Abstract: A bracket and a needle guide for an ultrasonic probe. include: a bracket formed to enclose the ultrasonic probe; at least one projection formed on the inside of the bracket; a needle guide body formed integrally with the bracket on one side of the bracket; a slot formed in the needle guide body so that a needle can be inserted thereinto and rotated therein; a cutout groove vertically formed on the lateral surface of the needle guide body to communicate with the slot; and an outlet through which the needle passing through the slot is drawn out of the needle guide body.

Abstract: An electrode for an electrosurgical unit is used for ablating and necrosing a living tissue by RF electric energy. The electrode can be a hollow electrode formed in an elongated hollow tube shape, including a non-insulating region of a predetermined length formed on one side, and an insulating region formed on an outer surface other than the non-insulating region. The electrode further can include a saline solution circulation structure that supplies pressurized saline solution for cooling a living tissue which is in contact with the hollow electrode from the outside of the living tissue to the inside of the hollow electrode, and one or more saline solution discharge holes formed in the non-insulating region of the hollow electrode to discharge some of the circulating pressurized saline solution to the living tissue.

Abstract: The present invention relates to an electrode for an electrosurgical unit for the use in ablating and necrosing a living tissue by RF electric energy.

Abstract: The present invention discloses an electrode for an electric operation device including a hollow electrode being formed in a hollow tube shape extended long from a closed tip, and having an insulation-coating on the outside surface except a predetermined length of the closed tip side, a refrigerant tube having a smaller diameter than a diameter of the hollow electrode, and being inserted into the hollow electrode, the refrigerant tube supplying refrigerants for cooling a living tissue contacting the closed tip and the hollow electrode into the hollow electrode, and externally discharging the heat-exchanged refrigerants from the living tissue through the gap between the refrigerant tube and the hollow electrode, at least one first hole formed on the outside surface of the hollow electrode where the insulation coating has not been formed, for externally discharging some of the refrigerants supplied through the refrigerant tube from the hollow electrode, and a flow control means formed on the outside surface of