JPH0212111B2 - - Google Patents
Info
- Publication number
- JPH0212111B2 JPH0212111B2 JP59011592A JP1159284A JPH0212111B2 JP H0212111 B2 JPH0212111 B2 JP H0212111B2 JP 59011592 A JP59011592 A JP 59011592A JP 1159284 A JP1159284 A JP 1159284A JP H0212111 B2 JPH0212111 B2 JP H0212111B2
- Authority
- JP
- Japan
- Prior art keywords
- dialysate
- circuit
- blood
- dialyzer
- pressure
- 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 - Lifetime
Links
- 239000008280 blood Substances 0.000 claims description 37
- 210000004369 blood Anatomy 0.000 claims description 37
- 238000000502 dialysis Methods 0.000 claims description 22
- 230000036772 blood pressure Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000000385 dialysis solution Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000825 ultraviolet detection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は透析中のダイアライザにおける透析液
回路を閉回路構成とし、このときの透析液圧信号
に基づき限外過能を求めるようにした人工透析
装置に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention is an artificial dialyzer in which the dialysate circuit in a dialyzer during dialysis is configured as a closed circuit, and the ultraperformance is determined based on the dialysate pressure signal at this time. Regarding dialysis equipment.
＜従来の技術＞
周知のように、人工透析装置のダイアライザに
おける限外過能（以下、UFRPと言う）は、
個々のダイアライザ毎に異なるうえ、透析を続け
ると、経時的に低下する。また、同一のダイアラ
イザであつても、患者が異なると限外過率も異
なる。このため、UFRPを基準にして所定の限外
過を行う人工透析装置にあつては、定期的に
UFRPの測定を行つている。<Prior art> As is well known, the ultra-high performance (hereinafter referred to as UFRP) in the dialyzer of an artificial dialysis machine is
It differs for each dialyzer, and it also decreases over time as dialysis continues. Further, even if the dialyzer is the same, the extreme pass rate will be different for different patients. For this reason, for artificial dialysis machines that perform a predetermined ultraviolet ray based on UFRP, periodic
UFRP is being measured.
従来、この種の人工透析装置として、例えば、
特開昭56−84606号公報に開示されている陽圧ポ
ンプの人工透析装置が知られている。第１図に示
すように、上記装置のダイアライザ１における透
析液回路は供給ライン２に設置する透析液供給ポ
ンプ３及び流路開閉手段４（電磁弁）と、排出ラ
イン５を後述する計量ライン６、又は、透析液排
出先７に接続する流路切換手段８（三方コツク）
と、血液圧センサ９及び透析液圧センサ１０から
の信号を入力し、これらセンサで検出される血液
圧と透析液圧の差である限外過圧（以下、
TMPと言う）が設定限外過圧と一致するよう
にオートクレンメ１１に制御信号を出力する
TMP計算回路１２と、流路開閉手段４と流路切
換手段８の動作タイミングを制御するタイミング
回路（図示せず）とを備えている。計量ライン６
は、空気室が外気に開放された点滴筒型式のチヤ
ンバー１３と、計量ポンプ１４（ローラポンプ）
と、チヤンバー１３内の液面を一定値にする信号
を計量ポンプ１４に出力する液面センサ（図示せ
ず）とで構成されている。この液面センサを含む
制御系は、透析液供給の中断時、即ち、UFRP測
定時のみ動作するようになつている。 Conventionally, as this type of artificial dialysis device, for example,
An artificial dialysis device using a positive pressure pump is known as disclosed in Japanese Patent Application Laid-open No. 84606/1983. As shown in FIG. 1, the dialysate circuit in the dialyzer 1 of the above device includes a dialysate supply pump 3 and a flow path opening/closing means 4 (electromagnetic valve) installed in a supply line 2, a discharge line 5, and a metering line 6, which will be described later. , or a flow path switching means 8 (three-way type) connected to the dialysate discharge destination 7
Then, the signals from the blood pressure sensor 9 and the dialysate pressure sensor 10 are input, and the ultraoverpressure (hereinafter referred to as
Outputs a control signal to the auto-cleaner 11 so that TMP (referred to as TMP) matches the set limit overpressure.
It includes a TMP calculation circuit 12 and a timing circuit (not shown) that controls the operation timing of the channel opening/closing means 4 and the channel switching means 8. Weighing line 6
The chamber 13 is a drip tube type chamber whose air chamber is open to the outside air, and the metering pump 14 (roller pump).
and a liquid level sensor (not shown) that outputs a signal to the metering pump 14 to maintain the liquid level in the chamber 13 at a constant value. The control system including this liquid level sensor is designed to operate only when dialysate supply is interrupted, that is, when UFRP is measured.
以上の構成において、透析は、流路開閉手段４
を開、流路切換手段８を排出ライン５と排出先７
とを連通する位置にして行われる。このとき、
TMP計算回路１２の動作により、TMPは設定値
通りに制御されるので、ダイアライザ１におい
て、設定TMPに対応した限外過が継続して行
われる。一方、UFRPの測定は、流路開閉手段４
を閉、流路切換手段８を排出ライン５と計量ライ
ン６とを連通する位置にして行われる（チヤンバ
ー１３内は外気と連通状態にある）。このときも、
TMP計算回路１２の動作により、TMPは設定値
通りに制御されるので、ダイアライザ１におい
て、設定TMPに対応した限外過が継続して行
われる。そして、排出ライン５の液体は、計量ラ
イン６に導かれ、チヤンバー１３に流入し、液面
センサを含む制御系によつて操作される計量ポン
プ１４により排出される。これにより、チヤンバ
ー１３の液面が一定に保持されるので、このとき
の計量ポンプ１４の吐出量（排出量）から限外
過量（以下、UFと言う）を求めると共に、計量
ポンプ１４の動作時間から限外過率（以下、
UFRと言う）を算出する。そして、このときの
TMPからUFRP（＝UFR／TMP）を演算し、以
後、このUFRPを基準にして限外過を行う。 In the above configuration, dialysis is performed by the channel opening/closing means 4
open the flow path switching means 8 to the discharge line 5 and the discharge destination 7.
This is done in a position that communicates with the At this time,
Since the TMP is controlled according to the set value by the operation of the TMP calculation circuit 12, the dialyzer 1 continues to perform an overpass corresponding to the set TMP. On the other hand, the measurement of UFRP is performed using the channel opening/closing means 4.
is closed, and the flow path switching means 8 is placed in a position where the discharge line 5 and the metering line 6 are communicated with each other (the inside of the chamber 13 is in communication with the outside air). At this time too,
Since the TMP is controlled according to the set value by the operation of the TMP calculation circuit 12, the dialyzer 1 continues to perform an overpass corresponding to the set TMP. The liquid in the discharge line 5 is then led to a metering line 6, flows into the chamber 13, and is discharged by a metering pump 14 operated by a control system including a liquid level sensor. As a result, the liquid level in the chamber 13 is kept constant, so the ultra-large excess amount (hereinafter referred to as UF) is determined from the discharge amount (discharge amount) of the metering pump 14 at this time, and the operating time of the metering pump 14 is to the ultraviolet pass rate (hereinafter,
(called UFR). And at this time
UFRP (=UFR/TMP) is calculated from TMP, and after that, ultraviolet detection is performed based on this UFRP.
しかし、従来の人工透析装置にあつては、液面
センサを有するチヤンバー、計量ポンプ等で
UFRPを測定する手段を構成していたため、装置
が複雑な構成となるうえ、高価になる（ポンプ類
は一般に高価である）という問題がある。 However, in the case of conventional artificial dialysis machines, a chamber with a liquid level sensor, a metering pump, etc.
Since the method consisted of a means for measuring UFRP, the device had a complicated structure and was expensive (pumps are generally expensive).
＜発明が解決しようとする課題＞
本発明で解決しようとする技術的課題は、この
ようなUFRP測定手段を使用せずUFRPを測定で
きる人工透析装置を実現することにある。<Problems to be Solved by the Invention> A technical problem to be solved by the present invention is to realize an artificial dialysis apparatus that can measure UFRP without using such a UFRP measuring means.
＜課題を解決するための手段＞
本発明の第１の発明は、
Ａ 血液回路側が血液流入ライン及び血液流出ラ
インを介し患者に接続され、透析液回路側が透
析液供給ライン及び透析液排出ラインに接続さ
れたダイアライザ
Ｂ 血液流入ラインに設けられた血液ポンプ
Ｃ 血液回路に設けられた血液圧センサ
Ｄ 透析液回路に設けられた透析液圧センサ
Ｅ 血液流出ラインに設けられ、治療時、血液回
路側の血液圧を変化させ、血液圧と透析液回路
側の透析液圧との差が設定TMPと一致するよ
うに制御されるオートクレンメ
Ｆ 透析液供給ラインと透析液排出ラインとの間
に接続されたバイパスライン
Ｇ UFRP測定時、ダイアライザの透析液回路を
閉回路とし透析液をバイパスラインを経て排出
させ、治療時、バイパスラインを閉にしダイア
ライザの透析液回路に透析液を流す回路切換手
段
Ｈ ダイアライザの透析液回路を閉回路にしたと
きの経過時間に対する透析液圧の変化を表わす
複数種類のUFRPデータが予め記憶され、
UFRP測定時に、ダイアライザの透析液回路を
閉回路に切換えた後、一定時間経過後に測定さ
れる透析液圧に基づき、この測定値に一致する
UFRPデータを選択してUFRPを特定する手段
とから構成される。<Means for Solving the Problems> A first aspect of the present invention provides the following features: A. The blood circuit side is connected to the patient via a blood inflow line and a blood outflow line, and the dialysate circuit side is connected to a dialysate supply line and a dialysate discharge line. Connected dialyzer B Blood pump C provided in the blood inflow line Blood pressure sensor D provided in the blood circuit Dialysis fluid pressure sensor E provided in the dialysate circuit Provided in the blood outflow line, and is connected to the blood circuit side during treatment The autocleaner is connected between the dialysate supply line and the dialysate discharge line. Bypass line G When measuring UFRP, the dialysate circuit of the dialyzer is closed and the dialysate is discharged through the bypass line. During treatment, the bypass line is closed and the dialysate is flowed into the dialyzer's dialysate circuit. Circuit switching means H Dialyzer Multiple types of UFRP data representing changes in dialysate pressure with respect to elapsed time when the dialysate circuit is closed is stored in advance,
When measuring UFRP, this measurement value is based on the dialysate pressure measured after a certain period of time after switching the dialyzer's dialysate circuit to a closed circuit.
and means for selecting UFRP data and specifying UFRP.
本発明の第２の発明は、
Ａ 血液回路側が血液流入ライン及び血液流出ラ
インを介し患者に接続され、透析液回路側が透
析液供給ライン及び透析液排出ラインに接続さ
れたダイアライザ
Ｂ 血液流入ラインに設けられた血液ポンプ
Ｃ 血液回路に設けられた血液圧センサ
Ｄ 透析液回路に設けられた透析液圧センサ
Ｅ 血液流出ラインに設けられ、治療時、血液回
路側の血液圧を変化させ、血液圧と透析液回路
側の透析液圧との差が設定TMPと一致するよ
うに制御されるオートクレンメ
Ｆ 透析液供給ラインと透析液排出ラインとの間
に接続されたバイパスライン
Ｇ UFRP測定時、ダイアライザの透析液回路を
閉回路とし透析液をバイパスラインを経て排出
させ、治療時、バイパスラインを閉にしダイア
ライザの透析液回路に透析液を流す回路切換手
段
Ｈ ダイアライザの透析液回路を閉回路にしたと
きの経過時間に対する透析液圧の変化を表わす
複数種類のUFRPデータが予め記憶され、
UFRP測定時に、ダイアライザの透析液回路を
閉回路に切換えた後、透析液圧が一定値に達す
るまでの経過時間を測定し、この測定値に一致
するUFRPデータを選択してUFRPを特定する
手段
とから構成される。 A second aspect of the present invention is a dialyzer whose blood circuit side is connected to a patient via a blood inflow line and a blood outflow line, and whose dialysate circuit side is connected to a dialysate supply line and a dialysate discharge line. Blood pump C provided in the blood circuit Blood pressure sensor D provided in the blood circuit Dialysis fluid pressure sensor E provided in the dialysate circuit Provided in the blood outflow line, changes the blood pressure on the blood circuit side during treatment, and adjusts the blood pressure The auto-cleaner F is controlled so that the difference between the dialysate pressure on the dialysate circuit side and the dialysate pressure matches the set TMP.Bypass line G connected between the dialysate supply line and the dialysate discharge line. The dialysate circuit of the dialyzer is made into a closed circuit, and the dialysate is discharged through the bypass line, and during treatment, the bypass line is closed and the dialysate is allowed to flow into the dialysate circuit of the dialyzer. Multiple types of UFRP data representing changes in dialysate pressure with respect to elapsed time are stored in advance,
A means of identifying UFRP by measuring the elapsed time until the dialysate pressure reaches a certain value after switching the dialyzer's dialysate circuit to a closed circuit during UFRP measurement, and selecting UFRP data that matches this measured value. It consists of
＜作用＞
本発明の第１の発明、及び第２の発明の場合
も、治療時は前記バイパスラインを閉にし前記ダ
イアライザの透析液回路に透析液を流した状態
で、前記血液圧センサと前記透析液圧センサで検
出される血液圧と透析液圧との差が設定TMPと
一致するように前記オートクレンメを制御する。
UFRP測定時、前記ダイアライザの透析液回路を
閉回路とし透析液を前記バイパスラインを経て排
出させる。前記人工透析装置の信号処理部には、
前記ダイアライザを閉回路にしたときの経過時間
に対する内部透析液圧の変化を表わす複数の
UFRPデータが予め記憶されており、本発明の第
１の発明では、前記ダイアライザの透析液回路を
閉回路に切換えた後、一定時間経過した後の内部
透析液圧を測定し、この測定値と一致するデータ
を選択しUFRPを特定する。<Function> Also in the case of the first invention and the second invention of the present invention, during treatment, the bypass line is closed and the dialysate is flowing through the dialyzer circuit, and the blood pressure sensor and the The auto-cleaner is controlled so that the difference between the blood pressure detected by the dialysate pressure sensor and the dialysate pressure matches the set TMP.
When measuring UFRP, the dialysate circuit of the dialyzer is closed and the dialysate is discharged through the bypass line. The signal processing unit of the artificial dialysis machine includes:
A plurality of values representing changes in internal dialysate pressure with respect to elapsed time when the dialyzer is closed circuit.
UFRP data is stored in advance, and in the first aspect of the present invention, after switching the dialysate circuit of the dialyzer to a closed circuit, the internal dialysate pressure is measured after a certain period of time has elapsed, and this measured value and Select matching data and identify UFRP.
本発明の第２の発明では、前記ダイアライザの
透析液回路を閉回路に切換えた後、内部透析液圧
が一定値に達するまでの経過時間を測定し、この
測定値と一致するデータを選択しUFRPを特定す
る。 In the second aspect of the present invention, after switching the dialysate circuit of the dialyzer to a closed circuit, the elapsed time until the internal dialysate pressure reaches a certain value is measured, and data that matches this measured value is selected. Identify UFRP.
＜実施例＞
以下、図面に従い本発明方法を説明する。第２
図は本発明の一実施例を示す構成図である。図
中、第１図に付した記号と同一のものは同一意味
で用いられている。この実施例装置は、ダイアラ
イザ１及びその周辺機器類と、この周辺機器類か
らの信号及びUFRを設定する操作パネル２１か
らの信号が入力され、電磁弁等の回路切換手段へ
の切換信号、或はTMP制御手段への制御信号を
与える信号処理部２２とで構成される。信号処理
部２２のROMには、血液圧センサ９及び透析液
圧センサ１０の出力信号が入力されたとき、これ
らの差をとりTMPを求め、これが操作パネル２
１からの設定値（所望のUFR）と一致するよう
にオートクレンメ１１を制御するプログラムと、
定期的に回路を切換えてUFRP測定回路を構成す
るプログラムと、該UFRP測定回路における透析
液圧とUFRPとの特性データから透析液圧センサ
１０の出力に基づきUFRPを求めるプログラムと
が記憶されている。<Example> The method of the present invention will be described below with reference to the drawings. Second
The figure is a configuration diagram showing an embodiment of the present invention. In the figure, the same symbols as in FIG. 1 are used with the same meaning. This embodiment device receives signals from the dialyzer 1 and its peripheral equipment, signals from the peripheral equipment, and a signal from an operation panel 21 for setting the UFR, and outputs a switching signal to a circuit switching means such as a solenoid valve, or is composed of a signal processing section 22 that provides a control signal to the TMP control means. When the output signals of the blood pressure sensor 9 and the dialysate pressure sensor 10 are input to the ROM of the signal processing unit 22, the difference between them is taken to obtain TMP, and this is sent to the operation panel 2.
A program that controls the auto-cleaner 11 to match the set value (desired UFR) from 1;
A program for periodically switching circuits to configure a UFRP measurement circuit, and a program for calculating UFRP based on the output of the dialysate pressure sensor 10 from characteristic data of the dialysate pressure and UFRP in the UFRP measurement circuit are stored. .
ダイアライザ１の透析液回路は、定速回転する
透析液供給ポンプ３、信号処理部２２により操作
される電磁弁２３及び透析液圧センサ１０（出力
信号は信号処理部２２に入力される）を有する供
給ライン２と、信号処理部２２により操作される
電磁弁２４を有する排出ライン５と、信号処理部
２２より操作される電磁弁２５を有するバイパス
ライン２６とで構成される。一方、ダイアライザ
１の血液回路は、定速回転する血液ポンプ２７
と、動脈チヤンバー２８と、信号処理部２２によ
り操作されるオートクレンメ１１と、動脈チヤン
バー２９と、血液圧センサ９（出力信号は信号処
理部２２に入力される）とを備えている。 The dialysate circuit of the dialyzer 1 includes a dialysate supply pump 3 that rotates at a constant speed, a solenoid valve 23 operated by a signal processing unit 22, and a dialysate pressure sensor 10 (an output signal is input to the signal processing unit 22). It is composed of a supply line 2, a discharge line 5 having a solenoid valve 24 operated by a signal processing section 22, and a bypass line 26 having a solenoid valve 25 operated by the signal processing section 22. On the other hand, the blood circuit of the dialyzer 1 includes a blood pump 27 that rotates at a constant speed.
, an arterial chamber 28, an autocleaner 11 operated by a signal processing section 22, an arterial chamber 29, and a blood pressure sensor 9 (an output signal is input to the signal processing section 22).
以上の構成において、透析は、患者からの血液
をダイアライザ１の血液回路に連続的に流すと共
に、電磁弁２３及び２４を開、電磁弁２５を閉に
して透析液をダイアライザ１の透析液回路にほぼ
定流量で連続的に流しながら行われる（流路は、
供給ライン２→ダイアライザ１→排出ライン５と
なる）。このとき、信号処理部２２は、オートク
レンメ１１を操作して、TMPを制御して目標と
するUFを得る。 In the above configuration, dialysis is performed by continuously flowing blood from the patient into the blood circuit of the dialyzer 1, and by opening the solenoid valves 23 and 24 and closing the solenoid valve 25 to flow dialysate into the dialysate circuit of the dialyzer 1. This is done while flowing continuously at a nearly constant flow rate (the flow path is
Supply line 2 → dialyzer 1 → discharge line 5). At this time, the signal processing unit 22 operates the auto-cleaner 11 to control the TMP and obtain the target UF.
一方、UFRPの測定は、ダイアライザ１の血液
回路を透析状態に保持すると共に、電磁弁２３及
び２４を閉、電磁弁２５を開にしてダイアライザ
１の透析回路を閉回路（UFRP測定回路）構成に
して行われる。 On the other hand, for UFRP measurement, the blood circuit of the dialyzer 1 is maintained in a dialysis state, the solenoid valves 23 and 24 are closed, and the solenoid valve 25 is opened, and the dialysis circuit of the dialyzer 1 is configured as a closed circuit (UFRP measurement circuit). will be carried out.
この閉回路構成において、透析中と同様に、オ
ートクレンメ１１を操作端とする制御系が動作中
であるため、UFRは設定値通りとなる（ダイア
ライザ１におけるTMPは一定となる）。そして、
ダイアライザ１の閉じられた透析液回路における
透析液圧PD（透析液圧センサ１０の出力信号）
は、第３図に示すように、限外過による液体
（水）により時間ｔと共に高くなる。しかもダイ
アライザ１のUFRPが大きいほど（UFRP1＜
UFRP2＜UFRP3）、透析液圧力PDの上昇速度が
大きくなる。従つて、閉回路構成から一定時間tC
経過後の透析液圧PDi（ｉ＝１，２，３，４）と
UFRPの関係は第４図となる。又、閉回路構成か
ら透析圧が所定の液圧PDCに達するまでの時間tiと
UFRPの関係は第５図となる。 In this closed circuit configuration, as during dialysis, the control system with the autocleaner 11 as the operating end is in operation, so the UFR remains as set (TMP in the dialyzer 1 remains constant). and,
Dialysate pressure P D in the closed dialysate circuit of dialyzer 1 (output signal of dialysate pressure sensor 10)
As shown in FIG. 3, t increases with time t due to the liquid (water) due to ultraviolet rays. Moreover, the larger the UFRP of dialyzer 1 (UFRP 1 <
UFRP 2 < UFRP 3 ), the rate of increase in dialysate pressure P D increases. Therefore, from the closed circuit configuration for a certain time t C
Dialysate pressure P Di (i=1, 2, 3, 4) after elapsed time
The relationship of UFRP is shown in Figure 4. Also, the time t i from the closed circuit configuration until the dialysis pressure reaches the predetermined fluid pressure P DC
The relationship of UFRP is shown in Figure 5.
信号処理部２２にはこのような閉回路構成にし
たときの経過時間に対する透析液圧の変化を表わ
す複数種類のUFRPデータが予め記憶され、一定
時間tC経過後の透析液圧PDiを測定し、第４図の関
係から、時間tCにおいて測定透析液圧PDiとなる
UFRPを特定し、或は、一定透析液圧PDCに達す
るまでの時間tiを測定し、第５図の関係から、測
定時間tiにおいて一定透析液圧PDCとなるUFRPを
特定し、このデータを更新されたUFRP値として
RAMに格納し、透析時、TMP制御に用いる。 The signal processing unit 22 stores in advance multiple types of UFRP data representing changes in dialysate pressure with respect to elapsed time when such a closed circuit configuration is used, and measures dialysate pressure P Di after a certain period of time t C has elapsed. From the relationship shown in Figure 4, the measured dialysate pressure P Di at time t C.
Alternatively, identify the UFRP , measure the time t until reaching a constant dialysate pressure P DC , and from the relationship shown in FIG. This data as updated UFRP value
Stored in RAM and used for TMP control during dialysis.
なお、第２図の実施例装置では、UFRP測定回
路を構成する手段が電磁弁２３，２４，２５によ
つて構成されているが、これらを三方コツク、三
方電磁弁等で構成してもよい。 In the embodiment shown in FIG. 2, the means for configuring the UFRP measuring circuit is composed of solenoid valves 23, 24, and 25, but these may be composed of three-way valves, three-way solenoid valves, etc. .
＜発明の効果＞
本発明によれば、UFRPの測定にチヤンバー、
計量ポンプ等で構成したUFRP測定手段が要らな
いため、人工透析装置の構成を簡単にすることが
でき安価になる。<Effects of the Invention> According to the present invention, a chamber,
Since no UFRP measurement means consisting of a metering pump or the like is required, the configuration of the artificial dialysis device can be simplified and the cost can be reduced.
第１図は従来例を示す構成図、第２図は本発明
の一実施例を示す構成図、第３図乃至第５図は本
発明実施例装置のUFRP測定回路における特性図
である。
１……ダイアライザ、２……透析液回路の供給
ライン、３……透析液供給ポンプ、５……透析液
回路の排出ライン、７……排出先、１０……透析
液圧センサ、１１……オートクレンメ、２１……
操作パネル、２２……信号処理部、２３，２４，
２５……電磁弁。
FIG. 1 is a block diagram showing a conventional example, FIG. 2 is a block diagram showing an embodiment of the present invention, and FIGS. 3 to 5 are characteristic diagrams of the UFRP measuring circuit of the apparatus according to the embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Dialyzer, 2... Supply line of dialysate circuit, 3... Dialysate supply pump, 5... Discharge line of dialysate circuit, 7... Destination, 10... Dialysate pressure sensor, 11... Auto cleanser, 21...
Operation panel, 22... Signal processing section, 23, 24,
25... Solenoid valve.
Claims (1)
透析液回路を閉回路に切換えたときの透析液圧の
変化から求める人工透析装置で、下記Ａ乃至Ｈを
構成要素とすることを特徴とする人工透析装置。 Ａ 血液回路側が血液流入ライン及び血液流出ラ
インを介し患者に接続され、透析液回路側が透
析液供給ライン及び透析液排出ラインに接続さ
れたダイアライザ Ｂ 血液流入ラインに設けられた血液ポンプ Ｃ 血液回路に設けられた血液圧センサ Ｄ 透析液回路に設けられた透析液圧センサ Ｅ 血液流出ラインに設けられ、治療時、血液回
路側の血液圧を変化させ、血液圧と透析液回路
側の透析液圧との差が設定限外過圧と一致す
るように制御されるオートクレンメ Ｆ 透析液供給ラインと透析液排出ラインとの間
に接続されたバイパスライン Ｇ 限外過能測定時、ダイアライザの透析液回
路を閉回路とし透析液をバイパスラインを経て
排出させ、治療時、バイパスラインを閉にしダ
イアライザの透析液回路に透析液を流す回路切
換手段 Ｈ ダイアライザの透析液回路を閉回路にしたと
きの経過時間に対する透析液圧の変化を表わす
複数種類の限外過能データが予め記憶され、
限外過能測定時に、ダイアライザの透析液回
路を閉回路に切換えた後、一定時間経過後に測
定される透析液圧に基づき、この測定値に一致
する限外過能データを選択して限外過能を
特定する手段 ２ ダイアライザの限外過能をダイアライザの
透析液回路を閉回路に切換えたときの透析液圧の
変化から求める人工透析装置で、下記Ａ乃至Ｈを
構成要素とすることを特徴とする人工透析装置。 Ａ 血液回路側が血液流入ライン及び血液流出ラ
インを介し患者に接続され、透析液回路側が透
析液供給ライン及び透析液排出ラインに接続さ
れたダイアライザ Ｂ 血液流入ラインに設けられた血液ポンプ Ｃ 血液回路に設けられた血液圧センサ Ｄ 透析液回路に設けられた透析液圧センサ Ｅ 血液流出ラインに設けられ、治療時、血液回
路側の血液圧を変化させ、血液圧と透析液回路
側の透析液圧との差が設定限外過圧と一致す
るように制御されるオートクレンメ Ｆ 透析液供給ラインと透析液排出ラインとの間
に接続されたバイパスライン Ｇ 限外過能測定時、ダイアライザの透析液回
路を閉回路とし透析液をバイパスラインを経て
排出させ、治療時、バイパスラインを閉にしダ
イアライザの透析液回路に透析液を流す回路切
換手段 Ｈ ダイアライザの透析液回路を閉回路にしたと
きの経過時間に対する透析液圧の変化を表わす
複数種類の限外過能データが予め記憶され、
限外過能測定時に、ダイアライザの透析液回
路を閉回路に切換えた後、透析液圧が一定値に
達するまでの経過時間を測定し、この測定値に
一致する限外過能データを選択して限外過
能を特定する手段[Scope of Claims] 1. An artificial dialysis device in which the ultraperformance of a dialyzer is determined from the change in dialysate pressure when the dialysate circuit of the dialyzer is switched to a closed circuit, which comprises the following components A to H. Features of artificial dialysis equipment. A. A dialyzer whose blood circuit side is connected to the patient via a blood inflow line and a blood outflow line, and a dialyzer whose dialysate circuit side is connected to a dialysate supply line and a dialysate discharge line. B. A blood pump installed in the blood inflow line. C. To the blood circuit. A blood pressure sensor D provided in the dialysate circuit A dialysate pressure sensor E provided in the dialysate circuit A dialysate pressure sensor E provided in the blood outflow line, which changes the blood pressure on the blood circuit side during treatment, and changes the blood pressure and the dialysate pressure in the dialysate circuit. An auto-cleaner F that is controlled so that the difference between Circuit switching means H that makes the circuit a closed circuit and discharges the dialysate via the bypass line, and during treatment, closes the bypass line and allows the dialysate to flow into the dialysate circuit of the dialyzer. Progress when the dialysate circuit of the dialyzer is made a closed circuit. Multiple types of ultracapacity data representing changes in dialysate pressure with respect to time are stored in advance,
When measuring ultra-high performance, select ultra-high performance data that matches this measured value based on the dialysate pressure measured after a certain period of time has passed after switching the dialyzer's dialysate circuit to a closed circuit. Means for identifying hypercapacity 2 The ultracapacity of a dialyzer is determined from the change in dialysate pressure when the dialysate circuit of the dialyzer is switched to a closed circuit.In an artificial dialysis device, the following components A to H are used. Features of artificial dialysis equipment. A. A dialyzer whose blood circuit side is connected to the patient via a blood inflow line and a blood outflow line, and a dialyzer whose dialysate circuit side is connected to a dialysate supply line and a dialysate discharge line. B. A blood pump installed in the blood inflow line. C. To the blood circuit. A blood pressure sensor D provided in the dialysate circuit A dialysate pressure sensor E provided in the dialysate circuit A dialysate pressure sensor E provided in the blood outflow line, which changes the blood pressure on the blood circuit side during treatment, and changes the blood pressure and the dialysate pressure in the dialysate circuit. An auto-cleaner F that is controlled so that the difference between Circuit switching means H that makes the circuit a closed circuit and discharges the dialysate via the bypass line, and during treatment, closes the bypass line and allows the dialysate to flow into the dialysate circuit of the dialyzer. Progress when the dialysate circuit of the dialyzer is made a closed circuit. Multiple types of ultracapacity data representing changes in dialysate pressure with respect to time are stored in advance,
When measuring ultracapacity, after switching the dialyzer's dialysate circuit to a closed circuit, measure the elapsed time until the dialysate pressure reaches a certain value, and select the ultracapacity data that matches this measured value. means to identify ultrapotency
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59011592A JPS60156470A (en) | 1984-01-25 | 1984-01-25 | Artificial dialytic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59011592A JPS60156470A (en) | 1984-01-25 | 1984-01-25 | Artificial dialytic apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60156470A JPS60156470A (en) | 1985-08-16 |
| JPH0212111B2 true JPH0212111B2 (en) | 1990-03-19 |
Family
ID=11782172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59011592A Granted JPS60156470A (en) | 1984-01-25 | 1984-01-25 | Artificial dialytic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60156470A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60236660A (en) * | 1984-05-10 | 1985-11-25 | 横河電機株式会社 | Artificial dialytic apparatus |
-
1984
- 1984-01-25 JP JP59011592A patent/JPS60156470A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60156470A (en) | 1985-08-16 |
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