Ottobock 4R220 Instrucciones De Uso página 27

18) Tie off the woven carbon fibre stockinette tightly in the distal groove of
the cylinder body.
19) Tie off the woven carbon fibre stockinette tightly in the undercut of the
cylinder body using perlon string.
20) Expose the valve dummy.
21) Pull a nylon stockinette over the plaster model.
Prosthetic socket with carbon finish
1) Cut a piece of carbon UD stockinette (twice the length of the plaster
model).
2) Pull the carbon UD stockinette over the plaster model up to the edge.
3) Tie off the excess carbon UD stockinette at the distal end and fold it over
the plaster model.
4) Pull a nylon stockinette over the plaster model.
5) Soak the longer PVA bag and pull it over the plaster model.
6) Perform the casting process with Orthocryl. Approx. 30 % more Ortho­
cryl is required due to the 6 layers of perlon stockinette.
7) Once the lamination resin is sufficiently distributed: displace excess
lamination resin in the area of the cylinder body to the distal end by
wrapping with polyethylene adhesive tape. Wrap tightly so the system
becomes airtight.
8) Allow lamination resin to cure.
9) Finish the prosthetic socket (see Page 28).
Prosthetic socket without carbon finish
1) Cut a piece of carbon UD stockinette (1.5 times the length of the plaster
model).
2) Pull the carbon UD stockinette over the distal half of the plaster model
(see fig. 21).
3) Tie off the excess carbon UD stockinette at the distal end and fold it over
the plaster model (see fig. 22).
4) Tie off the carbon UD stockinette in the undercut of the cylinder body
(see fig. 23).
5) Cut a piece of perlon stockinette (twice the length of the plaster model).
6) Pull the perlon stockinette over the plaster model to the edge. Tie off the
second half of the perlon stockinette and fold it over the plaster model
(see fig. 24).
7) Soak the longer PVA bag and pull it over the plaster model (see fig. 25).
8) Perform the casting process with Orthocryl. Approx. 30 % more Ortho­
cryl is required due to the 6 layers of perlon stockinette.
27