Ossur DIRECT SOCKET TF Gebrauchsanweisung Seite 8

Preparation
Relief Pads
Localize bony prominences that require pressure relief. If required, select the appropriate relief pad(s) and place on
the residual limb.
NOTE: Too many relief pads or relief pads put on top of each other should be avoided, to prevent cracks in the
silicone liner and a bad socket fit. The relief pads are for single use.
Patient Position During Socket Casting
• Patients with bad muscle response must lie on their back during socket casting (Figure 2).
• Patients with good muscle response must lie on their side during socket casting (Figure 2).
Attaching the Injection Valve
Turn the injection valve into the injection channel. An arrow on the distal connector shows you the injection
channel (Figure 3).
WARNING: Make sure you attach the injection valve correctly. If the injection valve is not in the injection channel,
the resin will erupt when you inject it. Resin eruption can cause safety risks.
Taping Ring
Use the screws to attach the taping ring to the distal connector (Figure 4).
Liner for Casting
1. Determine the correct size. Measure the circumference of the residual limb at 4 cm from the distal end.
2. Choose the device size which corresponds to the measurement, or the one which is immediately below. Example:
If the residual limb measures 24,5 cm at the indicated location, choose liner size 23,5 instead of size 25.
3. Roll on the liner used for casting (Figure 5).
4. Use the lanyard cord to examine soft tissue stabilization (Figure 6). If you are not sure, try a casting liner one
size above or below.
WARNING: The casting liner must be cleaned and disinfected before each use. See Casting Liner section below.
NOTE: A wrong liner size can lead to an uncomfortable socket. If you make an uncomfortable socket, you will have
to make a new socket.
Distal Attachment Pin
1. Turn the distal attachment pin into the casting liner umbrella.
2. Make sure the pin and umbrella are correctly aligned with the patient's limb.
Using the Plastic Protection Sheet
You need to put some of the plastic protection sheet under the liner to protect the patient. Do as follows:
1. Make a hole in the middle of the plastic protection sheet.
2. Roll 1/3 of the liner down.
3. Pull the plastic protection sheet up over the residual limb (Figure 7).
4. Roll the liner up over the plastic protection sheet.
Silicone Insulation Sheet, First Layer
1. Pull the first length of silicone insulation sheet over the casting liner (Figure 8).
NOTE: The textile layer must be on the inner side. If it is not on the inner side, you will laminate the socket to
the silicone insulation sheet.
2. Make sure to pull the silicone insulation sheet over the plastic protection sheet (Figure 9).
3. Use the sheet straps to keep the silicone insulation sheet in position during socket production (Figure 10).
8