+

WO2017207949A1 - Method for drying a medical device - Google Patents

Method for drying a medical device Download PDF

Info

Publication number
WO2017207949A1
WO2017207949A1 PCT/FR2017/051405 FR2017051405W WO2017207949A1 WO 2017207949 A1 WO2017207949 A1 WO 2017207949A1 FR 2017051405 W FR2017051405 W FR 2017051405W WO 2017207949 A1 WO2017207949 A1 WO 2017207949A1
Authority
WO
WIPO (PCT)
Prior art keywords
endoscope
dinitrogen
drying
channels
disinfection
Prior art date
Application number
PCT/FR2017/051405
Other languages
French (fr)
Inventor
Daniel VINTELER
Marlène HORGNIES-COURTIER
Christian AFFRE
Jean-François BIRY
Original Assignee
Plasmabiotics
Soluscope
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Plasmabiotics, Soluscope filed Critical Plasmabiotics
Publication of WO2017207949A1 publication Critical patent/WO2017207949A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • 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
    • A61B1/123—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 washing machines
    • 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
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A61L2/186—Peroxide solutions
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/17—Combination with washing or cleaning means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20—Targets to be treated
    • A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps

Definitions

  • the present invention relates to a rapid method of drying an endoscope with one or more channels integrated in an endoscope washer-disinfector.
  • Endoscopy is a medical imaging technique widely used today, particularly because of its ease of construction, accuracy and low invasiveness. Endoscopes are used either to establish a diagnosis (diagnostic endoscopy) or to treat a disease or trauma (operative endoscopy). However, their handling and cleaning are very specific: cleaning, washing and disinfection are necessary.
  • the endoscope is cleaned immediately after the examination, with a suitable non-abrasive detergent, then rinsed.
  • the total time of this cleaning step should not be less than 15 minutes.
  • the endoscope is washed and disinfected with a detergent for the washing step and with a disinfectant solution for the disinfection step.
  • a detergent for the washing step and with a disinfectant solution for the disinfection step.
  • a disinfectant solution for the disinfection step can be performed manually, or in an automatic endoscope washer-disinfector (LDE) device.
  • LDE automatic endoscope washer-disinfector
  • the endoscope undergoes a drying step: it can be partially dried using a medical compressed air gun. This last step lasts approximately 5 minutes. However, the result obtained is unsatisfactory because the drying is only partial.
  • ESETs temperature-sensitive endoscopes
  • the present invention thus relates to a method of drying channels of an endoscope, comprising the following steps:
  • a) washing and disinfecting the endoscope in an endoscope disinfector b) injecting gaseous diazote into the endoscope channels at its proximal end for a period of between 10 and 60 seconds, the flow rate of the dinitrogen being low, the dinitrogen being injected at a temperature between 10 ° C and 60 ° C, in particular to remove the residual water.
  • low flow rate is meant a flow rate of between 1 and 20 l / min
  • the overall duration of steps b) and c) is between 1 and 5 minutes. This allows ultra-fast drying.
  • the method according to the invention allows optimal drying, within a short time.
  • the first step of the process according to the invention i.e. step a) comprises washing and disinfecting the endoscope in an endoscope washer-disinfector.
  • the endoscope is clean of dirt and ready to undergo a disinfection cycle.
  • Disinfecting or “disinfecting” an element means the operation of voluntary and temporary elimination of certain germs, so as to stop or prevent an infection or the risk of infection or superinfection by microorganisms (bacteria, protozoa or viruses) pathogenic and / or undesirable. Disinfection is distinct from sterilization, which consists of the definitive elimination of certain germs.
  • Disinfection involves killing or inactivating pathogenic micro-organisms from contaminated elements, altering their structure or inhibiting their metabolism or some of their vital functions.
  • the endoscope is chemically disinfected in step a).
  • Chemical disinfection means disinfection using chemicals such as peracetic acid, glutaraldehyde, or hydrogen peroxide.
  • the disinfection is carried out in particular with one of the chemicals mentioned above, present in aqueous solution in a content between 500 and 1200 ppm, for a period of 2 to 6 minutes, and at a temperature between 37 ° C and 45 ° C. ° C.
  • the endoscope washer-disinfector (LDE) usable in step a) may be any commercially available apparatus.
  • it may be the device marketed by Soluscope under the name Soluscope Series 3 or Soluscope Series 4.
  • the endoscope according to the invention is any type of endoscope. It consists of a tube with channels (which will be introduced into the body of the patient), to which are connected a control handle and a light guide that allows the attachment of a camera and light.
  • the endoscope may be chosen in particular from bronchoscopes, colonoscopes, gastroscopes, echoendoscopes, duodenoscopes, cystoscopes and urethroscopes.
  • the method comprises the injection into the endoscope obtained in a), by its proximal end, particularly via a specific connector, nitrous; this is step b).
  • the dinitrogen is in gaseous form.
  • the connection of the arrival of dinitrogen can be done on the connection of the LDE.
  • said specific connectivity comprises three-way valves, and can be inserted on the connector that routes the fluids (water, detergent product and disinfectant, medical air or filtered).
  • the connectors used preferably comprise a dinitrogen injection system:
  • step b) dinitrogen gas is injected into the endoscope channels for a period of between 10 and 60 seconds, the flow rate of the dinitrogen being between 1 and 20 1 / min, the dinitrogen being injected at a temperature between 10 ° C and 60 ° C, especially to remove residual water.
  • This step b) is short, i.e. a few tens of seconds; it allows the effective evacuation of the liquid contained in the channels of the endoscope.
  • This step b) makes it possible in particular to eliminate the residual water, in particular the water resulting from the previous step of chemical disinfection of the endoscope.
  • the process according to the invention comprises a step c) of drying for a period of between 30 and 240 seconds, by injecting gaseous dinitrogen at a temperature of between 40 ° C. and 65 ° C., the flow rate of the dinitrogen being between 20 and 100 1 / min. Drying is therefore by injection of gaseous dinitrogen, in the channels of the endoscope, by its proximal end.
  • An Olympus endoscope is placed in an endoscope washer-disinfector to undergo a wash and disinfect cycle (step a).
  • the endoscope channels are filled with water.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Endoscopes (AREA)

Abstract

The invention relates to a method for drying the channels of an endoscope, comprising the following steps: a) washing and disinfecting the endoscope in an endoscope washer-disinfector; b) injecting gaseous dinitrogen into the endoscope channels though the proximal end for a period of between 10 and 60 seconds, the flow rate of dinitrogen being between 1 and 20 l/min, the dinitrogen being injected at a temperature of between 10°C and 60°C, in particular in order to remove any residual water; c) drying the channels of the endoscope for a period of between 30 and 240 seconds, by injecting gaseous dinitrogen at a flow rate of between 20 and 100 l/min, the dinitrogen being injected at a temperature of between 40°C and 65°C through the proximal end of the endoscope.

Description

Procédé de séchage de dispositif médical  Method of drying medical device
La présente invention se rapporte à un procédé rapide de séchage d'un endoscope à un ou plusieurs canaux intégré dans un laveur désinfecteur d'endoscopes. The present invention relates to a rapid method of drying an endoscope with one or more channels integrated in an endoscope washer-disinfector.
L'endoscopie est une technique d'imagerie médicale largement utilisée aujourd'hui, notamment en raison de sa facilité de réalisation, de sa précision et de son faible côté invasif. Les endoscopes sont ainsi utilisés soit pour établir un diagnostic (endoscopie diagnostique), soit pour traiter une maladie ou un traumatisme (endoscopie opératoire). Leur manipulation et leur nettoyage sont cependant très spécifiques : le nettoyage, le lavage et la désinfection sont nécessaires. Endoscopy is a medical imaging technique widely used today, particularly because of its ease of construction, accuracy and low invasiveness. Endoscopes are used either to establish a diagnosis (diagnostic endoscopy) or to treat a disease or trauma (operative endoscopy). However, their handling and cleaning are very specific: cleaning, washing and disinfection are necessary.
Classiquement, l'endoscope est nettoyé immédiatement après l'examen, avec un détergent non abrasif adapté, puis rincé. Le temps total de cette étape de nettoyage ne doit pas être inférieur à 15 minutes. Conventionally, the endoscope is cleaned immediately after the examination, with a suitable non-abrasive detergent, then rinsed. The total time of this cleaning step should not be less than 15 minutes.
Ensuite, l'endoscope est lavé et désinfecté avec un détergent pour l'étape de lavage et avec une solution désinfectante pour l'étape de désinfection. Ces étapes de lavage et de désinfection peuvent être réalisées manuellement, ou bien dans un dispositif laveur désinfecteur d'endoscope (LDE) automatique. De tels appareils sont capables d'effectuer des cycles complets rapidement et de façon efficace.  Then, the endoscope is washed and disinfected with a detergent for the washing step and with a disinfectant solution for the disinfection step. These washing and disinfection steps can be performed manually, or in an automatic endoscope washer-disinfector (LDE) device. Such devices are capable of performing complete cycles quickly and efficiently.
Enfin, l'endoscope subit une étape de séchage : il peut être séché partiellement à l'aide d'un pistolet à air comprimé médical. Cette dernière étape dure environ 5 minutes. Cependant, le résultat obtenu est non satisfaisant, car le séchage n'est que partiel.  Finally, the endoscope undergoes a drying step: it can be partially dried using a medical compressed air gun. This last step lasts approximately 5 minutes. However, the result obtained is unsatisfactory because the drying is only partial.
Pour un séchage plus efficace d'un endoscope, il existe une autre alternative, consistant en l'utilisation des enceintes de séchage d'endoscopes thermosensibles (ESET). Selon les fabricants, le séchage est réalisé entre 15 et 90 minutes. Cependant, un tel procédé est très long. For more efficient drying of an endoscope, there is another alternative, consisting of the use of temperature-sensitive endoscopes (ESETs). According to the manufacturers, the drying is carried out between 15 and 90 minutes. However, such a method is very long.
Il existe donc un besoin de disposer d'un procédé de séchage des endoscopes qui soit efficace, rapide, et qui n'endommage pas les endoscopes. En outre, il existe un besoin pour un procédé de séchage de ce type de matériel médical, qui soit continu avec le traitement préalable dans un LDE. La présente invention permet de répondre à ces problèmes. Notamment, la présente invention permet de sécher de manière efficace et rapide les endoscopes. Elle est en outre utilisée dans des conditions compatibles avec la sensibilité des appareils. There is therefore a need for a process for drying endoscopes that is efficient, fast, and does not damage the endoscopes. In addition, there is a need for a method of drying this type of medical equipment, which is continuous with the pretreatment in an LDE. The present invention makes it possible to respond to these problems. In particular, the present invention enables the endoscopes to be dried effectively and quickly. It is also used in conditions compatible with the sensitivity of the devices.
La présente invention se rapporte donc à un procédé de séchage de canaux d'un endoscope, comprenant les étapes suivantes : The present invention thus relates to a method of drying channels of an endoscope, comprising the following steps:
a) lavage et désinfection de l'endoscope dans un laveur désinfecteur d'endoscope, b) injection de diazote gazeux dans les canaux d'endoscope par son extrémité proximale pendant une durée comprise entre 10 et 60 secondes, le débit du diazote étant faible, le diazote étant injecté à une température comprise entre 10°C et 60°C, notamment pour éliminer l'eau résiduelle. Par débit faible, on entend un débit compris entre 1 et 20 1/min, a) washing and disinfecting the endoscope in an endoscope disinfector, b) injecting gaseous diazote into the endoscope channels at its proximal end for a period of between 10 and 60 seconds, the flow rate of the dinitrogen being low, the dinitrogen being injected at a temperature between 10 ° C and 60 ° C, in particular to remove the residual water. By low flow rate is meant a flow rate of between 1 and 20 l / min,
c) séchage des canaux de l'endoscope pendant une durée comprise entre 30 et 240 secondes, par injection de diazote gazeux à un fort débit, le diazote étant injecté à une température comprise entre 40°C et 65°C. Par débit fort, on entend un débit compris entre 20 et 100 1/min. c) drying the channels of the endoscope for a period of between 30 and 240 seconds, by injecting gaseous dinitrogen at a high rate, the dinitrogen being injected at a temperature between 40 ° C and 65 ° C. High flow rate means a flow rate of between 20 and 100 l / min.
De préférence, la durée globale des étapes b) et c) est comprise entre 1 et 5 minutes. Cela permet donc un séchage ultra-rapide. Preferably, the overall duration of steps b) and c) is between 1 and 5 minutes. This allows ultra-fast drying.
En effet, couplé au laveur désinfecteur d'endoscope, le procédé selon l'invention permet un séchage optimal, dans un délai court. La première étape du procédé selon l'invention, i.e. l'étape a), comprend le lavage et la désinfection de l'endoscope dans un laveur désinfecteur d'endoscope. Indeed, coupled with the endoscope washer-disinfector, the method according to the invention allows optimal drying, within a short time. The first step of the process according to the invention, i.e. step a), comprises washing and disinfecting the endoscope in an endoscope washer-disinfector.
Lors du lavage, l'endoscope est débarrassé de souillures et prêt à subir un cycle de désinfection. During washing, the endoscope is clean of dirt and ready to undergo a disinfection cycle.
Par « désinfection » ou « désinfecter » un élément, on entend l'opération d'élimination volontaire et momentanée de certains germes, de manière à stopper ou prévenir une infection ou le risque d'infection ou surinfection par des micro-organismes (bactéries, protozoaires ou virus) pathogènes et/ou indésirables. La désinfection est distincte de la stérilisation, qui consiste en l'élimination définitive de certains germes. "Disinfecting" or "disinfecting" an element means the operation of voluntary and temporary elimination of certain germs, so as to stop or prevent an infection or the risk of infection or superinfection by microorganisms (bacteria, protozoa or viruses) pathogenic and / or undesirable. Disinfection is distinct from sterilization, which consists of the definitive elimination of certain germs.
La désinfection implique de tuer ou inactiver les micro -organismes pathogènes des éléments contaminés, en altérant leur structure ou en inhibant leur métabolisme ou certaines de leurs fonctions vitales. Disinfection involves killing or inactivating pathogenic micro-organisms from contaminated elements, altering their structure or inhibiting their metabolism or some of their vital functions.
La désinfection est donc un mode particulier de décontamination, i.e. ciblé sur les micro-organismes (bactéries, protozoaires et virus) pathogènes. De préférence dans le procédé selon l'invention, l'endoscope est désinfecté chimiquement dans l'étape a). Par désinfection chimique, on entend une désinfection à l'aide de produits chimiques tels que notamment l'acide peracétique, le glutaraldéhyde, ou le peroxyde d'hydrogène. La désinfection se fait notamment avec l'un des produits chimiques mentionnés ci- avant, présent en solution aqueuse en une teneur entre 500 et 1200 ppm, pendant une durée de 2 à 6 minutes, et à une température comprise entre 37°C et 45°C .  Disinfection is therefore a special mode of decontamination, i.e. targeted on pathogenic microorganisms (bacteria, protozoa and viruses). Preferably in the method according to the invention, the endoscope is chemically disinfected in step a). Chemical disinfection means disinfection using chemicals such as peracetic acid, glutaraldehyde, or hydrogen peroxide. The disinfection is carried out in particular with one of the chemicals mentioned above, present in aqueous solution in a content between 500 and 1200 ppm, for a period of 2 to 6 minutes, and at a temperature between 37 ° C and 45 ° C. ° C.
Le laveur désinfecteur d'endoscope (LDE) utilisable dans l'étape a) peut être tout appareil disponible commercialement. Notamment, il peut s'agir de l'appareil commercialisé par Soluscope sous la dénomination Soluscope Série 3 ou Soluscope Série 4. The endoscope washer-disinfector (LDE) usable in step a) may be any commercially available apparatus. In particular, it may be the device marketed by Soluscope under the name Soluscope Series 3 or Soluscope Series 4.
L'endoscope selon l'invention est tout type d'endoscope. Il se compose d'un tube comprenant des canaux (qui sera introduit dans le corps du patient), auquel sont reliés une poignée de commande et un guide de lumière qui permet la fixation d'une caméra et de lumière. The endoscope according to the invention is any type of endoscope. It consists of a tube with channels (which will be introduced into the body of the patient), to which are connected a control handle and a light guide that allows the attachment of a camera and light.
L'endoscope peut notamment être choisi parmi les bronchoscopes, les coloscopes, les gastroscopes, les échoendoscopes, les duodénoscopes, les cystoscopes et les uretèroscopes.  The endoscope may be chosen in particular from bronchoscopes, colonoscopes, gastroscopes, echoendoscopes, duodenoscopes, cystoscopes and urethroscopes.
Une fois l'endoscope placé dans le LDE, le lavage et la désinfection se font selon le programme adapté, de façon intégrée, dans le même appareil. Suite à cette étape a), le procédé comprend l'injection dans l'endoscope obtenu en a), par son extrémité proximale, notamment via une connectique spécifique, de diazote ; c'est l'étape b). Le diazote est sous forme gazeuse. Le branchement de l'arrivée de diazote peut se faire sur la connectique du LDE. Par exemple, ladite connectique spécifique comprend des vannes trois voies, et peut s'insérer sur la connectique qui achemine les fluides (eau, produit détergent et produit désinfectant, air médical ou filtré). Ainsi, la connectique utilisée comprend de préférence un système d'injection de diazote : Once the endoscope is placed in the LDE, the washing and disinfection are done according to the adapted program, integrated way, in the same apparatus. Following this step a), the method comprises the injection into the endoscope obtained in a), by its proximal end, particularly via a specific connector, nitrous; this is step b). The dinitrogen is in gaseous form. The connection of the arrival of dinitrogen can be done on the connection of the LDE. For example, said specific connectivity comprises three-way valves, and can be inserted on the connector that routes the fluids (water, detergent product and disinfectant, medical air or filtered). Thus, the connectors used preferably comprise a dinitrogen injection system:
sur l'extrémité proximale de l'endoscope (canal air et canal eau),  on the proximal end of the endoscope (air channel and water channel),
sur le canal d'aspiration,  on the suction channel,
sur le canal à biopsies, et  on the biopsy canal, and
sur le canal auxiliaire.  on the auxiliary channel.
Lors de l'étape b), du diazote gazeux est injecté dans les canaux d'endoscope pendant une durée comprise entre 10 et 60 secondes, le débit du diazote étant compris entre 1 et 20 1/min, le diazote étant injecté à une température comprise entre 10°C et 60°C, notamment pour éliminer l'eau résiduelle. In step b), dinitrogen gas is injected into the endoscope channels for a period of between 10 and 60 seconds, the flow rate of the dinitrogen being between 1 and 20 1 / min, the dinitrogen being injected at a temperature between 10 ° C and 60 ° C, especially to remove residual water.
Cette étape b) est courte, i.e. quelques dizaines de secondes ; elle permet l'évacuation efficace du liquide contenu dans les canaux de l'endoscope. This step b) is short, i.e. a few tens of seconds; it allows the effective evacuation of the liquid contained in the channels of the endoscope.
Cette étape b) permet notamment d'éliminer l'eau résiduelle, notamment l'eau résultant de l'étape préalable de désinfection chimique de l'endoscope.  This step b) makes it possible in particular to eliminate the residual water, in particular the water resulting from the previous step of chemical disinfection of the endoscope.
Enfin, le procédé selon l'invention comprend une étape c) de séchage pendant une durée comprise entre 30 et 240 secondes, par injection de diazote gazeux à une température comprise entre 40°C et 65°C, le débit du diazote étant compris entre 20 et 100 1/min. Le séchage se fait donc par injection de diazote gazeux, dans les canaux de l'endoscope, par son extrémité proximale. Finally, the process according to the invention comprises a step c) of drying for a period of between 30 and 240 seconds, by injecting gaseous dinitrogen at a temperature of between 40 ° C. and 65 ° C., the flow rate of the dinitrogen being between 20 and 100 1 / min. Drying is therefore by injection of gaseous dinitrogen, in the channels of the endoscope, by its proximal end.
L'invention va maintenant être exemplifiée à l'aide des exemples qui suivent, qui ne sont pas limitatifs. The invention will now be exemplified with the aid of the examples which follow, which are not limiting.
Exemple : Example:
Un endoscope Olympus est placé dans un laveur désinfecteur d'endoscope pour subir un cycle de lavage et désinfection (étape a). A la fin du cycle de rinçage final dans le laveur désinfecteur d'endoscope, les canaux de l'endoscope sont remplis d'eau. An Olympus endoscope is placed in an endoscope washer-disinfector to undergo a wash and disinfect cycle (step a). At the end of the final rinse cycle in the endoscope washer-disinfector, the endoscope channels are filled with water.
La procédure suivante est ensuite suivie: The following procedure is followed:
1. Evacuation d'eau (drainage) (étape b)): 1. Water evacuation (drainage) (step b)):
- durée : 10-60 s,  - duration: 10-60 s,
- débit du gaz : 1 à 20 1/min,  - gas flow rate: 1 to 20 l / min,
- température du gaz : augmentation de 10°C à 60°C,  - gas temperature: increase from 10 ° C to 60 ° C,
2. Séchage (étape d)V 2. Drying (step d) V
- durée : 30 - 240 s,  - duration: 30 - 240 s,
- débit du gaz : 20 à 100 1/min,  - gas flow rate: 20 to 100 l / min,
- température du gaz : 40-65 °C.  - gas temperature: 40-65 ° C.
Les tests de séchage ont été réalisés sur un endoscope dégainé (canaux visibles) afin de valider l'absence d'humidité et de goulettes dans les canaux de l'endoscope. Par la suite, des tests microbiologiques ont été réalisés pour démontrer qu'après le séchage il n'y a pas d'augmentation de la charge initiale utilisée pour contaminer artificiellement l'endoscope. Une diminution entre 1 et 3 logarithmes a été mise en évidence, ce qui prouve que le séchage rapide est efficace. The drying tests were performed on a unsheathed endoscope (visible channels) to validate the absence of moisture and gullies in the channels of the endoscope. Subsequently, microbiological tests were performed to demonstrate that after drying there is no increase in the initial charge used to artificially contaminate the endoscope. A decrease between 1 and 3 logarithms has been demonstrated, which proves that fast drying is effective.
Les tests ont été réalisés en utilisant deux souches différentes : S. aureus et E. coli. Les résultats des tests sont présentés dans le Tableau suivant : The tests were performed using two different strains: S. aureus and E. coli. The results of the tests are presented in the following Table:
Figure imgf000007_0001
Figure imgf000007_0001

Claims

REVENDICATIONS
1. Procédé de séchage de canaux d'un endoscope, comprenant les étapes suivantes : a) lavage et désinfection de l'endoscope dans un laveur désinfecteur d'endoscope, b) injection de diazote gazeux dans les canaux d'endoscope par son extrémité proximale pendant une durée comprise entre 10 et 60 secondes, le débit du diazote étant del à 20 1/min, le diazote étant injecté à une température comprise entre 10°C et 60°C, notamment pour éliminer 1 ' eau résiduelle, 1. Method for drying channels of an endoscope, comprising the following steps: a) washing and disinfection of the endoscope in an endoscope washer-disinfector, b) injection of gaseous dinitrogen into the endoscope channels through its proximal end for a period of between 10 and 60 seconds, the flow rate of the dinitrogen being 20 1/min, the dinitrogen being injected at a temperature of between 10°C and 60°C, in particular to eliminate residual water,
c) séchage des canaux de l'endoscope pendant une durée comprise entre 30 et 240 secondes, par injection de diazote gazeux à un de 20 à 100 1/min, le diazote étant injecté à une température comprise entre 40°C et 65°C. c) drying the channels of the endoscope for a period of between 30 and 240 seconds, by injection of gaseous dinitrogen at a rate of 20 to 100 1/min, the dinitrogen being injected at a temperature of between 40°C and 65°C .
2. Procédé selon la revendication 1, caractérisé en ce que la désinfection de l'étape a) est réalisée avec au moins un composé choisi parmi l'acide peracétique, le glutaraldéhyde et le peroxyde d'hydrogène. 2. Method according to claim 1, characterized in that the disinfection of step a) is carried out with at least one compound chosen from peracetic acid, glutaraldehyde and hydrogen peroxide.
3. Procédé selon l'une des revendications 1 à 2, caractérisé en ce que la durée globale des étapes b) et c) est comprise entre 1 et 5 minutes. 3. Method according to one of claims 1 to 2, characterized in that the overall duration of steps b) and c) is between 1 and 5 minutes.
PCT/FR2017/051405 2016-06-02 2017-06-02 Method for drying a medical device WO2017207949A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1655032A FR3052073A1 (en) 2016-06-02 2016-06-02 DRYING METHOD OF MEDICAL DEVICE
FR1655032 2016-06-02

Publications (1)

Publication Number Publication Date
WO2017207949A1 true WO2017207949A1 (en) 2017-12-07

Family

ID=56842855

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2017/051405 WO2017207949A1 (en) 2016-06-02 2017-06-02 Method for drying a medical device

Country Status (2)

Country Link
FR (1) FR3052073A1 (en)
WO (1) WO2017207949A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009153481A1 (en) * 2008-05-23 2009-12-23 Endotech System and method for storing a medical endoscope
WO2016046503A1 (en) * 2014-09-25 2016-03-31 Plasmabiotics Method for drying a medical device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009153481A1 (en) * 2008-05-23 2009-12-23 Endotech System and method for storing a medical endoscope
WO2016046503A1 (en) * 2014-09-25 2016-03-31 Plasmabiotics Method for drying a medical device

Also Published As

Publication number Publication date
FR3052073A1 (en) 2017-12-08

Similar Documents

Publication Publication Date Title
CN108024690B (en) System and method for steam sterilization of endoscopes
JP4012062B2 (en) Methods for cleaning and sterilizing used medical devices
US9023277B2 (en) Apparatus and method for reprocessing lumened instruments
CA2962141C (en) Method for drying a medical device
US9089880B2 (en) Apparatus and method for reprocessing lumened instruments
JP6408157B2 (en) Cleaning composition
US7323149B2 (en) Supplemental ozone treatment for ensuring the sterility of instrument cleaning systems
US20070207054A1 (en) Sterilizing apparatus and method
Heeg Reprocessing endoscopes: national recommendations with a special emphasis on cleaning—the German perspective
WO2017207949A1 (en) Method for drying a medical device
Babb Disinfection and sterilization of endoscopes
Frăţilă et al. Cleaning and disinfection in gastrointestinal endoscopy: current status in Romania
Barbosa et al. Endoscope reprocessing using glutaraldehyde in endoscopy services of Goiânia, Brazil
EP1070505B1 (en) Aqueous solution of peracetic acid and hydrogen peroxide for the disinfection of endoscopes
Martiny et al. Residuals on medical devices following reprocessing
Axon Limpieza y desinfecci’on de los equipos endosc’opicos
US20060199751A1 (en) Supplemental ozone treatment methods for difficult cleaning and sterilizing applications
Nayar et al. Care and Sterilization
US20060233661A1 (en) Methods for disinfection and tracking of soiled items
Peláez et al. P08. 13 Comparative efficacy of high level disinfectants: in-hospital evaluation with manual or automatic endoscope reprocessors
Ogoshi et al. D. The Actual Practice of Endoscope Washing, Disinfection, and Sterilization.
McDonnell et al. P08. 14 Disinfectants efficacy against hardy viruses dried onto surfaces

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17742462

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17742462

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载