Trial Fitting; Functional Test; Verification Of Fit - Ottobock Free Walk Instrucciones De Uso

5.2 Trial fitting

After assembly, the orthosis can be fitted and the fit and function can be checked on the patient.

5.2.1 Functional test

To verify technically correct functionality, take the foot section in one hand and the femoral section
in the other:
Free Walk mode
> The 3-phase switch is in the upper position.
► Push the orthosis ankle joint in the dorsiflexion direction and extend the orthosis knee joint.
→ The lock disengages automatically and the orthosis knee joint can be flexed.
Permanent locking
> The knee joint is set to Free Walk mode.
1) Slide the 3-phase switch to the lower position with the knee extended.
2) Push the orthosis ankle joint in the dorsiflexion direction and extend the orthosis knee joint.
→ The knee joint is permanently locked.
Free motion mode
> The knee joint is set to permanently locked mode.
1) Slide the 3-phase switch to the upper position.
2) Push the orthosis ankle joint in the dorsiflexion direction and extend the orthosis knee joint.
3) Flex the orthosis knee joint.
4) Slide the 3-phase switch to the lower position with the knee flexed.
→ The orthosis knee joint can be flexed freely at all times.
In case of problems, please contact your Ottobock Free Walk specialist.

5.2.2 Verification of fit

Checking the fit in the frontal plane
Required tools: 170W2 tool set, 170W13 aluminium clamping jaws, 170W11 frontal contour
>
bending tool
1) Check the fit of the base tube on the leg contour.
2) Mount the 170W13 aluminium clamping jaws on a vice.
3) Adapt the base tube in the vice. Use the 170W11 frontal contour bending tool for this pur­
pose.
NOTICE! Avoid crushing the base tube by excessive shaping.
Verifying the fit of the support tubes
Support tubes that have too small a diameter may result in medial pressure areas. Support tubes
with too large a diameter could obstruct sitting, especially in the thigh area.
In either case, the patient's individual wishes should be taken into account while checking the fit
of the support tubes.
Required tools: 170W13 clamping jaws, 170W12* pad holder bending tool, 170W18 bend­
>
ing iron
1) Loosen the screw on the strap guide loop with tube connection by 2 turns.
2) Push the screw in until a distinct clicking is heard. Use an Allen key to push it in.
3) Unscrew the strap guide loop with tube connection.
4) Remove the support tube. Loosen the two screws in order to do so.
5) Mount the 170W13 aluminium clamping jaws on a vice.
6) Secure the support tube. Use the 170W12* pad holder bending tool in order to do so (see
fig. 9).
7) NOTICE! Avoid crushing the support tube by excessive clamping.
8) Correct the shape of the support tubes. Use the 170W18 bending iron in order to do so.
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