๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Bipolar versus monopolar electrosurgery
Bipolar versus monopolar electrosurgery
The prefixes monopolar and bipolar refer simply to the number of active electrodes. In monopolar electrosurgery, an active electrode transfers current to the tissue where it spreads throughout the body before being collected and returned to the electrosurgery unit by a dispersive (return or indifferent) electrode. Often the dispersive electrode is a plate that the patient either grips or is otherwise in contact with. In bipolar electrosurgery, the active electrode is a pair of forceps. Electrical current flows from the active prong through the grasped tissue and into the dispersive (return) prong where it flows back to the electrical generator. Bipolar electrosurgery may be safer for the patient, since there is less damage to the surrounding tissue and lower risk of distant site burns when compared to monopolar electrosurgery.21,22