EN‐16
MA510a_EN
Instruction’sManual
Ifitisn’tpossibletousecorrectlytheneutralelectrode,consider,ifit’s
possible,thebipolartechniqueinsteadofthemonopolarone.
The patient does not must be in contact with metal parts that are
connectedto the earth or havealarge electrical couplingcapacityto
the earth (for example: oper
ating‐table or metallic support). The use
ofantistaticsheetsisadvised.
Avoidtheskintoskincontact(forexamplebetweenarmandbodyof
the patient). Insert an interface material like dry surgical gauze.
Moreover, the parts of the body subjected to abundant perspiration
mustbemaintaineddry.
Whe
nhighfrequencyelectrosurgicalunitandphysiologicalmonitoring
devices are used at a time in the same patient, all the monitoring
electrodes,thathavenotresistiveorinductiveelementstestedinhigh
frequencyinterferenceenvironment, must be as far as possible from
theelectrodesoftheelectrosurgicalunit.Avoidtheuseofmonitoring
needles.
The con
nection to the electrodes should be located in such a way to
avoidthecontactbothwiththepatientandwithothercables.
ForsurgicalprocedureswheretheHFcurrentcouldflowthroughparts
of the body having a relatively small cross‐sectional area
; the use of
bipolar techniques may be desiderable in order to avoid unwanted
coagulation.
Thepowerlevelshouldbethelowestusefultotheworktodo.
Always check the return plate whenever electrosurgical unit fails to
producethedesiredeffect.Reasonforalowoutputpow
erlevel,orfor
anincorrectfunctioningoftheelectrosurgicalunitwhen arrangedfor
anormaloutput,maybe lack of connectionof the returnplate orits
imperfectplacement.
Theuseofflammableanesthetics,ofoxygenandofnitrogenprotoxide
should be avoided in the case of operation at the hea
d or at chest
level except the possibility of evacuating gas. Flammable materials
used to clean, or to disinfect, should be let to evaporate before the
useoftheelectrosurgicalunit.Thereisriskofstagnationofflammable
solutionsunderthepatientorinbodycavitiesastheumbilicusandthe
vagina. The fl
uid that deposits in these areas should be removed
beforetheequipmentuse.Thedangerofendogenousgasignitionhas
to be considered. Some materials like cotton wool or gauze, when
saturated with oxygen, may burst into flames because of the sparks
producedbytheequipmentinthenormaluse.
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