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101. 发明专利

JPH11113860A CARDIAC FUNCTION MONITORING DEVICE 失效
公开(公告)号：JPH11113860A
公开(公告)日：1999-04-27
申请号：JP27633897
申请日：1997-10-09
申请人： NIPPON COLIN CO LTD
发明人： TANAKA YOSHIBUMI , SHIGEMI KENJI , HAYASHI KAZUKO
IPC分类号： A61B5/0205 , A61B5/0402
摘要： PROBLEM TO BE SOLVED: To provide a cardiac function monitoring device which non-invasively and easily monitor a cardiac machine efficiency or a left ventricular endo- systolic elastance. SOLUTION: When a pressure-volume loop drawn per pulse approximates to a rectangle composed of a systolic constant pressure line and a diastolic constant pressure line which are two sides parallel to a volume axis, and a systolic constant volume line and a diastolic constant volume line which are two sides parallel to a pressure axis, a cardiac machine efficiency Ea /Ees is calculated by the cardiac machine efficiency calculation means 88 based on the pre-ejection period PEP found by a pre-ejection period calculation means 84 at every pulse and the ejection period LVET found by an ejection period calculation means 86 at every pulse according to the preset relation shown by a numerical formula 1 based on the fact that the ratio of the aortic effective elastance Ea and the left ventricular ends systolic elastance Ees , namely the cardiac machine efficiency Ea /Ees approximates to the ratio PEP/LV of the pre-ejection time PEP to the ejection period LVET of the heart. This device can thus easily and non-invasively monitor the cardiac function.

102. 发明专利

JPH11104113A PERIPHERAL CIRCULATION MEASURING SYSTEM 失效
公开(公告)号：JPH11104113A
公开(公告)日：1999-04-20
申请号：JP26637297
申请日：1997-09-30
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , INUKAI HIDEKATSU , WAKAMIYA HIROYUKI
IPC分类号： A61B5/145 , A61B5/00 , A61B5/01 , A61B5/0245 , A61B5/026 , A61B5/1455 , A61B5/1491 , A61B5/14
摘要： PROBLEM TO BE SOLVED: To enable to objectively detect a peripheral circulation condition, by warming a prescribed position by a warmer to increase blood circulation at the prescribed position of an organism and displaying changes of blood circulation optically detected by a blood increment detecting device on a diagram along a prescribed time axis as time elapses. SOLUTION: When a peripheral circulation condition measurement mode is selected, a second light emitting element 20 of a blood increment detecting device, a reflection type probe 12, is made to continuously emit light at comparatively high output. A time variable for counting the warming time, i.e., elapsed time T, is incremented and, when the elapsed time reached prescribed time T1 , the change of blood increment to before warming the warmed position is shown by a diagram as time elapsed in two dimensional coordinates comprising a blood increment axis and a time axis and displayed on a display 56. An evaluation value to express a peripheral circulation condition of an organism is calculated and displayed at a prescribed position of the display 56.

103. 发明专利

JPH1189808A PERIPHERAL CIRCULATION STATE MEASURING INSTRUMENT 失效
公开(公告)号：JPH1189808A
公开(公告)日：1999-04-06
申请号：JP25086397
申请日：1997-09-16
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , INUKAI HIDEKATSU , WAKAMIYA HIROYUKI
IPC分类号： A61B5/026
摘要： PROBLEM TO BE SOLVED: To provide a peripheral circulation state measuring instrument by which the peripheral circulation state of a living body can be objectively recognized without requiring skill. SOLUTION: When the pressure of an arm band 10 to be functioned as a pressurizing device is canceled and the congestion of blood at the prescribed part of the living body is finished, the change of blood recovery quantity (amplitude or area of photoelectric pulse wave) B optically detected by a photoelectric pulse wave sensor (blood recovery quantity detector) 46 is displayed as a graph with the passage of time along with the prescribed time base by a blood recovery quantity display means 60 so that the change level of blood recovery quantity B to recover toward a value before the congestion of blood can be objectively provided from this graph display. Thus, the peripheral circulation state of the living body can be objectively recognized without requiring skill.

104. 发明专利

JPH1156799A CAROTID ARTERIAL PRESSURE WAVE DETECTING DEVICE 失效
公开(公告)号：JPH1156799A
公开(公告)日：1999-03-02
申请号：JP22625697
申请日：1997-08-22
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , INUKAI HIDEKATSU
IPC分类号： A61B5/0245
摘要： PROBLEM TO BE SOLVED: To provide a carotid arterial pressure wave detecting device capable of easily detecting the carotid arterial pressure wave. SOLUTION: In this device, a carotid arterial pressure wave signal SA showing the pressure in a carotid artery is generated by deducting DC components (DCa+DCc)/2 of pressure signals SPa, SPc outputted from pressure sensors 58a, 58c placed apart from the carotid artery from a pressure signal SPb outputted from a pressure sensor 58b placed right above the carotid artery among the plural pressure sensors 58a, 58b, 58c by carotid arterial pressure wave signal generating means (an arithmetic and control circuit 82) in a state where a housing is mounted on a neck of a living body such that the plural pressure sensors 58a, 58b, 58c are arranged in a direction crossing the carotid artery by a holding device functioning as a housing mounting device. Thereby, the carotid arterial pressure wave signal SA showing the pressure in the carotid artery relatively precisely can be easily detected.

105. 发明专利

JPH1133007A WRIST FIXING DEVICE FOR DETECTING PRESSURE PULSE WAVE 失效
公开(公告)号：JPH1133007A
公开(公告)日：1999-02-09
申请号：JP18851097
申请日：1997-07-14
申请人： NIPPON COLIN CO LTD
发明人： OKA SUSUMU
IPC分类号： A61B5/0245
摘要： PROBLEM TO BE SOLVED: To provide a wrist fixing device for detecting pressure pulse waves, that enables pressure pulse waves to be detected stably as the pressed state of a pressure pulse wave sensor against the radial artery is unaffected by finger movements. SOLUTION: A hand 26 is locked in place by a wrist fixing device 10 for detecting pressure pulse waves, with the wrist 12 bent, the arm 24 of the subject locked in place, and the insides of the fingers and the palm of the hand 26 pressed against a grip 20. Under these conditions, a pressure pulse wave sensor is worn on the wrist 12 to detect pressure pulse waves from the radial artery. Hence, because the fingers of the hand 26 are restrained by the grip 20 during detection of pressure pulse waves, changes in the pressed state of the pressure pulse wave sensor against the radial artery due to the movements of the fingers do not occur, and pressure pulse waves can be detected stably.

106. 发明专利

JPH10337282A REFLECTION TYPE OXYGEN SATURATION DEGREE MEASURING DEVICE 失效
公开(公告)号：JPH10337282A
公开(公告)日：1998-12-22
申请号：JP10050397
申请日：1997-04-17
申请人： NIPPON COLIN CO LTD
发明人： TAKATANI SETSUO , NOGAWA MASAMICHI , SAKAI HIROSHI , NISHIBAYASHI HIDEO
IPC分类号： G01N33/49 , A61B5/145 , A61B5/1455 , A61B5/14
摘要： PROBLEM TO BE SOLVED: To provide an oxygen saturation degree measuring device which has a high measuring accuracy even in a relatively low oxygen-saturation-degree range, e.g. 80% or less. SOLUTION: The wavelength of light output from a first light emission element 18 is set in the range from 715 to 770 nm as a first wavelength λ1 at which absorption coefficient varies according to the degree of oxygen saturation of blood, and a second wavelength λ2 is set in the range from 880 to 940 nm; because the wavelength λ1 is shorter than the second wavelength λ2 , it is more likely to be scattered, and light of the wavelength λ1 can fully reach a blood vessel floor where capillaries exist. Therefore, since a broken line showing the actual degree of oxygen saturation SaO2 and a rectilinear approximate line indicated by the true line are approximate to each other even in a relatively low oxygen saturation degree region, the accuracy of the degree of oxygen saturation SaO2 of a living body, calculated from a predetermined relationship and on the basis of the ratio R of the alternate-to-direct component ratio (AC/DC)R of a first light signal to the alternate-to-direct component ratio (AC/DC)IR of a second light signal by an oxygen saturation degree calculation means 74 which uses the rectilinear approximate line as the preset relationship, is enhanced favorably.

107. 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.

108. 发明专利

JPH10243928A BLOOD PRESSURE MONITORING DEVICE 失效
公开(公告)号：JPH10243928A
公开(公告)日：1998-09-14
申请号：JP5000397
申请日：1997-03-05
申请人： NIPPON COLIN CO LTD
发明人： INUKAI HIDEKATSU , OGURA TOSHIHIKO
IPC分类号： A61B5/022
摘要： PROBLEM TO BE SOLVED: To provide a blood pressure monitoring device capable of bringing a blood pressure decision time point and the obtaining time point of pulse wave propagation speed information as close as possible and further improving monitoring blood pressure accuracy. SOLUTION: Since correspondence relation is decided based on the pulse wave propagation speed information (pulse wave propagation time DTRP) calculated by a pulse wave propagation information calculation means 74 within a period when the pressurizing pressure PC is lower than an average blood pressure value within the pressurizing period of a cuff 10 and a blood pressure value BSYS measured by a blood pressure measurement means 70 relating to pressurization by the cuff 10 in a correspondence relation decision means 76, the blood pressure decision time point and the obtaining time point of the pulse wave propagation speed information are brought as close as possible and the monitoring blood pressure accuracy is further improved.

109. 发明专利

JPH10216115A HIGHLY ACCURATE REFLECTION TYPE DEGREE OF OXYGEN SATURATION MEASURING APPARATUS 失效
公开(公告)号：JPH10216115A
公开(公告)日：1998-08-18
申请号：JP2361197
申请日：1997-02-06
申请人： NIPPON COLIN CO LTD
发明人： TAKATANI SETSUO , NOGAWA MASAMICHI , SAKAI HIROSHI , NISHIBAYASHI HIDEO
IPC分类号： G01N33/49 , A61B5/145 , A61B5/1455 , A61B5/14
摘要： PROBLEM TO BE SOLVED: To provide a reflection type degree of oxygen saturation measuring apparatus with a higher measuring accuracy. SOLUTION: The interval between a first light emitting element 18 and a second light emitting element 20 and a photodetector 16, namely, the radius (r) is set 5-7mm. Hence, back scattered light detected by the photo-detector 16 is made larger in proportion at a part larger in depth from the surface of a body, namely, a part higher in the density of a blood capillary. A larger ratio (ACR/DCR) or (ACIR/DCIR) between an AC component ACIR or ACR and a DC component DCR or DCIR reduces effect of noises. Moreover, a proper intensity of the first signal SVR and the second signal SVIR obtained achieves a sufficient stability and accuracy in the measurement of the degree of oxygen saturation SaO2.

110. 发明专利

JPH10201724A AUTOMATIC SPHYGMOMETER 失效
公开(公告)号：JPH10201724A
公开(公告)日：1998-08-04
申请号：JP768397
申请日：1997-01-20
申请人： NIPPON COLIN CO LTD
发明人： OGURA TOSHIHIKO , INUKAI HIDEKATSU
IPC分类号： A61B5/0225 , A61B5/022
摘要： PROBLEM TO BE SOLVED: To suitablly determine an objective pressure for pressing an organism even if the blood pressure of the organism may be largely changed compared to the last time. SOLUTION: A blood pressure of an organism is estimated from a previously set relationship based on transmission time Td of pulse wave transmitting in artery of the organism by an estimated blood pressure determining means 76, and an objective pressing value PM is determined by an objective pressure value determining means 78 based on an estimated blood pressure determined by an estimated blood pressure determining means 76; when the blood pressure is measured, a cuff pressure is quickly raised till the objective pressing value PM is reached. Therefore, on this apparatus, even if the blood pressure of the organism is largely changed compared to the blood pressure at the last time, regardless of the change of the last blood pressure in value, the objective pressing value PM for pressing the arm is suitably determined.

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