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Recently, the Fraunhofer Institute in Germany and the Otto Bock Orthopaedic Company have jointly developed a new type of sensor, and its test results are expected to enable technicians to create more ergonomic prostheses, making this product more "useful". intimate".
It is reported that the sensor is shaped like a cube with a side length of about 4 cm, which can be mounted above the ankle or knee and simultaneously detect the pressure in the three-dimensional space. The sensor also features eight test bridges, each with four extendable measurement strips. These measuring tapes consist of an insulating layer and a metal film covered by its surface. When a disabled person with a prosthesis walks, the insulating layer can be stretched according to the type of motion, thereby changing the resistance data of the metal film. After all the above 32 extended measuring tapes are installed in different parts of the human body, the movement of the human limbs in all directions can be simultaneously monitored to provide a complete condition of the prosthetic force. A small data logger is also installed near the sensor, which works in conjunction with the sensor to provide 24 hours of uninterrupted monitoring of the prosthetic force. Experts involved in this research and development said that after installing these devices on the prosthesis, the researcher can adjust and improve the product according to the characteristics of the prosthesis of the disabled when walking, so that the disabled using the prosthesis can move more freely. .
Prosthetics, also known as "prosthetic limbs", are artificial limbs used by amputees to compensate for the function of missing limbs. There are upper limb prostheses and lower limb prostheses. Made of aluminum, wood, leather, plastic, etc., the joints are made of metal parts. Shanghai Medical Device Industry Association
Germany develops new technology to make prosthetics more "intimate"