Otto Bock 8E70 Instructions For Use Manual page 47

bebionic Hand Small
bebionic Hand Medium
Mediolateral thumb position:
This adjustment option allows the thumb to be
repositioned so it contacts the index and
middle fingers (tripod grip), or the index finger
only (pinch grip). The thumb position is
secured with an Allen screw on the bebionic
hand small and a number 2 slotted screw on
the bebionic hand medium. The medial end
stop can be adjusted with the screw when the
thumb is in the opposed position.
The adjustment screw is perpendicular to the
thumb axis and located under the gaiter.
Perform the following steps to make the adjust­
ments:
1) Turn off the energy supply to the terminal
device (e.g. button in the charging recept­
acle on the prosthetic socket or switch on
the elbow joint).
2) Separate the terminal device from the pros­
thetic socket.
3) Raise the gaiter on the wrist joint and
expose the adjustment screw.
4) Use a 3 mm Allen key for the bebionic hand
small and the spanner bit for the bebionic
hand medium on the mediolateral adjust­
ment screw on the CMC joint of the thumb.
5) Loosen the screw by turning it completely
counterclockwise twice.
Once the screw has been loosened, the
thumb is freely moveable and can be
repositioned manually.
6) Mount the terminal device on the socket,
turn on the energy supply and set the new
contact point of the thumb with the index
finger (pinch grip) and the index and
middle fingers (tripod grip).
7) By closing and opening the terminal
device, check the new contact point of the
thumb with the index finger (pinch grip)
and the index and middle fingers (tripod
grip).
Once the new thumb position has been set,
close the hand and switch it off. Thus the
closed grip secures the thumb position.
8) Switch the terminal device off with the
thumb fixed.
9) Retighten the adjustment screw by turning
it clockwise, and reposition the gaiter.
10) Switch the terminal device on and test it
with the user.
47