Cooper Surgical LEEP PRECISION LP-10-120 Manual De Funcionamiento página 17

5.6.2 Select the Output Mode (i.e., CUT, BLEND or COAG by Pushing
the Corresponding Button
Output Mode
CUT
BLEND
COAG
5.6.3 S et the Output Power level [confirmed on the digital display (
using the Output Power selector buttons as desired
The degree and speed of electrosurgical effect is largely dependent on Current
Density at the point of contact of the Active Electrode . Loop Electrosurgical Excision
Procedure electrodes from other manufacturers may vary in the diameter, thickness,
size, and configuration of the cutting wire. This may result in significant changes in the
electrosurgical effect at a given output power level setting . The use of CooperSurgical
LEEP PRECISION Electrodes is recommended .
5.6.4 Attendant Risks of High Frequency Electrosurgery
Electrosurgery produces sparks that can ignite flammable materials. This includes solvents,
adhesives, gauze, cotton, and also liquids and gases .
Further risks include:
• Pooling of flammable agents under the patient in body depressions or in body cavities.
• Oxygen-saturated gauze and cotton wool
• Accumulated oxygen gas: under covers, drapes, or clothing
• Ignition of endogenous gases in or near body cavities or osses
5.6.5 Electrosurgery
Electrosurgery is the use of energy created by a high frequency alternating current . The
tissue's resistance to the passage of this current creates heat internally in the tissue, as in diathermy .
Monopolar electrosurgery involves the use of two electrodes (an Active Electrode
and a Dispersive Electrode) of greatly different sizes . This results in greatly increased current
density at the point of the smaller electrode . While the electrode itself remains cold, the highly
concentrated high frequency energy creates molecular heat inside each cell . By the choice of
electrodes and selection and adjustment of the current, the operator controls the effect of this
energy on the tissues to achieve the desired results .
FOR MONOPOLAR SYSTEMS, IT IS RECOMMENDED TO KEEP
THE VOLTAGE/POWER AS LOW AS POSSIBLE TO ACHIEVE
THE DESIRED END EFFECT (due to the potential for capacitive
coupling and inadvertent burning at higher voltages).
With electronically generated electrosurgery current it is necessary to convert the 50/60 Hz
alternating current available at the wall outlet to the high frequency current needed for
electrosurgery . This conversion is accomplished by a high frequency generator . The high
e, f , or g)
1
Waveform Description
Continuous 495 kHz sinusoid
with minimal modulation
Interrupted 495 kHz sinusoid
intermediate-duty cycle
Bursts of 495 kHz sinusoid
short-duty cycle
WARNING
CAUTION
17
NOTE: Numbers in blue boxes refer
to those component parts in Figure 6 .
General Effect
Cutting without Hemostatis
Cutting with minimal
Hemostatis
Coagulation without Cutting
b and c and ) by
1
3