Ossur i-digits - 4 Assembly; Thumb Rotator Assembly - Setting and Assembly

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Fig. 22:
Fig. 23:
Clutch Plate
4.0 Assembly
Hand tighten with fingers and then turn a further 120 to
150° to give the desired thumb friction depending on pa-
tient preferences (fig. 23), using the 8 mm Spanner. The
wire will now travel down through the centre of the spigot.
4.1 Thumb Rotator Assembly –
Setting and Assembly
The full thumb rotator assembly is illustrated (fig. 22). To
increase the force required to rotate the thumb, remove
the Nut Cap and use the 8 mm Spanner to tighten the M4
Locking Nut. The grub screw will need to be loosened to
tighten the nut.
Ensure the Clutch Plate is not contaminated,
as this will aect performance.