Glossary Of Terms; Symbols And Icons; Chapter 1 Introduction; Overview - nContact CS-3000 Manual Del Usuario

CS-3000 RF Generator Unit Operator Manual
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and the CS-3000 RF Generator
The CS-3000 RF Generator is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The customer or the user of the CS-
3000 RF Generator can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment
(transmitters) and the CS-3000 RF Generator as recommended below, according to
the maximum output power of the communications equipment.
Separation Distance According to Frequency of Transmitter
Rated
Maximum
Output Power
150 kHz to 80 MHz
of Transmitter
d = 1.2√P
(W)
0.01 0.12
0.1 0.38
1 1.2
10 3.8
100 12
For transmitters rated at a maximum output power not listed above, the recommended
separation distance 'd' in meters (m) can be estimated using the equation applicable
to the frequency of the transmitter, where 'P' is the maximum output power rating of
the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher
frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures,
objects and people.

Glossary of Terms

Surgical procedures in which high-frequency electric
Electrocoagulation
current is used to coagulate tissues.
The metal conductor in the coagulation device used to
Coagulation Electrode
transmit RF energy to tissue.
Commonly referred to as the "return electrode" or
"patient electrode" or "ground pad." Large surface area
Indifferent, Dispersive
Electrode ground used to complete the circuit of the electrical
current. Usually placed on the patient's back or thigh,
the Indifferent, Dispersive Electrode is connected to the
generator at the Indifferent Connector.

Symbols and Icons

Manufacturer
VAC Vacuum
Keep Upright
Equipotentiality
Connection
Indifferent, Dispersive
Electrode
Caution: Electrical Shock
Hazard
W Watts

Time
Follow Instructions for Use
Serial Number

Alternating Current
Control Buttons to
+
Increase Power or Time
Control Buttons to
-
Decrease Power or Time
Protective Earth Terminal
Separate Collection for
Electrical Equipment per
WEEE Directive
Authorized Representative
AtriCure, Inc.
(m)
80 MHz to 800
800 MHz to 2.5 GHz
MHz
d = 2.3√P
d = 1.2√P
0.12 0.23
0.38 0.73
1.2 2.3
3.8 7.3
12 23
Catalog Number
Radiofrequency
RF
Perfusion
Defibrillation Proof Type CF
Applied Part
Caution
Footswitch Connection
Non-ionizing Radiation
Ω
Ohms
Seconds
s
Alarm Volume Control
Neutral Electrode Isolated
from Earth
0 AC Power Switch OFF
AC Power Switch ON
l
Measurement Out of Range
OC
Product complies with the
requirements of directive
93/42/EEC
Dangerous Voltage
Operating
temperature range
Operating humidity
range
Operating pressure
range
Non-Sterile
Federal (USA) law restricts this device to sale by or on the
order of a physician.

Chapter 1 Introduction

Overview

The nContact Model CS-3000 RF Generator Unit transmits a high-frequency alternating
current through a coagulation device to coagulate soft tissue. The RF current induces ionic
agitation in the tissue causing molecular friction and producing heat. Thus, the heat is
generated in the tissue and not in the device.
As the temperature in the tissue increases, tissue coagulation occurs leading to cell
necrosis. The tissue temperature and volume of coagulated tissue are affected by the
amount of Power delivered, the surface area of coagulation device contacting the tissue,
and the duration of energy delivery.
The generator operates in either the Power Control or Diagnostic Evaluation mode.
When operating in Power Control mode, set the desired duration and Power level. The
generator will transmit Power at the set point for the Time set by the operator. Power may
be adjusted manually throughout the treatment to tailor the coagulation process but caution
should be used when deviating from the recommended, pre-set power settings.

Product Description

The nContact Model CS-3000 RF Generator Unit is an electrosurgical generator that
transmits RF current at a frequency of 480 kHz. The generator transmits up to 100 watts
(W) of Power (+/- 20%), depending on the coagulation device connected. While the RF
Energy is delivered, Power, Impedance, and Time are continually measured and updated
on the generator display.
Figure 1 shows the Power versus Impedance curves at set power levels of 100 Watts and
50 Watts. The RF Generator operates between 30 and 500 ohms. The RF Generator
produces constant power along the operational impedance range. Figure 2 shows the
relationship between Voltage and Impedance. Figure 3 shows the relationship between Set
Power and Delivered Power at an impedance of 275 ohms.
Power & Voltage Output Diagrams
Figure 1. Power Output versus Impedance Load
CS-3000 Power Curves
100
80
60
40
20
0
0 200 400 600
LBL-2123 Rev. F
Storage temperature
range
Storage humidity
range
Storage pressure
range
Non-ionizing
electromagnetic
radiation
100 W Power
50W Power
800 1000 1200 1400 1600
Impedance - Ohms
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