COVVI HAND, Техническое руководство, Страница: 65 / 83

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11.0 COVVI Go App
For Dual Site Open/Close the following parameters can be established:
Open/Open Time -
This is the time in which a second open signal must be sent after the hand is fully opened
or after the first open signal for the Open/Open grip switch trigger to work.
Long Hold Open Time - This is the time an open signal must be maintained once the hand is fully opened for
the Long Hold Open grip switch trigger to work.
Co-Contraction Time - This is the time in which both inputs must pass the Co-contraction thresholds after the
On threshold has been reached.
Input A and B Speed - The maximum speed of the fingers and thumb can be reduced. It can be set between
50% and 100%. If Input A is the open signal and Input B the close signal and you reduce the percentage for
both inputs, the speed of opening and closing the hand will be reduced. If you just reduce the percentage
for Input A, only the speed at which you open the hand will be reduced. This is a feature designed to aid new
users who are still adapting to using a prosthetic device.
Mode Specific Parameters
Digit Hold Time - This is the time you have to apply pressure on the FSR for the grip switch trigger to be
activated. Click on the plus (+) or (-) symbol to increase or decrease the time.
Dorsal Button Hold Time - This is the time you have to hold the dorsal button down for the grip switch trigger
to be activated. Click on the plus (+) or (-) symbol to increase or decrease the time.
Grip Strength - The Grip Strength is the strength at which the fingers grasp an object. It can be set between
20% and 100%. Click on the plus (+) or minus (-) symbol to adjust the percentage.
Grip Force Mode - The Grip Force Mode allows the grip strength to be controlled by one of two modes: fixed
or proportional. In fixed mode the hand uses the same grip strength regardless of the user’s input signal. It
moves the maximum grip force down. In proportional mode, the grip strength is proportional to the user’s input
signal. Their signal not only controls the force applied to the object but the speed at which the hand moves.
It offsets the maximum grip force from their input signal.
Swipe left to choose the operating mode specific parameters.