According to the big data query of Tianyancha, Dr. Ji applied for registration number: 52455927,2021-08-21and registered successfully. Dr. Ji's walking shoes have obtained two patents, one is the design patent and the other is the utility model patent. Dr. Spine's walking shoes have a unique appearance, conform to the principles of ergonomics, can effectively reduce the pressure on the feet when walking, and have good anti-skid performance. The utility model patent proves that this kind of walking shoe improves the design of existing products and has the above special functions and advantages.