Researchers from Wrocław University of Science and Technology are finalising the development of a groundbreaking prototype bionic hand prosthesis, aimed for those who have undergone forearm amputations. This advanced device, known as BEEPP (Bionic, Ergonomic, Economic, Polish Prosthesis), utilises muscle signals from the residual limb, and then uses artificial intelligence (AI) to analyse it and facilitate precise and responsive control.
AI technology for personalised control
Led by Dr Andrzej Wołczowski, who himself is an amputee, the prosthesis development can achieve smooth movements by interpreting biosignals directly from the person using it. The integration of AI is crucial, as it enables the prosthetic hand to learn and adapt to the unique muscle movements of each patient. Additionally, the device is equipped with sensors in the fingertips that provide feedback on grip strength and object contact, enhancing the whole experience.
Feeling the world
The bionic hand weighs approximately 500 grams and is designed to accommodate both unilateral and bilateral amputations at the forearm level. Depending on the type of amputation, the shape of the residual limb and the patient’s posture, the prosthesis can be customised to ensure comfort and functionality in everyday use.
To further improve the usage of the bionic hand, the BEEPP prosthesis will incorporate vibratory devices that will make patients “feel” the objects they touch. This feature aims to bridge the sensory gap often experienced by amputees, making interactions with the world around them more intuitive.
Overcoming technical challenges
Developing the BEEPP prosthesis involved overcoming significant technical challenges, particularly in creating three key subsystems: the prosthesis interface, AI algorithms for recognising movement intentions, and the mechatronic structure of the hand.
It needed twelve experts from various fields, including computer science, mechanical engineering, and medicine, working closely together to make the device reliable and effective.
Collaboration and future testing
The project also benefited from the involvement of Ortopes, a prosthetic company that assisted in designing the prosthesis interface. As the team prepares for patient testing scheduled for the end of 2024, they are actively seeking amputees to participate in refining the device.
This testing phase is crucial for gathering real-world feedback and making necessary adjustments before the final release. The project is expected to be completed by 2025 with three participants being selected to try and test personalised prototypes.
The promise of transformation
The BEEPP bionic hand prosthesis represents a significant advancement in prosthetic technology, combining innovative design with cutting-edge AI to enhance the lives of individuals with forearm amputations.
With its focus on personalised control and sensory feedback, this project holds the promise of transforming the patients’ lives, making everyday tasks more accessible and intuitive for amputees. As the completion date approaches (2025), the anticipation for its impact on the field of prosthetics continues to grow.
Photo: Wrocław University of Technology via Facebook
Sources
- https://tvpworld.com/82661041/polish-scientists-develop-advanced-ai-powered-bionic-hand
- https://www.tvp.pl/tvp-world/kategorie/society/polish-scientists-develop-advanced-aipowered-bionic-prosthetic-hand/82661041
- https://scienceinpoland.pl/en/news/news,104732,researchers-wroclaw-develop-bionic-hand.html
- https://polanddaily24.com/bionic-hand-prosthesis-developed-at-wroclaw-university-of-science-and-technology/business-tech/46770
- https://www.polskieradio.pl/395/7786/Artykul/3432122,polish-scientists-create-bionic-hand-now-seeking-amputees-for-testing
- https://polandweekly.com/2024/11/20/bionic-hand-from-wroclaw/
