EP1333752A1 - Dispositif de mesure de pression arterielle - Google Patents

Dispositif de mesure de pression arterielle

Info

Publication number
EP1333752A1
EP1333752A1 EP00979581A EP00979581A EP1333752A1 EP 1333752 A1 EP1333752 A1 EP 1333752A1 EP 00979581 A EP00979581 A EP 00979581A EP 00979581 A EP00979581 A EP 00979581A EP 1333752 A1 EP1333752 A1 EP 1333752A1
Authority
EP
European Patent Office
Prior art keywords
cuff
blood pressure
pressure
bulb
measuring device
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
EP00979581A
Other languages
German (de)
English (en)
Inventor
Gerhard Frick
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.)
Microlife Intellectual Property GmbH
Original Assignee
Microlife Intellectual Property GmbH
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 Microlife Intellectual Property GmbH filed Critical Microlife Intellectual Property GmbH
Publication of EP1333752A1 publication Critical patent/EP1333752A1/fr
Ceased legal-status Critical Current

Links

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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • 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
    • A61B5/02225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the oscillometric 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • 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

Definitions

  • the invention relates to a device for measuring the blood pressure of a patient according to the preamble of the independent patent claims .
  • Such automatic blood pressure monitors usually have an electric pump for inflating the cuff.
  • Such a pump has several drawbacks: The operation of the electric pump leads to a high consumption of energy. A frequent change of batteries is therefore necessary. In addition, the pumping speed is limited to the power of the electric pump. A faster inflation which may be desired by some patients is not achievable. In addition, some patients are scared of automatic pumping.
  • semi-automatic blood pressure monitors which are provided with a bulb for manually inflating the cuff. The bulb is connected to the cuff with a tube.
  • a further object of the present invention is to improve the comfort for the patient and to improve the reliability of the blood pressure monitor.
  • the blood pressuring device is used for oscillometrically measuring the blood pressure of a patient, e.g. upon the upper arm.
  • the device comprises an inflatable cuff which is adapted to be placed around the upper arm.
  • the blood pressure measuring device further comprises a control and display unit connected to or connectable to the cuff via a tube.
  • the control and display unit is provided with at least one electric or electronic pressure sensor for measuring the pressure within the cuff.
  • the control and display unit further comprises a digital display and a calculating unit.
  • the calculating unit is programmed in such a way that the systolic and diastolic blood pressure values are calculated on the basis of the pressure oscillations in the cuff measured by the pressure sensor. Calculation is made in a known manner, e.g. with the oscillometric method.
  • control and display unit is provided with a bulb for manually inflating the cuff.
  • the bulb is directly attached to a housing including the control and display unit.
  • the invention proposes an integral, manual, hand held blood pressure monitor which automatically determines the blood pressure values in an oscillometric method and which comprises a manual inflation bulb which is integrated in a housing carrying the control and display unit .
  • the housing may therefore be simply held with one hand while the bulb may be pressed with the fingers of the same hand.
  • the housing includes the pressure sensor, the calculating unit, the pressure control valves, the display and the inflation bulb.
  • Pressure control valves include a valve for pressure reduction during the measurement and a release valve for pressure release after the measurement . Both valves can be mechanical or automatic/electric valves.
  • the blood pressure monitor substantially consist of two parts, the housing with the control and display unit and the cuff, which are connected to each other with only one tube .
  • the deflation valve can also act as the pressure release valve.
  • the valve slowly decreases the pressure in the cuff and works as a deflation valve. After the measurement, the valve rapidly decreases the pressure and acts as a pressure release valve .
  • the blood pressure measuring device has several advantages. As the device consists only of two parts, it is easy to use because there is no need for an electrically operated pump. Consumption of energy is greatly reduced and batteries last over a long period of time. In addition, the user may select the speed of inflating the cuff at its discretion.
  • the calculating unit is provided with an on/off switch.
  • the switch may be activated upon first compression of the bulb. As soon as the user starts to inflate the cuff, the switch is activated and the calculating unit is turned on.
  • the device may further comprise a timer which turns off the calculating unit after a certain period of time. It is therefore possible to make a blood pressure monitor without an external switch. This design allows an easy operation, because the user does not need to turn the device on before making a measurement .
  • the device can be manufactured in an economical way because additional manual switches can be dispensed with. An automatic power off switch which additionally helps to save energy of the batteries.
  • the calculating unit is programmed such as to indicate when the cuff pressure has reached the required setup pressure. This indicates the user when he may stop to inflate the cuff. It is also possible to indicate, that the setup pressure of the cuff pressure has not yet been reached and further inflation is required. It is further conceivable to automatically start the blood pressure measurement as soon as the setup pressure of the pressure in the cuff is reached and starts to decline. The measurement cannot start as long as the pump is actuated, i.e. the pressure increases.
  • the control and display unit may be provided with an automatic pressure release valve for automatically releasing the cuff pressure after the measurement, which means after the diastolic blood pressure value is determined.
  • an automatic pressure release valve for automatically releasing the cuff pressure after the measurement, which means after the diastolic blood pressure value is determined.
  • the device may be equipped with an active controlled deflation valve which has the advantage that it may be controlled with the calculation unit, whereby under each specific condition (e.g. at high or low pulse rates) an optimum deflation speed may be achieved.
  • an active controlled deflation valve which has the advantage that it may be controlled with the calculation unit, whereby under each specific condition (e.g. at high or low pulse rates) an optimum deflation speed may be achieved.
  • the deflation valve is formed as passive, self regulating valve.
  • Such valves are known as such.
  • the valve is operating in a way such that the decrease of the pressure within the cuff is continuously between around two and five mmHg per second, independent from the pressure within the cuff.
  • Such a valve may remain open during the inflation of the cuff, as the inflation speed is much higher than the deflation rate.
  • Such valve may be combined with a manual quick release function by pressing a button. This allows an especially user friendly design of the blood pressure measuring device with very low cost of material, at the same time. In order to make a measurement, the user only has to inflate the cuff with the manual inflation bulb.
  • the user may stop inflating the cuff and the measurement of the blood pressure is made fully automatic. After the diastolic pressure is determined the user simply presses the valve button for manually releasing the remaining pressure within the cuff.
  • the inflation bulb, and the manual deflation valve if present are arranged in such way that they are actuatable with one hand. Such an arrangement leads to an ergonomic design which allows the user to make the entire measurement with one hand while the other hand remains free .
  • the calculating unit may further be programmed such as to calculate the pulse rate of the patient and to control the deflation rate of the deflation valve
  • Figure 1 a schematic representation of a blood pressure measuring device according to the invention
  • Figure 2 a representation of the bulb arranged within the blood pressure measuring device and Figure 3 an exploded view of the blood pressure measuring device, showing the individual components of the device.
  • the blood pressure measuring device 1 is schematically shown in Figure 1.
  • the device 1 comprises a cuff 2 and a control and display unit 3.
  • the cuff 2 is adapted to be placed around the upper arm of a patient
  • the control and display unit 3 is connected to the inflatable cuff 2 via a tube 4.
  • the control and display unit 3 comprises a pressure sensor (not shown) for measuring the pressure P within the cuff.
  • the control and display unit 3 is arranged in a housing 9 made up of a plastic material.
  • the housing 9 is further provided with a bulb 8 for manually inflating the cuff 2 and optionally with a combined valve 11 for pressure decrease during measurement and for manually deflating the cuff 2 after the measurement.
  • the bulb 8 is attached to the housing such that the housing can be directly held and the bulb can be actuated with the same hand.
  • the value of the blood pressure is calculated in an oscillometric method.
  • Calculation is made with a calculating unit 7, which is integrated in the control and display unit 3.
  • the calculating unit 7 is a microprocessor, e.g. of the Mitsubishi 3822 series.
  • the signal of the pressure sensor is coupled into the calculating unit 7.
  • Measurement of the blood pressure is made as follows: In an embodiment of the invention, the blood pressure monitor is provided with an Auto-on function. When the user for the first time presses the inflation bulb 8, the calculating unit 7 is turned on.
  • the microprocessor may in its sleeping-mode continuously check the pressure at the sensor and switch on the display (and close the automatic release valve, when applicable) after reaching a predetermined pressure, e.g. above 20 mmHg.
  • a predetermined pressure e.g. above 20 mmHg.
  • Another, more energy saving way is to include an additional pressure sensitive micro- switch in the system.
  • the unit may be manually switched on before the user starts to pump in a similar way as it is made in known manual blood pressure monitors.
  • the cuff is thereafter inflated by further pressing the bulb 8 to a pressure value P, e.g about 40 mmHg higher than the expected systolic blood pressure of the patient. If the pumped cuff-pressure P is too low, the algorithm will detect this and indicate on the display to further pump the cuff to a higher value. After inflation of the cuff, the pressure in the cuff 2 is gradually released and the pressure values in the cuff 2 are measured.
  • P e.g about 40 mmHg higher than the expected systolic blood pressure of the patient.
  • the pressure is automatically released with a passive self-regulating valve 11.
  • the values of the pressure P in the cuff 2 are continuously measured with the pressure sensor and the calculating unit 7.
  • the value of the systolic and diastolic blood pressure are determined with the calculating unit 7 in an oscillometric method.
  • the oscillometric method for determining the blood pressure is known per se .
  • the pulse rate of the patient is determined with the calculating unit 7.
  • the blood pressure values and, optionally, the pulse rate are displayed in the digital display 6.
  • an automatic deflation valve e.g. an electromagnetic valve.
  • the deflation rate in this case is controlled with the calculating unit.
  • the blood pressure monitor After the measurement cycle which is finished by displaying the blood pressure values and, optionally, the pulse rate and when the remaining cuff pressure is released, the blood pressure monitor is automatically turned off after a certain period of time without operation, e.g. after five minutes unless there is a switch-off button and it is pressed after measurement.
  • Figure 2 shows an exploded view of an embodiment of the control and display unit 3 according to the invention.
  • the housing 9 of the blood pressure measuring device 1 consists of a lower cover 32 and an upper cover 31.
  • the lower and upper covers 32, 31 are made of plastic material, e.g. formed in injection molding.
  • the upper cover 31 is provided with a shell 34.
  • the bulb 8 is partially covered by the shell 34 which acts as a counter bearing for the bulb 8.
  • the bulb 8 is attached with a bulb holder 33 to the upper cover 31.
  • the control and display unit 3 formed basically the bulb 8, the upper cover 31 and the lower cover 32 is connected to a cuff via a tube 4.
  • the bulb 8 is provided with a manual release valve 11 for rapidly releasing the cuff pressure.
  • the bulb 8 is provided with an automatic or passive deflation valve 11 for deflation of the cuff during the measurement and with a check valve 10 for air inlet into the bulb.
  • a conventional pressure sensor 5, a printed circuit board 30 with a microprocessor and a digital display 6 are arranged in the housing 9 formed of the upper and lower cover 31, 32. Those parts are known to those skilled in the art. Additional parts for fixation of the elements, electrical connection, switching on or off, known to those skilled in the art are also shown in figure 2.
  • the shell 34 is provided with a hole 35 as an air inlet through which the check valve 11 is inserted. This helps, to fix the bulb 8 additionally within the shell 34.
  • the blood pressure measuring device may be held with one hand at the shell 34.
  • the bulb 8 may be actuated with the fingers of the same hand.
  • the blood pressure values measured are displayed with the digital display 6 which may be seen by the user through an opening closed with a lens 36 on the upper cover 31 of the housing 9.
  • the user may actuate the release valve 11 with a finger of the same hand.
  • FIG. 3 shows a schematic representation of the blood pressuring device 1. Same reference numerals designate same parts as in Figure 1.
  • the pressure P within the cuff 2 is measured with a electronic or electric pressure sensor 5.
  • the pressure P in the cuff 2 is increased with a bulb 8 and may be decreased with a valve 11.
  • the electrical signal provided by the pressure sensor 5 is led to oscillometric circuit 15.
  • the pressure P is determined in the oscillometric circuit 15 based on the electric signal.
  • the output of the oscillometric circuit 15 is led into the microprocessor 7.
  • the values of the systolic and diastolic blood pressure are calculated with the microprocessor 7 and displayed on the display 6.
  • the power for the device is supplied by a battery 13 being connected to the microprocessor 7 and via a power driver 16 to the voltage regulator 17 and to the oscillometric circuit 15.
  • the device is further provided with a low battery potentiometer 18 connected to the power driver 17 and the microprocessor 7.
  • An oscillator 19 is further provided for operating the microprocessor 7.
  • the microprocessor 7 determines the blood values on the basis of the pressure P with the oscillometric method.
  • the components used in the device 1 are known to those skilled in the art .

Landscapes

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

Abstract

Dispositif de mesure de pression artérielle pour mesurer la pression artérielle dans la partie supérieure du bras d'un patient qui comprend un brassard gonflable (2) que l'on dispose autour de la partie supérieure du bras (A) du patient; il comprend un capteur de pression électrique ou électronique (5). Le dispositif se présente comme un dispositif portatif comprenant une poire (8) attachée à un boîtier (9) comprenant l'unité de commande et d'affichage (7) pour gonfler le brassard (2). La pression sanguine est automatiquement déterminée dans un procédé par oscillométrie.
EP00979581A 2000-01-14 2000-11-16 Dispositif de mesure de pression arterielle Ceased EP1333752A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00100728 2000-01-14
PCT/EP2000/011369 WO2001050952A1 (fr) 2000-01-14 2000-11-16 Dispositif de mesure de pression arterielle

Publications (1)

Publication Number Publication Date
EP1333752A1 true EP1333752A1 (fr) 2003-08-13

Family

ID=8167620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00979581A Ceased EP1333752A1 (fr) 2000-01-14 2000-11-16 Dispositif de mesure de pression arterielle

Country Status (5)

Country Link
EP (1) EP1333752A1 (fr)
JP (1) JP2004515257A (fr)
CN (1) CN100500085C (fr)
PL (1) PL361421A1 (fr)
WO (1) WO2001050952A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628759B2 (en) 2002-05-31 2009-12-08 Kaz Usa, Inc. Blood pressure measurement device
DE10224042A1 (de) * 2002-05-31 2003-12-18 Braun Gmbh Blutdruckmeßgerät
JP4595449B2 (ja) * 2004-09-02 2010-12-08 オムロンヘルスケア株式会社 血圧計用カフ
CN101072536A (zh) * 2004-10-11 2007-11-14 微生命知识产权股份有限公司 血压监测器和操作血压监测器的方法
JP4460511B2 (ja) * 2005-09-09 2010-05-12 シチズンホールディングス株式会社 血圧計
JP4153543B2 (ja) * 2006-10-27 2008-09-24 シチズンホールディングス株式会社 電子血圧計
CN101849820A (zh) * 2010-06-04 2010-10-06 天津九安医疗电子股份有限公司 血压计放气调节装置及含有该放气调节装置的血压计
CN101912259B (zh) * 2010-08-06 2012-10-10 深圳瑞光康泰科技有限公司 一种无创血压测量装置
EP2603134A4 (fr) * 2010-08-11 2017-11-15 Empirical Technologies Corporation Doigtier hydrostatique pour analyse de la forme d'onde du sang et support de diagnostic
US9301700B2 (en) 2012-09-27 2016-04-05 Welch Allyn, Inc. Configurable vital signs system
US11071467B2 (en) 2013-08-08 2021-07-27 Welch Allyn, Inc. Hybrid patient monitoring system
CN103584846B (zh) * 2013-11-06 2015-10-14 康尚医疗技术（丹阳）有限公司 一种脉搏信号检测方法及血压测量装置
CN103598881B (zh) * 2013-11-06 2015-09-23 康尚医疗技术（丹阳）有限公司 一种双气囊脉搏信号检测方法及血压测量装置
CN103720465B (zh) * 2013-11-06 2015-09-23 康尚医疗技术（丹阳）有限公司 一种血压测量装置及双气囊脉搏信号检测方法
JP6230886B2 (ja) * 2013-11-26 2017-11-15 株式会社エー・アンド・デイ 血圧計用送気球

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US4271844A (en) 1979-08-06 1981-06-09 Medtek Corporation Method and apparatus for performing non-invasive blood pressure and pulse rate measurements
US4429699A (en) * 1980-02-18 1984-02-07 Asulab Ag Blood pressure measuring equipment
US4735213A (en) * 1985-08-21 1988-04-05 Omron Tateisi Electronics Co. Device and method for determining systolic blood pressure
JPS6385205U (fr) 1986-11-25 1988-06-03 Sharp Kk
US4751930A (en) * 1985-07-12 1988-06-21 Matsushita Electric Works, Ltd. Blood pressure measuring system
US5054494A (en) * 1989-12-26 1991-10-08 U.S. Medical Corporation Oscillometric blood pressure device
JPH06105815A (ja) 1991-10-25 1994-04-19 Citizen Watch Co Ltd 電子血圧計
JPH1189805A (ja) 1997-09-24 1999-04-06 Tsutomu Hirabayashi 血圧計

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JPH0614721Y2 (ja) * 1989-05-06 1994-04-20 コーリン電子株式会社 自動血圧測定装置
JPH08275927A (ja) * 1992-02-13 1996-10-22 Seta:Kk 在宅医療システム及びこのシステムに用いる医療装置
US5810734A (en) * 1994-04-15 1998-09-22 Vital Insite, Inc. Apparatus and method for measuring an induced perturbation to determine a physiological parameter
CN2297169Y (zh) * 1996-06-11 1998-11-18 甘心照 一种血压计控制装置及其血压计
ATE221337T1 (de) * 1998-07-09 2002-08-15 Accusphyg Llc Hybrides sphygmomanometer
CN1213524A (zh) * 1998-10-09 1999-04-14 黄维彪 高血压诊断治疗仪

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271844A (en) 1979-08-06 1981-06-09 Medtek Corporation Method and apparatus for performing non-invasive blood pressure and pulse rate measurements
US4429699A (en) * 1980-02-18 1984-02-07 Asulab Ag Blood pressure measuring equipment
US4751930A (en) * 1985-07-12 1988-06-21 Matsushita Electric Works, Ltd. Blood pressure measuring system
US4735213A (en) * 1985-08-21 1988-04-05 Omron Tateisi Electronics Co. Device and method for determining systolic blood pressure
JPS6385205U (fr) 1986-11-25 1988-06-03 Sharp Kk
US5054494A (en) * 1989-12-26 1991-10-08 U.S. Medical Corporation Oscillometric blood pressure device
JPH06105815A (ja) 1991-10-25 1994-04-19 Citizen Watch Co Ltd 電子血圧計
JPH1189805A (ja) 1997-09-24 1999-04-06 Tsutomu Hirabayashi 血圧計

Non-Patent Citations (1)

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Title
See also references of WO0150952A1 *

Also Published As

Publication number Publication date
WO2001050952A1 (fr) 2001-07-19
WO2001050952A8 (fr) 2001-10-18
JP2004515257A (ja) 2004-05-27
CN1482883A (zh) 2004-03-17
PL361421A1 (en) 2004-10-04
CN100500085C (zh) 2009-06-17

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