WO2009146839A1 - Verfahren zur prüfung der durchgängigkeit eines endoskopkanals und endoskopwaschmaschine dafür - Google Patents
Verfahren zur prüfung der durchgängigkeit eines endoskopkanals und endoskopwaschmaschine dafür Download PDFInfo
- Publication number
- WO2009146839A1 WO2009146839A1 PCT/EP2009/003819 EP2009003819W WO2009146839A1 WO 2009146839 A1 WO2009146839 A1 WO 2009146839A1 EP 2009003819 W EP2009003819 W EP 2009003819W WO 2009146839 A1 WO2009146839 A1 WO 2009146839A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- pressure
- patency
- washing machine
- testing
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
- A61B1/121—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning post-use
- A61B1/125—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning post-use using fluid circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00057—Operational features of endoscopes provided with means for testing or calibration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
- A61B2090/701—Cleaning devices specially adapted for surgical instruments for flexible tubular instruments, e.g. endoscopes
Definitions
- the invention relates to a method according to the preamble of claim 1 and an endoscope washing machine according to the preamble of claim 3.
- Endoscopes in particular flexible endoscopes, have long and narrow channels, the z. B. serve the liquid or gas guide.
- the channels must also be flushed through.
- a prior examination of the endoscope channels for patency is required.
- Endoscope washing machines are equipped with appropriate facilities.
- a generic endoscope washing machine is known from EP 0 709 056 A1. In her for patency testing the channel under test of the endoscope is pressurized and then shut off and recorded the subsequent pressure loss. This requires very accurate pressure gauges and a sophisticated measuring process and it is difficult to distinguish between different stages of patency.
- the object of the present invention is to provide a patency test that easily provides clear results.
- the channel to be tested is subjected to a series of pressure pulses.
- a switched with a pulse train switching valve can generate this in a simple manner.
- the pressure is measured between the valve and the inlet of the duct. This results in the measured pressure pulses, which differ in a characteristic manner depending on the continuity of the channel. If the channel is normally continuous, the pulses with the full pressure stroke essentially result between 0 and the pump pressure. If the channel is blocked, the same pulses result, but with a greatly reduced pulse height and indeed at an absolutely elevated pressure level in the area of the pump pressure. If the channel is not connected at all (a vitally important test point) then the impulses with a low stroke at low absolute pressure level in the range of 0.
- An endoscope washing machine for carrying out the method according to the invention is specified in claim 3.
- An advantageous embodiment is specified in claim 4.
- the elastic Volumenveriererhus the connecting line provides a certain pressure storage with closed switching valve, so that in the case of the blocked channel, the pressure remains high even when the valve is closed.
- 1 is a block diagram of a device for füriges- examination
- FIG. 2 - 4 timing diagrams for different test results.
- FIG. 1 shows a part of an endoscope washing machine (not further described in the following), namely a device 1 for patency testing.
- This has a pump 2 which sucks with a suction line 3 rinsing liquid and via a pressure line 4 to a switching valve 5, which is controlled such that it opens in a pulse train and closes.
- a connecting line 6 leads from the switching valve 5 to the input 7 of a channel 9, shown in dashed lines in an endoscope 8, from whose outlet the liquid flows via a discharge line 10.
- a pressure gauge 12 is connected via a second line 11.
- the switching valve 5 is opened and closed in control by a pulse train and thus generates on the connecting line 6 pulses, as shown in Figures 2-4 are shown, in each case with the pressure P plotted against the time t.
- FIG. 2 shows the pulse sequence 21 of the pressure pulses measured by the pressure gauge 12 on the connecting line 6 in the case of a normally continuous channel 9.
- Figure 3 shows the measured pulse train 31 in the case of a blocked channel 9.
- the switching valve 5 When the switching valve 5 is closed, the liquid can not, or only to a very small extent through the blocked channel 9 run.
- the pressure thus remains at the minimum values 22 at a high pressure level even in the pulse pauses, as shown in FIG.
- Low-pulse pulses are measured at an absolute high pressure level.
- FIG. 4 shows the measured pulse train 41 in the event that the connecting line 6 is not properly connected to the input 7 of the channel 8. Liquid can escape from the connecting line 6 without any back pressure. It can build up in this only a very low pressure when the switching valve 5 opens. Thus, as shown in FIG. 4, pulses with a low lift result at a low pressure level.
- FIGS. 2-4 can at first glance also be understood by inexperienced personnel and simple machines without confusion. differ. It can therefore be distinguished with a very simple machine and in a short measuring time between the essential patency situations that may be present in an endoscope channel, namely normal continuous and correctly connected channel with the result of Figure 2, blocked channel with the result of Figure 3 and not connected channel with the result of Figure 4.
- the frequency of the pulses used in the illustrated device 1 for controlling the switching valve 5 may be of the order of 1 Hz.
- FIGS. 2-4 show, the resulting pressure impulses in the flank regions are somewhat rounded, which in no way disturbs the results, however, in which only the determination of the characteristic differences between FIGS. 2 to 4 is important. For the exact pressure pulse shape does not matter. Only the respective maximum values 23 and minimum values 22 have to be determined.
- the connecting line 6 should have a certain volume elasticity. You can z. B. be designed as elastic hose or connected to an elastic expansion vessel or the like. This ensures a certain pressure storage, which makes it possible to hold high the pressure according to FIG. 3 when the switching valve 5 is closed.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980120158XA CN102046066B (zh) | 2008-06-03 | 2009-05-28 | 用于检验内窥镜通道贯通性的方法和所用的内窥镜清洗机 |
EP09757222.6A EP2280633B1 (de) | 2008-06-03 | 2009-05-28 | Verfahren zur prüfung der durchgängigkeit eines endoskopkanals und endoskopwaschmaschine dafür |
JP2011512008A JP5289563B2 (ja) | 2008-06-03 | 2009-05-28 | 内視鏡管の開通性を試験する方法及び該方法のための内視鏡洗浄装置 |
US12/996,231 US8758519B2 (en) | 2008-06-03 | 2009-05-28 | Method for testing the patency of an endoscopic channel and an endoscope washing machine for same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026445.8 | 2008-06-03 | ||
DE102008026445A DE102008026445A1 (de) | 2008-06-03 | 2008-06-03 | Verfahren zur Prüfung der Durchgängigkeit eines Endoskopkanales und Endoskopwaschmaschine dafür |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009146839A1 true WO2009146839A1 (de) | 2009-12-10 |
Family
ID=40942430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/003819 WO2009146839A1 (de) | 2008-06-03 | 2009-05-28 | Verfahren zur prüfung der durchgängigkeit eines endoskopkanals und endoskopwaschmaschine dafür |
Country Status (6)
Country | Link |
---|---|
US (1) | US8758519B2 (de) |
EP (1) | EP2280633B1 (de) |
JP (1) | JP5289563B2 (de) |
CN (1) | CN102046066B (de) |
DE (1) | DE102008026445A1 (de) |
WO (1) | WO2009146839A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016200754A1 (de) | 2016-01-20 | 2017-07-20 | Olympus Winter & Ibe Gmbh | Dichtigkeitsprüfsystem und Verfahren zum Betreiben eines Dichtigkeitsprüfsystems für chirurgische Instrumente |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102124384B (zh) | 2008-07-10 | 2016-10-12 | 3M创新有限公司 | 粘弹性光导 |
WO2010006102A2 (en) * | 2008-07-10 | 2010-01-14 | 3M Innovative Properties Company | Retroreflective articles and devices having viscoelastic lightguide |
US9285531B2 (en) | 2008-08-08 | 2016-03-15 | 3M Innovative Properties Company | Lightguide having a viscoelastic layer for managing light |
US8920574B2 (en) | 2011-10-21 | 2014-12-30 | Ethicon, Inc. | Instrument reprocessor and instrument reprocessing methods |
DE102012218754B4 (de) * | 2012-10-15 | 2014-10-30 | Olympus Winter & Ibe Gmbh | Verfahren zum Betrieb einer Reinigungsmaschine |
DE102013216532A1 (de) * | 2013-08-21 | 2015-02-26 | Olympus Winter & Ibe Gmbh | Verfahren und Vorrichtung zum Reinigen eines chirurgischen Instruments |
CN114588328A (zh) | 2016-06-09 | 2022-06-07 | C·R·巴德股份有限公司 | 用于矫正和防止导管阻塞的系统和方法 |
DE102017111628B4 (de) | 2017-05-29 | 2024-10-17 | Olympus Winter & Ibe Gmbh | Optische Überprüfung des Adapteranschlusses einer Aufbereitungsvorrichtung für ein chirurgisches Instrument |
EP3449804B1 (de) * | 2017-08-31 | 2022-08-17 | Cantel (Production) Germany GmbH | Verfahren und vorrichtung zur gleichzeitigen adapteranschlussüberprüfung und zur durchgängigkeitsüberprüfung von endoskopkanälen |
IT201800009852A1 (it) * | 2018-10-29 | 2020-04-29 | Medical Devices Group Srl | Metodo per determinare dimensione e tipologia di un endoscopio flessibile |
US20220330794A1 (en) * | 2021-04-16 | 2022-10-20 | Olympus Medical Systems Corp. | Endoscope reprocessor and actuation method for endoscope reprocessor |
DE102022131781A1 (de) * | 2022-11-29 | 2024-05-29 | Olympus Winter & Ibe Gmbh | Verfahren und System zum Selbstprüfen einer Endoskop-Wiederaufbereitungseinrichtung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0709056A1 (de) * | 1994-10-27 | 1996-05-01 | Fujinon Medical Holland B.V. | Verfahren und Vorrichtung zum Reinigen und Sterilisieren von Endoskopen |
EP0711529A1 (de) * | 1994-11-11 | 1996-05-15 | NETZSCH NEWAMATIC GmbH | Verfahren zum Prüfen und Reinigen von Instrumenten für die minimal invasive Chirurgie oder minimal invasive Untersuchung von Körperhöhlen |
EP1779769A2 (de) * | 2005-10-28 | 2007-05-02 | Ethicon, Inc. | Verfahren zur Detektion einer korrekten Verbindung eines Endoskops zu einem Reinigungssystem |
US20070100204A1 (en) * | 2005-11-02 | 2007-05-03 | Minntech Corporation | Endoscope reprocessor connectivity apparatus and method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5279799A (en) * | 1990-10-23 | 1994-01-18 | Hamo Ag | Apparatus for cleaning and testing endoscopes |
JP3258438B2 (ja) * | 1993-05-13 | 2002-02-18 | オリンパス光学工業株式会社 | 内視鏡用洗浄消毒装置 |
JP2009226193A (ja) * | 2008-02-27 | 2009-10-08 | Olympus Medical Systems Corp | 内視鏡洗浄消毒装置 |
-
2008
- 2008-06-03 DE DE102008026445A patent/DE102008026445A1/de not_active Withdrawn
-
2009
- 2009-05-28 CN CN200980120158XA patent/CN102046066B/zh active Active
- 2009-05-28 EP EP09757222.6A patent/EP2280633B1/de active Active
- 2009-05-28 JP JP2011512008A patent/JP5289563B2/ja active Active
- 2009-05-28 WO PCT/EP2009/003819 patent/WO2009146839A1/de active Application Filing
- 2009-05-28 US US12/996,231 patent/US8758519B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0709056A1 (de) * | 1994-10-27 | 1996-05-01 | Fujinon Medical Holland B.V. | Verfahren und Vorrichtung zum Reinigen und Sterilisieren von Endoskopen |
EP0711529A1 (de) * | 1994-11-11 | 1996-05-15 | NETZSCH NEWAMATIC GmbH | Verfahren zum Prüfen und Reinigen von Instrumenten für die minimal invasive Chirurgie oder minimal invasive Untersuchung von Körperhöhlen |
EP1779769A2 (de) * | 2005-10-28 | 2007-05-02 | Ethicon, Inc. | Verfahren zur Detektion einer korrekten Verbindung eines Endoskops zu einem Reinigungssystem |
US20070100204A1 (en) * | 2005-11-02 | 2007-05-03 | Minntech Corporation | Endoscope reprocessor connectivity apparatus and method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016200754A1 (de) | 2016-01-20 | 2017-07-20 | Olympus Winter & Ibe Gmbh | Dichtigkeitsprüfsystem und Verfahren zum Betreiben eines Dichtigkeitsprüfsystems für chirurgische Instrumente |
Also Published As
Publication number | Publication date |
---|---|
EP2280633B1 (de) | 2015-08-19 |
CN102046066B (zh) | 2013-01-30 |
US20110126868A1 (en) | 2011-06-02 |
DE102008026445A1 (de) | 2009-12-10 |
JP2011521751A (ja) | 2011-07-28 |
JP5289563B2 (ja) | 2013-09-11 |
EP2280633A1 (de) | 2011-02-09 |
US8758519B2 (en) | 2014-06-24 |
CN102046066A (zh) | 2011-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2280633B1 (de) | Verfahren zur prüfung der durchgängigkeit eines endoskopkanals und endoskopwaschmaschine dafür | |
EP1907690B9 (de) | Prüfeinrichtung für hochdruck-injektoren eines common-rail-einspritzsystems und verfahren zum prüfen von hochdruck-injektoren | |
DE102007036057B4 (de) | Verfahren zum Auswerten der Leistung eines Steuerventils und zugehörige Vorrichtung | |
DE112009003696T5 (de) | Elektronisches Blutdruckmessgerät, welches einen Luftverlust bestätigen kann | |
DE102012020934B4 (de) | Verfahren zum Reinigen und Desinfizieren von Endoskopen | |
DE102011082776A1 (de) | Verfahren und Vorrichtung zum Spülen von Endoskopkanälen | |
DE10260046A1 (de) | Verfahren zur Überprüfung der Reagierfähigkeit eines elektronischen Sensors sowie Vorrichtung zur Durchführung des Verfahrens | |
DE69704407T2 (de) | Verfahren und Vorrichtung zum Bestimmen der Menge von ungelöstem Gas in einem hydraulischen System | |
EP2373206A1 (de) | Testvorrichtung für endoskopwaschmaschine | |
EP3449804B1 (de) | Verfahren und vorrichtung zur gleichzeitigen adapteranschlussüberprüfung und zur durchgängigkeitsüberprüfung von endoskopkanälen | |
DE102012218754B4 (de) | Verfahren zum Betrieb einer Reinigungsmaschine | |
DE102007030003A1 (de) | Prüfverfahren zur Beurteilung von Kraftstoffinjektoren | |
DE102010009138A1 (de) | Befüllungsanlage zum Befüllen von Behältnissen und Betriebsverfahren für eine Befüllungsanlage zum Befüllen von Behältnissen | |
EP1529484B1 (de) | Verfahren und Vorrichtung zur Analyse von Endoskopkanälen | |
DE1173274B (de) | Anordnung zum Pruefen einer Vielzahl von Rohren in ununterbrochener Folge auf Dichtigkeit | |
DE102019007207A1 (de) | Testeinrichtung zur Untersuchung von einem Korrosionsverhalten, insbesondere von Spannungsrisskorrosion, an einer unter Zugspannung gesetzten Probe sowie Testsystem | |
DE102021103867B4 (de) | Verfahren und Einrichtung zur sequentiellen Prüfung von Filtern und deren Verwendung | |
DE10348806B3 (de) | Hochdruckwasserstrahl-Anlage mit Prüfdüse | |
DE102021108493B4 (de) | Reinigungs- und Desinfektionsautomat und Verfahren zur Dichtigkeitsprüfung eines Endoskops | |
DE2324613C3 (de) | Verfahren und Vorrichtung zum Prüfen von Gaszählern | |
CH711197A1 (de) | Kerzenfilter-Gehäuse zur Herstellung eines sterilen Mediums. | |
DE10312868A1 (de) | Abfragevorrichtung, pneumatisches Handhabungsgerät und Verfahren hierfür | |
DE102009002618A1 (de) | Reinigungs- und Filtrationsanlage | |
DE102004045987B4 (de) | Verfahren und Vorrichtung zur automatischen Pfüfung eines elektronischen Blutdruckmessers | |
DE102019203583A1 (de) | Kaffeeautomat |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980120158.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09757222 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009757222 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011512008 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12996231 Country of ref document: US |