What is the main function of electrocautery devices in medical procedures?

Electrocautery devices are primarily used to remove abnormal tissue and simultaneously stop bleeding during surgical procedures. These devices utilize high-frequency electrical currents, which heat a metal tip to the point where it can cut through tissue. The heat generated not only excises the targeted tissue but also coagulates blood vessels, effectively minimizing blood loss during the procedure.

This dual function of cutting and cauterizing is particularly valuable in surgical contexts, where maintaining a clear surgical field and preventing excessive bleeding are critical for patient safety and the overall success of an operation. Each of the other options addresses important aspects of medical procedures but does not accurately capture the primary purpose of electrocautery. For instance, alleviating pain and providing anesthesia are the roles of medication and other separate equipment, while enhancing visibility through illumination typically involves surgical lights rather than electrocautery devices.