JPH0316562A - Fluid measuring probe - Google Patents
Fluid measuring probeInfo
- Publication number
- JPH0316562A JPH0316562A JP1152776A JP15277689A JPH0316562A JP H0316562 A JPH0316562 A JP H0316562A JP 1152776 A JP1152776 A JP 1152776A JP 15277689 A JP15277689 A JP 15277689A JP H0316562 A JPH0316562 A JP H0316562A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- tube
- measured
- fluid
- pipe
- 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
- 239000000523 sample Substances 0.000 title claims abstract description 85
- 239000012530 fluid Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000013013 elastic material Substances 0.000 claims abstract description 13
- 239000000470 constituent Substances 0.000 claims description 5
- 239000000560 biocompatible material Substances 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 26
- 230000017531 blood circulation Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009545 invasion Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000001902 propagating effect Effects 0.000 abstract description 2
- 210000001147 pulmonary artery Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 210000000779 thoracic wall Anatomy 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000000038 chest Anatomy 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野］ 本発明は管内流体計測用プローブに関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a probe for measuring fluid in a pipe.
従来、管内を流れる流体の流速または流量測定において
は、測定用のブローブを硬質の材料で構戊し、このプロ
ーブを測定対象の管に外部より挟み込んで取り付けたり
、或いは接着固定し、超音波または電磁力等を利用した
センサにより測定している。Conventionally, when measuring the flow velocity or flow rate of a fluid flowing inside a pipe, a measuring probe is constructed of a hard material, and this probe is attached to the pipe to be measured by being sandwiched from the outside, or is fixed with adhesive, and ultrasonic waves or Measured by a sensor that uses electromagnetic force, etc.
ところで、従来のプローブは硬質の材料で構成されてい
るため、被測定管を外部より挟み込んでブローブを取り
付ける方法では、被測定管が軟質管で断面が変化するよ
うな場合には軟質管に影響なく測定することは困難であ
る。また、プローブを接着固定する方法では軟質管への
影響は少なくできるもののプローブを取り付ける摸作が
繁雑になってしまう。By the way, since conventional probes are made of hard materials, the method of attaching the probe by sandwiching the tube to be measured from the outside may affect the soft tube if the tube to be measured is a soft tube and its cross section changes. It is difficult to measure without Furthermore, although the method of adhesively fixing the probe can reduce the effect on the soft tube, it makes the process of attaching the probe complicated.
また、成長期にある生体の血管内の血流を測定する場合
、硬質材料で構成されるプローブでは、血管の戒長に伴
い血管径が増加してゆくため測定箇所の血管をしだいに
圧迫することになり長期間の連続計測は困難である。さ
らにプローブを血管に取り付ける場合、測定する血管の
周囲組織を剥離して取り付けているが、ブローブが変形
しないために必要以上に血管周囲の切開および剥離をし
なくてはならず、血管を剥離する面積が多くなり、生体
への侵襲が大きくなるという問題がある。例えば、第７
図に示すような電磁流量計ブローブｌ２を使用して血流
測定を行う場合、血管の周囲組織を剥離して取り付ける
が、スロットカバーｌ３をはずした後、血管にプローブ
１２を回し、スロットカバーを再びはめる操作を行うた
め、必要以上に血管周囲の切開および剥離をしなくては
ならない。In addition, when measuring blood flow in the blood vessels of living organisms during the growth stage, probes made of hard materials gradually compress the blood vessels at the measurement site because the diameter of the blood vessels increases as the blood vessels lengthen. Therefore, continuous measurement over a long period of time is difficult. Furthermore, when attaching a probe to a blood vessel, the surrounding tissue of the blood vessel to be measured is removed and attached, but in order to prevent the probe from deforming, the area around the blood vessel must be incised and removed more than necessary, resulting in the removal of the blood vessel. There is a problem that the area becomes large and the invasion to the living body becomes large. For example, the seventh
When measuring blood flow using the electromagnetic flow meter probe l2 as shown in the figure, the tissue surrounding the blood vessel is removed and attached. After removing the slot cover l3, the probe 12 is passed around the blood vessel and the slot cover is removed. In order to perform the refitting operation, more incision and dissection around the blood vessel than necessary must be performed.
本発明の目的は断面が変化するような管への影響、成長
期の生体血管内の血流の連続計測、ブＯーブ取り付け時
の生体への過大な侵襲の問題を解決した流体計測用プロ
ーブを提供することにある。The purpose of the present invention is to solve the problem of the influence on tubes whose cross section changes, the continuous measurement of blood flow in living blood vessels during the growing stage, and the excessive invasion of living bodies when attaching a tube. The purpose is to provide probes.
そのために本発明の流体計測用プローブは、被測定管に
取り付けられ、管内流体の流量およびまたは流速を測定
するためのセンサが配設されたプローブにおいて、該プ
ローブ構成材質の少なくとも一部が軟質弾性材料よりな
ることを特徴としており、そのため、生体血管内血流量
およびまたは血流速測定に特に適している。For this purpose, the fluid measuring probe of the present invention is attached to a pipe to be measured and is equipped with a sensor for measuring the flow rate and/or flow velocity of the fluid in the pipe, and at least a part of the probe constituent material is soft elastic. It is characterized by being made of material, and is therefore particularly suitable for measuring blood flow rate and/or blood flow velocity in living blood vessels.
また、本発明は管内流体の流速およびまたは流量を測定
するものであるため、センサ部は超音波、または電磁力
を利用することが望ましい。Furthermore, since the present invention measures the flow velocity and/or flow rate of fluid in a pipe, it is desirable that the sensor section utilizes ultrasonic waves or electromagnetic force.
また、測定対象の流体の流れる管に固定するため、セン
サ保持部にプローブ取付け部を設けることが望ましく、
さらに、ブローブ取付け部は１本または２本以上のひも
状またはテープ形状、フッ〔登録商標〕
ク状の形状、またはマジックテーブ状をしていることが
望ましい。In addition, it is desirable to provide a probe attachment part on the sensor holding part in order to fix it to the pipe through which the fluid to be measured flows.
Furthermore, it is desirable that the probe attachment part has one or more string-like shapes, tape-like shapes, hook-like shapes, or Velcro-like shapes.
さらに、生体血管内血流量およびまたは血流速測定に適
用する場合、ブローブ構成材質の全体または一部、もし
くはプローブ表面材質が生体適合性材料よりなることが
望ましい。Further, when the present invention is applied to measuring blood flow rate and/or blood velocity in a biological blood vessel, it is desirable that all or part of the probe constituent material or the probe surface material be made of a biocompatible material.
本発明は軟質管等の管内流体の流量およびまたは流速を
測定するためのプローブであり、測定対象となる管の外
部よりブローブを取り付けて使用する。プローブ取付け
部がひもまたはテープ状の形状であれば、互いのひもを
結び合わせることにより管に取り付けられ、プローブ取
付け部がフック状のものであれば、フックをかみ合わせ
ることにより固定できる。また、プローブ取付け部がマ
ジックテーブ状のものであれば、一方のマジックテープ
を巻きつけることにより固定できる。The present invention is a probe for measuring the flow rate and/or flow velocity of fluid in a pipe such as a soft pipe, and is used by attaching a probe from the outside of the pipe to be measured. If the probe attachment part has a string or tape shape, it can be attached to the tube by tying the strings together, and if the probe attachment part has a hook shape, it can be fixed by engaging the hooks. Furthermore, if the probe attachment part is in the shape of a Velcro tape, it can be fixed by wrapping one Velcro tape around it.
また、測定対象となる管が血管である場合は、必要部位
を切開し、プローブ本体が取り付けられる必要最小限の
血管を剥離し、プローブ取付け部を血管に鉗子を使用し
て巻きつけ、プローブ取り付け形状に合わせた取付け方
法により固定する。In addition, if the tube to be measured is a blood vessel, incise the necessary part, peel off the minimum necessary blood vessel to which the probe body is attached, wrap the probe attachment part around the blood vessel using forceps, and attach the probe. Fix using a mounting method that matches the shape.
以下、実施例を図面を参照して説明する。 Examples will be described below with reference to the drawings.
第ｌ図は本発明の流体計測用プローブの一実施例を示す
図である。図中、１は超音波センサ、２はセンサ保持部
、３ａ，３ｂはプローブ取りつけ部、４はケーブルであ
る。FIG. 1 is a diagram showing an embodiment of the fluid measurement probe of the present invention. In the figure, 1 is an ultrasonic sensor, 2 is a sensor holding part, 3a and 3b are probe attachment parts, and 4 is a cable.
図においてはプローブのセンサ保持部２およびブローブ
取付け部３ａ，３ｂを軟質弾性材料で構成し、本実施例
のように全体としてＣ字形状のものは、ブローブ取付け
ｉｆｆｌ３ａ． ３ｂの弾性を利用して被測定管には
め込めばよい。センサ保持部２およびプローブ取付け部
３ａ．３ｂが軟質弾性材料であるので、被測定管の径が
変化する場合にもそれを阻害することがなく、また血管
等に変形させながら取り付けることができるので、生体
への過大な侵襲を防ぐことができる。そして、超音波七
ンサ１によりシングアラウンド法等で管内流体の流速を
測定し、また被測定管の管軸に直角方向に伝播する超音
波の伝播時間を測定することにより管の断面積を求める
ことができる。検出信号はケーブル４を通して測定器（
図示せず）へ伝送される。In the figure, the sensor holding part 2 and the probe mounting parts 3a, 3b of the probe are made of soft elastic material, and in the case of the probe having a C-shape as a whole as in this embodiment, the probe mounting part 2a, 3b is made of a soft elastic material. It is only necessary to use the elasticity of 3b to fit it into the tube to be measured. Sensor holding part 2 and probe mounting part 3a. Since 3b is made of a soft elastic material, it will not interfere with changes in the diameter of the tube to be measured, and can be attached to blood vessels etc. while being deformed, thus preventing excessive invasion of the living body. I can do it. Then, the cross-sectional area of the pipe is determined by measuring the flow velocity of the fluid in the pipe using the sing-around method using the ultrasonic sensor 1, and by measuring the propagation time of the ultrasonic wave propagating perpendicularly to the pipe axis of the pipe to be measured. be able to. The detection signal is passed through the cable 4 to the measuring device (
(not shown).
なお、上記説明ではプローブのセンサ保持部とプローブ
取付け部を軟質弾性材料で構成するようにしたが、セン
サ保持部とプローブ取付け部の一方を軟質弾性材料で構
成したり、或いはそれらの−ＩＩを軟質弾性材料とする
など、被測定管に対応して適宜選択することも可能であ
る。In the above explanation, the sensor holding part and the probe mounting part of the probe are made of a soft elastic material, but one of the sensor holding part and the probe mounting part may be made of a soft elastic material, or their -II It is also possible to select an appropriate material, such as a soft elastic material, depending on the tube to be measured.
第２図は本発明の流体計測用ブローブの他の実施例を示
す図である。FIG. 2 is a diagram showing another embodiment of the fluid measuring probe of the present invention.
本実施例においては、プローブ取付け１３ａ，３ｂがひ
もである点を除けば第１図と同様である。This embodiment is the same as that in FIG. 1 except that the probe attachments 13a and 3b are strings.
取り付けに際しては、互いのひもを結び合わせればよく
、ひもは１本でも２本以上でもよい。また、ひもをゴム
状の伸縮性のある材質で構成すれば軟質管等における測
定に特に好適である。また、ひもに代えてテープ状とし
てもよいことはもちろんである。When attaching, it is sufficient to tie the strings together, and the number of strings may be one or two or more. Furthermore, if the string is made of a rubber-like elastic material, it is particularly suitable for measurements in soft tubes and the like. Moreover, it goes without saying that a tape-like material may be used instead of a string.
第３図は本発明の流体計測用ブローブの他の実施例を示
す図である。FIG. 3 is a diagram showing another embodiment of the fluid measuring probe of the present invention.
本実施例においては、プローブ取付け部３ａ，３ｂをフ
ック係合させるようにした以外は第１図と同様であり、
例えば取付け部３ｂの先端をフック状とし、取付け部３
ａに複数の係止片を設け、フックを係止片に引っ掛ける
ことにより各種径の被測定管に取り付けることができる
。This embodiment is the same as that in FIG. 1 except that the probe attachment parts 3a and 3b are engaged with hooks.
For example, the tip of the attachment part 3b is made into a hook shape, and the attachment part 3
A is provided with a plurality of locking pieces, and by hooking the hook onto the locking pieces, it can be attached to pipes to be measured of various diameters.
第４図は本発明の流体計測用プローブの他の実施例を示
す図である。FIG. 4 is a diagram showing another embodiment of the fluid measurement probe of the present invention.
本実施例においては、プローブ取付け部３ａ，３ｂをマ
ジックテープ係合させるようにした以外は第ｌ図と同様
であり、マジックテープを単に合わせるだけで容易に取
り付けができる。また、マジックテーブに長さをもたせ
れば、係合位置をずらすことにより各種径の被測定管に
取り付けることができる。This embodiment is the same as that shown in FIG. 1 except that the probe attachment parts 3a and 3b are engaged with Velcro, and can be easily attached by simply aligning the Velcro. Furthermore, if the magic tape has a length, it can be attached to pipes to be measured of various diameters by shifting the engagement position.
第５図は前記各実施例に説明したような本発明の流体計
測用プフーブを被測定管に取り付けた状態を示す斜視図
である。図中、５は軟質管、６は流体、７はオイルまた
はゼリー状液体である。FIG. 5 is a perspective view showing a state in which the fluid measuring probe of the present invention as described in each of the above embodiments is attached to a pipe to be measured. In the figure, 5 is a soft tube, 6 is a fluid, and 7 is an oil or jelly-like liquid.
軟質塩ビチューブ、シリコンチューブ等の軟質管５内の
流体６の流量を超音波を利用して測定しようとする場合
、センサ部が管に接触する面に超音波の伝達時の減衰を
低減するため、オイルまたはゼリー状の液体７を塗布し
、軟質塩ビ管等の測定しようとする部位に取り付ける。When trying to measure the flow rate of the fluid 6 in a soft pipe 5 such as a soft PVC tube or a silicone tube using ultrasonic waves, in order to reduce attenuation when transmitting ultrasonic waves to the surface where the sensor unit contacts the pipe. , apply an oil or jelly-like liquid 7, and attach it to the part to be measured, such as a soft PVC pipe.
この場合、第１図に示すような全体としてＣ字形状のも
のは、プローブ取付けＢ３ａ．３ｂの弾性を利用して被
測定管にはめ込めばよい。第２図に示すものの場合は互
いのひもを結び合わせることにより、軟質管５に固定で
きる。第３図の例の場合には、フックを係止片に引っ掛
ければよく、また第４図の例の場合はマジックテープで
止めればよい。In this case, if the overall C-shape shown in FIG. 1 is used, the probe attachment B3a. It is only necessary to use the elasticity of 3b to fit it into the tube to be measured. In the case of the one shown in FIG. 2, it can be fixed to the soft tube 5 by tying the strings together. In the case of the example shown in FIG. 3, the hook may be hooked onto the locking piece, and in the case of the example shown in FIG. 4, it may be secured with Velcro.
固定後、軟質管５が内部を流れる流体６の圧力等の変化
により断面が変形した場合でも、プローブが軟質弾性材
料で構戊されているため、軟質管５に対するブローブを
取付けた影響を最小限におさえて流れの状態を測定でき
る。Even if the cross section of the soft tube 5 is deformed due to changes in the pressure of the fluid 6 flowing inside it after it is fixed, the influence of the probe attachment on the soft tube 5 is minimized because the probe is made of a soft elastic material. The state of the flow can be measured by controlling the flow rate.
さらに、センサ８１を複数設け、管径と流速を同時に計
測することにより、管内の流量の測定が可能となる。Furthermore, by providing a plurality of sensors 81 and simultaneously measuring the pipe diameter and flow velocity, it is possible to measure the flow rate in the pipe.
第６図は本発明の流体計測用ブローブにより血管内の血
流を測定する実施例を示す図である。図中、８は肺動脈
、９は鉗子、１０は胸壁、１１は生体組織である。FIG. 6 is a diagram showing an embodiment of measuring blood flow in a blood vessel using the fluid measuring probe of the present invention. In the figure, 8 is a pulmonary artery, 9 is a forceps, 10 is a chest wall, and 11 is a living tissue.
図示するように、例えば肺動脈内の血流量を測定する場
合は、胸壁１０の必要箇所を切開し、さらに肺動脈回り
の組織ｌ１を剥離し、肺動脈８の一部を露出させるが、
組織を剥離する面積は本発明のブローブを巻きつけるこ
とが可能な最小限でよく、ほかに指を入れる部分まで確
保する必要がない。組織の剥離後、鉗子９を用いてブロ
ーブを取付け部３ａの先端に挟み、肺動脈へ巻きつけた
後、例えば第２図に示すようにプローブ取付け部がひも
状の形状をしたものでは、ブローブ取付け部３ａと３ｂ
を互いに結び合わせ肺動脈８に固定する。プローブの固
定後は、切開箇所を縫合し、胸部１０よりセンサのケー
ブル４を出して胸部を閉じる。ケーブルの他端を測定器
（図示せず）へ接続し、血流を測定する。但し、センサ
部に電波や光で信号を伝送する発信機構を有するテレメ
タリングシステムを用いる場合は、ケーブル４が胸壁を
貫通する必要がなく、さらに好ましい。As shown in the figure, for example, when measuring the blood flow in the pulmonary artery, the chest wall 10 is incised at a necessary location, and the tissue l1 around the pulmonary artery is peeled off to expose a part of the pulmonary artery 8.
The area where the tissue is to be peeled off may be the minimum area that allows the probe of the present invention to be wrapped around it, and there is no need to secure an area for inserting a finger. After detaching the tissue, use the forceps 9 to pinch the probe at the tip of the attachment part 3a and wrap it around the pulmonary artery. For example, if the probe attachment part has a string-like shape as shown in FIG. Parts 3a and 3b
are tied together and fixed to the pulmonary artery 8. After fixing the probe, the incision is sutured, the sensor cable 4 is taken out from the chest 10, and the chest is closed. The other end of the cable is connected to a measuring device (not shown) to measure blood flow. However, if a telemetering system is used in which the sensor section has a transmission mechanism that transmits signals using radio waves or light, the cable 4 does not need to penetrate the chest wall, which is more preferable.
特に超音波を利用して血流量を測定する場合は、センサ
Ｂ１を複数個の超音波振動子で構成し、血管径と同時計
測することで血管径が変化した場合も連続で流量計測が
可能である。In particular, when measuring blood flow using ultrasound, sensor B1 is configured with multiple ultrasound transducers, and by measuring the blood vessel diameter simultaneously, continuous flow measurement is possible even when the blood vessel diameter changes. It is.
また、超音波を使用した場合以外では、電磁力を利用し
たセンサの場合においても同様である。In addition to the case where ultrasonic waves are used, the same applies to sensors using electromagnetic force.
この場合は、被測定管の管軸に直交させて磁場をかけて
おき、導電性流体が流れて磁場を横切ったときに発生す
る電圧を測定するものであり、測定原理が異なるのみで
他は超音波センサを使用する場合と同様である。In this case, a magnetic field is applied perpendicular to the tube axis of the tube to be measured, and the voltage generated when a conductive fluid flows and crosses the magnetic field is measured; the only difference is the measurement principle. This is the same as when using an ultrasonic sensor.
なお、長期間生体に埋め込んで使用する場合は、プロー
ブの構成材料の一部または全部を生体適合性材料である
シリコンゴム、ウレタンゴム等の材料を用いることが良
く、またテフロン系の不活性材料を用いてもよい。また
、表面をこれらの材料でコーティングして用いてもよい
。If the probe is to be implanted in a living body for a long period of time, it is recommended to use a biocompatible material such as silicone rubber or urethane rubber as part or all of the probe's constituent materials, or an inert material such as Teflon. may also be used. Alternatively, the surface may be coated with these materials.
本発明の流体計測用プローブは、プローブの構成部材が
軟質の弾性材料であることを特徴としており、軟質の塩
ビ管、シリコン管内の流量、流速を測定しようとする場
合、管内の流体の圧力等により管断面が変化したような
場合も管の変化に応じてプローブ形状も変化し、被測定
管に対してはプローブを取付けた影響を最小限にでき、
センサに対しては管からの脱落を防ぎ、安定して流れの
の測定を行うことができる。また、プローブ取付け部形
状をひも状、テープ状、フック状またはマジックテープ
状の形態とすることにより、被測定管に対して簡単に装
着でき、センサを接着材で取付ける場合のように接着材
の塗布、接着材の硬化までのセンサ部の保持等の繁雑な
作業を必要としない。The fluid measuring probe of the present invention is characterized in that the constituent members of the probe are made of a soft elastic material. Even if the pipe cross section changes due to the change in the pipe cross section, the shape of the probe will change according to the change in the pipe, and the effect of installing the probe on the pipe to be measured can be minimized.
The sensor can be prevented from falling off the pipe and stable flow measurements can be performed. In addition, by making the probe attachment part shaped like a string, tape, hook, or Velcro, it can be easily attached to the pipe under test. There is no need for complicated work such as applying the adhesive or holding the sensor part until the adhesive hardens.
また、血管内の血流計測に使用する場合は、血管周囲の
組織の剥離が硬質材料で構成されたブローブの場合は必
要以上に多くなるのに対し、本プローブの場合は、鉗子
またはプローブが通過するための必要最小限ですむ。Additionally, when used to measure blood flow within a blood vessel, a probe made of a hard material will cause more tissue to be peeled off than necessary, whereas this probe can be used with forceps or a probe. You only need the minimum necessary to pass.
さらに、成長期の生体の血流を長期連続測定しようとす
る場合、血管の戒長に合わせ、ブローブも変化してゆく
ために血管径が増加した場合に、ブローブ部分に狭窄を
作ることがないので、血流障害を起こすことなく患者へ
の負担が少なく安定した測定が行うことができる。Furthermore, when trying to continuously measure blood flow in a growing organism over a long period of time, the probe changes as the blood vessel length increases, so there is no possibility of stenosis in the probe when the blood vessel diameter increases. Therefore, stable measurements can be performed with less burden on the patient without causing blood flow disorders.
第ｌ図はプローブ取付け部がＣ字状をした本発明の一実
施例を示す図、第２図はプローブ取付け部がひも状の形
状をした本発明の他の実施例を示す図、第３図はブロー
ブ取付け部がフック状の形状をした本発明の他の実施例
を示す図、第４図はブローブ取付け部がマジックテープ
状の形状をした本発明の他の実施例を示す図、第５図は
本発明のプローブを軟質管に装着した場合の斜視図、第
６図は本発明のプローブを肺動脈に鉗子を用いて装着し
ようとする場合の斜視図、第７図は従来の電磁流量計プ
ローブを示す図である。
ｌ・・・センサ部、２・・・センサ保持部、３ａ，３ｂ
・・・プローブ取付け部、４・・・ケーブル、５・・・
軟質管、６・・・被測定流体、７・・・ゼリー状液体、
８・・・肺動脈、９・・・鉗子、１０・・・胸壁、ｌ１
・・・肺動脈周囲組織。
出 願 人 テルモ株式会社Fig. 1 shows an embodiment of the present invention in which the probe mounting part is C-shaped, Fig. 2 shows another embodiment of the invention in which the probe mounting part has a string-like shape, and Fig. 3 Figure 4 shows another embodiment of the present invention in which the probe attachment part has a hook-like shape; Figure 4 shows another embodiment of the invention in which the probe attachment part has a Velcro-like shape; Figure 5 is a perspective view when the probe of the present invention is attached to a soft tube, Figure 6 is a perspective view when the probe of the present invention is attached to the pulmonary artery using forceps, and Figure 7 is a conventional electromagnetic flow rate. FIG. l...Sensor part, 2...Sensor holding part, 3a, 3b
...Probe mounting part, 4...Cable, 5...
Soft tube, 6... Fluid to be measured, 7... Jelly-like liquid,
8... Pulmonary artery, 9... Forceps, 10... Chest wall, l1
...Tissues around pulmonary arteries. Applicant Terumo Corporation
Claims (3)
または流速を測定するためのセンサが配設されたプロー
ブであって、該プローブ構成材質の少なくとも一部が軟
質弾性材料よりなることを特徴とする流体計測用プロー
ブ。(1) A probe that is attached to a pipe to be measured and equipped with a sensor for measuring the flow rate and/or flow velocity of the fluid in the pipe, characterized in that at least a part of the material constituting the probe is made of a soft elastic material. Probe for fluid measurement.
体の流速およびまたは流量を測定することを特徴とする
請求項１記載の流体計測用プローブ。(2) The fluid measurement probe according to claim 1, wherein the sensor measures the flow velocity and/or flow rate of the fluid in the pipe using ultrasonic waves or electromagnetic force.
プローブ表面材質が生体適合性材料よりなる請求項１記
載の流体計測用プローブ。(3) The fluid measurement probe according to claim 1, wherein all or part of the probe constituent material or the probe surface material is made of a biocompatible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1152776A JPH0316562A (en) | 1989-06-14 | 1989-06-14 | Fluid measuring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1152776A JPH0316562A (en) | 1989-06-14 | 1989-06-14 | Fluid measuring probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0316562A true JPH0316562A (en) | 1991-01-24 |
Family
ID=15547897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1152776A Pending JPH0316562A (en) | 1989-06-14 | 1989-06-14 | Fluid measuring probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316562A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247214A (en) * | 2005-03-11 | 2006-09-21 | Matsushita Electric Ind Co Ltd | Ultrasonic probe, and ultrasonic diagnostic apparatus using the same |
| JP2008183414A (en) * | 2008-03-19 | 2008-08-14 | Seiko Instruments Inc | Apparatus for measuring circulation movement, method for circulation movement, blood pressure measurement method, and sensor for circulation movement |
| JP2010529436A (en) * | 2007-06-07 | 2010-08-26 | ハーフナー，ゲオルグ | Apparatus and method for non-destructive testing of objects |
| JP2012085789A (en) * | 2010-10-19 | 2012-05-10 | Seiko Epson Corp | Blood vessel diameter measurement device |
| CN107389799A (en) * | 2017-08-14 | 2017-11-24 | 东莞理工学院 | Flexible failure detector for ultrasonic guided wave detecting |
| WO2019235517A1 (en) * | 2018-06-05 | 2019-12-12 | Tani Kazuo | Blood flow volume measurement system |
| JP2020142056A (en) * | 2019-03-07 | 2020-09-10 | 和雄 谷 | In-vivo implantation type blood flow rate probe |
| KR20210053993A (en) * | 2018-10-22 | 2021-05-12 | 카즈오 타니 | Blood flow probe, blood flow sensor and blood flow meter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157905B2 (en) * | 1982-06-07 | 1986-12-09 | Ulvac Corp | |
| JPS6157906B2 (en) * | 1981-11-12 | 1986-12-09 | Matsushita Electric Ind Co Ltd | |
| JPS62120839A (en) * | 1985-11-19 | 1987-06-02 | 富士通株式会社 | Probe holder for ultrasonic blood flow meter |
-
1989
- 1989-06-14 JP JP1152776A patent/JPH0316562A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157906B2 (en) * | 1981-11-12 | 1986-12-09 | Matsushita Electric Ind Co Ltd | |
| JPS6157905B2 (en) * | 1982-06-07 | 1986-12-09 | Ulvac Corp | |
| JPS62120839A (en) * | 1985-11-19 | 1987-06-02 | 富士通株式会社 | Probe holder for ultrasonic blood flow meter |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247214A (en) * | 2005-03-11 | 2006-09-21 | Matsushita Electric Ind Co Ltd | Ultrasonic probe, and ultrasonic diagnostic apparatus using the same |
| JP2010529436A (en) * | 2007-06-07 | 2010-08-26 | ハーフナー，ゲオルグ | Apparatus and method for non-destructive testing of objects |
| US8454233B2 (en) | 2007-06-07 | 2013-06-04 | Georg Hafner | Device and method for the non-destructive testing of objects |
| JP2008183414A (en) * | 2008-03-19 | 2008-08-14 | Seiko Instruments Inc | Apparatus for measuring circulation movement, method for circulation movement, blood pressure measurement method, and sensor for circulation movement |
| JP4754597B2 (en) * | 2008-03-19 | 2011-08-24 | セイコーインスツル株式会社 | Cardiodynamic measurement device, cardiovascular sensor |
| JP2012085789A (en) * | 2010-10-19 | 2012-05-10 | Seiko Epson Corp | Blood vessel diameter measurement device |
| CN107389799A (en) * | 2017-08-14 | 2017-11-24 | 东莞理工学院 | Flexible failure detector for ultrasonic guided wave detecting |
| WO2019235517A1 (en) * | 2018-06-05 | 2019-12-12 | Tani Kazuo | Blood flow volume measurement system |
| KR20210053993A (en) * | 2018-10-22 | 2021-05-12 | 카즈오 타니 | Blood flow probe, blood flow sensor and blood flow meter |
| JP2020142056A (en) * | 2019-03-07 | 2020-09-10 | 和雄 谷 | In-vivo implantation type blood flow rate probe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4245648A (en) | Method and apparatus for measuring blood pressure and pulse rate | |
| US6939305B2 (en) | Rapid non-invasive blood pressure measuring device | |
| US6514211B1 (en) | Method and apparatus for the noninvasive determination of arterial blood pressure | |
| US6652466B2 (en) | Blood flow volume measurement method and vital sign monitoring apparatus | |
| JP5441715B2 (en) | Optical power modulation | |
| EP2348975B1 (en) | Method of determining blood pressure and an apparatus for determining blood pressure | |
| US20030032886A1 (en) | System for determining coronary flow reserve (CFR) value for a stenosed blood vessel, CFR processor therefor, and method therefor | |
| WO1997012545B1 (en) | Apparatus and method for measuring an induced perturbation to determine a physiological parameter | |
| KR20150082401A (en) | Improved blood pressure monitor and method | |
| JPH09506024A (en) | Apparatus and method for measuring induced perturbations to determine physiological parameters | |
| WO2001054584A1 (en) | Ultrasonic apparatus and technique to measure changes in intracranial pressure | |
| JP2001520535A (en) | Apparatus and method for measuring induced perturbations to determine physiological parameters | |
| JP6508325B2 (en) | Method for determining blood pressure in a blood vessel, and device for carrying out the method | |
| JPH0316562A (en) | Fluid measuring probe | |
| JPH11513276A (en) | Detection of vascular stenosis in chronic hemodialysis patients | |
| Reddy et al. | Noninvasive blood pressure measurement in mice using pulsed Doppler ultrasound | |
| JP2882797B2 (en) | Peripheral resistance test output device | |
| JPH05137730A (en) | Blood flow regulating device for hand and blood pressure measuring method applying this device | |
| JP2618236B2 (en) | Blood pressure measurement device | |
| JPH0431256B2 (en) | ||
| JP2006122581A (en) | Probe for ultrasonic diagnostic apparatus | |
| Thomas et al. | Monitoring arterial blood pressure | |
| JP2000516117A (en) | Male disability diagnosis ultrasound system | |
| JPH0524326Y2 (en) | ||
| JPH0524325Y2 (en) |