Otto Bock SensorHand 8E38 8, Instructions For Use Manual

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SensorHand Speed Ottobock | 29
Example 2: After opening the amputee relaxes the muscle at maximum speed. The Hand
closes at maximum speed und begins to grasp the object with 10 N. If the
Sensor senses a change in position, it automatically readjusts – if necessary –
up to the maximum grip force (100 N).
Program 4:
1-electrode control VarioContol (blue coding plug)
OPEN CLOSE Initial Grip
Strength
AutoGrasp Grip
Force Increase
FlexiGrip Function
Speed and level of
muscle tension to
electrode
Speed: proportional
15 mm/s to
300 mm/s
Speed and level of
muscle relaxation to
electrode
Speed: proportional
15 mm/s to 300 mm/s
10 N
10 N
None at low to
medium Closing
speed
At medium to high
Closing speed up
to max. 100 N
Effective at 15 N
with low to medium
Closing speed
Effective at 130 N
with medium to high
Closing speed
9.4.1 Control with 1 linear transducer
Open:
proportional. Opening speed is determined by speed and force of pull on linear
transducer.
Close:
proportional. Closing speed is determined by release speed of pull on linear
transducer. This also determines the level of the maximal grip force increase.
Stop:
very slow pull release on linear transducer. Hand remains in opened position.
Example 1: After opening the amputee slowly releases pull on linear transducer.
Closing takes place analog to time of muscle relaxation with slow speed.
The object is grasped with low force (10 N). There is no automatic grip force
increase.
Example 2: After opening the amputee releases the pull on the linear transducer at highest
possible speed. The hand closes with highest possible speed and starts to
grasp an object with 10 N grip force. If the Sensor senses a change in postion,
it automatically readjusts – if necessary – up to maximum grip force (100 N).
Program 4 : 1 linear transducer VarioControl (blue coding plug)
Open Close Initial Grip
Strength
AutoGrasp Grip
Force Increase
FlexiGrip Function
Speed and force
of pull on linear
transducer
Speed:
proportional
15 mm/s to
300 mm/s
Release speed on linear
transducer
Speed:
proportional
15 mm/s to 300 mm/s
10 N
10 N
At low to medium
closing speed:
none
At medium to high
closing speeds:
up to max. 100 N
At low to medium
closing speed:
Effective from 15 N
At medium to high
closing speeds
effective at maximal
grip force