Ottobock 4R111-N Gebrauchsanweisung Seite 16

5.2 Laminating a Transtibial Socket
Required materials: 710D4 torque wrench, cap screw, 711S4*
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bending iron, 99B81 PVA bag, 623T3 Perlon stockinette, 616B1
carbon fibre cloth strap, 699B1 fibreglass roving, 616G12 carbon
fibre cloth, 616G15 carbon fibre woven hose, 617H119 Orthocryl
lamination resin 80:20 PRO
1) If the lamination anchor has a threaded connector: Fully
screw in the screwed insert.
2) Tighten the cap screw of the threaded clamping using the torque
wrench (10 Nm).
3) Pull a soaked PVA bag over the model. The PVA bag should be
sealed by heat welding at the distal end.
4) Pull two layers of Perlon stockinette over the model.
5) Place three layers of carbon fibre cloth (e.g. 15 cm x 15 cm) with
offset fibre alignment on the distal end of the model.
6) Pull two layers of Perlon stockinette over the model.
7) INFORMATION: Align an anchor arm that has been angled at
the factory in the posterior direction.
Bring the lamination anchor arms to the correct a-p and m-l posi­
tion. Never align the threaded clamping in the anterior or posteri­
or direction.
8) Place the lamination anchor at the socket end as required for
proper alignment and set.
9) Optional: Adapt the anchor arms of the lamination anchor to the
model with a bending iron.
10) Apply the lamination dummy according to the instructions in the
section "Installing the lamination dummy" (see Page 16).
11) Stabilise and fix the lamination anchor with a sealing resin/talcum
powder mixture.
12) Pull the fibreglass roving through the holes in the anchor arms
and allow it to hang in a loop. If there are no holes, allow the
fibreglass roving to hang around the anchor arms in a loop.
13) Place three layers of carbon fibre cloth (e.g. 15 cm x 15 cm) off­
set over the lamination anchor arms.
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14) Pull one layer of Perlon stockinette over the model.
15) Pull two layers of carbon fibre stockinette over the model.
16) Pull two layers of Perlon stockinette over the model and tie off
below the cap screw of the lamination anchor.
17) Pull on a soaked PVA bag.
18) Complete the lamination process with Orthocryl lamination resin.
19) After the lamination resin has cured, remove the lamination
dummy.
5.3 Installing the lamination dummy
INFORMATION
► Use the 4X46 lamination dummy when the lamination anchor is
to be used with a screwed insert.
► Use the 4X46=ST lamination dummy when the next prosthetic
component is to be screwed directly into the lamination anchor
(e. g. 4R57=ST). The lamination dummy is somewhat higher
proximally so that the prosthetic component does not contact the
laminate when fully screwed in.
Lamination anchor without threaded connector
► Set the 4X3 lamination dummy on the pyramid adapter of the lam­
ination anchor (see fig. 11).
Lamination anchor with threaded connector
1) Tighten the cap screw of the threaded clamping to a point where
the screwed insert can still be screwed in and out.
2) Unscrew the screwed insert from the lamination anchor.
3) Screw in the 4X46* lamination dummy (see fig. 12).
5.4 Installing the distal prosthetic components
Mounting of a screwed insert
The threaded connector is used for installing a connecting component
with an external thread (e.g. pyramid adapter or prosthetic knee joint).