Ottobock Betasil Gebrauchsanweisung Seite 12

Storage
BetaSil in sealed cartridges can be stored at room temperature until the specified expiry date. At
a storage temperature in excess of 25°C, the material may thicken and become unusable. Stor­
age in a refrigerator is optimal, separate from unprocessed lamination resin.
5.2 Fabricating a Socket
Required tools and materials:
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617H19 Orthocryl Lamination Resin 80:20, 636K7=1 Orthocryl Putty, 616G6 Dacron Felt,
85H11 Pastasil, 623T5=* Perlon Stockinette, 616G26=150-1 Polyester Knit Fabric, 627B40
Polyethylene Adhesive Tape, 616T3 ThermoLyn® Trolene, Sandpaper, 749Z12 Sanding
Brush, 749F7 Foam Polishing Roller
1) Pull a soaked PVA bag over the plaster model (see fig. 9).
2) Pull a layer of Dacron felt over the plaster model.
3) Cut the Dacron felt approx. 30 mm shorter in the medial area (see fig. 10).
4) Pull a layer of perlon stockinette over the plaster model (see fig. 11).
5) Reinforce the medial interior of the socket with polyester knit fabric (see fig. 12).
6) Pull a second layer of perlon stockinette over the plaster model.
7) Pull a soaked PVA bag over the plaster model.
8) Complete the lamination process with Orthocryl lamination resin 80:20 (see fig. 13).
9) Model a Pastasil dummy (width: approx. 100 mm, height: approx. 40 mm to 50 mm, thickness:
according to the protuberance) (see fig. 14).
10) Process the Pastasil dummy with the socket router (see fig. 15).
11) Roughen the prosthetic socket with sandpaper (see fig. 15).
12) Reinforce the prosthetic socket according to the weight of the patient.
13) Pull on a soaked PVA bag and complete the second lamination (see fig. 16).
14) Apply Orthocryl putty to the socket edge (see fig. 17).
15) Position the lamination anchor (transfer the placement) and laminate according to its instruc­
tions for use.
16) Loosen the prosthetic socket from the plaster model without damaging the plaster model.
17) Sand down the outer wall of the prosthetic socket across the entire width in the area of the
dummy by max. 5 mm (see fig. 18).
18) Sand down the inner wall of the prosthetic socket across the entire width in the area of the
dummy by approx. 20 mm (see fig. 19).
19) Pull the dummy out of the prosthetic socket.
20) Sand the edges of the prosthetic socket with wet sanding paper.
21) Position the prosthetic socket on the plaster model.
22) Load the BetaSil cartridge with a static mixer and insert it in the dispenser (see Page 13).
23) Discharge the first drop of BetaSil onto a cloth (see fig. 20). This ensures that the compon­
ents are mixed. At the same time, the drop serves as a reference sample to assess the state of
vulcanisation.
24) Insert the static mixer to the base of the pocket from which the dummy was removed and fill
the pocket with BetaSil (see fig. 21).
25) If the cartridge needs to be changed during the filling process: Leave the static mixer in
the pocket in order to avoid air inclusions.
26) Use the polyethylene adhesive tape to attach a piece of Trolene over the outside of the pocket
so the BetaSil ends flush with the proximal socket edge (see fig. 22).
27) Remove the prosthetic socket from the plaster model after 15 to 20 minutes (see fig. 23).
28) Remove the vulcanised BetaSil casting form from the pocket (see fig. 24).
29) Sand the BetaSil casting form with the sanding brush (see fig. 25, see fig. 26).
30) Smooth the BetaSil casting form with the foam polishing roller (see fig. 27).
31) Insert the BetaSil casting form in the pocket (see fig. 28, see fig. 29).
12 | Ottobock