An adjustable sternum pull hook

Abstract

The invention discloses an adjustable sternum hook, which comprises a first fixing plate and a second fixing plate, the lower surfaces of the first fixing plate and the second fixing plate are fixedly connected with pulling hooks, and the second fixing plate The left side of the plate is fixedly connected with two rack plates, the right side of the first fixed plate is provided with a slot for inserting the rack plate, and the inner wall of the second fixed plate is connected with two rotating shafts for limit rotation, The shaft arms of the two rotating shafts are fixedly connected with gears, and the two gears are meshed with the two rack plates respectively. The inner wall of the first fixed plate is slidingly connected with two sliding plates. Two first compression springs are fixedly connected to the opposite sides of the sliding plate, and the opposite ends of the two first compression springs are fixedly connected to the inner wall of the first fixing plate. The present invention realizes the effect of adjusting and fixing the distance between the two draw hooks through the cooperation of the above structures.

Description

technical field [0001] The invention relates to the technical field of sternum hooks, in particular to an adjustable sternum hook. Background technique [0002] The sternum is located in the middle of the anterior chest wall. It is a flat bone with a wide upper part and a narrower lower part. The manubrium of the sternum is wide at the top and narrow at the bottom. The jugular notch is slightly concave in the middle. There are clavicular notches connecting with the clavicle on both sides, and it is jointed with the clavicle. The lateral edge of the manubrium is connected to the first costal cartilage. The body of the sternum is flat and long, rectangular, with notches connecting the 2nd to 7th costal cartilages on both sides. The xiphoid process is the protruding part of the lower end of the sternal body, flat and thin, triangular in shape, the bottom is connected with the sternal body, and the lower end is free. The shape of the xiphoid process is changeable, and it is lo...

AI Technical Summary

Problems solved by technology

[0003] However, the current sternal closure fixation device cuts the sternum and fixes it with a steel wire or a small number of sternal fixers. Fixing with a steel wire is not only difficult for doctors to operate, but also the steel wire and the sternum often rub against the sternum after fixation, which will affect the closure of the sternum. The current sternal fixation device Nuts and bolts are used to fix and control the overall length, which is not only inefficient to operate, but also has poor fixation, which affects the recovery of the sternum

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