JPH0122648Y2 - - Google Patents
Info
- Publication number
- JPH0122648Y2 JPH0122648Y2 JP1983060014U JP6001483U JPH0122648Y2 JP H0122648 Y2 JPH0122648 Y2 JP H0122648Y2 JP 1983060014 U JP1983060014 U JP 1983060014U JP 6001483 U JP6001483 U JP 6001483U JP H0122648 Y2 JPH0122648 Y2 JP H0122648Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound collection
- air bag
- collection chamber
- microphone
- arm
- 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
- 230000036772 blood pressure Effects 0.000 claims description 13
- 208000028867 ischemia Diseases 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000004712 air sac Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
【考案の詳細な説明】
(イ) 考案の分野
この考案は、コロトコフ音をマイクロホンで検
出する血圧計における腕帯に関する。[Detailed explanation of the invention] (a) Field of the invention This invention relates to a cuff for a blood pressure monitor that detects Korotkoff sounds using a microphone.
(ロ) 従来技術とその問題点
従来、この種の血圧計の腕帯は第１図に示すよ
うに、阻血用の空気袋ａとコロトコフ音を採取す
る集音チエンバｂとが別物で形成され、この集音
チエンバｂ内にマイクロホン（図示省略）が収納
されて構成されている。そして、この空気袋ａを
腕ｃに巻きつけて加圧する一方、集音チエンバｂ
を腕ｃの測定部位に位置させて空気袋ａと腕ｃと
の間に介在させ、空気袋ａの加圧により阻血する
と共に、コロトコフ音を集音チエンバｂで採取
し、マイクロホンを介して血圧計本体に導くよう
になつている。(b) Prior art and its problems Conventionally, as shown in Figure 1, in the cuff of this type of blood pressure monitor, the air bladder a for ischemia and the sound collection chamber b for collecting Korotkoff sounds are formed as separate parts. A microphone (not shown) is housed in the sound collection chamber b. Then, this air bag a is wrapped around the arm c and pressurized, while the sound collection chamber b
is placed at the measurement site of arm c and interposed between air bag a and arm c, and blood ischemia is achieved by pressurizing air bag a, and Korotkoff sounds are collected by sound collection chamber b, and blood pressure is measured via a microphone. It is designed to lead to the meter body.
しかし、この腕帯においては集音チエンバｂを
空気袋ａと腕ｃとの間に位置させるので、空気袋
ａの圧迫力が集音チエンバｂで阻害され、腕ｃを
部分的に強く圧迫することになり、腕ｃの全周を
均一に圧迫出来ず、コロトコフ音の採取を正確に
行えないという欠点があり、測定の信頼性が低か
つた。 However, in this arm cuff, the sound collection chamber b is located between the air bag a and the arm c, so the compressive force of the air bag a is blocked by the sound collection chamber b, which partially strongly presses the arm c. As a result, the entire circumference of arm c could not be compressed uniformly, and Korotkoff sounds could not be collected accurately, resulting in low measurement reliability.
また、集音チエンバｂ内は密封されており、何
らの加圧手段も設けられていないので、マイクロ
ホンが外来音を拾い易いという問題があつた。 Furthermore, since the inside of the sound collection chamber b is sealed and no pressurizing means is provided, there is a problem in that the microphone easily picks up external sounds.
(ハ) 考案の目的
この考案は、かかる点に鑑みてなされたもの
で、集音チエンバを空気袋内に位置してこの空気
袋が腕を均一に圧迫するようにすると共に、集音
チエンバ内を加圧してマイクロホンが外来音を拾
い難くした血圧計の腕帯を提供することを目的と
するものである。(c) Purpose of the invention This invention was made in view of the above points, and the sound collection chamber is located inside the air bag so that the air bag applies pressure evenly on the arm, and the sound collection chamber The object of the present invention is to provide a cuff for a blood pressure monitor that pressurizes the blood pressure monitor to make it difficult for the microphone to pick up external sounds.
(ニ) 考案の構成と効果
この考案は、上記の目的を達成するために、阻
血用の空気袋に空気を供給するためのパイプを接
続し、かつ前記空気袋に、前記コロトコフ音を採
取する集音チエンバがコロトコフ音の採取面を空
気袋の一部で構成して形成され、この集音チエン
バ内と空気袋内とを連通する小径の連通孔が集音
チエンバに形成される一方、前記マイクロホンが
前記集音チエンバ内又はこの集音チエンバに連接
形成されたケース内に収納されて構成されてい
る。(d) Structure and effects of the invention In order to achieve the above-mentioned purpose, this invention connects a pipe for supplying air to an air bag for ischemia, and collects the Korotkoff sounds into the air bag. A sound collection chamber is formed by forming a Korotkoff sound collection surface with a part of the air bag, and a small diameter communication hole is formed in the sound collection chamber to communicate the inside of the sound collection chamber and the inside of the air bag. A microphone is housed in the sound collection chamber or in a case connected to the sound collection chamber.
したがつて、この考案によれば空気袋が腕を均
一に圧迫するので、コロトコフ音を正確に採取す
ることができるから、信頼性の高い測定を行うこ
とができる。 Therefore, according to this invention, since the air bag uniformly compresses the arm, Korotkoff sounds can be accurately collected, and highly reliable measurements can be performed.
また、集音チエンバと空気袋とを連通したの
で、加圧されると集音チエンバ内は、張力が増加
して音響インピーダンスが高まり、大気（空気）
との音響的不整合が高まるので、外来雑音の混入
を防止することができ、精度の良い測定を行なう
ことができる。 In addition, since the sound collection chamber and the air bag are communicated with each other, when the sound collection chamber is pressurized, the tension inside the sound collection chamber increases and the acoustic impedance increases.
Since the acoustic mismatch between the two components is increased, it is possible to prevent the mixing of external noise, and it is possible to perform highly accurate measurements.
また、集音チエンバと空気袋と細管とにより音
響フイルタが形成されるから、集音チエンバで捕
捉されたＫ音は空気袋にほとんど漏れることがな
く、一方空気袋内に発生する心臓からの血液拍出
による脈波は、集音チエンバにほとんど混入する
ことがなく、よつてＫ音を精度よく検出すること
ができる。 In addition, since an acoustic filter is formed by the sound collection chamber, the air bag, and the thin tube, the K sound captured by the sound collection chamber hardly leaks into the air bag, while the blood from the heart generated in the air bag Pulse waves caused by pumping hardly enter the sound collection chamber, and therefore the K sound can be detected with high accuracy.
(ホ) 実施例の説明
以下、この考案の１実施例を図面に基づいて詳
細に説明する。(e) Description of Embodiment Hereinafter, one embodiment of this invention will be described in detail based on the drawings.
第２図及び第３図に示すように、１は血圧計の
腕帯であつて、マイクロホン２によつてコロトコ
フ音を検出するようになつている。 As shown in FIGS. 2 and 3, reference numeral 1 is a cuff for a blood pressure monitor, and a microphone 2 is used to detect Korotkoff sounds.
この腕帯１は空気袋３と集音チエンバ４とマイ
クロホン２のケース５とより構成されている。こ
の空気袋３は、図示しないが、腕に巻き付けてこ
の腕を圧迫し、阻血するもので、１枚の矩形状シ
ートを折り重ね、この上下のシート３ａ，３ｂの
周縁をヒートシールにより接着して袋状に形成さ
れている。そして、両シート３ａ，３ｂは弾性材
料、例えば塩化ビニールで形成されており、下方
のシート３ｂが腕に密着されて巻き付けられる。
また、この空気袋３には血圧計本体（図示省略）
に連通するパイプ６が接続されており、空気を供
給して加圧されるようになつている。 This cuff 1 is composed of an air bag 3, a sound collection chamber 4, and a case 5 of a microphone 2. Although not shown, this air bag 3 is designed to be wrapped around an arm to compress the arm and prevent blood flow.It is made by folding a single rectangular sheet and bonding the peripheries of the upper and lower sheets 3a and 3b by heat sealing. It is shaped like a bag. Both sheets 3a and 3b are made of an elastic material such as vinyl chloride, and the lower sheet 3b is tightly wrapped around the arm.
In addition, this air bag 3 includes a blood pressure monitor body (not shown).
A pipe 6 communicating with is connected to supply air and pressurize it.
前記集音チエンバ４は、コロトコフ音を採取す
るもので、空気袋３内に形成されている。集音チ
エンバ４は１枚の矩形状シート４ａを空気袋３に
おける下方のシート３ｂに重ね合わせ、シート４
ａの周縁を空気袋３のシート３ｂにヒートシール
により接着して袋状に形成されている。そして、
この集音チエンバ４のコロトコフ音の採取面４ｂ
は空気袋３の下方のシート３ｂで構成されてお
り、シート４ａは塩化ビニール等の弾性材料で形
成され、しかも、空気袋３からの脈波圧の影響を
低減するためにシート４ａが肉厚に形成されてい
る。 The sound collection chamber 4 is for collecting Korotkoff sounds, and is formed inside the air bag 3. The sound collecting chamber 4 is constructed by overlapping one rectangular sheet 4a on the lower sheet 3b of the air bag 3.
The peripheral edge of the air bag 3 is bonded to the sheet 3b of the air bag 3 by heat sealing to form a bag shape. and,
Korotkoff sound sampling surface 4b of this sound collection chamber 4
is composed of a sheet 3b below the air bag 3, and the sheet 4a is made of an elastic material such as vinyl chloride. is formed.
さらに、シート４ａには細管７が内外を貫通し
て取り付けられ、集音チエンバ４内と空気袋３内
を連通する連通孔となつており、空気袋３の加圧
にともなつて集音チエンバ４内も加圧されるよう
になつている。 Furthermore, a thin tube 7 is attached to the seat 4a so as to pass through the inside and outside, and serves as a communication hole that communicates the inside of the sound collection chamber 4 and the inside of the air bag 3. As the air bag 3 is pressurized, the sound collection chamber 4 is also pressurized.
前記ケース５は、集音チエンバ４のシート４ａ
に連通して形成され、マイクロホン２が収納され
ている。このケース５は集音チエンバ４と連通
し、空気袋３より外側に突出形成されている。 The case 5 is a seat 4a of the sound collection chamber 4.
The microphone 2 is housed in the microphone 2. This case 5 communicates with the sound collection chamber 4 and is formed to protrude outward from the air bag 3.
なお、８はマイクロホン２に接続されたリード
線で、マイクロホン２が検出したコロトコフ音の
信号を血圧計本体に導くようになつている。 Note that 8 is a lead wire connected to the microphone 2, and is designed to guide the signal of the Korotkoff sound detected by the microphone 2 to the main body of the blood pressure monitor.
次ぎに、腕帯１の作用について説明すると、ま
ず、空気袋３を下方のシート３ｂが接触するよう
に腕に巻き付け、集音チエンバ４の採取面４ｂを
測定部位に位置させる。 Next, the function of the arm cuff 1 will be explained. First, the air bag 3 is wrapped around the arm so that the lower sheet 3b is in contact with the air bag 3, and the sampling surface 4b of the sound collection chamber 4 is positioned at the measurement site.
続いて、空気袋３に空気を供給して加圧する
と、空気袋３は障害物がないので腕を均一に圧迫
して阻血することになる。また、空気袋３の加圧
により集音チエンバ４内も細管７を介して加圧さ
れることになり、さらに、ケース５内も加圧され
る。したがつて、マイクロホン２は加圧下におか
れることになり、外来音を拾い難くなつている。
そして、マイクロホン２はコロトコフ音を検出し
て血圧計本体に導くことになる。 Subsequently, when air is supplied and pressurized to the air bag 3, the air bag 3 uniformly compresses the arm and causes blood ischemia because there are no obstacles. In addition, due to the pressurization of the air bag 3, the inside of the sound collection chamber 4 is also pressurized via the thin tube 7, and the inside of the case 5 is also pressurized. Therefore, the microphone 2 is placed under pressure, making it difficult to pick up external sounds.
The microphone 2 then detects the Korotkoff sound and guides it to the blood pressure monitor body.
この集音チエンバ４及び空気袋３の製作は、集
音チエンバ４のシート４ａの周縁を空気袋３のシ
ート（下方のシート３ｂ）に接着した後、空気袋
３のシートを２枚に折り重ね、上下のシート３
ａ，３ｂの周縁を接着して完了する。 The sound collection chamber 4 and air bag 3 are manufactured by gluing the periphery of the sheet 4a of the sound collection chamber 4 to the sheet of the air bag 3 (lower sheet 3b), and then folding the sheet of the air bag 3 into two sheets. , upper and lower sheets 3
Complete by gluing the peripheral edges of a and 3b.
なお、この実施例は集音チエンバ４と空気袋３
との連通孔を細管７で形成したが、細管７に限ら
ず小孔のみでもよい。 Note that this embodiment includes a sound collection chamber 4 and an air bag 3.
Although the communication hole with the thin tube 7 is formed by the thin tube 7, it is not limited to the thin tube 7, and only a small hole may be used.
また、空気袋３は１枚のシートに限らず、２枚
のシート等で形成してもよいことは勿論である。 Furthermore, it goes without saying that the air bag 3 is not limited to one sheet, but may be formed of two sheets or the like.
また、マイクロホン２は集音チエンバ４内に直
接収納するようにしてもよい。 Further, the microphone 2 may be directly housed within the sound collection chamber 4.
第１図は従来の血圧計の腕帯を示す概略断面
図、第２図はこの考案の血圧計の腕帯を示す一部
断面平面図、第３図は同腕帯の第２図―線に
おける断面側面図である。
１：腕帯、２：マイクロホン、３：空気袋、３
ａ，３ｂ：シート、４：集音チエンバ、４ａ：シ
ート、４ｂ：採取面、５：ケース、６：パイプ、
７：細管、８：リード線。
Fig. 1 is a schematic sectional view showing the arm cuff of a conventional blood pressure monitor, Fig. 2 is a partially sectional plan view showing the arm cuff of the blood pressure monitor of this invention, and Fig. 3 is the second diagram of the arm cuff. FIG. 1: Bracelet, 2: Microphone, 3: Air bag, 3
a, 3b: sheet, 4: sound collection chamber, 4a: sheet, 4b: sampling surface, 5: case, 6: pipe,
7: Thin tube, 8: Lead wire.
Claims (1)
血圧計において、 阻血用の空気袋に空気を供給するためのパイプ
を接続し、かつ前記空気袋に、前記コロトコフ音
を採取する集音チエンバがコロトコフ音の採取面
を空気袋の一部で構成して形成され、この集音チ
エンバ内と空気袋内とを連通する小径の連通孔が
集音チエンバに形成される一方、前記マイクロホ
ンが前記集音チエンバ内又はこの集音チエンバに
連接形成されたケース内に収納されていることを
特徴とする血圧計の腕帯。[Claim for Utility Model Registration] In a blood pressure monitor that detects Korotkoff sounds using a microphone, a pipe for supplying air is connected to an air bag for ischemia, and the Korotkoff sounds are collected into the air bag. A sound collection chamber is formed by forming a Korotkoff sound collection surface with a part of the air bag, and a small diameter communication hole is formed in the sound collection chamber to communicate the inside of the sound collection chamber and the inside of the air bag. A cuff for a blood pressure monitor, characterized in that a microphone is housed in the sound collection chamber or in a case connected to the sound collection chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6001483U JPS59164608U (en) | 1983-04-19 | 1983-04-19 | blood pressure cuff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6001483U JPS59164608U (en) | 1983-04-19 | 1983-04-19 | blood pressure cuff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59164608U JPS59164608U (en) | 1984-11-05 |
| JPH0122648Y2 true JPH0122648Y2 (en) | 1989-07-07 |
Family
ID=30190259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6001483U Granted JPS59164608U (en) | 1983-04-19 | 1983-04-19 | blood pressure cuff |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59164608U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6747332B2 (en) * | 2017-02-16 | 2020-08-26 | オムロンヘルスケア株式会社 | Blood pressure information measuring device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858008B2 (en) * | 1977-07-21 | 1983-12-23 | 工業技術院長 | Laser power detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858008U (en) * | 1981-10-15 | 1983-04-19 | 松下電工株式会社 | Cuff band for blood pressure monitor |
-
1983
- 1983-04-19 JP JP6001483U patent/JPS59164608U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858008B2 (en) * | 1977-07-21 | 1983-12-23 | 工業技術院長 | Laser power detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59164608U (en) | 1984-11-05 |
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