Tissue is heated quickly, less thermal damage/coagulation
Monopolar voltage/frequency
Low voltage/High frequency
,What does coagulation mode do?
Repid surface heating with shallow depth of necrosis,
intermittent wave form with higher voltage
Risk of monopolar
Current can be diverted through unintentional pathways,
leading to inadvertent tissue injury. Don't use hybrid ports
that mix metal with plastic
,Why do you need a grounding pad for monopolar?
Capacitative coupling - transfer of energy between two
conductors separated by an insulator, transfer to passive
electrode. Can release with tissue injury, but no issue if
ground plate is working as capacitor can't store the
charge
Benefits of bipolar
lower energy, producing less lateral tissue damage and
necrosis. Don't need a grounding pad
, Risk of bipolar
Risk of cutting patient vessels before adequate sealing,
and device doesn't work if there is metal between the jaws
Risk of ultrasonic dissection (harmonic)
Active blade can injure something due to high frequency
(50mHz)