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1. 发明专利

JPH10314129A AUTOMATIC BLOOD PRESSURE MEASURING INSTRUMENT WITH PULSE WAVE PROPAGATION SPEED INFORMATION MEASURING FUNCTION 失效
公开(公告)号：JPH10314129A
公开(公告)日：1998-12-02
申请号：JP13314297
申请日：1997-05-23
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , OKA SUSUMU , IGAWA TOMOKO
IPC分类号： A61B5/02 , A61B5/0205 , A61B5/022
摘要： PROBLEM TO BE SOLVED: To improve the measurement precision of pulse wave propagation speed information as much as possible in an automatic blood pressure measuring instrument with a pulse wave propagation speed information measuring function, by which the blood pressure value of aliving body is decided based on a heart beat synchronizing signal generated from the living body in process where the oppressive pressure of a cuff wound around a part of the living body is changed. SOLUTION: When the electrocardi-guide waveform of the living body is detected by an electrocardi-guide device 70 through an electrode which is brought into contact with the living body and the cuff pulse wave of the living body is detected by a pressure sensor 40, time difference TDRP from the R-wave of the electrocardi-guide waveform till the lower peak point of cuff pulse wave is calculated by a time difference calculating means 82 and a propagation speed calculating means 84 calculates cuff pulse wave propagation speed VM1 based on the time difference TDRP. Then, the average value of the three beat portion of cuff pulse wave propagation speed VM1 which is successively calculated after judgement that the change value of the propagation speed VM1 is equal to below a prescribed value by a change value judging means 86, is decided as the propagation speed VM2 of pulse wave which is propagated in the artery of the living body in a propagation speed deciding means 87.

2. 发明专利

JPH10328150A PULSE WAVE PROPAGATION SPEED INFORMATION MEASURING INSTRUMENT 失效
公开(公告)号：JPH10328150A
公开(公告)日：1998-12-15
申请号：JP14213197
申请日：1997-05-30
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , IGAWA TOMOKO
IPC分类号： A61B5/02 , A61B5/022 , A61B5/0245
摘要： PROBLEM TO BE SOLVED: To highly accurately measure pulse wave propagation speed information such as pulse wave propagation speed or pulse wave propagation time in spite of how much the arteriosclesis of person to be measured are hardened. SOLUTION: Concerning this instrument, a maximum inclined line determining means 86 determines a maximum inclined line LKmax passing a maximum inclination point Kmax of heartbeat synchronizing wave and having the inclination of that maximum inclination point Kmax and a base line determining means 88 determines a base line BL connecting the rising side minimum point and falling side minimum point of heartbeat synchronizing wave. Then, a reference point determining means 90 determines an intersection TS of these maximum inclined line LKmax and base line BL as a reference point TS for measuring the pulse wave propagation speed. Therefore, since the reference point TS is determined so as not to be affected by reflected waves in pulse waves, the setting position of reference point TS is not dispersed even for the person to be measured which advances arteriosclerosis.

3. 发明专利

JPH09201342A PULSE WAVE PROPAGATION SPEED MEASURING DEVICE 失效
公开(公告)号：JPH09201342A
公开(公告)日：1997-08-05
申请号：JP1061996
申请日：1996-01-25
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , IGAWA TOMOKO
IPC分类号： A61B5/02 , A61B5/022 , A61B5/0245
摘要： PROBLEM TO BE SOLVED: To provide a pulse wave propagation speed measuring device in which high measuring precision is maintained regardless of the degree of arteriosclerosis in a subject person. SOLUTION: A maximum inclination line determining means 86 determines the maximum inclination line LKmax passing the maximum inclination point Kmax of heartbeat synchronous waves, and having an inclination of the maximum inclination point Kmax , and a base line determining means 88 determines a base line BL connecting the minimum point on the rising side of hearbeat synchronous waves and the minimum point on the falling side. A reference point determining means 90 determines an intersection P1 of the maximum inclination line LKmax with the base line BL as a reference point TS to measure pulse wave propagation speed. The reference point TS without having effects of reflection waves in pulse waves can thus be determined, so irregularity is not generated for a set position of the reference point TS even for a subject person of arteriosclerosis in an advanced stage.

4. 发明专利

JPH09140679A AUTOMATIC SPHYGMOMANOMETER WITH MEASURING FUNCTION OF PULSE WAVE PROPAGATION VELOCITY 失效
公开(公告)号：JPH09140679A
公开(公告)日：1997-06-03
申请号：JP30735395
申请日：1995-11-27
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , OKA SUSUMU , IGAWA TOMOKO
IPC分类号： A61B5/022 , A61B5/0245
摘要： PROBLEM TO BE SOLVED: To improve the accuracy on measurement or purse wave propagation velocity as possible in an automatic sphygmomanometer with a measuring function of pulse wave propagation velocity for determining a blood pressure of an organism based on heart beat synchronized signal generated from the organism in process for varying the pressure of a cuff wound on part of the organism. SOLUTION: After induced wave forms of an organism is detected by an electrocardiograph apparatus 70 through electrodes attached to the organism and cuff wave forms of the organism are detected by a pressure sensor 40, a time difference TDRP till the down peak point of the pulse wave from R wave of the induced wave forms is determined by a time difference calculating means 82 and a propagation velocity VMI of cuff pulse wave is calculated by a propagation velocity calculating means 84 based on the time difference TDRP. Then, since the variation in the propagation velocity VM1 is judged to be lower than a given value by a variation decision means 86, a mean value of three pulses of the propagation velocity VM1 of cuff pulse wavesusccesively calculated, is decided to be a propagation velocity VM2 of the pulse wave propagating in artery of the organism by a propagation speed decision means 87.

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