With the advent of an aging society in the world, the prevalence of Parkinson's disease has increased year by year. There are 5.6 million Parkinson's disease patients in the world. The difficulty of writing is one of the most important problems in the daily life of Parkinson's patients, and in some occasions, such as house transfer, contract signature and other occasions that must be signed by oneself, the problem of writing difficulty is even more difficult. Smooth uses the principle that the lower the center of gravity of an object, the more stable it is. Combined with a retractable refill, it uses the transformation of gravitational potential energy when the center of gravity changes to eliminate the influence of tremor and realize smoother and smoother writing.

Country
CHINA

Year
2016

Designer
Liu Yu, Jiakai Guo, Li Fu, Heming Wang, Yumeng He