Abstract
Cervical disease is a common clinical disease . Cervical disease is the most essential factor is the growth of age to the natural aging disc. With the quickening pace of life, working long hours at his desk and the use of computers, driving, with high pillow, soft bed to sleep and many other factors keep people a long time maintaining a single position and muscle fatigueing ligament, which accelerated incidence of cervical disease. Meanwhile, changes in diet and weight gain will also promote disease. According to some experts, admissions for cervical disease in their patients more than half of them were under the age of 40, and there are many young people in their prime, the youngest only two years old.
This paper analyzes the status of domestic and foreign medical device research, to the design of cervical traction device, we introduced the main issues during the design process, including functional theory, the structure of the layout , tractor parts classification and coding, tractor parts standardization and design layout design, shape size calculation, tractor part with the relationship between tolerance and surface roughness, dimensions, materials selection, and traction devices.
This paper consider the feasibility of such factorse, material selection, mechanical analysis, practical value, safety, and tractor manufacturing process , of course it will be worthy of the actual production and processing instructive.
