JPH0910302A - Blood collecting device and blood processing device provided with this device - Google Patents

Blood collecting device and blood processing device provided with this device

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Publication number
JPH0910302A
JPH0910302A JP7158244A JP15824495A JPH0910302A JP H0910302 A JPH0910302 A JP H0910302A JP 7158244 A JP7158244 A JP 7158244A JP 15824495 A JP15824495 A JP 15824495A JP H0910302 A JPH0910302 A JP H0910302A
Authority
JP
Japan
Prior art keywords
blood
bypass line
collecting
inflow
flow
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
Application number
JP7158244A
Other languages
Japanese (ja)
Inventor
Takeshi Takahashi
剛 高橋
Kazuhiko Hagiwara
和彦 萩原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terumo Corp
Original Assignee
Terumo Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Terumo Corp filed Critical Terumo Corp
Priority to JP7158244A priority Critical patent/JPH0910302A/en
Publication of JPH0910302A publication Critical patent/JPH0910302A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To confirm direct blood condition, make operation easier, and reduce operation time, by providing a sampling port for collecting blood between a blood inflow part and a blood outflow part of a bypass line which is provided on a part of a blood circulating tube, and by utilizing this sampling port for collecting extracorporeal circulated blood. CONSTITUTION: A blood collecting device 1 is provided with a blood inflow part 21 and a blood outflow part 22 on its both end parts, and is composed of a bypass line 2 provided with a three-way clock 23 near the intermediate part and of a blood circulating tube 3, and a lever 231 of the three-way cock 23 is positioned normally in the position of securing blood in the bypass line 2. The lever 231 of the three-way cock 23 is operated so as to stop the downward flow of the bypass line 2, and a blood collecting port 232 and the upperstream part of the bypass line 2 are communicated with each other, thus fresh blood can be collected after a syringe or the like is directly fitted with the collecting port 232 of the three-way cock 23 in order to collect blood. Blood flow in the bypass line 2 is secured by returning the lever 231 again to the initial position after completing blood collection.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は体外循環中の血液の状態
を測定するために必要な新鮮血を容易に採血することを
可能とする採血装置およびこれを備えた血液処理装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blood collecting device capable of easily collecting fresh blood necessary for measuring the state of blood in the extracorporeal circulation, and a blood processing device equipped with the same.

【0002】[0002]

【従来の技術】従来、体外循環中の血液の赤血球数、白
血球数あるいは酸素分圧といった状態を測定するために
必要な新鮮血を採取するための装置には、体外循環回路
から分岐されて設けられている通常サンプリングライン
と呼ばれる導管を通じて採取する回路があるが、このよ
うな回路の場合、導管中の血液は滞留しているため循環
中の血液とはその状態が異なり新鮮血を得る場合導管内
の滞留している血液を一度排出してから採血しなければ
ならず、繁雑な操作が必要であった。この際、滞留して
いる血液を回路外に排出する場合には血液の廃棄場所
が、あるいは採血を数回繰り返した場合にはトータルで
の失血量が問題となる。一方滞留している血液を回路内
に押し戻す場合には滞留していたことに起因するマイク
ロアグリゲートの発生、混入も考えられ好ましくない。
2. Description of the Related Art Conventionally, an apparatus for collecting fresh blood necessary for measuring the number of red blood cells, the number of white blood cells, or the oxygen partial pressure of blood in the extracorporeal circulation is provided so as to be branched from the extracorporeal circulation circuit. There is a circuit called a sampling line that is usually called a sampling line, but in such a circuit, the blood in the conduit is in a different state from the circulating blood so that fresh blood can be obtained. It was necessary to drain the blood remaining in the inside once before collecting the blood, which required a complicated operation. At this time, when the accumulated blood is discharged to the outside of the circuit, the place where the blood is discarded becomes a problem, or the total blood loss becomes a problem when the blood collection is repeated several times. On the other hand, when pushing back the accumulated blood into the circuit, it is not preferable because microaggregates may be generated and mixed due to the accumulated blood.

【0003】上記の回路の欠点である血液の導管内の滞
留を防止するものとしてUSP4,469,659に示
されているものが有る。この特許に開示されているのは
採血装置を有する一体型人工肺の血液流入口と血液流出
口とを再循環ラインで結びこのラインの途中に3連活栓
を設けて、ライン中の滞留を防止しかつ活栓から新鮮血
を採取出来るようにした採血装置付一体型人工肺であ
る。
There is one disclosed in US Pat. No. 4,469,659 which prevents blood from staying in the conduit which is a drawback of the above circuit. The patent discloses that the blood inlet and the blood outlet of an integrated oxygenator having a blood sampling device are connected by a recirculation line and a triple stop cock is provided in the middle of the line to prevent stagnation in the line. This is an integrated oxygenator with a blood sampling device that enables fresh blood to be collected from a stopcock.

【0004】しかしながらこの装置は装置内の血液循環
を一体型人工肺の血液流出口側の陽圧と血液流入口側の
陰圧を利用しているものであり、言い換えれば血流は血
液流出口側から血液流入口へ向かう流れとなっている。
従って血液流出口側の新鮮血採取は3連活栓を操作する
だけで採取可能であるが、血液流入口側の新鮮血を得る
ためには途中に設けられている3連活栓を操作して一度
ライン内の血流を停止し、さらに3連活栓より血液流入
口側にある血液を排出した後、改めて血液流入口側の新
鮮血を採取しなければならない。
However, this device utilizes the positive pressure on the blood outlet side and the negative pressure on the blood inlet side of the integrated oxygenator for blood circulation in the device, in other words, the blood flow is the blood outlet. The flow is from the side to the blood inlet.
Therefore, the fresh blood on the blood outlet side can be collected only by operating the three-way stopcock, but in order to obtain fresh blood on the blood inlet side, the three-way stopcock provided on the way is operated once. After stopping the blood flow in the line and discharging the blood on the blood inlet side from the triple stopcock, fresh blood on the blood inlet side must be collected again.

【0005】またあくまで一体型人工肺の血液流出口側
の陽圧と血液流入口側の陰圧を利用しているものである
ため他の回路への応用は困難であるといった点からこの
装置もまた採血装置としては決定的な装置とは言えない
のが現実である。
Further, since the positive pressure on the blood outlet side and the negative pressure on the blood inlet side of the integrated oxygenator are utilized, this device is difficult to apply to other circuits. In reality, it cannot be said that the blood sampling device is a definitive device.

【0006】[0006]

【発明が解決しようとする課題】本発明は上記状況に鑑
み、体外循環中の血液をその循環回路から容易に採取出
来ることによってダイレクトな血液状態の確認、操作の
簡便化、操作時間の短縮が図れ、さらにシステム自体が
単純であるため体外血液循環回路の様々な部位に応用可
能なシステムの提供を課題としてなされたものである。
In view of the above situation, the present invention makes it possible to easily collect blood in the extracorporeal circulation from its circulation circuit, thereby making it possible to directly check the blood state, simplify the operation, and shorten the operation time. Moreover, since the system itself is simple, it is an object to provide a system applicable to various parts of the extracorporeal blood circulation circuit.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するもの
として、本発明は、体外血液循環用の血液流通管の一部
に設けられた血液流入部と血液流出部を有するバイパス
ラインと該バイパスラインの該血液流入部と該血液流出
部との途中に少なくとも一つの採血用サンプリングポー
トを有し、体外循環血液の採取に用いる採血装置であ
り、該バイパスライン中を血液は滞留する事なく常に流
れている。従ってサンプリングの際ライン中の血液を一
旦排出する事なく、血液流通管内を流通している血液と
実質的に同じ条件の新鮮血をサンプリングすることが容
易に可能である。
To achieve the above object, the present invention provides a bypass line having a blood inflow section and a blood outflow section provided in a part of a blood circulation tube for extracorporeal blood circulation, and the bypass. A blood sampling device used for collecting extracorporeal blood, which has at least one blood sampling sampling port in the middle of the blood inflow part and the blood outflow part of the line, and blood is always retained in the bypass line. Flowing. Therefore, it is possible to easily sample fresh blood under substantially the same conditions as the blood circulating in the blood circulation tube without temporarily discharging the blood in the line during sampling.

【0008】また本発明の採血装置は血液流通管内を流
れている血流を巧みに利用しているため血流のある導管
であればその設置位置は任意に設定することが出来る。
Further, the blood collecting apparatus of the present invention skillfully utilizes the blood flow flowing in the blood flow tube, so that the installation position of the blood flow conduit can be arbitrarily set.

【0009】本発明の採血装置は、血液流通管とバイパ
スラインとの血液流入角度が血液流通管内を流通する血
液流に対して鋭角を形成してなる血液流入部を備え、こ
の角度を変化させることによってバイパスラインへの流
入血液の量をコントロールすることが可能である。
The blood collecting device of the present invention is provided with a blood inflow portion in which the blood inflow angle between the blood flow pipe and the bypass line forms an acute angle with the blood flow flowing in the blood flow pipe, and this angle is changed. This makes it possible to control the amount of blood flowing into the bypass line.

【0010】また流入血液の量は、血液流通管とバイパ
スラインの血液流出部の角度が該血液流通管内を流通す
る血液流に対して鈍角を形成するように構成することに
よってこの部分に於ける血液には血液流通管側に引かれ
るように圧力が加わり、この角度を調整することによっ
てもまたコントロールが容易に可能である。
The amount of inflowing blood is set at this portion by forming an angle between the blood flow pipe and the blood outflow portion of the bypass line to form an obtuse angle with respect to the blood flow flowing in the blood flow pipe. Pressure is applied to the blood so that it is drawn toward the blood flow tube side, and control can also be easily performed by adjusting this angle.

【0011】本発明のような新鮮血の採取の用途にバイ
パスラインを用いる場合常にバイパスライン中を血液が
凝固しないよう流通していることは言うまでもないが、
流れが速すぎてもサンプリング時に空気を巻き込む可能
性があることから最適な血流量を定めることが重要であ
る。
Needless to say, when a bypass line is used for collecting fresh blood as in the present invention, blood is always circulated in the bypass line so that blood does not coagulate.
It is important to determine the optimum blood flow because the air may be entrapped during sampling even if the flow is too fast.

【0012】本発明のように血液流通管にバイパスライ
ンを設ける構成の場合、血液流通管の太さに対するバイ
パスラインの太さ、血液流通管内を流れる血流速等にも
よるが、バイパスラインの血液流入部は血液流通管の血
流方向に対して5度から100度、より好ましくは20
度から60度の鋭角を保つことが好ましく、またバイパ
スラインの血液流出部は血液流通管の血流方向に対して
80度から175度、より好ましくは120度から16
0度の鈍角を保つことが好ましい。
In the case of the structure in which the bypass line is provided in the blood circulation pipe as in the present invention, although it depends on the thickness of the bypass circulation line to the thickness of the blood circulation pipe, the flow velocity of blood flowing in the blood circulation pipe, etc. The blood inflow portion is 5 to 100 degrees with respect to the blood flow direction of the blood flow tube, and more preferably 20 degrees.
It is preferable to maintain an acute angle of 60 to 60 degrees, and the blood outflow portion of the bypass line is 80 to 175 degrees with respect to the blood flow direction of the blood flow tube, and more preferably 120 to 16 degrees.
It is preferable to maintain an obtuse angle of 0 degree.

【0013】前段の範囲で血液流入部および/または血
液流出部を構成した場合バイパスラインの内径を細くお
よび/またはライン長を短くしてもバイパスライン中の
血流速は確保されるので採血装置自体の小型化も可能で
あり、血液処理装置の構成の一部として組み込むことが
好適である。
When the blood inflow section and / or the blood outflow section are formed in the range of the former stage, the blood flow velocity in the bypass line is secured even if the inner diameter of the bypass line is narrowed and / or the line length is shortened. The device itself can be downsized, and it is preferable to incorporate it as a part of the configuration of the blood processing apparatus.

【0014】また本発明の採血装置において血液流入部
および/または血液流出部と血液流通管との接続部分を
可変ジョイント等の液密であり且つ可動な接続とするこ
とによって採血用途、あるいは血液流通管を流通する血
液量によって採血装置に流入する血液量を任意に可変と
することもまた好適である。
Further, in the blood collecting apparatus of the present invention, the connecting portion between the blood inflow portion and / or the blood outflow portion and the blood circulation pipe is made into a fluid-tight and movable connection such as a variable joint, so that blood can be collected or used. It is also preferable to arbitrarily change the amount of blood flowing into the blood collecting device according to the amount of blood flowing through the tube.

【0015】以下に採血装置を備えた血液処理装置につ
いて説明する。
A blood processing apparatus having a blood collecting device will be described below.

【0016】体外血液循環を行う際、常時血液の様子を
確認しながら用いられる血液処理装置としては人工肺装
置等が上げられる。
An artificial lung device or the like can be used as a blood processing device used while observing the state of blood at all times when performing extracorporeal blood circulation.

【0017】人工肺装置の場合、常時確認を行う血液の
確認項目としては血液中の酸素、二酸化炭素分圧、p
H、ヘモグロビン濃度、Na+、K+等があり中でも酸素
分圧等の血液中の酸素溶存度は生体の酸素需要量に対す
る、人工肺装置での酸素添加量を調整していく上で極め
て重要なファクターである。
In the case of the artificial lung device, the items to be checked for blood that are constantly checked are oxygen in the blood, carbon dioxide partial pressure, and p.
There are H, hemoglobin concentration, Na + , K +, etc. Among them, the oxygen solubility in blood such as oxygen partial pressure is extremely important in adjusting the oxygen addition amount in the oxygenator against the oxygen demand of the living body. Is a factor.

【0018】この血液中の溶存度を確認するための血液
の採取場所としては生体の酸素要求量を判断するために
体外循環回路中での値の変動をも考慮すると、人工肺装
置へ血液が流入する直前が最も好ましく、装置の血液流
入口に直接採血装置が備えられていることがより好まし
い。
As a place for collecting blood for confirming the degree of dissolution in the blood, the blood is transferred to the artificial lung device in consideration of the fluctuation of the value in the extracorporeal circulation circuit in order to judge the oxygen demand of the living body. Immediately before the inflow, it is most preferable, and it is more preferable that a blood collecting device is directly provided at the blood inlet of the device.

【0019】また人工肺装置は種々の構成のものが広く
知られているが中でも貯血槽一体型人工肺装置が昨今の
主流となりつつある。本発明の採血装置は一体型人工肺
の場合でも備えることが可能なことは言うまでもない。
Various types of artificial lung devices are widely known, but a blood reservoir integrated type artificial lung device is becoming the mainstream in recent years. It goes without saying that the blood collection device of the present invention can be provided even in the case of an integrated oxygenator.

【0020】一体型人工肺の場合、体外循環回路から血
液がまず人工肺部分へ入るタイプのものばかりではなく
一旦貯血槽に入った後に装置内の流路を経由して人工肺
へと導かれるものも見受けられるがこの場合、本発明の
採血装置は貯血槽の血液導入口に備えられるのが最も好
適である。
In the case of the integrated oxygenator, not only is the blood from the extracorporeal circulation circuit first entering the oxygenator, but is also introduced into the oxygenator once it enters the blood reservoir and then passes through the flow path in the device. In some cases, however, the blood collecting device of the present invention is most preferably provided at the blood inlet of the blood reservoir.

【0021】なお人工肺の場合、最適な酸素化が絶対的
な命題であり人工肺内部に流入する直前の血液状態を把
握することも有意義であるが、ねらいどおりの酸素化が
達成されているかを確認するために人工肺から流出して
きた血液の状態も適確に捉える必要が有り、人工肺に取
り付けられた血液導出口に本発明の採血装置を設置する
ことも可能である。
In the case of the artificial lung, optimal oxygenation is an absolute proposition, and it is also meaningful to understand the blood state immediately before flowing into the artificial lung. Is the desired oxygenation achieved? In order to confirm the above, it is necessary to accurately grasp the state of blood flowing out from the artificial lung, and it is possible to install the blood collecting device of the present invention at the blood outlet port attached to the artificial lung.

【0022】本発明の採血装置に備えられるサンプリン
グ部分は再シール機能を備えた、いわゆる混注口を使用
することで十分使用可能であるが、混注口の場合、ニー
ドルを用いて再シール部分を穿刺することが必要とな
り、3方活栓のような流路停止/切り替え機構を備えて
いるものであればニードルによる穿刺の必要はなく誤刺
防止等安全性、サンプリングの容易性といった観点から
好ましい。
The sampling portion provided in the blood collecting apparatus of the present invention can be sufficiently used by using a so-called mixed injection port having a reseal function, but in the case of the mixed injection port, the resealed portion is punctured with a needle. Therefore, it is preferable to use a three-way stopcock having a flow path stopping / switching mechanism, from the viewpoint of safety such as prevention of erroneous sticking and ease of sampling without the need for needle puncture.

【0023】また本発明の採血装置を構成する材料とし
ては、少なくとも血液流通管との接続部分に比較的硬質
な材料でありかつ内部の様子が確認できる程度の透明性
を有するポリカーボネイト、硬質塩化ビニル、ポリプロ
ピレン、ABS等がバイパスラインを通過する安定した
血流の確保及び血流の状態の目視確認と言った観点から
好ましい。
Further, as a material constituting the blood collecting device of the present invention, a polycarbonate or a hard vinyl chloride which is a relatively hard material at least at a connecting portion with the blood flow tube and has transparency such that an internal state can be confirmed. , Polypropylene, ABS, etc. are preferable from the viewpoints of securing stable blood flow passing through the bypass line and visually confirming the state of blood flow.

【0024】[0024]

【実施例】以下、本発明の採血装置およびこれを備えた
血液処理装置を添付図面に示す好適実施例に基づいてさ
らに具体的に説明するが本発明はこれらに何ら限定され
るものではない。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The blood collecting device of the present invention and the blood processing device equipped with the same will now be described more specifically with reference to the preferred embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

【0025】図1は、本発明の採血装置の一実施例を示
す。同図に示すように、本発明の採血装置1は血液流入
部21と血液流出部22とを両端部に備え中間部近傍に
3方活栓23を備えてなるバイパスライン2と血液流通
管3とからなる。以下これらについて順次説明する。
FIG. 1 shows an embodiment of the blood collecting apparatus of the present invention. As shown in the figure, the blood collection device 1 of the present invention includes a blood inflow portion 21 and a blood outflow portion 22 at both ends, a bypass line 2 having a three-way stopcock 23 in the vicinity of an intermediate portion, and a blood circulation tube 3. Consists of. These will be sequentially described below.

【0026】血液流通管3の上流部に分岐管状に設けら
れるバイパスライン2の血液流入部21は血流に対して
角度Aを保っている。角度Aは、5度から100度、よ
り好ましくは20度から60度の鋭角を保つことが好ま
しい。
The blood inflow portion 21 of the bypass line 2 provided in a branched pipe upstream of the blood flow pipe 3 maintains an angle A with respect to the blood flow. The angle A preferably maintains an acute angle of 5 to 100 degrees, more preferably 20 to 60 degrees.

【0027】バイパスライン中央部近傍に位置している
3方活栓のレバー231は通常はバイパスライン内の血
流を確保する位置になっているが、血液を採取する際に
は3方活栓の採取口232に直接シリンジ等を嵌合した
後、3方活栓のレバー231を操作してバイパスライン
下流方向への流れを停止し採取口とバイパスライン上流
部とを連通状態にすることによって新鮮血を採取するこ
とができる。
The lever 231 of the three-way stopcock located in the vicinity of the central portion of the bypass line is usually at a position to secure the blood flow in the bypass line. After directly fitting a syringe or the like to the port 232, the lever 231 of the three-way stopcock is operated to stop the flow in the downstream direction of the bypass line and establish a communication state between the sampling port and the upstream part of the bypass line to collect fresh blood. Can be collected.

【0028】採取終了後は再び初期の位置に3方活栓の
レバー231を戻すことによりバイパスライン内の血流
は確保される。
After the completion of sampling, the blood flow in the bypass line is secured by returning the lever 231 of the three-way stopcock to the initial position again.

【0029】血液流通管の下流部に分岐管状に設けられ
るバイパスラインの血液流出部24は血流に対して角度
Bを保っている。角度Bは、80度から175度、より
好ましくは120度から160度の鈍角を保つことが好
ましい。
The blood outflow portion 24 of the bypass line provided in a branched pipe downstream of the blood flow pipe keeps the angle B with respect to the blood flow. The angle B preferably maintains an obtuse angle of 80 degrees to 175 degrees, more preferably 120 degrees to 160 degrees.

【0030】図2に、本発明の採血装置を備える血液処
理器の全体図、図3に図2の一部拡大図を示す。なお本
発明の採血装置を備える血液処理器の一例としては図2
に示す貯血槽一体型人工肺4を基に説明する。
FIG. 2 is an overall view of a blood processing apparatus equipped with the blood collecting device of the present invention, and FIG. 3 is a partially enlarged view of FIG. It should be noted that an example of a blood processing device including the blood collecting device of the present invention is shown in FIG.
The description will be made based on the blood reservoir integrated artificial lung 4 shown in FIG.

【0031】図2に示す貯血槽一体型人工肺4は開心術
等に用いられ、人体から血液を体外に導出し血液回路循
環中に生じたマイクロバブルあるいは手術野で発生する
骨片等を貯血槽部分41で除去した後、肺部分で中空糸
状等の膜を介して酸素を添加し酸素化された血液を再び
体内に戻すための構成を有している。
The blood reservoir integrated oxygenator 4 shown in FIG. 2 is used for open heart surgery and the like, and blood is drawn from the human body to the outside of the body to store microbubbles generated during blood circuit circulation or bone fragments generated in the surgical field. After removal in the tank portion 41, oxygen is added to the lung portion through a hollow fiber membrane or the like to return oxygenated blood to the body again.

【0032】このような一体型人工肺4を用いて体外循
環をする場合、体内から導出された血液に肺部分43で
最適な酸素添加を施す必要が有る。
In the case of performing extracorporeal circulation using such an integral artificial lung 4, it is necessary to optimally add oxygen to the blood drawn from the body in the lung portion 43.

【0033】そのためにはまず体内から導出された血液
の状態を正確に見極める必要が有り、この一体型人工肺
の血液導入口411を採血装置1の一部とし、該血液流
通管と、血液流入部と血液流出部とを両端部に備え中間
部近傍に3方活栓を備えてなるバイパスラインとから構
成される本発明の採血装置を血液導入口に備えることに
よって血液導入口側に配置された採血装置内には酸素化
される前の血液が、常に流通しており、採血装置の3方
活栓を通じて正確な血液状態の把握が可能となる。
For that purpose, it is first necessary to accurately determine the state of the blood drawn out from the body, and the blood introducing port 411 of this integrated oxygenator is made a part of the blood collecting device 1, and the blood circulation tube and the blood inflow are provided. And a blood outlet are provided at both ends and a bypass line provided with a three-way stopcock in the vicinity of the middle part is provided on the blood inlet side by providing the blood inlet of the present invention at the blood inlet. Blood before being oxygenated always flows in the blood collecting device, and it is possible to accurately grasp the blood state through the three-way stopcock of the blood collecting device.

【0034】なお血液採取のための3方活栓は採取時の
取り扱い性向上を目的として、貯血槽天面に直接固定す
る位置に配置することもまた好適である。
It is also preferable to dispose the three-way stopcock for blood collection at a position where it is directly fixed to the top surface of the blood reservoir for the purpose of improving the handling property at the time of collection.

【0035】また血液の状態を一体型人工肺の血液導入
口411で正確に見極めるのと同時にこの肺部分での酸
素化を適確に行われているかを検証するために肺部分か
ら導出される血液の状態を確認することも必要であり、
本発明の採血装置はこの血液導出口431に血液導入口
411と同様に設けられる事によって、血液導出口43
1に配置された採血装置内には酸素化された直後の血液
が常に流通しており、採血装置の3方活栓を通じて正確
な血液状態の把握が可能となる。
In addition, the state of blood is accurately determined at the blood introducing port 411 of the integrated oxygenator, and at the same time, it is derived from the lung portion in order to verify whether or not the oxygenation is properly performed in this lung portion. It is also necessary to check the blood condition,
The blood collecting device of the present invention is provided at this blood outlet 431 in the same manner as the blood inlet 411, so that the blood outlet 43
Blood immediately after being oxygenated circulates in the blood collecting device arranged at No. 1, and it is possible to accurately grasp the blood state through the three-way stopcock of the blood collecting device.

【0036】なおサンプリング方法は採血装置単独の場
合と一体型人工肺に取り付けられているもので変わりは
無く、各々、バイパスライン中央部近傍に位置している
3方活栓のレバーがサンプリング時以外はバイパスライ
ン内の血流を確保する位置になっているが、血液を採取
する際には3方活栓の採取口に直接シリンジ等を嵌合し
た後、3方活栓のレバーを操作してバイパスライン下流
方向への流れを停止し採取口とバイパスライン上流部と
を連通状態にすることによって新鮮血を採取することが
できる。
There is no difference in the sampling method between the case where the blood sampling device is used alone and the case where the device is attached to the integrated oxygenator, except that the lever of the three-way stopcock located near the center of the bypass line is not sampling. Although the position where blood flow in the bypass line is secured, when collecting blood, after fitting a syringe or the like directly into the collection port of the 3-way stopcock, operate the lever of the 3-way stopcock to operate the bypass line. Fresh blood can be collected by stopping the flow in the downstream direction and bringing the collection port and the upstream part of the bypass line into communication with each other.

【0037】採取終了後は再び初期の位置に3方活栓の
レバーを戻すことによりバイパスライン内の血流は確保
される。
After the collection, the blood flow in the bypass line is secured by returning the lever of the three-way stopcock to the initial position again.

【0038】[0038]

【発明の効果】以上詳述してきた如く、本発明の採血装
置およびこれを備えた血液処理器は血液流通管内を流通
する血液が常に滞留する事なく流通しており採血操作も
容易である。また血液処理器の血液導入口にこれを備え
ることによって血液処理器に導入される直前の血液の状
態を確認および/または血液導出口にこれを備えること
によって血液処理器によって行われた血液の処理状態を
容易に確認できる。
As described in detail above, in the blood collecting device of the present invention and the blood processing apparatus equipped with the same, the blood circulating in the blood circulation pipe is always flowing without staying, and the blood collecting operation is easy. Further, by providing this at the blood inlet of the blood processing device, the state of blood immediately before being introduced into the blood processing device can be confirmed and / or by providing this at the blood outlet port, the processing of blood performed by the blood processing device. You can easily check the status.

【0039】さらに本発明の採血装置は非常に簡易な構
成からなっており装着部位を任意に設定でき血液流入部
および/または血液流出部の角度を任意に設定すること
により採血装置内を流通する血液量を容易に設定できる
ことからその適用は広く、体外血液循環の分野に大きく
貢献するものと期待される。
Further, the blood collecting device of the present invention has a very simple structure, and the mounting site can be arbitrarily set, and the blood can be circulated in the blood collecting device by arbitrarily setting the angles of the blood inflow part and / or the blood outflow part. Since the blood volume can be easily set, it is widely applied and is expected to make a great contribution to the field of extracorporeal blood circulation.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の採血装置の一実施例を表す全体図であ
る。
FIG. 1 is an overall view showing an embodiment of a blood collecting device of the present invention.

【図2】本発明の採血装置を備える血液処理器の一実施
例を表す全体図である。
FIG. 2 is an overall view showing an embodiment of a blood processing device including the blood collecting device of the present invention.

【図3】本発明の採血装置を備える血液処理器の一部拡
大図である。
FIG. 3 is a partially enlarged view of a blood processing device including the blood collecting device of the present invention.

【符号の説明】[Explanation of symbols]

1 採血装置 2 バイパスライン 21 血液流入部 22 血液流出部 23 3方活栓 3 血液流通管 4 貯血槽一体型人工肺 41 貯血槽 411 血液導入部 42 熱交換器 43 人工肺 433 血液導出部 DESCRIPTION OF SYMBOLS 1 Blood collection device 2 Bypass line 21 Blood inflow part 22 Blood outflow part 23 Three-way stopcock 3 Blood distribution tube 4 Blood reservoir integrated artificial lung 41 Blood reservoir 411 Blood introduction part 42 Heat exchanger 43 Artificial lung 433 Blood outlet part

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 体外血液循環用の血液流通管の一部に設
けられた血液流入部と血液流出部を有するバイパスライ
ンと該バイパスラインの該血液流入部と該血液流出部と
の途中に少なくとも一つの採血用サンプリングポートを
有し、体外循環血液の採取に用いることを特徴とする採
血装置。
1. A bypass line having a blood inflow section and a blood outflow section provided in a part of a blood circulation tube for extracorporeal blood circulation, and at least in the middle of the blood inflow section and the blood outflow section of the bypass line. A blood sampling device having one blood sampling port and used for collecting extracorporeal blood circulation.
【請求項2】 該血液流通管と該バイパスラインとの血
液流入角度が該血液流通管内を流通する血液流に対して
鋭角を形成してなる該血液流入部および/または該血液
流通管と該バイパスラインとの血液流出角度が該血液流
通管内を流通する血液流に対して鈍角を形成してなる該
血液流出部を備えてなることを特徴とする請求項1記載
の採血装置。
2. The blood inflow section and / or the blood flow tube, wherein the blood inflow angle between the blood flow tube and the bypass line forms an acute angle with respect to the blood flow flowing in the blood flow tube. The blood sampling apparatus according to claim 1, further comprising the blood outflow portion, wherein the blood outflow angle with the bypass line forms an obtuse angle with respect to the blood flow flowing in the blood flow tube.
【請求項3】 血液流入部と血液流出部を有するバイパ
スラインと該バイパスラインの該血液流入部と該血液流
出部との途中に少なくとも一つの採血用サンプリングポ
ートを有してなる採血装置を血液流入口に備えてなる血
液処理装置。
3. A blood sampling device comprising a bypass line having a blood inflow portion and a blood outflow portion, and at least one blood sampling port in the bypass line between the blood inflow portion and the blood outflow portion. A blood processing device provided at the inlet.
JP7158244A 1995-06-26 1995-06-26 Blood collecting device and blood processing device provided with this device Pending JPH0910302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7158244A JPH0910302A (en) 1995-06-26 1995-06-26 Blood collecting device and blood processing device provided with this device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7158244A JPH0910302A (en) 1995-06-26 1995-06-26 Blood collecting device and blood processing device provided with this device

Publications (1)

Publication Number Publication Date
JPH0910302A true JPH0910302A (en) 1997-01-14

Family

ID=15667413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7158244A Pending JPH0910302A (en) 1995-06-26 1995-06-26 Blood collecting device and blood processing device provided with this device

Country Status (1)

Country Link
JP (1) JPH0910302A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6657352B1 (en) 1999-12-27 2003-12-02 Mitsubishi Denki Kabushiki Kaisha Alternator and method of manufacture therefor
JP2011050687A (en) * 2009-09-04 2011-03-17 Jms Co Ltd Artificial lung device equipped with safety mechanism to pressure buildup
CN108784714A (en) * 2018-07-03 2018-11-13 南通市第二人民医院 A kind of novel hemo system sampler and application method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6657352B1 (en) 1999-12-27 2003-12-02 Mitsubishi Denki Kabushiki Kaisha Alternator and method of manufacture therefor
US6717316B2 (en) 1999-12-27 2004-04-06 Mitsubishi Denki Kabushiki Kaisha Alternator and method of manufacture therefor
JP2011050687A (en) * 2009-09-04 2011-03-17 Jms Co Ltd Artificial lung device equipped with safety mechanism to pressure buildup
CN108784714A (en) * 2018-07-03 2018-11-13 南通市第二人民医院 A kind of novel hemo system sampler and application method

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