Challenge: 3D Medical

3D Medical; Bringing 3D printed Limbs to the Next Level

Mechanical Engineering, Electronics Engineering, Software Engineering, Medical

The community Enabling the Future tries to engage the community to make artificial limbs for people around the world. The limbs are 3D printed and the models of the limbs are kept on a central server open to the public domain. So far, all limbs are set in motion by muscle power; the patient’s last functional joint, e.g. the wrist or the elbow is applied to activate the gripping function of the hand. This causes a coupled movement for the gripping function; when gripping, the wrist or the elbow needs to be moved. This is an unwanted situation. Gripping should be decoupled from the movement of the joint so the patient is able to position the artificial limb in place and activate the gripping function without further movement of the limb. With the reducing cost of electronics, it is the plan to build a simple but effective mechatronic system to activate the gripping function. Therefore, a sensor is placed somewhere on the body that can be controlled separately from any other movement. Gripping can be done without parasitic translation or rotation of the limb.
​For the challenge the artificial limb will be a hand (see picture). The gripping function of the hand may be controlled separately from the wrist or the elbow. Arduinos are available for delicate control of the movement and to refine the signal from the sensor. Altogether the solution contains mechanics, electronics, and software that seamlessly works together to make gripping of the artificial limb as natural as possible.

Evaluation Criteria
Originality of the solution, Quality of execution, Feasibility

Process Description
The challenge will be done in multi-disciplinary teams

Expected result​
A working prototype, able to grip a cup of coffee without spilling

A nice and unique trophy

Erik Puik

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