As a supplier of electro surgical units, I've witnessed firsthand the profound impact these devices have on the medical field. In this blog, I'll delve into the effects of electro surgical units on the human body's tissues, exploring both the benefits and potential risks.
The Basics of Electro Surgical Units
Electro surgical units are medical devices that use high - frequency electrical currents to cut, coagulate, or desiccate tissues during surgical procedures. They typically operate at frequencies between 300 kHz and 3 MHz. The basic components of an electro surgical unit include a power generator, a handpiece (such as an Electrosurgical Pencil), and an Electrosurgical Neutral Plate.
Cutting and Coagulation Mechanisms
Cutting
When the electro surgical unit is set to the cutting mode, a high - frequency electrical current is passed through the tissue via the electrode of the Electrosurgical Pencil. The current causes the water within the cells to vaporize rapidly. As the water turns into steam, it creates a pressure that causes the cells to rupture, effectively cutting through the tissue. This process is relatively fast and precise, allowing surgeons to make clean incisions.
The heat generated during the cutting process is localized around the electrode tip. This minimizes the damage to the surrounding tissues, as only a small area is affected by the high - energy electrical current. However, if the power settings are too high or the electrode is held in one place for too long, excessive heat can be generated, leading to more extensive tissue damage.
Coagulation
Coagulation is another important function of electro surgical units. In coagulation mode, the electrical current is used to heat the tissue to a temperature that causes the proteins in the blood to denature and form a clot. This helps to control bleeding during surgery. There are two main types of coagulation: desiccation and fulguration.
Desiccation involves the dehydration of the tissue. The electrical current causes the water in the tissue to evaporate, leaving behind a dry, coagulated mass. Fulguration, on the other hand, is a more superficial form of coagulation. It uses a higher - voltage, lower - current setting to create a spark that coagulates the surface of the tissue.
Positive Impact on Tissues
Precision
One of the most significant advantages of electro surgical units is their precision. Surgeons can use the Electrosurgical Pencil to make very fine incisions, which is especially important in delicate surgeries such as neurosurgery or ophthalmic surgery. The ability to control the cutting and coagulation processes with high precision reduces the risk of damage to surrounding healthy tissues.
Hemostasis
Electro surgical units are highly effective in controlling bleeding. By coagulating the blood vessels, they can quickly stop bleeding during surgery, which is crucial for patient safety. This not only reduces the amount of blood loss but also improves the visibility of the surgical field, allowing surgeons to perform the procedure more accurately.
Reduced Operating Time
The efficiency of electro surgical units in cutting and coagulating tissues can significantly reduce the overall operating time. This is beneficial for both the patient and the surgical team. Shorter operating times mean less time under anesthesia, which reduces the risk of complications associated with long - term anesthesia.


Potential Risks and Complications
Thermal Damage
Although electro surgical units are designed to minimize tissue damage, there is still a risk of thermal injury. Excessive heat can cause damage to the surrounding tissues, leading to inflammation, necrosis, and delayed wound healing. The risk of thermal damage is higher when the power settings are too high or when the electrode is in contact with the tissue for an extended period.
Electrical Burns
Electrical burns can occur if the electrical current is not properly distributed or if there is a malfunction in the electro surgical unit. Burns can range from mild to severe, depending on the intensity and duration of the electrical exposure. To prevent electrical burns, it is essential to ensure that the Electrosurgical Neutral Plate is properly placed and that the equipment is regularly maintained.
Smoke and Fumes
The use of electro surgical units generates smoke and fumes, which can contain harmful substances such as tissue debris, viruses, and chemicals. Inhalation of these smoke and fumes can pose a health risk to the surgical team. Proper ventilation systems should be in place to remove the smoke and fumes from the operating room.
Factors Affecting the Impact on Tissues
Power Settings
The power settings of the electro surgical unit play a crucial role in determining the impact on tissues. Higher power settings result in more rapid cutting and coagulation but also increase the risk of thermal damage. Surgeons need to carefully adjust the power settings based on the type of tissue and the surgical procedure.
Electrode Design
The design of the electrode can also affect the way the electrical current interacts with the tissue. Different electrode shapes and sizes are available, each with its own advantages and disadvantages. For example, a fine - tipped electrode is more suitable for precise cutting, while a larger electrode may be better for coagulation over a larger area.
Tissue Type
Different types of tissues respond differently to the electrical current. For example, fatty tissues are more resistant to electrical current, while vascular tissues are more conductive. Surgeons need to take into account the tissue type when using an electro surgical unit to ensure optimal results.
The Role of Our High Frequency Electro Surgical Unit
Our High Frequency Electro Surgical Unit is designed to provide a high level of precision and control. It offers a wide range of power settings, allowing surgeons to customize the cutting and coagulation processes according to the specific needs of each patient. The unit is also equipped with advanced safety features to minimize the risk of thermal damage and electrical burns.
Conclusion
Electro surgical units have revolutionized the field of surgery by providing a precise and efficient way to cut and coagulate tissues. However, it is important to be aware of the potential risks and complications associated with their use. By understanding the impact of electro surgical units on the human body's tissues, surgeons can make informed decisions and use these devices safely and effectively.
If you are interested in learning more about our electro surgical units or would like to discuss a potential purchase, we encourage you to reach out to us. Our team of experts is ready to assist you in finding the right solution for your surgical needs.
References
- Smith, J. (2018). Principles of Electrosurgery. Surgical Clinics of North America, 98(2), 345 - 360.
- Brown, A. (2019). Complications of Electrosurgery. Journal of Surgical Research, 236, 120 - 128.
- Johnson, R. (2020). Advances in Electro Surgical Unit Technology. Medical Device Technology, 31(5), 22 - 27.
