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Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
MA036IGBEa
29
2. SAFETY
WARNING:
Electrosurgery can be dangerous. Careless use of any element in the electrosurgical
system may subject the patient to a serious burn. Read and understand all warnings, precautions, and
directions for use before attempt to use any active electrode. Neither LED S.p.A., Frosinone, Italy nor
any of the subsidiary sales organisations can be considered responsible for personal, material or
consequential injury, loss or damage that results from improper use of the equipment and accessories.
The accessories supplied with the unit have characteristics compatible with this supplied unit, they could be
incompatible with others electrosurgical units; the user must check, before connecting other accessories to this
unit, that they have characteristics of insulation compatible with those of this unit (see Technical Characteristics).
2.1 GENERAL
The following precautions reduce the risk of accidental burnings.
•
The whole surface of the patient plate must be placed on a well-vascularized muscle as next as
possible to surgical area. Avoid connecting the patient plate to bony protrusions, prosthesis,
cicatricial tissues, and parts of the body subjected to liquid accumulation or that present
subcutaneous adipose tissue. The part of the body must be without hair, dry and clean. Do not use
alcohol to clean the skin. The use of gelatinoid substances for the electrodes is not adviced.
•
The patient does not must be in contact with metal parts that are connected to the earth or have a
large electrical coupling capacity to the earth (for example: operating-table or metallic support).
The use of antistatic sheets is advised.
•
Avoid the skin to skin contact (for example between arm and body of the patient). Insert an
interface material like dry surgical gauze. Moreover, the parts of the body subjected to abundant
perspiration must be maintained dry.
(1) Treatment area
(1) Active electrode - (2) Reference electrode
(3) Dry gauze - (4) Antistatic cloth
•
When high frequency electrosurgical unit and physiological monitoring devices are used at a time
in the same patient, all the monitoring electrodes, that has not resistive or inductive elements
tested in high frequency interference environment, must be as far as possible from the electrodes
of the electrosurgical unit. Avoid the use of monitoring needles.
•
The connection to the electrodes should be located in such a way to avoid the contact both with
the patient and with other cables.
•
For surgical procedures where the HF current could flow through parts of the body having a
relatively small cross-sectional area; the use of bipolar techniques may be desiderable in order to
avoid unwanted coagulation.
•
The power level should be the lowest useful to the work to do.
•
Always check the return plate whenever electrosurgical unit fails to produce the desired effect. Reason
for a low output power level, or for an incorrect functioning of the electrosurgical unit when arranged
for a normal output, may be lack of connection of the return plate or its imperfect placement.
•
The use of flammable anaesthetics, of oxygen and of nitrogen protoxide should be avoid in the case of
operation at the head 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 use of the electrosurgical unit. There is risk of
stagnation of flammable solutions under the patient or in body cavities as the umbilicus and the vagina. The
