9.7 - Programme EVOCATED
Pre-set parameters:
Frequency: 35 Hz.
Pulse-width: 350 µs.
ACTION! time: 3 sec.
RELAX time: 8 sec.
Unlike electrostimulation only programs, it is also
necessary to connect a self-adhering reference
electrode (§ 7.3).
EVO, standing for (evoked stimulation) administers
action/rest cycles of perineal electrostimulation but
each cycle must be activated by the patient's
voluntary contraction, upon reaching a defined
threshold.
In the evoStim
®
E unit, the patient's contraction is
detected through the same probe used for
electrostimulation. The gold electrodes of the probe
may alternatively administer electrostimulation
pulses or acquire the EMG (electromyographic)
signal. The latter will be directly proportional to the
voluntary contraction of the perineal muscles in
contact with the probe in the vaginal cavity.
The pre-set threshold is 8 µV and can be manually
changed (§ 8.2.8). That threshold, however, will also
automatically increase every three voluntary valid
contractions. The ability, the will and/or the
perseverance of the patient in reaching more and
more thresholds makes this programme extremely
effective for the functional recovery of the pelvic
floor. The last threshold value reached is
automatically stored at the end of the session, and
will constitute the starting threshold of the next
session.
The EVO programme exploits the biofeedback
function of evoStim
®
E, by acquiring the EMG
signal on the electrodes of the probe and showing its
value through a Concentric Circles Target (CCT) on
the display.
The patient will see a number of concentric circles
activated from outside to inside (from largest to
smallest) proportionally to the voluntary contraction
of the perineal muscles.
To Next Page
Loading...