Olympus ESG-410 User manual

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician.
INSTRUCTIONS FOR USE
ELECTROSURGICAL GENERATOR
ESG-410
WA91307W
ESG-410 UNIVERSAL 1 BIPOLAR
MONOPOLAR 1
MONOPOLAR 2
NEUTRAL
UNIVERSAL 2
SURGISABER

Contents
1 Using this document..........................................................................................................7
1.1 User instructions ............................................................................................................7
1.2 Conventions throughout this document..........................................................................7
1.3 Safety-related information in this document...................................................................7
2 Safety information..............................................................................................................9
2.1 Intended purpose ...........................................................................................................9
2.2 Contact.........................................................................................................................10
2.3 General safety notes ....................................................................................................10
3 Product description .........................................................................................................19
3.1 Scope of delivery .........................................................................................................19
3.2 Product functions .........................................................................................................19
3.3 Operating elements on the hardware...........................................................................21
3.4 Operating elements on the touchscreen ......................................................................22
3.5 Popups and messages.................................................................................................25
3.6 Symbols and icons.......................................................................................................26
3.7 Warranty.......................................................................................................................29
4 Installation ........................................................................................................................30
4.1 Safety notes for installation ..........................................................................................30
4.2 General inspection .......................................................................................................30
4.3 Placement of the electrosurgical generator..................................................................30
4.4 Connection of electrosurgical generator to the mains electricity..................................31
4.5 Connection of foot switches .........................................................................................32
4.6 Connection of peripheral equipment ............................................................................32
4.7 Connection for automatic smoke evacuation ...............................................................32
5 System settings................................................................................................................36
5.1 Operation of the touchscreen.......................................................................................36
5.2 Settings – Setup...........................................................................................................36
5.3 Volume control of activation tones ...............................................................................37
5.4 Brightness control ........................................................................................................38
5.5 Alarm tones..................................................................................................................38
5.6 Touch tone ...................................................................................................................39
5.7 Languages ...................................................................................................................39
5.8 Date, time and format...................................................................................................40
5.9 Monopolar modes ........................................................................................................40
5.10 Startup settings ..........................................................................................................41
5.11 Procedures.................................................................................................................41
5.12 Assigning foot switches..............................................................................................42
6 Safe use of neutral electrodes........................................................................................44
6.1 Split type and non-split type neutral electrodes and CQM...........................................44
6.2 Restriction to only split type neutral electrodes............................................................45
6.3 Safety feature for baby neutral electrodes ...................................................................46
6.4 Conditions of the CQM indicator ..................................................................................48
6.5 Selecting an appropriate neutral electrode ..................................................................49
6.6 Connection of a neutral electrode to the electrosurgical generator..............................49
6.7 CQM indicator verication............................................................................................51

7 Before use.........................................................................................................................52
7.1 Safety notes for before use ..........................................................................................52
7.2 Inspection before use...................................................................................................53
7.3 Overview of modes ......................................................................................................55
7.4 Description of modes ...................................................................................................55
7.5 Tissue effects depending on the power level and effect level......................................62
8 Use.....................................................................................................................................64
8.1 Safety notes for use .....................................................................................................64
8.2 Description of the output sockets.................................................................................65
8.3 Connection of instruments ...........................................................................................67
8.4 Selection of appropriate output settings.......................................................................67
8.5 Automatic instrument recognition.................................................................................69
8.6 Selecting a user-dened procedure .............................................................................71
8.7 Activation of HF output.................................................................................................71
8.8 Activating......................................................................................................................73
8.9 Alarm system ...............................................................................................................77
8.10 Troubleshooting..........................................................................................................78
9 After use ...........................................................................................................................83
10 Reprocessing of the ESG‑410.......................................................................................84
10.1 General information for reprocessing.........................................................................84
10.2 Cleaning.....................................................................................................................84
10.3 Disinfection.................................................................................................................84
10.4 Reprocessing of other HF equipment ........................................................................85
11 Maintenance ...................................................................................................................86
11.1 Regular safety checks................................................................................................86
11.2 Maintenance settings .................................................................................................87
12 Repair and shipment......................................................................................................92
12.1 Repair ........................................................................................................................92
12.2 Shipment....................................................................................................................92
13 Storage and disposal.....................................................................................................93
13.1 Storage.......................................................................................................................93
13.2 Disposal .....................................................................................................................93
14 Ordering information .....................................................................................................94
15 Compatible equipment ..................................................................................................95
15.1 System chart ..............................................................................................................95
15.2 Compatible neutral electrodes ...................................................................................96
15.3 Compatible foot switches ...........................................................................................98
16 Technical data ................................................................................................................99
16.1 Specications for the ESG-410..................................................................................99
16.2 Ambient conditions for operation, storage and transport ...........................................99
16.3 Plug requirements ...................................................................................................100
16.4 Resistance range for CQM.......................................................................................100
16.5 Specications for cables ..........................................................................................100
16.6 Specications for the USB ash drive......................................................................100
17 Additional information.................................................................................................101
17.1 Alarm system ...........................................................................................................101

17.2 Tone information ......................................................................................................102
17.3 Mode characteristics according to IEC 60601-2-2 ...................................................105
17.4 Characteristics of High Power Cut Support (HPCS) ................................................106
17.5 Output characteristic diagrams ................................................................................106
18 Electromagnetic compatibility....................................................................................133
19 Glossary........................................................................................................................136
20 Index..............................................................................................................................140

7
Using this document
1 Using this document
This chapter provides general information on how to use these instructions for use.
1.1 User instructions
Before use, thoroughly read these instructions for use and the instructions for use of all
other products that will be used during the procedure.
If the required instructions for use are missing, immediately contact an Olympus
representative.
Keep the instructions for use in a safe, accessible location.
1.2 Conventions throughout this document
Element Explanation
This is the safety alert symbol. It is used to alert the user to potential physical
injury hazards. Observe all safety messages that follow this symbol to avoid
possible injury.
This symbol indicates additional helpful information.
1.
2.
3.
A numeration indicates a sequence of actions.
●Bullet points indicate individual actions.
►Arrows indicate the results of actions.
–
–
–
Dashes indicate the listing of data, options or objects.
1)
2)
3)
Numbers with right parenthesis name elements in illustrations.
[...] Bracketed terms refer to elements in the graphical user interface or keys.
Elements in the graphical user interface can be:
- buttons
- menu items
- dialog elements
1.3 Safety‑related information in this document
For safe and efcient use of this product it is important to read the complete instructions for
use. The safety related information of these instructions for use is not only described in this
chapter. All information and instructions in this document are to ensure a safe and efcient
use.
Safety information are described in 3 categories:
‒General safety notes
‒ Specic safety notes
‒Safety messages

8
Using this document
1.3.1 General safety notes
General safety notes are located at the beginning of the instructions for use. They address
safety issues that apply to the general use and handling of the product.
1.3.2 Specic safety notes
Specic safety notes are located at the beginning of a chapter or section. They address
safety issues that are specic to the information and actions described in the chapter or
section.
1.3.3 Safety messages
Safety messages focus on unexpected incidents that can occur during the intended
use. They are placed in the context of such risks and actions. The safety messages are
highlighted by a signal word.
WARNING
Indicates a potentially hazardous situation which, if not avoided, can result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, can result in minor or
moderate injury.
NOTICE
Indicates a property damage message.

9
Safety information
2 Safety information
This chapter provides general safety information for using the product. The safety
information includes:
‒Intended purpose
‒Manufacturer information
‒General safety notes
2.1 Intended purpose
2.1.1 Intended use and indications
The electrosurgical generator, in conjunction with electrosurgical accessories and ancillary
equipment, is intended for cutting and coagulation of tissue in the following medical elds:
‒Open surgery
‒Laparoscopic surgery
‒ Endoscopic surgery
Only for use by a qualied physician in an adequate medical environment.
2.1.2 Contraindications
Absolute contraindications
There are no absolute contraindications.
Relative contraindications
At the discretion of the physician, electrosurgical procedures can be contraindicated under
the following circumstances:
‒If tissue coagulation and cutting can have a negative effect on the state of the patient.
‒For patients with implanted electronic devices, e.g. cardiac pacemaker, cardioverter
debrillators.
‒For patients with a weakened immune system.
‒For patients with blood coagulation disorders.
2.1.3 Patient target group
Not dedicated to a specic patient population. Patient target groups are dened by the
individual applicator used with the device.
2.1.4 Intended users
Medical use
Only for use by a qualied physician or medical personnel under the supervision of a
physician.
Only for use in an adequate medical environment.
These instructions for use do not explain or discuss clinical procedures.
Reprocessing
Reprocessing of reusable products may only be performed by qualied hygiene personnel.

10
Safety information
Repair
Repair of the product must only be performed by trained qualied servicing personnel that
has been authorized by Olympus. Otherwise, Olympus cannot be held responsible for the
safety and performance of the product.
Be aware that also fuses must only be changed by an authorized service center.
Installation and setup
The electrosurgical generator and its peripheral equipment must be properly installed and
set up by qualied personnel that has been authorized by Olympus.
Regular safety check
The regular safety check must only be performed by a qualied electrician with sufcient
experience in maintaining medical electrical devices.
The regular safety check must only be performed in a technical laboratory with appropriate
equipment.
Software update
Software updates must only be performed by qualied personnel.
2.1.5 Clinical benets
Clinical benets depend on the applied part used with the device.
2.2 Contact
2.2.1 Manufacturer
Olympus Winter & Ibe GmbH
Kuehnstr. 61
22045 Hamburg
Germany
Country-specic information
Refer to the contact information for customers included in the scope of delivery for country-
specic information.
2.2.2 Incident reporting
If a serious incident occurs with the device, report it to the manufacturer and/or the relevant
national authority according to national legislation.
2.3 General safety notes
The following safety information address points that apply to the general handling and use of
the product. This information is to be supplemented by the information given in each chapter
of this document.
Read all instructions for use thoroughly
Before use, read this instructions for use and the instructions for use for all other equipment
which will be used during the procedure.

11
Safety information
An insufcient understanding of the safety information in these instructions for use can result
in death, serious injury, or equipment damage.
Liquids and splashes
If liquids get into the electrosurgical generator, there is a risk of electric shock and damage
to the product.
Environmental conditions
Inappropriate environmental conditions during use, storage or transport can damage the
electrosurgical generator and its accessories.
Vibration and shocks
Vibrations and shocks during use, storage or transport can damage the electrosurgical
generator and its accessories.
Appropriate power supply and grounding
If the electrosurgical generator is improperly connected to the mains electricity there is a risk
of electric shock.
Potential equalization
The purpose of additional equipotential bonding is to equalize potentials between different
metal parts that can be touched simultaneously in the medical environment. Equipotential
bonding increases the electrical safety.
Compatible equipment
Using incompatible equipment can lead to excessive or incorrect HF output. This can result
in injury to the patient and the user as well as damage to the products.
Secure connection of the plugs
All plugs must be securely inserted to the corresponding sockets. Be aware that
the electrosurgical generator immediately turns off if the mains plug is accidentally
disconnected. During a procedure, this can result in complications for the patient.
If the foot switch plug is not connected securely, then the HF output may not be activated.
There is the risk that the HF instrument cuts tissue mechanically. This can result in bleeding
and perforation of the tissue.
Electromagnetic compatibility
During activation of the electrosurgical generator, high frequency signals or spark discharge
noise can disturb neighboring electrical equipment. Malfunction of the devices can occur,
e.g. the monitor of endoscopic imaging equipment can freeze or black out.
The precautionary measures are described in the chapter “18 Electromagnetic compatibility”
on page 133. Additionally, the instructions regarding installation and connection in the
following chapters must be observed.
Damaged equipment and accessories
The use of damaged equipment, of equipment with improper functioning or the reuse of
single use products can cause electric shock, mechanical injury, infection and thermal injury
to the patient and the user.
Procedural hazards and complications
If a malfunction of the electrosurgical generator occurs during the procedure, there is the
risk that the procedure is interrupted, delayed or cannot be completed. A prolonged use or
an energy dosage more than necessary can compromise the patient safety.

12
Safety information
Disconnection of cables
Tugging and pulling on the cables can break the electric circuit and can damage the
equipment.
Maintenance
To ensure electrical safety and to maintain device performance, Olympus recommends to
perform a safety check annually or according to national regulations and guidelines on all
medical electrical equipment.
Responsibility of the user
In electrosurgery, electric current is applied to a patient to modify, destroy, dissect or remove
tissue. This method bears certain risks for the patient, the operator and the assisting
medical personnel. It is important that all users are aware of such risks.
The information in the following sections summarize important basics and rules of
electrosurgery to remind the operator and the medical personnel of the associated risks.
This information is not meant to replace the fact that the all users need to have a profound
understanding of electrosurgical procedures.
2.3.1 Fire and explosion
Sparks that are generated in most electrosurgical procedures can ignite surroundings,
substances and materials. Fire and explosion can occur.
Flammable anesthetics and re supporting gases
Especially consider:
‒ Flammable anesthetics or oxidizing gases, e.g. nitrous oxide (N₂0) or oxygen
‒Volatile solvents, e.g. ether or alcohol
Flammable agents for cleaning and disinfection
Non-ammable agents should be used for cleaning and disinfection wherever possible. If
ammable agents are used, they should be allowed to evaporate before the application of
HF surgery. There is a risk of pooling of ammable solutions under the patient or in body
depressions such as the umbilicus, and in body cavities such as the vagina. Any uid pooled
in these areas should be mopped up before HF surgical equipment is used.
Flammable gases in the gastrointestinal tract/endogenous gases
When performing electrosurgery in the gastrointestinal tract, ammable gases can be
present in the intestines.
Attention should be called to the danger of ignition of any endogenous gases.
Flammable materials
An active electrosurgical instrument or an instrument that is still hot from use can cause re
when in contact with ammable materials, e.g. gauze, surgical drape or body hair.
2.3.2 Electrosurgical smoke
The thermal destruction of tissue creates a smoke by-product. This smoke can contain toxic
gases and vapors such as benzene, hydrogen cyanide, formaldehyde, bioaerosols, dead
and live cellular material (including blood fragments) and viruses.
‒At high concentrations the smoke causes ocular and upper respiratory tract irritation.
‒The smoke creates visual problems for the surgeon.
‒The smoke has been shown to have mutagenic potential.

13
Safety information
‒The smoke has unpleasant odors.
Olympus recommends to take adequate measures during the procedure to protect the
surgical staff from inhaling unltered smoke, e.g. by using smoke evacuators, sufcient
ventilation in the operating room or wearing surgical masks.
2.3.3 Effects of electric current on biological tissue
Electrolytic effect – undesired
When direct current (DC) is applied to biological tissue, spatial separation of positive and
negative ions occurs. This produces acids and bases at the electrode poles and results in
acid burns to the tissue. Therefore, only alternating current (AC) is used for electrosurgical
procedures.
Faradic effect or neuromuscular stimulation – undesired
Alternating current (AC) that is provided by the mains electricity has a frequency of
approximately 50 to 60 Hz. Electric current at such a frequency has undesired effects to the
human body like pain, nerve stimulation, muscle stimulation or cardiac arrest. As the human
body is less sensitive to current with high frequencies, electrosurgical generators transform
the low frequency AC provided by the mains electricity to high frequencies of above
300 kHz, i.e. high frequency current or HF current.
However, due to high current densities, low frequency currents can still arise when using an
electrosurgical generator. Reasons for this phenomenon are, e.g.:
‒Spark discharge to the tissue or to other metallic objects
‒High HF output settings
‒The use of modes with HPCS (High Power Cut Support), see the section “7.4
Description of modes” on page 55.
Therefore, its important to be aware that neuromuscular stimulation - which can cause pain
and discomfort to patients without sedation, pain medication or general anesthesia - can
occur during electrosurgery.
Thermal effect – desired
When the applied HF current ows through the tissue and needs to overcome its electric
resistance, heat is generated within the tissue. In other words, it is not the metal part of
the electrosurgical instrument that heats the tissue, it is the electric current that ows
within the tissue. This thermal effect of the electric current on tissue is used for cutting and
coagulating.
Depending on the specic resistance of different tissue types, the thermal effect varies. The
higher the tissue resistance is, the less amount of current can ow through the tissue and
the smaller the desired thermal effect is.
Basically, tissue that has a high water content has a low resistance and therefore the
thermal effect is high. Some examples of specic resistances in different tissue types:
‒ Muscle: 160 to 250 Ω/cm
‒ Blood: 160 to 300 Ω/cm
‒ Liver: 200 to 380 Ω/cm
‒ Brain: 670 to 700 Ω/cm
‒ Fat: 1,600 to 3,300 Ω/cm
‒ Skin: 11,000 Ω/cm
Compared to metals, e.g.:
‒ Copper: 0.0000017 Ω/cm

14
Safety information
‒ Silver: 0.0000016 Ω/cm
2.3.4 Electrosurgical effects – coagulation, cutting and carbonization
Coagulation
A temperature of 60 to 70 °C in the area around the active electrode gradually heats the
tissue cells until their intracellular uid escapes through the cell membranes. The results
are:
‒Protein denaturation
‒Shrinking of the cells
‒Shrinking of vessels
‒Clotting of blood
‒Hemostasis
Cutting
When the generated heat causes the intracellular uid to rapidly evaporate, then this
results in an explosive burst of the cell membrane. To achieve this, a very high voltage of
approximately 200 Vpis required. Such a high voltage generates sparks between the tissue
and the active electrode. These sparks concentrate the HF current to specic points of the
tissue that heats up to more than 100 °C. The fast repetition of this effect around the active
electrode determines the cut.
Principle of an electrosurgical cut
It is important to understand that the sparks are only able to ignite repetitively if the active
electrode is not in direct contact with the tissue.
The desirable side effect of electrosurgical cutting is the hemostasis of neighboring tissue
cells, as part of the heat is transferred to surrounding tissue where coagulation takes place.
Risk of mechanical injuries
To avoid the risk of mechanical cuts by the metallic tip, blade or snare of an HF instrument
it is important to keep in mind that it is the HF current that performs the desired cut. If too
much mechanical stress is applied to the target tissue, e.g. by a loop that is fastened to
strongly around the target tissue, then bleeding or perforation can occur.

15
Safety information
Carbonization – particularly undesirable
Carbonization is the overheating of desiccated tissue. The remains of the tissue cells are
reduced to carbon. Carbonization of tissue takes place from approximately 200 °C upwards.
It is important to understand that tissue carbonization must be avoided as it impairs the
wound healing.
2.3.5 The electric circuit
Three important rules of electricity
When working with electric energy the following 3 basic rules must be respected:
‒ Electric current needs a complete circuit to ow.
‒ Electric current is ‘lazy’ and prefers the path of least resistance.
‒ Electric current seeks ground.
The circuit of electrosurgical HF current
In electrosurgery the complete electric circuit consists of:
‒The electrosurgical generator
‒A monopolar or bipolar electrosurgical instrument for cutting or coagulation
‒ The patient’s target tissue
‒ For monopolar procedures: a neutral electrode
‒The connecting cables
2.3.6 Monopolar electrosurgery
In monopolar electrosurgery the HF current passes from the active electrosurgical
instrument through the patient to the neutral electrode and back to the electrosurgical
generator to complete the electric circuit.
High current densities and thermal effect at the instrument’s tip
The electrosurgical instrument usually has as pointed shape with a small surface. Therefore,
a high current density accumulates at the instrument’s tip which generates enough heat for
cutting or coagulating the target tissue.
Low current densities and thermal effect at the neutral electrode
The neutral electrode has a large surface so that the current is spread over a large area.
This reduces the current density and the heat. As the electric current always takes the
path of the lowest resistance, the neutral electrode ensures that the current returns to the
electrosurgical generator without causing overheating of tissue outside the surgical site.
ESG-410 UNIVERSAL 1 BIPOLAR
MONOPOLAR 1
MONOPOLAR 2
NEUTRAL
UNIVERSAL 2
SURGISABER

16
Safety information
The entire surface of the neutral electrode must be reliably attached to the prepared
patient’s skin, usually on the thigh.
Neutral electrodes
Wrong application, wrong size or malfunction of the neutral electrodes are the main causes
for endogenous burns.
●Observe the information in the chapter “6 Safe use of neutral electrodes” on page 44.
2.3.7 Bipolar electrosurgery
For surgical procedures where the HF current could ow through parts of the body that have
a relatively small cross sectional area, the use of bipolar techniques can be desirable to
avoid unwanted tissue damage.
In bipolar electrosurgery no neutral electrode is required. Bipolar electrosurgical instruments
are designed in a way that the current passes only between the 2 electrodes that are
implemented within the same device, e.g. between the jaws of a bipolar forceps.
In bipolar electrosurgery the current does not pass large areas of the patient’s body but only
through the tissue that is between the two electrodes within the electrosurgical instrument.
The bipolar technique makes electrosurgery much safer, because:
‒The current exposition to the patient is limited.
‒There is no risk of burns caused by the neutral electrode. Refer to the section “6 Safe
use of neutral electrodes” on page 44.
‒The risk of leakage currents is reduced. Refer to the section “2.3.9 Unintended current
ows” on page 17.
2.3.8 Implants
Electronic implants like cardioverter debrillators, cardiac pacemakers or cochlear implants
are very sensitive to electric energy. Therefore, electrosurgical procedures can interfere
with and can damage such devices. Also other electrically conductive implants like metal
implants present a hazard due to concentration or re-direction of HF currents. Qualied
advice should be obtained before the electrosurgical procedure.
ESG-410 UNIVERSAL 1 BIPOLAR
MONOPOLAR 1
MONOPOLAR 2
NEUTRAL
UNIVERSAL 2
SURGISABER

17
Safety information
2.3.9 Unintended current ows
Physiological monitoring equipment
When using physiological monitoring during an electrosurgical procedure, current can ow
to the monitoring electrodes. To prevent the risk of high current densities, the monitoring
electrodes need to be placed as far as possible from the surgical electrodes (instrument,
neutral electrode). Especially monitoring electrodes in form of needles bear a high risk of
burns at the site where the electrodes are attached. Therefore it is recommended to not use
needle monitoring electrodes. In any case it is recommended to use monitoring equipment
with HF current limiting measures.
Conductive uids within the patient
Conductive uids within the patient, like blood or saline, that are in direct contact with or in
close proximity to the active instrument can transmit electric current and heat to non-target
tissue. This can cause unintended burns to the patient.
Earth leakage currents
Unfortunately, alternating HF current techniques always correspond with a certain level of
earth leakage currents. Earth leakage currents are current ows that pass another pathway
than the initially intended electric circuit. A certain percentage of the current could pass
via the patient and the operating table or the surgeon and then via the ground back to the
electrosurgical generator. Earth leakage currents bear the risk of thermal tissue damages.
Olympus electrosurgical generators constantly monitor earth leakage currents and give an
acoustic and visual feedback if the earth leakage current exceeds a certain level. These
feedbacks make the physician aware that there is an increased risk of burns for the patient.
The user must not touch the patient and any contacts in the sockets simultaneously.
Capacitive coupling
Another phenomenon of electricity is that alternating HF current can pass from a conductive
material through an insulator into another nearby conductive material without the aid of wires
or cables. This can occur despite intact insulation surrounding the conductors and is called
capacitive coupling. So it is possible e.g. that the HF current passes via the insulation of an
active electrosurgical instrument to a metallic trocar which is in contact with some tissue in
the bowel. If the contact area is small so that the current density is high, then this can result
in a burn to the bowel tissue.
Capacitively coupled currents mainly occur in monopolar electrosurgery. They are also
called leakage currents or stray currents.

18
Safety information
Direct coupling
Direct coupling is the current ow directly from one conductor to another conductor. For
example, when an active electrosurgical instrument like a cutting electrode is in contact
with another metallic instrument, like a grasping forceps. Then current ows from the active
cutting electrode into the grasping forceps and the grasping forceps can cause burns to non-
target tissue.
For endoscopic surgery it is important to understand that the electrosurgical instrument must
only be activated when the conductive (non-insulated) part of the active electrode is in full
view.
Insulation failures
When the insulation of an electrosurgical instrument or of an HF cable is damaged the
electric current can pass another way than the intended way. If the insulation is damaged,
another metal instrument can be activated or non-target tissue inadvertently can be burned.

19
Product description
3 Product description
This chapter provides a general overview of the product and its functions. This includes the
following information:
‒Scope of delivery
‒Product functions
‒Operating elements
‒ Explanation of symbols and icons
‒Warranty information
3.1 Scope of delivery
Before use, check that all items listed below are available.
Contact an Olympus representative or an authorized service center if any items are missing
or damaged.
‒ 1 Electrosurgical generator ESG–410
‒1 Instructions for use, including contact information sheet for customers
‒ 1 Quick Reference Guide “Sockets and screens”
‒ 1 Quick Reference Guide “Foot switches, neutral electrodes and procedures”
‒ 1 Quick Reference Guide “Mode lookup table”
‒1 Maintenance Manual for the regular safety check
3.2 Product functions
3.2.1 Operating principles
The electrosurgical generator ESG-410 is designed to be used for the following
electrosurgical applications:
‒Bipolar electrosurgical cutting and coagulation.
‒Monopolar electrosurgical cutting and coagulation, which requires a neutral electrode.
The several cutting and coagulation modes are designed for procedures in open,
laparoscopic and endoscopic surgery. All settings of the device are selected via the
touchscreen on the front panel.
The ESG-410 is activated either via a compatible foot switch or via a hand switch at the
connected instrument.
The ESG-410 is connected to the local power supply.
Details on the hardware and software, on the correct handling and use of the device are
described in the following chapters.
3.2.2 Features
The electrosurgical generator is equipped with the following features:
‒Contact Quality Monitor (CQM)
‒High Power Cut Support (HPCS)

20
Product description
‒Fast Spark Monitor (FSM)
CQM – Contact Quality Monitoring for the neutral electrode
When using split type neutral electrodes for monopolar electrosurgery, the ESG-410 is able
to detect unintended detachment of the neutral electrode from the patient. The indicator for
the contact quality monitor (CQM) is green while the contact between the split type neutral
electrode and the skin of the patient is within an acceptable resistance range. If the contact
between the split type neutral electrode and the patient’s skin is insufcient, then an alarm
tone sounds, a warning message is displayed and the CQM indicator is red.
Using non-split type neutral electrodes is not as safe as using split type ones. CQM is not
able to detect any detachment of non-split type neutral electrodes from the patient.
For detailed information on the safe and correct use of neutral electrodes refer to the chapter
“6 Safe use of neutral electrodes” on page 44.
HPCS – High Power Cut Support
This feature optimizes the start of the cutting procedure for certain cutting modes. By
applying high power to the tissue, HPCS supports immediate spark ignition and reduces the
risk of mechanical cutting.
FSM – Fast Spark Monitor
When using cutting modes this feature ensures smooth and reproducible cutting although
the tissue characteristics are varying, e.g. in muscle and fat.