Covidien Valleylab Force FX

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Covidien Force FX Features

The Covidien Force FX is a high-power digital electrosurgical unit. This Valleylab ESU features computer-controlled instant response technology that ensures a consistent clinical effect through all tissue types. This instant response technology recognizes changes in tissue 200 times per second and adjusts voltage and current to maintain the proper power. The Valleylab Force FX enables the use of handset or footswitch controls to activate the generator. It provides surgeons with the advantage of accurately delivering the selected power setting, even though resistant tissues.

  • Instant Response technology ensures the power delivered remains virtually constant, regardless of the tissue type.
  • Three internal microcontrollers reduce system reaction time and increase the system’s processing speed.
  • Capacitive coupling is reduced by 30-50 percent when using Instant Response technology. This reduction is achieved by limiting the RMS voltage and the high-frequency harmonics. Lower voltage means less neuromuscular stimulation and more precise delivery of energy to reduce collateral damage.
  • Spray coagulation voltage of no more than 9000 volts for broad, but superficial coagulation with limited capacitive coupling.
  • Compatible with the exclusive Computer Motion Hermes Voice Command System.

Covidien Force FX Specifications


  • Height: 4.38” (11.1 cm)
  • Width: 14” (35.6 cm)
  • Depth: 17” (43.9 cm)
  • Weight: < 18 lb (< 8.1 kg)


  • PER: 98
  • Input Power Requirements: The operating range is 85 to 132 AC volts. The maximum current is 7 amperes in Cut and 4 amperes in Coag.
  • High Frequency Leakage
    • Bipolar: Less than 60 mArms
    • Monopolar: Less than 150 mArms

Output Waveforms

  • Bipolar
    • Precise: 470 kHz sinusoid
    • Standard: 470 kHz sinusoid
    • Macro: 470 kHz sinusoid
  • Monopolar Cut
    • Low: 390 kHz sinusoid. Similar to the Pure Cut mode except the maximum voltage is limited to a lower value.
    • Pure: 390 kHz sinusoid
    • Blend 390 kHz bursts of the sinusoid, recurring at 27 kHz intervals. 50% duty cycle envelope.
  • Monopolar Coag
    • Desiccate: 240 kHz sinusoid repeated at 39 kHz. 8% duty cycle.
    • Fulgurate: 390 kHz damped sinusoidal bursts with a repetition frequency of 30 or 57 kHz into 500 ohms
    • Spray: 390 kHz damped sinusoidal bursts with a randomized repetition centered at 28 kHz. Frequencies include 21kHz < f < 35 kHz. Output is further modulated by a random 250 Hz envelope with a variable duty cycle. Output power changes by less than 15% or 5 watts, whichever is greater, as the line voltage varies from 104-132 volts and 208-264 volts (at rated load)

Operating Parameters

    • Ambient Temperature Range: 10° to 40° C (50° to 104° F)
    • Relative Humidity: 30 % to 75%, non-condensing

Atmospheric pressure: 700 to 1060 millibars

  • Warm-up time: If transported or stored at temperatures outside the operating temperature range, allow one hour for the generator to reach room temperature before use.


Transport and Storage

  • Ambient Temperature range: -40° to 70° C (-40° to 158°F)
  • Relative humidity: 25% to 85% non-condensing
  • Atmospheric Pressure: 500 to 1060 minibars

REM Contact Quality Monitoring System

  • Measurement Frequency: 80 kHz ± 10 kHz
  • Measurement Current: Less than 10 µA
  • Acceptable Resistance Ranges: REM pad — 5-135 ohms; Non-REM pad — less than 20 ohms
  • The acceptance range is 5-135 ohms after the REM PolyHesive II return electrode is applied.
  • Adaptive REM: REM trip is baseline impedance plus 40%. For example, if the baseline impedance is 30 ohms, the upper-level trip is approximately 42 ohms. If the pad-patient impedance falls below the baseline impedance, a new baseline is established.


Refurbished Covidien Force FX

Soma Tech Intl offers the FX Covidien Electrosurgical Units up to 50% below OEM prices with the same service and warranty as new. Soma technically and cosmetically refurbishes these electrosurgical units back to the original engineering manufacturer’s specifications. Using highly skilled, trained, and certified in-house biomedical engineers these units are fully tested, disassembled, and if necessary, parts are replaced. Once all the parts of the Covidien generator are in working order, the electrosurgical unit is calibrated back to OEM specifications, to make sure it works exactly the way it did when it originally left the manufacturer. Soma Tech Intl not only refurbished the product, but each unit also goes through a Special cosmetic restoration process. The Force ESU is cleaned and minor scratches and dentures are repaired, and decals are replaced if necessary.

Soma Tech Intl also purchases used and pre-owned electrosurgical units. If you or your facility wants to sell your Force FX, Soma Tech Intl has an experienced purchasing department that makes the process headache and hassle-free. When selling your electrosurgical units to Soma, there is no need for a middle man, it is a direct transaction to Soma which ensures that you get top dollar for your medical equipment. Soma Tech Intl not only buys electrosurgical units but a wide variety of different medical equipment as well if your medical facility is looking to free up space. If you have medical equipment you would like to sell to Soma, send us a message here!


Questions about our Electrosurgical Units?

Soma Tech Intl offers a wide range of electrosurgical units. If you have any questions about any of our electrosurgical units or need a quick quote, call us and one of our knowledgeable sales representatives will help you.

Looking to sell your electrosurgical units? Soma ensures your facility gets top dollar for your equipment and also gives the option for trade-in credit.

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