The inside is the limb.
A socket's cavity is the rectified limb, exactly. The studio builds the inside from your scan and your rectification, and shapes only the outside.
A trimline with wings.
The line on the socket is its rim, measured. The studio's house trimline is a supracondylar cut like this one, measured off one of our production sockets and stored as 72 numbers, scaled to your patient by a single depth. Lay it on, move its points, draw your own, or cut flat.
- points in the template
- 72
- popliteal cut below the wings
- 92.1mm
Every millimetre of wall, measured.
This socket was asked for a 4 mm wall, 6 mm at the distal end. The studio casts rays through the shell and reads the wall where it is, not where it was meant to be. The colours are that ray, cast from every point of the surface.
- 5th percentile
- 3.98mm
- median
- 5.13mm
- rays per socket
- 2,000
A block to bolt to.
The distal end is solid: a plate with rounded corners that widens as it rises and turns round, a pocket for a steel insert at each corner, and a hole in the centre. Measured on this socket.
- plate
- 70.1mm
- pockets on a square of
- 36mm
- pocket depth
- 12mm
Four steel inserts.
A stainless steel insert screws into each pocket: M12 on the outside, where it grips the printed wall, M6 on the inside, where the adapter's screws go. The screws thread into steel, never into the print.
- outside
- M12
- inside
- M6
The adapter sits on the plate.
A four-hole adapter sits flat on the plate, its holes over the inserts. Its pyramid is where the rest of the prosthesis joins, the pylon and then the foot, and where the alignment is set.
Four M6 screws, stainless.
Each screw goes through the adapter into an insert's M6 thread. Tightened, the socket and the adapter are one part.
- screws
- 4 × M6
Closed, and counted.
Watertight, one body, and exactly five holes through it: four for the bolts and one in the centre. The studio checks every socket it builds the same way, and puts what it found in the report.
- body
- 1
- holes through it
- 5
- triangles on this page
- 50,000
Printed in a material we developed.
Our definitive sockets are printed in a foamed carbon-fibre polyamide that we developed in our own print process, with metal inserts where the bolts go.
- lower density than the solid polymer
- ≈23%
