Kraken is a zero-gravity leg prosthesis conceived for letting people with a single or a double leg deficiency below the knee live well inside the ISS.

Space environments could imply movement and standing still disease for astronauts with this kind of deficiency. Therefore, Kraken has been designed to overcome both of those two.

Comfort is the aspect that most requires to be ensured.

For that reason, the prosthesis has been thought to be 3D printed in TPU, a material that makes our device soft and flexible. It is then known that prostheses must be developed time after time according to the different needs that each amputated leg requires. So, two adjustable closures have been settled to guarantee the best fitting both on the thigh and at the end of the cut part of the leg.

Besides this, the hurting contact between the prosthesis and the cut body part has always been the most critical aspect in designing artificial arms. But now it can be finally put aside.

Thanks to the zero-gravity, the cut limb will be left free from any pressures or restrictions by the prosthesis cage in which the stump is enveloped.

The movement deal has been addressed by filling the length gap among legs through the prosthesis itself. This allows disabled people to get help from ISS walls by touching them as astronauts are used to do.

Because the lack of an arm is not always considered a deficiency in space, this prosthetic proposal can be compressed and locked thanks to a pin settled below the leg cage and on the top side of the final ball. Both the closure and the unlocking will be easily ensured by pushing the two halves one into the other and letting one of them turn ninety degrees.

Meanwhile, the standing still issue comes from the fact that astronauts are used to hooking their feet under the blue handlebars that are settled all around the ISS. To exploit the still existing equipment, the problem has been addressed by adding a softball at the end of the prosthesis.

On the bottom of the ball, it has been then added a particular material that replicates the gecko's feet which will allow astronauts to attach and detach themselves without difficulties or carrying in any sudden movements.
So, when the ball lands on the hand drill it deforms following the underneath surface and leading to the attachment of the entire sticky part.