The Microwave Endometrial Ablation (MEA) System is a surgical device that uses microwave energy to treat excessive menstrual bleeding by destroying tissue lining the uterus (womb).

Endometrial ablation is a minimally invasive surgery that can be a viable alternative to hysterectomy.


Microwave Heating Effect:

– Microwaves heat tissue:

  • Depth of absorption is limited and controllable
  • Selected to be 3mm for MEA

– Heating occurs to a depth of 5-6mm through thermal conduction

– Temperatures achieve coagulation but are not sufficient to physically remove tissue

MEA thermal mechanism:

– Microwaves penetrate up to 3mm into the tissue

– Microwave energy interacts with the water molecules in the tissue causing them to vibrate at the microwave frequency and heat rapidly

  • Rapid tissue heating in first 2-3mm of tissue
  • Thermal conduction beyond for a further 2-3mm
  • Peripheral blood perfusion prevents further thermal conduction beyond 5-6mm
  • Optimal therapeutic temperature throughout the cavity