Utah Medical Products FINESSE +, Руководство по обслуживанию

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Service Manual
1
Introduction
This manual is intended to:
• introduce you to the ™ Electrosurgical Generator and Smoke Evacuation System,
• acquaint you with the principles of electrosurgery,
• make you aware of some important concerns inherent in electrosurgery, and provide instruc-
tions for operating this instrument in performing electrosurgical procedures.
Description and Application
The system combines a high-quality, class I type BF electrosurgical generator and a
smoke evacuation system into a single compact unit. This integrated system was designed to per-
form low-power excision and coagulation procedures of short duration. It is not intended for
high-power procedures such as prostatic resection or for sustained operating room procedures
that require continual application of electrosurgical energy with only brief periods of rest.
Electrosurgical Generator
The electrosurgical generator module in the system is designed according to the same
principles as the more powerful general surgery units that are commonly used in hospital operat-
ing rooms; however, its power output is limited to the range necessary for the shallower and less
extensive cuts that are performed in office-based electrosurgical procedures.
The output waveforms and load characteristics in the pure cut and blended cut modes are opti-
mized for excisions in which the cut starts with only a small area of the cutting electrode in con-
tact with tissue and proceeds to a maximum depth where the cutting line may be more than two
centimeters long. The Controlled Output Circuitry of the system is a negative-feedback
output monitoring system that senses the changes in load resistance that occur throughout the
excision and adjusts the power to match the needs of the cut. This prevents excessive tissue dam-
age at the start and end of the cut and prevents slowing of the electrode when excising at the
maximum depth.
The system provides a pure cut mode and three blend modes that perform concurrent
cutting and superficial coagulation as required by standard practice for excision procedures. The
coagulation mode provides sufficient voltage and power for spray coagulation, or fulguration,
using ball electrodes.
The generator incorporates an error detection and alerting system that will alert the user and shut
down output power whenever the following occurs:
1. both cut and coag modes are simultaneously keyed ("cross-key" error),
2. a dispersive pad cable breaks or becomes disconnected