CyberTUM

Adnan Lukic (34), who was born without a hand on his right arm, will be competing for CyberTUM. Originally from Bosnia, Adnan has lived in Munich, Germany, for the past seven years. He has worn a prosthesis since childhood and has experimented with various models over the years. For the past four years, he has been using a myoelectric hand that he relies on daily. Adnan is passionate about improving accessibility in prosthetics and aims to achieve greater speed and expand beyond the ten functions currently available to him. “I joined the team because I want to help develop something better, something that can be used not only in rich countries,” he says. Adnan works as a software developer at an IT service company in Munich.

The prosthesis features an anthropomorphic design with five fingers and six actuators—one for each finger and one for the wrist. Two additional degrees of freedom - one in the wrist and one in the thumb - can be used passively by the pilot. The phalanges and palms were produced in-house, partially with the help of 3D printing. The fingertips are made of silicone and include tactile sensors based on a barometric sensing principle.

The students have developed six grip patterns, enabling the hand to perform the required tasks effectively. To control these patterns, myoelectric signals are collected on muscles in the. Four electrodes—two on the underside of the forearm and two on the upper side—measure the action potentials of the muscles. Depending on which muscles are tensed and activated, the artificial hand grips as desired.

To provide feedback to the pilot, information is transmitted through a vibration armband, an OLED mini-display, and LEDs in the fingertips, offering both optical and vibrotactile feedback.