Abstract: An electrode assembly for endoscopic surgery, including an electrode core wire (1), a telescopic control member (2) and an insulating outer sleeve (3). The electrode core wire (1) includes an electrode tip (101), a coaxial cable (102) and an electrode insulating tube (103). The electrode tip (101) is electrically coupled to an output end of an external host through the coaxial cable (102). The electrode insulating tube (103) sleeves on the electrode tip (101). The insulating outer sleeve (3) movably sleeves on the outside of the electrode core wire (1), and one end of the insulating outer sleeve (3) where the electrode tip (101) is located is a preset distance longer than the electrode insulating tube (103). The telescopic control member (2) is configured to control the movement of the insulating outer sleeve (3) so that the electrode tip 101 extends out of the insulating outer sleeve (3) or retracts into the insulating outer sleeve (3).

Abstract: An electromagnetic field surgical device for cutting and vaporizing tissue, and coagulating fluids. The device may include a surgical tool or probe having an electrode forming a tip. An electromagnetic field may be radiated from the tip of the surgical tool. The surgical tool may be placed in close proximity to the tissue to be treated to form a gap between the electrode and the tissue. An arc of current may be discharged from the tip of the electrode through the tissue to cut and vaporize the tissue. The transfer of energy from the electrode to the tissue may be optimized by moving the electrode. An output unit in the device may include a high frequency isolation transformer, and low frequency cut-off circuit to protect the patient from low frequency energy. Current may be switched through different circuits having fixed impedances to perform different tissue treatments.

Abstract: An electromagnetic field surgical device for cutting and vaporizing tissue, and coagulating fluids. The device may include a surgical tool or probe having an electrode forming a tip. An electromagnetic field may be radiated from the tip of the surgical tool. The surgical tool may be placed in close proximity to the tissue to be treated to form a gap between the electrode and the tissue. An arc of current may be discharged from the tip of the electrode through the tissue to cut and vaporize the tissue. The transfer of energy from the electrode to the tissue may be optimized by moving the electrode. An output unit in the device may include a high frequency isolation transformer, and low frequency cut-off circuit to protect the patient from low frequency energy. Current may be switched through different circuits having fixed impedances to perform different tissue treatments.