Adaptive Technologies

Vessel Sealing Technology™

Vessel sealing technology™ is an electrosurgical technology that combines pressure
and energy to create a seal.

• Reliable, consistent permanent vessel wall fusion
• Minimal thermal spread
• Reduced sticking and charring
• Seal strength higher than other energy-based techniques
• Seal strengths comparable to existing mechanical based techniques

A specialized generator/instrument system has been developed that is designed to reliably seal vessels and tissue bundles for surgical ligation both in laparoscopic and open surgery applications. It applies a unique form of bipolar electrosurgery in combination with optimal pressure delivery by the instruments in order to fuse the vessel walls and create a permanent seal.

The output is feedback-controlled so that a reliable seal is achieved in minimal time, independent of the type or amount of tissue in the jaws. The result is reliable seals on vessels up to and including 7 mm in diameter or tissue bundles with a single activation. The thermal spread is significantly reduced compared to traditional bipolar systems and is comparable to ultrasonic coagulation. The seal site is often translucent, allowing evaluation of hemostasis prior to cutting. Seal strengths are comparable to mechanical ligation techniques such as sutures and clips and are significantly stronger than other energy-based techniques such as standard bipolar or ultrasonic coagulation. The seals have been proven to withstand more than three times normal systolic blood pressure.

Bipolar-type Generator

• Low Voltage — 180V
• High Amperage — 4A
• Tissue Response

Instruments

• Precisely calibrated
• High pressure
• Open/laparoscopic

System Operation

• Applies optimal pressure to vessel/tissue bundle
• Energy delivery cycle:
  • Measures initial resistance of tissue and chooses appropriate energy settings
  • Delivers pulsed energy with continuous feedback control
• Pulses adapt as the cycle progresses
  • Senses that tissue response is complete and stops the cycle

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