maxium® smart C Electrosurgery Unit with maxium® smart Beam
Revision 1
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To prevent this, observe the following rules:
•
Select low gas flow rate!
Use endosurgical applicators working with low gas flow rates of no more than
of 3 l/min.
•
When using an insufflator, it must be equipped with a pressure monitoring unit that gives alarm in case
of exceedance of a permitted limit value, alerting the user and enabling him to take measures for
reduction of the pressure.
•
When no insufflator is used, provide for discharge of the accumulating argon if there is the danger of a
pressure increase by argon.
5.7.1
Contamination of the operation field
The cylinders for argon, the fittings attached to them and the valve block in the maxium® smart Beam with
the connection for gas inlet and applicator comprise no parts that are suitable as a habitat for germs. But
they are non-sterile and not intended to be sterilized either. If this is critical for an application, then there is
the possibility of inserting a sterile filter for single use with a pore width of 0.2 µm between the gas outlet
of the unit and the sterilizable applicator. Such filters are available as accessories, see section 7.1.4
“Argon”, page 40. These filters hold back germs that are larger than viruses.
5.7.2
Concentration of argon in the breathing air
Because of its inertness, argon – unlike carbon dioxide which is also used in medical technology – does not
affect gas exchange in the lungs, but it can displace the respiratory air if the concentration becomes very
high. In a normally ventilated room, under normal conditions of use of the maxium® smart Beam no argon
concentrations can form which entail danger of asphyxiation. Argon is a possible danger if it leaks in
unventilated locations or pits. Since argon is heavier than air, it can accumulate on the ground if sufficient
ventilation is not ensured.
5.8
Miscellaneous
5.8.1
Inadvertent emission of HF current
Accidental pressing of an activation element, triggering of the automatic activation system or malfunctions
of the unit or accessories may lead to uncontrolled activation of the generator. In order to minimize the
resulting risks for patients and users, observe the following rules:
•
Do not deposit electrosurgical instruments on the patient.
•
Deselect the permanently connected foot switch or lift it from the floor when it is currently not
required, see section 10.3.4 “Selecting the Activation Type/Foot Switch”, page 55.
•
Certain foot switches have magnetically activated reed contacts and must therefore be kept out of the
immediate vicinity of magnetic fields (especially of MRTs).
Otherwise this can lead to unintentional activation of the foot switches. For the same reason, magnets
must be kept out of the immediate vicinity of the foot switches.
Further information can be found in the respective instructions for use of the foot switch.
