Colin Electronics Co., Ltd.

Nippon Colin Co., Ltd.

Nippon Collin Co., Ltd.

Masahiro Uemura

Chikao Harada

Hifumi Yokoe

Hideichi Tsuda

Kenichi Sakurado

Tokuji Hayakawa

Tsunehito Kakumu

Tsunehito Kakamu

Hideo Nishibayashi

Hitoshi Hirano

Satoru Taniguchi

Yoshimasa Kondo

Blood pressure monitoring system

An apparatus for automatically measuring a blood pressure of a subject, including a pressing device for pressing a body portion of the subject, such as an upper arm; a first blood pressure measuring device for detecting pulse sounds which are produced from the body portion as the pressing force of the pressing device is varied, and determining a first blood pressure (BP) value of the subject based on at least one of an appearance and a disappearance of the pulse sounds; a second blood pressure measuring device for detecting an oscillatory pressure wave which is produced from the body portion in synchronization with heartbeat of the subject as the pressing force of the pressing device is varied, and determining a second BP value of the subject based on variation in magnitude of the oscillatory pressure wave; and a judging device for judging at least one of the first and second blood pressures to be abnormal if a degree of inequality between the first and second blood pressures exceeds a reference value.

Automatic blood-pressure measuring apparatus

An automatic blood pressure measuring apparatus, including an inflatable cuff having an elongate configuration, the inflatable cuff being wound around a body portion of a subject, for pressing an arterial vessel of the subject via a body surface over the arterial vessel, a detecting device for detecting at least one Korotkoff sound produced from the arterial vessel as the pressing force of the inflatable cuff applied to the arterial vessel is varied, and a determining device for determining at least one blood pressure value of the subject based on the detected at least one Korotkoff sound, the detecting device being located in a middle area, as viewed in a direction of width of the inflatable cuff, of an inner surface of the inflatable cuff which surface contacts the body portion of the subject.

Automatic blood pressure measuring apparatus

An automatic blood pressure measuring apparatus including an occluding device having a cuff to apply a pressure to a body member of a subject, and a blood-pressure determining device to determine a blood pressure according to a variation in a pulse wave in relation to a change in the cuff pressure. The apparatus comprises a detector for monitoring a blood circulatory system of the subject, and generating signals representing an abnormality associated with the circulatory system. The apparatus further comprises a control device for actuating the occluding device to apply the cuff pressure to the body member, and causing the blood-pressure determining device to execute a predetermined series of blood-pressure measuring steps to measure the blood pressure, thereby permitting an automatic measurement of the blood pressure of the subject when the blood circulatory system is found abnormal by the detector.

Apparatus for automatically measuring blood pressure

Blood pressure measuring method and an apparatus applicable therefor, wherein a graph indicating the relation between pressure in a cuff which is variable in the measurement process and magnitude of pulse waves generated from a part of a human body under the pressure of the cuff is described, and a mark is given for indicating the cuff pressure at a blood pressure measuring point on to the graph, for allowing judgement whether the measured data are appropriate or not by comparison of the distribution condition of the magnitude of the pulse waves and the position of the mark. Even when noises difficult to be discriminated in the circuit only should be mingled into the pulse waves so as to automatically proceed the measurement, the erroneous measurement caused by the noises can be judged by the above comparison so that the error data can be excluded or cancelled.

Method and apparatus for blood pressure measurement

A method of using a sphygmomanometer having a built-in arrhythmia detecting mechanism, wherein the blood pressure measuring portion contains a pulsation detector, which receives pulse sounds including Korotkoff sounds for electrically converting the pulse sounds into wave form signals of the vascular pulse wave and output the same, and a mechanism indicating the blood pressure value by means of detecting the Korotkoff sounds recognized and separated from the wave form signals of the vascular pulse wave output in the above-mentioned way; the incorporated arrhythmia detecting mechanism receives the wave form signals of the vascular pulse wave for comparing the cycle of the wave form signals with a predetermined criterion in order to electrically detect irregularities, if any, in the signals for detecting the existence of arrhythmias. This sphygmomanometer is capable of measuring the blood pressure simultaneously with the detecting of arrhythmia.

Method of arrhythmia detection with detecting mechanism

A sphygmomanometer having a built-in arrhythmia detecting mechanism, wherein the blood pressure measuring portion contains a pulsation detector, which receives pulse sounds including Korotkoff sounds for electrically converting the pulse sounds into wave form signals of the vascular pulse wave and output the same, and a mechanism indicating the blood pressure value by means of detecting the Korotkoff sounds recognized and separated from the wave form signals of the vascular pulse wave output in the above-mentioned way; the incorporated arrhythmia detecting mechanism receives the wave form signals of the vascular pulse wave for comparing the cycle of the wave form signals with a predetermined criterion in order to electrically detect irregularities, if any, in the signals for detecting the existence of arrhythmias. This sphygmomanometer is capable of measuring the blood pressure simultaneously with the detecting of arrhythmia.

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Komaki, Japan

Masahiro Uemura