User manual

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Activate the apparatus via the foot switch. Gradually read all the output performance
values on the tester’s display and record them in the respective table. Then switch the
apparatus into the mixed section, coagulation and mixed coagulation functions and repeat the
measurement. Repeat the same procedure for all the remaining modes and functions.
Proceed likewise for the bipolar mode measurements, only following the instructions
in the operation manual [7.5], which relate to operating the apparatus in bipolar mode.
For all the measurements, make use of the possibility of connecting the RF 303 tester
to the oscilloscope and display the course of the actuating signal in the individual modes and
functions of the electrosurgical generator CLINIC 170W. Record the measured results in Tab.
7.1 and 7.2.
Measurementofthepassingcurrentduringsectionandcoagulation,formonopolar
andbipolarmodesatdifferentohmicloadsizes
The principle of the measurement is identical to that of the performance measurement.
Carry out the measurements for the section and coagulation, and again in monopolar and
bipolar modes for different load resistance values. Increase the performance on the
electrosurgical unit gradually by means of the regulator No. 5 (Fig. 7.1) from the MIN
position to the MAX position. Connect the apparatus to the tester in the same way as
described in the previous section. Only set the RF 303 tester to current measurement [7.6].
Proceed likewise for the bipolar mode measurements, only following the instructions
in the operation manual relating to operating the apparatus in bipolar mode [7.5].
For all the measurements, make use of the possibility of connecting the RF 303 tester
to the oscilloscope and display the course of the actuating signal in the individual modes and
functions of the electrosurgical generator CLINIC 170W. Record the measured results in
Tabs. 7.3 to 7.6.
Measurementoftheleakagecurrentsbytheappliedpart
Special attention is paid to the safety of the electrical medical devices. At present, the
requirements imposed on the medical electronic devices stem from the widest European
standards, namely from ČSN EN 60601-1 [7.8]. This standard gives the maximum values for
the leakage currents by the applied part. Dangers and risks of using medical instrumentation
are generally summarized in the standard IEC 513 from 1994 [7.9]. This chapter focuses on
how to prevent the dangers connected with energy supplied during the apparatus’ normal
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