Orthopedic traction device with adjustable included angle and self-locking function

Abstract

The invention relates to the field of medical instruments, and in particular to an orthopedic traction device with an adjustable included angle and a self-locking function. The device comprises upright post cylinders, a sleeve pipe, pulley overturning structures, a rotating shaft, elastic torsion structures, rope winding wheels, a traction pull rope and a traction bow. When in use, one end of thetraction pull rope is tied on one rope winding wheel, the other end of the traction pull rope is connected with the traction bow, and the traction bow is fixedly tied on the ankle of a patient. The hand wheel is rotated, the hand wheel drives a second worm to rotate, the second worm drives a second worm wheel to rotate, and the second worm wheel drives the rotating shaft to rotate through a secondsleeve and a torsion spring, so that the rope winding wheel rotates to adjust tightness of the traction pull rope. Through rotation of a knob, the knob drives a first worm to rotate, so that one pulley overturning structure can be rotated and adjusted around the first worm wheel by rotating the knob, and the height of a pulley can be adjusted after the pulley overturning structure is rotated andadjusted, so that the traction pull rope can control the traction bow to be adjusted to a proper traction angle at the ankle of the patient. The orthopedic traction device is simple in operation and is convenient and practical.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an orthopedic traction device with adjustable included angle and self-locking functions. Background technique [0002] Traction is a commonly used treatment method in orthopedics. It uses the weight of the suspension as the traction force and the body weight as the anti-traction force through the traction device to relieve muscle tension and strong contraction, restore fractures and dislocations, prevent and correct soft tissue contractures, and A treatment method for preoperative tissue loosening and postoperative immobilization for certain diseases. Bone traction is a very important kind of traction technology, also known as direct traction, which uses steel needles or traction forceps to pass through the bone, so that the traction force can directly pass through the bone and reach the injured part, and play the role of reset, fixation and rest . [0003] When the medical s...

AI Technical Summary

Problems solved by technology

[0004] First of all, it is unstable to fix the fixed pulley on the smooth-surfaced round tube-shaped cross bar simply by using the top pin. The pulley sleeve is very easy to loosen when it is turned over and positioned on the cross bar. If it is suddenly loosened, it is easy to pull the traction part of the patient and cause dislocation, which has a great hidden danger to the safety of the patient.

[0005] Second, the traction force is easy to swing from side to side during the hanging process through the weight of the natural hanging weight. During the swinging process of the weight of the weight, the traction force will fluctuate and become unstable, which will affect the traction effect, and the suspension It is easy to be touched by people walking back and forth at the end of the bed. If the collision is strong, the weight of the scale may fall off or the traction rope may fall off the fixed pulley, causing traction failure or even secondary injury to the patient. At the same time, if the weight of the scale falls off May cause damage to other people's feet

[0006] Third, every time the fixed pulley needs to be flipped on the cross bar to fix it at other angles, it is necessary to loosen the top pin first, then grasp the fixed pulley to turn it to a suitable angle, and then tighten the fixed top pin. The whole process is very cumbersome , it takes a lot of time, and the medical staff need to hold on to the fixed pulley when loosening the top pin. However, due to the heavy weight of the weight, the palm of the medical staff needs to bear the pulling force of the weight Farah when the top pin is suddenly loosened. It is easy to get out of hand, and there is also a great safety hazard for patients

[0007] Fourth, the adjustment of the traction force is achieved by increasing or decreasing the number of weights on the scales. The traction force can only be adjusted in steps, and the traction force can not be adjusted steplessly according to the patient's own needs.

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