Patent ID: 7303559

Claim:
A surgical dissector, comprising: a housing having a first end and a second end, and on the first end is formed a suction inlet; a circuit board disposed within the housing; a first switch connected to the circuit board for performing function of electrical coagulating, and disposed on the housing; a second switch connected to the circuit board for performing function of electrical cutting, and disposed on the housing; a multipurpose tube, having a suction passageway, disposed in the housing and extended out of the second end of the housing, and having a beveled end with an inclined plane, the multipurpose tube dissecting and simultaneously performing suction at situ of operation, the multipurpose tube scraping and simultaneously performing suction at situ of operation, and the multipurpose tube push peeling and simultaneously performing suction at situ of operation; an electrosurgical knife, having a suction passageway, disposed in the housing and extended out of the second end of the housing, the electrosurgical knife being connected electrically to the circuit board, and having the functions of electrical coagulating and cutting; and a retractable means for relative retractable movement between the tube and the electrosurgical knife; wherein the retractable means comprises a substantially semicircular hoop, and the hoop is disposed on the tube wherein the electrosurgical knife is disposed within the tube, and a generally L-shaped slot is provided on the internal end of the tube, and on the electrosurgical knife is disposed a stopping projection.