WO1980000005A1 - Systeme de mesure de la pression arterielle - Google Patents

Systeme de mesure de la pression arterielle Download PDF

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Publication number
WO1980000005A1
WO1980000005A1 PCT/JP1979/000143 JP7900143W WO8000005A1 WO 1980000005 A1 WO1980000005 A1 WO 1980000005A1 JP 7900143 W JP7900143 W JP 7900143W WO 8000005 A1 WO8000005 A1 WO 8000005A1
Authority
WO
WIPO (PCT)
Prior art keywords
cuff
sound
blood pressure
sounds
blood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1979/000143
Other languages
English (en)
Japanese (ja)
Inventor
Y Yamamura
T Ichinomiya
O Terashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Publication of WO1980000005A1 publication Critical patent/WO1980000005A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02208—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the Korotkoff method
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02233—Occluders specially adapted therefor

Definitions

  • the present invention relates to an improved blood pressure measuring instrument having improved accuracy of blood pressure measurement by improving the ability to identify a Korotkoff sound.
  • an electric circuit converts a Korotkoff sound generated by an ischemic effect of a cuff band that presses a blood vessel by receiving a supply of pressurized air into an electric signal.
  • a blood pressure measuring device that detects and displays the highest and lowest blood pressure values based on the onset and disappearance of the blood pressure, improvements have been made to the means for detecting changes in the internal air pressure in the cuff band and the means for processing the detected signals.
  • the present invention relates to a blood pressure measurement device with improved ability to identify a Korotkoff sound.
  • a force band is wrapped around the upper arm where the artery is located near the epidermis, and pressurized air is supplied into the cuff band at a speed of usually 20 to 30 'sec to increase the maximum systolic blood pressure by 10 to 20 miEg.
  • the pressurized air in the cuff is gradually evacuated. Then, the arterial blood flow begins to pass at a high speed, and this causes a damped oscillation with a higher frequency than the arterial wave in the lateral direction from the blood vessel wall in synchronization with the arterial wave. This damped vibration is called the Korotkoff sound.
  • the cuff pressure at the time when this Korotkoff sound starts to be generated is indirectly determined as the systolic blood pressure value.
  • the cuff belt mentioned above! If the evacuation of) is continued further, the mouth and mouth sound may be heard for a while in synchronization with the pulse sound of the artery, but the artery is sufficiently opened and the blood flow is reduced. When the robot is in a prone state without swelling, a Korotkoff sound is less likely to occur. Then, the force pressure at the time of disappearance of the mouth sound is determined indirectly as the diastolic blood pressure value. ⁇ The above situation can be clearly explained by referring to the drawing in Fig. 1].
  • the pulse sound, the Korotkoff sound, and the cuff pressure in the cuff band are The symbols (i) and (mouth) W are respectively shown, and the timing ti, respectively, indicates the timing of the onset and disappearance of the above-mentioned mouth-to-tone sound.
  • the force full pressure between the Timing of t 0 or we t 3 is raised at a maximum pressure until the pre-serial, power off band in data 'Lee Mi in g t 3 is rapidly pressurized
  • Appuku state is switched to the pressurized et slow exhaust state, in FIG shows the Timing of t 4 until in vibrating pressure Ru is decreased gradually.
  • the cuff pressure is mistakenly recognized as a krotkoff sound, and the cuff pressure at that time is updated and stored, and the determination of the diastolic blood pressure value is incorrect! ). It is extremely difficult to distinguish the detected Korotkoff sounds from noises or sounds that should not be detected, and these points are important factors for improving the reliability of the automatic blood pressure monitor. Disclosure of invention, which is an obstacle
  • a main object of the present invention is to provide a blood pressure measuring device capable of distinguishing between Korotkoff sounds and noise and improving the accuracy of blood pressure measurement.
  • Another object of the present invention is to provide a blood pressure measuring apparatus capable of maintaining blood pressure measurement accuracy irrespective of the position at which the cuff band is attached to the arm.
  • the fluctuation of the air pressure in the cuff is detected.
  • the separation means for separating the Korotkoff sound and the pulse sound detected by the sensing means and the separated sounds are simultaneously output.
  • the cuff band is formed by storing the sound force cuff together with the blood cuff in the outer bag, and the sensing means is arranged outside the cuff band, and a communication pipe is provided between the cuff band and the sound collection cuff.
  • the schematic configuration of the blood pressure measuring device of the present invention is such that the cuff band 1 is separate from the blood cuff 2 as shown in FIG.
  • the cuff 3 for sound collection prepared in the above is stored in an outer bag together with the cuff 2 for blood ischemia, and the cuff 2 for blood cuff is connected to the automatic decompression device 4 through the rubber tube 9.
  • the sound-collecting cuff 3 is connected to a micro-phone sensor ⁇ "5 outside the power band 1 through a rubber tube 10".
  • This microphone sensor 5 changes the atmospheric pressure in the sound collecting cuff 3, that is, the pulse sound (a) and the Korotkoff sound (mouth) as shown in FIG.
  • the automatic pressurizing / depressurizing device 4 is composed of a pressurizing pump, a quick exhaust valve, and a slow exhausting valve, and a blood pressure value storage / display unit 12 connected to the automatic pressurizing / depressurizing device 4. Is a recognition discrimination circuit 11
  • CVPI This is a device that stores and displays the pressure at that time in response to a command signal from it, and is composed of a pressure transducer, an A transducer, and a numeric display tube.
  • FIG. 3 shows a specific example of the recognition discrimination circuit 11, and FIG. 3 ⁇ shows the output of the microphone mouth sensor 5 which senses fluctuations in the atmospheric pressure in the sound collecting force 3.
  • Ri heavy tatami is Nodea was also of by cormorants to Myakuon and co-collected by filtration co-off sound, Myakuon this output and this through a high-pass full Note1 13 a low-pass off Lee Norre data I 4 Then, the Korotkoff sound is separated as shown in the figure.
  • the voltage comparator detects a pulse sound and generates a pass signal synchronized with the pulse sound, and W shown in the figure.
  • the voltage comparator ie detects the Krotkoff sound and detects the Krotkoff sound.
  • the blood pressure measuring device of the present invention detects a pulse sound simultaneously with a Korotkoff sound, and therefore, a force probe which has conventionally been used for blood ischemia and sound collection is used as a fourth signal.
  • a force probe which has conventionally been used for blood ischemia and sound collection is used as a fourth signal.
  • the sound collection cuff 3 is not communicated with the blood cuff 2 and is formed as an independent hermetically sealed structure to prevent low-frequency pressure fluctuations such as pulse sounds from the microphone mouth sensor (5). ) So that it can be detected.
  • a flexible sheet 6 such as cloth, soft PVC, or the like is interposed between the blood-absorbing force 2 and the sound-collecting force 3, and both surfaces thereof are bonded with an adhesive. Both cuffs 2 and 3 are attached.
  • the sound collecting membrane 3 'of the sound collecting cuff 3 and the membrane 3' opposite to the sound collecting membrane 3 ' are given stiffness so that a low-frequency sound such as a pulse sound is generated on this surface 3 ". It prevents absorption and improves detection sensitivity, and can prevent noise from the blood cuff (2) lav.
  • the sound-collecting cuff 3 has a sealed structure including the micro-phone sensor 5 attached to the tip of the flexible tube 10.
  • the relationship between the sound collecting cuff 3, and the microphone mouth phone sensor 5 corresponds to the relationship between the sound collecting part of the stethoscope and the earpiece.
  • the micro tube sensor 5 is not provided in the sound collecting cuff 3 but the flexible tube 10! ) It extends outside the cuff band 1 and is provided at the tip of the cuff band.]),
  • the length of the air column is appropriately selected and the length of the air column is resonated with the co-dock sound.
  • the detection sensitivity can be improved to facilitate the detection, and when the sensor 5 is disposed in the sound collecting cuff 3, the sensitivity is large due to the displacement between the sensor 1 and the artery.
  • the conventional problem of fluctuation in width could be solved.
  • the dimensions of the blood flow cuff 2 are generally considered to be 230 ⁇ 130, but the sound-collecting cuff 3 in the case of the sphygmomanometer according to the present invention is
  • the length is standard male upper arm thickness
  • FIG. 6 shows the connecting pipe 7 between the two cuffs 2 and 3 and the tubes 9 and 10 respectively connected thereto.
  • two pipes 22 and 23 made of molded product or metal are connected by a flange 8, and this flange 8 is connected to the outer bag of the cuff band 1. It also serves as the upper part.
  • FIG. 1 is an operation explanatory diagram also serving as an explanatory diagram of a conventional example
  • FIG. 2 is a block diagram for explaining an electric circuit portion
  • FIG. 3 is a specific circuit diagram of the main part of the recognition discrimination circuit.
  • FIG. 4 is a perspective view of the cuff band.
  • FIGS. 5 (a) and 5 (b) are cross-sectional and vertical cross-sectional views of FIG. 6 Figure is It is a perspective view of a coupling pipe.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physiology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

Un systeme de mesure de la pression arterielle comprend une manchette, un dispositif automatique de gonflage et de degonflage pour amener de l'air comprime dans la manchette, des circuits electroniques pour distinguer les sons de Korotokov, et des moyens d'affichage pour indiquer les valeurs maximum (systolique) et minimum (diastolique) de la pression arterielle. La manchette est divisee en deux parties, soit une partie d'etranglement et une partie collectrice des sons. La variation de la pression d'air dans la partie collectrice des sons peut etre detectee par un capteur microphonique qui est dispose a l'exterieur de la manchette. Les sons detectes sont separes en sons de Korotokov et en sons cardiaques. Ensuite les deux types de sons sont compares pour confirmer leur frequence simultanee. Ces sons coincidents peuvent etre consideres comme etant des sons de Korotokov et utilises pour mesurer la pression arterielle.
PCT/JP1979/000143 1978-06-07 1979-06-07 Systeme de mesure de la pression arterielle Ceased WO1980000005A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6912478A JPS54160085A (en) 1978-06-07 1978-06-07 Tonometer
JP78/69124 1978-06-07

Publications (1)

Publication Number Publication Date
WO1980000005A1 true WO1980000005A1 (fr) 1980-01-10

Family

ID=13393573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1979/000143 Ceased WO1980000005A1 (fr) 1978-06-07 1979-06-07 Systeme de mesure de la pression arterielle

Country Status (2)

Country Link
JP (1) JPS54160085A (fr)
WO (1) WO1980000005A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003009755A3 (fr) * 2001-07-27 2003-05-30 Terumo Corp Brassard et tensiometre associe
CN116171128A (zh) * 2020-11-04 2023-05-26 欧姆龙健康医疗事业株式会社 血压测定用袖带以及血压计

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4819594B2 (ja) * 2006-06-27 2011-11-24 テルモ株式会社 血圧測定用カフ、血圧測定装置及び血圧測定方法
JP4882631B2 (ja) * 2006-09-25 2012-02-22 ソニー株式会社 固体撮像装置及び撮像装置
JP2011200610A (ja) * 2010-03-26 2011-10-13 Terumo Corp 電子血圧計
JP5600023B2 (ja) * 2010-03-26 2014-10-01 テルモ株式会社 電子血圧計
JP5600021B2 (ja) * 2010-03-26 2014-10-01 テルモ株式会社 電子血圧計
JP5536597B2 (ja) * 2010-09-15 2014-07-02 テルモ株式会社 血圧計
JP7527837B2 (ja) * 2020-05-11 2024-08-05 株式会社エー・アンド・デイ 自動血圧測定装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120628Y1 (fr) * 1970-08-18 1976-05-29
JPS5220944Y2 (fr) * 1971-10-21 1977-05-13
JPS5222868Y2 (fr) * 1971-10-22 1977-05-25
DE1940575B2 (de) * 1969-08-08 1978-02-16 Elag Inhaber Johann Klein, 5000 Köln Vorrichtung zur messung des pulsblutdruckes mit einem schalldruckwandler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120628U (fr) * 1974-08-01 1976-02-16
JPS5220944U (fr) * 1975-07-31 1977-02-15

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1940575B2 (de) * 1969-08-08 1978-02-16 Elag Inhaber Johann Klein, 5000 Köln Vorrichtung zur messung des pulsblutdruckes mit einem schalldruckwandler
JPS5120628Y1 (fr) * 1970-08-18 1976-05-29
JPS5220944Y2 (fr) * 1971-10-21 1977-05-13
JPS5222868Y2 (fr) * 1971-10-22 1977-05-25

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003009755A3 (fr) * 2001-07-27 2003-05-30 Terumo Corp Brassard et tensiometre associe
US7354403B2 (en) 2001-07-27 2008-04-08 Terumo Kabushiki Kaisha Cuff apparatus and sphygmomanometer comprising the same
CN116171128A (zh) * 2020-11-04 2023-05-26 欧姆龙健康医疗事业株式会社 血压测定用袖带以及血压计

Also Published As

Publication number Publication date
JPS54160085A (en) 1979-12-18

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