Abstract: An electrode for a high-frequency medical device in which a coating film is formed on at least a part of a surface of a treatment section of the medical device, wherein the coating film includes a silicone resin, and at least one type of filler having conductivity. Particles of the fillers are fusion-bonded to each other to form a conductive path, and/or a particle of the filler and an electrode substrate disposed on a surface of the treatment section are fusion-bonded to form a conductive path.

Abstract: This treatment portion of a medical energy device treats a biological tissue by transferring energy to the biological tissue, in a state where the treatment portion is in contact with the biological tissue. The treatment portion of the medical energy device includes a main body portion and a covering film. The main body portion transfers energy to the biological tissue. The covering film contains silicone as a main component, and covers the surface of the main body portion. The silicone includes at least a D unit and a T unit. In the silicone, the molar ratio of silicon atoms forming the D unit with respect to all the silicon atoms is 40-99%. In the silicone, the molar ratio of methyl functional groups bonded to the silicon atoms with respect to all functional groups bonded to the silicon atoms is at least 60%.