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02
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3
Design
Principles
The stimulator detects the motor unit action potential (MUAP) elicited during a
muscle contraction through the surface electrodes attached to the patient's body
part, extracts its active EMG signal and muscle strength after filtering, and then
simultaneously delivers low frequency electrical stimulation according to the
muscle strength exerted. The stimulation evokes an action potential causing a
muscle contraction that is stronger than the patient could achieve without the
stimulation. The patient is actively engaged in the training process through bio-
feedback technology. Please refer to chart 1 to 4.
Chart 1: The stimulator detects EMG signal through electrodes, and extracts muscle
strength by amplification and filtration, and then applies functional electrical stimulation
to the arm.
Chart 2: Leg EMG feedback functional electrical stimulation.
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It is customer responsibility to assure that this equipment and
vicinity equipment complies the value of radio frequency inter-
ferences shown in General Regulation for safety according to
IEC 60601-1-2 Tables as described in this section.
The manufacturer is not responsible for any interference caused
by using other than recommended interconnect cables or by
unauthorized changes or modifcations to this equipment.
Important Notice
The Aspire 2 meets the requirement of electromagnetic compatibility in IEC60601-1-2.
The user needs to install and use according to electromagnetism compatibility
information which is attached with it.
Portable and mobile RF communication devices may influence the Aspire 2
performance, so the Aspire 2 should be kept away from them during using.
Guidance and manufacturer's declaration stated in the appendix.
Warning:
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The Aspire 2 should not be used adjacent to or stacked with other equipment and
that if adjacent or stacked use is necessary, the Aspire 2 should be observed to
verify normal operation in the configuration in which it will be used.