he found the idea behind

We have been partner of a research project with the orthopedic department of the well known Fraunhofer institute, in which we compared 5 different impression techniques at the same patients: hand, vacuum supported, scanned, ultrasonic and pressure cast (the casting system was 25 years old, for sitting amputees, horizontal to use). The results have been more different than I could imagine, why I understood that every Prosthetist has their own signature in casting and modifying – but there was no standard, except the pressure casts, who are in equal shape! 

So I started to develop my own casting system, that works always in the same process. I included the vertical way, that enables the amputee to stand and load his weight while the casting process. I saw, that the pressure distribution depends on flexibility and length of the inner diaphragm and after several tests I found the right closed end membrane. I used the compressible material air because it displaces just tissue where it gives way at the stump (non-compressible water presses 1:1 everywhere). 

Jochen Weigel (CPO, ISPO cad I)

                         --------------------------------------------------------

Every prosthetist has their own signature, which can be recognized by the shape of the socket. It is the result of the constant search for perfection. Why not start with a good base that comes from an impression device? 

Everyone has to find their own way... 

We are happy to help >>> AirFit <<<

--------------------------------------------------------