Wearable U-shaped limb power-assisted airbag and manufacturing method thereof

Abstract

The invention provides a wearable U-shaped limb power-assisted airbag and a manufacturing method thereof, belonging to the technical field of robots for the disabled and the elderly. The U-shaped limb power-assisted airbag is worn on a human joint, supplies assistance to the human joint through controlling the air pressure in the airbag, and is applicable to a patient who difficultly moves resulting from muscle weakness. The U-shaped airbag comprises a plastic U-shaped airbag body, an airbag fixing strap and an air nozzle and is made by a heat-seal connection technology. The wearable U-shaped limb power-assisted airbag is fixed by threading an elastic band through a fixing sleeve and a magic tape sewn on clothes while wearing. When the wearable U-shaped limb power-assisted airbag is worn in different parts, pneumatic assistance of six actions, namely flexion / extension of shoulder joints, expansion / contraction of shoulder joints, flexion / extension of elbow joints, inward rotation / outward rotation of elbow joints, flexion / extension of knee joints and flexion / extension of the waist in total can be realized.

Description

technical field [0001] The invention belongs to the technical field of robots for helping the elderly and the disabled. It wears a U-shaped limb booster airbag on the joints of the human body (elbow joints, shoulder joints, waist, knee joints), and provides assistance to the human body joints by adjusting the air pressure in the airbag. It is suitable for Patients (mostly elderly) who have difficulty moving due to muscle weakness. Background technique [0002] At present, in the field of robot technology for helping the elderly and the disabled, the technical solutions for providing assistance to human limbs mainly include electric systems and pneumatic systems. Among them, the electric system is difficult to be commercialized because it is difficult to overcome many shortcomings such as complex mechanism, long mechanical transmission chain, difficult control of output force, and poor safety. As for the pneumatic system, although the structure is simple and the safety is go...

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Problems solved by technology

Among them, the electric system is difficult to be commercialized because it is difficult to overcome many shortcomings such as complex mechanism, long mechanical transmission chain, difficult control of output force, and poor safety.

As for the pneumatic system, although the structure is simple and the safety is good, the industrial aluminum cylinder is cold and rigid, so it is not suitable for wearing on the human body.

Recently, there are also studies on the use of anisotropic materials to manufacture soft bending cylinders, but the manufacturing process is complicated, the cost of anisotropic materials is high, and the bending angle of the cylinder is not large enough to meet the requirements of use.

In addition, there are some reports of using wearable airbags to make protective clothing, but they can only be used as inflatable protection and cannot be used to assist human limbs

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