Cooper Surgical LEEP PRECISION LP-20-120 Manual De Funcionamiento página 12

The LEEP PRECISION Generator has output load characteristics that cause the electrosurgical effects to
remain consistent throughout the procedure . However, under some circumstances, it may be necessary to
readjust the power settings during the procedure .
The electrosurgical effect may vary throughout the procedure, requiring the operator to adjust the LEEP
PRECISION Generator relative power settings .
5.3.2 Select the Output Mode (i.e., CUT, BLEND or COAG by Pushing the Corresponding Button
e, f, or g)
Output Mode
CUT
BLEND
COAG
5.3.3 Set the Output Power Level [confirmed on the digital display (
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 .
5.3.4 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 a body cavity or os
5.3.5 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, 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 high voltages).
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
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General Effect
Cutting without Hemostatis
Cutting with minimal
Hemostatis
Coagulation without Cutting
b and c and )] by using
1 3
1