JPH0316643Y2 - - Google Patents
Info
- Publication number
- JPH0316643Y2 JPH0316643Y2 JP1985021644U JP2164485U JPH0316643Y2 JP H0316643 Y2 JPH0316643 Y2 JP H0316643Y2 JP 1985021644 U JP1985021644 U JP 1985021644U JP 2164485 U JP2164485 U JP 2164485U JP H0316643 Y2 JPH0316643 Y2 JP H0316643Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- balloon
- liquid
- communication tube
- air
- 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
- 239000007788 liquid Substances 0.000 claims description 16
- 238000001727 in vivo Methods 0.000 claims description 7
- 239000010409 thin film Substances 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Landscapes
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、生体内圧例えば頭蓋内圧や血圧を生
体内に留置した弾性薄膜製のバルーンにより長期
間にわたつて測定する生体内圧測定装置に関する
ものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an in-vivo pressure measuring device that measures in-vivo pressure, such as intracranial pressure and blood pressure, over a long period of time using an elastic thin-film balloon placed in the in-vivo. It is.
従来の生体内圧を測定するバルーン法は、液体
を充填した弾性薄膜製バルーンを生体内に挿入留
置し、これに連結した連通管を通じて生体内圧を
体外に置かれた圧トランスデユーサで計測する方
法は例えば、特開昭51‐5886号公報等に示されて
いる。生体内圧の測定の正確さは、バルーンに充
填された液体の量に大きく左右される。もしも適
量より多ければ、計測された圧は実際の生体内圧
より高い値を示し、逆に適量より少なければ、不
当に低い圧の値を示す。また、たとえバルーン挿
入前に体外での校正によつて適量が満たされたと
しても、その後の消毒滅菌或いは使用中の液漏れ
などにより校正状態が乱れる虞れがある。
The conventional balloon method for measuring intravital pressure involves inserting and indwelling a liquid-filled elastic thin-film balloon into the living body, and measuring the intravital pressure with a pressure transducer placed outside the body through a communication tube connected to the balloon. is shown in, for example, Japanese Patent Application Laid-Open No. 51-5886. The accuracy of measuring intravital pressure is highly dependent on the amount of fluid filled in the balloon. If the amount is greater than the appropriate amount, the measured pressure will indicate a value higher than the actual internal pressure in the body, and if it is less than the appropriate amount, the measured pressure will indicate an unreasonably low pressure value. Furthermore, even if the appropriate amount is filled by calibrating outside the body before inserting the balloon, there is a risk that the calibrated state will be disturbed due to subsequent disinfection and sterilization or liquid leakage during use.
したがつて、本考案は、バルーンを生体内に留
置中でも随時校正が可能なバルーン法による生体
内圧測定装置を得ることを目的とするものであ
る。 Therefore, an object of the present invention is to provide an in-vivo pressure measuring device using the balloon method, which can be calibrated at any time even when the balloon is indwelling in the living body.
本考案の生体内圧測定装置は液体を充填する様
にした第１のバルーン１に第２のバルーン７を被
せ、これに可撓性の連通管８を連結し、第２のバ
ルーン７の内腔にこの連通管８を通じて空気圧を
供給する手段９と、その空気供給圧を指示する手
段１０とを設けたものである。
In the biological pressure measuring device of the present invention, a second balloon 7 is placed over a first balloon 1 filled with liquid, a flexible communication tube 8 is connected to this, and the inner lumen of the second balloon 7 is covered. A means 9 for supplying air pressure through the communication pipe 8 and a means 10 for indicating the air supply pressure are provided.
本考案の生体内圧測定装置によれば第２のバル
ーン７の内腔に加える空気圧測定装置６のセンサ
ー出力による指示圧とを比較することにより、校
正を行うことができる。
According to the in-vivo pressure measuring device of the present invention, calibration can be performed by comparing the pressure indicated by the sensor output of the air pressure measuring device 6 applied to the inner cavity of the second balloon 7.
以下、図示の実施例により本考案を具体的に説
明する。
Hereinafter, the present invention will be specifically explained with reference to illustrated embodiments.
図は、本考案の好適な実施例を示す一部断面図
である。図において、１は液体を充填した弾性薄
膜製の第１のバルーン、２はこれに連結した可撓
性の連通管、３は連通管２の開口部に結合した三
方向弁、４は液体を満たした充填用注射器、５は
電気的圧トランスデユーサ、６は増幅器及び圧指
示器を有する測定装置本体を示す。三方向弁３
は、第１のバルーン１に液体を充填するときは連
通管２に注射器４を連結し、圧測定時には連通管
２に圧トランスデユーサ５を連結するものであ
る。以上の１〜６は、バルーン式測定装置を構成
する。 The figure is a partially sectional view showing a preferred embodiment of the present invention. In the figure, 1 is a first balloon made of an elastic thin film filled with liquid, 2 is a flexible communication tube connected to this, 3 is a three-way valve connected to the opening of communication tube 2, and 4 is a liquid-filled first balloon. The filling syringe is filled, 5 is an electric pressure transducer, and 6 is the main body of the measuring device with an amplifier and a pressure indicator. three-way valve 3
When filling the first balloon 1 with liquid, a syringe 4 is connected to the communication tube 2, and when measuring pressure, a pressure transducer 5 is connected to the communication tube 2. Items 1 to 6 above constitute a balloon-type measuring device.
７は第１のバルーン１を被包する弾性薄膜製
（シリコンゴム又はポリエチレン等）の第２のバ
ルーン、８はこれに連結した可撓性の連通管（シ
リコンゴム又はポリエチレン等）、９は空気圧を
供給するための注射器、１０はその空気圧を指示
する圧力計を示す。これらの７〜１０は、本考案
により特に追加した部分である。 7 is a second balloon made of an elastic thin film (silicon rubber, polyethylene, etc.) that envelops the first balloon 1; 8 is a flexible communicating tube (silicon rubber, polyethylene, etc.) connected thereto; 9 is an air pressure a syringe for supplying air, and 10 indicates a pressure gauge to indicate its air pressure. These 7 to 10 are parts particularly added according to the present invention.
いま、生体内圧を測定するために２重の第１及
び第２のバルーン１，７を生体内に挿入留置し、
生体内圧がこれに加わると、この圧は、第１のバ
ルーン１とと連通管２の中の液体を通じて圧セン
サー５で感知され、装置本体６に指示される。こ
のとき、適量の液体で第１のバルーン１が充填さ
れていれば、注射器９を押して第２のバルーン７
の内圧が装置本体６の指示する生体内圧と等しく
なるまで空気圧を加えても、６の指示値は変動し
ない。しかし、その点よりも更に加圧を進める
と、圧力計１０に指示された空気圧と同じ圧値が
装置本体６に指示されるようになる。ところが、
第１のバルーン１内の液体が適量より少なすぎた
り、多すぎたりする場合は、バルーン７の内圧を
注射器９で徐々に高めてゆくと、６の指示値が最
初に上昇し始める点が圧力計１０の指示値より低
いか或いは高くなる。したがつて、両者の指示値
が同じになるように充填用注射器４を用いてバル
ーン１内の液量を調節することにより、液体の量
を適量とする校正ができる。 Now, in order to measure the internal pressure in the living body, the double first and second balloons 1 and 7 are inserted and placed in the living body,
When internal pressure is added to this, this pressure is sensed by the pressure sensor 5 through the first balloon 1 and the liquid in the communication tube 2, and is indicated to the main body 6 of the device. At this time, if the first balloon 1 is filled with an appropriate amount of liquid, push the syringe 9 to fill the second balloon 7.
Even if air pressure is applied until the internal pressure of the device becomes equal to the in-vivo pressure indicated by the device body 6, the indicated value of the device body 6 does not change. However, if the pressurization is further advanced beyond that point, the same pressure value as the air pressure indicated by the pressure gauge 10 will be indicated to the main body 6 of the device. However,
If the amount of liquid in the first balloon 1 is too little or too much than the appropriate amount, gradually increase the internal pressure of the balloon 7 with the syringe 9. It becomes lower or higher than a total of 10 indicated values. Therefore, by adjusting the amount of liquid in the balloon 1 using the filling syringe 4 so that both indicated values are the same, it is possible to calibrate the amount of liquid to an appropriate amount.
生体内圧計測中は計測器９を外して、バルーン
７の圧を大気に開放した状態で測定を行う。 During the measurement of the internal pressure of the living body, the measuring device 9 is removed and the pressure of the balloon 7 is released to the atmosphere.
以上説明したとおり、本考案によれば、次のよ
うな顕著な効果が得られる。
As explained above, according to the present invention, the following remarkable effects can be obtained.
(イ) バルーン式生体内圧測定装置において、計測
中に随時校正が可能となる。(b) The balloon-type intravital pressure measuring device can be calibrated at any time during measurement.
(ロ) 生体内に挿入する前に測定装置の校正を必要
としなくなるので、手術前の校正操作による細
菌汚染を防止することができる。(b) Since there is no need to calibrate the measuring device before inserting it into the living body, bacterial contamination due to pre-operative calibration can be prevented.
図は、本考案の好適な実施例を示す一部断面図
である。
１……第１のバルーン、２……連通管、５……
圧トランスデユーサ、７……第２のバルーン、８
……可撓性連通管、９……注射器（空気圧供給手
段）、１０……圧力計（空気供給圧を指示する手
段）。
The figure is a partially sectional view showing a preferred embodiment of the present invention. 1...First balloon, 2...Communication tube, 5...
pressure transducer, 7... second balloon, 8
. . . Flexible communication tube, 9 . . . Syringe (air pressure supply means), 10 . . . Pressure gauge (means for indicating air supply pressure).
Claims (1)
ーンに充填した液体を連通管により体外部に導出
し、その液体圧を体外部の圧トランスデユーサで
計測する型式の生体内圧測定装置において、 上記第１のバルーンを被包する弾性薄膜製の第
２のバルーンと、 一端がこの第２のバルーンの内腔に通じる可撓
性連通管の他端開口部に連結され空気圧を上記第
２のバルーン内腔に上記連通管を通じて供給する
空気供給手段と、 この空気供給圧を指示する手段とを有し、 上記液体圧値と上記第２のバルーンに加える空
気圧値を比較して、上記液体圧を調整して校正を
行う様にして成ることを特徴とする生体内圧測定
装置。[Claim for Utility Model Registration] Liquid filled in a first balloon made of an elastic thin film inserted and indwelling inside a living body is led out of the body through a communication tube, and the liquid pressure is measured by a pressure transducer outside the body. This type of in-vivo pressure measurement device includes a second balloon made of an elastic thin film that encloses the first balloon, and one end of which is connected to an opening at the other end of a flexible communication tube that communicates with the inner cavity of the second balloon. an air supply means connected to each other to supply air pressure to the inner lumen of the second balloon through the communication pipe; and means for indicating the air supply pressure, the liquid pressure value and the air pressure value applied to the second balloon. An apparatus for measuring pressure in a living body, characterized in that calibration is performed by comparing the liquid pressure and adjusting the liquid pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985021644U JPH0316643Y2 (en) | 1985-02-18 | 1985-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985021644U JPH0316643Y2 (en) | 1985-02-18 | 1985-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61139204U JPS61139204U (en) | 1986-08-29 |
| JPH0316643Y2 true JPH0316643Y2 (en) | 1991-04-10 |
Family
ID=30513221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985021644U Expired JPH0316643Y2 (en) | 1985-02-18 | 1985-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316643Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1028320C2 (en) * | 2005-02-17 | 2006-08-21 | Drs Jan Beute | Measuring device and device for determining the blood flow of the gastrointestinal tract, as well as registering the intestinal peristalsis. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125390A (en) * | 1974-06-28 | 1976-03-01 | Siemens Ag | |
| JPS5892339A (en) * | 1981-11-26 | 1983-06-01 | 日本電気三栄株式会社 | Apparatus for measuring internal pressure of living body |
| JPS59144438A (en) * | 1983-02-07 | 1984-08-18 | 日本光電工業株式会社 | Brain pressure measuring sensor and injection liquid amount prescribing method |
-
1985
- 1985-02-18 JP JP1985021644U patent/JPH0316643Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125390A (en) * | 1974-06-28 | 1976-03-01 | Siemens Ag | |
| JPS5892339A (en) * | 1981-11-26 | 1983-06-01 | 日本電気三栄株式会社 | Apparatus for measuring internal pressure of living body |
| JPS59144438A (en) * | 1983-02-07 | 1984-08-18 | 日本光電工業株式会社 | Brain pressure measuring sensor and injection liquid amount prescribing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61139204U (en) | 1986-08-29 |
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