Our project consist in the development of a myoelectric prosthesis for upper limb in order to replace the missing limb or another common prosthesis like the hook prosthesis.
¿How does it work?
When an amputee tries to move his missing limb, the remains of the muscles are still activated, emitting electrical signals. By measuring this signals, we are able to translate them to different positions and grips on the prosthetic. The arm has a set of around 5 pre programmed postures, aimed to solve everyday situations. Other positions can be included if they are needed.
The hand we are developing is going to have independent movement on all five fingers, which allows us to cover a wide variety of situations where certain positions are required. The user can change the grip type by producing certain patterns with his muscles.
The prosthetic counts with a sensorial systems which allows the user to regain the feel of touch on his lost limb. Sensors were included on strategic points on the hand, giving to the user the location and intensity of the forces applied on the prosthesis.
At last, a tag based personalization systems was included. The tags work with RFID technology, in other words, they act as identifiers for the objects there are put on. When the prosthetic approaches said object, it will automatically adopt the position required to interact with it. This postures can be defined directly by the user specifically for each RFID sticker.