Safety Warnings - Össur OH7 KNEE Notice D'utilisation

To achieve a comfortable gait, first adjust the flexion with the patient walking slowly and at faster walking speeds.
Then the gait can be harmonised by adjusting the extension.
When setting up the joint, ensure that it is finely adjusted for the individual user and turn the valves in small steps
of 1 - 2 notches. Check the result.
Ask the user to walk more quickly and adjust the settings if necessary.
Excessive heel swing (above 60° f lexion angle)
Turn the flexion valve A to the right (Fig. 4)
Ask the user to walk at moderate walking speeds and adjust the settings if necessary.
Too much f lexion
Turn the flexion valve B to the right (Fig. 5)
Too little f lexion
Turn the flexion valve B to the left (Fig. 6)
Excessively hard extension stop
Turn the extension valve C to the right (Fig. 7)
Extension too slow
Turn the extension valve C to the left (Fig. 8)
Note: Closing the flexion valve actuates the extension movement earlier!

SAFETY WARNINGS

• Adapters used at the upper connection must always be tightened to the prescribed torque for the respective
modular component. Use a torque wrench.
• The adapters used for the lower connection (e.g. tube adapter) must be inserted down to the end stop in the
tube receiver of the knee joint.
• Tighten the screw (5) in the tube receiver to 16 Nm and secure with Loctite. Use a torque wrench (5 mm Allen).
• The central screws (34, 35, 36) must be tightened to a torque of 35 Nm and secured with Loctite. Use a torque
wrench (8 mm Allen).
• Observe the alignment guidelines and adjustment instructions.
• Do not unscrew any other screws than those described here.
• The valves must not be completely closed while walking.
• The knee joint must not be adjusted in flexion.
• The use of talc, particularly together with lubricants, can cause the joint to jam. Thus please do not use any talc!
• Do not use compressed air for cleaning. We recommend the use of a brush.
• Always observe the basic rule for setting the valves (open valve A + open valve B ≥ open valve C).
When using with a IKF adapter
• If there are any visible changes, wear-and-tear, or functional limitations, replace the IKF adapter or its buffer.
• Please make sure that the patient is familiar with the handling of the IKF adapter and his prosthesis before
leaving the premises. Failure to observe this warning may cause the patient to fall.
• Any manipulation whatsoever leads to premature wear-and-tear (fracture) of the adapter.
• Make sure you assemble the IKF adapter in the correct AP direction.
• Make sure you mount the buffer elements correctly.
When using with a loop adapter
• Laminate the loop adapter with sufficient carbon fibre and fibreglass to ensure the user's safety.
• The thread of the loop adapter must be free from Plastilin and resin residues after lamination, otherwise the
central screw (35) can not be screwed in completely.
• Make sure that the fine teeth on the two adjustment discs are facing each other.
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