Leg prostheses are devices used to restore the functions of individuals who have lost a leg or were born without a leg. Manufacturing these prosthetics is a complex process that requires advanced materials, engineering techniques, and careful consideration of individual needs. Here is general information about the manufacturing process of leg prostheses:
1. Evaluation and Planning
Level of Amputation: The design of the prosthesis varies depending on the level of amputation (e.g., below the knee, above the knee).
Purpose of Use: The user's lifestyle, activities and the performance expected from the prosthesis are determined.
Physical Evaluation: The individual's anatomical structure and prosthesis needs are evaluated by experts.
2. Taking Measurements and Molds
A personalized mold is created by taking measurements from the individual's leg. This mold is important to ensure the fit and comfort of the prosthesis.
Impressions are usually taken with plaster casts or digital scanning techniques.
3. Prosthesis Design
Design: The functional and aesthetic features of the prosthesis are determined. Modern prosthetics may use mechanical components, electronic components, and sometimes bionic technology.
Components: Components such as knee joint, foot, sheath and socket are designed. These components can be modified according to the user's needs.
4. Material Selection
Socket: Usually made of carbon fiber, silicone or plastic materials. It is important to ensure a comfortable fit for the user.
Knee and Foot: Light and durable materials (e.g. titanium, carbon fiber) are used. These materials lighten the weight of the prosthesis and increase its durability.
Coating and Cosmetics: Skin-like materials can be added to the outer surface of the prosthesis for an aesthetic appearance.
5. Production and Assembly
Socket production is done by taking a mold. Next, the knee joint and foot part are assembled.
All components are brought together and the prosthesis is tested.
6. Trial and Adjustment
The prosthesis is fitted to the user and its suitability, comfort and functionality are tested.
The prosthesis is made ready for use by making the necessary adjustments.
7. User Training and Rehabilitation
The user is trained on how to use the prosthesis correctly.
Through the physiotherapy and rehabilitation process, the user learns to walk with the prosthesis.
Leg prostheses have become increasingly sophisticated thanks to advances in technology. For example, features such as microprocessor knee joints and energy recovery feet help users achieve a more natural walking pattern. The materials and design techniques used in prosthesis production are constantly evolving to improve the individual's quality of life.