Domestic Prosthetics Information | Fujian Guozi Rehabilitation Medical Application Variable Elastic Prosthetic Foot Board Patent Cracking Three Pain Points in the Industry

The latest information released by the State Intellectual Property Office shows that Fujian State-owned Rehabilitation Medical Technology Co., Ltd. (hereinafter referred to as "Fujian State-owned Rehabilitation Medical Technology Co., Ltd." "Jiangguozi Rehabilitation Medical") officially announced an invention patent application titled "A prosthetic foot plate with a variable elastic structure" on January 9, 2026. The application publication number is CN121287379A, and the application date is November 7, 2025. This patent specifically solves the industry pain points of traditional prosthetic footplates such as unadjustable elasticity, easy connection loosening, and easy wear of the internal trachea. It combines the three core advantages of elasticity adjustment, dustproofing, and easy maintenance, and provides a new technical solution for the upgrading of the rehabilitation assistive device industry.

According to the patent summary, this prosthetic foot was jointly developed by four inventors: Pan Jianwei, Cheng Chen, Yang Linsen, and Li Yanlei. The patent agency is Fuzhou Xuchen Intellectual Property Agency, and the classification numbers cover many core categories of prosthetic technology such as A61F2/66 and A61F2/60. In the product structure design, an air cushion is innovatively placed between the upper and lower foot plates, and precise inflation and deflation are achieved through a control component composed of a micro air pump, an air tank and an electric three-way valve. The internal pressure can be flexibly adjusted according to the user's needs, thereby changing the elastic stiffness of the foot plates. Whether it is daily walking, going up and down hills, or slight jumping, etc., the pressure can be adjusted to adapt to the movement state, improving the stability and naturalness of movement.

In view of the problem that prosthetic limbs are susceptible to dust invasion during use, this patent has designed an exclusive exhaust and dust-proof structure. The circular cone block at the bottom of the upper foot plate is pushed downward by the gas during exhaust to ensure smooth exhaust. When the exhaust is not performed, the tension spring will drive the circular cone block to automatically reset and seal the circular cone groove to prevent dust from entering the internal components, effectively avoiding performance degradation or malfunctions caused by dust accumulation. In terms of maintenance convenience, the product adopts a modular connection design. The installation tube and the fixed support tube are connected through fixing screws. The prosthesis docking body and the installation tube are fixed with connecting sleeves and connecting screws. Users can complete disassembly, inspection and maintenance without professional tools, which greatly reduces the cost of use and operation threshold.

Public information shows that Fujian State-owned Rehabilitation Medical was established in June 1982 with a registered capital of 32.99 million yuan. Its registered address is located at No. 50 Gaofeng South Lane, Ximen, Fuzhou City. Its industry is special equipment manufacturing. As a state-owned enterprise deeply engaged in the field of rehabilitation medical care, the company has made fruitful achievements in the field of technological innovation in recent years. As of now, it has 23 pieces of patent information, covering various types such as inventions, utility models, and designs. Since 2024 alone, the company has been awarded a total of 5 authorized patents, and another 10 patents have entered the practical review stage. The "a waterproof lightweight prosthetic foot" previously developed has been authorized for an invention patent, and the 100% domestically produced "single-axis hydraulic load-bearing knee joint" has achieved mass production. The "multi-modal movement intention AI recognition technology" jointly developed by schools and enterprises has been selected as a key technological innovation project in Fujian Province.

The patent application for a variable elastic prosthetic foot plate is another example of Fujian State-owned Rehabilitation Medical's continued focus on the main business of rehabilitation assistive devices and deepening the integration of industry, academia, research and application. As a technology-based small and medium-sized enterprise in Fujian Province, the company has continuously promoted the localization and intelligent upgrading of rehabilitation assistive devices by building an innovative mechanism for party members to take charge of projects, deeply integrating party building leadership with technological research. Industry insiders said that the implementation and promotion of this patent is expected to fill the relevant technical gaps, further improve the adaptability and practicality of my country's prosthetic products, provide better rehabilitation assistance support for the disabled group, and highlight the responsibility and responsibility of state-owned enterprises in the field of people's livelihood.