Ossur PRO-FLEX XC PXC0xyyz Gebrauchsanweisung Seite 7

• The 1/3 position is marked on the inside wall of the foot cover.
DYNAMIC ALIGNMENT
The heel stores energy after initial contact, slowly releasing it at
midstance. The forward momentum generated by this action results in
the toe being loaded for optimum energy release at terminal stance. The
heel-to-toe action can be influenced by:
• Anterior -Posterior positioning of device.
• Dorsi-Plantarflexion.
• Heel Stiffness.
HEEL STIFFNESS
Heel too soft
Symptoms
• Device will come to flat position too early (user feels he/she is sinking
into a hole).
• Extra energy is required to climb up over the toe.
• Toe will feel too stiff.
• Knee may hyperextend.
Action
• Shift socket anterior (or device posterior).
Heel too hard
Symptoms
• Rapid heel-to-toe movement.
• At initial contact the user has poor control of the prosthesis.
• Minimal energy return feeling.
• Knee may become unstable.
Action
• Shift socket posterior (or device anterior).
PROTECTIVE FILM ON PYRAMID
The protective film protects the pyramid from scratching. Remove the
film when the fitting is complete.
FOOT COVERS AND SPECTRA SOCKS (Figure 3)
• The device is designed to be used with a recommended foot cover
and Spectra sock.
• Use a shoehorn when fitting and removing foot covers to avoid
damage (Figure 3a and 3b).
• Ensure the device is placed completely into the foot cover when
fitting.
MAINTAINANCE & CLEANING
N.B.: The device should always be used with spectra socks and foot
covers to minimize dust and dirt from entering between carbon blades. It
is important to fix the spectra sock around the pyramid location in order
to prevent noise coming from sand entering between carbon blades.
• The device is weatherproof, but not resistant to corrosion. The device
should not come into contact with salt water or chlorinated water. In
cases where it does, the device must be rinsed with fresh water
immediately, and dried with a lint-free cloth.
• If device components get wet, parts should be dried with a lint-free
cloth.
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