JP4582505B2 - Respiratory ventilation indicator and measuring method of respiratory ventilation displacement - Google Patents

Respiratory ventilation indicator and measuring method of respiratory ventilation displacement Download PDF

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JP4582505B2
JP4582505B2 JP2008073532A JP2008073532A JP4582505B2 JP 4582505 B2 JP4582505 B2 JP 4582505B2 JP 2008073532 A JP2008073532 A JP 2008073532A JP 2008073532 A JP2008073532 A JP 2008073532A JP 4582505 B2 JP4582505 B2 JP 4582505B2
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隆進 呉
克美 宮川
一昭 斉藤
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医療法人新明会 都島放射線科クリニック
ニイガタ機電株式会社
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本発明は、被検者の呼吸動作に伴う、被検者の体幹部の動作を特定する呼吸換気量インジケータ及び呼吸換気変位量の測定方法に関するものである。   The present invention relates to a respiratory ventilation indicator that identifies the movement of the trunk of a subject accompanying the respiratory motion of the subject, and a respiratory ventilation displacement measuring method.

従来、体幹部定位放射線治療時における呼吸同期照射には、いろいろな方法が提案され、各施設が独自の方法に取り込んでいる。簡易的な呼吸位相モニタリングとしては腹壁の働きを捉える方法が一般的であるが、正確なモニタリングのためには患者への十分な教育・練習が必要となる。これは、横隔膜には筋紡錘が少ないため、呼吸位相に関係なく随意的に腹壁を動かすことが可能となるからである。   Conventionally, a variety of methods have been proposed for respiratory synchronized irradiation during stereotactic body radiotherapy, and each facility has adopted its own method. As a simple respiratory phase monitoring, a method of capturing the action of the abdominal wall is common, but sufficient education and practice for the patient is necessary for accurate monitoring. This is because the diaphragm has few muscle spindles, so that the abdominal wall can be moved arbitrarily regardless of the respiratory phase.

しかし、呼吸時の肋間筋の動きは不随意的であり、肋間筋には筋紡錘が多く、胸郭の動きを制限させると呼吸不可能となる。このような生理学的理由から呼吸位相モニタリングには、純粋に胸郭の堆積変化を捉えるのが理想的であると考える。   However, the movement of the intercostal muscles during breathing is involuntary, and there are many muscle spindles in the intercostal muscles, and if the movement of the rib cage is restricted, it becomes impossible to breathe. For these physiological reasons, it is ideal to capture the changes in the thorax deposition purely for respiratory phase monitoring.

呼吸位相モニタリングに従来法のように腹壁の動きのみを捉える方法では、上記のように教育・練習により患者に恣意的な呼吸を強いる必要があり、自然な呼吸下での使用が困難な場合がある。   In the method of capturing only the movement of the abdominal wall as in the conventional method for respiratory phase monitoring, it is necessary to force the patient to breathe arbitrarily by education and practice as described above, and it may be difficult to use under natural breathing. is there.

この問題を解決する一つの方法として、胸部および腹部の2点の動きを捉える装置を用いる方法がある(特許文献1)。
特開2006−263461号公報
As one method for solving this problem, there is a method using a device that captures two movements of the chest and abdomen (Patent Document 1).
JP 2006-263461 A

しかし、特許文献1記載の装置を用いた方法(以下、従来法と呼称する)において、呼吸位相モニタリングとして計測するのは、胸部あるいは腹部の“点”での変位量であり、微弱な変位量検出に伴う誤差や変位量検出手段と被測定部位の接触状態の変動などにより、測定データにバラツキが生じてしまい計測の再現性に問題点があった。   However, in the method using the apparatus described in Patent Document 1 (hereinafter referred to as the conventional method), what is measured as respiratory phase monitoring is the displacement at the “point” of the chest or abdomen, and the slight displacement There is a problem in the reproducibility of measurement due to variations in measurement data due to errors accompanying detection, fluctuations in the contact state between the displacement detection means and the measurement site, and the like.

また体幹部定位放射線治療では、毎回の治療における患者位置の正確な再現性が要求されるため、体幹部の固定が重要であり各種の固定具が使用される。しかし従来法では、固定具を使用すると被測定部位とモニタリング検出器との接触が不可能となり、装置自体が使用できない問題点があった。   Moreover, in the stereotactic body radiotherapy, accurate reproducibility of the patient position in each treatment is required, so that the fixation of the trunk is important and various fixtures are used. However, in the conventional method, when a fixture is used, there is a problem that the measurement site cannot be contacted with the monitoring detector, and the apparatus itself cannot be used.

さらに従来法では装置に器械系が必要であり、放射線治療時の治療ビームの方向性に制約がかかったり、取扱が煩雑であったり、器械的な故障などの問題点があった。   Furthermore, the conventional method requires an instrumental system, and there are problems such as restrictions on the direction of the treatment beam during radiotherapy, complicated handling, and instrumental failures.

本発明はこのような問題点を解決したもので、被検者の呼吸による体幹部の動きを正確に測定可能にするとともに、測定データの再現性を改善し、固定具を使用した体幹部定位放射線治療にも使用でき、放射線治療時に装置が邪魔にならず、誰にでも簡単に取り扱え、器械的故障の心配の無い呼吸換気量インジケータ及び呼吸換気変位量の測定方法を提供する点である。   The present invention solves such a problem, enables accurate measurement of the movement of the trunk due to breathing of the subject, improves the reproducibility of the measurement data, and supports the localization of the trunk using a fixture. The present invention provides a respiratory ventilation indicator and a method for measuring respiratory ventilation displacement that can be used for radiation therapy, can be easily handled by anyone, and can be easily handled by anyone without being disturbed during radiation therapy.

請求項1の発明は、可撓性を有する体幹部当接部を備え流体を充填したバッグの流体出入口に流量計又は流体圧力計を介して閉鎖システム内圧緩衝器を接続し、前記流量計又は流体圧力計に表示手段を備えたことを特徴とする。   According to the first aspect of the present invention, a closed system internal pressure buffer is connected via a flow meter or a fluid pressure gauge to a fluid inlet / outlet of a bag having a flexible trunk contact portion and filled with fluid. The fluid pressure gauge is provided with display means.

請求項2の発明は、請求項1記載の前記呼吸換気量インジケータにおいて、前記流量計の流量又は前記流体圧力計の圧力に応じて前記体幹部当接部の変位量を演算手段を介して算出することを特徴とする。   According to a second aspect of the present invention, in the respiratory ventilation indicator according to the first aspect, a displacement amount of the trunk contact portion is calculated via a calculation unit in accordance with a flow rate of the flow meter or a pressure of the fluid pressure gauge. It is characterized by doing.

請求項1の発明によれば、直接計測することが困難である被検者の体幹部、特に胸郭の体積変化を精度良く計測することが可能となる。また、点ではなく面での変位量検出を可能としたことで、バッグの体幹部当接部と体幹部との接触状態の変動に伴う測定データのバラツキを抑制し、この呼吸換気量インジケータによる測定データの再現性を改善させている。さらに、被検者に恣意的な呼吸を強いる必要がなく、自然な呼吸下で計測を行うことが可能となり、被検者の負担を抑制するとともに呼吸換気量インジケータを用いた計測の簡略化を図ることができる。また、バッグを被測定部位と固定具の間に挟みこむ位置に置き使用することを可能としたことで、被検者の体幹部、特に胸部の腫瘍位置に対して自由な方向からの放射線照射又は撮影が可能となり、固定具を使用した体幹部定位放射線治療にも使用可能とし、放射線治療又は各種撮影の自由度を向上させる。さらに、呼吸換気量インジケータから可動する器械部分を無くすことにより、単純な閉鎖空間システムだけで構成される装置を可能とし、放射線治療時に装置が邪魔にならず、呼吸換気量インジケータに関する被検者への装着作業、計測作業、又はメンテナンス作業等の各種作業を誰でも簡単に取り扱えものとし、さらに器械的故障の心配を無くし、その上、器械部分の動作の優劣に起因されるような測定データのばらつきを無くし、この呼吸換気量インジケータによる測定データの再現性を改善させる。   According to the first aspect of the present invention, it is possible to accurately measure the volume change of the trunk of the subject, particularly the thorax, which is difficult to directly measure. In addition, by making it possible to detect the amount of displacement at the surface instead of the point, the variation in measurement data due to fluctuations in the contact state between the trunk contact portion and the trunk portion of the bag is suppressed, and this respiratory ventilation indicator The reproducibility of measurement data is improved. Furthermore, it is not necessary to force the subject to take arbitrary breathing, and measurement can be performed under natural breathing, reducing the burden on the subject and simplifying the measurement using the respiratory ventilation indicator. Can be planned. In addition, by allowing the bag to be used in a position where it is sandwiched between the site to be measured and the fixture, it is possible to irradiate radiation from any direction with respect to the tumor position of the subject's trunk, particularly the chest. Or imaging | photography is attained, and it can also be used for trunk stereotactic radiotherapy using a fixing tool, and the freedom degree of radiotherapy or various imaging | photography is improved. Furthermore, by eliminating the movable instrument part from the respiratory ventilation indicator, it is possible to provide a device that consists only of a simple enclosed space system, so that the device does not get in the way during radiation therapy and to the subject regarding the respiratory ventilation indicator. Anyone can easily handle various work such as mounting work, measurement work, maintenance work, etc., and there is no worry of mechanical failure. The variation is eliminated and the reproducibility of the measurement data by this respiratory ventilation indicator is improved.

請求項2の発明によれば、請求項1の発明の効果に加え、被検者の体幹部、特に胸郭の体積変化をさらに精度良く計測することが可能となる。   According to the invention of claim 2, in addition to the effect of the invention of claim 1, it is possible to measure the volume change of the trunk of the subject, particularly the thorax, with higher accuracy.

本発明における好適な実施の形態について、添付図面を参照して説明する。尚、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。   Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

図1乃至図6に本発明の呼吸換気量インジケータの一実施例を示す。   1 to 6 show an embodiment of the respiratory ventilation indicator of the present invention.

図1は呼吸換気量インジケータ1の構造を示すブロック図である。図中の符号1は呼吸換気量インジケータ1を示している。この呼吸換気量インジケータ1は、変換手段としてのエアバッグ4と、このエアバッグ4を被検者2の体幹部3側に押圧固定可能な固定手段5と、エアバッグ4と流通路としてのチューブ部材6を介して相互の内部気体Gを流通可能に接続された閉鎖システム内圧緩衝器としての風船7と、チューブ部材6に配設された流量計8と、前記流量計8に接続された演算手段としての端末装置9とを備えている。   FIG. 1 is a block diagram showing the structure of the respiratory ventilation indicator 1. Reference numeral 1 in the figure indicates a respiratory ventilation indicator 1. The respiratory ventilation indicator 1 includes an airbag 4 as a conversion means, a fixing means 5 capable of pressing and fixing the airbag 4 to the trunk 3 side of the subject 2, and a tube as an airbag 4 and a flow passage. A balloon 7 as a closed system internal pressure buffer connected to be able to circulate the internal gas G through the member 6, a flow meter 8 disposed in the tube member 6, and an operation connected to the flow meter 8 And a terminal device 9 as means.

エアバッグ4は、ポリウレタン、シリコンゴム、天然ゴム、塩化ビニール等の可撓性を有する樹脂製からなる膨張収縮自在な袋状体からなり、体幹部当接部4Aが被検者2の体幹部3、特に胸部を被覆可能な面積に形成されたものである。ここで、このエアバッグ4を構成する袋状体の一部には、袋状体内外を連通する開口部を備え、この開口部と前記チューブ部材6の一端10とは接続可能に設けられている。なお、エアバッグ4、特に体幹部当接部4Aは、シリコンゴム、天然ゴム等の可撓性且つ弾力性を有する樹脂材料からなるものとしても構わないものとする。   The airbag 4 is made of an inflatable / shrinkable bag-like body made of a flexible resin such as polyurethane, silicone rubber, natural rubber, vinyl chloride, and the trunk contact portion 4A is the trunk of the subject 2. 3. In particular, it is formed in an area that can cover the chest. Here, a part of the bag-shaped body constituting the airbag 4 includes an opening communicating with the inside and outside of the bag-shaped body, and the opening and the one end 10 of the tube member 6 are provided to be connectable. Yes. The airbag 4, particularly the trunk contact portion 4A, may be made of a flexible and elastic resin material such as silicone rubber or natural rubber.

固定手段5は、図2に示すように被検者2の体幹部3の前面部及び左右側面部を履覆可能に形成された前面側固定部材11と、被検者2の体幹部3の背面部に対応して形成された背面側固定部材12と、前面側固定部材11と背面側固定部材12とを固定する接続手段13とを備えている。   As shown in FIG. 2, the fixing means 5 includes a front-side fixing member 11 formed so as to be able to cover the front and left and right side portions of the trunk 3 of the subject 2, and the trunk 3 of the subject 2. A back side fixing member 12 formed corresponding to the back side, and a connecting means 13 for fixing the front side fixing member 11 and the back side fixing member 12 are provided.

ここで、図2に示すように前面側固定部材11は、硬質樹脂材料を被検者2の体幹部3、特に胸郭及び左右体側部の形状に合わせてドーム形状に形成したものであり、また背面側固定部材12は、被検者2を仰向け姿勢で載置可能な寝台である。そして、接続手段13は、前面側固定部材11の左右側端に設けられ被検者2の身長方向と平行に形成された略L型フランジ形状の前面側固定部14と、背面側固定部材12の左右側端に設けられた背面側固定部15とにおいて、前面側固定部14に形成された円形状の貫通部16と、背面側固定部15に形成され、前記貫通部16に挿通可能な突起部17と、前記貫通部16に突起部17を挿通させた状態で前記突起部17に係合可能な略C型の係合受部18を備え、前面側固定部14と突起部17とを固定可能とする係合手段19とを備えている。   Here, as shown in FIG. 2, the front side fixing member 11 is formed by forming a hard resin material into a dome shape in accordance with the shape of the trunk 3 of the subject 2, particularly the rib cage and left and right body side parts, The back-side fixing member 12 is a bed on which the subject 2 can be placed in a supine posture. The connecting means 13 is provided at the left and right ends of the front side fixing member 11 and is formed in a substantially L-shaped flange-like front side fixing part 14 formed in parallel with the height direction of the subject 2, and the rear side fixing member 12. The rear side fixing portion 15 provided at the left and right ends of the circular shape has a circular penetrating portion 16 formed in the front side fixing portion 14 and a back side fixing portion 15 which can be inserted into the penetrating portion 16. A projection portion 17, and a substantially C-shaped engagement receiving portion 18 that can be engaged with the projection portion 17 in a state where the projection portion 17 is inserted through the penetrating portion 16. Engaging means 19 that can be fixed.

閉鎖システム内圧緩衝器としての風船7は、シリコンゴム、天然ゴム等の弾性部材からなる膨張収縮自在な袋状体であり、袋状体の一方に開口部を備え、この開口部とチューブ部材6の他端20とは接続可能に設けられる。ここで、閉鎖システム内圧緩衝器としては、前記風船7のほかに、中空で膨張伸縮自在な蛇腹構造体であってもよく、その他にも膨張伸縮自在な中空体で、内部に一定量の気体Gを取り込むことが可能であるとともに、その中空体の内部と外部を連通し、チューブ部材6に接続可能な少なくとも一つの開口部を備えたものであれば、特に限定されるものではない。   The balloon 7 as a closed system internal pressure buffer is a bag-like body that is made of an elastic member such as silicon rubber or natural rubber, and is expandable / shrinkable. An opening is provided on one side of the bag-like body. The other end 20 is provided to be connectable. Here, as the internal pressure buffer of the closed system, in addition to the balloon 7, a hollow bellows structure that can be expanded and contracted may be used. There is no particular limitation as long as G can be taken in, and at least one opening that can communicate with the inside and outside of the hollow body and be connected to the tube member 6 is provided.

ここで、チューブ部材6の一端10又は他端20に、互いに膨張収縮自在なエアバッグ4及び風船7を接続し、エアバッグ4内部及び風船7内部に充填された流体としての気体G、例えば空気又はヘリウムガス(He)等をチューブ部材6を介して流通可能としており、これらエアバッグ4、チューブ部材6、そして、風船7によって閉鎖システム21を構成している。   Here, an air bag 4 and a balloon 7 that can be inflated and contracted with each other are connected to one end 10 or the other end 20 of the tube member 6, and a gas G as a fluid filled in the air bag 4 and the inside of the balloon 7, for example, air Alternatively, helium gas (He) or the like can be circulated through the tube member 6, and the air bag 4, the tube member 6, and the balloon 7 constitute the closing system 21.

流量計8は、チューブ部材6内における、エアバッグ4側から風船7側への一方向の流れと、風船7側からエアバッグ4側への他方向への流れの双方向の気体Gの流量を計測可能とする、双方向での流量計測が可能なものであり、リアルタイムでの計測値を表示可能な表示部22を備えている。   The flow meter 8 has a bidirectional flow rate of the gas G in the tube member 6 in one direction from the airbag 4 side to the balloon 7 side and in the other direction from the balloon 7 side to the airbag 4 side. It is possible to measure the flow rate in both directions, and includes a display unit 22 that can display the measurement values in real time.

演算手段としての端末装置9には、流量計8より送られてくる測定値に基づき体幹部3、特に胸郭の体積変化を判定する判定手段23を備えている。また、端末装置9には、後述する図6に示すような時間経過に伴う流体流量の変化を表示可能とする表示手段としてのモニター装置24を備えている。ここで、端末装置9としてPC(パーソナルコンピュータ)を使用するが、演算機能を備えた電子計算機の類であれば特に限定されるものではない。   The terminal device 9 as a calculation unit includes a determination unit 23 that determines a volume change of the trunk 3, particularly the thorax, based on the measurement value sent from the flow meter 8. Further, the terminal device 9 is provided with a monitor device 24 as a display means capable of displaying a change in fluid flow rate with time as shown in FIG. Here, a PC (personal computer) is used as the terminal device 9, but it is not particularly limited as long as it is a kind of electronic computer having a calculation function.

続いて、上記構成の作用効果について説明する。   Then, the effect of the said structure is demonstrated.

最初に呼吸換気量インジケータ1の使用方法について説明すると、背面側固定部材12上面に仰向けに載置された被検者2の体幹部3、特に胸部全体が被覆されるようにエアバッグ4を載置する。   First, a method of using the respiratory ventilation indicator 1 will be described. The airbag 4 is mounted so as to cover the trunk 3 of the subject 2 placed on the back surface of the back-side fixing member 12, particularly the entire chest. Put.

次に、被検者2の体幹部3及びエアバッグ4の上方から前面側固定部材11を、被検者2の体幹部3に被せ、係合手段19によって前面側固定部材11と背面側固定部材12とを固定して、体幹部3にエアバッグ4を押圧固定する。ここで、前面側固定部材11は、予め被検者2の体幹部3、特に胸部の形状に合わせて形成されており、前面側固定部材11と背面側固定部材12とが固定された状態では、被検者2と前面側固定部材11及び背面側固定部材12との隙間は殆ど設けられず、それに伴い、被検者2の体幹部3に押圧固定されたエアバッグ4も常時圧縮状態となっており、エアバッグ4内部の気体Gの体積も限られたものとなっている。ここで、前面側固定部14を体幹部3の胸部の形状に合わせて形成し、被検者2と前面側固定部14との間に配設されたエアバッグ4を圧縮状態としたこと、エアバッグ4内部で流れる気体Gの流量を制限し、エアバッグ4に接続された流量計8によって計測される気体Gの流量の測定範囲を制限することで、呼吸に伴う被検者2の体幹部3、特に胸郭の体積変化を精度良く測定することが可能である。   Next, the front side fixing member 11 is placed on the trunk 3 of the subject 2 from above the trunk 3 and the airbag 4 of the subject 2, and the front side fixing member 11 and the back side fixing are fixed by the engaging means 19. The member 12 is fixed, and the airbag 4 is pressed and fixed to the trunk 3. Here, the front side fixing member 11 is formed in advance in accordance with the shape of the trunk 3 of the subject 2, particularly the chest, and in a state where the front side fixing member 11 and the back side fixing member 12 are fixed. The gap between the subject 2 and the front-side fixing member 11 and the back-side fixing member 12 is hardly provided, and accordingly, the airbag 4 pressed and fixed to the trunk 3 of the subject 2 is always in a compressed state. Thus, the volume of the gas G inside the airbag 4 is also limited. Here, the front side fixing portion 14 is formed in accordance with the shape of the chest of the trunk 3 and the airbag 4 disposed between the subject 2 and the front side fixing portion 14 is in a compressed state. By limiting the flow rate of the gas G flowing inside the airbag 4 and limiting the measurement range of the flow rate of the gas G measured by the flow meter 8 connected to the airbag 4, the body of the subject 2 accompanying breathing It is possible to accurately measure the volume change of the trunk 3, particularly the rib cage.

また、前面側固定部材11を体幹部3の胸部の形状に合わせて形成し、被検者2の呼吸に伴う体幹部3の動きを規制し、前面側固定部材11の形状を被検者2の通常呼吸時の胸部の形状に合わせて形成した場合に、たとえば、測定時に被検者2の呼吸が深い場合、それに伴い大きく体動する体幹部3の動きを規制し、体幹部3の動きに比例するエアバッグ4の膨張収縮動作を安定させている。   Further, the front-side fixing member 11 is formed in accordance with the shape of the chest of the trunk 3, the movement of the trunk 3 due to the breathing of the subject 2 is restricted, and the shape of the front-side fixing member 11 is changed to the subject 2. For example, when the subject 2 is deeply breathing at the time of measurement, the movement of the trunk 3 is greatly restricted and the movement of the trunk 3 is controlled. The operation of inflating and contracting the airbag 4 proportional to the above is stabilized.

続いて、被検者2の体幹部3に装着された本実施例の呼吸換気量インジケータ1の使用方法について説明する。   Then, the usage method of the respiratory ventilation indicator 1 of a present Example with which the trunk 2 of the subject 2 was mounted | worn is demonstrated.

図1、図4及び図5に被検者2の呼吸に伴う、エアバッグ4及び風船7、並びに気体Gの動きを示す。ここで図1のエアバッグ4を通常状態とし、図4に図1の状態から被検者2が吸気を行った状態を示し、さらに図5には図4の状態から被検者2が呼気を行った状態を示しており、その後エアバッグ4は図1の状態へと戻るものとする。   1, 4 and 5 show the movement of the air bag 4 and the balloon 7 and the gas G accompanying the breathing of the subject 2. FIG. Here, the airbag 4 of FIG. 1 is in a normal state, FIG. 4 shows a state in which the subject 2 inhales from the state of FIG. 1, and FIG. 5 shows that the subject 2 exhales from the state of FIG. It is assumed that the airbag 4 is returned to the state shown in FIG.

そして、本実施例の呼吸換気量インジケータ1では、被検者2の呼吸に合わせて、変化する体幹部3、特に胸郭の体積変化に伴い、固定手段5によって被検者2の体幹部3に押圧固定されたエアバッグ4が膨張収縮する。このエアバッグ4の膨張収縮に伴う体積の変化によって、チューブ部材6内部を流れる気体Gの流量が変化する。このチューブ部材6内部の気体Gの流量の変化を流量計8によって計測し、この流量計8の測定値を演算手段9に送り、流量計8の測定値に基づいて演算手段9の判定手段23が、体幹部3、特に胸郭の体積変化を計測する。   And in the respiratory ventilation indicator 1 of a present Example, the trunk | drum 3 which changes according to the respiration of the subject 2, especially the trunk 3 of the subject 2 by the fixing means 5 according to the volume change of the rib cage. The airbag 4 pressed and fixed expands and contracts. The flow rate of the gas G flowing through the inside of the tube member 6 is changed by the change in volume accompanying the expansion and contraction of the airbag 4. The change in the flow rate of the gas G inside the tube member 6 is measured by the flow meter 8, the measured value of the flow meter 8 is sent to the calculating means 9, and the determining means 23 of the calculating means 9 is based on the measured value of the flow meter 8. However, the volume change of the trunk 3, particularly the thorax, is measured.

具体的には、図1の標準状態から、図4に示すように被検者2の呼吸による体幹部3の体積の増大に伴い、体幹部3によって押圧され収縮したエアバッグ4内部の気体Gは、チューブ部材6の一端10へと押し出され、そのチューブ部材6の一端10よりチューブ部材6内部をエアバッグ4側から風船7側へと流量計8を通過しながら、チューブ部材6の他端20から風船7内部に取り込まれるものである。ここで風船7は、エアバッグ4内部から押し出された気体Gによって、風船7内部に気体Gが送り込まれ、風船7の体積は膨張状態となる。   Specifically, from the standard state of FIG. 1, as shown in FIG. 4, as the volume of the trunk 3 increases due to the breathing of the subject 2, the gas G inside the airbag 4 that is pressed and contracted by the trunk 3. Is pushed out to one end 10 of the tube member 6, and the other end of the tube member 6 is passed through the flow meter 8 from the one end 10 of the tube member 6 through the inside of the tube member 6 from the airbag 4 side to the balloon 7 side. 20 is taken into the balloon 7 from inside. Here, the gas G is sent into the balloon 7 by the gas G pushed out from the inside of the airbag 4, and the volume of the balloon 7 is in an inflated state.

その後、図5に示すように被検者2の呼吸による体幹部3の体積の減少に伴い、図4において行われていた体幹部3による押圧が解除されたエアバッグ4では、前述の膨張状態の風船7が弾性復元力によって収縮すると、前述の収縮したエアバッグ4内部から押し出され風船7内部に取り込まれた気体Gが、チューブ部材6の他端20からチューブ部材6内部を風船7側からエアバッグ4側へと流量計8を通過しながら、チューブ部材6の一端10からエアバッグ4内部に取り込まれる。ここで、エアバッグ4は、風船7の収縮によって押し出された気体Gによって、エアバッグ4内部に気体Gが送り込まれ、図1に示す標準状態の体積まで膨張する。   Thereafter, as shown in FIG. 5, in accordance with the decrease in the volume of the trunk 3 due to the breathing of the subject 2, the airbag 4 in which the pressing by the trunk 3 performed in FIG. When the balloon 7 is contracted by the elastic restoring force, the gas G pushed out of the contracted airbag 4 and taken into the balloon 7 passes from the other end 20 of the tube member 6 to the inside of the tube member 6 from the balloon 7 side. While passing through the flow meter 8 toward the airbag 4, the air is taken into the airbag 4 from one end 10 of the tube member 6. Here, the gas G is sent into the airbag 4 by the gas G pushed out by the contraction of the balloon 7, and the airbag 4 is expanded to the standard volume shown in FIG.

このように本実施例の呼吸換気量インジケータ1では、図1→図4→図1→図5→図1へと連続して行われる被検者2の呼吸による胸郭の体積変化を、被検者2の体幹部3側に固定されたエアバッグ4を介して、閉塞システム内部を流通する気体Gの運動に変換する。そして気体Gの運動に伴う気体Gの流量を流量計8によって計測して、その流量計8の計測値から演算手段9の判定手段23によって胸郭の体積変化を判定するものである。このように一次において胸郭の体積変化を、エアバッグ4を介して気体Gの運動に変換し、二次においてその気体Gの運動から胸郭の体積変化を判定することで、直接計測することが困難である被検者2の胸郭の体積変化を精度良く計測することが可能となる。さらにこの呼吸換気量インジケータ1による胸郭の体積変化の判定結果を用いることで、呼吸による体幹部3の腫瘍24の動きを精度良く計測することが可能となる。   As described above, in the respiratory ventilation indicator 1 of the present embodiment, the change in the thorax volume due to the breathing of the subject 2 performed continuously from FIG. 1 to FIG. 4 to FIG. 1 to FIG. It converts into the motion of the gas G which distribute | circulates the inside of an obstruction | occlusion system via the airbag 4 fixed to the trunk 3 side of the person 2. The flow rate of the gas G accompanying the movement of the gas G is measured by the flow meter 8, and the volume change of the rib cage is determined by the determination unit 23 of the calculation unit 9 from the measured value of the flow meter 8. As described above, it is difficult to directly measure the volume change of the rib cage in the primary by converting the volume change of the rib cage into the movement of the gas G through the airbag 4 and determining the volume change of the rib cage from the movement of the gas G in the secondary. It is possible to accurately measure the change in the volume of the thorax of the subject 2. Furthermore, by using the determination result of the volume change of the rib cage by the respiratory ventilation volume indicator 1, it is possible to accurately measure the movement of the tumor 24 of the trunk 3 due to respiration.

ここで、図6に時間経過に伴う流体流量の変化をグラフで示している。このグラフでは、縦軸に流量計22の測定値に基づく流体流量を示し、横軸に時間を示している。グラフの折れ線がAの値にある状態では、図1に示す場合の流体Gの流量に対応し、またグラフの折れ線がBの範囲内にある状態では、図4に示す場合の流体Gの流量に対応し、さらにグラフの折れ線がCの範囲内にある状態では、図5に示す場合の流体Gの流量に対応している。   Here, FIG. 6 is a graph showing changes in the fluid flow rate with time. In this graph, the vertical axis represents the fluid flow rate based on the measured value of the flow meter 22, and the horizontal axis represents time. When the line of the graph is at the value A, it corresponds to the flow rate of the fluid G as shown in FIG. 1, and when the line of the graph is within the range of B, the flow rate of the fluid G as shown in FIG. Further, in the state where the broken line of the graph is within the range of C, it corresponds to the flow rate of the fluid G in the case shown in FIG.

図1、図4及び図5に示すように、体幹部当接部4Aの変位量は流体Gの流量と対応関係にあるので、図6に示す流体Gの流量の測定結果を用いることにより、時間経過に伴う体幹部当接部4Aの変位量を測定することが可能となり、つまりは体幹部3、特に胸郭の体積変化量を測定することが可能となる。さらに図1、図4及び図5に示すように呼吸による体幹部3の動きに伴って動く腫瘍24の動きを予想又は確定することが可能となり、体幹部定位放射線治療のように、呼吸による体幹部3、特に胸郭の腫瘍24の動きに対応して腫瘍24位置を確定することを必要とする治療において、放射線ビームを腫瘍24位置に精度良く照射することが可能となる。   As shown in FIGS. 1, 4 and 5, the displacement amount of the trunk contact portion 4A has a corresponding relationship with the flow rate of the fluid G. Therefore, by using the measurement result of the flow rate of the fluid G shown in FIG. It is possible to measure the amount of displacement of the trunk contact portion 4A over time, that is, it is possible to measure the volume change of the trunk 3, particularly the thorax. Further, as shown in FIGS. 1, 4 and 5, it is possible to predict or determine the movement of the tumor 24 that moves in accordance with the movement of the trunk 3 due to respiration. In a treatment that needs to determine the position of the tumor 24 corresponding to the movement of the tumor 3, particularly the tumor 24 in the thorax, it is possible to accurately irradiate the tumor 24 position with the radiation beam.

さらにチューブ部材6の両端に、互いに膨張収縮自在なエアバッグ4及び風船7を接続し、エアバッグ4内部及び風船7内部の気体Gをチューブ部材6を介して流通可能にする閉鎖システム21を構成としたことにより、図4においてエアバッグ4内部から押し出され、チューブ部材6の一端10から他端20へと流れた気体Gが、チューブ部材6内部で逆流を起こしてチューブ部材6の内圧が上昇することを防ぐとともに、同様に図5において、風船7内部から押し出され、チューブ部材6の他端20から一端10へと流れた気体Gが、チューブ部材6内部で逆流を起こしてチューブ部材6の内圧が上昇することを防ぎ、チューブ部材6内部における気体Gの流れを計測している流量計8の測定値に影響又は誤差が生じることを防止している。このように体幹部3、特に胸郭の体積変化の気体Gの運動への変換を正確に行い、さらにこの気体Gの運動に伴う流量の計測を正確に行うことで、体幹部3、特に胸郭の体積変化を正確に計測することが可能となる。   Further, the air bag 4 and the balloon 7 that can be inflated and contracted with each other are connected to both ends of the tube member 6, and the closing system 21 that allows the gas G inside the air bag 4 and the balloon 7 to flow through the tube member 6 is configured. As a result, the gas G pushed out from the inside of the airbag 4 in FIG. 4 and flowing from one end 10 to the other end 20 of the tube member 6 causes a back flow inside the tube member 6 and the internal pressure of the tube member 6 increases. Similarly, in FIG. 5, the gas G pushed out from the inside of the balloon 7 and flowing from the other end 20 to the one end 10 of the tube member 6 causes a back flow inside the tube member 6 to cause the tube member 6 to The internal pressure is prevented from increasing, and the measurement value of the flow meter 8 that measures the flow of the gas G inside the tube member 6 is prevented from affecting or causing an error. . Thus, by accurately converting the volume change of the trunk 3, especially the rib cage into the movement of the gas G, and by accurately measuring the flow rate accompanying the movement of the gas G, the trunk 3, particularly the rib cage It becomes possible to accurately measure the volume change.

本実施例の呼吸換気量インジケータ1では、体幹部3、特に胸部に面接触可能な体幹部当接部4Aの変位量を、流量計8からの計測値を介して計測し、この体幹部当接部4Aの変位量から被検者2の体幹部3、特に胸郭の体積変化を精度良く計測するものであり、このように体幹部当接部4Aを被検者2の体幹部3、特に胸部に面接触可能なものとすることで、体幹部測定部4Aによる面の変位量検出を可能として、エアバッグ4の体幹部当接部4Aと体幹部3との接触状態の変動に伴う測定データのばらつきを抑制し、この呼吸換気量インジケータ1による測定データの再現性を向上させる。   In the respiratory ventilation indicator 1 of the present embodiment, the amount of displacement of the trunk contact portion 4A that can be brought into surface contact with the trunk 3, particularly the chest, is measured via a measured value from the flow meter 8, and this trunk contact The volume change of the trunk 3 of the subject 2, particularly the thorax, is accurately measured from the displacement amount of the contact portion 4A. Thus, the trunk contact portion 4A is used as the trunk 3 of the subject 2, particularly By making the surface contactable with the chest, it is possible to detect the amount of displacement of the surface by the trunk measurement unit 4A, and the measurement according to the change in the contact state between the trunk contact part 4A and the trunk 3 of the airbag 4 The variation in data is suppressed, and the reproducibility of measurement data by the respiratory ventilation indicator 1 is improved.

また本実施例の呼吸換気量インジケータ1では、体幹部当接部4Aを介して、被検者2の呼吸に伴う体幹部3、特に胸郭の体積変化を計測するものであり、この呼吸換気量インジケータ1を使用する前に被検者2に自己呼吸停止の教育や呼吸停止練習を行わせることを不要とし、被検者2に恣意的な呼吸を強いる必要がなく、自然な呼吸下で計測を行うことが可能となり、被検者2の負担を抑制するとともに呼吸換気量インジケータ1を用いた計測の簡略化を図ることができる。   Further, in the respiratory ventilation indicator 1 of the present embodiment, the volume change of the trunk 3, particularly the thorax accompanying breathing of the subject 2 is measured via the trunk contact portion 4 </ b> A. Before using the indicator 1, it is not necessary for the subject 2 to educate self-breathing and practice breathing, and it is not necessary to force the subject 2 to take arbitrary breathing. Thus, the burden on the subject 2 can be suppressed and the measurement using the respiratory ventilation indicator 1 can be simplified.

さらに本実施例の呼吸換気量インジケータ1では、ポリウレタン、シリコンゴム、ゴム、塩化ビニール等の可撓性樹脂製からなる膨張収縮自在な袋状体からなるエアバッグ4や、硬質樹脂材料からなる前面側固定部材11のように、図1に示すような被検者2の体幹部3、特に胸部に近い側の構成に金属材料を使用せずに合成樹脂材料のような非金属材料を使用することにより、固定手段5によって被検者2の体幹部3にエアバッグ4を固定する場合、この呼吸換気量インジケータ1を使用した状態での放射線治療時においても、被検者2の体幹部3周囲に装着される前面側固定部材11を非金属材料から形成することによって、体幹部3、特に胸部の腫瘍24位置に向けて照射される放射線の透過を妨げることが抑制されるので、呼吸換気量インジケータ1の使用、特に固定手段5の前面側固定部材11を被検者2の体幹部3周囲に装着したままでの放射線治療が可能である。   Furthermore, in the respiratory ventilation indicator 1 of the present embodiment, the airbag 4 made of an inflatable / shrinkable bag made of a flexible resin such as polyurethane, silicone rubber, rubber, vinyl chloride, or the front made of a hard resin material. A non-metallic material such as a synthetic resin material is used for the configuration of the trunk 3 of the subject 2 as shown in FIG. Thus, when the airbag 4 is fixed to the trunk 3 of the subject 2 by the fixing means 5, the trunk 3 of the subject 2 even during the radiation therapy using the respiratory ventilation indicator 1. By forming the front-side fixing member 11 attached to the surroundings from a non-metallic material, it is possible to suppress the transmission of radiation irradiated toward the trunk 24, particularly the position of the tumor 24 in the chest, and therefore breathing ventilation Using Indicator 1, is particularly a front-side fixing member 11 of the fixing means 5 is radiation therapy while wearing the trunk 3 around the subject 2.

また本実施例の呼吸換気量インジケータ1では、被検者2に対して固定手段5によって圧縮状態とされた薄いエアバッグ4が体幹部3、特に胸部の上に配置される構成として、エアバッグ4を体幹部3、特に胸部と固定手段5との間に挟みこむ位置に置き使用することを可能としたことで、呼吸換気量インジケータ1を用いて放射線治療や各種撮影を行う場合に、呼吸換気量インジケータの構成が放射線治療機器又は撮影機器から体幹部3、特に胸部の腫瘍24位置への放射線照射方向又は撮影方向の遮蔽物となるような邪魔にならず、被検者2の体幹部3、特に胸部の腫瘍24位置に対して自由な方向からの放射線照射又は撮影が可能となり、固定手段5を使用した体幹部定位放射線治療にも使用可能とし、放射線治療又は各種撮影の自由度が向上する。   Further, in the respiratory ventilation indicator 1 of the present embodiment, a thin airbag 4 that is compressed by the fixing means 5 with respect to the subject 2 is disposed on the trunk 3, particularly the chest, as an airbag. 4 can be used by placing it at the position where it is sandwiched between the trunk 3, particularly the chest and the fixing means 5, so that when the respiratory ventilation indicator 1 is used for radiotherapy and various imaging, The structure of the ventilation amount indicator does not interfere with the radiation irradiation direction or the imaging direction from the radiation therapy device or imaging device to the trunk 3, particularly the tumor 24 position on the chest, and the trunk of the subject 2 3. Radiation or imaging from any direction is possible with respect to the position of the tumor in the chest, in particular, and it can also be used for stereotactic body radiotherapy using the fixing means 5 and is free of radiotherapy or various imaging. There is improved.

さらに本実施例の呼吸換気量インジケータ1では、エアバッグ4、風船7、及び、チューブ部材6からなる閉鎖システム21内を流通する流体としての気体Gの流量を流量計8により計測する単純な閉鎖システム21だけで構成される装置を可能とし、放射線治療時に呼吸換気量インジケータ1の装置が邪魔にならず、呼吸換気量インジケータ1に関する被検者への装着作業、計測作業、又はメンテナンス作業等の各種作業を誰でも簡単に取り扱えものとし、さらに器械的故障の心配を無くし、その上、器械部分の動作の優劣に起因されるような測定データのばらつきを無くし、この呼吸換気量インジケータ1による測定データの再現性を改善させる。   Furthermore, in the respiratory ventilation indicator 1 of the present embodiment, a simple closure in which the flow meter 8 measures the flow rate of the gas G as a fluid flowing through the closure system 21 including the airbag 4, the balloon 7, and the tube member 6. A device composed only of the system 21 is possible, and the device of the respiratory ventilation indicator 1 does not get in the way at the time of radiation therapy, and the work of attaching the subject to the respiratory ventilation indicator 1, the measurement work, the maintenance work, etc. Anyone can easily handle various tasks, and there is no fear of mechanical failure. Moreover, the measurement data is not dispersed due to the superiority or inferiority of the operation of the instrument part. Improve data reproducibility.

また本実施例の呼吸換気量インジケータ1の構成を、エアバッグ、風船7、及び、チューブ部材6からなる閉鎖システム21と、エアバッグ4を被検者2の体幹部3に固定する固定手段5と、チューブ部材6に配設された流量計8と、この流量計8に接続され表示手段24を備えた演算手段9とすることで、呼吸換気量インジケータ1の構成から器械部分のような複雑な構成を排除して誰にでも取り扱うことのできる構成とし、呼吸換気量インジケータ1に関する被検者2への装着作業、計測作業、又はメンテナンス作業等の各種作業を簡単なものとし取り扱い性を向上させる。   Moreover, the structure of the respiratory ventilation indicator 1 of a present Example is the fixing means 5 which fixes the airbag 4 to the trunk | drum 3 of the subject 2 with the closure system 21 which consists of an airbag, the balloon 7, and the tube member 6. FIG. And the flow meter 8 disposed in the tube member 6 and the calculation means 9 connected to the flow meter 8 and having the display means 24, the structure of the respiratory ventilation indicator 1 is complicated as in the instrument part. The structure that can be handled by anyone with a simple structure is eliminated, and various tasks such as attachment work, measurement work, and maintenance work on the subject 2 relating to the respiratory ventilation indicator 1 are simplified to improve handling. Let

本実施例は本発明の請求項1に対応しており、可撓性を有する体幹部当接部4Aを備え流体としての気体Gを充填したバッグとしてのエアバッグ4の流体出入口としてのチューブ部材6に流量計8を介して閉鎖システム内圧緩衝器としての風船7を接続し、流量計8に表示手段24を備えている。   This embodiment corresponds to claim 1 of the present invention, and is a tube member as a fluid inlet / outlet of an airbag 4 as a bag having a trunk contact portion 4A having flexibility and filled with a gas G as a fluid. 6 is connected to a balloon 7 as a closed system internal pressure buffer via a flow meter 8, and the flow meter 8 is provided with display means 24.

この場合、直接計測することが困難である被検者の体幹部3、特に胸郭の体積変化を精度良く計測することが可能となる。また、点ではなく被験者の体幹部3、特に胸部に当接する体幹部測定部4Aによる面での変位量検出を可能としたことで、エアバッグ4の体幹部当接部4Aと体幹部3との接触状態の変動に伴う測定データのばらつきを抑制し、この呼吸換気量インジケータ1による計測の再現性を改善させる。さらに被検者2に恣意的な呼吸を強いる必要がなく、自然な呼吸下で計測を行うことが可能となり、被検者2の負担を抑制するとともに呼吸換気量インジケータ1を用いた計測の簡略化を図ることができる。また、被検者2の体幹部3、特に胸部の腫瘍24位置に対して自由な方向からの放射線照射又は撮影が可能となり、放射線治療又は各種撮影の自由度が向上する。さらに、呼吸換気量インジケータ1から可動する器械部分を無くすことにより、単純な閉鎖空間システムとしての閉塞システム21だけで構成される呼吸換気量インジケータ1を可能とし、放射線治療時に呼吸換気量インジケータ1の装置が邪魔にならず、呼吸換気量インジケータ1に関する被検者への装着作業、計測作業、又はメンテナンス作業等の各種作業を誰でも簡単に取り扱えものとし、さらに器械的故障の心配を無くし、その上、器械部分の動作の優劣に起因されるような測定データのばらつきを無くし、この呼吸換気量インジケータ1による測定データの再現性を改善させる。   In this case, it is possible to accurately measure the volume change of the trunk 3 of the subject, particularly the thorax, which is difficult to directly measure. In addition, since it is possible to detect the amount of displacement on the surface by the trunk measurement unit 4A that contacts the subject's trunk 3, particularly the chest, not the point, the trunk contact part 4A and the trunk 3 of the airbag 4 The variation of the measurement data accompanying the change in the contact state of the patient is suppressed, and the reproducibility of the measurement by the respiratory ventilation indicator 1 is improved. Furthermore, it is not necessary to force the subject 2 to breathe arbitrarily, and measurement can be performed under natural breathing, which reduces the burden on the subject 2 and simplifies the measurement using the respiratory ventilation indicator 1. Can be achieved. In addition, radiation or imaging can be performed from any direction with respect to the trunk 3 of the subject 2, particularly the position of the tumor 24 in the chest, and the degree of freedom in radiotherapy or various imaging is improved. Furthermore, by eliminating the movable instrument part from the respiratory ventilation indicator 1, the respiratory ventilation indicator 1 composed only of the occlusion system 21 as a simple enclosed space system is made possible. The device does not get in the way, and anyone can easily handle various tasks such as attachment work, measurement work, maintenance work, etc. to the subject regarding the respiratory ventilation indicator 1, and further, there is no worry of mechanical failure, In addition, the variation of the measurement data caused by the superiority or inferiority of the operation of the instrument part is eliminated, and the reproducibility of the measurement data by the respiratory ventilation indicator 1 is improved.

また、本実施例では請求項2に対応しており、呼吸換気量インジケータ1において、流量計8の流量に応じて体幹部当接部4Aの変位量を演算手段としての端末装置9を介して算出しており、被検者の体幹部3、特に胸郭の体積変化をさらに精度良く計測することが可能となる。   Further, this embodiment corresponds to claim 2, and in the respiratory ventilation indicator 1, the displacement amount of the trunk contact portion 4 </ b> A is calculated via the terminal device 9 as a calculation means according to the flow rate of the flow meter 8. The volume change of the trunk 3 of the subject, particularly the rib cage, can be measured with higher accuracy.

また、実施例上の効果として、被検者2の体幹部3の動きを気体Gの流れに変換可能な変換手段としてのエアバッグ4と、エアバッグ4を体幹部3に押圧固定可能な固定手段5と、エアバッグ4と気体Gが流通可能に接続される閉鎖システム緩衝器としての風船7と、エアバッグ4と風船7の間に配設され、気体Gの流量を計測する流量計測手段としての流量計8と、流量計8の計測結果に基づいて体幹部3の体積変化を判定する判定手段23を有する演算手段9とを備えている。   Moreover, as an effect on the embodiment, an airbag 4 as a converting means capable of converting the movement of the trunk 3 of the subject 2 into the flow of the gas G, and fixing capable of pressing and fixing the airbag 4 to the trunk 3 Means 5, a balloon 7 as a closed system shock absorber connected to the air bag 4 and the gas G, and a flow rate measuring means disposed between the air bag 4 and the balloon 7 to measure the flow rate of the gas G And a calculation unit 9 having a determination unit 23 for determining a volume change of the trunk 3 based on a measurement result of the flow meter 8.

この場合、一次において被検者2の体幹部3、特に胸郭の体積変化を、変換手段を介して気体Gの運動に変換し、二次においてその気体Gの運動から胸郭の体積変化を判定することで、直接計測することが困難である被検者2の体幹部3、胸郭の体積変化を精度良く計測することが可能となる。   In this case, the volume change of the trunk 3 of the subject 2, particularly the thorax, is first converted into the movement of the gas G through the converting means, and the volume change of the rib cage is determined from the movement of the gas G in the second order. This makes it possible to accurately measure volume changes in the trunk 3 and the thorax of the subject 2 that are difficult to directly measure.

また、前記閉鎖システム緩衝器を膨張収縮自在な袋状体である風船7としたことで、閉塞システム緩衝器の構成を簡単なものとすることで、呼吸換気量インジケータ1の生産コストやメンテナンス性を向上させることが可能となる。   In addition, since the closure system buffer is a balloon 7 which is a bag-like body that can be expanded and contracted, the configuration of the closure system buffer is simplified, so that the production cost and maintainability of the respiratory ventilation indicator 1 are improved. Can be improved.

尚、本発明は上記実施例に記載の内容に限定されず、適宜変更可能である。例えば、流体は気体G以外にも液体であっても構わないものとする。また、流量計22に替えて流体圧力計としても構わないものとする。   In addition, this invention is not limited to the content as described in the said Example, It can change suitably. For example, the fluid may be a liquid other than the gas G. In addition, a fluid pressure gauge may be used instead of the flow meter 22.

放射線治療装置やCT(コンピュータ断層)装置で治療照射や撮像を行う場合のみならず、患者の呼吸に伴う体動量の検出を行い、体動に同期して治療照射や撮像を行う、所謂呼吸同期動作を必要とする各種治療や検査等に利用することが可能である。   So-called respiratory synchronization, in which not only treatment irradiation and imaging are performed with a radiotherapy apparatus or CT (computer tomography) apparatus, but also the amount of body movement associated with the patient's breathing is detected and treatment irradiation and imaging are performed in synchronization with the body movement. It can be used for various treatments and examinations that require movement.

本発明の一実施例を示す呼吸換気量インジケータの構成を示す概略図である。It is the schematic which shows the structure of the respiratory ventilation indicator which shows one Example of this invention. 同上、呼吸換気量インジケータの要部の斜視図である。It is a perspective view of the principal part of a respiratory ventilation indicator same as the above. 同上、流量計付近を示す斜視図である。It is a perspective view which shows the flowmeter vicinity as same as the above. 同上、図1において被検者が吸気を行った状態を示す概略図である。FIG. 2 is a schematic diagram showing a state where the subject inhaled in FIG. 同上、図4において被検者が呼気を行った状態を示す概略図である。FIG. 5 is a schematic diagram showing a state in which the subject exhales in FIG. 4. 同上、時間経過に伴う流体の流量を表すグラフである。It is a graph showing the flow volume of the fluid with time passage same as the above.

符号の説明Explanation of symbols

1 呼吸換気量インジケータ
4 エアバッグ(バッグ)
4A 体幹部当接部
6 チューブ部材(流体出入口)
7 風船(閉鎖システム緩衝器)
8 流量計
9 端末装置(演算手段)
24 表示手段
G 気体(流体)
1 Respiratory ventilation indicator 4 Airbag (bag)
4A Trunk contact part 6 Tube member (fluid port)
7 Balloon (closed system shock absorber)
8 Flow meter 9 Terminal device (calculation means)
24 Display means G Gas (fluid)

Claims (2)

可撓性を有する体幹部当接部を備え流体を充填したバッグの流体出入口に流量計又は流体圧力計を介して閉鎖システム内圧緩衝器を接続し、前記流量計又は流体圧力計に表示手段を備えたことを特徴とする呼吸換気量インジケータ。 A closed system internal pressure buffer is connected via a flow meter or a fluid pressure gauge to a fluid inlet / outlet of a bag having a trunk contact portion having flexibility and filled with fluid, and a display means is connected to the flow meter or the fluid pressure gauge. A respiratory ventilation indicator characterized by comprising. 請求項1記載の前記呼吸換気量インジケータにおいて、
前記流量計の流量又は前記流体圧力計の圧力に応じて前記体幹部当接部の変位量を演算手段を介して算出することを特徴とする呼吸換気変位量の測定方法。
The respiratory ventilation indicator of claim 1,
A method for measuring a respiratory ventilation displacement amount, wherein a displacement amount of the trunk contact portion is calculated through a calculation means in accordance with a flow rate of the flow meter or a pressure of the fluid pressure gauge.
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US9301710B2 (en) * 2012-06-01 2016-04-05 Xerox Corporation Processing a video for respiration rate estimation
CN103505789A (en) * 2012-06-18 2014-01-15 王家松 Multifunctional air flow sensor
CN104287734B (en) * 2014-08-27 2017-03-22 深圳市惟拓力医疗电子有限公司 Breathing continuous monitoring method and device
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Citations (3)

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JPS61249444A (en) * 1985-04-30 1986-11-06 フクダ電子株式会社 Air bag detector for detecting respiration
JPH0350119U (en) * 1989-09-25 1991-05-16
JPH0650828A (en) * 1992-07-31 1994-02-25 A M I:Kk Pressure receiver for measuring contact pressure

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Publication number Priority date Publication date Assignee Title
JPS61249444A (en) * 1985-04-30 1986-11-06 フクダ電子株式会社 Air bag detector for detecting respiration
JPH0350119U (en) * 1989-09-25 1991-05-16
JPH0650828A (en) * 1992-07-31 1994-02-25 A M I:Kk Pressure receiver for measuring contact pressure

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