JPH036360Y2 - - Google Patents
Info
- Publication number
- JPH036360Y2 JPH036360Y2 JP1981196119U JP19611981U JPH036360Y2 JP H036360 Y2 JPH036360 Y2 JP H036360Y2 JP 1981196119 U JP1981196119 U JP 1981196119U JP 19611981 U JP19611981 U JP 19611981U JP H036360 Y2 JPH036360 Y2 JP H036360Y2
- Authority
- JP
- Japan
- Prior art keywords
- blood
- tube
- pressure gauge
- inflow
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000008280 blood Substances 0.000 claims description 48
- 210000004369 blood Anatomy 0.000 claims description 48
- 210000003734 kidney Anatomy 0.000 claims description 8
- 238000012806 monitoring device Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000004872 arterial blood pressure Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
本考案は、人工腎臓装置における血液系の監視
装置に関する。[Detailed Description of the Invention] The present invention relates to a blood system monitoring device in an artificial kidney device.
第１図は、従来の人工腎臓装置の主要部の構成
説明図である。装置は、ダイアライザ（透析器）
１の膜の一方の室を含み、可撓性チユーブ２で流
路が構成される系であつて、血液ポンプ３、動脈
側チヤンバー４、チユーブ５を介してチヤンバー
３の内圧を測定し、信号S1を出力する圧力計６、
絞り弁（オートクレンメ）７、静脈側チヤンバー
８及びチユーブ９を介してチヤンバー８の内圧を
測定する圧力計１０から成る血液系と、ダイアフ
ライザ１の膜の他方の室を含み、チユーブ１１で
流路が構成される系であつて、透析液貯溜槽１
２、送液ポンプ１３及びチユーブ１１の内圧を測
定し信号S2を出力する圧力計１４から成る透析液
系と、信号S1とS2との差を測定値とし、所定の演
算をして、絞り弁７に制御信号S3を出力する調節
部１５から成る制御系とを有する。 FIG. 1 is an explanatory diagram of the configuration of the main parts of a conventional artificial kidney device. The device is a dialyzer
The system includes one chamber of a membrane 1, and a flow path is formed by a flexible tube 2. The system measures the internal pressure of the chamber 3 via a blood pump 3, an arterial chamber 4, and a tube 5, and outputs a signal. a pressure gauge 6 that outputs S 1 ;
A blood system consisting of a throttle valve (auto-cleaning) 7, a venous chamber 8, and a pressure gauge 10 that measures the internal pressure of the chamber 8 via a tube 9, and the other chamber of the membrane of the diaphragm 1, and a flow path with a tube 11. A system consisting of a dialysate storage tank 1
2. A dialysate system consisting of a fluid pump 13 and a pressure gauge 14 that measures the internal pressure of the tube 11 and outputs a signal S 2 , and the difference between the signals S 1 and S 2 as a measured value and performs a predetermined calculation. , and a control system consisting of an adjustment section 15 that outputs a control signal S3 to the throttle valve 7.
上記血液系は、患者１６の動脈からの血液が、
血液ポンプ３によつて、チヤンバー４→ダイアラ
イザ１→絞り弁７→チヤンバー８を経て、患者１
６の静脈に戻されるようになつている。又、透析
液系は、透析液貯留槽１２の透析液が、送液ポン
プ１３によつて、ダイアライザ１内にて、膜を介
して血液と反対方向に流れ、排出されるようにな
つている。一方、制御系は、圧力計６の信号と圧
力計１４の信号との差、即ち、血液系の血液圧力
と透析液系の液圧力（ほとんど一定値を示してい
る）との差が、所定の範囲に入るように、絞り弁
７を調節するようになつている。 In the blood system, blood from the artery of the patient 16 is
Blood pump 3 passes chamber 4 → dialyzer 1 → throttle valve 7 → chamber 8 to patient 1.
It is designed to be returned to the 6th vein. In addition, the dialysate system is configured such that the dialysate in the dialysate storage tank 12 flows in the opposite direction to the blood through the membrane in the dialyzer 1 by a liquid pump 13 and is discharged. . On the other hand, in the control system, the difference between the signal of the pressure gauge 6 and the signal of the pressure gauge 14, that is, the difference between the blood pressure of the blood system and the fluid pressure of the dialysate system (which shows an almost constant value), is controlled at a predetermined level. The throttle valve 7 is adjusted so that it falls within this range.
このような人工腎臓装置において、血液系を構
成する要素の中で、透析中に血液に接液するダイ
アライザ１、チユーブ２、チヤンバー４，８等
は、肝炎の感染を防ぐため、各患者毎に、新規な
もの（消毒済みのもの）に交換される。 In such an artificial kidney device, among the elements that make up the blood system, the dialyzer 1, tube 2, chambers 4, 8, etc. that come into contact with blood during dialysis are carefully inspected for each patient to prevent hepatitis infection. , will be replaced with a new one (sterilized one).
しかし、制御系の故障、チユーブ２のねじれ等
によつて、上記接液要素以外にまで血液が侵入す
る事態を招来することがある。例えば、動脈側チ
ヤンバー４から溢れた血液によつて、チユーブ５
や圧力計６が汚染されることがある。これらは、
各患者毎に交換する構成となつていないので、上
記トラブルがあると、その後の処理に工数を要
し、問題となつていた。 However, due to a failure of the control system, twisting of the tube 2, etc., a situation may arise in which blood intrudes into elements other than the above-mentioned liquid contact elements. For example, blood overflowing from the arterial chamber 4 may cause the tube 5 to
or the pressure gauge 6 may be contaminated. these are,
Since the device is not configured to be replaced for each patient, if the above-mentioned trouble occurs, subsequent processing requires a lot of man-hours, which has become a problem.
本考案は、かかる点に鑑みてなされたものであ
り、その目的は、血液系における非交換要素の汚
染を防ぐため、動脈側チヤンバー、又は静脈側チ
ヤンバーにおける血液の溢れを検出し、血液ポン
プの駆動を停止するようにした監視装置を提供す
るにある。 The present invention was developed in view of the above, and its purpose is to detect blood overflow in the arterial chamber or venous chamber, and to prevent the contamination of non-exchangeable elements in the blood system. To provide a monitoring device that stops driving.
本考案の構成は、動脈側チヤンバーと圧力計を
連通するチユーブに設置され、該チユーブにおけ
る血液の流入を検出する第１手段、又は、静脈側
チヤンバーと圧力計を連通するチユーブに設置さ
れ、該チユーブにける血液の流入を検出する第２
手段と、前記第１手段の検出信号、又は、前記第
２手段の検出信号によつて、血液ポンプの駆動を
停止する信号を出力する制御部とから成る。 The configuration of the present invention is a first means installed in a tube that communicates an arterial chamber and a pressure gauge and detects blood inflow in the tube, or a first means installed in a tube that communicates a venous chamber and a pressure gauge. a second detecting blood inflow into the tube;
and a control section that outputs a signal to stop driving the blood pump based on the detection signal of the first means or the detection signal of the second means.
以下、図面を参照し、本考案について説明す
る。 The present invention will be described below with reference to the drawings.
第２図は、本考案の一実施例による監視装置の
構成説明図である。第２図において、第１図に付
した符号と同一のものは、同一意味で用いられて
いるので、ここでの説明を省略する。 FIG. 2 is an explanatory diagram of the configuration of a monitoring device according to an embodiment of the present invention. In FIG. 2, the same reference numerals as those in FIG. 1 are used with the same meaning, and therefore the description thereof will be omitted here.
１７はチユーブ５に設置され、血液流入を検出
し、信号S4を出力する血液流入検出器で、チユー
ブ５が光透過性静脈から成る場合、発光ダイオー
ド、フオトダイオード等で構成される。１８はチ
ユーブ９に設置され、血液流入を検出し、信号S5
を出力する血液流入検出器で、チユーブ９が光透
過性部材から成る場合、やはり、発光ダイオー
ド、フオトダイオード等で構成される。１９は制
御部で、ダイアライザ１の除水性能に応じて、S1
−S2（血液系と透析液系の圧力差）が所定の値に
なるように、調節部１５に指示（設定信号S6）を
与える機能と、血液ポンプ３を制御すると共に、
信号S4、又は、S5があつた場合、血液ポンプ３の
駆動を停止する信号S7を出力する機能とを有す
る。 A blood inflow detector 17 is installed in the tube 5 and detects blood inflow and outputs a signal S4 . If the tube 5 is composed of a light-transmitting vein, it is composed of a light emitting diode, a photodiode, etc. 18 is installed in tube 9 to detect blood inflow and send signal S 5
When the tube 9 is made of a light-transmitting member in a blood inflow detector that outputs , it is also made of a light emitting diode, a photodiode, etc. Reference numeral 19 is a control unit that controls S 1 according to the water removal performance of the dialyzer 1.
- A function of giving an instruction (setting signal S 6 ) to the adjustment unit 15 and controlling the blood pump 3 so that S 2 (pressure difference between the blood system and the dialysate system) becomes a predetermined value;
It has a function of outputting a signal S 7 to stop driving the blood pump 3 when the signal S 4 or S 5 is received.
このような人工腎臓装置において、通常、制御
部１９からの信号S7によつて、血液ポンプ３は、
患者個々に応じた所定の血液流量を流す動作をす
ると共に、調節部１５は、血液系と透析液系との
圧力差が所定の値になるような制御動作を行う。
そして、制御系の故障やチユーブ２のねじれによ
つて、血液系の圧力が上昇し、チヤンバー４、又
は、８から血液が溢れると、検出器１７、又は、
１８が信号S4、又はS5を発生する。これにより、
制御部１９は、血液ポンプ３の駆動を停止する信
号を発生し、血液ポンプ３の駆動を停止する。し
たがつて、圧力計６や血液が侵入することがな
い。 In such an artificial kidney device, the blood pump 3 is normally controlled by the signal S7 from the control unit 19.
In addition to performing an operation to flow a predetermined blood flow rate depending on each patient, the adjustment unit 15 performs a control operation such that the pressure difference between the blood system and the dialysate system becomes a predetermined value.
When the pressure in the blood system increases due to a failure in the control system or twisting of the tube 2, and blood overflows from the chamber 4 or 8, the detector 17 or
18 generates the signal S 4 or S 5 . This results in
The control unit 19 generates a signal to stop driving the blood pump 3, and stops driving the blood pump 3. Therefore, the pressure gauge 6 and blood will not enter.
尚、本考案は、血液流入検出器を上記実施例に
限定するものではなく、他の公知の手段、例え
ば、超音波方式、静電容量方式等であつてもよ
い。 It should be noted that the blood inflow detector of the present invention is not limited to the above-mentioned embodiments, but may be other known means such as an ultrasonic method, a capacitance method, etc.
以上、説明したように、本考案の監視装置によ
れば、動脈側チヤンバー、又は、静脈側チヤンバ
ーに、血液の溢れを検出する手段を設置し、該手
段からの信号によつて血液ポンプの駆動を停止す
るようになつているので、圧力計を血液で汚染す
ることがなく、保守工数の低減が実現される。 As explained above, according to the monitoring device of the present invention, a means for detecting blood overflow is installed in the arterial side chamber or the venous side chamber, and the blood pump is driven by the signal from the means. Since the pressure gauge is stopped, the pressure gauge is not contaminated with blood, and maintenance man-hours can be reduced.
第１図は、従来の人工腎臓装置の主要部の構成
説明図、第２図は、本考案の一実施例による人工
腎臓装置における監視装置の構成説明図である。
１……ダイアライザ、２，５，９及び１１……
チユーブ、３……血液ポンプ、４……動脈側チヤ
ンバー、６，１０及び１４……圧力計、７……絞
り弁、８……静脈側チヤンバー、１２……透析液
槽、１３……送液ポンプ、１５……調節部、１７
及び１８……血液流入検出器、１９……制御部。
FIG. 1 is an explanatory diagram of the configuration of main parts of a conventional artificial kidney device, and FIG. 2 is an explanatory diagram of the configuration of a monitoring device in an artificial kidney device according to an embodiment of the present invention. 1... dialyzer, 2, 5, 9 and 11...
Tube, 3... Blood pump, 4... Arterial side chamber, 6, 10 and 14... Pressure gauge, 7... Throttle valve, 8... Venous side chamber, 12... Dialysate tank, 13... Liquid feeding Pump, 15...Adjustment section, 17
and 18... blood inflow detector, 19... control unit.
Claims (1)
側圧力計を連通する第１チユーブの外側に設置さ
れ該チユーブ内への血液の流入を検出する第１血
液流入検出器と、静脈側チヤンバーと静脈側圧力
計を連通する第２チユーブの外側に設置され該チ
ユーブ内への血液の流入を検出する第２血液流入
検出器と、これら血液流入検出器からの検出信号
によつて血液ポンプの駆動を停止する信号を出力
する制御部を具備し、前記第１及び第２のチユー
ブ内への血液の流入を前記第１及び第２の血液流
入検出器で検出し前記制御部の出力で血液ポンプ
の駆動を停止することにより前記動脈側圧力計及
び静脈側圧力計内への血液流入を阻止するように
構成したことを特徴とする人工腎臓装置における
血液計の監視装置。 A first blood inflow detector installed outside a first tube that communicates an arterial chamber and an arterial pressure gauge in an artificial kidney device to detect blood inflow into the tube, and a venous chamber and a venous pressure gauge. a second blood inflow detector installed outside the second tube communicating with the second tube to detect blood inflow into the tube; and a signal to stop driving the blood pump based on detection signals from these blood inflow detectors. the first and second blood inflow detectors detect the inflow of blood into the first and second tubes, and the blood pump is stopped by the output of the control section. A monitoring device for a blood meter in an artificial kidney device, characterized in that the device is configured to prevent blood from flowing into the arterial pressure gauge and the venous pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19611981U JPS58101646U (en) | 1981-12-28 | 1981-12-28 | Blood system monitoring device in artificial kidney equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19611981U JPS58101646U (en) | 1981-12-28 | 1981-12-28 | Blood system monitoring device in artificial kidney equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58101646U JPS58101646U (en) | 1983-07-11 |
| JPH036360Y2 true JPH036360Y2 (en) | 1991-02-18 |
Family
ID=30109369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19611981U Granted JPS58101646U (en) | 1981-12-28 | 1981-12-28 | Blood system monitoring device in artificial kidney equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58101646U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117895A (en) * | 1973-03-19 | 1974-11-11 | ||
| JPS5781352A (en) * | 1980-11-10 | 1982-05-21 | Nikkiso Co Ltd | Monitor system for bedside |
-
1981
- 1981-12-28 JP JP19611981U patent/JPS58101646U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117895A (en) * | 1973-03-19 | 1974-11-11 | ||
| JPS5781352A (en) * | 1980-11-10 | 1982-05-21 | Nikkiso Co Ltd | Monitor system for bedside |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58101646U (en) | 1983-07-11 |
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