DE2901628A1 - Automatic balancing haemofiltration appts. - with capacitive measurement of filtrate and automatic proportional replacement - Google Patents
Automatic balancing haemofiltration appts. - with capacitive measurement of filtrate and automatic proportional replacementInfo
- Publication number
- DE2901628A1 DE2901628A1 DE19792901628 DE2901628A DE2901628A1 DE 2901628 A1 DE2901628 A1 DE 2901628A1 DE 19792901628 DE19792901628 DE 19792901628 DE 2901628 A DE2901628 A DE 2901628A DE 2901628 A1 DE2901628 A1 DE 2901628A1
- Authority
- DE
- Germany
- Prior art keywords
- haemofiltration
- appts
- filtrate
- automatic
- balancing
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
- A61M1/342—Adding solutions to the blood, e.g. substitution solutions
- A61M1/3441—Substitution rate control as a function of the ultrafiltration rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
- A61M1/342—Adding solutions to the blood, e.g. substitution solutions
- A61M1/3441—Substitution rate control as a function of the ultrafiltration rate
- A61M1/3448—Substitution rate control as a function of the ultrafiltration rate by mechanically linked pumps in both ultra-filtrate and substitution flow line
Abstract
Description
Haemofiltrationsgerät mit automatischer BilanzierungHaemofiltration device with automatic balancing
Die Erfindung betrifft ein Gerät zur Durchführung der Haemofiltration, einem speziellen Verfahren der Blutwäsche.The invention relates to a device for carrying out hemofiltration, a special method of blood washing.
Bei den bekannten Verfahren der Haemofiltration dient als Meßaufnehmer der automatischen Bilanzierung ein Kraftaufnehmer.In the known methods of hemofiltration, the measuring sensor is used a force transducer for automatic balancing.
Die in Frage kommenden Volumenverschiebungen werden auf dem Umwege ihrer Gewichtserfassung gesteuert ( z. B. Waagebalken etc. ).The volume shifts in question are by way of a detour their weight recording controlled (e.g. balance beam, etc.).
Diese Verfahren sind nur kostspielig zu realisieren und wegen der erforderlichen Genauigkeit und Sicherheit auch störanfällig.These processes are only costly to implement and because of the required accuracy and security also prone to failure.
Bei unserem Verfahren verzichten wir auf das Wiegesystem und nehmen eine direkte, kontinuierliche Messung der Filtratmenge vor.In our method, we do without the weighing system and take direct, continuous measurement of the amount of filtrate.
Der Erfindung liegt die Aufgabe zugrunde, ein Bilanzierungssystem für die Haemofiltration zu schaffen, mit dem Ziel, eine kleine, zuverlässige und preiswerte Einheit zu schaffen, die als Ergänzungseinheit gestatten soll, auch in Verbindung mit einem herkömmlichen Haemodialysegerät eine automatisch bilanzierte Haemofiltration durchzuführen.The invention is based on the object of a balancing system for haemofiltration with the aim of creating a small, reliable and to create inexpensive unit that should allow as a supplementary unit, also in Connection with a conventional hemodialysis machine an automatically balanced Perform haemofiltration.
Die Lösung dieser Aufgabe wird erfindungsgemäß folgendermaßen erreicht: Der Haemofilter HF durch den der Blutstrom QB fließt, wird mit einer Leitung mit dem Ansaugbehälter AB verbunden. In diesem Behälter wird durch die Pumpe PU ein Unterdruck erzeugt, welcher über den Filter HF dem Blut das Filtrat entzieht. Der Filtratstrom QF sammelt sich in AB und gleichzeitig über eine komunizierende Röhre im Meßzylinder MZ. Die Füllhöhe von MZ wird über ein Kondensatorsystem (Filtrat = Dielektrikum) abgetastet und der Meßwert einem Verstärker V zugeführt. Dieser regelt in Abhängigkeit von der Füllstandhöhe in MZ die Drehzahlen von M2 (Motor 2) und M3 (Motor 3).The solution to this problem is achieved according to the invention as follows: The haemofilter HF through which the blood flow QB flows is connected to a line connected to the suction tank AB. In this container is a PU pump Negative pressure is generated, which removes the filtrate from the blood via the filter HF. Of the Filtrate flow QF collects in AB and at the same time via a communicating tube in the measuring cylinder MZ. The filling level of MZ is determined by a condenser system (filtrate = Dielectric) is scanned and the measured value is fed to an amplifier V. This regulates the speeds of M2 (motor 2) and M3 (motor 3).
Da die dem Blut entzogene Flüssigkeit QF durch eine Ersatzflüssigkeit SL (Substitutionslösung) ersetzt werden muß, laufen die beiden Pumpenknöpfe P1 und P2 über eine gemeinsame Achse an M2.Since the fluid QF withdrawn from the blood is replaced by a replacement fluid SL (substitution solution) has to be replaced, the two pump buttons P1 and run P2 via a common axis to M2.
Hierdurch ist eine Bilanzierung im Verhältnis 1:1 gewährleistet.This guarantees a 1: 1 balance.
Das Filtrat wird nach dem Passieren von P1 verworfen. Die meistens notwendige Gewichtsreduzierung des Patienten PA (Wasserentzug) wird dadurch erreicht, daß über M3 die Rollenpumpe P3 dem Filtratstrom QF eine vorher definierte Menge entzieht.The filtrate is discarded after passing through P1. The most necessary weight reduction of the patient PA (dehydration) is achieved by that via M3 the roller pump P3 the filtrate flow QF a previously defined amount withdraws.
Dieses Filtrat wird im Meßbehälter MB aufgefangen. Hierdurch erhalten wir ein direktes Maß für die dem Patienten endgültig entzogene Flüssigkeitsmenge.This filtrate is collected in the measuring container MB. Obtained by this we are a direct measure of the final amount of fluid withdrawn from the patient.
An M3 läßt sich in prozentualer Abhängigkeit zu M2 der Flüssigkeitsentzug einstellen.At M3, the dehydration can be determined as a percentage of M2 to adjust.
Ein Leerlaufen des Ansaugbehälters wird durch einen Stillstand von M2 und M3 bei Minimum-Niveau erreicht.An emptying of the suction container is caused by a standstill of M2 and M3 reached at minimum level.
Im Ansaugbehälter findet eine photoelektrische Uberwachung des Filtrates auf Eintrübung durch Blut (Filter defekt) statt. Im Alarmfall würde der Biltriervorgang unterbrochen. Der Blutleckdetektor BLD würde dann PU abschalten. Die Heizung H erwärmt die Ersatzflüssigkeit SL.Photoelectric monitoring of the filtrate takes place in the suction tank on clouding caused by blood (filter defective) instead. In the event of an alarm, the imaging process would interrupted. The blood leak detector BLD would then switch off PU. The heater H heats up the substitute liquid SL.
Es gilt also, daß die Filtratmenge QF abzüglich der Abnahmemenge Q Abn die Menge QF-Q Abn ergibt. Die Menge wird restlos durch QS dem Patienten ersetzt.It is therefore true that the amount of filtrate QF minus the purchase amount Q Abn gives the quantity QF-Q Abn. The amount is completely replaced by QS for the patient.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792901628 DE2901628A1 (en) | 1979-01-17 | 1979-01-17 | Automatic balancing haemofiltration appts. - with capacitive measurement of filtrate and automatic proportional replacement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792901628 DE2901628A1 (en) | 1979-01-17 | 1979-01-17 | Automatic balancing haemofiltration appts. - with capacitive measurement of filtrate and automatic proportional replacement |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2901628A1 true DE2901628A1 (en) | 1980-07-24 |
Family
ID=6060734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792901628 Withdrawn DE2901628A1 (en) | 1979-01-17 | 1979-01-17 | Automatic balancing haemofiltration appts. - with capacitive measurement of filtrate and automatic proportional replacement |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2901628A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0044694A1 (en) * | 1980-07-18 | 1982-01-27 | Kuraray Co., Ltd. | Apparatus for plasma separation/exchange by double filtration |
FR2581316A1 (en) * | 1985-05-02 | 1986-11-07 | Murisasco Antoine | Method and device for automatic plasma exchanges controlled by an integrated computer |
EP0222709A2 (en) * | 1985-11-12 | 1987-05-20 | BELLCO S.p.A. | Blood-purifying apparatus |
US8029454B2 (en) | 2003-11-05 | 2011-10-04 | Baxter International Inc. | High convection home hemodialysis/hemofiltration and sorbent system |
US8038639B2 (en) | 2004-11-04 | 2011-10-18 | Baxter International Inc. | Medical fluid system with flexible sheeting disposable unit |
US8114276B2 (en) | 2007-10-24 | 2012-02-14 | Baxter International Inc. | Personal hemodialysis system |
US8920362B2 (en) | 2007-07-05 | 2014-12-30 | Baxter International Inc. | Dialysis system having disposable cassette |
US8992463B2 (en) | 2007-11-09 | 2015-03-31 | Baxter International Inc. | Balanced flow dialysis machine |
US9764074B1 (en) | 2002-07-19 | 2017-09-19 | Baxter International Inc. | Systems and methods for performing dialysis |
US10232103B1 (en) | 2001-11-13 | 2019-03-19 | Baxter International Inc. | System, method, and composition for removing uremic toxins in dialysis processes |
US10646634B2 (en) | 2008-07-09 | 2020-05-12 | Baxter International Inc. | Dialysis system and disposable set |
US11495334B2 (en) | 2015-06-25 | 2022-11-08 | Gambro Lundia Ab | Medical device system and method having a distributed database |
US11516183B2 (en) | 2016-12-21 | 2022-11-29 | Gambro Lundia Ab | Medical device system including information technology infrastructure having secure cluster domain supporting external domain |
-
1979
- 1979-01-17 DE DE19792901628 patent/DE2901628A1/en not_active Withdrawn
Cited By (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0044694A1 (en) * | 1980-07-18 | 1982-01-27 | Kuraray Co., Ltd. | Apparatus for plasma separation/exchange by double filtration |
FR2581316A1 (en) * | 1985-05-02 | 1986-11-07 | Murisasco Antoine | Method and device for automatic plasma exchanges controlled by an integrated computer |
EP0222709A2 (en) * | 1985-11-12 | 1987-05-20 | BELLCO S.p.A. | Blood-purifying apparatus |
EP0222709A3 (en) * | 1985-11-12 | 1989-07-12 | Sorin Biomedica S.P.A. | Control device for blood-purifying apparatus |
US10980931B2 (en) | 2001-11-13 | 2021-04-20 | Baxter International Inc. | System, method, and composition for removing uremic toxins in dialysis processes |
US10232103B1 (en) | 2001-11-13 | 2019-03-19 | Baxter International Inc. | System, method, and composition for removing uremic toxins in dialysis processes |
US11235094B2 (en) | 2002-07-19 | 2022-02-01 | Baxter International Inc. | System for peritoneal dialysis |
US10363352B2 (en) | 2002-07-19 | 2019-07-30 | Baxter International Inc. | Disposable set and system for dialysis |
US10179200B2 (en) | 2002-07-19 | 2019-01-15 | Baxter International Inc. | Disposable cassette and system for dialysis |
US9764074B1 (en) | 2002-07-19 | 2017-09-19 | Baxter International Inc. | Systems and methods for performing dialysis |
US9421313B2 (en) | 2003-11-05 | 2016-08-23 | Baxter International Inc. | Hemodialysis system with horizontal cassette roller pumps |
US10426883B2 (en) | 2003-11-05 | 2019-10-01 | Baxter International Inc. | Systems and methods for priming hemodialysis using multiple fluid sources |
US8029454B2 (en) | 2003-11-05 | 2011-10-04 | Baxter International Inc. | High convection home hemodialysis/hemofiltration and sorbent system |
US8926540B2 (en) | 2003-11-05 | 2015-01-06 | Baxter Healthcare Inc. | Hemodialysis system with separate dialysate cassette |
US8894600B2 (en) | 2003-11-05 | 2014-11-25 | Baxter International Inc. | Hemodialysis system including on-line dialysate generation |
US10293096B2 (en) | 2003-11-05 | 2019-05-21 | Baxter International Inc. | Dialysis system including cassette with pumping tubes |
US9005152B2 (en) | 2003-11-05 | 2015-04-14 | Baxter International Inc. | Dialysis system with cassette based balance chambers and volumetric pumps |
US9028436B2 (en) | 2003-11-05 | 2015-05-12 | Baxter International Inc. | Hemodialysis system with cassette-based blood and dialyste pumping |
US9039648B2 (en) | 2003-11-05 | 2015-05-26 | Baxter International Inc. | Dialysis system with enhanced features |
US9050411B2 (en) | 2003-11-05 | 2015-06-09 | Baxter International Inc. | Dialysis system including downloaded prescription entry |
US9072843B2 (en) | 2003-11-05 | 2015-07-07 | Baxter International Inc. | Renal therapy system having pump reversing fluid control |
US9072830B2 (en) | 2003-11-05 | 2015-07-07 | Baxter International Inc. | Systems and methods for priming sorbent-based hemodialysis |
US9072831B2 (en) | 2003-11-05 | 2015-07-07 | Baxter International Inc. | Medical fluid pump valve integrity test methods and systems |
US9144641B2 (en) | 2003-11-05 | 2015-09-29 | Baxter International Inc. | Dialysis system with balance chamber prime and rinseback |
US9155825B2 (en) | 2003-11-05 | 2015-10-13 | Baxter International Inc. | Hemodialysis system using sorbent and reservoir |
US9168333B2 (en) | 2003-11-05 | 2015-10-27 | Baxter International Inc. | Dialysis system including disposable cassette |
US9216246B2 (en) | 2003-11-05 | 2015-12-22 | Baxter International Inc. | Renal failure therapy machines and methods including conductive and convective clearance |
US9302039B2 (en) | 2003-11-05 | 2016-04-05 | Baxter International Inc. | Hemodialysis system including a disposable cassette |
US9364602B2 (en) | 2003-11-05 | 2016-06-14 | Baxter International Inc. | Systems and methods for priming sorbent-based hemodialysis using dialysis fluid |
US9387286B2 (en) | 2003-11-05 | 2016-07-12 | Baxter International Inc. | Dialysis system including peristaltic tubing pumping cassette |
US10245369B2 (en) | 2003-11-05 | 2019-04-02 | Baxter International Inc. | Systems and methods for priming hemodialysis using dialysis fluid |
US8882692B2 (en) | 2003-11-05 | 2014-11-11 | Baxter International Inc. | Hemodialysis system with multiple cassette interference |
US9480784B2 (en) | 2003-11-05 | 2016-11-01 | Baxter International Inc. | Dialysis system with balance chamber prime and rinseback |
US9550020B2 (en) | 2003-11-05 | 2017-01-24 | Baxter International Inc. | Dialysis system with a varying rate ultrafiltration profile |
US9572919B2 (en) | 2003-11-05 | 2017-02-21 | Baxter International Inc. | Dialysis system with cassette based balance chambers and volumetric pumps |
US9642961B2 (en) | 2003-11-05 | 2017-05-09 | Baxter International Inc. | Renal failure therapy machines and methods including convective and diffusive clearance |
US9675745B2 (en) | 2003-11-05 | 2017-06-13 | Baxter International Inc. | Dialysis systems including therapy prescription entries |
US10245370B2 (en) | 2003-11-05 | 2019-04-02 | Baxter International Inc. | Renal failure therapy machines and methods including convective and diffusive clearance |
US10183109B2 (en) | 2003-11-05 | 2019-01-22 | Baxter International Inc. | Hemodialysis system including a disposable cassette |
US9872950B2 (en) | 2003-11-05 | 2018-01-23 | Baxter International Inc. | Renal therapy system having pump reversing fluid control |
US9884144B2 (en) | 2003-11-05 | 2018-02-06 | Baxter International Inc. | Hemodialysis system with cassette-based blood and dialysate pumping |
US9889243B2 (en) | 2003-11-05 | 2018-02-13 | Baxter International Inc. | Dialysis system including automatic priming |
US10155080B2 (en) | 2003-11-05 | 2018-12-18 | Baxter International Inc. | Renal therapy system with cassette-based blood and dialysate pumping |
US8038639B2 (en) | 2004-11-04 | 2011-10-18 | Baxter International Inc. | Medical fluid system with flexible sheeting disposable unit |
US8920362B2 (en) | 2007-07-05 | 2014-12-30 | Baxter International Inc. | Dialysis system having disposable cassette |
US8329030B2 (en) | 2007-10-24 | 2012-12-11 | Baxter International Inc. | Hemodialysis system with cassette and pinch clamp |
US9855377B2 (en) | 2007-10-24 | 2018-01-02 | Baxter International Inc. | Dialysis system including heparin injection |
US8323492B2 (en) | 2007-10-24 | 2012-12-04 | Baxter International Inc. | Hemodialysis system having clamping mechanism for peristaltic pumping |
US8834719B2 (en) | 2007-10-24 | 2014-09-16 | Baxter International Inc. | Personal hemodialysis system |
US9925320B2 (en) | 2007-10-24 | 2018-03-27 | Baxter International Inc. | Renal therapy machine and system including a priming sequence |
US11291752B2 (en) | 2007-10-24 | 2022-04-05 | Baxter International Inc. | Hemodialysis system including a disposable set and a dialysis instrument |
US8114276B2 (en) | 2007-10-24 | 2012-02-14 | Baxter International Inc. | Personal hemodialysis system |
US8932469B2 (en) | 2007-10-24 | 2015-01-13 | Baxter International Inc. | Personal hemodialysis system including priming sequence and methods of same |
US10695479B2 (en) | 2007-10-24 | 2020-06-30 | Baxter International Inc. | Renal therapy machine and method including a priming sequence |
US9415150B2 (en) | 2007-11-09 | 2016-08-16 | Baxter Healthcare S.A. | Balanced flow dialysis machine |
US11052180B2 (en) | 2007-11-09 | 2021-07-06 | Baxter International Inc. | Balanced flow dialysis machine |
US8992463B2 (en) | 2007-11-09 | 2015-03-31 | Baxter International Inc. | Balanced flow dialysis machine |
US11931492B2 (en) | 2007-11-09 | 2024-03-19 | Baxter International Inc. | Balanced flow dialysis machine |
US10646634B2 (en) | 2008-07-09 | 2020-05-12 | Baxter International Inc. | Dialysis system and disposable set |
US11311658B2 (en) | 2008-07-09 | 2022-04-26 | Baxter International Inc. | Dialysis system having adaptive prescription generation |
US11918721B2 (en) | 2008-07-09 | 2024-03-05 | Baxter International Inc. | Dialysis system having adaptive prescription management |
US11495334B2 (en) | 2015-06-25 | 2022-11-08 | Gambro Lundia Ab | Medical device system and method having a distributed database |
US11516183B2 (en) | 2016-12-21 | 2022-11-29 | Gambro Lundia Ab | Medical device system including information technology infrastructure having secure cluster domain supporting external domain |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |