Covidien/ValleyLab Force FX Electrosurgical Unit
The Valleylab Force FX™ stands out as an electrosurgical generator with isolated output, designed specifically to offer the precision needed for cutting, desiccating, and fulgurating tissues during surgical procedures. This versatile generator is suitable for both bipolar and monopolar electrosurgical operations.
Activation can be initiated through either handset or footswitch controls, ensuring flexibility based on the surgeon’s preference. The generator is designed with clearly marked receptacles to guarantee that accessories are connected correctly, eliminating any potential confusion. When the generator is in operation, specific indicators illuminate to keep the user informed.
One of the highlights of the Force FX™ is its user-friendly features, such as the ability to modulate the activation tone volume and recall previously used mode and power settings. It also boasts advanced ports including an RF activation port, an RS-232 serial port, and an expansion port to enhance its functionality.
For an integrated surgical solution, the Force FX™ is compatible with the Valleylab Force GSU System and the Valleylab Electroshield Monitor. For detailed usage and safety guidelines of these complementary devices, users should consult the respective product manuals.
The Force FX™ is equipped with Instant Response technology, a revolutionary feature that enhances the device's performance at reduced power settings. This not only lessens the probability of harming tissues but also decreases the likelihood of neuromuscular stimulation. Consequently, there's a diminished necessity to amplify the generator.
This advanced technology enables the Force FX™ to adapt swiftly, offering a consistent and smooth cut across diverse tissue types. As the unit encounters changes in tissue, it auto-adjusts, ensuring constant power delivery while minimizing resistance.
Safety and reliability get a significant boost with the Force FX™. When employing Instant Response™ technology, capacitive coupling experiences a reduction of between 30-50%. This reduction is achieved by curtailing the RMS voltage and suppressing high-frequency harmonics. With a decreased voltage output, the device ensures precise energy delivery with minimized neuromuscular stimulation, leading to reduced inadvertent tissue damage.
Specifications:
Output Waveforms & Output Characteristics
Bipolar:
- Precise Mode:
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- Maximum P-P Voltage: 450
- Rated Load (OHMS): 100
- Maximum Power (Watts): 70
- Crest Factor* (Typical): 1.5
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- Standard Mode:
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- Maximum P-P Voltage: 320
- Rated Load (OHMS): 100
- Maximum Power (Watts): 70
- Crest Factor* (Typical): 1.5
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- Macro Mode:
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- Maximum P-P Voltage: 750
- Rated Load (OHMS): 100
- Maximum Power (Watts): 70
- Crest Factor* (Typical): 1.5
Monopolar Coag:
- Desiccate Mode:
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- Maximum P-P Voltage: 3500
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor* (Typical): 5
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- Fulg. High Crest Factor Mode:
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- Maximum P-P Voltage: 8500
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor* (Typical): 7.0
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- Fulg. Low Crest Factor Mode:
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- Maximum P-P Voltage: 6900
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor* (Typical): 5.5
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- Spray Mode:
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- Maximum P-P Voltage: 9000
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor* (Typical): 8
CEM™ Mode
- Monopolar Cut (Low):
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- Maximum P-P Voltage: 1000
- Rated Load (OHMS): 300
- Maximum Power (Watts): 100
- Crest Factor* (Typical): 1.5
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- Monopolar Coag (Dessicate):
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- Maximum P-P Voltage: 3500
- Rated Load (OHMS): 500
- Maximum Power (Watts): 70
- Crest Factor* (Typical): 5
*Crest Factor is an indicator of a waveform’s ability to coagulate without cutting.
Waveform Frequencies
- Bipolar: 470 kHz sinusoid (For Precise, Standard, Macro)
- Monopolar Cut:
- Low: 390 kHz sinusoid (Similar to Pure Cut mode but with a max voltage limit)
- Pure: 390 kHz sinusoid
- Blend: 390 kHz bursts at 27 kHz intervals, 50% duty cycle
- Monopolar Coag:
- Desiccate: 240 kHz sinusoid at 39 kHz, 8% duty cycle
- Fulgurate: 390 kHz damped sinusoid bursts (30 or 57 kHz into 500 ohms)
- Spray: 390 kHz damped sinusoidal bursts centered at 28 kHz
Performance Stability
- Output power changes by less than 15% or 5 watts (whichever is greater) as line voltage varies from 104-132 volts and 208-264 volts (at rated load).
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
- High Frequency Leakage: Bipolar - Less than 60 mA (rms), Monopolar - Less than 150 mA (rms)
- Adaptive REM™: If pad-patient impedance falls below the baseline impedance, a new baseline is established.
- Low Frequency Leakage (50-60 Hz) - less than specific mentioned values under various conditions.
Low Frequency Leakage (50-60 Hz):
- Source current, patient leads, all outputs tied together:
- Normal polarity, intact chassis ground: <10 µA
- Normal polarity, ground open: < 50 µA
- Reverse polarity, ground open: < 50 µA
- Sink current, 140V applied, all inputs: < 50 µA
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