JPS61136703U - - Google Patents
Info
- Publication number
- JPS61136703U JPS61136703U JP1899385U JP1899385U JPS61136703U JP S61136703 U JPS61136703 U JP S61136703U JP 1899385 U JP1899385 U JP 1899385U JP 1899385 U JP1899385 U JP 1899385U JP S61136703 U JPS61136703 U JP S61136703U
- Authority
- JP
- Japan
- Prior art keywords
- blood pressure
- frequency
- band filter
- korotkoff sound
- measuring device
- 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.)
- Pending
Links
- 230000036772 blood pressure Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 3
- 238000009530 blood pressure measurement Methods 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
第１図は本考案が適用された血圧測定装置の回
路構成を示すブロツク線図である。第２図は第１
図に用いられた本考案の一実施例の作動を説明す
る図である。第３図は第１図の実施例における周
波数可変帯域フイルタの構成を示す回路図である
。第４図は第３図の可変抵抗素子を説明する図で
ある。第５図は本考案の他の実施例が適用された
血圧測定装置の回路構成を示す部分ブロツク図で
ある。
１０：カフ、２６：マイクロホン、３０，４４
：周波数可変帯域フイルタ。
FIG. 1 is a block diagram showing the circuit configuration of a blood pressure measuring device to which the present invention is applied. Figure 2 is the first
FIG. 2 is a diagram illustrating the operation of an embodiment of the present invention used in the figure. FIG. 3 is a circuit diagram showing the configuration of the variable frequency bandpass filter in the embodiment of FIG. 1. FIG. 4 is a diagram illustrating the variable resistance element of FIG. 3. FIG. 5 is a partial block diagram showing the circuit configuration of a blood pressure measuring device to which another embodiment of the present invention is applied. 10: Cuff, 26: Microphone, 30, 44
: Frequency variable band filter.
Claims (1)
採取される信号に含まれるコロトコフ音信号を弁
別する帯域フイルタとを備え、血圧測定に際して
カフにより圧迫された生体の一部から生ずるコロ
トコフ音を検出する血圧測定装置用コロトコフ音
検出装置において、 前記帯域フイルタを中心周波数またはカツトオ
フ周波数が変更可能な周波数可変帯域フイルタと
し、該周波数可変帯域フイルタの中心周波数また
はカツトオフ周波数を前記カフの圧力に伴つて変
化させるようにしたことを特徴とする血圧測定装
置用コロトコフ音検出装置。 (2) 前記周波数可変帯域フイルタは、前記カフ
の圧力上昇に伴つてその中心周波数が上昇させら
れるものである実用新案登録請求の範囲第(1)項
に記載の血圧測定装置用コロトコフ音検出装置。[Scope of Claim for Utility Model Registration] (1) A part of a living body compressed by a cuff during blood pressure measurement, comprising a microphone and a bandpass filter for discriminating Korotkoff sound signals contained in signals collected by the microphone. In the Korotkoff sound detection device for a blood pressure measuring device, the band filter is a variable frequency band filter whose center frequency or cutoff frequency can be changed, and the center frequency or cutoff frequency of the variable frequency band filter is set to 1. A Korotkoff sound detection device for a blood pressure measuring device, characterized in that the sound changes in accordance with the pressure of the blood pressure. (2) The Korotkoff sound detection device for a blood pressure measuring device according to claim 1, wherein the frequency variable band filter has a center frequency that is increased as the pressure of the cuff increases. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1899385U JPS61136703U (en) | 1985-02-12 | 1985-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1899385U JPS61136703U (en) | 1985-02-12 | 1985-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61136703U true JPS61136703U (en) | 1986-08-25 |
Family
ID=30508150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1899385U Pending JPS61136703U (en) | 1985-02-12 | 1985-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61136703U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58138433A (en) * | 1982-02-15 | 1983-08-17 | 松下電工株式会社 | Hemomanometer |
| JPS59164048A (en) * | 1983-03-10 | 1984-09-17 | 株式会社東芝 | Ultrasonic diagnostic apparatus |
-
1985
- 1985-02-12 JP JP1899385U patent/JPS61136703U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58138433A (en) * | 1982-02-15 | 1983-08-17 | 松下電工株式会社 | Hemomanometer |
| JPS59164048A (en) * | 1983-03-10 | 1984-09-17 | 株式会社東芝 | Ultrasonic diagnostic apparatus |
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