DE10328435B3 - Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device - Google Patents
Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device Download PDFInfo
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- DE10328435B3 DE10328435B3 DE10328435A DE10328435A DE10328435B3 DE 10328435 B3 DE10328435 B3 DE 10328435B3 DE 10328435 A DE10328435 A DE 10328435A DE 10328435 A DE10328435 A DE 10328435A DE 10328435 B3 DE10328435 B3 DE 10328435B3
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- 238000011282 treatment Methods 0.000 title claims abstract description 32
- 239000008280 blood Substances 0.000 title claims abstract description 28
- 210000004369 blood Anatomy 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000385 dialysis solution Substances 0.000 claims abstract description 141
- 239000000126 substance Substances 0.000 claims abstract description 30
- 239000012141 concentrate Substances 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 4
- 230000000704 physical effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000002596 correlated effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000502 dialysis Methods 0.000 description 13
- 239000012530 fluid Substances 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 5
- 238000000108 ultra-filtration Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000036512 infertility Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000001631 haemodialysis Methods 0.000 description 2
- 230000000322 hemodialysis Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- -1 For example Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
-
- 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
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1601—Control or regulation
- A61M1/1613—Profiling or modelling of patient or predicted treatment evolution or outcome
-
- 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
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1601—Control or regulation
- A61M1/1617—Control or regulation using measurements made during a temporary variation of a characteristic of the fresh dialysis fluid
-
- 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
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
- A61M1/1672—Apparatus for preparing dialysates using membrane filters, e.g. for sterilising the dialysate
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/60—General characteristics of the apparatus with identification means
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/70—General characteristics of the apparatus with testing or calibration facilities
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur extrakorporalen Blutbehandlung mit einer Einrichtung zur Überprüfung eines Sterilfilters, der in einem Dialysierflüssigkeitsweg der Blutbehandlungsvorrichtung angeordnet ist. Darüber hinaus betrifft die Erfindung ein Verfahren zum Überprüfen eines in einem Dialysierflüssigkeitsweg einer Vorrichtung zur extrakorporalen Blutbehandlung angeordneten Sterilfilters vor Beginn der extrakorporalen Blutbehandlung.The The invention relates to a device for extracorporeal Blood treatment with a device for checking a sterile filter, the in a dialysis fluid path the blood treatment device is arranged. Furthermore The invention relates to a method for checking a in a dialysis fluid a device for extracorporeal blood treatment arranged Sterile filters before starting the extracorporeal blood treatment.
Es ist bekannt, die Dialysierflüssigkeit on-line aus frischem Wasser und einem oder mehreren Konzentraten herzustellen. Das Frischwasser weist in der Regel keine Keime auf und die Konzentrate sind üblicherweise steril, es kann jedoch nicht sichergestellt werden, dass die on-line hergestellte Dialysierflüssigkeit immer den sehr hohen Anforderungen an die Sterilität entspricht, die bei extrakorporalen Blutbehandlungen gestellt werden.It is known, the dialysis fluid on-line from fresh water and one or more concentrates manufacture. The fresh water usually has no germs and the concentrates are common sterile, however, it can not be guaranteed that the on-line prepared dialysis fluid always meets the very high sterility requirements, which are provided in extracorporeal blood treatments.
Bei der Hämodiafiltration ist es bekannt, die Substitutionsflüssigkeit on-line aus der Dialysierflüssigkeit herzustellen. Insbesondere die Substitutionsflüssigkeit hat den hohen Anforderungen an die Sterilität zu genügen.at hemodiafiltration it is known, the substitution fluid on-line from the dialysis fluid manufacture. In particular, the substitution liquid has the high requirements to the sterility to suffice.
Um
die Sterilität
der Dialysier- und Substitutionsflüssigkeit sicherzustellen, finden
in den bekannten Blutbehandlungsvorrichtungen Sterilfilter Verwendung,
die nach ein- oder mehrmaligem Gebrauch ausgetauscht werden können. Die
In der Praxis ist sicherzustellen, dass ein für eine Blutbehandungsvorrichtung vorgesehener Sterilfilter auch installiert ist. Ansonsten besteht die Gefahr, dass die Dialysierflüssigkeit und/oder Substitutionsflüssigkeit nicht steril ist. Die automatische Erkennung, ob die Vorrichtung mit einem Filter bestückt ist, macht im allgemeinen einen zusätzlichen apparativen Aufwand erforderlich.In In practice, make sure you have one for a blood treatment device provided sterile filter is also installed. Otherwise exists the danger of having the dialysis fluid and / or substitution fluid not sterile. The automatic detection of whether the device equipped with a filter is, makes in general an additional expenditure on equipment required.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur extrakorporalen Blutbehandlung zu schaffen, die eine Überprüfung des Sterilfilters mit einem relativ geringen zusätzlichen apparativen Aufwand erlaubt. Eine weitere Aufgabe der Erfindung liegt darin, ein Verfahren zum Überprüfen eines Sterilfilters einer extrakorporalen Blutbehandlungsvorrichtung anzugeben, das einen nur verhältnismäßig geringen apparativen Aufwand erfordert.Of the Invention is therefore based on the object, a device for to create extracorporeal blood treatment, which is a review of the Sterile filter with a relatively small additional equipment allowed. Another object of the invention is to provide a method to check one Indicate sterile filters of an extracorporeal blood treatment device, the one only relatively small requires equipment.
Die Lösung dieser Aufgaben erfolgt erfindungsgemäß mit den in den Patentansprüchen 1 und 10 angegebenen Merkmalen. Vorteilhafte Ausführungen der Erfindung sind Gegenstand der Unteransprüche.The solution These objects are achieved according to the invention with the in claims 1 and 10 specified characteristics. Advantageous embodiments of the invention are Subject of the dependent claims.
Die Überprüfung des Sterilfilters beruht gemäß der Erfindung auf der Bestimmung des Zeitintervalls zwischen einer im Dialysierflüssigkeitsweg stromauf des Sterilfilters initiierten Veränderung einer physikalischen und/oder chemischen Eigenschaft der Dialysierflüssigkeit und der Detektion der Veränderung der Eigenschaft der Dialysierflüssigkeit im Dialysierflüssigkeitsweg stromab des Sterilfilters. Aus der Länge des ermittelten Zeitintervalls kann darauf geschlossen werden, ob die Blutbehandlungsvorrichtung mit einem Sterilfilter bestückt ist. Hierzu wird die Länge des ermittelten Zeitintervalls mit einem oder mehreren vorgegebenen Referenzwerten verglichen, die für einen bzw. verschiedene Sterilfiltern unterschiedlicher Ausbildung repräsentativ sind. Anstelle eines Zeitintervalls kann aber auch eine mit dem Zeitintervall korrelierende Größe, beispielsweise die Bilanzkammertakte ausgewertet werden, wenn die Blutbehandlungsvorrichtung über eine Bilanziereinrichtung auf Bilanzkammerbasis verfügt.The review of the Sterile filter is based on the invention on the determination of the time interval between a in the dialysis fluid upstream of the sterile filter initiated change in a physical and / or chemical property of the dialysis fluid and the detection the change the property of the dialysis fluid in the dialysis fluid path downstream of the sterile filter. From the length of the determined time interval can be concluded on whether the blood treatment device equipped with a sterile filter is. This is the length the determined time interval with one or more predetermined Reference values compared for one or different sterile filters of different training representative are. Instead of a time interval but also with the Time interval correlating size, for example the balance chamber cycles are evaluated when the blood treatment device via a Balancing institution based on the balance sheet.
Wenn die Blutbehandlungsvorrichtung nicht mit einem Sterilfilter bestückt ist, d.h. die Anschlußklemmen des Sterilfilters mit einer Schlauchleitung überbrückt sind, benötigt eine impulsartige Veränderung der physikalischen und/oder chemischen Eigenschaften der Dialysierflüssigkeit, die stromauf des Sterilfilters initiiert wird, eine geringere Laufzeit, um stromab des Sterilfilters detektiert werden zu können, als wenn die Blutbehandlungsvorrichtung mit einem Sterilfilter bestückt ist. Dies ist auf das unterschiedliche Volumen an Dialysierflüssigkeit in dem vorgegebenen Abschnitt des Dialysierflüssigkeitsweges ohne oder mit Sterilfilter zurückzuführen.If the blood treatment device is not equipped with a sterile filter, i.e. the terminals of the sterile filter are bridged with a hose line, requires one impulsive change the physical and / or chemical properties of the dialysis fluid, the upstream of the sterile filter is initiated, a shorter duration, to be detected downstream of the sterile filter, as when the blood treatment device is equipped with a sterile filter. This is due to the different volume of dialysis fluid in the given section of the dialysis fluid path without or with Attributed to sterile filters.
Der besondere Vorteil der erfindungsgemäßen Vorrichtung bzw. des erfindungsgemäßen Verfahrens liegt darin, dass eine zusätzliche Sensorik an dem Sterilfilter selbst nicht erforderlich ist. Dadurch wird der apparative Aufwand verringert.Of the particular advantage of the device or the method according to the invention is that an extra Sensor technology on the sterile filter itself is not required. This will the equipment required reduced.
Die Überprüfung des Sterilfilters kann vor der eigentlichen Dialysebehandlung erfolgen. Die Behandlung beginnt damit erst dann, wenn sichergestellt ist, dass die Blutbehandlungsvorrichtung mit dem Sterilfilter bestückt ist.The review of the Sterile filters can be done before the actual dialysis treatment. The treatment begins with it only when it is ensured that the blood treatment device is equipped with the sterile filter.
Für die Überprüfung des Sterilfilters ist unerheblich, ob nur die erste, die zweite oder beide Kammern von der Dialysierflüssigkeit durchströmt werden, deren chemische und/oder physikalische Eigenschaft verändert wird. Daher kann der Sterilfilter auch dann überprüft werden, wenn er nur zum tangentialen Durchspülen in den Durchfluss geschaltet ist.For the examination of the sterile filter is irrelevant whether only the first, the second or both chambers are flowed through by the dialysis fluid, their chemical and / or physical properties changed. Therefore, the sterile filter can also be checked if it is only connected to the tangential flushing in the flow.
Die physikalische und/oder chemische Eigenschaft der Dialysierflüssigkeit kann jede Kenngröße sein, die in der Dialysierflüssigkeit nachweisbar ist. Vorzugsweise ist die physikalische und/oder chemische Eigenschaft die Konzentration einer bestimmten Substanz in der Dialysierflüssigkeit. Die physikalische und/oder chemische Kenngröße kann aber auch beispielsweise die Temperatur, die Dichte oder der Druck sein.The physical and / or chemical property of the dialysis fluid can be any characteristic in the dialysis fluid is detectable. Preferably, the physical and / or chemical Property the concentration of a certain substance in the dialysis fluid. The physical and / or chemical characteristic can also be, for example the temperature, the density or the pressure.
Die Messung der Konzentration einer bestimmten Substanz in der Dialysierflüssigkeit, beispielsweise Na, erfolgt vorzugsweise durch Messung der elektrischen Leitfähigkeit der Dialysierflüssigkeit. Vorteilhaft ist, dass mit der Leitfähigkeitsmessung bereits von im Dialysierflüssigkeitsweg der Blutbehandlungsvorrichtungen vorgesehenen Leitfähigkeitssensoren Gebrauch gemacht werden kann.The Measuring the concentration of a specific substance in the dialysis fluid, For example, Na, is preferably carried out by measuring the electrical conductivity the dialysis fluid. Advantageous is that with the conductivity measurement already in the dialysis fluid path the blood treatment devices provided conductivity sensors Use can be made.
Zur Überprüfung des Sterilfilters genügt es, wenn die physikalische und/oder chemische Eigenschaft der Dialysierflüssigkeit nicht dauerhaft, sondern nur kurzfristig verändert wird. Vorzugsweise wird die Eigenschaft der Dialysierflüssigkeit nur für ein kurzes Zeitintervall sprunghaft verändert.To check the Sterile filters are enough it, if the physical and / or chemical property of the dialysis fluid not permanently, but only changed at short notice. Preferably the property of the dialysis fluid only for one short time interval changed abruptly.
Bei einer besonders bevorzugten Ausgestaltung der Erfindung erfolgt die Veränderung der physikalischen und/oder chemischen Eigenschaft der Dialysierflüssigkeit dadurch, dass bei der Bereitstellung der Dialysierflüssigkeit das Mischungsverhältnis von Wasser und Konzentraten) vorzugsweise nur kurzzeitig verändert wird.at a particularly preferred embodiment of the invention takes place the change the physical and / or chemical property of the dialysis fluid in that in providing the dialysis fluid the mixing ratio of water and concentrates) is preferably changed only briefly.
Neben der Überprüfung der Bestückung der Blutbehandlungsvorrichtung mit einem Sterilfilter erlaubt die erfindungsgemäße Vorrichtung bzw. das Verfahren auch die Überprüfung, ob die Blutbehandlungsvorrichtung mit einem Sterilfilter der richtigen Größe bestückt ist. Die Überprüfung der Größe des Sterilfilters erfolgt vorzugsweise durch Bestimmung des Volumens an Dialysierflüssigkeit, die durch den vorgegebenen Abschnitt des Dialyiserflüssigkeitsweges strömt, bis die Veränderung der physikalischen und/oder chemischen Eigenschaft der Dialysierflüssigkeit nachgewiesen werden kann. Dieses Volumen ist abhängig von dem Volumen des Sterilfilters, der in dem vorgegebenen Abschnitt des Dialysierflüssigkeitsweges von Dialysierflüssigkeit durchströmt wird. Ein Vergleich des ermittelten Volumens mit vorgegebenen Referenzwerten, die für die verschiedenen Typen von Sterilfiltern unterschiedlicher Größe repräsentativ sind, erlaubt die Erkennung des jeweiligen Sterilfilters.Next the review of assembly the blood treatment device with a sterile filter allows the inventive device or the procedure also checking whether the blood treatment device is equipped with a sterile filter of the correct size. The review of Size of the sterile filter is preferably carried out by determining the volume of dialysis fluid, through the given portion of the Dialyiserflüssigkeitsweges flows, until the change the physical and / or chemical property of the dialysis fluid can be detected. This volume depends on the volume of the sterile filter, in the given section of the dialysis fluid path of dialysis fluid flows through becomes. A comparison of the determined volume with predetermined reference values, the for representative of the different types of sterile filters of different sizes are, allows the detection of the respective sterile filter.
Bei einer Blutbehandlungsvorrichtung, die über eine Bilanziereinrichtung zum Bilanzieren von frischer gegen verbrauchte Dialysierflüssigkeit verfügt, die mindestens eine Bilanzkammer aufweist, in der in aufeinanderfolgenden Bilanzkammertakten jeweils eine vorbestimmte Menge an Dialysierflüssigkeit gefördert wird, erfolgt die Bestimmung des Volumens an Dialysierflüssigkeit vorteilhafterweise aus der Anzahl der Bilanzkammerntakte und der vorbestimmten Menge an Dialysierflüssigkeit.at a blood treatment device via a balancing device for balancing fresh versus used dialysis fluid features, which has at least one balance chamber in which successive Balancing chamber clocks each have a predetermined amount of dialysis fluid promoted is determined, the determination of the volume of dialysis fluid Advantageously, from the number of Bilanzkammertakte and the predetermined amount of dialysis fluid.
Im Folgenden wird ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die Zeichnungen näher erläutert.in the Below is an embodiment of the Invention explained in more detail with reference to the drawings.
Es zeigen:It demonstrate:
Die
Dialysierflüssigkeitszuführleitung
Die
Einrichtung
Zur
Bilanzierung frischer gegen verbrauchte Dialysierflüssigkeit
dient eine als Bilanzkammer ausgebildete Bilanziereinrichtung
Von
dem Auslaß der
ersten Kammer
Stromauf
des Dialysators
In
die Dialysierflüssigkeitsabführleitung
Der
Blutweg
Des
weiteren verfügt
die Dialysevorrichtung über
eine zentrale Steuereinheit
Während der
Dialysebehandlung sind das erste und zweite Absperrorgan
Zum
Durchspülen
des Sterilfilters
Auch
hier fließt
die Dialysierflüssigkeit
direkt in den Auslauf
Der
Sterilfilter
Während der
Routine zur Vorbereitung der Dialysebehandlung arbeitet die Einrichtung
Zunächst wird
der Dialysierflüssigkeitsweg
Die
Recheneinheit
In
der Recheneinheit
Die Zeitverschiebung Δt ist abhängig von dem Volumen der Dialysierflüssigkeit, die durch den vorgegebenen Teil des Dialysierflüssigkeitsweges fließt, der den sterilen Filter einschließt. Ein Sterilfilter mit einem größeren Volumen verursacht folglich eine größere Zeitverschiebung als ein Sterilfilter mit einem kleineren Volumen.The Time shift Δt depends on from the volume of the dialysis fluid, which flows through the predetermined part of the Dialysierflüssigkeitsweges, the includes the sterile filter. A sterile filter with a larger volume thus causes a greater time shift as a sterile filter with a smaller volume.
Zur Erkennung eines Sterilfilters mit einem bestimmten Volumen vergleicht die Recheneinheit die Zeitverschiebung mit vorgegebenen Grenzwerten, die jeweils für einen Sterilfilter mit einem bestimmten Volumen charakteristisch sind. Ist die Zeitverschiebung größer als der jeweils charakteristische Grenzwert, wird darauf geschlossen, dass der jeweilige Sterilfilter eingesetzt ist.to Detecting a sterile filter with a specific volume compares the arithmetic unit the time shift with predetermined limits, each for a sterile filter with a certain volume characteristic are. If the time difference is greater than the respective characteristic limit, is concluded that the respective sterile filter used is.
Bei
den beschriebenen Ausführungsbeispielen
kann der Sterilfilter
Claims (16)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10328435A DE10328435B3 (en) | 2003-06-25 | 2003-06-25 | Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device |
DE502004012409T DE502004012409D1 (en) | 2003-06-25 | 2004-05-22 | Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device |
EP04012189A EP1491222B1 (en) | 2003-06-25 | 2004-05-22 | Device for extracorporal blood treatment with equipment for checking a sterile filter and associated method |
ES04012189T ES2364138T3 (en) | 2003-06-25 | 2004-05-22 | BLOOD EXTRACORPORAL TREATMENT DEVICE WITH A EQUIPMENT TO CHECK A STERILE FILTER AND PROCEDURE TO CHECK A STERILE FILTER OF A BLOOD EXTRACORPORAL TREATMENT DEVICE. |
PL04012189T PL1491222T3 (en) | 2003-06-25 | 2004-05-22 | Device for extracorporal blood treatment with equipment for checking a sterile filter and associated method |
AT04012189T ATE506088T1 (en) | 2003-06-25 | 2004-05-22 | DEVICE FOR EXTRACORPORAL BLOOD TREATMENT HAVING A DEVICE FOR CHECKING A STERILE FILTER AND METHOD FOR CHECKING A STERILE FILTER OF AN EXTRACORPORATE BLOOD TREATMENT DEVICE |
JP2004185965A JP4406325B2 (en) | 2003-06-25 | 2004-06-24 | Apparatus for extracorporeal blood treatment having a device for inspecting a sterile filter, and method for inspecting a sterile filter of an extracorporeal blood treatment apparatus |
US10/877,189 US8182691B2 (en) | 2003-06-25 | 2004-06-24 | Apparatus for extracorporeal blood treatment with a device for checking a sterile filter, and method of checking a sterile filter of an extracorporeal blood treatment apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10328435A DE10328435B3 (en) | 2003-06-25 | 2003-06-25 | Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device |
Publications (1)
Publication Number | Publication Date |
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DE10328435B3 true DE10328435B3 (en) | 2005-03-24 |
Family
ID=33394965
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10328435A Expired - Fee Related DE10328435B3 (en) | 2003-06-25 | 2003-06-25 | Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device |
DE502004012409T Expired - Lifetime DE502004012409D1 (en) | 2003-06-25 | 2004-05-22 | Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device |
Family Applications After (1)
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DE502004012409T Expired - Lifetime DE502004012409D1 (en) | 2003-06-25 | 2004-05-22 | Device for extracorporeal blood treatment with a device for checking a sterile filter and method for checking a sterile filter of an extracorporeal blood treatment device |
Country Status (7)
Country | Link |
---|---|
US (1) | US8182691B2 (en) |
EP (1) | EP1491222B1 (en) |
JP (1) | JP4406325B2 (en) |
AT (1) | ATE506088T1 (en) |
DE (2) | DE10328435B3 (en) |
ES (1) | ES2364138T3 (en) |
PL (1) | PL1491222T3 (en) |
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---|---|---|---|---|
US6649063B2 (en) | 2001-07-12 | 2003-11-18 | Nxstage Medical, Inc. | Method for performing renal replacement therapy including producing sterile replacement fluid in a renal replacement therapy unit |
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-
2004
- 2004-05-22 PL PL04012189T patent/PL1491222T3/en unknown
- 2004-05-22 EP EP04012189A patent/EP1491222B1/en not_active Expired - Lifetime
- 2004-05-22 AT AT04012189T patent/ATE506088T1/en active
- 2004-05-22 ES ES04012189T patent/ES2364138T3/en not_active Expired - Lifetime
- 2004-05-22 DE DE502004012409T patent/DE502004012409D1/en not_active Expired - Lifetime
- 2004-06-24 US US10/877,189 patent/US8182691B2/en not_active Expired - Fee Related
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EP1491222B1 (en) | 2011-04-20 |
EP1491222A1 (en) | 2004-12-29 |
ES2364138T3 (en) | 2011-08-25 |
DE502004012409D1 (en) | 2011-06-01 |
US8182691B2 (en) | 2012-05-22 |
ATE506088T1 (en) | 2011-05-15 |
JP4406325B2 (en) | 2010-01-27 |
PL1491222T3 (en) | 2011-09-30 |
JP2005013735A (en) | 2005-01-20 |
US20050011833A1 (en) | 2005-01-20 |
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