WO2012145938A1 - 一种压电血压传感器 - Google Patents

一种压电血压传感器 Download PDF

Info

Publication number
WO2012145938A1
WO2012145938A1 PCT/CN2011/073720 CN2011073720W WO2012145938A1 WO 2012145938 A1 WO2012145938 A1 WO 2012145938A1 CN 2011073720 W CN2011073720 W CN 2011073720W WO 2012145938 A1 WO2012145938 A1 WO 2012145938A1
Authority
WO
WIPO (PCT)
Prior art keywords
piezoelectric
blood pressure
pressure sensor
blood
electrical signal
Prior art date
Application number
PCT/CN2011/073720
Other languages
English (en)
French (fr)
Inventor
王新安
沈劲鹏
戴鹏
黄锦锋
李玉刚
王金泊
冯晓星
Original Assignee
深圳市迈迪加科技发展有限公司
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 深圳市迈迪加科技发展有限公司 filed Critical 深圳市迈迪加科技发展有限公司
Publication of WO2012145938A1 publication Critical patent/WO2012145938A1/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
    • H10N30/302—Sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0247—Pressure sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1107—Measuring contraction of parts of the body, e.g. organ, muscle

Definitions

  • the invention relates to the technical field of sensors for medical instruments, and particularly relates to a blood pressure sensor made of a polymer piezoelectric material.
  • Non-invasive blood pressure measurement methods in the prior art include auscultation and oscillometric methods.
  • the auscultation method is to judge the systolic blood pressure and diastolic blood pressure by listening to the acoustic sound. The readings are affected by a series of factors such as the doctor's emotion, hearing, environmental noise, and the tension of the test subject, and subjective errors are easily introduced.
  • most electronic sphygmomanometers use the oscillometric method to determine blood pressure by establishing the relationship between systolic blood pressure, diastolic blood pressure, average pressure and cuff pressure shock wave. Both methods need to first inflate the cuff when measuring blood pressure, which is inconvenient to operate and cannot perform long-term continuous blood pressure monitoring.
  • a primary object of the present invention is to provide an effective piezoelectric blood pressure sensor for achieving long-term continuous blood pressure monitoring.
  • the present invention provides a piezoelectric blood pressure sensor comprising a housing, a lead, a conductive electrode, and a piezoelectric polymer material filled between the electrodes.
  • the piezoelectric polymer material is used to sense the pulsation of a body surface artery and convert it into a corresponding electrical signal, which is output by the lead wire.
  • the piezoelectric polymer material comprises polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF) and polyvinyl chloride (PVC) o
  • the output electrical signal of the lead wire is subjected to processing and analysis calculation of the corresponding processing circuit to obtain a blood pressure value.
  • the piezoelectric blood pressure sensor adopts a polymer piezoelectric material as a sensing material, and has the characteristics of high response speed, high sensitivity and good linearity, and ensures the accuracy and accuracy of the signal collected by the sensor.
  • the blood pressure sensor is light, soft and durable, and safe and comfortable to contact with the human body.
  • the blood pressure sensor is used for blood pressure monitoring, and long-term continuous blood pressure monitoring can be realized without a pressurized air pump.
  • FIG. 1 is a schematic view of a piezoelectric blood pressure sensor of the present invention, which is composed of a casing, a bow wire, upper and lower electrodes, and a polymer piezoelectric material, and a piezoelectric polymer material is filled between the upper electrode and the lower electrode.
  • This blood pressure sensor can be made into films of any shape and area as needed.
  • Figure 2 is a schematic illustration of a long-term continuous blood pressure monitoring system using the blood pressure sensor, including a blood pressure sensor and a host.
  • the blood pressure sensor can be attached directly to the wrist or it can be attached to the wrist with a comfortable elastic fabric.
  • the blood pressure sensor senses the pulsation of the wrist artery, outputs a corresponding electrical signal, and calculates and obtains the blood pressure value through the processing and analysis of the host.

Description

说 明 书 一种压电血压传感器
【技术领域】
本发明涉及医疗仪器的传感器技术领域， 具体涉及一种采用高分子压 电材料制作的血压传感器。
【背景技术】
现有技术中的无创血压测量方法有听诊法和示波法。 听诊法是通过听 柯式声来判别收缩压、 舒张压， 其读数受医生的情绪、 听力、 环境噪声、 被测者的紧张等一系列因素的影响， 易引入主观误差。 目前绝大多数电子 血压计采用了示波法， 通过建立收缩压、 舒张压、 平均压与袖带压力震荡 波的关系来判别血压。 这两种方法在测量血压时，都需要首先对袖带充气， 操作不便， 不能进行长期连续血压监测。
【发明内容】
本发明的主要目的是提供一种有效的压电血压传感器， 以实现长期连 续血压监测。
为实现上述目的， 本发明提供一种压电血压传感器， 由外壳、 引线、 导电电极和填充在电极之间的高分子压电材料组成。 所述高分子压电材料 用于感应人体体表动脉的搏动， 并将其转变为相应的电信号， 由所述引线 输出。
进一步地， 所述高分子压电材料包括聚偏氟乙烯 （PVDF)、 聚氟乙烯 (PVF) 和聚氯乙烯 (PVC)o
进一步地， 所述引线的输出电信号， 经过相应处理电路的处理和分析 计算， 可得到血压值。
本发明的有益效果是：
本压电血压传感器采用高分子压电材料作为传感材料， 具有响应速度 快、 灵敏度高和线性度好的优良特性， 保证了传感器采集信号的准确性和 精确性。 同时， 本血压传感器重量轻， 柔软耐用， 与人体接触安全舒适。 而且， 将本血压传感器用于血压监测， 无需加压气泵， 可实现长期连续血 压监测。
【具体实施方式和附图说明】 本申请的特征及优点将通过实施例， 结合附图进行说明。
图 1是本发明的压电血压传感器的示意图， 由外壳、 弓 I线、 上下电极 和高分子压电材料组成， 高分子压电材料填充在上电极和下电极之间。 本 血压传感器可根据需要， 制成任意形状和面积不等的薄膜。
图 2是使用本血压传感器的长期连续血压监测系统的示意图，包括血 压传感器和主机。 血压传感器可以直接粘贴在腕部， 也可以通过舒适弹性 织物固定在腕部。 血压传感器感应腕部动脉的搏动， 输出相应的电信号， 经过主机的处理和分析计算得到血压值。
以上内容是结合一种实施方式对本发明所作的进一步详细说明， 不能 认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普 通技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干简单推 演或替换， 都应当视为属于本发明的保护范围。

Claims

权 利 要 求 书
1. 一种压电血压传感器， 由外壳、弓 I线、导电电极和填充在电极之 间的高分子压电材料组成。
2. 如权利要求 1所述的压电血压传感器，其特征在于：所述高分子 压电材料包括聚偏氟乙烯（PVDF)、聚氟乙烯（PVF)和聚氯乙烯（PVC)。
3. 如权利要求 1所述的压电血压传感器，其特征在于：所述高分子 压电材料用于感应人体体表动脉的搏动， 并将其转变为相应的电信号， 由 所述引线输出。
4. 如权利要求 1所述的压电血压传感器，其特征在于：可以制成任 意形状和面积不等的薄膜。
5. 如权利要求 3所述的压电血压传感器，其特征在于：所述电信号 经过相应处理电路的处理和分析计算， 可得到血压值。
PCT/CN2011/073720 2011-04-29 2011-05-06 一种压电血压传感器 WO2012145938A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011101112689A CN102247130A (zh) 2011-04-29 2011-04-29 一种压电血压传感器
CN201110111268.9 2011-04-29

Publications (1)

Publication Number Publication Date
WO2012145938A1 true WO2012145938A1 (zh) 2012-11-01

Family

ID=44974974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/073720 WO2012145938A1 (zh) 2011-04-29 2011-05-06 一种压电血压传感器

Country Status (2)

Country Link
CN (1) CN102247130A (zh)
WO (1) WO2012145938A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103340615A (zh) * 2013-06-18 2013-10-09 深圳市微纳集成电路与系统应用研究院 一种血压传感器
CN103330555A (zh) * 2013-06-18 2013-10-02 深圳市微纳集成电路与系统应用研究院 一种连续血压测量装置
CN104434070B (zh) * 2015-01-05 2016-09-21 宋恩民 一种用于穿戴式设备的生命血压传感器
CN106491109A (zh) * 2016-11-10 2017-03-15 中国科学院重庆绿色智能技术研究院 一种基于纳米压电材料的实时血压监测传感器
CN107157463A (zh) * 2017-05-22 2017-09-15 京东方科技集团股份有限公司 血压测试装置及方法
CN109497969B (zh) * 2018-11-13 2021-05-18 华东交通大学 一种多功能无源电子皮肤系统及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269193A (en) * 1977-11-04 1981-05-26 Sri International Noninvasive blood pressure monitoring transducer
US4443730A (en) * 1978-11-15 1984-04-17 Mitsubishi Petrochemical Co., Ltd. Biological piezoelectric transducer device for the living body
US5033471A (en) * 1988-03-23 1991-07-23 Colin Electronics Co., Ltd. Method and apparatus measuring blood pressure
CN2255237Y (zh) * 1995-07-14 1997-06-04 清华大学 聚偏氟乙烯压电膜医用多功能柔性传感器
CN1234731A (zh) * 1996-08-20 1999-11-10 压力计集团有限公司 对血压一类的流体压力进行测量的装置和方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2071055U (zh) * 1989-12-02 1991-02-13 杨绿化 小动物血压无创测量仪
WO2004112611A1 (ja) * 2003-06-20 2004-12-29 Matsushita Electric Industrial Co., Ltd. 就寝装置及び在床状態検出方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269193A (en) * 1977-11-04 1981-05-26 Sri International Noninvasive blood pressure monitoring transducer
US4443730A (en) * 1978-11-15 1984-04-17 Mitsubishi Petrochemical Co., Ltd. Biological piezoelectric transducer device for the living body
US5033471A (en) * 1988-03-23 1991-07-23 Colin Electronics Co., Ltd. Method and apparatus measuring blood pressure
CN2255237Y (zh) * 1995-07-14 1997-06-04 清华大学 聚偏氟乙烯压电膜医用多功能柔性传感器
CN1234731A (zh) * 1996-08-20 1999-11-10 压力计集团有限公司 对血压一类的流体压力进行测量的装置和方法

Also Published As

Publication number Publication date
CN102247130A (zh) 2011-11-23

Similar Documents

Publication Publication Date Title
CN107865647B (zh) 血压检测装置以及血压检测装置的校正方法
US10842396B2 (en) Vibration waveform sensor and waveform analysis device
CN109890277B (zh) 使用压力传感器阵列的血压信号获取
CN100346740C (zh) 基于桡动脉脉搏信息的血压测量装置
WO2012145938A1 (zh) 一种压电血压传感器
US8419646B2 (en) Blood pressure estimation apparatus and blood pressure estimation method
KR101798495B1 (ko) 웨어러블 손목 혈압계
WO2006124768A1 (en) Method and apparatus for blood pressure measurement and analysis
US20100099957A1 (en) Physiological parameter monitoring device
KR102158498B1 (ko) 인체 상에 부착 가능한 압전 맥박 소자를 이용한 압전 기반 혈압 측정 장치
CN106618540B (zh) 无创血压检测方法及无创血压检测装置
CN210612114U (zh) 震动感测装置、血压测量装置、及心肺效能监控装置
JP2020513892A (ja) 血液の流れ及び呼吸の流れを監視するための装置
CN113520357A (zh) 一种血压测量装置及方法
CN101664307A (zh) 一种用于听诊法测血压的柯氏音信息的获取处理方法和装置
WO2017117739A1 (zh) 睡眠监测系统
CN111449637A (zh) 一种动静脉内瘘血管的评价系统及方法
JP2004305268A (ja) 心音検出装置
AU2004251778A1 (en) Radiation stress non-invasive blood pressure method
WO2012145939A1 (zh) 一种血压监测方法
CN100346741C (zh) 基于心音信号的血压测量装置
CN112367912A (zh) 改进的个人健康数据收集
Neuman Measurement of blood pressure [tutorial]
US20120108985A1 (en) Cuffless blood pressure monitor
WO2012145936A1 (zh) 一种心脏功能压电传感器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11864530

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11864530

Country of ref document: EP

Kind code of ref document: A1