CN103340615A - Blood pressure sensor - Google Patents
Blood pressure sensor Download PDFInfo
- Publication number
- CN103340615A CN103340615A CN2013102512673A CN201310251267A CN103340615A CN 103340615 A CN103340615 A CN 103340615A CN 2013102512673 A CN2013102512673 A CN 2013102512673A CN 201310251267 A CN201310251267 A CN 201310251267A CN 103340615 A CN103340615 A CN 103340615A
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- Prior art keywords
- blood pressure
- pressure sensor
- pressure transducer
- lead
- piezoelectric material
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a blood pressure sensor which is composed of an outer shell, a lead, conductive electrodes and macromolecule piezoelectric materials filled between the electrodes. The blood pressure sensor induces pulse of arteries on the body surface of the human body by using the macromolecule piezoelectric materials, the pulse is converted into a corresponding electric signal, and the signal is output by the lead. The output electric signal of the blood pressure sensor is processed, analyzed and calculated by a corresponding processing circuit, and a blood pressure value is obtained. The blood pressure sensor is used for blood pressure detection without a pressurized air pump, and long-term continuous blood pressure detection can be achieved.
Description
[technical field]
The present invention relates to the sensor technical field of Medical Instruments, be specifically related to a kind of pressure transducer that adopts high polymer piezoelectric material to make.
[background technology]
Non-invasive blood pressure measuring method of the prior art has auscultation and oscillographic method.Auscultation is by listening Ke's formula sound to differentiate systolic pressure, diastolic pressure, and its reading is subjected to doctor's emotion, audition, environment noise, measured's the influence of series of factors such as anxiety, easily introduces subjective error.Present most electric sphygmomanometer has adopted oscillographic method, differentiates blood pressure by the relation of setting up systolic pressure, diastolic pressure, mean pressure and cuff pressure Sasser.These two kinds of methods all need at first cuff to be inflated when measuring blood pressure, and operation inconvenience can not be carried out long-term continuous blood pressure monitoring.
[summary of the invention]
Main purpose of the present invention provides a kind of effective pressure transducer, to realize long-term continuous blood pressure monitoring.
For achieving the above object, the invention provides a kind of pressure transducer, formed by shell, lead-in wire, conductive electrode and the high polymer piezoelectric material that is filled between the electrode.Described high polymer piezoelectric material is used for beating of induction body surface tremulous pulse, and changes it into corresponding signal of telecommunication, by described lead-in wire output.
Further, described high polymer piezoelectric material comprises Kynoar (PVDF), polyvinyl fluoride (PVF) and polrvinyl chloride (PVC).
Further, the output signal of telecommunication of described lead-in wire, processing and analytical calculation through the respective handling circuit can obtain pressure value.
The invention has the beneficial effects as follows:
This pressure transducer 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 accuracy and the accuracy of sensor acquisition signal.Simultaneously, this pressure transducer is in light weight, and is soft durable, comfortable with the human body touch-safe.And, this pressure transducer is used for monitoring of blood pressure, need not to add compression pump, can realize long-term continuous blood pressure monitoring.
[specific embodiment and description of drawings]
The application's feature and advantage will be by embodiment, in conjunction with the accompanying drawings.
Fig. 1 is the sketch map of pressure transducer of the present invention, 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 pressure transducer can be made the thin film that arbitrary shape and area do not wait as required.
Fig. 2 is to use the sketch map of the long-term continuous blood pressure monitoring system of this pressure transducer, comprises pressure transducer and main frame.Pressure transducer can directly stick on wrist, also can be fixed on wrist by comfortable elastic fabric.Beating of pressure transducer induction wrist tremulous pulse exported the corresponding signal of telecommunication, and processing and the analytical calculation of process main frame obtain pressure value.
Above content be in conjunction with a kind of embodiment to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. pressure transducer is made up of shell, lead-in wire, conductive electrode and the high polymer piezoelectric material that is filled between the electrode.
2. pressure transducer as claimed in claim 1, it is characterized in that: described high polymer piezoelectric material comprises Kynoar (PVDF), polyvinyl fluoride (PVF) and polrvinyl chloride (PVC).
3. pressure transducer as claimed in claim 1 is characterized in that: described high polymer piezoelectric material is used for beating of induction body surface tremulous pulse, and changes it into corresponding signal of telecommunication, by described lead-in wire output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102512673A CN103340615A (en) | 2013-06-18 | 2013-06-18 | Blood pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102512673A CN103340615A (en) | 2013-06-18 | 2013-06-18 | Blood pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103340615A true CN103340615A (en) | 2013-10-09 |
Family
ID=49275482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102512673A Pending CN103340615A (en) | 2013-06-18 | 2013-06-18 | Blood pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103340615A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443730A (en) * | 1978-11-15 | 1984-04-17 | Mitsubishi Petrochemical Co., Ltd. | Biological piezoelectric transducer device for the living body |
| CN2255237Y (en) * | 1995-07-14 | 1997-06-04 | 清华大学 | Medical multi-function flexible sensor of polyvinylidene fluoride piezoelectric film |
| CN102247130A (en) * | 2011-04-29 | 2011-11-23 | 深圳市迈迪加科技发展有限公司 | Piezoelectric blood pressure transducer |
-
2013
- 2013-06-18 CN CN2013102512673A patent/CN103340615A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443730A (en) * | 1978-11-15 | 1984-04-17 | Mitsubishi Petrochemical Co., Ltd. | Biological piezoelectric transducer device for the living body |
| CN2255237Y (en) * | 1995-07-14 | 1997-06-04 | 清华大学 | Medical multi-function flexible sensor of polyvinylidene fluoride piezoelectric film |
| CN102247130A (en) * | 2011-04-29 | 2011-11-23 | 深圳市迈迪加科技发展有限公司 | Piezoelectric blood pressure transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Micro & Nano Integrated Circuit and System Application Institute Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131009 |