Ossur DIRECT SOCKET TF Gebrauchsanweisung Seite 9

Attaching the brim
1. Put the brim on the residual limb. The thick part of the brim must be on the medial side (Figure 11).
2. Position the brim 1 to 2cm (0.4" to 0.8") below the level of the perineum.
3. Use the brim tape to attach the proximal end of the brim to the silicone insulation sheet. This will prevent resin
flow under the brim (Figure 12).
If using Icelock Expulsion Valve 552, do as follows:
1. Put a piece of double-sided adhesive tape onto the back of the dummy.
2. Stick the dummy onto the silicone insulation sheet on the residual limb (Figure 13).
NOTE: If you want to use the Icelock 544 Plate Unity as an alternative, you must use the Icelock 544 Direct Socket
Adapter Plate.
Putting on the Silicone Insulation Cap
1. Use scissors to cut away silicone insulation sheet that is not necessary (Figure 14). 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 (Figure 15).
Attach the Fiber Braids with Distal Attachment
1. Fiber braids with small or medium distal attachment (Figure 16):
– Position the injection channel anteriorly (1 o'clock).This will improve resin flow.
Fiber braids with large distal attachment:
– The orientation of the attachment offset will determine injection channel position. If the injection channel
not positioned anteriorly, pay more attention to distributing the resin evenly.
2. Turn the distal attachment nut onto the distal attachment pin and tighten nut firmly by hand.
NOTE: Make sure no fiber braids are caught between the residual limb and the distal connector.
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 a cutting line 25mm above the expected trimline (Figure 17).
6. Remove the fiber braids with distal attachment.
7. Cut the fiber braids along the cutting line with scissors. Do not cut along expected trimline!
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 (Figure 18).
NOTE: 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 (Figure 19).
NOTE: When using small distal attachment, do not apply the large O-ring.
2. Take the small O-ring and put it into the groove on the taping ring (Figure 20).
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 (Figure 21).
NOTE: When using small distal attachment, do not tape above the distal connector.
NOTE: 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 (Figure 22).
5. Place the Air Escape Tube at the proximal end laterally between the first and second layer of silicone insulation
sheet. (Figure 23). This will allow air to escape during resin injection. Both layers of silicone insulation sheet
must fully cover the residuum and fiber braids.
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