Nihon Kohden Corporation

Fujitsu Corporation

Inter-university Research Institute Corporation National Institutes of Natural Sciences

Tohoku University

Inter-university Research Institute Corporation

Eujitsu Limited

Yoshinobu Ono

Hiroyuki Matsumoto

Masayuki Inoue

Takeshi Kojima

Shinji Yamamori

Noriaki Todokoro

Jun Motogi

Naoki Kobayashi

Yoshio Watanabe

Yasuyuki Takeshima

Koji Inui

Ryosuke Ushijima

Fumihiko Takatori

Hidetoshi Dainobu

Katsumi Nakaichi

Masahiro Yade

Kazuwa Shibuya

Shinjiro Tanida

Motoo Nakano

Tsuneo Takayanagi

Haruhisa Mori

Tadayuki Kojima

Satoshi Saitoh

Takehito Suzuki

Takahito Ono

Takashi Igarashi

Teruhiro Koike

Yuka Minegishi

Ryousuke Ushijima

Masanao Hotta

A detecting devicedetects an elastic wave propagating through the air. The detecting deviceincludes: a first electrodethat is a plate having a cantilever structure with a fixed end FX and a free end FR and that vibrates by being bent by the elastic wave; and a second electrodethat is a plate, that is opposed to the first electrode, and that has a predetermined distance from the first electrode. The detecting devicedetects the elastic wave on the basis of a change in capacitance between the first electrode and the second electrode. An end of the second electrodein a direction from the fixed end FX to the free end FR is closer to the fixed end than the free end.

Detecting device for detecting photoacoustic elastic waves

A pain sensory nerve stimulation apparatus includes: an electrode portion including: a first electrode, a tip end of which is adapted to be inserted into a skin; and at lease one second electrode which is disposed in a circumference of the first electrode without being electrically conductive with the first electrode, and which is adapted to be in contact with a skin; and a stimulation signal supplying unit, supplying a bipolar stimulation signal between the first electrode and the second electrode, the bipolar stimulation signal including a first waveform signal and a second waveform, the first waveform which is convex in a negative direction in the first electrode, the second waveform signal which is convex in a positive direction in the first electrode.

Pain sensory nerve stimulation apparatus

A pain sensory nerve stimulation apparatus includes: an electrode portion including: a first electrode, a tip end of which is adapted to be inserted into a skin; and at lease one second electrode which is disposed in a circumference of the first electrode without being electrically conductive with the first electrode, and which is adapted to be in contact with a skin; and a pulse signal supplier, supplying a pulse signal in which an electrical polarity of the first electrode is set as a anode and an electrical polarity of the second electrode is set as a cathode.

A vascular endothelial function inspection apparatus includes a first cuff that is mounted to a first part of a subject, a cuff pressure control unit that controls a pressure applied to the first cuff, a pressure sensor that is connected to the first cuff, a cuff pressure detection unit that detects a cuff pressure from an output of the pressure sensor, a pulse wave detection unit that detects pulse waves from the output of the pressure sensor, a blood pressure measuring unit that measures a blood pressure value based on the cuff pressure and the pulse waves, a storage unit that stores therein an elasticity index value indicating an elasticity of a blood vessel of the subject, and an analysis unit that performs data processing for evaluating an endothelial function of the blood vessel.

Vascular endothelial function inspection apparatus

A pain sensory nerve stimulation apparatus includes: a stimulation electrode which is adapted to be attached to a living body, at least one of an exogenous algesic substance and pyrogen which is to be interposed between the living body and the stimulation electrode; and a stimulation power supplier which is configured to supply electric power to the stimulation electrode.

A biological information displaying apparatus includes an analyzing unit and a display unit. The analyzing unit analyzes measured continuous biological information waveforms to detect abnormal biological information waveforms. The display unit simultaneously displays a first waveform group consisting of continuous biological information waveforms including an abnormal biological information waveform which is produced initially in abnormal biological information waveforms that are produced in a duration when the abnormal biological information waveforms detected by the analyzing unit are continued and a biological information waveform which is produced just before the production of the initial abnormal biological information waveform, and a second waveform group consisting of continuous biological information waveforms including an abnormal biological information waveform which is last produced and a biological information waveform which is produced just after the production of the last abnormal biological information waveform.

Biological information displaying apparatus and biological information displaying method

A rehabilitation assistance system includes a peg board, a peg to be placed on the peg board by a subject, and a position information acquisition unit that acquires position information indicating a position of the peg relative to a predetermined position on the peg board. The position information acquisition unit includes a sensor provided on at least one of the peg and the peg board, and the position information acquisition unit acquires the position information based on an output from the sensor.

Rehabilitation assistance system

An airway adaptor includes: an airway case including a gas passage, the airway case adapted to be attachable to a part of a carbon dioxide sensor configured to detect a concentration of carbon dioxide contained in exhalation, flowing into the gas passage, of the subject, the exhalation; a nasal cannula having a pair of insertion portions inserted into nostrils of the subject to guide exhalation from the nostrils to the gas passage; a mouth guide placed in front of a mouth of the subject to guide exhalation from the mouth to the gas passage; a light-emitting element supported by one of the insertion portions; and a light-receiving element supported by the other of the insertion portions. When the insertion portions are inserted into the nostrils, the light-emitting element and the light-receiving element are opposed to each other across a nasal septum of the subject.

Airway adaptor and biological information acquiring system

A sensor main unitis axially split into three sub-segments. A light-emitting elementis attached to one end portion, and a light-receiving elementis attached to the other end portion. A respiratory flow pathis formed so as to penetrate through the center portion. The sensor main unitis attached to a position on the face below the nostrils, and respiratory gas from the nostrils is guided into the respiratory flow pathand is caused to cross over the optical axis connected the light-emitting elementand the light-receiving element, thereby measuring a carbon dioxide gas in the respiratory gas.

Sensor for measuring carbon dioxide in respiratory gas

A blood oxygen saturation measuring apparatus includes: a light emitter adapted to emit, to living tissue of a subject, at least two light beams which have different wavelengths from each other; a light receiver adapted to receive the light beams which are transmitted through or reflected from the living tissue, the light receiver which converts the received light beams to electric signals corresponding to receiving intensities of the light beams, respectively; an extractor which extracts frequency components corresponding to changes of the receiving intensities according to a variation of a blood volume of a vein in the living tissue due to respiration of the subject, from the electric signals, respectively; an attenuation ratio calculator which calculates a first attenuation ratio based on amplitudes of the extracted frequency components; and an oxygen saturation calculator which calculates a first blood oxygen saturation in the vein based on the first attenuation ratio.

Blood oxygen saturation measuring apparatus

An autonomic nerve activity measuring apparatus includes: a pulse wave acquiring unit, configured to acquire at least two pulse wave signals from a living body; an electric stimulation unit, configured to apply electric stimulation to the living body; a comparison unit, configured to compare the pulse wave signals acquired by the pulse wave acquiring unit; and an analysis unit, configured to analyze comparison result provided by the comparison unit.

Autonomic nerve activity measuring apparatus and autonomic nerve activity measuring method

In a sensor for detecting a carbon dioxide gas in an expiration gas of a living body, an airway case is adapted to be disposed below nostrils of the living body, and formed with an airway passage extending across an optical axis of a light beam emitted from a right emitter of the sensor. A mouth guide is adapted to be disposed in front of a mouth of the living body so as to define a space communicated with the airway passage. The mouth guide is pivotably supported on the airway case. A retainer is adapted to retain an oxygen supply tube on the airway adapter body in such an attitude that an oxygen gas supplied from prongs of the oxygen supply tube is not directly injected into the nostrils.

Carbon dioxide sensor and airway adapter incorporated in the same

In a sensor for detecting a carbon dioxide gas in an expiration gas of a living body, an airway case is adapted to be disposed below nostrils of the living body, and formed with an airway passage extending across an optical axis of a light beam emitted from a light emitter of the sensor. A mouth guide is adapted to be disposed in front of a mouth of the living body so as to define a space communicated with the airway passage. The mouth guide is pivotably supported on the airway case. A retainer is adapted to retain an oxygen supply tube on the airway adapter body in such an attitude that an oxygen gas supplied from prongs of the oxygen supply tube is not directly injected into the nostrils.

A magnetic levitating transportation apparatus including rails and a vehicle capable of travelling along the rails by a linear motor and caused to magnetically levitate by magnet units with electro-magnets. The gap is controlled by controlling the current supplied to the magnet units in response to gap sensors. The rails include rail gaps where the ends of two rail elements abut, and rail gap sensors are arranged to detect the rail gap. Thus, current supplied to one of the magnet units is disabled when the rail gap is detected, and the current to be supplied to the associated magnet unit is stopped. The current to be supplied to the associated magnet unit is determined from the outputs of the remaining gap sensors.

Growing community of inventors

Tokyo, Japan

Yoshinobu Ono