Design hazards of electrosurgical devices

Area of Science:

• Medical Engineering
• Surgical Technology
• Patient Safety

Background:

• Electrosurgery is a critical medical tool with significant lifesaving value.
• However, its use is associated with potential hazards including radio-frequency burns, shock, electrocution, and explosions.
• These risks can stem from equipment design, potential failure modes, or operator error.

Purpose of the Study:

• To describe current electrosurgery systems and their associated hazard potentials.
• To propose a novel safety system designed to minimize electrosurgical hazards.
• To recommend performance standards for electrosurgical circuits and evaluate existing standards.

Main Methods:

• Analysis and classification of electrosurgery hazards (radio-frequency burns, shock, electrocution, explosions).
• Description and hazard assessment of three main electrosurgery systems: grounded, referred-to-ground, and floating output systems.
• Development and proposal of a new safety system and minimum circuit performance requirements.

Main Results:

• Identified specific hazards associated with different electrosurgery system designs and modifications.
• Highlighted the contributions of equipment design, failure modes, and operator error to safety risks.
• Proposed a safety system intended to eliminate the majority of identified hazards.

Conclusions:

• Electrosurgery, while invaluable, necessitates robust safety measures due to inherent risks.
• The proposed safety system offers a potential solution to mitigate common electrosurgical hazards.
• Establishing clear performance requirements and evaluating electrosurgery standards are crucial for enhancing patient safety.