CN102551706A - Fetal sound sensor - Google Patents
Fetal sound sensor Download PDFInfo
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- CN102551706A CN102551706A CN2010106207303A CN201010620730A CN102551706A CN 102551706 A CN102551706 A CN 102551706A CN 2010106207303 A CN2010106207303 A CN 2010106207303A CN 201010620730 A CN201010620730 A CN 201010620730A CN 102551706 A CN102551706 A CN 102551706A
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- piezoelectric material
- fetal
- sound sensor
- vibration
- high polymer
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Abstract
The invention discloses a fetal sound sensor which consists of a shell, a lead, conductive electrodes and a macromolecular piezoelectric material filled between the electrodes. Vibration signals produced by heartbeat or body activity of a fetus are transmitted to the belly of a mother through human tissues; and when the sensor is attached to the belly of the mother, the sensor senses the vibration of the belly of the mother, so that the macromolecular piezoelectric material vibrates. The macromolecular piezoelectric material converts the vibration into charge signals, the charge signals are output by the lead, and fetal heart sound signals or fetal movement signals can be acquired through subsequent processing circuits. The sensor has the excellent properties of high response speed, high sensitivity and good linearity, can be applied to fetal heart sound monitoring and fetal movement monitoring, is simple to use, and does not have any harm to the mother and the fetus.
Description
[technical field]
The present invention relates to sensor technical field, be specifically related to a kind of tire sound sensor that is used for fetal heart sound monitoring and fetal movement monitoring.
[background technology]
Fetal monitoring is to ensure perinatal stage puerpera and fetal well-being, realizes the important means of prenatal and postnatal care.Heart of fetus is the vitals that oxygen and nutrition are provided to fetus, and fetal heart sound is monitored, and can help doctor and anemia of pregnant woman in time to understand changes in heart rate of fetus and the developmental state in parent, in time finds the sufferer that fetus might occur.Fetal movement also is one of important indicator of fetus safety.In utero fetal movement is active, and the expression fetus is all right.The bad fetus chronic hypoxia that causes of placental function, fetal movement reduces.Monitor fetal movement every day and can foresee the safety of fetus.
The most frequently used fetus monitoring method is to adopt the ultrasonic doppler detection technique at present, utilizes the Doppler effect principle to pick up fetus signal aroused in interest.This method can be measured fetal heart frequency accurately and fast, but has safety issue.The ultrasound wave that ultrasonic listening equipment sends, no matter intensity has muchly, and parent and fetus are all had injury.
In addition, the daily monitoring problem of the family of fetus never is well solved owing to a variety of causes.Various fetal rhythm monitoring methods that often use in the hospital now or because technology is too complicated can't in lacking the average family of medical knowledge, use, or cost an arm and a leg and can't popularize have infringement and can not often use again or to parent and fetus.
[summary of the invention]
Main purpose of the present invention is to the problems referred to above, provides a kind of use simple, harmless fetal monitoring means.
Be to realize above-mentioned purpose, the present invention provides a kind of tire sound sensor, is made up of shell, lead-in wire, conductive electrode and the high polymer piezoelectric material that is filled between the electrode.High polymer piezoelectric material comprises Kynoar (PVDF), polyvinyl fluoride (PVF), polrvinyl chloride (PVC) etc., is a kind of flexible piezoelectric material.This piezoelectric can produce charge signal when vibration.
The vibration signal that heart of fetus is beated or body movement produced can pass through the abdominal part conduction of tissue to parent, and when this pick off was attached to the parent abdominal part, the vibration of pick off sensing parent abdominal part made high polymer piezoelectric material vibrate.High polymer piezoelectric material changes this vibration into charge signal, and by lead-in wire output, the treatment circuit through follow-up just can obtain fetal heart sound signal or Fetal Movement Signal.
The invention has the beneficial effects as follows:
This tire sound sensor adopts high polymer piezoelectric material as sensing material, has the good characteristic that response speed is fast, highly sensitive and the linearity is good, has guaranteed the accuracy and the accuracy of signals collecting.Simultaneously, this tire sound sensor is prone to process the thin film that arbitrary shape and area do not wait, and is in light weight, very soft, durable, and produces simple.This tire sound sensor is used for fetal monitoring, uses simply, can not cause any infringement parent and fetus.
[specific embodiment and description of drawings]
The application's characteristic and advantage will be through embodiment, in conjunction with the accompanying drawings.
Fig. 1 is the sketch map of tire sound sensor, is made up of shell, lead-in wire, upper/lower electrode and high polymer piezoelectric material, and high polymer piezoelectric material is filled between top electrode and the bottom electrode.This tire sound sensor is a film shape, and is very soft, and very durable.
Fig. 2 is the sketch map that this tire sound sensor is used for fetal monitoring.The tire sound sensor is sticked on the abdominal part of parent; Fetal heart sound signal causes vibration at the parent abdominal part, this vibration of pick off sensing, output charge signal through tissue conduction meeting; Be connected to treatment circuit through lead-in wire; Through processing circuit processes, just can obtain fetal heart sound signal, show through display screen.
Above content is to combine embodiment to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (5)
1. tire sound sensor is made up of shell, lead-in wire, conductive electrode and the high polymer piezoelectric material that is filled between the electrode.
2. tire sound sensor as claimed in claim 1 is characterized in that: adopt high polymer piezoelectric material as sensing material, come sensing fetal heart sound signal and Fetal Movement Signal.
3. tire sound sensor as claimed in claim 1 is characterized in that: high polymer piezoelectric material comprises Kynoar (PVDF), polyvinyl fluoride (PVF), polrvinyl chloride (PVC) etc.
4. tire sound sensor as claimed in claim 1 is characterized in that: can process the thin film that arbitrary shape and area do not wait.
5. tire sound sensor as claimed in claim 1 is characterized in that: the vibration signal that heart of fetus is beated or body movement produced can pass through the abdominal part conduction of tissue to parent, when this pick off is attached to the parent abdominal part; The vibration of pick off sensing parent abdominal part; Make high polymer piezoelectric material vibrate, high polymer piezoelectric material changes this vibration into charge signal, by lead-in wire output; Treatment circuit through follow-up just can obtain fetal heart sound signal or Fetal Movement Signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106207303A CN102551706A (en) | 2010-12-31 | 2010-12-31 | Fetal sound sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106207303A CN102551706A (en) | 2010-12-31 | 2010-12-31 | Fetal sound sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102551706A true CN102551706A (en) | 2012-07-11 |
Family
ID=46399285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106207303A Pending CN102551706A (en) | 2010-12-31 | 2010-12-31 | Fetal sound sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102551706A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551789A (en) * | 2010-12-31 | 2012-07-11 | 深圳市迈迪加科技发展有限公司 | Novel heart sound sensor |
| CN103222862A (en) * | 2013-04-23 | 2013-07-31 | 江苏矽望电子科技有限公司 | Passive fetal heart monitoring system based on acoustic sensor |
| CN104306018A (en) * | 2014-10-11 | 2015-01-28 | 重庆理工大学 | Wearable fetus education bellyband system with fetus sound monitoring, fetus movement detection and fetus movement trajectory induction functions |
| CN104586428A (en) * | 2015-01-04 | 2015-05-06 | 张敏 | Pick device for fetal heartbeat sound |
| CN107174222A (en) * | 2017-05-16 | 2017-09-19 | 深圳市云传智联技术有限公司 | A kind of passive passive tire sound monitor system of Wearable based on piezo technology and device |
| CN107348955A (en) * | 2017-08-30 | 2017-11-17 | 上海韩洁电子科技有限公司 | Fetal rhythm monitors harvester |
| CN109009046A (en) * | 2018-05-23 | 2018-12-18 | 中国科学院化学研究所 | Electric sensor and preparation method thereof and tire sound monitor device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2095376A (en) * | 1934-11-24 | 1937-10-12 | Telefunken Gmbh | Piezoelectric oscillator crystal |
| US3798474A (en) * | 1971-07-08 | 1974-03-19 | Inst Francais Du Petrole | Pressure wave piezoelectric sensor of continuous structure |
| US4443730A (en) * | 1978-11-15 | 1984-04-17 | Mitsubishi Petrochemical Co., Ltd. | Biological piezoelectric transducer device for the living body |
| CN2198872Y (en) * | 1994-08-29 | 1995-05-31 | 深圳国科自动化高技术工贸公司 | Portable digital monitor for foetus heart |
| CN2255237Y (en) * | 1995-07-14 | 1997-06-04 | 清华大学 | Medical multi-function flexible sensor of polyvinylidene fluoride piezoelectric film |
| CN2354504Y (en) * | 1998-06-03 | 1999-12-22 | 北京国科传感器研究开发中心 | Fetal sound sensor |
| CN2678569Y (en) * | 2003-11-06 | 2005-02-16 | 梁平 | Mini digital fetal gage |
| CN2790407Y (en) * | 2005-05-10 | 2006-06-28 | 北京奥瑞赛斯传感技术有限公司 | Digital fetus cardiac sound measuring device |
-
2010
- 2010-12-31 CN CN2010106207303A patent/CN102551706A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2095376A (en) * | 1934-11-24 | 1937-10-12 | Telefunken Gmbh | Piezoelectric oscillator crystal |
| US3798474A (en) * | 1971-07-08 | 1974-03-19 | Inst Francais Du Petrole | Pressure wave piezoelectric sensor of continuous structure |
| US4443730A (en) * | 1978-11-15 | 1984-04-17 | Mitsubishi Petrochemical Co., Ltd. | Biological piezoelectric transducer device for the living body |
| CN2198872Y (en) * | 1994-08-29 | 1995-05-31 | 深圳国科自动化高技术工贸公司 | Portable digital monitor for foetus heart |
| CN2255237Y (en) * | 1995-07-14 | 1997-06-04 | 清华大学 | Medical multi-function flexible sensor of polyvinylidene fluoride piezoelectric film |
| CN2354504Y (en) * | 1998-06-03 | 1999-12-22 | 北京国科传感器研究开发中心 | Fetal sound sensor |
| CN2678569Y (en) * | 2003-11-06 | 2005-02-16 | 梁平 | Mini digital fetal gage |
| CN2790407Y (en) * | 2005-05-10 | 2006-06-28 | 北京奥瑞赛斯传感技术有限公司 | Digital fetus cardiac sound measuring device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551789A (en) * | 2010-12-31 | 2012-07-11 | 深圳市迈迪加科技发展有限公司 | Novel heart sound sensor |
| CN103222862A (en) * | 2013-04-23 | 2013-07-31 | 江苏矽望电子科技有限公司 | Passive fetal heart monitoring system based on acoustic sensor |
| CN104306018A (en) * | 2014-10-11 | 2015-01-28 | 重庆理工大学 | Wearable fetus education bellyband system with fetus sound monitoring, fetus movement detection and fetus movement trajectory induction functions |
| CN104586428A (en) * | 2015-01-04 | 2015-05-06 | 张敏 | Pick device for fetal heartbeat sound |
| CN107174222A (en) * | 2017-05-16 | 2017-09-19 | 深圳市云传智联技术有限公司 | A kind of passive passive tire sound monitor system of Wearable based on piezo technology and device |
| CN107348955A (en) * | 2017-08-30 | 2017-11-17 | 上海韩洁电子科技有限公司 | Fetal rhythm monitors harvester |
| CN109009046A (en) * | 2018-05-23 | 2018-12-18 | 中国科学院化学研究所 | Electric sensor and preparation method thereof and tire sound monitor device and method |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |