Lower Limb Rehabilitation Robot Function Design Based On TRIZ Theory Research

With the development of the integration of information, service and intelligence, people show higher demands on their quality of life. For this reason, China is building the world’s largest medical system, in which the medical robot plays an important role. The great attention paid by different scientific research organizations from all over the world has gradually led to a much more intelligent and systematic medical field. According to the domestic research, the rehabilitation robot in China presents the following features: slow development speed, small global market share, unclear consumption target group, limited selection, poor generalized ability, insufficiency of mutual affection leading to the ignorance of patients’ mental health, and without the ability to form a scientific system and industry chain due to the excessive dependence on government and proper theory guidance, while the research of intelligent robot can be more systemic and diversified. The scientific research, production, marketing of medical robot have already formed an industrialized chain, which is less dependent on governments, accounts more market share, and can be profitable in the market so as to help scientific research.Due to the sharp demand of domestic medical market, this thesis includes studies on the functional area of sitting and lying robots for lower limb recovery form design process and theoretical methods. With physical conflict in TRIZ theory analysis and content and field analysis as the basis of scientific theory, the thesis combined with domestic intelligent robot technology, so as to prove existing design exploration. I apply the study method used in the human and robot industry designing field to support data in analyzing the initial problems in developing lower limb recovery robots. By analyzing various function areas in recovery system from aspects of robots’ physical form and function, I put focus on the study of design of the function areas.With the assistance of TRIZ physics analyzing method, I put forward the design requirements at the beginning of the process, describe and analyze physics conflicts in aspects of the ergonomic seat size, structure, comfort and space position, and provide solutions with the application of four kinds separation methods. I build a model by using object-field analyzing method to study the recovery exercise function of free arm exoskeletons rehabilitation of lower arm robots. Through the description and analysis with the combination of ergonomics analysis, I provide solution to S2.1.2 model, 1.1.2 model, S1.1.3 model and solve S5.3.2 model of 76 standard solutions, eliminate harmful model, establish a complete model method, theoretically experience the flexibility, comfort and safety of recovery robot. As a result, the designing purposes including safety, comfort, reliability are all achieved.