Design and fabrication process of individualized subknead crooked by three-dimensional geometric scanning and hot flux printing

Abstract

The useful solution refers to a process for designing and fabricating personalized below-knee stump sockets using three-dimensional geometric scanning and hot melt filament extrusion printing. The process includes: acquiring geometric data of the stump; processing scanned data to create a digital model; defining load-bearing zones and pressure-reducing zones; selecting padding; designing the socket with different geometric compensation amounts for each zone; selecting parameters for holographic printing; fabricating the socket; assembling it with the prosthetic leg assembly; performing pressure testing at the stump-padding-socket interface; and calibrating the socket before use.