An electrosurgical hemostatic instrument is provided in which the coagulation status of tissue engaged by two elements delivering an electrosurgical energy to tissue may be observed, and in which damage from thermal spread may be minimized. A preferred embodiment of the invention provides a...http://www.google.com.tw/patents/USH1745?utm_source=gb-gplus-share專利 USH1745 - Electrosurgical clamping device with insulation limited bipolar electrode
