Page 48 of 72
EN109-1498751-47 IFU
Parameters:
•
Surge Program
can be used to adjust repeated sequences of contraction and rest periods. Surge
programs are only available with MF and DF.
Galvanic current
Continuous galvanic current
The Direct Galvanic Current is a monophasic current that produces electrolysis by-products.
These by-products can result in etching beneath the electrodes. Always use properly
moistened sponge / electrode combinations to absorb these by-products during treatment.
Galvanic current works when combined with the correct ionized/electrically charged solutions, (i.e.
they are ions carrying either a positive or negative electrical charge, or will ionize with electricity).
This makes it possible to influence the skin's ability to absorb serums into the intracellular spaces in
the dermis. The absorption process is called iontophoresis because the electrical currents literally carry
ions into the tissues between the cells.
Interrupted galvanic current
The MF interrupted galvanic current is a monophasic current that produces electrolysis by-
products. These by-products can result in etching beneath the electrodes. Always use properly
moistened sponge / electrode combinations to absorb these by-products during treatment.
The medium frequency interrupted galvanic current is a monophasic rectangular waveform with a
pulse frequency of 8000 Hz and a duty cycle of 90%. As opposed to direct galvanic current, the pulsed
waveform provides increased patient comfort.
Faradic current
Faradic rectangular or triangular pulsed current
Faradic currents are monophasic currents that produce electrolysis by-products. These by-
products can result in etching beneath the electrodes. Always use properly moistened sponge /
electrode combinations to absorb these by-products during treatment.
Faradic currents are often used for muscle stimulation applications that are based on prior diagnostics.
The diagnostic objective is to obtain information on the sensitivity of the neuromuscular apparatus to
electrical stimulation. This gives an indication of the degree of denervation of the muscle tissue. With
this technique, the relationship between the current amplitude and phase duration of a rectangular
and triangular pulse is plotted in a strength/duration curve. The strength/duration curve is recorded
by observing the current amplitude required at various phase duration values (ranging from 0.01 to
1000 milliseconds) that produce a just perceptible (i.e. just visible or palpable) contraction of a muscle
or muscle group. The values observed can be plotted on graph paper with a logarithmic scale. In the
case of reduced or absent sensitivity to electrical stimulation, the strength/duration curve gives an
indication of the current waveform, phase duration and current amplitude of the electrical stimulus to
be used in any therapy that may be applied.
Parameters:
•
Phase Duration
, expressed in milliseconds or seconds, is the elapsed time from the beginning to
the end of the pulse phase.
•
Pulse Frequency
, expressed in Hz or pps (pulses per second), defines the repetition rate of the
current pulses.
•
Surge Program
can be used to adjust repeated sequences of contraction and rest periods.