Ottobock 8E38 8 Serie Información Para El Paciente página 37

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Control Mode 3: VarioControl: One electrode
Opening
Increasing electrode signal
Speed: Proportional
Control with one linear transducer
Proportional. The speed and strength of the pull on the linear transducer determine the opening
Opening:
speed of the MyoHand VariPlus Speed.
Proportional. The speed and amount of the release of the linear transducer determine the
Closing:
closing speed.
By very slow release of the linear transducer, the hand stops in an opened position.
Stopping:
Example 1: After opening the amputee slowly releases the pull on the linear transducer. The object is
grasped with low force.
Example 2: After opening the amputee releases the pull on the linear transducer at maximum speed. The
hand closes at maximum speed and grasps an object with of grip force of approx. 100 N.
Control Mode 3: VarioControl: One linear transducer
Opening
Increasing electrode signal
Speed: Proportional
Control Mode 4: VarioDual
Requires: 2 electrodes
Control with two electrodes
With this control mode, the opening speed is determined by the strength and speed of the muscle contrac-
tion. The closing speed depends on the speed of the muscle relaxation. The following or simultaneous
muscle signal to the second electrode determines the grip force.
Electrode 1:
Proportional. The opening speed is determined by the speed and strength of the muscle con-
Opening:
traction.
Closing
Declining electrode signal
Grip force: Proportional to the decline of the elec-
trode signal
Gripping once with maximum force prevents the
hand from opening due to unintentional electrode
signals.
Speed: Proportional
Closing
Declining electrode signal
Grip force: Proportional to the decline of the elec-
trode signal
Gripping once with maximum force prevents the
hand from opening due to unintentional electrode
signals.
Speed: Proportional
Ottobock | 37
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8e39 8 serie8e41 8 serie

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