JPS5813316Y2 - Ketuatsukeiyo sensor - Google Patents
Ketuatsukeiyo sensorInfo
- Publication number
- JPS5813316Y2 JPS5813316Y2 JP12146475U JP12146475U JPS5813316Y2 JP S5813316 Y2 JPS5813316 Y2 JP S5813316Y2 JP 12146475 U JP12146475 U JP 12146475U JP 12146475 U JP12146475 U JP 12146475U JP S5813316 Y2 JPS5813316 Y2 JP S5813316Y2
- Authority
- JP
- Japan
- Prior art keywords
- blood pressure
- piezoelectric ceramic
- sensor
- copper foil
- ceramic plate
- 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.)
- Expired
Links
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
【考案の詳細な説明】
本考案は、血圧測定に用いる血圧計用センサに関し、電
源ノイズの影響を受けることなく上腕動脈の機械的鼓動
を検出することができる血圧計用センサを提供するもの
である。[Detailed description of the invention] The present invention relates to a sphygmomanometer sensor used for blood pressure measurement, and provides a sphygmomanometer sensor that can detect the mechanical heartbeat of the brachial artery without being affected by power supply noise. be.
１ず、従来のこの種の血圧計用センサについて第１図と
ともに説明する。First, a conventional blood pressure monitor sensor of this type will be explained with reference to FIG.
第１図において１は銅箔部２が形成されたプリント基板
、３は上下面にそれぞれ電極が形成された圧電磁器板で
あり、この圧電磁器板３は上記プリント基板１の銅箔部
２に接着されている。In FIG. 1, 1 is a printed circuit board on which a copper foil section 2 is formed, and 3 is a piezoelectric ceramic plate on which electrodes are formed on the upper and lower surfaces, respectively. It is glued.
この圧電磁器板３は機械振動を電気信号に変換する機能
を有弘外部より圧力を加えると電極間に電圧を発生する
ものである。This piezoelectric ceramic plate 3 has the function of converting mechanical vibrations into electrical signals and generates a voltage between electrodes when pressure is applied from outside.
４．４′ はリード線でありこれらリード線４，４′
はそれぞれ圧電磁器板３の上面電極むよび銅箔部２に接
続されている。4.4' is a lead wire, and these lead wires 4, 4'
are connected to the top electrode of the piezoelectric ceramic plate 3 and the copper foil portion 2, respectively.
５は上記圧電磁器板３を覆うように上記プリント基板１
に取付けられた絶縁性ケースである。5 is the printed circuit board 1 so as to cover the piezoelectric ceramic plate 3;
It is an insulating case attached to the
第１図に示す血圧計用センサを血圧測定に用いる場合に
は、血圧計用センサのプリント基板１が人体の上腕動脈
部に位置するように血圧計用センサを腕帯で固定しこの
状態で腕帯の空気圧を高めた後、腕帯の空気圧を彼々に
減じる。When the sphygmomanometer sensor shown in Fig. 1 is used for blood pressure measurement, the sphygmomanometer sensor is fixed with a cuff so that the printed circuit board 1 of the sphygmomanometer sensor is located at the brachial artery of the human body. After increasing the air pressure of the cuff, reduce the air pressure of the cuff.
腕帯の空気圧がある圧力に低下すると腕帯の圧力で血流
をとめられていた上腕動脈に再び血流が流れ上腕動脈部
にセットされている血圧計用センサは、上腕動脈の機械
的鼓動によシミ気出力を発生し、接続された電子式血圧
計が最高血圧をランプあるいはブザーで表示する。When the air pressure in the cuff drops to a certain level, the blood flow returns to the brachial artery, which had been stopped by the pressure in the cuff.The blood pressure sensor installed in the brachial artery detects the mechanical heartbeat of the brachial artery. A connected electronic blood pressure monitor displays the systolic blood pressure with a lamp or buzzer.
さらに腕帯の空気圧を減じると今まで表示されていたラ
ンプあるいはブザーは表示しなくなる。Furthermore, when the air pressure in the cuff is reduced, the lamp or buzzer that was displayed until now will no longer be displayed.
この点で電子式血圧計によう最低血圧を測定するもので
ある。In this respect, an electronic blood pressure monitor measures the diastolic blood pressure.
しかしながら上記従来の血圧計センサでは圧電磁器のイ
ンピーダンスが高いため商用周波数の電源ノイズをひろ
いやすく、血圧測定時に得られる信号に電源ノイズが混
入し血圧測定が正確に行なえず電子式血圧計の誤動作の
原因になる欠点があった。However, since the impedance of the piezoelectric ceramic is high in the conventional blood pressure monitor sensor, it is easy to pick up commercial frequency power supply noise, and the power supply noise mixes into the signal obtained during blood pressure measurement, making it impossible to measure blood pressure accurately and causing malfunction of the electronic blood pressure monitor. There was a flaw that caused it.
本考案は上記従来の欠点を除去するものであシ以下本考
案の一実施例について第２図とともに説明する。The present invention eliminates the above-mentioned drawbacks of the conventional art.One embodiment of the present invention will be described below with reference to FIG. 2.
第２図に釦いて、６は銅箔部Ｉが形成されたプリント基
板、８は上下面にそれぞれ電極が形成された圧電磁器板
であり、この圧電磁器板６の銅箔部７に接着されている
。Referring to FIG. 2, 6 is a printed circuit board on which a copper foil portion I is formed, and 8 is a piezoelectric ceramic plate with electrodes formed on its upper and lower surfaces, which are bonded to the copper foil portion 7 of the piezoelectric ceramic plate 6. ing.
９．９′ はリード線であシこれらリード線９．９ノは
それぞれ圧電磁器板８の上面電極むよび銅箔部７に接続
されている。Lead wires 9.9' are connected to the top electrode of the piezoelectric ceramic plate 8 and the copper foil portion 7, respectively.
１０は圧電磁器８を包む絶縁性樹脂であり、この絶縁性
樹脂１０の上部に導電性樹脂１１を塗布、しかもこの導
電性樹脂１１は銅箔部７と接し、電気的に接続されてい
る。Reference numeral 10 denotes an insulating resin that envelops the piezoelectric ceramic 8, and a conductive resin 11 is coated on the top of the insulating resin 10, and the conductive resin 11 is in contact with the copper foil portion 7 and is electrically connected.
１２は上記圧電磁器８を一体にモールドしているモール
ド体であり、ゴム等の弾性体又は樹脂等で振動が伝達さ
れ易い材料で形成される。Reference numeral 12 denotes a molded body in which the piezoelectric ceramic 8 is integrally molded, and is made of an elastic body such as rubber or a material that easily transmits vibrations, such as resin.
本考案の血圧計用センサは上記のように、圧電磁器板が
銅箔部および導電性樹脂により外部から完全にシールド
された構造であるため、以下に示す効果が得られるもの
である。As described above, the blood pressure sensor of the present invention has a structure in which the piezoelectric ceramic plate is completely shielded from the outside by the copper foil portion and the conductive resin, so that the following effects can be obtained.
（１）シールド構造を有する為商用周波数の電源ノイズ
の影響をうけにくく血圧測定が正確に行なえる。(1) Since it has a shield structure, it is less susceptible to the influence of commercial frequency power supply noise and can accurately measure blood pressure.
（２）圧電磁器板等を一体にモールドしただけの構造で
あるため容易にかつ安価に製造できる。(2) Since it has a structure in which piezoelectric ceramic plates and the like are integrally molded, it can be manufactured easily and at low cost.
（３）従来例では商用周波数の電源ノイズを除去する回
路が必要であったが、本考案の血圧計用センサを使用す
れば該回路は不要になシ回路が簡略化される。(3) In the conventional example, a circuit for removing commercial frequency power supply noise was required, but if the blood pressure monitor sensor of the present invention is used, this circuit is unnecessary and the circuit is simplified.
第１図は従来の血圧計用セ／すの断面図、第２図は本考
案の一実施例における血圧計用センサの断面図である。
６・・・・・・プリント基板、Ｔ・・・・・・銅箔部、
８・・・・・・圧電磁器板、９．９’ ・・・・・・リ
ード線、１０・・・、・・絶縁性樹脂、１１・・・・・
・導電性樹脂 １２・・・・・・モールド体。FIG. 1 is a cross-sectional view of a conventional blood pressure monitor cell, and FIG. 2 is a cross-sectional view of a blood pressure monitor sensor according to an embodiment of the present invention. 6... Printed circuit board, T... Copper foil part,
8... Piezoelectric ceramic plate, 9.9'... Lead wire, 10... Insulating resin, 11...
- Conductive resin 12...Mold body.
Claims (1)
器板の外周を絶縁性樹脂で覆い、この絶縁性樹脂の外周
に導電性樹脂を塗布するとともにこの導電性樹脂を上記
銅箔部に接触させた血圧計用センサ。A piezoelectric ceramic plate is bonded to the copper foil part of the printed circuit board, the outer periphery of the piezoelectric ceramic plate is covered with an insulating resin, and a conductive resin is applied to the outer periphery of the insulating resin, and the conductive resin is applied to the copper foil part. Blood pressure monitor sensor in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12146475U JPS5813316Y2 (en) | 1975-09-02 | 1975-09-02 | Ketuatsukeiyo sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12146475U JPS5813316Y2 (en) | 1975-09-02 | 1975-09-02 | Ketuatsukeiyo sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5234593U JPS5234593U (en) | 1977-03-11 |
| JPS5813316Y2 true JPS5813316Y2 (en) | 1983-03-15 |
Family
ID=28602156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12146475U Expired JPS5813316Y2 (en) | 1975-09-02 | 1975-09-02 | Ketuatsukeiyo sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5813316Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109069029A (en) | 2016-04-28 | 2018-12-21 | 太阳诱电株式会社 | Vibrational waveform sensor and pulse wave detection device |
-
1975
- 1975-09-02 JP JP12146475U patent/JPS5813316Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5234593U (en) | 1977-03-11 |
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