Utah Medical Products Finesse ESU-110, Service Manual

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cutting loops, balls, and other surgical tools. When these pens
are used, the electrosurgical current must be activated by a
footswitch connected to the footswitch connector on the rear
panel of the unit.
10. Mode Select Switch. This switch allows the selection of the
appropriate mix of cut and coagulation activity for the per-
formed procedure.
In the cut mode, a continuous sinusoid voltage is applied to
the surgical tool in use. If the loop wire diameter 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 loop electrode will cut cleanly
through the tissue while the surface of the cut is heated to
accomplish a degree of coagulation. "Blend 1" produces slight
coagulation, whereas "Blend 2" and "Blend 3" produce succes-
sively higher degrees of coagulation.
In 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. Further information
useful in selecting blend modes is given in the “Principles of
Electrosurgery” section of the
Finesse ® Operator's Manual and
the “Technical Data” section of this manual.
11. Smoke Filter Connection. This connection, the large circular
structure on the face of the front panel, accepts the external
disposable filter pack which provides first- and second-stage
particulate removal and odor adsorption.
Rear Panel Controls and Connectors
Controls and connectors on the Finesse ® rear panel are shown in
Figure 2 and are described below.
Figure 2. Finesse ® rear panel connectors
1. Footswitch Connector. This connector accommodates two-
pedal footswitches designed to separately control cut and coag
modes.
2. AC Power Cord Connector. This connector is a three-contact
connector for use with high quality three wire power cords.
3. Fuse Sockets. These three sockets house the fuses that pro-
vide overcurrent protection for the Finesse
®
unit. They are
labeled with the appropriate fuse specifications for these cir-
cuits. Use only the correct fuses as specified by these labels.
4. Audible Tone Volume Control. This control adjusts the vol-
ume of the cut and coag mode activation tones. Due to inter-
national regulatory requirements, alarm tones are not affected
by this control, and are not adjustable.
Finesse Service Manual
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