Colin Corporation

Fukuda Denshi Co., Ltd.

Colin Medical Technology Corporation

Tomohiro Nunome

Toshihiko Ogura

Hidekatsu Inukai

Akihiro Yokozeki

Hideo Nishibayashi

Keizoh Kawaguchi

Hidenori Suzuki

Kiyoyuki Narimatsu

Takehito Fukunaga

Disclosed is a sphygmomanometer exhaust valve having a valve that functions as a lever, and in which a solenoid moves the point of force of the valve to urge a valve membrane formed at the point of action against a ventilation port. A support member supports the valve while fixing its fulcrum. When no electric current is supplied to the solenoid, the support member holds the valve in a predetermined position in which the ventilation port is open.

Sphygmomanometer exhaust valve and sphygmomanometer using the same

A blood pressure measuring apparatus to measure blood pressure based on a change in a pressure by a cuff mounted to a subject comprises: cuff pressure controlling means for deflating the cuff after avascularization by the cuff at a body part around which the cuff is placed; detecting means for detecting the change in a pressure by the cuff and outputting the detection as an electrical signal; extracting means for extracting a pulse wave signal from the electrical signal; and calculating means for calculating a systolic blood pressure value and a diastolic blood pressure value based on a relation between a change rate of an index value which is calculated by multiplying a maximum amplitude of each pulse of the pulse wave signal by the cuff pressure corresponding to the maximum amplitude and a predetermined value. The blood pressure measuring apparatus achieves a high-speed measurement while suppressing the reduction of accuracy.

Blood pressure measuring apparatus

An apparatus for measuring an inferior-and-superior-limb blood-pressure index of a patient, including an inferior-limb blood-pressure measuring device, a superior-limb blood-pressure measuring device, an index determining device for determining the inferior-and-superior-limb blood-pressure index, based on a blood pressure of an inferior limb measured by the inferior-limb blood-pressure measuring device and a blood pressure of a superior limb measured by the superior-limb blood-pressure measuring device, an inferior-limb-pulse-wave-propagation-velocity-related-information, obtaining device which obtains inferior-limb-pulse-wave-propagation-velocity-related information, an upper-half-body-pulse-wave-propagation-velocity-related-information obtaining device which obtains upper-half-body-pulse-wave-propagation-velocity-related information, and an evaluation-information obtaining device for obtaining, based on the inferior-limb-pulse-wave-propagation-velocity-related information and the upper-half-body-pulse-wave-propagation-velocity-related information, evaluation information that is related to evaluation of reliability of the inferior-and superior-limb blood-pressure index.

Inferior-and-superior-limb blood-pressure-index measuring apparatus

An apparatus for measuring a blood pressure of a living subject, including an inflatable cuff which has an inside surface adapted to contact a body surface of the subject and an outside surface exposed to an ambient air, and which is adapted to be wound around a portion of the subject to press the portion of the subject, a temperature sensor which is provided in the inside surface of the cuff and detects, in a state in which the cuff is wound around the portion of the subject, a temperature of the portion of the subject, and a display device which displays the temperature of the portion of the subject detected by the first temperature sensor.

Blood-pressure measuring apparatus and inferior-and-superior-limb blood-pressure-index measuring apparatus

An apparatus for measuring a blood pressure of a superior limb or an inferior limb of a living subject, including a blood-pressure measuring device which includes a measuring member adapted to be worn on a measurement portion of the superior or inferior limbs and measures a blood pressure of the measurement portion, and a pressing device which includes a pressing member adapted to be worn on the measurement portion or a distal portion of the subject relative to the measurement portion, and which presses the pressed portion with a prescribed blood-flow promoting force that is lower than a systolic blood pressure of the subject.

A blood pressure monitor apparatus for monitoring a blood pressure of a living subject, comprising: pulse-wave-propagation-velocity-relating information obtaining means for successively obtaining pulse-wave-propagation-velocity-relating information which relates to a pulse-wave propagation velocity at which a pulse wave propagates in an artery of the subject; pulse-period-relating information obtaining means for successively obtaining pulse-period-relating information which relates to a pulse period of the subject; peripheral-blood-volume-relating information obtaining means for successively obtaining peripheral-blood-volume-relating information which relates to a volume of blood which flows in a peripheral body portion of the subject; and abnormality judging means for judging that the blood pressure of the subject is abnormal when at least one of the pulse-wave-propagation-velocity-relating information, pulse-period-relating information, and peripheral-blood-volume-relating information does not fall within a corresponding one of a first, a second and a third reference range.

Blood pressure monitor apparatus

An apparatus for detecting a patient, including a plurality of pressure detecting devices which are adapted to be placed on a bed such that the pressure detecting devices are arranged in a widthwise direction of the bed, and which detect respective pressures and produce respective pressure signals representing the detected pressures, and a position detecting device for detecting, based on the pressure signals supplied from the pressure detecting devices, a position, in the widthwise direction of the bed, where the patient is present.

Patient detecting apparatus

An apparatus for measuring an inferior-and-superior-limb blood-pressure index of a living subject, including an inferior-limb blood-pressure measuring device, a superior-limb blood-pressure measuring device, an index determining means for determining the inferior-and-superior-limb blood-pressure index, based on a systolic blood pressure of an inferior limb, measured by the inferior-limb blood-pressure measuring device and a systolic blood pressure of a superior limb, measured by the superior-limb blood-pressure measuring device, an estimated-inferior-limb-systolic-blood-pressure determining means for determining an estimated systolic blood pressure of the inferior limb, an estimated-superior-limb-systolic-blood-pressure determining means for determining an estimated systolic blood pressure of the superior limb, and a cuff-pressure control means for controlling at least one of respective pressures of the inferior-limb cuff and the superior-limb cuff, such that when the respective pressures of an inferior-limb cuff and a superior-limb cuff are decreased, the respective pressures of the inferior-limb cuff and the superior-limb cuff become equal to the respective estimated systolic blood pressures of the inferior limb and the superior limb, at the same time.

An apparatus for measuring a superior-and-inferior-limb blood-pressure index of a living subject, including a first blood-pressure measuring device which measures a first blood pressure of a right inferior limb of the subject, a second blood-pressure measuring device which measures a second blood pressure of a left inferior limb of the subject, a third blood-pressure measuring device which measures a third blood pressure of a superior limb of the subject, a first information obtaining device which obtains first information relating to a first velocity of propagation of a first pulse wave which propagates through a first route a portion of which runs in the right inferior limb, a second information obtaining device which obtains second information relating to a second velocity of propagation of a second pulse wave which propagates through a second route a portion of which runs in the left inferior limb, a selecting device for selecting one of the measured first and second blood pressures that corresponds to one of the first and second information that relates to a lower one of the first and second velocities, and an index determining device for determining the superior-and-inferior-limb blood-pressure index, based on the selected one of the first and second blood pressures, and the measured third blood pressure.

Superior-and-inferior-limb blood-pressure index measuring apparatus and inferior-limb blood-pressure measuring apparatus

A remote diagnosis system including a patient-side device including a physical-information obtaining device which obtains a piece of current physical information from a patient, a plurality of doctor-side devices which are provided in a plurality of medical institutions, respectively, that are remote from the patient-side device and each of which can receive the piece of current physical information of the patient from the patient-side device, a preliminary-diagnosis device for making, based on the piece of current physical information obtained by the physical-information obtaining device, a preliminary diagnosis about whether the patient needs a proper diagnosis to be made by a doctor, and a physical-information transmitting device for transmitting, when the preliminary-diagnosis device makes a preliminary diagnosis that the patient needs a proper diagnosis to be made by a doctor, the piece of current physical information to at least one selected doctor-side device out of the plurality of doctor-side devices.

Remote diagnosis system

A device for monitoring the blood pressure of a living subject, including a pulse-wave-propagation-velocity-relating information obtaining device for successively obtaining pulse-wave-propagation-velocity-relating information which relates to a pulse-wave propagation velocity at which a pulse wave propagates in an artery of the subject, a pulse-period-relating information obtaining device for successively obtaining pulse-period-relating information which relates to a pulse period of the subject, a peripheral-blood-volume-relating information obtaining device for successively obtaining peripheral-blood-volume-relating information which relates to a volume of blood which flows in a peripheral body portion of the subject, and an abnormality judging device for judging that the blood pressure of the subject is abnormal when at least one of the pulse-wave-propagation-velocity-relating information, pulse-period-relating information, and peripheral-blood-volume-relating information does not fall within a corresponding one of a first, a second and a third reference range.

A blood-pressure measuring apparatus including a cuff having an inflatable bag, a first pulse-wave sensor which detects a first pulse wave propagated to the bag, a second pulse-wave sensor which detects a second pulse wave propagated to a downstream-side portion of the cuff wound around a body portion of a subject in a direction of flow of blood in an artery of the body portion, an amplitude correcting device for correcting a first group of respective amplitudes of heartbeat-synchronous pulses of the first pulse wave and/or a second group of respective amplitudes of heartbeat-synchronous pulses of the second pulse wave, so that one or more amplitudes of the first group that correspond to one or more pulses of the first pulse wave that are detected while the flow of blood is stopped by the inflated bag is equal to one or more amplitudes of the second group that correspond to one or more pulses of the second pulse wave that are detected while the flow of blood is stopped by the bag, an amplitude-difference determining device for determining, after the correction, a difference between each of the amplitudes of the first group and a corresponding one of the amplitudes of the second group, and a blood-pressure determining device for determining a blood pressure of the subject based on the respective differences between the respective amplitudes of the first group and the corresponding amplitudes of the second group.

Blood-pressure measuring device

An apparatus for measuring a superior-and-inferior-limb blood-pressure (&ldquo;BP&rdquo;) index of a living subject, including an inferior-limb BP measuring device which includes a first inflatable cuff adapted to be wound around an inferior limb of the subject and which measures an inferior-limb BP value of the subject based on a first pulse wave obtained while a first pressure of the first cuff is changed, a superior-limb BP measuring device which includes a second inflatable cuff adapted to be wound around a superior limb of the subject and which measures a superior-limb BP value of the subject based on a second pulse wave obtained while a second pressure of the second cuff is changed, a cuff-pressure changing device which changes the first and second pressures of the first and second cuffs, such that a time when the first pressure being changed becomes equal to an estimated inferior-limb BP value coincides with a time when the second pressure being changed becomes equal to an estimated superior-limb BP value, and an index determining device for determining the BP index of the subject, based on the inferior-limb and superior-limb BP values measured by the inferior-limb and superior-limb BP measuring devices while the first and second pressures of the first and second cuffs are changed by the cuff-pressure changing device.

Superior-and-inferior-limb blood-pressure index measuring apparatus

An apparatus for obtaining an information relating to a propagation velocity of a pulse wave which propagates through an artery of a living subject, including: a first signal detecting device which is adapted to be worn on a first portion of the subject and which detects a first signal generated from the first portion in synchronism with a heart beat of the subject; a pulse-wave detecting device which is adapted to be worn on a second portion of the subject and which detects, as a second signal, a notch of the pulse wave generated from the second portion in synchronism with the heart beat of the subject; a pressing device which is adapted to be worn on a third portion of the subject to press the third portion, the third portion being on a downstream side relative to the second portion with respect to the artery and being in proximity to the second portion; and pulse-wave propagation time determining means for determining, as the information, a time difference between a time when the first signal is detected by the first signal detecting device and a time when the notch of the pulse wave is detected by the pulse-wave detecting device in a state in which the third portion is pressed by the pressing device.

Growing community of inventors

Komaki, Japan

Tomohiro Nunome