Otto Bock Triton 1C61 Instructions For Use Manual page 23

The use of heel wedges can facilitate stance phase flexion when bearing weight on the prosthesis.
Therefore, particular caution is advised during the dynamic alignment optimization – especially
when a knee joint without stance phase control is used.
4.2.1 Heel wedge application
Two heel wedges are included to each 1C61 Triton Vertical Shock prosthetic foot:
• „Soft" Heel Wedge: translucent
• „Stiff" Heel Wedge: graphite color
Should the patient feel the heel strike too soft or the knee in hyperextension during the mid-stance
phase, the heel can be stiffened by using one of the two heel wedges.
4.2.2 Inserting a heel wedge
INFORMATION
Ottobock recommends to test the foot first without using a heel wedge.
• Orient the heel wedge (Fig. 3, Pos. F) for insertion so the locking recess (Fig. 3, Pos. L) in the
wedge is positioned in the proximal and posterior direction.
• Slide the heel wedge into position from the posterior side of the prosthetic foot between the
attachment spring (Fig. 3, Pos. D) and heel spring (Fig. 3, Pos. B).
INFORMATION
• The heel wedge is properly installed when the locking recess (Fig. 3, Pos. L) in the heel wedge
is fully seated around the mating stop (Fig. 3, Pos. K) on the attachment spring.
• The heel wedge is designed such that no adhesive is required to affix it to the prosthetic foot.
4.2.3 Removing a heel wedge
INFORMATION
The heel wedge has a tendency to rotate during removal. Pulling the heel wedge in the direction
of rotation helps make the removal easier.
• Push on the medial or lateral side of the heel wedge with your finger to free it from the mating
stop (Fig. 3, Pos. K) on the attachment spring (Fig. 3, Pos. D).
• After the heel wedge is partially free grab it by the respective lateral or medial side and pull it
free from the prosthetic foot.
4.3 Selecting and adjusting the functional ring
The 1C61 Triton Vertical Shock is delivered as a complete foot assembly. The stiffness category
of the functional ring is synchronized with the weight category of the foot assembly. If during wal-
king too much compression of the functional ring is observed, an exchange to a stiffer functional
ring can be done.
NOTICE
Function loss as a result of improper use. The Functional Ring may only be selected/adjusted
by prosthetists that have been authorized by Ottobock.
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