Electrosurgical unit

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.

1. Electrosurgical Unit Presented By: Prasad vagal Shraddha Khatavkar

2. Electrosurgical unit

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. Principle of surgical diathermy

5. Types of electrosurgical technique E lectro-surgical coagulation Fulguration Desiccation Electrotomy

6. Waveforms

7. Block Diagram of ESU

8. Types of ESU Monopolar technique Bipolar technique

9. Mono-Polar Technique (flow of current)

10. Mono-polar Technique

11. Bipolar Technique

12. Types of electrodes for cutting Needle electrode Angulated lancet electrode Angulated band loop electrode Wire loop electrode Straight lancet electrode

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. Safety aspects in electro surgical unit Burns High frequency current Explosion hazards

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. 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. Thank you !!!

18. Bibliography Iambiomed R S Khandpur Wikipedia