Snapform SimFit a new innovative prosthetic fitting engine

The core of SimFit is a biomechanical model of the residual limb anatomy and the socket – enabled by artificial intelligence algorithms. The model is able to accurately predict how the stump behaves when the patient uses the prosthesis.

For years, Formula 1 and many aerospace companies have used similar tools to optimise performance; now it is used to help amputees.

Input to SimFit is a 3D surface scan and the basic patient data (height, weight etc). From this it calculates the optimal socket shape for the patient, with the aim to distribute the body weight optimally in the socket so excess stresses are avoided.

As most prosthetist will acknowledge, it is difficult to find the right shape for a socket. This is particular true in a digital workflow, as it is much harder to see the socket shape on the screen compared to holding the gypsum cast in the hand. SimFit avoids this issue altogether by calculating the shape instead of requiring the prosthetist to laborious draw it on a screen.

SimFit is particular useful for small and difficult stumps where good comfort is really hard to achieve. SimFit can help the patient avoid thick custom liners and achieve an excellent fit with a standard liner. As it has an unique ability to calculate the pressure on the skin and the loads deep inside the residual limb.

Snapform has developed SimFit with the clear aim to make it possible for every amputee on the planet to get an affordable prosthesis with an excellent socket. As every prosthetist knows, this is the heart of a good prosthesis.