Abstract: According to one embodiment, a semiconductor light-emitting device having high light extraction efficiency is provided. The semiconductor light-emitting device includes a light transmissive substrate; a nitride semiconductor layer of a first conduction type formed on or above a top face side of the light transmissive substrate; an active layer made of nitride semiconductor formed on a top face of the nitride semiconductor layer of the first conduction type; a nitride semiconductor layer of a second conduction type formed on a top face of the active layer; a dielectric layer formed on a bottom face of the light transmissive substrate and having a refractive index lower than that of the light transmissive substrate; and a metal layer formed on a bottom face of the dielectric layer. And an interface between the light transmissive substrate and the dielectric layer is a uneven face, and an interface between the dielectric layer and the metal layer is a flat face.

Abstract: According to one embodiment, a semiconductor light emitting device includes a stacked structural body, a first electrode, and a second electrode. The stacked structural body includes a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, and a light emitting portion. The stacked structural body has a first major surface on a side of the second semiconductor layer. The first electrode is provided on the first semiconductor. The second electrode is provided on the second semiconductor layer. The first electrode includes a first pad portion and a first extending portion that extends from the first pad portion along a first extending direction. The first extending portion includes a first width-increasing portion. A width of the first width-increasing portion along a direction orthogonal to the first extending direction is increased from the first pad portion toward an end of the first extending portion.

Abstract: A high-frequency surgical apparatus for treating patent foramen ovale in a heart includes a flexible probe which has such a length as to allow the probe to be placed in the patent foramen ovale by passing through the blood vessel; an electrode section which, being placed at a distal end of the probe, has three or more electrodes along a longitudinal direction of the probe; a high-frequency power supply section which supplies predetermined high-frequency power to the patent foramen ovale via the electrode section; a switching section which switches among a plurality of signal lines connected to the three or more electrodes; and a high-frequency power control section which controls switching of the switching section so as to supply the high-frequency power to two electrodes.

Abstract: A high-frequency surgical PFO closure apparatus used to treat patent foramen ovale in the heart includes a first and second electrodes which grasp living tissue of the patent foramen ovale; a high-frequency power supply section which supplies high-frequency power to the living tissue via the electrodes; an impedance measuring section which measures an impedance value by supplying high-frequency power to the living tissue; a grasping condition determining section which determines, based on the measured impedance value, a grasping condition regarding how the living tissue is grasped in blood by the electrodes; and a control section which controls high-frequency power supply at a predetermined power level needed to treat the patent foramen ovale, according to a result of the determination.

Abstract: A high-frequency surgical device includes: a treatment section provided with electrodes for supplying high-frequency power to living tissue of a patent foramen ovale; a high-frequency power supplying section for supplying high-frequency power to living tissue around the electrodes through the electrodes; a blood flow detecting section for detecting intracardiac blood flow information based on biological information inputted from outside; and a control section for controlling high-frequency power to be supplied to the side of electrodes based on the blood flow information.

Abstract: A high frequency operation apparatus includes: a treatment section provided with electrodes for performing treatment of a living tissue; a switch section connected to each of the electrodes and switching conduction of the electrodes to configure paired electrodes from the electrodes; a power supply section for supplying high frequency power to the living tissue via the paired conductive electrodes; a biological information measuring section for sequentially measuring biological information; a determining section for determining if the measured values of biological information are within a predetermined range; and a control section for performing control so that the high frequency power is supplied to the living tissue by using only the paired electrodes corresponding to the measure value determined as being within the predetermined range.

Abstract: To provide a barrier filter in which a filter element does not peel from a holding frame. A barrier filter has a cylindrical outline and includes holding frame 1 and filter element 40 arranged on a circumference surface, in which holding frame 1 includes small diameter frame 2 forming one end axially, ring-shaped large diameter frame 10 forming the other end, and circumference frame 20 inclined radially in the circumference surface, for linking small and large diameter frames 2 and 10. On an inner surface of large diameter frame 10, thick-walled portion 15 inclined inward to an inclined circumference surface is formed, the filter element is rounded and formed hollow in a truncated cone shape, an upper end edge portion thereof is inserted into small diameter frame 2 and a lower end edge portion is inserted into large diameter frame 10 outside thick-walled portion 15 to hold the filter element.

Abstract: A therapeutic treatment device for body lumen occlusion of the invention includes: a pliable tubular main body portion including a fluid path inside thereof, the pliable tubular main body portion being inserted into a body lumen; an energy generating portion disposed on a side of one end of the main body portion; and an aperture portion communicating with the fluid path, the aperture portion being disposed in proximity to the energy generating portion. This allows the present invention to achieve a therapeutic treatment device for body lumen occlusion inexpensively produceable with a simple constitution, which can prevent damaging a body lumen and selectively occlude the body lumen.

Abstract: According to the present invention, a heat generating element to be current-carried is provided at a grasp portion on the tip side of a treatment portion, the patient's body tissue grasped between a pair of grasp portions is coagulated by heat of the heat generating element, and a metal scissors blade for cutting the patient's body tissue is provided on the rear side of the grasp portion in the treatment portion.

Abstract: There is provided an oil strainer in which the assembling work can be performed very easily, and more over high quality can be ensured. An oil strainer 1 includes a housing 2 formed by closing an open portion 6 of a case body 3 by a cover body 20 and a filter element 30 disposed in the housing 2. In the case body 3, there is provided a groove portion 8 including a guide portion 9 for guiding the filter element 30 to the inside of the case body 3 by inserting both side edges of the filter element 30 into the inside and a locking portion 10 for locking the filter element 30 by inserting the tip end edge in the insertion direction of the filter element 30 into the inside.

Abstract: There is provided an oil strainer in which the filtration area is large, and which can go around an obstacle between pipes etc. to be connected. An oil strainer 1 includes a housing 2 in which an open portion 6 of a case body 3 is closed by a cover body 20, a filter element 30 disposed in the housing 2, an inflow portion 15, and an outflow portion 16. The housing 2 is formed so as to extend along one axis direction in a state of providing a bend portion in an intermediate portion in one axis direction X, and the inflow portion 15 and the outflow portion 16 are arranged at both ends in one axis direction X.

Abstract: In an energy irradiation device, individual identification information provided to an energy transmitting and irradiating section is acquired, and a date and time when the individual identification information has been acquired is recorded. Next, the acquired individual identification information is associated with at least one of an output signal of an output operating section and a date and time when the information has been recorded to store the information. When new individual identification information is acquired, the new individual identification information is searched from the individual identification information stored in the memory. It is judged whether or not energy irradiation is possible based on the information of the output signal or the date and time stored in association with the individual identification information in a case where the new individual identification information exists in the individual identification information stored in the memory as a result of the searching.

Abstract: It is provided an apparatus for hyperthermia treatment capable of detecting emptiness of the storage unit or leakage of the cooling fluid. The apparatus for hyperthermia treatment by emitting body tissue with energy comprising: an applicator; a cooling fluid container holding cooling fluid to be circulated through said applicator; a storage unit for storing said cooling fluid to refill said cooling fluid container; a sensor for detecting whether said cooling fluid's amount held in said cooling fluid container is more than a preset amount or not; a refill control unit refilling said cooling fluid container with said cooling fluid from said storage unit when said cooling fluid's amount in said cooling fluid container is less than the preset amount; a total refill timer counting a total refill time required for refilling said cooling fluid container with said cooling fluid from said storage unit; and an abnormality notifying unit notifying an abnormality when said total refill time exceeds a preset time.

Abstract: The thermal treatment apparatus is equipped with a laser generator for supplying laser beams, a laser irradiation unit for applying the supplied laser beams to tissues, and a control unit for totally controlling various parts of the system. The laser irradiation unit is equipped with a movable laser emission part for emitting laser beams to tissues, a motor for reciprocating a laser emission part, and a guide lumen for supporting an endoscope in such a way as to enable it to move in the direction of the laser emission part. The control unit controls the motor that drives the laser emission part to make reciprocation motion in such a way that the laser emission part stops at a position where it does not interfere with the moving passage of the endoscope.

Abstract: A heating treatment system consists mainly of coagulating/incising forceps in which a plurality of heating elements are incorporated, and a main unit that feeds power to the heating elements incorporated in the coagulating/incising forceps and that drives and controls the heating elements. The main unit can be connected to coagulating/incising forceps in which up to four heating elements are incorporated. The main unit includes element temperature measurement/output control units and temperature setting units which are associated with four channels allocated to the heating elements. A control unit controls the element temperature measurement/output control units and temperature setting units. The control unit judges the type of connected forceps by referencing data stored in advance in a memory using information of the type of forceps received from the coagulating/incising forceps, and controls power feed to the heating elements.

Abstract: According to the present invention, a heat generating element to be current-carried is provided at a grasp portion on the tip side of a treatment portion, the patient's body tissue grasped between a pair of grasp portions is coagulated by heat of the heat generating element, and a metal scissors blade for cutting the patient's body tissue is provided on the rear side of the grasp portion in the treatment portion.

Abstract: According to the present invention, a heat generating element to be current-carried is provided at a grasp portion on the tip side of a treatment portion, the patient's body tissue grasped between a pair of grasp portions is coagulated by heat of the heat generating element, and a metal scissors blade for cutting the patient's body tissue is provided on the rear side of the grasp portion in the treatment portion.

Abstract: The thermal treatment apparatus is equipped with a laser generator for supplying laser beams, a laser irradiation unit for applying the supplied laser beams to tissues, and a control unit for totally controlling various parts of the system. The laser irradiation unit is equipped with a movable laser emission part for emitting laser beams to tissues, a motor for reciprocating a laser emission part, and a guide lumen for supporting an endoscope in such a way as to enable it to move in the direction of the laser emission part. The control unit controls the motor that drives the laser emission part to make reciprocation motion in such a way that the laser emission part stops at a position where it does not interfere with the moving passage of the endoscope.

Abstract: A heating treatment system consists mainly of coagulating/incising forceps in which a plurality of heating elements are incorporated, and a main unit that feeds power to the heating elements incorporated in the coagulating/incising forceps and that drives and controls the heating elements. The main unit can be connected to coagulating/incising forceps in which up to four heating elements are incorporated. The main unit includes element temperature measurement/output control units and temperature setting units which are associated with four channels allocated to the heating elements. A control unit controls the element temperature measurement/output control units and temperature setting units. The control unit judges the type of connected forceps by referencing data stored in advance in a memory using information of the type of forceps received from the coagulating/incising forceps, and controls power feed to the heating elements.

Abstract: A wall of an inner loop taker includes a guiding surface, a first vertical surface which extends continuously to an inward end of the guiding surface in a radial direction of the inner loop taker and is parallel to an axial line of a needle, and a second vertical surface which is formed on the inward side of the first vertical surface in the radial direction of the inner loop taker but closer to the axial line of the needle than the first vertical surface and which is parallel to the axial line of the needle. A first angle .theta.