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WO2009065270A1 - Oxymètre pince doigt représentant une valeur mesurée par une tonalité audio - Google Patents

Oxymètre pince doigt représentant une valeur mesurée par une tonalité audio Download PDF

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Publication number
WO2009065270A1
WO2009065270A1 PCT/CN2007/071103 CN2007071103W WO2009065270A1 WO 2009065270 A1 WO2009065270 A1 WO 2009065270A1 CN 2007071103 W CN2007071103 W CN 2007071103W WO 2009065270 A1 WO2009065270 A1 WO 2009065270A1
Authority
WO
WIPO (PCT)
Prior art keywords
buzzer
finger
frequency
field effect
effect transistor
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/CN2007/071103
Other languages
English (en)
Chinese (zh)
Inventor
Feng Xu
Houcheng Su
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.)
Beijing Choice Electronic Technology Co Ltd
Original Assignee
Beijing Choice Electronic Technology Co 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 Beijing Choice Electronic Technology Co Ltd filed Critical Beijing Choice Electronic Technology Co Ltd
Priority to PCT/CN2007/071103 priority Critical patent/WO2009065270A1/fr
Priority to CN200780101319.1A priority patent/CN101842050B/zh
Publication of WO2009065270A1 publication Critical patent/WO2009065270A1/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
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6838—Clamps or clips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient; User input means
    • A61B5/7405—Details of notification to user or communication with user or patient; User input means using sound

Definitions

  • a finger clip oximeter that can represent measured values by pronunciation tones
  • the present invention relates to a finger oximeter capable of expressing a measured value by a pronunciation tone for detecting blood oxygen saturation in blood.
  • Oxygen saturation is a percentage of the amount of oxygen-bound hemoglobin in the blood that accounts for all oxygen-binding hemoglobin and is an important physiological indicator of the human body.
  • the oximeters on the market can be divided into two categories, one is the clinical monitor. These large oximeters provide dynamic audible alarms, image display, etc. Circuits such as frequency conversion and op amp are more complicated; the other is portable oximeters, such as finger oximeters. Most of these oximeters do not use buzzers, and do not have an audible alarm function. Only some manufacturers With the DC buzzer, the pitch control cannot be performed.
  • the portable fingertip oximeter is small in size and the display area of the screen is small, so the observation value is not as convenient as that of a large-scale device. Therefore, it is necessary to realize the measurement result according to the different pulse rate on the finger oximeter.
  • the function is to facilitate the doctor to understand the patient's blood oxygenation changes.
  • An object of the present invention is to provide a finger oximeter capable of expressing a measured value by a pronunciation tone, which has an AC buzzer, and the pronunciation frequency and pronunciation tone of the buzzer can respectively indicate the pulse frequency and blood.
  • the measurement of oxygen saturation is simple, easy to use, and low in power consumption.
  • Another object of the present invention is to provide a finger oximeter capable of expressing a measured value by a pronunciation tone, the pronunciation frequency of which is consistent with the pulse wave frequency, and the beat frequency and variation of the pulse rate can be known without looking at the value.
  • Another object of the present invention is to provide a finger oximeter capable of expressing a measured value by a pronunciation tone, the pitch of which is related to the measured value of blood oxygen saturation, and if the measured value is high, the frequency is high. The sound is sharper. If the measured value is lowered, the frequency is low, and the sound is boring. You can know the trend of the blood oxygen measurement without looking at the value.
  • Another object of the present invention is to provide a finger oximeter capable of indicating a measured value by a voicing tone, the alarm ⁇ stopping the pulse sound utterance.
  • the present invention provides a finger oximeter capable of expressing a measured value by a pronunciation tone, having an audio processor, characterized in that the finger oximeter has an AC buzzer, the communication
  • the audio control circuit of the buzzer comprises: a MOS field effect transistor TR6, a coupling capacitor C28 is connected in series between the gate 1 and the output port P0.5 of the central processing unit CPU; a current limiting resistor R42 and a pull-up resistor R44, It is disposed between the gate 1 and the source 2 of the MO S field effect transistor TR6; the Schottky diode D4 is connected in parallel with the pull-up resistor R44; and the capacitor C5 is connected to the source 2 of the MOS field effect transistor TR6; And a buzzer Bl connected to the drain 3 of the MOS field effect transistor TR6.
  • the frequency of the pronunciation is controlled by software.
  • the audio processor controls the pronunciation frequency and pronunciation tone of the buzzer B1 by generating a PWM wave.
  • the pronunciation frequency is consistent with the pulse rate.
  • the pitch of the pronunciation is related to the measurement of blood oxygen saturation, and if the measured value is high, the frequency is increased.
  • the sound is sharp; if the measured value is low, the frequency is lowered, and the sound is dull.
  • the buzzer B1 issues an alarm and stops the pulse sound.
  • the buzzer B1 is a low power AC buzzer.
  • the capacitor C5 is a voltage stabilizing capacitor.
  • the control circuit used in the invention is relatively simple, and is directly controlled by the I/O port of the CPU, and the frequency of the pronunciation is controlled by software; the voltage is stabilized by the voltage stabilizing capacitor, and the power consumption is reduced; AC buzzer. This achieves miniaturization of the horn system.
  • FIG. 1 is a schematic structural view of a finger grip oximeter having a buzzer according to the prior art.
  • FIG. 2 is an audio control circuit diagram of a finger oximeter with an AC buzzer in accordance with the present invention.
  • a finger oximeter with a buzzer generally includes: a probe that can be clamped to a finger by a known structure; a central processing unit CPU connected to the probe ; audio control The circuit is connected to the output port P0.5 of the central processing unit CPU; the buzzer B1 is controlled by the audio control circuit; the central processing unit CPU includes three units of a heartbeat algorithm, a saturation algorithm and an audio processor, wherein Run the corresponding program in the audio processor to control the frequency and tone of the buzzer B1.
  • the audio control circuit includes: a MOS field effect transistor TR6 having a capacitor C28 coupled in series between its gate 1 and an output port P0.5 of the central processing unit CPU; a current limiting resistor R42 and a pull-up resistor R44 , which is disposed between the gate 1 and the source 2 of the MOS field effect transistor TR6; the Schottky diode D4 is connected in parallel with the pull-up resistor R44; and the capacitor C5 is connected to the source 2 of the MOS field effect transistor TR6;
  • the buzzer Bl is connected to the drain 3 of the MOS field effect transistor TR6.
  • the output port P0.5 is a control port, which can control the switch of the buzzer B1.
  • the output port P0.5 is given a high level, the MOS field effect transistor T R6 is turned off, the buzzer B1 does not sound; when the output port P0. 5 gives a low level, the MOS field effect transistor TR 6 is turned on, and the buzzer B1 sounds.
  • the audio processor in the CPU of the central processing unit generates a PWM wave, and controls the pronunciation frequency and pronunciation tone of the buzzer B1 through the output port P0.5, so that the sound of the buzzer B1 and the pulse frequency and blood oxygen saturation are measured.
  • the values are associated, wherein the pronunciation frequency is consistent with the pulse rate, and the pitch of the pronunciation is associated with the measurement of blood oxygen saturation.
  • the frequency will increase and the sound will be sharp; if the measured value is low, the frequency will decrease and the sound will be dull.
  • the buzzer B1 will give an alarm and stop the sound of the pulse sound.
  • the buzzer B1 in Figure 2 is a low-power AC buzzer, and the capacitor C5 is a voltage-stabilizing capacitor, which can store a part of the power, which can solve the excessive power of the buzzer B1, resulting in unstable voltage. problem.
  • P0.5 is the output control port of the CPU (the CPU can capture various models), the control signal is given by the CPU, P0.5 is given to the high level, and the MOS transistor TR6 Off, buzzer B1 does not sound, P0.5 gives low level, MOS tube TR6 turns on, buzzer B1 sounds.
  • the function of capacitor C5 is to store a part of the power, which can solve the problem that the power of the speaker is too large and the voltage is unstable.
  • P0.5 is used as the control port to control the switch of the speaker, and can also control the buzz by sending PWM waves. The pitch frequency of the sound. The tone of the pronunciation can be correlated with the measurement of blood oxygen saturation.
  • B1 is a low-power AC buzzer that can realize PWM wave control and tone modulation.
  • R42 is a current limiting resistor and R 44 is a pull-up resistor.
  • the present invention discloses a finger oximeter with an AC buzzer, the finger oximeter has The circuit has the advantages of simple structure and low power consumption. Similarly, the buzzer can be used to understand the pulse and oxygen saturation information of the human body. The value of the blood oxygen measurement value can be known without looking at the value, so the use is simple. Convenience.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

L'invention porte sur un oxymètre pince doigt qui comporte un processeur audio et qui peut représenter la valeur mesurée par une tonalité audio. L'oxymètre pince doigt possède un vibreur à courant alternatif. Le circuit de commande audio du vibreur comprend : un transistor à effet de champ MOS (TR6), un condensateur de couplage (C28) étant connecté en série entre sa grille (1) et une sortie (P0.5) d'une unité centrale (CPU) ; une résistance de limitation de courant (R42) et une résistance de rappel vers le niveau haut (R44), agencées entre la grille (1) et la source (2) du transistor à effet de champ MOS (TR6) ; une diode à effet Schottky (D4), connectée en parallèle avec la résistance de rappel vers le niveau haut (R44) ; un condensateur (C5) connecté à la source (2) du transistor à effet de champ MOS (TR6) ; et un vibreur (B1) connecté au drain (3) du transistor à effet de champ MOS (TR6).
PCT/CN2007/071103 2007-11-21 2007-11-21 Oxymètre pince doigt représentant une valeur mesurée par une tonalité audio Ceased WO2009065270A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2007/071103 WO2009065270A1 (fr) 2007-11-21 2007-11-21 Oxymètre pince doigt représentant une valeur mesurée par une tonalité audio
CN200780101319.1A CN101842050B (zh) 2007-11-21 2007-11-21 一种可通过发音音调表示测量值的指夹血氧仪

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/071103 WO2009065270A1 (fr) 2007-11-21 2007-11-21 Oxymètre pince doigt représentant une valeur mesurée par une tonalité audio

Publications (1)

Publication Number Publication Date
WO2009065270A1 true WO2009065270A1 (fr) 2009-05-28

Family

ID=40667109

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/071103 Ceased WO2009065270A1 (fr) 2007-11-21 2007-11-21 Oxymètre pince doigt représentant une valeur mesurée par une tonalité audio

Country Status (2)

Country Link
CN (1) CN101842050B (fr)
WO (1) WO2009065270A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105832319A (zh) * 2016-05-27 2016-08-10 常州市盈顺电子有限公司 语音式血压测量仪

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066127A (zh) * 1991-04-23 1992-11-11 腾洪福 多功能测电笔
US5692505A (en) * 1996-04-25 1997-12-02 Fouts; James Michael Data processing systems and methods for pulse oximeters
JPH11137527A (ja) * 1997-11-11 1999-05-25 Nippon Koden Corp 脈波伝播時間測定装置
US6449501B1 (en) * 2000-05-26 2002-09-10 Ob Scientific, Inc. Pulse oximeter with signal sonification
US6537214B1 (en) * 2001-09-13 2003-03-25 Ge Medical Systems Information Technologies, Inc. Patient monitor with configurable voice alarm
US6754516B2 (en) * 2001-07-19 2004-06-22 Nellcor Puritan Bennett Incorporated Nuisance alarm reductions in a physiological monitor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066127A (zh) * 1991-04-23 1992-11-11 腾洪福 多功能测电笔
US5692505A (en) * 1996-04-25 1997-12-02 Fouts; James Michael Data processing systems and methods for pulse oximeters
JPH11137527A (ja) * 1997-11-11 1999-05-25 Nippon Koden Corp 脈波伝播時間測定装置
US6449501B1 (en) * 2000-05-26 2002-09-10 Ob Scientific, Inc. Pulse oximeter with signal sonification
US6754516B2 (en) * 2001-07-19 2004-06-22 Nellcor Puritan Bennett Incorporated Nuisance alarm reductions in a physiological monitor
US6537214B1 (en) * 2001-09-13 2003-03-25 Ge Medical Systems Information Technologies, Inc. Patient monitor with configurable voice alarm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105832319A (zh) * 2016-05-27 2016-08-10 常州市盈顺电子有限公司 语音式血压测量仪

Also Published As

Publication number Publication date
CN101842050B (zh) 2013-05-08
CN101842050A (zh) 2010-09-22

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