Massager Usability Design Based On Digital Human Hand Model Virtual Evaluation Technology

With the rapid development of economy,people's life changes a lot.Health in the proportion of people' life is also growing.When we are sick,the role of medical devices get a highlight.This article classify those operated through the combination use of human fingers,palms,wrist and arm to achieve the goals as hand-held medical devices.Due to the pursuit of profit and cost,current hand-held medical devices lack of ergonomic design.How to provide users with safe,easy to understand,good operating equipment,is an urgent problem to be solved in medical device product design,namely,the usability of medical devices.This article is based on the digital human body model technology to provide a virtual evaluation method of neck massage's usability.In the research,the author firstly researched the existing neck massager in the market,deeply understanding the physiological and psychological characteristics of the user and the problems of the existing design.Then,the digital hand model and product model are established by the use of three-dimensional digital scanning based on reverse engineering technology.On this basis,the stress analysis of the hand-held product with finite element software shows the usability problem in neck massager design.According to the result,the product design is improved,and then the design of the neck massager for another finite element analysis to verify the feasibility of its design and scientific.This article provides a good approach for the prevention and treatment of cervical spondylosis in the younger generation.It also provides theoretical and technical support for future usability evaluation.