Force EZ^TM Electrosurgical Generator with Instant Response^TMTechnology

Instant Response^TM Technology
Instant Response technology provides surgeons with improved performance or lower power settings, minimizing the risk of tissue damage and neuromuscular stimulation, and decreasing the need to “turn up the generator.”

A Smoother Cut Through All Tissue Types
The Force EZ generator adjusts automatically, responding to tissue changes, maintaining power delivery, and minimizing drag.

Added Safety and Reliability Minimizes Electrosurgical Risks
Capacitive coupling is reduced by 30-50% 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.

What is Instant Response Technology?
Instant Response technology features an advanced feedback system that recognizes changes in tissue 200 times per second, and adjusts voltage and current accordingly to maintain appropriate power. This unique capability differentiates Instant Response generators from any other, as shown by their high power efficiency rating (PER). That’s smart generator technology.

PER indicates the ability of a generator to accurately deliver the selected power into a wide range of tissue types. With a PER of 97, the Force EZ generator provides a consistent surgical effect.

Instant Response technology provides consistent power through different tissue types.

The Force EZ generator provides surgeons with the advantage of accurately delivering the selected power setting, even through resistant tissue. The power curve below illustrates the Force EZ generator’s consistent output.

When a conventional generator encounters tissue changes, both power delivery and cutting efficiency are reduced. This means that higher power settings are required in order to cut through all types of tissue. With higher power setting, more energy is delivered and tissue damaging increases.

FEATURES

Instant Response technology ensures that the power delivered remains virtually constant, regardless of the tissue type
Improved performance at lower power settings minimizes the risk of tissue damage and neuromuscular stimulation
Three internal microcontrollers reduce system reaction time and increase the system’s processing speed
Easy to use, cost effective system when performance is required and price is of equal concern
A Power Efficiency Rating (PER) of approximately 97 for accurate and consistent cut performance
Two cut modes, both controlled by Instant Response technology, offer surgeons a variety of choices
- Pure Cut for a clean, precise cut
- Blend for cutting with hemostatsis
Two primary coag modes
- Low for lower voltage contact coagulation suitable in laparoscopic and delicate tissue work
- High for efficient noncontact coagulation in most applications
Standard bipolar mode
- Standard mode is controlled by Instant Response technology and utilizes low voltage to prevent sparking
Versatile system that is uniquely compatible with other devices, including:
- Force Argon II^TM and Force GSU argon coagulation system
- OptiMumm^TM smoke evacuator, through a direct cable link
Separate monopolar and bipolar footswitch connectors on rear panel for easy set up
Convenient design for boom applications
- Additional front mounted footswitch connector is switchable, allowing monopolar or bipolar activation from a monopolar footswitch

Technical Specifications

Output Waveforms

Bipolar: 470 kHz sinusoid
Monopolar Cut
- Pure: 393 kHz sinusoid
- Blend: 393 kHz bursts of sinusoid, recurring at 27 kHz intervals. 50% duty cycle envelope
Monopolar Coag
- Desiccation:
  - Low 1: 240 +/- 40 kHz sinusoid recurring at 39 kHz. 8% duty cycle
  - Low 2: 393 kHz sinusoid
  - Low 3: 393 kHz sinusoid
- Fulguration:
  - High 1: 470 +/- 40 kHz damped sinusoidal bursts with a repetition frequency of 57 kHz
  - High 2: 470 +/- 40 kHz damped sinusoidal bursts with a repetition frequency of 30 kHz

Output power changes by less than 15% or 5 watts, whichever is greater, as the line voltage varies from 90-135 volts (into a 300 ohm load).

Low Frequency Leakage (50-60 Hz)
Source current, patient leads, all outputs tied together

Normal polarity, intact chassis ground: < 10µA
Normal polarity, ground open: < 50µA
Reverse polarity, ground open: < 50µA
Sink current, 140V applied, all inputs: < 50µA

Power Readouts
Agree with actual power into rated load to within +/- 15% or 5 watts, whichever is greater. Dosage error monitor

PER = 97
PER (Power Efficiency Rating) is the measure of an electrosurgical generator’s ability to accurately deliver the selected power into a wide range of tissue types.

Weight and Dimensions

Height: 12.7 cm (5 in.)
Width: 40.6 cm (16 in.)
Length: 39.5 cm (15.6 in.)
Weight: < 6.8 kg (,15 lbs)

Input Power Requirements

110-120Vac:
- Operating Range: 85-140Vac
- Max Current Cut: 8A
- Max Current Coag: 4.2A
220-240Vac:
- Operating Range: 170-280Vac
- Max Current Cut: 4A
- Max Current Coag: 2.1A

High Frequency Leakage

Bipolar: Less than 60 mArms
Monopolar: Less than 150 mArms

REM^TM 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
- Acceptance range is 5-135 ohms after 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.

Output Characteristics

Bipolar – Standard Mode
- Maximum P-P Voltage: 300
- Rated Load (OHMS): 100
- Maximum Power (Watts): 70
- Crest Factor (Typical): 1.5
Monopolar Cut – Pure Mode
- Maximum P-P Voltage: 2000
- Rated Load (OHMS): 300
- Maximum Power (Watts): 300
- Crest Factor (Typical): 1.5
Monopolar Cut – Blend Mode
- Maximum P-P Voltage: 3400
- Rated Load (OHMS): 300
- Maximum Power (Watts): 200
- Crest Factor (Typical): 2.1
Monopolar Coag – Desiccate Low 1 Mode
- Maximum P-P Voltage: 3500
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor (Typical): 5.0
Monopolar Coag – Desiccate Low 2 Mode
- Maximum P-P Voltage: 660
- Rated Load (OHMS): 300
- Maximum Power (Watts): 120
- Crest Factor (Typical): 1.5
Monopolar Coag – Desiccate Low 3 Mode
- Maximum P-P Voltage: 1100
- Rated Load (OHMS): 300
- Maximum Power (Watts): 120
- Crest Factor (Typical): 1.5
Monopolar Coag – Fulgurate High 1 Mode
- Maximum P-P Voltage: 6200
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor (Typical): 5.0
Monopolar Coag – Fulgurate High 2 Mode
- Maximum P-P Voltage: 8500
- Rated Load (OHMS): 500
- Maximum Power (Watts): 120
- Crest Factor (Typical): 7.0

Electrosurgical Units

ESUs