Abstract: An ultrasonic treatment apparatus comprises at least one hand piece, a plurality of probes, and an ultrasonic drive device. The hand piece has an ultrasonic oscillation device for generating ultrasonic vibration. Each probe is adapted to be attached to the hand piece and designed to transmit the ultrasonic vibration generated by the hand piece. The ultrasonic drive device is connected to the hand piece, for driving the ultrasonic oscillation device.

Abstract: An ultrasonic treatment apparatus comprises at least one hand piece, a plurality of probes, and an ultrasonic drive device. The hand piece has an ultrasonic oscillation device for generating ultrasonic vibration. Each probe is adapted to be attached to the hand piece and designed to transmit the ultrasonic vibration generated by the hand piece. The ultrasonic drive device is connected to the hand piece, for driving the ultrasonic oscillation device.

Abstract: An ultrasonic aspirator has a probe having the inside path made an aspirating path by being provided on the base side with an ultrasonic vibrator. The probe is used as an ultrasonic vibration transmitting member and is in contact at the tip with an object within a body cavity to crush the object and to discharge the crushed object out of the probe through the aspirating path. A device, for detecting a break of the probe, is provided so that, when the probe breaks, the vibration of the above mentioned ultrasonic vibrator will be stopped by a signal from the detecting device.

Abstract: An ultrasonic treatment apparatus includes an ultrasonic probe having an ultrasonic vibration generator for generating ultrasonic vibrations and a vibration transmission member for transmitting generated vibrations, and a sheath for covering at least an outer peripheral surface of the vibration transmission member of the ultrasonic probe, and a fluid supply unit, attached to an attaching portion of the sheath, for supplying a fluid into a path defined between the vibration transmission member and the sheath. A seal member for sealing the path is arranged nearer to the vibration generator than the attaching portion of the sheath.

Abstract: An ultrasonic treatment apparatus comprises a hand piece, and an RF power supply unit. The hand piece includes vibrator cover, a sheath connected thereto, a hollow cylindrical member, an ultrasonic vibrator in the cover for generating ultrasonic vibrations, a probe arranged in the sheath, for externally transmitting ultrasonic vibrations generated by the vibrator, and a cord for transmitting a high-frequency current from the RF power supply unit to the probe. The cover and sheath are composed of an insulating member, for preventing the high-frequency current transmitted by the probe from being externally leaked.

Abstract: An ultrasound type treatment apparatus includes an inner sheath covering an ultrasonic transmission member having a first suction passage and defining a space relative to the ultrasound transmission member and an outer sheath covering the inner sheath and defining a space relative to the inner sheath. In the treatment apparatus, a liquid medium supply passage is provided at one of the space between the ultrasound transmission member and the inner sheath and space between the inner sheet and the outer sheet to supply a liquid medium to the distal end of the ultrasound transmission member. A second suction passage is formed at the other of the space between the ultrasound transmission means and the inner sheath and space between the inner sheath and the outer sheath. The first suction passage is connected by a suction tube to the second suction passage.

Abstract: An ultrasound type treatment apparatus includes an ultrasonic oscillation device for outputting an ultrasonic oscillation wave, a drive circuit for driving the ultrasonic oscillation device, a probe connected to the ultrasonic oscillation device to transmit that ultrasonic oscillation wave to an affected region of interest of a human being, a sheath formed around the probe, through which cooling medium is passed and a supply tank for supplying cooling medium to the sheath. In this treatment apparatus, an arithmetic operation circuit monitors a drive state of the ultrasonic oscillation device, a comparator is provided for receiving monitor information from the arithmetic operation circuit and for determining whether or not the supply of cooling medium to the sheath is normal and a controller is provided for stopping a drive of the ultrasonic oscillation device when the supply of the cooling medium is determined by the comparator as being not normal.

Abstract: An ultrasonic treating apparatus includes an inpedance detection unit for detecting the impedance of an ultrasonic vibration element for transmitting ultrasonic vibrations and a determining unit for determining whether the ultrasonic vibration element is good or not. If the ultrasonic vibration element is found not to be good, then a control unit inhibits ultrasonic vibrations from being generated from the ultrasonic vibration element. It is thus possible to prevent any breakage of the apparatus.

Abstract: An ultrasonic vibration treatment apparatus comprising an ultrasonic vibration treatment device including an ultrasonic vibrator and an ultrasonic wave transmitter probe, a detecting element opposing the transmitter for applying light to the transmitter and receiving the light reflected from the transmitter, thereby to detect the amplitude of vibration of the treatment device, and a power source controller for reducing the power supplied to the vibrator, or stopping the power supply to the vibrator, in accordance with a detection signal output by the detecting element. The detecting element quickly detects the charges in the amplitude of vibration of the ultrasonic vibration treatment device, said charge in the amplitude representing the charges in the vibration condition of the vibration treatment device from actual driving to idling, or vice versa.

Abstract: A therapeutical device using ultrasonic vibration includes an ultrasonic vibration generator for generating ultrasonic vibration in the axial direction of the device and in a direction different from the axial direction of the device, an amplifier connected to the ultrasonic vibration generator for amplifying the ultrasonic vibration generated, and a vibration transmitting connected to the amplifier member for transmitting the ultrasonic vibration.

Abstract: A medical treatment apparatus utilizing ultrasonic waves according to this invention is applied to treatments such as breaking up a stone formed in a living body. The medical treatment apparatus utilizing ultrasonic waves includes a vibration generator (10) for generating ultrasonic vibrations and a vibration transmission member (16) for transmitting the ultrasonic vibrations generated by the vibration generator (10). The vibration transmission member (16) has a front end portion and a proximal end portion which is mounted on the vibration generator (10). The medical treatment apparatus further includes a cover member (20) for surrounding the outer surface of the vibration transmission member (16) and an exposing member (21) for exposing the distal end portion of the vibration transmission member (16) outside the cover member (20).

Abstract: In a standard converting apparatus for converting a television signal of the high definition television standard, for example, into that of the NTSC standard, data of an odd field and an even field of the NTSC standard are developed from data of one field of the high definition television standard and stored into memories. The stored data of the odd and even fields are consecutively read out to effect the reproduction of a still picture or slow reproduction. Because the reproduction of the still picture and the slow reproduction are achieved using one frame data of the odd field and even field, the picture becomes distinct. Also, since the odd and even fields are developed from the data of one field, double images are not reproduced even if picture movement occurs.

Abstract: A video signal control circuit having a memory, a write address generator for generating a write address data supplied to the memory, by which an input digital video signal is written in the memory at the address represented by the write address data, a read address generator for generating a read address data supplied to the memory, by which a controlled digital video signal is read out from the memory at the address represented by the read address data, an address comparator for comparing the write and read address data and for generating a compared output pulse, a timing pulse generator for generating first and second timing pulses, each of which has a predetermined pulse duration, a still picture detector supplied with the input digital video signal and for detecting whether the input digital video signal represents a still picture or not, a write address controller supplied with the compared output pulse, the first timing pulse and the output of the still picture detector and for controlling the write ad