Ossur bionic power knee Reference guide

Quick Reference Card
WALKING
Start walking. The prosthetic knee provides support whenever ground contact is detected and
releases as swing initiates.
SITTING DOWN
1. Allow the knee to reach the “standing state”.
2. Place your weight on the prosthesis.
3. Lean forward slightly and push the prosthetic knee forward.
4. If you stop the sitting-down movement, the prosthetic knee locks and supports you.
To unlock, lift the prosthetic foot from the ground.
STANDING UP
1. Place your weight on the prosthesis.
2. Lean forward slightly and initiate the standing up movement while applying load to the
prosthetic knee.
EXERCISE MODE
1. Sit down.
2. Fully extend the prosthetic knee out.
3. Pull under the toe of the prosthetic foot for approx. 5 seconds while keeping the prosthetic
knee extended out.
4. The knee will indicate that it is in exercise mode by giving one beep and a vibration.
5. To exit the exercise mode, turn the knee OFF. Then ON again.
DESCENDING STAIRS OR RAMPS
1. Start with the prosthesis and transfer your weight onto it, while leaning backwards
slightly. Place half of foot onto the lower step.
2. Keep descending stairs or ramp.
KNEELING
1. Allow the prosthetic knee to reach the "standing state".
2. Place and maintain load onto the prosthesis.
3. Put your sound leg in front of the prosthesis.
4. Force the prosthesis into flexion by flexing your hip slightly. Feel how the prosthetic knee
supports you while kneeling down.
ASCENDING STAIRS OR RAMPS
1. STOP before the first step.
2. Allow the prosthetic knee to reach the “standing state”.
3. Gently lift the prosthesis o the ground. Knee unlocks. Place your foot onto the first step,
transfer your weight onto the prosthesis while extending the hip.
5. At the top of the stairs hold prosthesis on the ground shortly.
STANDING STATE
POWER KNEE operates in “standing state” when no activities are detected: the prosthetic
knee locks and provides full support whenever stance is detected, and unlocks and moves
freely during swing. “Standing state” is the default state of the POWER KNEE.
Vantar mynd
Vantar mynd

www.ossur.com QRC 0003 EN Rev. 5
©Copyright Össur 2013
WARNINGS ERRORS
Prosthesis vibrates/beeps and LED flashes orange slowly
1. “Low-batt. warning”: battery nearly depleted. Check battery status and replace the battery.
2. “Overheat warning”: high prosthesis temperature. STOP and feel prosthesis
temperature.
Prosthesis vibrates/beeps repeatedly and LED flashes orange quickly: STOP and determine whether
stance support is present. Prosthesis motor will shut down soon!
1. “Low-batt. error”: critical battery charge. Check battery status and replace the battery.
2. “Overheat error”: critical prosthesis temperature. STOP and feel prosthesis temperature. Let
the prosthesis cool. Reset it by powering it o/on. If problem persists, call your Össur repre-
sentative.
Full battery
Low battery
Battery Charge
No LED goes on:
Battery is depleted.
 LEDs go on (wave-like):
“Self-maintenance” to take
place soon.
 LEDs Flash:
“Self-maintenance” required,
battery needs to be charged.
“Self-maintenance” occurs
every  months and may last
up to  hours!
* Battery status button pressed
Charging
Flashes
Charge completed
(typ. 3.5 hrs)
Steady
PROBLEM!
Battery Status*
Power On/O
OK
PROBLEM !
Power on
Power off
Refer to “Power Knee Instructions for Use”
for detailed information, user safety
instructions and product precautions.