7
6
2. Open the app and follow the instructions in the app.
Note:
The required PIN code can be found on the device label at the back of the device (see Descriptions of
Symbols section).
In case of warnings, stop using device and troubleshoot as follows:
1. Check battery status and recharge if necessary.
2. Check if the device is hot and allow to cool down.
If this does not help, contact your healthcare professional.
The Össur Logic App can also give information on device warnings.
Supported activities
The device automatically adapts to activities such as walking, standing up and more. It has several different states
that the patient must learn to recognize and activate.
Standing State
The device is in standing state by default and it will revert to standing state if it does not recognize a movement
pattern.
The device will provide support when the patient applies weight to the prosthesis. The knee will release/swing
freely when the prosthesis is unloaded/no weight is applied to it. The patient can take small steps and turns in
a natural and physiological way.
Standing Lock
Standing lock allows standing with the knee locked in a partially flexed position.
To enter standing lock:
1. Remove weight from the prosthesis.
2. Flex the knee up to the desired position.
3. Put some weight on the device and hold in a steady position for a few seconds.
4. The knee is now in a standing locked state and full weight may be applied to it.
To exit standing lock take weight off the device, this will return the knee into standing state.
Walking on Level Ground
The device adapts to the patients walking speed and style. It will give adaptive support in stance phase and
powered extension and flexion in swing phase.
If using a cane or a crutch, the patient must take care to put weight on the knee during stance phase or the knee
will not provide support.
Sitting Down
The device automatically detects sitting down motion. The device will provide support while the patient sits down.
The patient can use this to distribute weight equally to both legs and control how fast to sit down.
To sit down, the patient should:
1. Stand in front of a chair.
2. Take most of the weight off the prosthesis momentarily.
3. Put weight back on the prosthesis.
4. Within 3 seconds, lean slightly backwards and start flexing the knee. The knee will provide support during knee
flexion until seated.
5. The patient can now take the weight off the leg to release the knee and move the knee freely while seated.
After a few seconds of sitting without moving the knee, the knee will enter standby. Standby turns off the motor to
save power.
To exit standby, flex or extend the knee slightly.
