Abstract: A thermotherapeutic apparatus comprises an internal applicator adapted to be inserted into a body cavity of a patient. The internal applicator includes an electrode for warming the tissues of the patient's body with use of an applied voltage, a holding member for holding the electrode, a balloon surrounding the electrode and attached to the holding member, a feed/discharge unit for feeding into and discharging a fluid from the balloon, and a mechanism for situating a radiation source, used in radiotherapy on the body tissues, in the vicinity of the electrode.

Abstract: A medical resecting device is disclosed in which, a living organism tissue is resected with ultrasonic vibrations while the corresponding body cavity is observed with an optical observation pipe. The resecting device includes an ultrasonic vibrator for generating ultrasonic vibrations, a horn connected to the vibrator, a probe connected to the front portion of the horn to transmit the ultrasonic vibrations generated by the vibrator, the probe being provided with a rod-like shaft and a distal end portion with a resecting blade, a power source unit for supplying a drive voltage to the vibrator, and an optical observation pipe having a guide hole in which the shaft of the probe is inserted.

Abstract: A hyperthermia apparatus for effecting the thermotherapy by heating a cancer locally including two outside-body electrodes to be arranged on an outer surface of a patient's body, an inside-body electrode to be inserted into a cavity of the patient's body, a high frequency power supply circuit for generating a high frequency power, and a switch connected between the high frequency power supply circuit and the electrodes for selectively supplying the high frequency power to two electrodes so that the cancer can be locally heated to a desired high temperature. At each electrode there are provided balloons through which temperature controlled liquid mediums are circulated to prevent portions of the body near the electrodes from being heated to undesired high temperatures. The liquid mediums circulated through the balloons are electrically isolated from each other completely.

Abstract: A medical treatment device for resecting, e.g., a prostate or breaking a bladder stone, which includes a vibrator for generating ultrasonic vibrations, a horn connected to the vibrator, a casing for accommodating the vibrator and the horn, a probe connected to the front portion of the horn to transmit ultrasonic vibrations generated by the vibrator, and a power source unit for supplying a drive voltage to the vibrator, the power source unit having an oscillator for producing a wave having a frequency for vibrating the probe and a frequency switching circuit for selecting an oscillating frequency at which the distal end of the probe serves as a loop of vibration or a frequency at which the distal end of the probe serves as a node of vibration.

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: An ultrasonic therapeutical apparatus observes the interior of a living body utilizing an ultrasonic wave, allows a location signal to be generated on the basis of an output from the observation system, and controls a focus shifting system in accordance with the location signal. Subsequently, a shock wave generating system is driven to generate an ultrasonic shock wave, which is directed to a focal point, thereby crushing a calculus.

Abstract: A laser beam irradiation apparatus comprising a laser generating device, a laser beam irradiation probe for applying a laser beam from the laser generating device to a region of an object of irradiation, an ultrasonic transmitter/receiver for emitting ultrasonic waves toward the region to which the laser beam is applied by the probe, receiving reflected waves from the irradiated region, and converting the reflected waves into an electrical signal, a measuring device for measuring the temperature of the irradiated region in accordance with the electrical signal from the ultrasonic transmitter/receiver, and an output adjuster for adjusting the output of the laser generating device in accordance with a temperature signal from the measuring device.

Abstract: This unit is for stopping hemorrhage by supplying a current for heating to a semi-conductive thermal element of small heat capacity to insure good heat response which is incorporated in the distal extremity of a slender probe, and possesses a means to recognize whether, or not, voltage fall between the both ends of the thermal element is within the permissible range in order to make it possible to detect qualitative deterioration of thermal element.