JPS639321Y2 - - Google Patents
Info
- Publication number
- JPS639321Y2 JPS639321Y2 JP1466483U JP1466483U JPS639321Y2 JP S639321 Y2 JPS639321 Y2 JP S639321Y2 JP 1466483 U JP1466483 U JP 1466483U JP 1466483 U JP1466483 U JP 1466483U JP S639321 Y2 JPS639321 Y2 JP S639321Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- liquid level
- measuring container
- liquid
- opened
- 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
- 239000007788 liquid Substances 0.000 claims description 55
- 238000005259 measurement Methods 0.000 claims description 11
- 238000000502 dialysis Methods 0.000 claims description 8
- 238000000108 ultra-filtration Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000000385 dialysis solution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
Description
【考案の詳細な説明】
本考案は、人工透析装置に関するものであつ
て、詳しくは、ダイアライザーの限外濾過能力を
測定するために設けられている計量容器を装置か
ら取り外すことなくその容積測定が簡単かつ正確
に行えるようにしたものである。[Detailed Description of the Invention] The present invention relates to an artificial dialysis device, and more specifically, it is possible to measure the volume of a measuring container provided for measuring the ultrafiltration capacity of a dialyzer without removing it from the device. It is designed to be easy and accurate.
人工透析装置の一種に、ダイアライザーの限外
濾過能力（以下UFRPという）を間欠的に測定
し、その結果に基づいて血液中の水分の除去量
（以下除水量という）を制御するように構成され
たものがある。このようなUFRPの測定にあたつ
ては、例えば装置に予め計量検定された計量容器
を設けておいてこの計量容器に限外濾過された透
析液を溜めるようにし、透析液が所定量（例えば
15c.c.）になるまでの時間を測定することが行われ
ている。すなわち、このような装置では、計量容
器の容積が変化すると、UFRPの測定誤差を生じ
ることになり、正しい除水量制御が行われないこ
とになる。しかし、計量容器の容積は、長時間の
透析による透析液中の成分の付着や分解清掃後の
計量容器の組立具合などにより変化することがあ
り、適宜計量容器の容積を測定することが望まし
い。 A type of artificial dialysis machine is configured to intermittently measure the ultrafiltration capacity (hereinafter referred to as UFRP) of a dialyzer and control the amount of water removed from the blood (hereinafter referred to as water removal amount) based on the results. There is something. When measuring UFRP, for example, the device is equipped with a measuring container that has been calibrated in advance, and the ultrafiltered dialysate is stored in this measuring container.
15 c.c.). That is, in such a device, if the volume of the measuring container changes, a measurement error of UFRP will occur, and the amount of water removed will not be controlled correctly. However, the volume of the measuring container may change depending on the adhesion of components in the dialysate due to long-term dialysis, the assembly condition of the measuring container after disassembly and cleaning, etc., and it is desirable to measure the volume of the measuring container as appropriate.
ところが、従来のこのような装置では、計量容
器を装置に組み込んだ実装状態での容積測定は考
慮されていないので、容積測定時には計量容器を
装置から取り外さなければならず、相当の工数を
要することになり、装置を使用する現場での容積
測定は困難である。 However, such conventional devices do not take into account volume measurement when the measuring container is installed in the device, so the measuring container must be removed from the device when measuring volume, which requires a considerable amount of man-hours. This makes it difficult to measure volume on-site using equipment.
本考案は、このような従来の欠点を解決したも
ので、人工透析装置に透析液の流れを開閉制御す
るための複数個の開閉弁を組み込み、計量容器の
容積測定時にはこれら複数個の開閉弁を開閉制御
して計量容器に設けられた液位検知手段で計量さ
れた所定量の計量容器内の液を別途設けた液量測
定手段に加えるようにしたものである。 The present invention solves these conventional drawbacks by incorporating multiple on-off valves into an artificial dialysis machine to control the opening and closing of the flow of dialysate, and when measuring the volume of a measuring container, these multiple on-off valves are used to control the flow of dialysate. A predetermined amount of liquid in the measuring container measured by a liquid level detecting means provided in the measuring container is added to a separately provided liquid amount measuring means by controlling the opening and closing of the measuring container.
以下、図面を用いて詳細に説明する。 Hereinafter, it will be explained in detail using the drawings.
図面は、本考案の一実施例を示す構成説明図で
あり、１はダイアライザー、２は計量容器、３，
４は液位検知器、５〜８は開閉弁、９は液流れ検
出器、１０は逆止弁、１１は三方コツク、１２は
液量測定器、１３は制御部、１４はモード切換ス
イツチ、１５はトリガースイツチ、１６はバイパ
スカプラー、INは透析液の流入口、OUTは液排
出口である。 The drawing is a configuration explanatory diagram showing one embodiment of the present invention, in which 1 is a dialyzer, 2 is a measuring container, 3,
4 is a liquid level detector, 5 to 8 are on-off valves, 9 is a liquid flow detector, 10 is a check valve, 11 is a three-way cock, 12 is a liquid amount measuring device, 13 is a control unit, 14 is a mode changeover switch, 15 is a trigger switch, 16 is a bypass coupler, IN is a dialysate inlet, and OUT is a fluid outlet.
ダイアライザー１は限外濾過機能を有するもの
であつて、透析液及び透析対象である血液が加え
られる。計量容器２は透析液を計量するものであ
つて、ほぼ垂直方向に配置されている。この計量
容器２の上部には液位L1を検知して液位検知信
号を送出する液位検知器３が設けられ、下部には
液位L2を検知して液位検知信号を送出する液位
検知器４が設けられている。このような液位検知
器３，４としては、例えば超音波素子が対向配置
されたものを用いる。なお、ダイアライザー１の
透析液流出口は計量容器２の下端に接続されてい
る。計量容器２の上端は液排出口OUTに接続さ
れると共に逆止弁１０を介して大気に連通されて
いる。開閉弁５は、流入口INに接続されている。
開閉弁６は本考案における第１の開閉弁として用
いられ、開閉弁７は本考案における第２の開閉弁
として用いられ、開閉弁８は本考案における第３
の開閉弁として用いられるものである。開閉弁
６，７は開閉弁５の流出口に接続されている。開
閉弁６の流出口はダイアライザー１の透析液の流
入口に接続され、開閉弁７の流出口は液排出口
OUTに接続されている。なお、開閉弁５と開閉
弁６，７の間には開閉弁５から流出する透析液の
有無を検知する液流れ検出器９が設けられてい
る。開閉弁８は計量容器内の透析液の流出を開閉
制御するものであつて、流入口は計量容器２の下
端に接続され、流出口は三方コツク１１の流入口
に接続されている。三方コツク１１は開閉弁８か
ら流出する液の流路を装置の動作に応じて排出口
OUT又は液量測定器１２に切り換えるものであ
る。液量測定器１２は開閉弁８及び三方コツク１
１を介して加えられる計量容器内の透析液を計量
するものであり、メスシリンダーや重量測定装置
を用いる。制御部１３は装置全体の動作を関連づ
けて制御するものであり、例えばマイクロプロセ
ツサーを用いる。制御部１３には液位検知器３，
４の出力信号、液流れ検出器９の出力信号などが
加えられ、開閉弁６〜８を開閉制御する制御信号
などが送出される。また、この制御部１３にはモ
ード切換スイツチ１４やトリガースイツチ１５が
設けられている。モード切換スイツチ１４は装置
の動作モードを通常運転モードと計量容器２の容
積測定モードとに切換設定するための信号を制御
部１３に送出する。トリガースイツチ１５は容積
測定モードにおいて開閉弁８を開かせるためのト
リガー信号を制御部１３に送出する。このトリガ
ースイツチ１５としては、別途独立したスイツチ
を設けてもよいし、あるいは、例えば通常運転モ
ード時に警報ブザーの動作を停止させるスイツチ
のように手動操作できるスイツチを共用してもよ
い。バイパスカプラー１６はダイアライザー１を
透析液回路に接続しない時にダイアライザー１の
代わりに透析液回路を接続するものである。 The dialyzer 1 has an ultrafiltration function, and dialysate and blood to be dialyzed are added thereto. The measuring container 2 is for measuring the dialysate and is arranged in a substantially vertical direction. A liquid level detector 3 is installed in the upper part of this measuring container 2 to detect the liquid level L 1 and send out a liquid level detection signal, and in the lower part to detect the liquid level L 2 and send out a liquid level detection signal. A liquid level detector 4 is provided. As such liquid level detectors 3 and 4, for example, those in which ultrasonic elements are arranged facing each other are used. Note that the dialysate outlet of the dialyzer 1 is connected to the lower end of the measuring container 2. The upper end of the measuring container 2 is connected to a liquid outlet OUT and communicated with the atmosphere via a check valve 10. The on-off valve 5 is connected to the inlet IN.
The on-off valve 6 is used as the first on-off valve in the present invention, the on-off valve 7 is used as the second on-off valve in the present invention, and the on-off valve 8 is used as the third on-off valve in the present invention.
It is used as an on-off valve. The on-off valves 6 and 7 are connected to the outlet of the on-off valve 5. The outlet of the on-off valve 6 is connected to the dialysate inlet of the dialyzer 1, and the outlet of the on-off valve 7 is connected to the fluid outlet.
Connected to OUT. Note that a liquid flow detector 9 is provided between the on-off valve 5 and the on-off valves 6 and 7 to detect the presence or absence of dialysate flowing out from the on-off valve 5. The on-off valve 8 controls the opening and closing of the outflow of the dialysate in the metering container, and has an inlet connected to the lower end of the metering container 2, and an outlet connected to the inlet of the three-way pot 11. The three-way pot 11 connects the flow path of the liquid flowing out from the on-off valve 8 to an outlet depending on the operation of the device.
It is used to switch to OUT or liquid level measuring device 12. The liquid level measuring device 12 has an on-off valve 8 and a three-way cock 1
This method uses a graduated cylinder or a weight measuring device to measure the dialysate in the measuring container that is added through the measuring tube. The control section 13 controls the operation of the entire apparatus in association with each other, and uses, for example, a microprocessor. The control unit 13 includes a liquid level detector 3,
4, the output signal of the liquid flow detector 9, etc. are added, and control signals for controlling the opening and closing of the on-off valves 6 to 8 are sent out. The control section 13 is also provided with a mode changeover switch 14 and a trigger switch 15. The mode changeover switch 14 sends a signal to the control section 13 for switching the operating mode of the device between the normal operation mode and the volume measurement mode of the measuring container 2. The trigger switch 15 sends a trigger signal to the control unit 13 to open the on-off valve 8 in the volume measurement mode. As the trigger switch 15, a separate independent switch may be provided, or a manually operable switch such as a switch that stops the operation of an alarm buzzer in the normal operation mode may be used. The bypass coupler 16 connects the dialysate circuit instead of the dialyzer 1 when the dialyzer 1 is not connected to the dialysate circuit.
このように構成された装置の動作について説明
する。 The operation of the device configured in this way will be explained.
通常運転モードでは、ダイアライザー１を透析
液回路に接続し、ダイアライザー１には血液回路
を接続する。そして、開閉弁５，６を開き、開閉
弁７，８を閉じる。これにより、透析液は流入口
IN→開閉弁５→開閉弁６→ダイアライザー１→
計量容器２→液排出口OUTよりなる経路を流れ
ることになり、透析動作が行われることになる。
この通常運転モードでは、UFRPの測定も行われ
る。UFRPの測定にあたつては、開閉弁６を閉じ
て開閉弁７，８を開き、透析液を開閉弁７を介し
てバイパスさせる。これにより、計量容器２内の
液はその位置ヘツドと逆止弁１０の作用により開
閉弁８を通して排出され、計量容器２の中は空に
なる。その後、開閉弁８を閉じ、ダイアライザー
１により限外濾過された透析液を計量容器２に溜
める。一方、制御部１３にはL2〜L1間の容積値
Ｖを入力しておき、透析液がL2〜L1間に溜まる
のに要する時間Ｔ及び限外濾過圧Ｐを測定する。
そして、次式により、UFRPを算出する。 In the normal operating mode, the dialyzer 1 is connected to the dialysate circuit, and the dialyzer 1 is connected to the blood circuit. Then, the on-off valves 5 and 6 are opened, and the on-off valves 7 and 8 are closed. This allows the dialysate to flow through the inlet
IN → On-off valve 5 → On-off valve 6 → Dialyzer 1 →
It will flow through the path consisting of the measuring container 2 → the liquid outlet OUT, and the dialysis operation will be performed.
In this normal operation mode, UFRP measurements are also performed. When measuring UFRP, on-off valve 6 is closed, on-off valves 7 and 8 are opened, and the dialysate is bypassed via on-off valve 7. As a result, the liquid in the measuring container 2 is discharged through the on-off valve 8 by the action of the position head and the check valve 10, and the inside of the measuring container 2 becomes empty. Thereafter, the on-off valve 8 is closed, and the dialysate ultrafiltered by the dialyzer 1 is stored in the measuring container 2. On the other hand, the volume value V between L 2 and L 1 is input to the control unit 13, and the time T and ultrafiltration pressure P required for the dialysate to accumulate between L 2 and L 1 are measured.
Then, UFRP is calculated using the following formula.
UFRP＝（Ｖ／Ｔ・Ｐ）
なお、このようなUFRPの測定は、制御部１３
に予め組み込んだプログラムにより、自動的に行
わせることができる。 UFRP=(V/T・P) Note that such UFRP measurement is performed by the control unit 13.
This can be done automatically using a pre-installed program.
次に、容積測定動作について説明する。容積測
定時には、モード切換スイツチ１４を容積測定モ
ードに切り換えると共にダイアライザー１の代わ
りにバイパスカプラー１６を接続する。開閉弁５
が閉じられている状態から開閉弁５を開くと、液
流れ検出器９が透析液の流れを検出する。これに
より、開閉弁６は開かれて開閉弁７，８は閉じら
れ、計量容器２内に透析液が流れ込む。計量容器
２内にL1レベル以上の透析液が溜まつたら開閉
弁５を閉じる。開閉弁５を閉じると液流れ検出器
９は透析液の流れが止まつたことを検出し、開閉
弁７は開かれて開閉弁６，８は閉じられ、計量容
器２内にL1レベル以上の透析液が溜まつたまま
となる。その後、トリガースイツチ１５を操作し
て開閉弁８を開く。開閉弁８は、計量容器２内の
液位がL1レベルになる時点t1で、液位検知器３の
出力信号に基づいて閉じられる。この状態で三方
コツク１１を操作し、開閉弁８の流出口を液量測
定器１２に接続する。そして、再びトリガースイ
ツチ１５を操作して開閉弁８を開く。開閉弁８
は、計量容器２内の液位がL2レベルになる時点t2
で、液位検知器４の出力信号に基づいて閉じられ
る。このような時間t2−t1の間に液量測定器１２
に流入した透析液が計量容器２の設定された容積
に対応したものとなり、液量測定器１２で計量容
器２の設定された容積を測定することができ、計
量容器２の容積変化量を求めることができる。ま
た、このような測定結果に基づいて制御部１３に
設定されている計量容器２の容積設定値を変更す
ることにより計量容器の容積変化が補償でき、
UFRPの測定誤差を生じることなく正しい除水量
制御を行う人工透析装置が実現できる。 Next, the volume measurement operation will be explained. When measuring the volume, the mode changeover switch 14 is switched to the volume measurement mode, and the bypass coupler 16 is connected instead of the dialyzer 1. Open/close valve 5
When the on-off valve 5 is opened from the closed state, the liquid flow detector 9 detects the flow of dialysate. As a result, the on-off valve 6 is opened, the on-off valves 7 and 8 are closed, and the dialysate flows into the measuring container 2. When the dialysate reaches the L1 level or higher in the measuring container 2, the on-off valve 5 is closed. When the on-off valve 5 is closed, the liquid flow detector 9 detects that the flow of dialysate has stopped, the on-off valve 7 is opened, and the on-off valves 6 and 8 are closed, so that the level of L 1 or higher is in the measuring container 2. Dialysate remains accumulated. Thereafter, the trigger switch 15 is operated to open the on-off valve 8. The on-off valve 8 is closed based on the output signal of the liquid level detector 3 at time t1 when the liquid level in the measuring container 2 reaches the L1 level. In this state, operate the three-way pot 11 to connect the outlet of the on-off valve 8 to the liquid level measuring device 12. Then, the trigger switch 15 is operated again to open the on-off valve 8. Open/close valve 8
is the time t 2 when the liquid level in the measuring container 2 reaches the L 2 level.
and is closed based on the output signal of the liquid level detector 4. During such time t 2 −t 1 , the liquid level measuring device 12
The dialysate flowing into the dialysis fluid corresponds to the set volume of the measuring container 2, and the set volume of the measuring container 2 can be measured with the liquid volume measuring device 12, and the amount of change in the volume of the measuring container 2 is determined. be able to. Further, by changing the volume setting value of the measuring container 2 set in the control unit 13 based on such measurement results, changes in the volume of the measuring container can be compensated for.
It is possible to realize an artificial dialysis device that correctly controls the amount of water removed without causing UFRP measurement errors.
以上説明したように、本考案によれば、ダイア
ライザーの限外濾過能力を測定するために設けら
れている計量容器を装置から取り外すことなくそ
の容積測定が適宜現場においても簡単かつ正確に
行うことができ、実用上の効果は大きい。 As explained above, according to the present invention, the volume of the measuring container provided for measuring the ultrafiltration capacity of the dialyzer can be easily and accurately measured in the field without removing it from the device. It can be done, and the practical effects are great.
図面は本考案の一実施例を示す構成説明図であ
る。
１……ダイアライザー、２……計量容器、３，
４……液位検知器、５〜８……開閉弁、９……液
流れ検出器、１０……逆止弁、１１……三方コツ
ク、１２……液量測定器、１３……制御部、１４
……モード切換スイツチ、１５……トリガースイ
ツチ、１６……バイパスカプラー。
The drawings are explanatory diagrams showing an embodiment of the present invention.
4: Liquid level detector, 5 to 8: Opening and closing valves, 9: Liquid flow detector, 10: Check valve, 11: Three-way cock, 12: Liquid level measuring device, 13: Control unit, 14
...Mode change switch, 15...Trigger switch, 16...Bypass coupler.
Claims (1)
出口には動作モードに応じた透析液回路接続要素
１，１６の一端が選択的に接続される第１の開閉
弁６と、 流入口が第１の開閉弁６の流入口に接続され、
流出口が透析液の排出口OUT側に接続された第
２の開閉弁７と、 ほぼ垂直方向に配置され、下端は透析液回路接
続要素１，１６の他端に接続され、上端は透析液
の排出口OUTに接続されるとともに逆止弁１０
を介して大気に連通された計量容器２と、 計量容器２の上端近傍に配置され、内部の第１
の液位L1を検知する第１の液位検知器３と、 計量容器２の下端近傍に配置され、内部の第２
の液位L2を検知する第２の液位検知器４と、 流入口が計量容器２の下端に接続された第３の
開閉弁８と、 流入口には第３の開閉弁８の流出口が接続さ
れ、一方の流出口は透析液の排出口OUTに接続
された三方コツク１１と、 三方コツク１１の他方の流出口側に配置され、
第３の開閉弁８を介して加えられる計量容器２の
液量を測定する液量測定器１２と、 通常運転モードと容積測定モードとを切換設定
するモード切換スイツチ１４と、 第３の開閉弁８を選択的に開くためのトリガー
信号を出力するトリガースイツチ１５と、 モード切換スイツチ１４により設定される動作
モード、トリガースイツチ１５から出力されるト
リガー信号、各液位検知器３，４の検知信号に応
じて各開閉弁６，７，８を選択的に開閉駆動する
制御部１３とを具備し、 通常運転モードでの透析動作にあたつては透析
液回路接続要素としてダイアライザー１が接続さ
れ、第１の開閉弁６が開かれるとともに第２の開
閉弁７、第３の開閉弁８が閉じられ、 通常運転モードでの限外濾過能力測定にあたつ
ては透析液回路接続要素としてダイアライザー１
が接続され、第１の開閉弁６が閉じられて第２の
開閉弁７、第３の開閉弁８が開かれることにより
計量容器２の内部が空にされた後第３の開閉弁８
が閉じられてダイアライザー１により限外濾過さ
れた液が計量容器２内に溜められ、液が液位L2
からL1までの既知の容積値Ｖまで溜まるのに要
する時間Ｔおよび限外濾過圧Ｐが測定されて
（Ｖ／Ｔ・Ｐ）により限外濾過能力が演算され、 計量容器２の容積測定モードでは透析液回路接
続要素としてバイパスカプラー１６が接続され、
第１の開閉弁６が開かれて第２の開閉弁７、第３
の開閉弁８が閉じられることにより計量容器２内
に液位L1以上の液が溜められた後に第２の開閉
弁７が開かれて第１の開閉弁６、第３の開閉弁８
が閉じられ、この状態でトリガースイツチ１５が
操作されることにより第３の開閉弁８は開かれて
計量容器２内の液位がL1に減少した時点t1で液位
検知器３の出力信号に基づいて第３の開閉弁８は
閉じられ、この状態で三方コツク１１の流出口は
液量測定器１２側に切り換えられた後再びトリガ
ースイツチ１５が操作されることにより第３の開
閉弁８は開かれて計量容器２内の液位がL2に減
少した時点t2で液位検知器４の出力信号に基づい
て第３の開閉弁８は閉じられ、この時間t2−t1内
に液量測定器１２に流入する液量に基づいて計量
容器２内の液位L2からL1までの容積が測定され
ることを特徴とする人工透析装置。[Claims for Utility Model Registration] A first device whose inlet is connected to the IN side of the dialysate inlet, and whose outlet is selectively connected to one end of the dialysate circuit connection element 1, 16 according to the operation mode. an on-off valve 6 whose inlet is connected to an inlet of the first on-off valve 6,
The second on-off valve 7 whose outflow port is connected to the dialysate outlet OUT side is arranged almost vertically, the lower end is connected to the other end of the dialysate circuit connection element 1, 16, and the upper end is connected to the dialysate outlet OUT side. The check valve 10 is connected to the discharge port OUT of the
a measuring container 2 which is communicated with the atmosphere through the measuring container 2;
A first liquid level detector 3 that detects the liquid level L 1 of
a second liquid level detector 4 that detects the liquid level L2 ; a third on-off valve 8 whose inlet is connected to the lower end of the measuring container 2; The outlet is connected to the three-way pot 11, one outlet is connected to the dialysate outlet OUT, and the other outlet side of the three-way pot 11 is arranged,
A liquid amount measuring device 12 that measures the amount of liquid added to the measuring container 2 via the third on-off valve 8, a mode changeover switch 14 that switches between normal operation mode and volume measurement mode, and a third on-off valve a trigger switch 15 that outputs a trigger signal to selectively open the liquid level detector 8, an operation mode set by the mode changeover switch 14, a trigger signal output from the trigger switch 15, and a detection signal of each liquid level detector 3, 4. The control unit 13 selectively opens and closes the on-off valves 6, 7, and 8 according to the operation mode, and the dialyzer 1 is connected as a dialysate circuit connection element during dialysis operation in the normal operation mode. When the first on-off valve 6 is opened, the second on-off valve 7 and the third on-off valve 8 are closed, and when measuring ultrafiltration capacity in the normal operation mode, the dialyzer 1 is used as a dialysate circuit connection element.
is connected, the first on-off valve 6 is closed, the second on-off valve 7 and the third on-off valve 8 are opened, and after the inside of the measuring container 2 is emptied, the third on-off valve 8 is opened.
is closed and the liquid ultrafiltered by the dialyzer 1 is stored in the measuring container 2, and the liquid reaches the liquid level L 2
The time T and ultrafiltration pressure P required for the volume to accumulate to a known volume value V from In this case, a bypass coupler 16 is connected as a dialysate circuit connection element,
When the first on-off valve 6 is opened, the second on-off valve 7 and the third on-off valve are opened.
After the on-off valve 8 is closed and a liquid with a liquid level of L 1 or higher is stored in the measuring container 2, the second on-off valve 7 is opened and the first on-off valve 6 and the third on-off valve 8 are opened.
is closed, and in this state, the third on-off valve 8 is opened by operating the trigger switch 15, and at the time t1 when the liquid level in the measuring container 2 has decreased to L1 , the output of the liquid level detector 3 is The third on-off valve 8 is closed based on the signal, and in this state, the outlet of the three-way pot 11 is switched to the liquid level measuring device 12 side, and then the third on-off valve is closed by operating the trigger switch 15 again. 8 is opened, and at time t 2 when the liquid level in the measuring container 2 has decreased to L 2 , the third on-off valve 8 is closed based on the output signal of the liquid level detector 4, and at this time t 2 −t 1 An artificial dialysis apparatus characterized in that the volume from the liquid level L2 to L1 in the measuring container 2 is measured based on the amount of liquid flowing into the liquid volume measuring device 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1466483U JPS59122139U (en) | 1983-02-03 | 1983-02-03 | artificial dialysis machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1466483U JPS59122139U (en) | 1983-02-03 | 1983-02-03 | artificial dialysis machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59122139U JPS59122139U (en) | 1984-08-17 |
| JPS639321Y2 true JPS639321Y2 (en) | 1988-03-18 |
Family
ID=30146015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1466483U Granted JPS59122139U (en) | 1983-02-03 | 1983-02-03 | artificial dialysis machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59122139U (en) |
-
1983
- 1983-02-03 JP JP1466483U patent/JPS59122139U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59122139U (en) | 1984-08-17 |
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