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: 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: A therapeutical apparatus includes a measuring apparatus including a probe which generates an X-ray or ultrasonic wave in order to detect the location of a target to be treated such as calculi situated within the kidney, liver, biliary ducts. A therapeutical energy generator generates a shock wave of sufficient energy for purpose of therapy externally of the physical body and focusses it upon the target. Structure is provided for causing a displacement of the generator and the measuring apparatus around the surface of a patient. Structure is provided to activate the generator.

Abstract: A supersonic hyperthermia treating method comprises the steps of inserting a heat generating member having a high attenuation for supersonic waves into a diseased part in a body and leaving it there, then transmitting supersonic waves generated outside of the body from a supersonic wave generator for heating the heat generating member to hyperthermically treat the diseased part.

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 ultrasonic therapeutical apparatus comprises a plurality of ultrasonic vibrators which are disposed in a plurality of concentric circular rows and defining a ultrasonic shock wave generator. The apparatus also includes control means for independently controlling the frequency and the phase with which the ultrasonic vibrators in the respective raws are driven as well as the output levels thereof, thereby allowing only a positive pressure of the resultant ultrasonic wave to be increased while suppressing a negative pressure thereof to eliminate a cavitation effect.

Abstract: An electronic endoscope system has an elongated rigid inserting section and a relay optical system disposed therein. The relay optical system transfers an optical image. A imaging device is disposed at a focus position of the relay optical sysetm in a face-to-face relationship with the imaging surface thereof.

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: This rigid electronic endoscope is formed of an endoscope body and an elongate tubular guide tube. An insertable part to be inserted through the guide tube is provided in front of this endoscope body. A solid state imaging device as an imaging means is provided in the tip part of this insertable part and a supporting part of a cross-sectional area smaller than of this tip part is provided in the rear of this tip part. A space as a treating tool inserting path or as a liquid feeding and sucking tube path which can feed and drain an irrigating liquid is formed between this supporting part and the inner surface of the guide tube.

Abstract: A resectoscope device comprises a sheath body having an elongated hollow sheath to be inserted into a urethra. A handle part has a slider connected to the sheath body and slides in the axial direction. An observing scope is inserted into the sheath through the handle part and sheath body. An electrode is inserted through the sheath, and is removably connected at the rear end to the slider. The electrode has a resecting part that can be projected out of and retreated into a beak opening at the tip of the sheath by the sliding operation in the axial direction of the slider. A stabilizer is provided in the electrode and the scope is able to be inserted therethrough so that a forked part of the electrode may be housed in contact with the inner peripheral surface of the beak and the resecting part may be housed without catching on the beak opening.

Abstract: A resectoscope comprising a resecting sheath, an observing scope positioned in the sheath and an electrode having a forward and rear end positioned in the sheath. An electrode fixing member comprising an electrically conductive flexible fixing portion is provided which has a slit therein for receiving the rear end of the electrode. Electrically insulating pressing means press the flexible fixing portion into engagement with the electrode and an electrical plug receiving member with an opening therein is electrically connected to the fixing portion for receiving an electrical plug in the opening and connecting the plug to the electrode through the fixing portion. An electrically insulating moving member surrounds the fixing portion, the movable member being movable with respect to the sheath such that the movement of the movable member moves the fixing portion and the electrode fixed therein whereby the front portion of the electrode is extended out of the sheath.

Abstract: A stabbing apparatus for penetration of a living body wall, having a stabbing apparatus body provided with a sharp edge, a pressure sensor disposed on the peripheral surface thereof to sense the pressure to which the sensor is subjected when stabbing a living body wall, and an indicator responsive to the sensed pressure above a predetermined level, whereby the depth of penetration of the stabbing apparatus body with respect to the living body wall is indicated.

Abstract: An apparatus for positioning the eyepiece comprises a photographic positioning cam sleeve formed with a photographic positioning cam slot, and a dioptry adjusting cam sleeve formed with a dioptry adjusting cam slot. A dioptry adjusting pin is received in the cam slots and, as a photographing device is mounted on the endoscope, is driven by means of its engagement with the cam slots to position the eyepiece at a predetermined photographing position.

Abstract: A light-receiving end structure of an endoscope light guide comprises the illumination light-receiving end plane formed on an illumination light-receiving end portion of the light guide, an adhesive agent applied to the illumination light-receiving end portion to bond together optical fibers constituting the end portion, a transparent heat-resistant disc member mounted on the illumination light-receiving end plane, and a metal support surrounding the light-receiving end portion and the disc member in a liquid-tight state. The heat generated by light beams irradiated on the light-receiving end plane is conducted through the disc member to the support and then released into the open air. Therefore, the light-receiving end portion is not exposed to a high temperature. Accordingly, the light-receiving end structure is prominently increased in effective life.

Abstract: One end portions of a plurality of light conducting optical fibers disposed inside an outer sheath of an endoscope which is to be inserted into a body cavity are exposed directly to the outside through an opened distal end of the sheath. The exposed end face is formed into a smooth, spherical convexity, for example.

Abstract: A stabbing apparatus for penetration of a living body wall, having a stabbing apparatus body provided with a sharp edge, a pressure sensor disposed on the peripheral surface thereof to sense the pressure to which the sensor is subjected when stabbing a living body wall, and an indicator responsive to the sensed pressure above a predetermined level, whereby the depth of penetration of the stabbing apparatus body with respect to the living body wall is indicated.