Smart prosthesis for greater safety in everyday life : Date:
Walking safely and comfortably is often a daily challenge for people who have had a below-knee amputation. This is where the new iProt project comes in, launched by the Department of Computer Science and Automation at the OWL University of Applied Sciences and Arts (TH OWL). The aim is to develop a smart lower-leg prosthesis that recognises movements, adapts dynamically, and actively supports its wearers whilst walking.
In the teaching and research group for Optical Engineering and at the iFE (Institut für Energieforschung) at the TH OWL, researchers work on a prosthetic system that combines modern sensor technology with exoskeleton-based technologies. Unlike traditional, static systems, iProt is designed not only to react but to work proactively: recognising gait patterns, measuring loads, and adjusting support according to the situation. Thus, it ensures greater safety, stability, and energy efficiency in everyday life.
Conventional prostheses are often characterised by standardised components. However, individual fitting remains crucial, particularly of the socket. Even the slightest deviations can cause pressure points, pain, or instability when walking. It is precisely this issue that iProt addresses: the system is designed to continuously monitor loads and adjust its support accordingly.
Project leader Professor Dr Oliver Stübbe contributes his expertise in 3D-printed pressure sensors. Sensors are integrated directly into components and measure pressure, temperature, and mechanical loads at sensitive points. Based on this data, intelligent algorithms automatically regulate the support provided by the exoskeleton-based system, adapting it to different gait patterns, surfaces and load situations.
The project combines scientific and industrial expertise. In addition to the TH OWL, the Fraunhofer IOSB-INA, Servicefertigung Kremser GmbH and NatStruct AG are also involved. Together, these partners are developing an adaptive prosthetic system that stabilises movement patterns, reduces wear and tear on components and, in the long term, extends their service life. “We are delighted with the successful launch of the project and the constructive dialogue with our partners,” emphasises Professor Stübbe. “The close integration of research and industry enables us to develop a novel, adaptive prosthetic system that noticeably improves the mobility for its users and their quality of life.”
The focus of the upcoming project phases will be on developing initial prototypes, conducting tests under real-world conditions, and validating the sensor technology. In the long term, the system is to be integrated into patient-centred care. iProt is funded by the Federal Ministry for Economic Affairs and Energy (BMWE).
Text source: OWL University of Applied Sciences and Arts (TH OWL)