Abstract: A medical device includes: a tube through which fluid flows; a handle part coupled to a proximal end part of the tube; an electrode tip coupled to a distal end part of the tube; a fluid injection part configured to inject fluid into the tube; one or more openings formed in the tube; and a guide member disposed in the tube, and having an inclined part to guide the direction of the fluid sprayed out through the opening.

Abstract: The present invention relates to a surgical device. The surgical device may include: a needle device; an aspiration device, which is attached to or detached from the needle device, for tissue sampling; an injection device, which is attached to or detached from the needle device, for drug injection; and an electrode device, which is attached to or detached from the needle device, for thermal treatment. Therefore, any one of the aspiration device, the injection device, and the electrode device is attached to or detached from the needle device, thereby being capable of performing tissue sampling, drug injection, and thermal treatment. Thus, the time and costs required for tissue sampling, drug injection, and thermal treatment are reduced and foreign substances can be prevented from flowing into a surgical site in advance.

Abstract: The present invention relates to a surgical device. The surgical device may include: a needle device; an aspiration device, which is attached to or detached from the needle device, for tissue sampling; an injection device, which is attached to or detached from the needle device, for drug injection; and an electrode device, which is attached to or detached from the needle device, for thermal treatment. Therefore, any one of the aspiration device, the injection device, and the electrode device is attached to or detached from the needle device, thereby being capable of performing tissue sampling, drug injection, and thermal treatment. Thus, the time and costs required for tissue sampling, drug injection, and thermal treatment are reduced and foreign substances can be prevented from flowing into a surgical site in advance.

Abstract: The present invention relates to a bipolar electrode, and more particularly, to an electrode for high-frequency heat treatment capable of cauterizing and necrotizing lesions by heating the lesions, such as a cancer tissue of a body organ, with a high frequency, in particular, an overlapping bipolar electrode for high-frequency heat treatment capable of cauterizing lesions of tubular organs, such as a blood vessel, with a minimum invasion.

Abstract: The present invention relates to a device and a method for detecting a position of an electrode inserted into a human body that predict a path through a position sensor in a handle part before the electrode is inserted into the human body and display the path. The device for detecting the position of an electrode inserted into a human body according to the present invention includes: a position signal generator generating a position signal; an electrode needle having an electrode-side position sensor that is provided in an interior of a lance needle thereof and receives the position signal to generate first position information; and a handle connected to the electrode needle and having a handle-side position sensor that is included therein and receives the position signal to generate second position information.

Abstract: There are provided a system for ablation utilizing multiple electrodes and a method for controlling the system. The system includes: a main amplification unit providing main radio frequency (RF) power by amplifying received power; a sub-amplification unit providing sub-RF power by amplifying received power; a first switching unit transmitting the main RF power provided by the main amplification unit to one of first to third electrodes; a second switching unit transmitting the sub-RF power provided by the sub-amplification unit to one of the first to third electrodes; and a control unit controlling the first and second switching units to apply the main RF power and the sub-RF power to a pair of respective electrodes previously selected from the first to third electrodes.