Abstract: Methods and apparatus for cleaning a surgical instrument during a surgical procedure insert at least the portion of the surgical instrument that is to be cleaned into a vessel containing a liquid and applying ultrasonic vibrations to the liquid within the vessel to generate cavitation bubbles in the liquid. The bubbles formed by cavitation of the liquid are very effective at removing debris from the surgical instrument, particularly from crevices and difficult-to-reach areas of the surgical instrument. The liquid also can be heated by a heating element of the vessel or by activating a heat-generating transducer of the surgical instrument being cleaned, or both.

Abstract: According to the present invention, a high-frequency treatment apparatus includes: an electrode assembly electrically connected to the high-frequency generating unit for generating a high-frequency current, the assembly having at the distal end thereof a current-applying electrode for discharging the high-frequency current, the proximal end of the current-applying electrode being covered with a first insulating member; an insertion section receiving the electrode assembly such that the electrode assembly is movable in predetermined directions, the insertion section being located on the return side of the high-frequency current applied from the current-applying electrode; a liquid supply unit for supplying an irrigation liquid to the vicinity of the current-applying electrode; and a second insulating member for covering a predetermined area on the surface of base part of the current-applying electrode, the base part being exposed from the distal end of the first insulating member.

Abstract: A high frequency cauterizing power supply unit includes a control circuit for controlling a power supply circuit and waveform generating circuit. The control circuit includes a timer for measuring an output period and pause period, and a counter for measuring the number of times of output. The control circuit detects a setting power and the number of times of output according to the diameter of a blood vessel with a simple method in a short period of time, and controls the output period so as to be shortened, and also controls a setting power and the number of times of output depending on the diameter of the blood vessel.

Abstract: The present invention provides a high-frequency treatment apparatus including: an electrode assembly electrically connected to a high-frequency generating unit for generating a high-frequency current, the assembly having, at the distal end thereof, a current-applying electrode for discharging the high-frequency current, the proximal end of the current-applying electrode being covered with an insulator; an insertion section receiving the electrode assembly, the insertion section being located on the return side of the high-frequency current discharged from the current-applying electrode; a liquid supply section for supplying an irrigation liquid to the vicinity of the current-applying electrode; and an opening section provided at the distal end part of the insulator, the opening section supplying a gas to the vicinity of the current-applying electrode.

Abstract: A high-frequency cauterization power supply apparatus is provided with an electrosurgical scalpel device. When an operator starts to excise a living tissue in a conductive liquid, high-frequency power is applied to a treatment electrode. When an output impedance detected at that time is lower than a preset value, a variable DC power source circuit (HVPS) is set to a constant-current control mode. High-frequency power including an instantaneous high voltage is intermittently applied to the treatment electrode in a state that current output is kept at a fixed value, whereby a discharging operation starts. When the output impedance value is larger than a preset value or is large, the variable DC power source circuit is set to a constant-voltage control mode, electric power having a predetermined voltage value is supplied to the treatment electrode, whereby a living tissue to be cauterized is cauterized by using an appropriate high-frequency current.

Abstract: An organic electroluminescent element comprising an anode, a cathode and a plurality of organic compound layers sandwiched between the anode and cathode, the organic compound layers including: a hole-transporting layer made of an organic compound insoluble in alcohols; and an electron-transporting layer formed on the hole-transporting layer by a wet method, the electron-transporting layer being made of a phosphorus-containing organic compound soluble in the alcohols.

Abstract: Organic-inorganic composite semiconductor material including material mainly made of at least one kind of a metal ion selected from an alkali metal ion, an alkali earth metal ion and a rare-earth metal ion, and a chemical compound represented by the following general formula (1): where Ar1, Ar2 and Ar3 are each independently an aromatic ring group that optionally has a substituent group.

Abstract: The present invention provides a high-frequency treatment apparatus including: an electrode assembly electrically connected to a high-frequency generating unit for generating a high-frequency current, the assembly having, at the distal end thereof, a current-applying electrode for discharging the high-frequency current, the proximal end of the current-applying electrode being covered with an insulator; an insertion section receiving the electrode assembly, the insertion section being located on the return side of the high-frequency current discharged from the current-applying electrode; a liquid supply section for supplying an irrigation liquid to the vicinity of the current-applying electrode; and an opening section provided at the distal end part of the insulator, the opening section supplying a gas to the vicinity of the current-applying electrode.

Abstract: According to the present invention, a high-frequency treatment apparatus includes: an electrode assembly electrically connected to the high-frequency generating unit for generating a high-frequency current, the assembly having at the distal end thereof a current-applying electrode for discharging the high-frequency current, the proximal end of the current-applying electrode being covered with a first insulating member; an insertion section receiving the electrode assembly such that the electrode assembly is movable in predetermined directions, the insertion section being located on the return side of the high-frequency current applied from the current-applying electrode; a liquid supply unit for supplying an irrigation liquid to the vicinity of the current-applying electrode; and a second insulating member for covering a predetermined area on the surface of base part of the current-applying electrode, the base part being exposed from the distal end of the first insulating member.

Abstract: An electric operation apparatus includes a high-frequency generating device which generates high-frequency current for treating the body anatomy, an active electrode which supplies to the body anatomy, the high-frequency current generated by the high-frequency generating device, a solution supply device which supplies a conductive solution around the active electrode, a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution, a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode, and a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor.

Abstract: An electric operation apparatus includes a high-frequency generating device which generates high-frequency current for treating the body anatomy, an active electrode which supplies to the body anatomy, the high-frequency current generated by the high-frequency generating device, a solution supply device which supplies a conductive solution around the active electrode, a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution, a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode, and a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor.

Abstract: A high frequency cauterizing power supply unit includes a control circuit for controlling a power supply circuit and waveform generating circuit. The control circuit includes a timer for measuring an output period and pause period, and a counter for measuring the number of times of output. The control circuit detects a setting power and the number of times of output according to the diameter of a blood vessel with a simple method in a short period of time, and controls the output period so as to be shortened, and also controls a setting power and the number of times of output depending on the diameter of the blood vessel.