Ossur Direct Socket TF Gebrauchsanweisung Seite 9

3. Put the brim on the residual limb. The thick part of the brim must be on the medial side (Fig. 15).
4. Position the brim 1 to 2 cm (0.4" to 0.8") below the level of the perineum.
5. Use the brim tape to attach the brim to the silicone insulation sheet. Attach the brim to prevent resin flow
under the brim (Fig. 16).
Putting on the Silicone Insulation Cap
1. Use scissors to cut away silicone insulation sheet that is not necessary (Fig. 17). Make sure the insulation sheet
ends a small distance above the distal part of the casting liner.
2. Put the silicone insulation cap on the distal part of the casting liner (Fig. 18).
If you want to use the Icelock Expulsion Valve 552, do as follows:
3. Put a piece of double-sided adhesive tape onto the back of the dummy.
4. Stick the dummy onto the silicone insulation sheet on the residual limb (Fig. 19).
NOTE: If you want to use the Icelock 544 Plate Unity as an alternative, you must use the Icelock 544 Direct Socket
Adapter Plate.
Attach the Fiber Braids with Distal Connector
1. Turn the distal attachment nut onto the distal attachment pin. The fiber braids with distal connector are now
connected to the casting liner covered by the silicone insulation sheet.
2. Check if the distal attachment nut is almost flush with or a small distance below the distal attachment pin
(Fig. 20).
NOTE: Make sure no fiber braids are caught between the residual limb and the lamination ring.
3. Pull the first layer of fiber braids up over the silicone insulation sheet. Pull the second layer of fiber braids up
over the first layer. Repeat for all layers.
4. Check the fiber braids for folds and creases. Make the fiber braids smooth where necessary.
5. Mark the trimline on the fiber braids (Fig. 21).
6. Remove the fiber braids with distal connector.
7. Use scissors to cut along the trimline.
WARNING: Do not cut fiber braids without air extraction. Fiber particles can cause respiratory illness.
8. Assemble again. Repeat steps 1 to 4.
Silicone Insulation Sheet, Second Layer
Use the sheet applicator to roll the second length of silicone insulation sheet over the fiber braids (Fig. 22).
NOTICE: The textile layer must be on the outer side. If it is not on the outer side, you will laminate the direct socket
to the silicone insulation sheet.
O-rings
1. Take the large O-ring and put it on the top edge of the distal connector (Fig. 23).
2. Take the small O-ring and put it into the groove on the taping ring (Fig. 24).
CAUTION: Make sure there are no wrinkles and air between the O-rings. Wrinkles and air can cause the resin to
leak.
3. Tape over the O-rings to fix the second layer of silicone insulation sheet to the distal connector and the taping
ring (Fig. 25).
NOTICE: Do not tape above the proximal O-ring. Tape above the proximal O-ring can stop the resin flow. You
will not be able to cast a usable socket if the resin does not flow and saturate the fiber braids.
4. Use scissors to cut away silicone insulation sheet that is not necessary below the taping ring (Fig. 26).
CASTING
WARNING: Avoid direct contact with the resin. Wear safety glasses and gloves. Make sure the technician and
patient also wear safety glasses and gloves. Direct contact with the resin can cause temporary blindness and skin
irritation.
NOTE: Read the Material Safety Data Sheet (MSDS) before you use the resin. Refer to the MSDS in case of
emergency.
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