Ottobock 743A18 Instrucciones De Uso página 12

the 743Y41 Alignment Rod until the upper edge reaches approx. 5 mm
beyond the required forearm length to be achieved (Fig. 2). To make
it easier to find the stud bolt of the 743Y42=* Lamination Dummy after
the foaming process, position the stud bolt in the same direction as the
angled portion of the 743Y41 Alignment Rod. Fix the 743Y42=* Lamina-
tion Dummy with the stud bolt.
2) Pull a 99B71=* PVC Bag over the inner socket and 99B83=* Tube
Dummy (Fig. 2). Tie off the 99B71=* Bag to the vacuum tube above the
99B83=* Tube Dummy (Fig. 3). Switch on vacuum.
3) Glue on 627B5=* Neoprene Cell Rubber Tape (Fig. 4). Wrap 616T3=1
Trolene sheeting conically around the inner socket. Mix 617H12=* Pedilen
Rigid Foam and 617P21=* Pedilen Hardener thoroughly as described
in the enclosed processing instructions, and pour into the gap between
616T3=1 Trolene wrapper and model (Fig. 5). Remove 616T3=1 Trolene
wrapper once the reaction time has elapsed.
4) Cut in the cured foam part and lay open the stud bolt of the 743Y42=*
Lamination Dummy (Fig. 6). Unscrew the bolt and remove the 743Y41
Alignment Rod. Take off the foam part and grind it so that you get a
smooth transition from the 743Y42=* Lamination Dummy to the inner
socket (Fig. 7).
4.5 Fabrication of the Outer Socket
1) Cover the bore hole and stud bolt of the 743Y42=* Lamination Dummy
using 636K6 Plastilin Clay and mask with adhesive tape (Fig. 8). Apply
talcum powder to the shaped foam part. Pull a soaked 99B81 PVA Bag
over the positive model and tie off at both ends without creating wrinkles.
Switch on vacuum (Fig. 9).
2) Reinforce with 4 layers of Perlon stockinette. In order to achieve secure
force transmission between the outer socket and inner socket during high
patient activity, use 616G12 Carbon Fibre Cloth in the transition area (Fig.
10). In the area of the fixing holes, use the 507S15 Steel Washer with
hole. Pull a soaked 99B81 PVA Bag over the positive model (Fig. 11). Mix
617H19=* Orthocryl Lamination Resin and 617P37=* Hardening Pow-
der in accordance with the manufacturer's specifications. Add 617Z2=*
Resin Colour Paste as required and pour the lamination resin into bag.
3) Tie off the 99B81 PVA bag above resin level and work the lamination resin
into the reinforcement layer. Spread the lamination resin, trying to keep
12 | Ottobock 743A18