Utah Medical Products FINESSE +, Service Manual

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16
Service Manual
Cut/Blend Mode Controls
Cut/Blend mode controls are identified by the use of yellow markings and are contained
within the ellipse tagged with the "cut/blend" icon
.
3. Cut/Blend Output Activity Icon and Indicator. This icon lights yellow whenever the pure
cut or blended cut modes are activated. Illumination of this icon is accompanied by
an audio tone unique to the cut/blend mode. This is the lowest pitch of the three
audio tones used in the system.
4. Cut/Blend Output Control Knob and Display. This knob is used to specify the output level
desired for the intended cut. The adjacent digital readout indicates the current setting.
The cut mode display can be continuously adjusted between "05" and "99". The output setting
cannot be adjusted during activation. In general, higher output levels are required for thicker
or wider loop electrodes or for deeper submersion of the cutting electrodes in the tissue.
These principles are discussed in the
Principles of Electrosurgery section of the
Operator's Manual.
As mentioned in the safety warnings of the operator's manual, this knob should not be turned
up to correct an apparent power output deficiency without first verifying that all connections
are in good order and the patient dispersive electrode is still properly applied.
5. Cut/Blend Mode Select Switch. This switch allows the selection of the appropriate mix of
cut and coagulation activity for the performed procedure. One 'pure cut' and three
blended cut modes are available.
In the 'pure cut' mode (denoted by an illuminated "C" when selected), a continuous
sinusoidal voltage is applied to the surgical tool in use. If the electrode area is small
enough, it will cut through tissue very cleanly with very little surface heating that
would stop bleeding. In the blend modes, the same electrode will cut cleanly
through the tissue while the surface of the cut is heated to accomplish a degree of
coagulation. "Blend 1" (denoted by an illuminated "1" when selected) produces slight
coagulation, whereas "Blend 2" (denoted by an illuminated "2" when selected) and "Blend 3"
(denoted by an illuminated "3" when selected) produce successively higher degrees of
coagulation.
When switching between these modes the total output delivered to the surgical tool is
maintained at a constant setting as set by the output control knob above the switch.
Changing the mode switch during activation is not allowed, and results in an error condition.
"Er Or" is displayed on the front panel, the output is deactivated, and a warning tone is
produced. The system main power switch must be shut off to clear this condition.
If this error recurs, do not attempt to use the system, and contact Utah Medical
Products for instructions.