Abstract: A device of the present disclosure includes an electronic component, a metal plate, a housing, and a wavelength selective heat radiating member. The metal plate is thermally coupled to the electronic component. The housing houses the electronic component and the metal plate. The wavelength selective heat radiating member is mounted on a surface of the metal plate, so as to face an inner side surface of a specific portion of the housing. The wavelength selective heat radiating member is configured to convert thermal energy from the electronic component into heat radiation having a wavelength that penetrates the specific portion of the housing, and emit the heat radiation toward the inner side surface of the specific portion of the housing.

Abstract: A treatment device for an endoscope includes a pair of forceps pieces which has forceps surfaces in contact with a subject tissue and are opened and closed with the forceps surfaces facing each other. Concave portions are formed in the central portions of the forceps surfaces to form the forceps surfaces around the concave portions, and on the forceps surfaces, a first region on the proximal end side of the forceps pieces has a plurality of first teeth with top surfaces formed to be unsharp, and a second region on the distal end side of the forceps pieces to the first region has a plurality of second teeth with top surfaces formed to be sharp.

Abstract: A device of the present disclosure includes an electronic component, a metal plate, a housing, and a wavelength selective heat radiating member. The metal plate is thermally coupled to the electronic component. The housing houses the electronic component and the metal plate. The wavelength selective heat radiating member is mounted on a surface of the metal plate, so as to face an inner side surface of a specific portion of the housing. The wavelength selective heat radiating member is configured to convert thermal energy from the electronic component into heat radiation having a wavelength that penetrates the specific portion of the housing, and emit the heat radiation toward the inner side surface of the specific portion of the housing.

Abstract: An object is to provide a method for manufacturing a wavelength selective heat radiation material in which a surface roughness of an upper portion of a cavity wall defining each microcavity is suppressed or in which microcavities each having an aspect ratio larger than 3.0 are formed. For the wavelength selective heat radiation material, a base material having a mask having predetermined openings tightly adhered to a surface thereof, or a base material in which depressions are previously formed on one surface thereof by pressing a die having projections arrayed so as to correspond to positions of microcavities thereagainst, is subjected to anisotropic etching, thereby providing a wavelength selective heat radiation material in which the surface roughness of the upper portion of the cavity wall defining each of the microcavities is suppressed or a wavelength selective heat radiation material having microcavities whose each aspect ratio is larger than 3.0.

Abstract: An object is to provide a method for manufacturing a wavelength selective heat radiation material in which a surface roughness of an upper portion of a cavity wall defining each microcavity is suppressed or in which microcavities each having an aspect ratio larger than 3.0 are formed. For the wavelength selective heat radiation material, a base material having a mask having predetermined openings tightly adhered to a surface thereof, or a base material in which depressions are previously formed on one surface thereof by pressing a die having projections arrayed so as to correspond to positions of microcavities thereagainst, is subjected to anisotropic etching, thereby providing a wavelength selective heat radiation material in which the surface roughness of the upper portion of the cavity wall defining each of the microcavities is suppressed or a wavelength selective heat radiation material having microcavities whose each aspect ratio is larger than 3.0.

Abstract: A treatment device for an endoscope includes a pair of forceps pieces which has forceps surfaces in contact with a subject tissue and are opened and closed with the forceps surfaces facing each other. Concave portions are formed in the central portions of the forceps surfaces to form the forceps surfaces around the concave portions, and on the forceps surfaces, a first region on the proximal end side of the forceps pieces has a plurality of first teeth with top surfaces formed to be unsharp, and a second region on the distal end side of the forceps pieces to the first region has a plurality of second teeth with top surfaces formed to be sharp.

Abstract: A high frequency treatment tool for an endoscope includes a flexible insulating tube to be inserted into and pulled out of an accessory channel of the endoscope, the flexible insulating tube including a wire insertion channel and a water channel through which water is conveyed, a conductive wire configured to move back and forth in an axis line direction thereof through the wire insertion channel, and an electrode configured to project and recede from a distal end of the flexible insulating tube. The wire insertion channel and the water channel are separately formed in an axis line direction of the flexible insulating tube such that each of axis lines of the wire insertion channel and the water channel is eccentric with respect to the axis line of the flexible insulating tube. The electrode is coupled to the conductive wire such that an axis line of the electrode is eccentric with respect to an axis line of the conductive wire.

Abstract: A frequency tool for use in endoscopic electro-surgery, the high frequency tool having a high frequency knife at a distal end of a flexible cord encased in a tube member of a flexible sheath. A tubular rigid tip member of electrically insulating material is fitted in a fore distal end portion of the tube member, forming an annular flat end face together with the tube member. Formed internally of the tubular rigid tip member is a through axial passage hole to receive therein a retractably protrusible electrode member of the high frequency knife. At a fore distal end of a rod portion, the electrode member is provided with a spherically bulged portion of a diameter smaller than inside diameter of the axial passage hole of the tubular rigid tip member.

Abstract: A high frequency treatment tool comprises: a flexible sheath; a treatment tool main body comprising a flexible cord and an electrode, provided inside the flexible sheath; a stopper member attached inside the flexible sheath that disposes its front end face at almost the same position as a front end of the flexible sheath to form a front end reference face; an insertion hole formed to penetrate the stopper member, in which the electrode member is to be inserted; an operating section that reciprocates the electrode member between a state that the electrode member is stuck out from the front end reference face and a state that the electrode member is withdrawn into the insertion hole; a restricting member provided around a connecting portion between the flexible cord and the electrode member; and a fluid channel provided at the stopper member, for making a fluid to flow out from the front end face.