Ossur PROPRIO FOOT, Technical Manual

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• Roughen the rear aspect of the socket and then clean the surface.
• Attach Velcro to the socket and the corresponding surface on the battery.
(Figure C)
• Press down the battery pack for secure attachment.
• Reinforce the attachment of the battery module by wrapping the battery to the socket with electrical tape
or similar.
Make sure the connection cable lies flat against the surface of the prosthesis because a loose cable can get
caught. Observe the cable position during walking and make changes to the assembly if necessary.
DEFINITIVE SOCKET: BATTERY ASSEMBLY
• Mark the best suitable position of the battery pack identified during diagnostic socket fitting (see chapter
“Diagnostic socket: battery assembly” ).
• Recommendation: Position the battery pack as proximal as possible on the rear aspect of the socket.
• Check the position using the dummy
(Figure D) .
• Follow the common lamination guidelines and position the lamination dummy as marked, with the curved
side facing towards the socket before applying the final layer.
• Proceed with lamination as usual.
• After the lamination has cured expose and remove the dummy
(Figure E)
.
• Apply double-sided tape on the imprinted area and attach the battery pack by pressing both surfaces
together.
• Wrap any excess length of the battery connection cable around the pylon or socket connector. Make sure
that the connection cable does not interfere with actuator motion. Observe the cable position during
walking and make changes if necessary to the assembly.
BENCH ALIGNMENT (Figure F)
Overview
• Fit the foot with the selected cover and shoe.
• Power ON (see chapter
“Power ON” ).
• Adjust the Heel Height to the preferred shoe (see chapter “Heel Height Adjustment” ).
• Proceed with alignment and corrections above the foot level.
• Establish the correct height of the prosthesis using the appropriate components.
• Ensure that the alignment is correct in the sagittal and coronal planes. In the sagittal plane, the alignment
reference line should bisect the center of the socket at MPT and pass through the posterior middle 1/3
mark on the foot module.
DYNAMIC ALIGNMENT AND USE OF HEEL WEDGES
Optimum functional benefits will only be achieved when the rollover function is optimized. The heel wedge
can influence the heel- to-toe function. Start changing the heel resistance to improve foot response adding a
heel wedge. The 2°, 4° & 6° wedges can be interchanged to customize the stiffness of the heel and achieve
the desired functional characteristics. A combination of wedges may be used. Have the user walk on even
ground and assess proper heel-to-toe function.
Temporary Wedge Placement (Figure G)
• Cut the wedge to the width of the foot module.
• Roughen the upper and lower surface of the wedge with abrasive paper.
• Place the wedge in the angle of the heel and foot module.
• Secure the wedge in position with tape wrapped around the foot module.
Permanently fix wedges when proprio foot
®
is used for more than a couple of days.
Temporarily fitted wedges will move out of position and cause functional issues.
Failure to do so can void the warranty.