Mettler Electronics Sonicator 706 - Continuous and Pulsed Waves; Combination Therapy

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CONTINUOUS AND PULSED WAVES:
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Ultrasound may be applied in either continuous or pulsed waveform.
Advocates of pulsed beam applications suggest the approach reduces the
thermal effects while accenting the mechanical. Wulff in his
paper titled,
"Reduction of Thermic Effect of Ultrasound Dosages by the Use of Pulsed
Ultrasound Energy" reported, ". . . the use of pulsed ultrasound energy
permits accurately controlled reduction of total ultrasound intensities
employed in therapy." He recommended the use of rectangular pulses and
stated, "The biologic response reactions of the sonated tissue seems to
continue during the
sound free intervals provided that a ratio between pulse
duration and free interval of 1:4 is maintained."
The ME 706 provides both continuous and pulse wave capabilities.
Continuous is a
100% duty cycle and an unmodulatd wave which orginates
from a filtered DC power source. The pulse setting has a pulse frequency of
100Hz with a pulse width of2milliseconds and8 milliseconds between pulses.
On time to total time is 1:5. The duty cycle is 20%and on time to offtime is a
ratio of 1:4. In the pulse mode, the meter reads peak power.
COMBINATION THERAPY:
Combination therapy may be performed by plugging the Sys·Stim@
muscle stimulator active lead wire (black
and negative) into the black col-
lared
phone jack located on the bottom of the Sonicator 705/706. The
phone jack is identified by the symbol A
When output is generated by the stimulator, it will be passed to the
metal ring
on the transducer head by means of this connection. The timer
on the Sonicator will control the length of time ultrasound is delivered.
The Sys" Stirn timer is placed into timer bypass during combination
therapy.
When the selected time has elapsed on the Sonicator, indicating
the
end of treatment, press hold on the Sys" Stirn to stop stimulation output
through
the transducer.
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