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Electrosurgical Unit 
Presented By: 
Prasad vagal 
Shraddha Khatavkar
Electrosurgical unit
Principle 
 Electro surgery is the application of a 
high-frequency electric current to 
biological tissue as a means to ...
Principle of surgical diathermy
Types of electrosurgical 
technique 
1. Electro-surgical coagulation 
2. Fulguration 
3. Desiccation 
4. Electrotomy
Waveforms
Block Diagram of ESU
Types of ESU 
• Monopolar technique 
• Bipolar technique
Mono-Polar Technique 
(flow of current) 
• Active Electrode tip 
• Patient 
• Neural Electrode 
• Generator
Mono-polar Technique
Bipolar Technique
Types of electrodes for cutting 
• Needle electrode 
• Angulated lancet electrode 
• Angulated band loop electrode 
• Wire...
MODES 
 The device has several modes: 
• Cut mode—Pure sine wave, 
for cutting with the least 
coagulation. 
• Coag mode—...
Safety aspects in electro 
surgical unit 
i. Burns 
ii. High frequency current 
iii. Explosion hazards
Staff safety 
 Avoid contact with the neutral electrode 
 When applying current, always be sure to wear 
gloves and touc...
Advantages over other 
techniques 
• The laser is less efficient, less powerful, 
more costly, more bulky in the operating...
Thank you !!!
Bibliography 
a. Iambiomed 
b. R S Khandpur 
c. Wikipedia
Electrosurgical unit
Electrosurgical unit
Electrosurgical unit
Electrosurgical unit
Electrosurgical unit
Electrosurgical unit
Electrosurgical unit
Electrosurgical unit
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Electrosurgical unit

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This is to explian the basic Principle of Electrosurgical unit
It includes Principle
Block diagram,types various techniques,front and back panel of the machine,hazards,advantages etc.

Published in: Healthcare

Electrosurgical unit

  1. 1. Electrosurgical Unit Presented By: Prasad vagal Shraddha Khatavkar
  2. 2. Electrosurgical unit
  3. 3. Principle  Electro surgery is the application of a high-frequency electric current to biological tissue as a means to cut, coagulate, desiccate, or fulgurate tissue.  Electrosurgical devices are frequently used during surgical operations helping to prevent blood loss in hospital operating rooms or in out patient procedures.
  4. 4. Principle of surgical diathermy
  5. 5. Types of electrosurgical technique 1. Electro-surgical coagulation 2. Fulguration 3. Desiccation 4. Electrotomy
  6. 6. Waveforms
  7. 7. Block Diagram of ESU
  8. 8. Types of ESU • Monopolar technique • Bipolar technique
  9. 9. Mono-Polar Technique (flow of current) • Active Electrode tip • Patient • Neural Electrode • Generator
  10. 10. Mono-polar Technique
  11. 11. Bipolar Technique
  12. 12. Types of electrodes for cutting • Needle electrode • Angulated lancet electrode • Angulated band loop electrode • Wire loop electrode • Straight lancet electrode
  13. 13. MODES  The device has several modes: • Cut mode—Pure sine wave, for cutting with the least coagulation. • Coag mode—Pulsed sine wave, low-duty cycle, for coagulating bleeding tissue. • Blend 1 mode—Modulated sine wave, for coagulating as the tissue is cut. • Blend 2 mode—Modulated sine wave, for coagulating as the tissue is cut.
  14. 14. Safety aspects in electro surgical unit i. Burns ii. High frequency current iii. Explosion hazards
  15. 15. Staff safety  Avoid contact with the neutral electrode  When applying current, always be sure to wear gloves and touch the equipment or patient body with the entire palm of the hand, not with a single finger.  Electrosurgical equipment needs to be grounded in order to minimize interference with video endoscopic systems.  Smoke generated during electrosurgical procedures can be irritating and potentially harmful to personnel; surgical masks and adequate ventilation of smoke may be useful
  16. 16. Advantages over other techniques • The laser is less efficient, less powerful, more costly, more bulky in the operating room and less understood due to a smaller case history data base work to discourage its use in many cases.  So much depends upon the skill of the surgeon in the use of any surgical knife, that the selection is often a professional judgment.
  17. 17. Thank you !!!
  18. 18. Bibliography a. Iambiomed b. R S Khandpur c. Wikipedia

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