the femoral steel plates from distal ends cannot be performed, can be solved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aiming device and an aiming method for a distal femur steel plate. Background technique [0002] There are many misbehaviors in life that can cause fractures, such as: falling from a high place, vehicle impact, rolling, etc. When a femur fracture occurs, the lower limbs cannot move, and the fracture site is severely swollen, painful, and twisted or angulated If there is an open wound at the same time, the condition will be more serious and often cause the patient to go into shock. The femur is the largest bone in the body. If it is not treated in time after the fracture, it may cause massive bleeding and nerve damage in the patient. and other serious complications. [0003] Severe fractures require surgical treatment. There are different treatment methods for different degrees of injury. Fractures in the upper 1 / 3 or middle and upper 1 / 3 of the femur are usually fixed...

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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