Pneumatic control weight reduction supporting system

Abstract

The invention discloses a pneumatic control weight reduction supporting system, and belongs to the technical field of medical rehabilitation equipment. The system can control a tension value in a certain range to realize constant tension control. The system comprises a stand with pedestal, and is characterized in that the stand is provided with a first fixed pulley and a second fixed pulley, wherein the pedestal of the stand is provided with a cylinder; a piston rod of the cylinder is provided with a movable pulley; the pedestal on the two sides of the cylinder is provided with a third fixed pulley and a fourth fixed pulley respectively; a winch is arranged in a lateral direction of the fourth fixed pulley; a back strap arranged below the stand is connected with the winch through a force sensor, the first fixed pulley, the second fixed pulley, the third fixed pulley, the movable pulley and the fourth fixed pulley by a connecting rope in turn; a position sensor is arranged on the cylinder; the cylinder is connected with a pressure sensor and a pneumatic control valve respectively; the pneumatic control valve is connected with an air pump station; and the force sensor, the position sensor, the pressure sensor, the pneumatic control valve and the winch are connected with a computer respectively.

Description

technical field [0001] The invention belongs to the technical field of rehabilitation medical equipment, and in particular relates to a pneumatic control weight loss support system. Background technique [0002] At present, many countries have begun to enter the aging society. Diseases, disasters and other factors have formed a large number of disabled groups, who need a lot of rescue and medical care services. There are a large number of patients with inconvenient movement or paralysis of the lower limbs caused by spinal or brain injuries. A better method of physical rehabilitation for these patients is to carry out gait rehabilitation training. The use of a weight-reducing support system (Partial Body Weight Support, PBWS, proposed in 1986) in gait rehabilitation training can reduce the burden on the patient and achieve a more effective rehabilitation effect. In the 21st century, with the development of rehabilitation technology, weight loss support system has been more a...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing weight-reducing support systems include: ①Static weight-reducing support system. The main disadvantage of this system is that since the rope length is fixed when the object moves, the center of mass does not move up and down when the object moves, and the tension changes greatly; ②Passive The main advantage of this system is that it can make the object move up and down when it is moving. The main disadvantage of this system is that due to the inertial force when the object is moving, the tension value of the rope changes randomly, and due to the balance The weight of the block is discrete, so the tension value is discrete and cannot be adjusted to any value, but only a few constant values; ③Passive spring weight reduction support system, the main advantage of this system is that the inertial force can be ignored, the system’s The main disadvantage is that due to the use of springs, the load range is small, and the tension value of the system changes when the center of gravity of the object moves up and down

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