Domain Surgical is now an OmniGuide company.
This merger allows us to bring ferromagnetic surgical technology to more surgeons and patients. Read more.

Surgical precision. Electrical silence.
Domain Surgical’s FMX™ Ferromagnetic Surgical System is an intelligent surgical platform that uses ferromagnetic technology to precisely cut, coagulate, and seal tissue; with a fraction of tissue injury compared to other surgical technologies, and without passing electrical current through the patient.
FMX Generator
The FMX Generator intelligently manages all aspects of energy, ensuring that the optimal amount of heat is delivered to the tissue at all times. Learn more about the FMX Generator.
FMX Surgical Instruments
A variety of dissection and vessel sealing instruments have been developed for use in both open and laparoscopic surgical procedures. View FMX surgical instruments.
FMX Power Modules
FMX Power Modules connect FMX surgical instruments to the generator and manage communication between each component. Learn more about FMX Power Modules.
FMX Generator
The FMX Generator intelligently manages all aspects of energy, ensuring that the optimal amount of heat is delivered to the tissue at all times.
The FMX Generator intelligently delivers electrical energy to the surgical instruments. The advanced generator features a patented software control algorithm that continuously monitors and adjusts the delivery of energy, ensuring that the optimal amount of heat is delivered to the tissue at all times. The large touchscreen display provides the entire surgical team immediate feedback on power setting levels and changing settings is as easy as touching the display. The FMX Generator has earned the Type CF (“Cardiac Floating”) rating.
Watch a brief video of how to setup the FMX Generator with FMX Surgical Instruments below.
Related Downloads
FMX Generator Technical Specifications
Operating Environment Conditions | Temp: 10° to 30° C (50° to 86° F) Humidity: 15% to 85% Non-condensing |
Storage Conditions | Temp: -20° to 65° C (-4° to 149° F) Humidity: 15% to 85% Non-condensing |
Shipping Conditions | Temp: -20° to 65° C (-4° to 149° F) Humidity: 15% to 85% Non-condensing |
Moisture Protection | Generator: IPX1 Foot Pedal: IPX7 minimum |
Generator Dimensions | 14″ x 4″ x 12″ 35.6 cm x 10.2 cm x 30.5 cm |
Generator Weight | Approximately 20 lbs. (9 kg) |
Power Requirements | Voltage: 110/220/230 Vac Current: 4/2A rms max Frequency: 50/60 Hz |
Power Output | 60W Max |
Fuses | For 110V: T 5A L 250V For 220V/230V: T 2.5A L 250V |
Operating Frequency | 40.68 MHz |
Mode of Operation | Intermittent Operation 10 sec. ON, 30 sec. OFF |
Protection Class | Class I |
Output Type | Type CF |
FMX Surgical Instruments
A variety of dissection and vessel sealing instruments have been developed for use in both open and laparoscopic surgical procedures.FMwand Dissector
FMwand is a thermal dissection instrument that precisely cuts and coagulates with less tissue injury compared to traditional technologies, without passing electrical current through the patient.
FMsealer Open Shears
FMsealer Open Shears reliably seal and transect vessels and vascular tissue bundles with a pure thermal effect. FMsealer Open Shears are indicated for sealing lymphatics and vessels up to 7mm in diameter in open procedures.
FMsealer Laparoscopic Shears
FMsealer Laparoscopic Shears provide surgeons with precise control of thermal effect for fast, reliable sealing and transection of vessels and vascular tissue bundles. FMsealer Laparoscopic Shears are indicated for sealing of lymphatics and vessels up to 7mm in diameter in open and laparoscopic procedures.
FMX Power Modules
FMX Power Modules connect FMX surgical instruments to the generator and manage communication between each component.FMX Power Modules FMX Power Modules are available in both reusable and single-use disposable configurations. The FMX Reusable Power Module (left) can be autoclave resterilized for use in up to 100 procedures, providing a cost-effective option for the hospital. The FMX Disposable Power Module (right) is single-use only and is discarded following each surgical procedure.
Related Downloads

How FMX Technology Works
FMX ferromagnetic technology creates a localized layer of heat around the tip of each surgical instrument, which provides a uniform thermal tissue effect when cutting, coagulating, and sealing tissue.
The active surface of each FMX surgical instrument is plated with a thin ferromagnetic coating. When the instrument is activated, the FMX generator passes high frequency electrical energy through the ferromagnetic coating and back to the generator, creating a rapidly alternating magnetic field within the coating.

The coating instantly reacts to the alternating magnetic field, producing uniform heat throughout the coated area. When in contact with tissue, this uniform heat precisely cuts, coagulates, and seals with minimal collateral thermal injury.

FMX surgical instruments are electrically silent; meaning that the electrical energy delivered to each instrument returns to ground through the generator and does not pass through the tissue. No grounding pad is used, and there is no spark, arcing, or stray current that can injure delicate structures.
Because heat is generated only in the area plated with the ferromagnetic coating, FMX surgical instruments activate instantly and cool down in seconds. FMX technology provides extremely precise and predictable control of thermal effect and reduces thermal injury to deeper tissue and surrounding structures; while eliminating the passage of potentially dangerous electrical current through the patient.
Setup is Incredibly Simple
The FMX Ferromagnetic Surgical System combines state-of-the-art surgical technology with unparalleled ease-of-use. Prepare FMX instruments for use by following these simple steps:
1

Plug the FMX Power Module into the front panel of the FMX Generator
2

Snap the power module into the back of the FMX instrument
3

Set the power settings on the generator and the system is ready
FMX Technology in Action
The FMX system has been successfully used in thousands of procedures across numerous surgical specialties including cardiothoracic, head & neck, surgical oncology, and more. Click on any of the videos below to watch FMX technology in action. View All Surgery Videos






































Need More Information?
Our customer service team is available to answer any questions that you may have, or to schedule an in-office demonstration of our advanced-energy surgical technologies.