JPS60156470A - Artificial dialytic apparatus - Google Patents

Artificial dialytic apparatus

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Publication number
JPS60156470A
JPS60156470A JP59011592A JP1159284A JPS60156470A JP S60156470 A JPS60156470 A JP S60156470A JP 59011592 A JP59011592 A JP 59011592A JP 1159284 A JP1159284 A JP 1159284A JP S60156470 A JPS60156470 A JP S60156470A
Authority
JP
Japan
Prior art keywords
dialysate
circuit
ufrp
dialyzer
ultrafiltration
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.)
Granted
Application number
JP59011592A
Other languages
Japanese (ja)
Other versions
JPH0212111B2 (en
Inventor
邦治 鬼村
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric 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 Yokogawa Hokushin Electric Corp filed Critical Yokogawa Hokushin Electric Corp
Priority to JP59011592A priority Critical patent/JPS60156470A/en
Publication of JPS60156470A publication Critical patent/JPS60156470A/en
Publication of JPH0212111B2 publication Critical patent/JPH0212111B2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 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
濾過能をめるようにした人工透析装置に関する。
[Detailed description of the invention] [Technical field to which the invention pertains] The present invention provides a system in which the dialysate circuit in a dialyzer during dialysis is configured as a closed circuit, and the ultrafiltration capacity is adjusted based on the dialysate pressure signal at this time. related to artificial dialysis equipment.

〔従来技術〕[Prior art]

周知のように、人工透析装置のダイアライザにおける限
外濾過能(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、っても、患者が
異なると岳も異なる。このため、UFRPを基準にして
所定の限外濾過を行う人工透析装置にあっては、定期的
に、又は、必要に応じてUFRPの測定を行っている。
As is well known, the ultrafiltration capacity (hereinafter referred to as UFRP) of a dialyzer in an artificial dialysis machine differs from one dialyzer to another, and even if dialysis continues, the ultrafiltration capacity (hereinafter referred to as UFRP) also differs for different patients. Therefore, in an artificial dialysis apparatus that performs a predetermined ultrafiltration based on UFRP, UFRP is measured periodically or as needed.

従来、この種の人工透析装置として、例えば、特開昭5
6−84(306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。上記装置のダイアライザ
1における透析液回路は、第1図に示すように、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
方コック)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、所定の処理をして得るトランスメ
ンブレン圧(以下、TMPと言う)と設定値との差を零
にする信号をオートクレンメ11に出力する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
点滴筒形式のチャンバー13と、計量ポンプ14(ロー
ラポンプ)と、チャンバー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
するようになっている。
Conventionally, as this type of artificial dialysis device, for example,
6-84 (An artificial dialysis device using a positive pressure pump is disclosed in Publication No. 306. The dialysate circuit in the dialyzer 1 of the device is installed in the supply line 2 as shown in FIG. A dialysate supply pump 3, a channel opening/closing means 4 (electromagnetic valve), and a metering line 6, including a discharge line 5, which will be described later.
, or a flow path switching means 8 (three-way cock) connected to the dialysate discharge destination 7, a blood pressure sensor 9, and a dialysate pressure sensor 10.
a TMP calculation circuit 12 which outputs a signal to the autocleaner 11 that makes the difference between the transmembrane pressure (hereinafter referred to as TMP) obtained through predetermined processing and the set value zero; It includes a timing circuit (not shown) that controls the operation timing of the opening/closing means 4 and the flow path switching means 8. The metering line 6 includes a chamber 13 in the form of a drip cylinder whose air chamber is open to the outside air, a metering pump 14 (roller pump), and a liquid line that outputs a signal to the metering pump 14 to maintain the liquid level in the chamber 13 at a constant value. It consists of a surface sensor (not shown). 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とを連通ずる位
置にして行われる。このとき、TMP Hl算回路12
の動作により、TMPは設定値通シに制御されるので、
ダイアライザ1において、設定TMPに対応した限外濾
過が継続して行われる。
In the above configuration, dialysis is performed by opening the channel opening/closing means 4 and placing the channel switching means 8 in a position where the discharge line 5 and the discharge destination 7 are communicated with each other. At this time, the TMP Hl calculation circuit 12
The TMP is controlled through the set value by the operation of
In the dialyzer 1, ultrafiltration corresponding to the set TMP is continuously performed.

一方、UFItP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と計部ライン6とを連通ずる
位置にして行われる(チャンバー13内は外気と連辿状
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に対応した限外濾過が継続
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、チャンバ−13に流入し、液面センサ
を含む制御系によって操作される3F量ポンプ14によ
り排出される。
On the other hand, the measurement of UFItP is carried out by closing the flow path opening/closing means 4 and placing the flow path switching means 8 in a position where the discharge line 5 and metering line 6 are in communication (the inside of the chamber 13 is in continuous contact with the outside air). ). At this time as well, the TMP is controlled according to the set value by the operation of the TMP calculation circuit 12, so that the dialyzer 1 continues to perform ultrafiltration corresponding to the set TMP. The liquid in the discharge line 5 is led to the metering line 6, flows into the chamber 13, and is discharged by a 3F volume pump 14 operated by a control system including a liquid level sensor.

これによシ、チャンバー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の吐出け(排出量)か
ら限外濾過量(以下、UFと言う)をめると共に、計量
ポンプ14の動作時間から限外濾過率(以下、UFRと
言う)を算出する。そして、このときのTMPからUF
RP (=UFR/TMP )を演算し1以下、このU
FRPを基準にして所定の限外濾過を行うO しかし、従来の人工透析装置にあっては、液面センサを
有するチャンバー、計量ポンプ等でUFRPを測定する
手段を構成しているため、装置が蝮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。
As a result, the liquid level in the chamber 13 is kept constant, and the amount of ultrafiltration (hereinafter referred to as UF) can be calculated from the discharge (discharge amount) of the metering pump 14 at this time. The ultrafiltration rate (hereinafter referred to as UFR) is calculated from the operating time of 14. And from TMP at this time UF
Calculate RP (=UFR/TMP) and if it is less than 1, this U
A predetermined ultrafiltration is performed based on FRP. However, in conventional artificial dialysis equipment, the means for measuring UFRP is comprised of a chamber with a liquid level sensor, a metering pump, etc. There are problems in that it has a complicated structure and is expensive (pumps are generally expensive).

〔発明の目的〕[Purpose of the invention]

本発明は、かかる点に鑑みてなされたものであシ、その
目的は、構成が簡単で、かつ、安価な人工透析装置を提
供するにある。
The present invention has been made in view of these points, and its purpose is to provide an artificial dialysis device that is simple in construction and inexpensive.

〔発明の構成〕[Structure of the invention]

上記目的を達成する本発明の人工透析装置は、ダイアラ
イザにおける血液圧信号と透析液圧信号を入力し所定の
処理をして血液回路の圧力を操作し、予め定めた限外濾
過率を得る手段と、定期的、又は、必要に応じてダイア
ライザにおける透析液回路を閉回路構成とする手段と、
該透析液回路が閉回路構成のとき、透析液圧信号に基づ
き限外濾過能をめる手段とで構成される。
The artificial dialysis apparatus of the present invention that achieves the above object is a means for inputting a blood pressure signal and a dialysate pressure signal in a dialyzer, performing predetermined processing, manipulating the pressure of a blood circuit, and obtaining a predetermined ultrafiltration rate. and means for periodically or as needed to configure the dialysate circuit in the dialyzer into a closed circuit configuration;
When the dialysate circuit has a closed circuit configuration, the dialysate circuit includes means for adjusting ultrafiltration capacity based on the dialysate pressure signal.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明について図面を参照して説明する。 Hereinafter, the present invention will be explained with reference to the drawings.

第2図は、本発明の一実施例を示す構成図であシ、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。この実施例の装置は、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からの信月を入力し、所定の処理を
して周辺機器を操作するマイクロコンピュータから成る
信号処理部22とで構成される。信号処理部22のRO
M Kは、血液圧センサ9及び透析液圧センサ−0の出
力信号が入力されたとき、所定の処理をしてTMPをめ
、これと操作パネル21からの設定値(所望のUFR)
との差を零にする信号をオートク七ンメ11に出力する
プログラムと、定期的、又は、操作パネル21から指令
が与えられたとき、UFRP測定回路(後述する電磁弁
を操作して構成される閉じられた透析液回路)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
センサ−0による信号を入力し、予めめたUFRP−P
 特性(P ・・・UFRp測定回路構Di Di 成を時間後の透析液圧)、又は、UFRP−t□特性(
t・・・UFRP測定回路構成後、透析液圧pDが一定
値p となる時間)に基づきUFRPをめるプロゲラc ムが格納されている。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υ操作される
電磁弁25を有するバイノくスライン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、動脈チャンバー28と、信号処理部
22によシ操作されるオートクレンメ11と、静脈チャ
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。
FIG. 2 is a configuration diagram showing one embodiment of the present invention.
The same symbols as in the figures are used with the same meaning. The device of this embodiment inputs signals from the dialyzer 1 and its peripheral devices, signals from the peripheral devices, and a signal from the operation panel 21 for setting the UFR, performs predetermined processing, and operates the peripheral devices. The signal processing section 22 is composed of a microcomputer. RO of signal processing section 22
When the output signals of the blood pressure sensor 9 and the dialysate pressure sensor 0 are input, the MK performs predetermined processing to determine the TMP, and calculates this and the setting value (desired UFR) from the operation panel 21.
A program that outputs a signal that makes the difference between A program constituting a closed dialysate circuit) and a signal from the dialysate pressure sensor-0 in the UFRP measuring circuit are input, and the UFRP-P
Characteristics (P...dialysate pressure after UFRp measurement circuit configuration Di Di configuration) or UFRP-t□ characteristics (
A program c.times.t...time for which the dialysate pressure pD reaches a constant value p.sub.2 after configuring the UFRP measuring circuit) is stored. The dialysate circuit of dialyzer 1 is
A supply line 2 having a dialysate supply pump 3 rotating at a constant speed, a solenoid valve 23 operated by a signal processing section 22, and a dialysing fluid pressure sensor 10 (an output signal is input to the signal processing section 22), and a signal processing section. The discharge line 5 has a solenoid valve 24 operated by the signal processing section 22, and the binocular exhaust line 26 has 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 the signal processing section 22, a venous chamber 29, and a blood pressure sensor 9 (which outputs 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)。
In the above configuration, dialysis is performed by continuously flowing blood from the patient into the blood circuit of the dialyzer 1, and by using the solenoid valve 23.
and 24 are opened, and the electromagnetic valve 25 is closed, and the dialysate is continuously flowed at a substantially constant flow rate into the dialysate circuit of the dialyzer 1 (the flow path is from the supply line 2 to the dialyzer 1 to the discharge line 5). ).

このとき、信号処理部22ハ、オートクレンメ11を操
作して、透析中のUFRを所定の値にする(オートクレ
ンメでTMPを制御することによって所定のUFRが得
られる)。
At this time, the signal processing unit 22c operates the autocleaner 11 to set the UFR during dialysis to a predetermined value (the predetermined UFR is obtained by controlling TMP with the autocleaner).

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、N磁弁23及び24を閉、
電磁弁25を閉にしてダイアライザ1の透析液回路を閉
回路(UFRP測定回路)構成にして行われる。
On the other hand, to measure UFRP, the blood circuit of the dialyzer 1 is maintained in a dialysis state, and the N magnetic valves 23 and 24 are closed.
The electromagnetic valve 25 is closed and the dialysate circuit of the dialyzer 1 is configured as a closed circuit (UFRP measurement circuit).

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、U
FRは設定値通シとなる。(ダイアライザ1におけるT
Mp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P(透析液圧センサの
出力信号)は、第6図り に示すように、限外濾過による液体tnによシ時間tと
ともに高くなる。しかも、ダイアライザ1のUFRPが
大きいほど(UFRP <UFRP2<UFRP3<U
FRP L透析液圧力pの上昇速度が大きくなる。
In this closed circuit configuration, as during dialysis, the control system with the autocleaner 11 as the operating end is in operation, so the U
FR is set to the same value. (T in dialyzer 1
Mp remains constant). As shown in Figure 6, the dialysate pressure P (output signal of the dialysate pressure sensor) in the closed dialysate circuit of the dialyzer 1 increases with time t due to the ultrafiltration of the liquid tn. Moreover, the larger the UFRP of dialyzer 1 (UFRP < UFRP2 < UFRP3 < U
The rate of increase in FRP L dialysate pressure p increases.

4 D 従って、閉回路構成から一定時間を経過後の透析液圧P
D□(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液圧が所定の液圧
P に達するまでの時間t (!:UFRPの関係は第
5図Dc i となる。
4 D Therefore, the dialysate pressure P after a certain period of time from the closed circuit configuration
The relationship between D□ (i=1.2, 3.4) and UFRP is shown in Figure 4. Also, the time t (!: UFRP) until the dialysate pressure reaches the predetermined fluid pressure P from the closed circuit configuration is shown in FIG. 5 Dc i .

そこで、信号処理部22はN UFRP測定回路におけ
る、上記液圧P (透析液圧センサ−oの出力信号人1 又は、時間t、を計測し、第4図、又は、第5図の特性
に基づきUFRPをめ、これを更新されたUFRP値と
してRAMに格納する。このように% UFRPは)透
析液圧P 1又は、時間t□からめられるO1 岡、本発明は、UFRP測定回路を構成する手段を上記
実施例に限定するものではなく、三方コック、三方電磁
弁等で構成してもよい。
Therefore, the signal processing unit 22 measures the fluid pressure P (output signal of dialysis fluid pressure sensor o or time t) in the NUFRP measuring circuit, and calculates the characteristic as shown in FIG. 4 or FIG. The UFRP is determined based on the UFRP and is stored in the RAM as an updated UFRP value.In this way, the % UFRP is determined from the dialysate pressure P1 or the time t□O1.The present invention constitutes a UFRP measurement circuit. The means are not limited to the above embodiments, and may be configured with a three-way cock, a three-way solenoid valve, or the like.

〔発明の効果〕〔Effect of the invention〕

以上説明した通シ、本発明の人工透析装置によれば、透
析中のダイアライザにおける透析液圧回路を閉回路構成
とし、このときの透析液圧信号を入力し、UFRP−P
 特性)又は%UFnP−t 特性に基D1 1 づきUFRPをめるため、UFを計量するポンプ等を必
要としない。このため、装置が簡単な構成で、かつ、安
価になる。
As described above, according to the artificial dialysis apparatus of the present invention, the dialysate pressure circuit in the dialyzer during dialysis has a closed circuit configuration, and the dialysate pressure signal at this time is input, and the UFRP-P
Since the UFRP is calculated based on the D1 1 property or the %UFnP-t property, a pump or the like for measuring UF is not required. Therefore, the device has a simple configuration and is inexpensive.

【図面の簡単な説明】[Brief explanation of the drawing]

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、本発明の一
実施例の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、6・・・排出先、1o・・・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、23,2幻25・・・電磁弁
。 第1図 第Z図
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 a UFRP measurement circuit according to an embodiment of the present invention. It is. DESCRIPTION OF SYMBOLS 1... Dialyzer, 2... Supply line of dialysate circuit, 3... Dialysate supply pump, 5... Discharge line of dialysate circuit, 6... Destination, 1o... Dialysate Pressure sensor, 11...Auto cleanser, 21...Operation panel, 22...Signal processing unit, 23,2 illusion 25...Solenoid valve. Figure 1 Figure Z

Claims (1)

【特許請求の範囲】[Claims] ダイアライザにおける血液圧信号と透析液圧信号を入力
し所定の処理をして血液回路の圧力を操作し、予め定め
た限外濾過率を得る手段と、定期的、又は、必要に応じ
てダイアライザにおける透析液回路を閉回路構成とする
手段と、該透析液回路が閉回路構成のとき、透析液圧信
号に基づき限外濾過能をめる手段とを備えることを特徴
とする人工透析装置。
Means for inputting the blood pressure signal and dialysate pressure signal in the dialyzer and performing predetermined processing to manipulate the pressure of the blood circuit to obtain a predetermined ultrafiltration rate, An artificial dialysis apparatus comprising means for configuring a dialysate circuit into a closed circuit configuration, and means for adjusting ultrafiltration performance based on a dialysate pressure signal when the dialysate circuit is in a closed circuit configuration.
JP59011592A 1984-01-25 1984-01-25 Artificial dialytic apparatus Granted JPS60156470A (en)

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 true JPS60156470A (en) 1985-08-16
JPH0212111B2 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)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPH0212111B2 (en) 1990-03-19

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