DE202004001194U1 - Sterilizing equipment for water circuits, in a hypothermic apparatus to control blood temperature in extra corporeal blood perfusion during surgery, has UV lamps at the transparent hoses of the water circuits - Google Patents
Sterilizing equipment for water circuits, in a hypothermic apparatus to control blood temperature in extra corporeal blood perfusion during surgery, has UV lamps at the transparent hoses of the water circuits Download PDFInfo
- Publication number
- DE202004001194U1 DE202004001194U1 DE200420001194 DE202004001194U DE202004001194U1 DE 202004001194 U1 DE202004001194 U1 DE 202004001194U1 DE 200420001194 DE200420001194 DE 200420001194 DE 202004001194 U DE202004001194 U DE 202004001194U DE 202004001194 U1 DE202004001194 U1 DE 202004001194U1
- Authority
- DE
- Germany
- Prior art keywords
- water circuits
- hoses
- lamps
- hypothermic
- primary
- 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 - Lifetime
Links
- 230000002631 hypothermal effect Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 230000001954 sterilising effect Effects 0.000 title abstract 2
- 239000008280 blood Substances 0.000 title description 3
- 210000004369 blood Anatomy 0.000 title description 3
- 230000008081 blood perfusion Effects 0.000 title 1
- 238000001356 surgical procedure Methods 0.000 title 1
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 8
- 239000004945 silicone rubber Substances 0.000 claims description 7
- 241000195493 Cryptophyta Species 0.000 claims description 4
- -1 methyl-vinyl Chemical group 0.000 claims description 4
- 238000011109 contamination Methods 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 239000013529 heat transfer fluid Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 3
- 244000052616 bacterial pathogen Species 0.000 abstract description 3
- 239000010453 quartz Substances 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/0085—Devices for generating hot or cold treatment fluids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Toxicology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
Hypothermiegeräte sind mobile, von Wasseranschlüssen unabhängige Zweikreis-Heiz-/ Kühlgeräte. Sie werden bestimmungsgemäß zur kontrollierten Temperierung von zwei Wasserkreisläufen während einer extrakorporalen Perfusion eingesetzt. Sie finden beispielsweise bei der Temperierung von Blut im Oxigenator oder von Kühl- bzw. Heizmatten bei Operationen Verwendung. Siehe hierzu Gebrauchsanweisung "Hypothermiegerät" der Fa Stöckert Instrumente GmbH, München, Version 05/2003Hypothermic devices are mobile dual-circuit heating / Cooling units. she are intended to be controlled Temperature control of two water circuits during one extracorporeal Perfusion used. You can find it, for example, in temperature control of blood in the oxygenator or of cooling or heating mats during operations Use. See also the "Hypothermia device" instructions for use from Stöckert Instrumente GmbH, Munich, Version 05/2003
Der Anschluss der Oxygenatoren und der Kühl-/Heizmatten an das Hypothermiegerät erfolgt üblicher Weise über gewebeverstärkte, transparente PVC-Schläuche.The connection of the oxygenators and the cooling / heating mats to the hypothermic device is usually done using fabric-reinforced, transparent PVC hoses.
Ein wesentliches Problem beim Einsatz von Hypothermiegeräten ist der Umstand, dass die Wärmeträgerflüssigkeit Wasser im Praxisbetrieb bereits wenige Tage nach der Reinigung des Gerätes verkeimt bzw. veralgt. Diese geschieht in der Regel selbst in den Fällen, bei denen die Reinigung des Hypothermiegerätes gemäß Wartungsplan im Wochenabstand durchgeführt wird.A major problem in use of hypothermic devices is the fact that the heat transfer fluid Water in practice only a few days after cleaning the equipment germs or algae. This usually happens even in the cases where the cleaning of the hypothermia device according to the maintenance schedule at weekly intervals carried out becomes.
Negativ wirkt sich diese Verkeimung bzw. Veralgung insbesondere dadurch aus, dass die Schläuche des Hypothermiegerätes im OP-Raum beispielsweise an den Wärmetauscher des Oxigenators angeschlossen werden und so – auf Grund eines fast unvermeidlichen Wasseraustritts aus dem Leitungssystem – die dabei austretenden Keime den sterilen OP-Raum kontaminieren.This contamination has a negative effect or algae in particular from the fact that the hoses of the Hypothermiegerätes in the operating room, for example on the heat exchanger of the oxygen generator be connected and so - on Because of an almost inevitable water leak from the pipe system - the escaping Germinate the sterile operating room contaminate.
Um diese unerwünschten Verunreinigungen im Wärmeträgerkreislauf möglichst gering zu halten, behilft man sich vorzugsweise mit Chemikalienzusätzen.To avoid these undesirable impurities Heat transfer circuit preferably to keep it low, preferably using chemical additives.
Alternativ kommen auch Filter zum Einsatz.Alternatively, filters are also used Commitment.
Als nachteilig bei den Chemikalienzusätze hat sich gezeigt, dass sich diese – abhängig von der Konstruktion des Hypothermiegerätes – teilweise als wirkungslos erweisen bzw. eine Wirkung nur über einen recht begrenzten Zeitraum von wenigen Tagen erreicht wird. Darüber hinaus ist die Wirkungsweise der Desinfektionsmittel ständig zu überprüfen, gegebenenfalls ist nachzudosieren.As a disadvantage with the chemical additives has shown that this - depending on the construction of the hypothermia device - sometimes as ineffective prove or an effect only over a fairly limited period of a few days is reached. About that In addition, the effectiveness of the disinfectant must be checked continuously, if necessary is to be added.
Als problematisch wird auch der chemikalienbedingte Materialabtrag in den Hypothermiegeräten, vor allem in den Wärmetauschern bewertet.The chemical-related is also problematic Material removal in the hypothermic devices, especially in the heat exchangers rated.
Besonders gefährlich sind evtl. auftretende Leckagen, da die austretenden, aggressiven Chemikalien eine Gefahr für Leib und Leben des Patienten darstellen.Any that occur are particularly dangerous Leaks as the escaping, aggressive chemicals pose a danger for body and represent the patient's life.
Nachteilig an den Filtern sind die hohen Kosten für ihren Ersatz, außerdem verhindern sie das Wachstum der Keime und Algen nicht, sie neigen daher sehr leicht zum Verstopfen. Bereits kurze Zeit nach ihrem Einbau wird der Fluss des Wärmeträgers reduziert von typischer Weise 20 l/ min auf ca. 8 l/min, was sich dahingehend nachteilig auswirkt, dass sich die Abkühl- oder Aufwärmzeiten des Blutes in unzulässiger Weise verlängern.The filters are disadvantageous high cost of their replacement, moreover do not prevent the growth of germs and algae, they tend therefore very easy to clog. Shortly after installation the flow of the heat transfer medium is reduced from typically 20 l / min to approx. 8 l / min, which is why adversely affects that the cooling or warming up of the blood in improper Extend way.
Aufgabe der Erfindung war es demnach, ein Zusatzaggregat für Hypothermiegeräte zur Verfügung zu stellen, das auch nach mehrwöchigem Betrieb die Verkeimung bzw. Veralgung weitgehend verhindert und das ohne Chemikalienzusatz und/oder ohne Filter auskommt.The object of the invention was therefore an additional unit for hypothermia to disposal to ask that even after several weeks Operation largely prevents contamination and algae growth that works without the addition of chemicals and / or without a filter.
Die Lösung der Aufgabe gelingt durch ein Aggregat mit den Merkmalen des Anspruchs 1 in der nicht naheliegenden Kombination einer UV-Lampe mit sehr hohen Bestrahlungsstärke aber geringer Lichtleistung und dem Ersatz von gewebeverstärkten PVC-Schläuchen durch unverstärkte Schläuche aus Silikonkautschuk.The task is solved by an aggregate with the features of claim 1 in the not obvious Combination of a UV lamp with very high irradiance low light output and the replacement of fabric-reinforced PVC hoses with unreinforced hoses made of silicone rubber.
Erfindungsgemäß liegt die Bestrahlungsstärke der UV-Lampe zwischen 360 und 600 J/m2, bevorzugt zwischen 400 und 500 J/m2, die Leistungsaufnahme des UV-Generators im Bereich zwischen 3 und 30 W, bevorzugt zwischen 6 W und 21 W, und die Durchflussmenge im Primär- und/oder Sekundärkreislauf zwischen 5 und 25 l/ Minute.According to the invention, the irradiance of the UV lamp is between 360 and 600 J / m 2 , preferably between 400 and 500 J / m 2 , the power consumption of the UV generator is in the range between 3 and 30 W, preferably between 6 W and 21 W, and the flow rate in the primary and / or secondary circuit between 5 and 25 l / minute.
Ein wesentlicher Teil der Erfindung ist die Auswahl der Bestrahlungsstärke der UV-C-Lampe, die gemessen an der Linie 254 nm, im Bereich zwischen 360 und 600 J/m2 liegt. Die Lichtleistung der UV-C-Lampe ist gering, ihre Leistungsaufnahme beträgt, je nach Größe und Ausführung des Hypothermiegerätes, zwischen 3 und 30 Watt.An essential part of the invention is the selection of the irradiance of the UV-C lamp which, measured on the line 254 nm, lies in the range between 360 and 600 J / m 2 . The light output of the UV-C lamp is low, depending on the size and design of the hypothermic device, its power consumption is between 3 and 30 watts.
Ein weiterer wesentlicher Teil der Erfindung ist, dass die sonst üblichen, gewebeverstärkten Weich-PVC-Schläuche durch solche aus Silikonkautschuk ersetzt werden. Diese Schläuche sind transparent und neben ihrer Beständigkeit gegen UV-C-Strahlung erfindungsgemäß unverstärkt, additivfrei sowie knickbeständig ausgeführt.Another essential part of the Invention is that the otherwise usual fabric-reinforced soft PVC hoses those made of silicone rubber can be replaced. These hoses are transparent and in addition to their durability Unreinforced, UV-C radiation, additive-free and kink-resistant.
Zwar sind in der Umwelttechnik UV-Anlagen bekannt, die zum Abbau von Schadstoffen in Trinkwasser, Prozesswasser oder Brauchwasser eingesetzt werden. Derartige UV-Anlagen sind allerdings zur Lösung der Aufgabenstellung ungeeignet, da sie zwar über eine hohe Lichtleistung verfügen – bei einer Leistungsaufnahme von einigen hundert Watt -, ihre Bestrahlungsstärke, gemessen an der Linie 254 nm, liegt jedoch üblicher Weise im Bereich von lediglich 35 – 60 J/m2, bis hin zu 180 J/m2.In environmental technology, UV systems are known which are used to break down pollutants in drinking water, process water or industrial water. However, such UV systems are unsuitable for solving the task because, although they have a high light output - with a power consumption of a few hundred watts - their irradiance, measured on the line 254 nm, is usually in the range of only 35 - 60 J / m 2 , up to 180 J / m 2 .
Das folgende Ausführungsbeispiel gemäß
Im Detail besteht das erfindungsgemäße Zusatzaggregat aus einem UV-C-Generator, der in den Primär- und/oder Sekundärkreislauf des Hypothermiegerätes einbezogen ist.The additional unit according to the invention exists in detail from a UV-C generator in the primary and / or secondary circuit of the hypothermic device is involved.
Das handelsübliche Hypothermiegerät (
- 22
- – Lampengehäuse- lamp housing
- 33
- – Quarzrohr - quartz tube
- 44
- – UV-C-Lampe - UV-C lamp
- 55
- – Lampenanschluss- lamp connection
- 66
- – einem 3,0 m und einem 2,8 m langen Schlauchstück aus nichtarmiertem Silikonkautschuk - one 3.0 m and a 2.8 m long piece of hose made of non-reinforced silicone rubber
Bei dem Silikonkautschuk des Schlauches handelt es sich um ein peroxidisch vernetztes Heißvulkanisat auf Basis Methyl-Vinyl-Polysiloxan unter Verwendung von Füllstoffen auf Basis SiO2.The silicone rubber of the hose is a peroxidically cross-linked hot vulcanizate based on methyl vinyl polysiloxane using fillers based on SiO 2 .
Der Innendurchmesser des Silikonkautschuk-Schlauches beträgt 12,7 mm, die Wandstärke 3,2 mm, der Außendurchmesser damit 15,9 mm.The inside diameter of the silicone rubber hose is 12.7 mm, the wall thickness 3.2 mm, the outer diameter thus 15.9 mm.
Die Leistungsdaten des erfindungsgemäßen Zusatzaggregates sind folgende:The performance data of the additional unit according to the invention are the following:
- – Durchflussmenge: Variabel, mindestens jedoch 5 l/min bei einem Wasservolumen von wenigstens 20 l- flow rate: Variable, but at least 5 l / min with a water volume of at least 20 l
- – Leistungsaufnahme der UV-Lampe: 18 W- power consumption the UV lamp: 18 W.
- – Bestrahlungsstärke, gemessen an der Linie 254 nm: 440 J/m2 - Irradiance, measured on the line 254 nm: 440 J / m 2
Die nachfolgende Tabelle zeigt die Wirksamkeit des erfindungsgemäßen Zusatzaggregates mit integriertem UV-C-Generator im Vergleich zu alternativen Verfahren – bezogen auf einen einwöchigen Betrieb.The following table shows the Effectiveness of the additional unit according to the invention with integrated UV-C generator compared to alternative processes - related on a week long Business.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200420001194 DE202004001194U1 (en) | 2004-01-28 | 2004-01-28 | Sterilizing equipment for water circuits, in a hypothermic apparatus to control blood temperature in extra corporeal blood perfusion during surgery, has UV lamps at the transparent hoses of the water circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200420001194 DE202004001194U1 (en) | 2004-01-28 | 2004-01-28 | Sterilizing equipment for water circuits, in a hypothermic apparatus to control blood temperature in extra corporeal blood perfusion during surgery, has UV lamps at the transparent hoses of the water circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE202004001194U1 true DE202004001194U1 (en) | 2004-04-01 |
Family
ID=32087844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200420001194 Expired - Lifetime DE202004001194U1 (en) | 2004-01-28 | 2004-01-28 | Sterilizing equipment for water circuits, in a hypothermic apparatus to control blood temperature in extra corporeal blood perfusion during surgery, has UV lamps at the transparent hoses of the water circuits |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE202004001194U1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008076814A2 (en) | 2006-12-13 | 2008-06-26 | Cincinnati Sub-Zero Products, Inc. | Fluid disinfection unit for patient temperature control system |
| DE202013011109U1 (en) | 2013-12-10 | 2014-01-28 | Resuscitec Gmbh | Cooling unit for a heat exchanger for the temperature control of blood guided in an extracorporeal blood circulation |
| GB2547727A (en) * | 2016-02-29 | 2017-08-30 | Gold Standard Phantoms Ltd | Perfusion phantom |
| DE102017000426A1 (en) | 2017-01-17 | 2018-07-19 | Fachhochschule Dortmund | Method and disinfection device for disinfecting fluid circuits in a device, in particular for water circuits in a hypothermia device |
| DE102017211671A1 (en) | 2017-07-07 | 2019-01-10 | Resuscitec Gmbh | Device for tempering based on a chemical reaction and use as a temperature control unit for a heat exchanger |
-
2004
- 2004-01-28 DE DE200420001194 patent/DE202004001194U1/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008076814A2 (en) | 2006-12-13 | 2008-06-26 | Cincinnati Sub-Zero Products, Inc. | Fluid disinfection unit for patient temperature control system |
| EP2097053A2 (en) * | 2006-12-13 | 2009-09-09 | Cincinnati Sub-Zero Products, Inc. | Fluid disinfection unit for patient temperature control system |
| EP2097053A4 (en) * | 2006-12-13 | 2012-07-11 | Cincinnati Sub Zero Products Inc | Fluid disinfection unit for patient temperature control system |
| US8460353B2 (en) | 2006-12-13 | 2013-06-11 | Cincinnati Sub-Zero Products, Inc. | Fluid disinfection unit for patient temperature control system |
| DE202013011109U1 (en) | 2013-12-10 | 2014-01-28 | Resuscitec Gmbh | Cooling unit for a heat exchanger for the temperature control of blood guided in an extracorporeal blood circulation |
| WO2015086147A1 (en) | 2013-12-10 | 2015-06-18 | Resuscitec Gmbh | Cooling unit for a heat exchanger for controlling the temperature of blood conducted in an extracorporeal circuit |
| GB2547727A (en) * | 2016-02-29 | 2017-08-30 | Gold Standard Phantoms Ltd | Perfusion phantom |
| GB2547727B (en) * | 2016-02-29 | 2022-05-04 | Gold Standard Phantoms Ltd | Perfusion phantom |
| DE102017000426A1 (en) | 2017-01-17 | 2018-07-19 | Fachhochschule Dortmund | Method and disinfection device for disinfecting fluid circuits in a device, in particular for water circuits in a hypothermia device |
| WO2018133896A1 (en) | 2017-01-17 | 2018-07-26 | Fachhochschule Dortmund | Method and disinfection device for disinfecting liquid circuits in a machine, in particular for water circuits in a hypothermia machine |
| DE102017211671A1 (en) | 2017-07-07 | 2019-01-10 | Resuscitec Gmbh | Device for tempering based on a chemical reaction and use as a temperature control unit for a heat exchanger |
| DE102017211671B4 (en) | 2017-07-07 | 2020-06-04 | Resuscitec Gmbh | Device for temperature control based on a chemical reaction and use as a temperature control unit for a heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20040506 |
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| R163 | Identified publications notified |
Effective date: 20040325 |
|
| R081 | Change of applicant/patentee |
Owner name: RAUMEDIC AG, DE Free format text: FORMER OWNER: REHAU AG + CO., 95111 REHAU, DE Effective date: 20041007 |
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| R150 | Term of protection extended to 6 years |
Effective date: 20070221 |
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| R151 | Term of protection extended to 8 years |
Effective date: 20100331 |
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| R152 | Term of protection extended to 10 years |
Effective date: 20120412 |
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| R071 | Expiry of right | ||
| R071 | Expiry of right |