When designing, we use classic geometric figures to achieve the simple appearance of medical products. The right rounded corners enhance the softness and affinity of the product, and the appearance combines professional and rational style with minimalist style. The white shell is divided into front and rear parts, and the black handle on the top can be made of hard silicone, which optimizes the man-machine operation and makes the grip more portable. Under the premise of meeting the rear suspension function and battery replacement, centralized modeling and packaging are carried out to highlight the simple, soft and reasonable design features.