Snapform SimFit is taking prosthetic socket design to a new level

Every amputee knows that a well fitted socket it vital for achieving good mobility. But every prosthetist knows that achieving a good fit is a difficult process, as the residual limb is not designed to carry the body weight in way that a foot is.

Today it is an iterative process to create a good socket. This requires skill and a lot of input from the amputee plus some trial and error. Often the result is not perfect as the amputee suffers from pain and skin problems.

Snapform SimFit is a software solution designed to help the prosthetist achieve the excellent fit fast and consistently without the time consuming trial-and-error testing. SimFit can calculate how the forces are distributed on the residual limb. When the forces on the stump are known, it is much easier to design a socket with a shape that avoids pain and skin complications.

SimFit is built on the anatomy of the residual limb and understands, for example, how the knee is bending. This enables the software to design a socket that enhances mobility.

Input to SimFit is a 3D surface scan and the basic patient data (height, weight etc).  It is easy to implement, you just need an accurate 3D scanner such as the Peel2 or similar.

Snapform SimFit is as a design service with payment per case. There is no large upfront investment or monthly subscription fees. The digital shape can be provided enabling tradition socket manufacture via a carver. Alternatively, Snapform offers a lightweight 3D printed socket.

The core technology behind SimFit is a biomechanical model of the residual limb. The model is based on a finite element analysis (FEA) approach enabled by artificial intelligence (AI). The model can accurately predict how the stump behaves when the patient uses the prosthesis. 

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