Electrosurgical devices

Nadiya-4 Electrosurgical Units for Cutting and Coagulation

The Units section includes high-frequency electrosurgical units and coagulators for professional use. The equipment is used for cutting, coagulation, and combined effects on soft tissues and blood vessels during surgical procedures.

The product range includes models with different power outputs, operating frequencies, and functional capabilities: from compact 50 and 120 series units to professional 200 and 300 series systems with monopolar, bipolar, and extended operating modes.

You can view the complete range of equipment and accessories in the Nadiya-4.com catalogue. Electrodes, forceps, holders, foot switches, and cables are available in the Instruments section.

How a High-Frequency Electrosurgical Unit Works

An electrosurgical unit generates high-frequency current and transfers it to the connected working instrument. The localized effect on tissue allows the operator to perform electrosurgical cutting, coagulation, or a combination of both effects, depending on the selected mode.

Depending on the model, the following functions may be available:

• monopolar cutting using active and neutral electrodes;
• monopolar coagulation for localized haemostasis;
• bipolar coagulation between the working tips of forceps or a clamp;
• blended cutting with a simultaneous coagulation effect;
• radio-wave modes in selected PX series modifications;
• resection, vaporization, and vessel sealing in functional RK and DFS models.

The exact list of modes, power ranges, and instrument connection requirements should be checked in the specifications and operating instructions for the selected model.

Electrosurgical Unit Models in the Catalogue

The available product range allows you to select a unit according to the typical procedures, required power output, activation method, operating frequency, and set of electrosurgical instruments.

120 Series — Compact Electrosurgical Units

The 120 series models are suitable for applications where the maximum power output of the higher series is not required. The catalogue includes:

• HFE-120 Nadiya-4 — the standard model in the series for cutting and coagulation;
• HFE-120PX-1.76 Nadiya-4 — a radio-wave modification with an operating frequency of 1.76 MHz;
• HFE-120PX-3.5 Nadiya-4 — a modification with an operating frequency of 3.5 MHz.

200 Series — Extended Cutting and Coagulation Capabilities

The 200 series units can be used for a wider range of surgical applications. Depending on the modification, they may differ in operating frequency, available modes, number of connections, and functional features.

• HFE-200 Nadiya-4 — a model with an output of up to 200 W, depending on the selected mode;
• HFE-200PX Nadiya-4 — a high-frequency modification of the 200 series;
• HFE-200 Nadiya-4, Model 200RK/DFS — a functional model with touchscreen control, programmable profiles, and an extended range of operating modes.

The 200RK/DFS model supports monopolar and bipolar modes, as well as dedicated cutting, coagulation, and tissue-sealing functions. Before ordering, check which instruments are required for the selected modes.

300 Series — Higher-Power Electrosurgical Units

The 300 series includes electrosurgical units for facilities that require higher output power, various monopolar and bipolar operating options, and the ability to create an extended configuration.

• HFE-300 Nadiya-4 — the standard model in the 300 series;
• HFE-300RK Nadiya-4 — a functional model for use with monopolar and bipolar instruments;
• HFE-300RK-4.2 Nadiya-4 — a professional modification with touchscreen control, programmable profiles, and extended operating modes.

Model 50PX Nadiya-2

The category also includes the HFEA-350M/120B Nadiya-2, Model 50PX. This is a compact model from the previous product line and should be considered separately from the Nadiya-4 units.

Before selecting Model 50PX, we recommend comparing its output power, operating frequency, available modes, and delivery set with the current 120, 200, and 300 series models.

How to Choose an Electrosurgical Unit

Selecting an electrosurgical unit should not be based solely on its maximum output power. It is important to consider all parameters of the future system, from typical procedures to connector and instrument compatibility.

Before ordering, we recommend determining:

• Field of application. Which surgical interventions and procedures will be performed.
• Required power output. It should correspond to the typical procedures and expected workload.
• Operating modes. Cutting, blended cutting, monopolar or bipolar coagulation, resection, or sealing.
• Operating frequency. This is particularly important when selecting a 120PX model.
• Activation method. A foot switch or buttons on a compatible electrode holder, depending on the model.
• Required instruments. Monopolar electrodes, bipolar forceps, holders, cables, and a neutral electrode.
• Standard configuration. The contents may vary depending on the model and order.
• Intensity of use. For regular use, a model with extended operating modes and programmable profiles may be appropriate.

The Nadiya-4.com specialists will help you compare models, clarify the available modes, and prepare a configuration that meets the needs of your medical facility.

Monopolar and Bipolar Modes

In monopolar mode, the electrosurgical current passes between the active instrument and the neutral electrode. The neutral electrode must be positioned correctly, and all connections must be checked before use.

In bipolar mode, the effect occurs between the two working tips of forceps or another bipolar instrument. This circuit does not require a neutral electrode specifically for bipolar coagulation.

Not all modes and instruments are available for every model. Compatibility can be checked on the product page or by contacting a specialist.

Instruments and Standard Configuration

Depending on the model, the standard electrosurgical unit configuration may include:

• an electronic unit;
• a foot switch;
• a neutral electrode;
• a monopolar electrode holder;
• a bipolar instrument holder;
• bipolar forceps;
• interchangeable electrodes;
• cables and connecting components;
• a product passport or operating manual;
• packaging.

The exact delivery set is specified on the product page, invoice, specification, or accompanying documentation. Additional electrosurgical instruments and accessories can be ordered separately.

Facilities Where Electrosurgical Units Can Be Used

Depending on the model, available modes, and configuration, high-frequency electrosurgical units can be used in:

• hospital operating departments;
• private medical centres;
• surgical and specialized treatment rooms;
• outpatient medical facilities;
• clinics performing surgical procedures and interventions on animals;
• educational and research institutions with appropriately equipped premises.

The selected model must correspond to the intended application, the qualifications of the personnel, and the requirements stated in the operating manual.

Safe Operation of the Equipment

Before first use, carefully read the official operating instructions for the selected model. The unit should be operated only by trained specialists who understand the principles of high-frequency electrosurgery.

Before each procedure, check:

• the integrity of the unit housing;
• the condition of cables and connectors;
• the insulation of electrodes and instruments;
• the correct connection of the foot switch;
• the condition and placement of the neutral electrode;
• whether the selected mode is suitable for the connected instrument.

Do not use the unit or instruments if the housing, cable, connector, or insulation is damaged.

Warranty, Service, and Delivery

Electrosurgical units are covered by the standard manufacturer’s warranty. The exact warranty period and conditions are specified in the documentation supplied with the relevant model.

If technical questions arise, the Nadiya-4.com specialists will provide an initial consultation and, when necessary, assist with arranging warranty or post-warranty service.

Items that are in stock are dispatched across Ukraine within 1–3 business days after payment has been credited and the order has been confirmed. Detailed terms are available on the Delivery and Payment page.

Frequently Asked Questions

Buy a Nadiya-4 Electrosurgical Unit

Not sure which model will meet the needs of your facility? Contact the Nadiya-4.com specialists and provide information about the intended application, required modes, approximate power output, and the list of required instruments.

We will help you compare electrosurgical units, check instrument compatibility, prepare the appropriate configuration and documentation, and arrange delivery across Ukraine.