JPS6243561Y2 - - Google Patents
Info
- Publication number
- JPS6243561Y2 JPS6243561Y2 JP1713181U JP1713181U JPS6243561Y2 JP S6243561 Y2 JPS6243561 Y2 JP S6243561Y2 JP 1713181 U JP1713181 U JP 1713181U JP 1713181 U JP1713181 U JP 1713181U JP S6243561 Y2 JPS6243561 Y2 JP S6243561Y2
- Authority
- JP
- Japan
- Prior art keywords
- blood
- circuit
- blood removal
- bag
- venous
- 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
- 239000008280 blood Substances 0.000 claims description 57
- 210000004369 blood Anatomy 0.000 claims description 57
- 238000012544 monitoring process Methods 0.000 claims description 18
- 230000004087 circulation Effects 0.000 claims description 11
- 238000012806 monitoring device Methods 0.000 claims description 4
- 230000017531 blood circulation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000008320 venous blood flow Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000036765 blood level Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Description
【考案の詳細な説明】
本考案は体外循環回路の脱血状態モニタ装置に
関するものである。[Detailed Description of the Invention] The present invention relates to a blood removal state monitoring device for an extracorporeal circulation circuit.
心疾患治療の為、開心術で体外循環を行なう
際、血液を静脈側から、落差又はポンプによる吸
引脱血により取り出し、人工肺で血液に酸素を供
給し、酸素加、温度調節された血液をローラーポ
ンプなどのポンプを用いて動脈側へ戻す操作が行
なわれる。 When extracorporeal circulation is performed in open-heart surgery to treat heart disease, blood is removed from the veins by suction or blood removal using a pump, oxygen is supplied to the blood using an artificial lung, and the blood is oxygenated and temperature-controlled. A pump such as a roller pump is used to return the blood to the artery.
循環血液流量の調節はポンプで行なつているが
何らかの偶発事故で静脈還流の停止又は還流量が
減少した場合、早期に発見し、安全に循環血液流
量を調節しなければならない。この為安全性を考
慮し、体外循環回路の静脈側又は動脈側に、循環
血液量の余裕を持たす為、貯血槽（リザーバー）
を組み込み、血液レベルを監視し、動静脈還流を
コントロールしている。 The circulating blood flow rate is controlled by a pump, but if venous return stops or the return flow rate decreases due to some accident, it must be detected early and the circulating blood flow rate must be adjusted safely. For this reason, in consideration of safety, a blood storage tank (reservoir) is installed on the venous or arterial side of the extracorporeal circulation circuit to ensure sufficient circulating blood volume.
built-in to monitor blood levels and control arteriovenous return.
又ポンプにより吸引脱血し、動脈側に貯血槽
（リザーバー）を組み込む場合、脱血異常の早期
の発見対処が必要な為、脱血ポンプより静脈側の
位置で脱血状態を監視する必要がある。 In addition, when blood is removed by suction using a pump and a blood reservoir is installed on the arterial side, it is necessary to detect and deal with blood removal abnormalities early, so it is necessary to monitor the blood removal status at a position on the venous side of the blood removal pump. be.
従来は第１図に示すように静脈血流路ａ中に小
型のフレキシブルな脱血状態監視用バツクｂ又は
ピローを組込み脱血圧で前記バツクｂをふくらま
せた状態で脱血用ポンプｃで吸引脱血を行ない前
記バツクｂのつぶれる状態を観察し静脈還流の異
常をモニターしていた。 Conventionally, as shown in Fig. 1, a small flexible bag b or pillow for monitoring the blood removal status is installed in the venous blood flow path a, and the bag b is inflated by blood pressure reduction, and then the blood removal pump c is used to suction and remove the blood. Blood was carried out and the state of collapse of the bag B was observed to monitor abnormalities in venous return.
しかし、監視用バツグｂが、静脈血流路ａ途中
に接続されている為、装置操作者ｄから、離れた
所に位置し、充分な監視ができなかつたし、ま
た、監視用バツグｂは、感知を良くする為、フレ
キシブルなものを使用しているがバツグｂの折
れ、つぶれが起こらぬよう、余裕をもつた回路の
設置が必要である。その為回路が長くなり、必要
以上の血液プライニングが必要となり又、手術者
ｅ側が繁雑となつていた。 However, since the monitoring bag b is connected to the middle of the venous blood flow path a, it is located far away from the device operator d, making it impossible to perform sufficient monitoring. In order to improve the sensing, a flexible material is used, but it is necessary to install a circuit with sufficient margin to prevent the bag from bending or crushing. As a result, the circuit becomes long, more blood lining is required than necessary, and the operation on the operator's side becomes complicated.
本考案は上記の事情に鑑みなされたものであつ
て、その目的とするところは静脈側回路をより早
く確実に監視できより安全な体外循環が施行でき
るし、手術者側が繁雑にならないし、血液の流れ
が円滑になり血液への損傷が防げるばかりか体外
循環回路中の血液充填量必要以上に増さずに施行
できる体外循環回路の脱血状態モニタ装置を提供
することにある。 The present invention was developed in view of the above circumstances, and its purpose is to enable faster and more reliable monitoring of the venous circuit, to perform safer extracorporeal circulation, to avoid complication on the part of the operator, and to reduce blood flow. To provide a blood removal state monitoring device for an extracorporeal circulation circuit which not only allows smooth flow of blood and prevents damage to the blood, but also allows blood removal to be performed without increasing the amount of blood filled in the extracorporeal circulation circuit more than necessary.
以下、本考案を第２図以下を参照して説明す
る。 Hereinafter, the present invention will be explained with reference to FIG. 2 and subsequent figures.
図面中１は患者側心臓部であり、２は手術者で
あり、７は人工心肺装置であり、８は装置操作者
である。 In the drawings, 1 is the patient's heart, 2 is the operator, 7 is the heart-lung machine, and 8 is the device operator.
人工肺装置７には脱血用ポンプ６が備えてあ
り、また人工肺装置７の側方即ち装置操作者８の
足元には台９を介して脱血状態監視用バツグ５が
載置してある。 The oxygenator 7 is equipped with a blood removal pump 6, and a blood removal status monitoring bag 5 is placed on the side of the oxygenator 7, that is, at the feet of the device operator 8 via a stand 9. be.
前記患者側心臓部１はフレキシブルなプラスチ
ツク性チユーブからなる静脈側回路３を介して脱
血用ポンプ６の吸込側に接続してある。静脈側回
路３の途中からバイパス回路４が分岐していて、
このバイパス回路４は脱血状態監視用バツグ５の
出入口に接続してある。 The patient's heart part 1 is connected to the suction side of a blood removal pump 6 via a venous circuit 3 made of a flexible plastic tube. A bypass circuit 4 branches off from the middle of the venous circuit 3,
This bypass circuit 4 is connected to the entrance/exit of the blood removal status monitoring bag 5.
一般に静脈側回路３からバイパス回路４を分岐
させる場合静脈側回路３にＴ字又はＹ字状のバイ
パス接続部を設けて行なわれる。脱血状態監視用
バツグ５の他端には三方コツク６′が設けてあ
る。 Generally, when branching the bypass circuit 4 from the venous circuit 3, a T-shaped or Y-shaped bypass connection is provided in the venous circuit 3. A three-way socket 6' is provided at the other end of the blood removal status monitoring bag 5.
回路全体に血液又は生理的電解質液を充満させ
て三方コツク６′を操作して空気を追い出し閉鎖
状態にする。 The entire circuit is filled with blood or physiological electrolyte solution and the three-way stop 6' is operated to expel air and close the circuit.
このとき、脱血状態監視用バツグ５はふくらん
だ状態にしておく。 At this time, the blood removal state monitoring bag 5 is kept in an inflated state.
次に患者側心臓部１の脱血用カテーテルと静脈
側回路３を接続し還流を行なう。還流開始後、脱
血状態監視用バツグ５のふくらみ状態は患者側心
臓部１の脱血流量と脱血ポンプ６の吸引血液量の
相互関係で左右される。脱血流量が吸引血液量を
上まわるかバランスを保つた状態では脱血状態監
視用バツグ５はふくらんだ状態を示し、吸引血液
量が脱血流量を上まわつた時、脱血状態監視用バ
ツグ５に陰圧がかかりこのバツグ５はつぶれ脱血
状態異常を示す。バイパス回路４を悪くしてもこ
の作用は同様におこる。 Next, the blood removal catheter in the patient's heart section 1 is connected to the venous circuit 3 to perform reflux. After the start of reflux, the swelling state of the blood removal status monitoring bag 5 depends on the relationship between the amount of blood removed from the patient's heart 1 and the amount of blood sucked by the blood removal pump 6. When the blood withdrawal volume exceeds the suction blood volume or the balance is maintained, the blood withdrawal status monitoring bag 5 shows a swollen state, and when the suction blood volume exceeds the withdrawal blood volume, the blood withdrawal status monitoring bag 5 Negative pressure is applied to bag 5, and this bag 5 collapses, indicating an abnormal state of blood removal. Even if the bypass circuit 4 is made worse, this effect will occur in the same way.
これを利用し、装置操作者８の近位置視下で脱
血状態が監視でき、より安全な体外循環を施行で
きる。 Utilizing this, the state of blood removal can be monitored under the close vision of the device operator 8, and safer extracorporeal circulation can be performed.
なお、脱血状態監視用バツグ５のふくらみ状態
をモニターする圧力センサーを付けることにより
自動警報システムも可能である。 An automatic alarm system can also be provided by attaching a pressure sensor to monitor the swelling state of the blood removal state monitoring bag 5.
本考案は以上詳述したようになり、患者側心臓
部１と脱血用ポンプ６の吸込側とを静脈側回路３
を介して接続し、静脈側回路３の途中からバイパ
ス回路４を分岐しこのバイパス回路４に脱血状態
監視用バツグ５を接続し、この脱血状態監視用バ
ツグ５を装置操作者８の視界に配置したから、脱
血状態をより早く確実に監視できより安全な体外
循環が施行できるし、手術者側が繁雑にならな
い。 The present invention has been described in detail above, and the patient side heart part 1 and the suction side of the blood removal pump 6 are connected to the venous side circuit 3.
A bypass circuit 4 is branched from the middle of the venous circuit 3, a blood removal status monitoring bag 5 is connected to this bypass circuit 4, and this blood removal status monitoring bag 5 is placed in the field of view of the device operator 8. Because it is placed in the center, the state of blood removal can be monitored more quickly and reliably, extracorporeal circulation can be performed safer, and the operator does not have to be complicated.
また、静脈側回路の血液流路途中に異形のバツ
グ状の容路を接続しないため、血液流は円滑にな
り血液への損傷が防げる。 Further, since no irregularly shaped bag-shaped channel is connected in the middle of the blood flow path of the venous circuit, the blood flow becomes smooth and damage to the blood can be prevented.
更には、バイパス回路４部からバツグ５まで生
理的電解質液を充填させることができ体外循環回
路中の血液充填量必要以上に増さずに施行でき
る。 Furthermore, the physiological electrolyte solution can be filled from the bypass circuit 4 to the bag 5, and the blood filling amount in the extracorporeal circulation circuit can be carried out without increasing more than necessary.
第１図は従来の体外循環回路の脱血状態モニタ
装置の構成説明図、第２図は本考案一実施例の構
成説明図、第３図は本考案の要部の構成説明図、
第４図は同縦断面図である。
１は患者側心臓部、３は静脈側回路、４はバイ
パス回路、５は脱血状態監視用バツグ。
FIG. 1 is an explanatory diagram of the configuration of a conventional blood removal state monitoring device for an extracorporeal circulation circuit, FIG. 2 is an explanatory diagram of the configuration of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of the configuration of the main parts of the present invention.
FIG. 4 is a longitudinal sectional view of the same. 1 is a heart part on the patient side, 3 is a venous side circuit, 4 is a bypass circuit, and 5 is a bag for monitoring the blood removal state.
Claims (1)
静脈側回路３を介して接続し、静脈側回路３の途
中からバイパス回路４を分岐し、このバイパス回
路４に脱血状態監視用バツグ５を接続し、この脱
血状態監視用バツク５を装置操作者８の視界内に
配置したことを特徴とする体外循環回路の脱血状
態モニタ装置。 The patient side heart part 1 and the suction side of the blood removal pump 6 are connected via the venous side circuit 3, and a bypass circuit 4 is branched from the middle of the venous side circuit 3, and this bypass circuit 4 is used for monitoring the blood removal state. A blood removal state monitoring device for an extracorporeal circulation circuit, characterized in that a blood removal state monitoring bag 5 is connected to the bag 5 and the blood removal state monitoring bag 5 is placed within the field of view of an operator 8 of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1713181U JPS6243561Y2 (en) | 1981-02-12 | 1981-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1713181U JPS6243561Y2 (en) | 1981-02-12 | 1981-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57130638U JPS57130638U (en) | 1982-08-14 |
| JPS6243561Y2 true JPS6243561Y2 (en) | 1987-11-12 |
Family
ID=29815104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1713181U Expired JPS6243561Y2 (en) | 1981-02-12 | 1981-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6243561Y2 (en) |
-
1981
- 1981-02-12 JP JP1713181U patent/JPS6243561Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57130638U (en) | 1982-08-14 |
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