GIMA SpA
DIATERMO MB250 – DIATERMO MB400
MA303IGBa-19-03-2007 Manuale
d’Istruzioni / Instruction’s Manual
36
5.
SAFETY
WARNING:
Electro-surgery 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., 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 Charactrestics).
It is recommended to inspect the integrity of the packaging of the sterile products.
5.1 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 advised.
•
By using the neutral electrodes throwaway respect the date of expire.
•
By using the reusable electrodes ascertain that the fixing systems give warranty of stability.
When you apply the neutral electrode
avoid the transversal course and prefer the vertical or diagonal course, in particular if a
split neutral electrode is used. That to allow an uniform delivery of the current on the surface of the neutral electrode and
reduce the risk of burn to the patient.
•
If it isn’t possible to use correctly the neutral electrode, consider, if it’s possible, the bipolar technic instead of the monopolar one.
•
The patient mustn’t 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 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
cable, the cables mustn’t be trampled down by persons or trolleys present in operating room, they mustn’t be fixed to the
operating field by instruments.
•
For surgical procedures where the h.f. current could flow through parts of the body having a relatively small cross-
sectional area; the use of bipolar technics may be desirable 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 fluid that deposits in these areas should be removed before
the equipment use. The danger of endogenous gas ignition has to be considered. Some materials like cotton wool or
gauze, when saturated with oxygen, may burst into flames because of the sparks produced by the equipment in the normal
use.
There is a risk for the patients fitted with heart pacemaker or other stimulation electrode: interference may occur with the
stimulator signal or the stimulator itself can be damaged. Please refer to Cardiology Unit when in doubt.
Electrosurgical equipment does emit unnoticed radiation of high frequency energy that may effect other medical
equipment, unrelated electronics, telecommunications, and navigational systems.
•
The accessory must be regularly checked, particularly the cables for the electrodes and the possible accessories for the
endoscopy to verify that the insulation is not damaged.
