Simultaneous Coag; Rem Contact Quality Monitoring System; How The Rem System Works - Covidien Force FX-C User Manual

REM Contact Quality Monitoring System

Simultaneous Coag

When you simultaneously activate two monopolar instruments for coag output, each
receives a percentage of the power setting set for the selected mode. The amount of
power each instrument receives depends on the tissue resistance sensed by the generator
at each surgical site. Generally, the site with lower resistance receives proportionately
more power. The combined total output power does not exceed the coag power setting.
You can also use a CUSA handpiece with a CEM nosecone for simultaneous coag when
you connect a monopolar instrument to the Monopolar 2 Instrument receptacle. Only
Desiccate coag is available; the maximum power is 70 watts.
REM Contact Quality Monitoring System
During monopolar electrosurgery, a patient return electrode is always required to safely
recover the current that flows through the patient's body and return it to the generator.
A reduction in surface area contact or poor conductivity between the patient and the
return electrode can cause the current to become concentrated, potentially resulting in
burns at the return electrode site.
The Force FX-C generator uses the REM Contact Quality Monitoring System to monitor
the quality of electrical contact between the patient return electrode and the patient. The
TM
REM
a reduction in patient contact area during monopolar electrosurgery. Use of any return
electrode other than a REM Polyhesive
REM safety feature. This could result in a patient burn.

How the REM System Works

The REM system continuously measures the resistance at the return electrode site and
compares it to a standard range of safe resistance (between 5 and 135 ohms), thus
eliminating intermittent false alarms that could result from small changes in resistance.
The REM system also adapts to individual patients by measuring the initial contact
resistance between the patient and the patient return electrode.
A REM alarm sounds and the generator stops producing output power when either of
the following occurs:
• The measured resistance is below 5 ohms or above 135 ohms, the limits of the
standard range of safe resistance.
• An increase in contact resistance is greater than 40% from the initial measurement.
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system is designed to minimize the risk of burns at the return electrode site due to
TM patient return electrode may compromise the
Force FX Electrosurgical Generator C User's Guide