Otto Bock SensorHand Series Instructions For Use Manual page 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
Speed and level of
muscle tension to
electrode
Speed: proportional
15 mm/s to
300 mm/s
9.4.1 Control with 1 linear transducer
proportional. Opening speed is determined by speed and force of pull on linear
Open:
transducer.
proportional. Closing speed is determined by release speed of pull on linear
Close:
transducer. This also determines the level of the maximal grip force increase.
very slow pull release on linear transducer. Hand remains in opened position.
Stop:
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
Speed and force
of pull on linear
transducer
Speed:
proportional
15 mm/s to
300 mm/s
SensorHand Speed
CLOSE
Speed and level of
muscle relaxation to
electrode
Speed: proportional
15 mm/s to 300 mm/s
Close
Release speed on linear
transducer
Speed:
proportional
15 mm/s to 300 mm/s
Initial Grip AutoGrasp Grip
Strength Force Increase
10 N None at low to
medium Closing
speed
10 N At medium to high
Closing speed up
to max. 100 N
Initial Grip AutoGrasp Grip
Strength Force Increase
10 N At low to medium
closing speed:
none
10 N At medium to high
closing speeds:
up to max. 100 N
FlexiGrip Function
Effective at 15 N
with low to medium
Closing speed
Effective at 130 N
with medium to high
Closing speed
FlexiGrip Function
At low to medium
closing speed:
Effective from 15 N
At medium to high
closing speeds
effective at maximal
grip force
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