Classifications

• • 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
  • 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
  • A61B1/00112—Connection or coupling means
  • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
  • A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
• • 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—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
• • 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—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
  • A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
  • A61L2/18—Liquid substances
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
  • B08B3/04—Cleaning involving contact with liquid
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16J—PISTONS; CYLINDERS; SEALINGS
  • F16J15/00—Sealings
  • F16J15/16—Sealings between relatively-moving surfaces
  • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/62—Couplings of the quick-acting type pneumatically or hydraulically actuated
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B2017/00477—Coupling
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B2017/00535—Surgical instruments, devices or methods pneumatically or hydraulically operated
  • A61B2017/00544—Surgical instruments, devices or methods pneumatically or hydraulically operated pneumatically
• • 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
  • A61L2103/00—Materials or objects being the target of disinfection or sterilisation
  • A61L2103/15—Laboratory, medical or dentistry appliances, e.g. catheters or sharps

Definitions

• the invention relates to a connecting device for coupling a rinsing system to a channel of a surgical instrument to be cleaned, in particular an endoscope channel of an endoscope, wherein the connecting device comprises a supply-side coupling device with a receiving channel which is adapted to receive a connecting element, which in the connected state in a longitudinal axial direction of the receiving channel extends within the receiving channel and which is provided at the end of a connecting channel communicating with the channel to be cleaned of the surgical instrument, wherein the receiving channel for supplying rinsing liquid is connected to the channel to be cleaned with the flushing system, wherein the coupling device is a sealing element includes.
• the invention relates to a cleaning and / or disinfecting device for cleaning and / or disinfecting surgical see instruments, in particular endoscopes, with a channel to be cleaned, in particular for cleaning and / or disinfection of endoscopes with an endoscope channel to be cleaned, comprising a cleaning room, in which the s to be cleaned and / or disinfected surgical instruments, in particular endoscopes, during a Cleaning and / or disinfection process are receivable or recorded.
• the invention relates to a method for operating such a cleaning and / or disinfecting device.
• the reprocessing of endoscopes after use in a washer-disinfector for endoscopy places high demands on the clinical area.
• the treatment typically includes the steps of washing, disinfecting and drying the endoscopes.
• the disinfection is preceded by one or two washing or Vorwasch réelle. This is followed by rinsing with clear water and drying cycles.
• one or more chemicals are added to the washing or cleaning agent for disinfecting.
• a treatment device is known, for example, under the name ETD 3 of the manufacturer Olympus Medical Systems, where the abbreviation "ETD” stands for “Endo Thermo Disinfector”.
• ETD Endo Thermo Disinfector
• This reprocessing device is equipped with various reprocessing programs and allows the simultaneous preparation of multiple flexible or rigid endoscopes.
• ETD machines there is an automatic connection between the connecting elements and the rinsing cycle of the machine.
• the connecting elements which are connected to the endoscopes to be cleaned are passively coupled to the rear wall of the flushing chamber by inserting the cleaning basket, which accommodates the endoscopes to be cleaned.
• the coupling takes place via a laterally present in the washing compartment module, which actively connects a connecting element plate by means of a motor with the ETD.
• Active coupling methods are significantly more expensive and require a considerable amount of space in the treatment device.
• actively driven systems are often maintenance-intensive.
• a connecting device for coupling a rinsing system to a channel of a surgical instrument to be cleaned, in particular an endoscope channel of an endoscope
• the connecting device comprises a supply-side coupling device with a receiving channel, which is adapted to receive a connecting element, which in the connected state extends in a longitudinal axial direction of the receiving channel within the receiving channel and which is provided at the end of a connecting channel which communicates with the channel to be cleaned of the surgical instrument, wherein the receiving channel for supplying rinsing liquid to the channel to be cleaned with the rinsing system is connected
• the coupling device comprises a sealing element
• the connecting means is formed by the fact that the sealing element is elastic and means for hydraulic and / or pneumatic actuation of the Dichtelem ents are provided, wherein the hydraulically and / or pneumatically actuated sealing element by an expansion transverse to the L jossaxialraum a cross section of the receiving channel in the region of the sealing element decrease so that
• the invention is based on the finding that a liquid-tight connection between a coupling device and a connecting element using a hydraulically and / or pneumatically actuated sealing element works wear, requires virtually no additional effort required for coupling the connecting element to the coupling device and also structurally simple to implement is.
• the hydraulically and / or pneumatically operable seal ensures a reliable liquid-tight, hygienically perfect sealing situation between a connecting channel of the connecting element and the channel of the surgical instrument to be cleaned. The cleaning and / or disinfecting liquid does not come into contact with an external space, so that the channel to be cleaned can be reliably and hygienically rinsed.
• the connecting device is formed by the fact that an overpressure chamber and a compressed air supply are provided, wherein the compressed air supply is connected to the overpressure chamber and the sealing element forms at least one wall section of the overpressure chamber.
• the sealing element is expanded by applying compressed air to the overpressure chamber.
• the overpressure chamber is subjected to an overpressure.
• the term overpressure refers to an elevated pressure relative to the atmospheric pressure. This overpressure leads to the sealing element elastically deforming and expanding to such an extent that a reliable sealing situation exists between the coupling device and the connecting element. lies.
• the sealing element is provided in particular as a separate component.
• a tubular seal in particular made of a rubber-elastic material, for example made of rubber or silicone, is used, whose interior is the pressure chamber.
• a tubular seal or such a sealing tube is expanded by applying an overpressure in its interior, so that its cross-section increases.
• This embodiment of the connecting device is particularly inexpensive.
• the coupling device comprises the overpressure chamber, wherein the overpressure chamber extends along an outer circumference of the receiving channel and wherein the sealing element is a sealing membrane which limits the overpressure chamber to an inner wall of the overpressure chamber facing the receiving channel.
• the overpressure chamber is integrated in the coupling device, in other words is an integral part of the coupling device.
• the coupling device incl iessl I the pressure chamber quickly and inexpensively as a common component, for example in an injection molding process, produced.
• the sealing element is largely protected by its arrangement on the inner wall of the pressure chamber against accidental or accidental damage. This increases the reliability and durability of the connection device.
• the connecting device is formed by the fact that the Pressure chamber extends completely along the circumference of the receiving channel, wherein by pressurizing the pressure chamber with a liquid-tight coupling of the connecting element to the coupling device is provided or provided by a sealing seat between the expanded, the inner wall of the pressure chamber superior and so the cross section of the receiving channel locally reducing sealing element and an outer side of a extending within the receiving channel connecting piece of the connecting element can be produced or manufactured.
• an outer component of the coupling device comprises an overpressure chamber connected to a compressed air supply, wherein the inner wall of the overpressure chamber is annularly interrupted along the circumference of the receiving channel, so that the inner wall has an annular gap, wherein the annular gap with the elastic sealing membrane is closed as a sealing element.
• the sealing element If the sealing element is expanded during pneumatic actuation, it establishes, starting from the inner wall of the overpressure chamber, a sealing seat with the outside of the connecting piece of the connecting element.
• an elastic sealing membrane such as a membrane made of a rubber-elastic material such as rubber or silicone
• an elastic sealing membrane such as a membrane made of a rubber-elastic material such as rubber or silicone
• a cleaning and / or disinfecting device for cleaning and / or disinfecting surgical instruments, in particular endoscopes, with a channel to be cleaned, in particular for cleaning and / or disinfecting endoscopes with an endoscope channel to be cleaned, comprising one Cleaning space in which the surgical instruments to be cleaned and / or disinfected, in particular endoscopes, are receivable or received during a cleaning and / or disinfecting operation, wherein the cleaning and / or disinfecting device is further developed in that a connecting device according to one or more a plurality of said embodiments is provided, which is arranged in particular on a wall of the cleaning chamber or embedded in a wall of the cleaning room.
• the cleaning and / or disinfecting device comprises a rinsing system, which in addition to a rinsing liquid reservoir, for example, a cleaning and / or disinfecting agent for cleaning and / or disinfecting the channel to be cleaned, in particular endoscope channel, the surgical instrument, in particular endoscope includes, pumps , Sensors and valves.
• a rinsing system which in addition to a rinsing liquid reservoir, for example, a cleaning and / or disinfecting agent for cleaning and / or disinfecting the channel to be cleaned, in particular endoscope channel
• the surgical instrument, in particular endoscope includes, pumps , Sensors and valves.
• the object according to the invention is finally achieved by a method for operating a cleaning and / or disinfecting device according to one or more of the stated embodiments.
• the method comprises the following steps:
• the connecting element is manually connected to the surgical instrument to be cleaned, in particular the endoscope.
• the connecting piece (s) of the connecting element (s), which are subsequently connected to the coupling device tion are connected, in particular releasably or permanently attached to a cleaning basket for receiving the surgical instrument.
• a cleaning basket is inserted into a cleaning space of the cleaning and / or disinfecting device, wherein preferably in the course of this movement, the connecting piece of the connecting element along the longitudinal axial direction of the receiving channel is introduced into the receiving channel of the supply-side coupling device.
• this movement takes place without the need to overcome the resistance of a sealing situation. Likewise eliminates an additional handle for locking the connecting element.
• the coupling device is located on a rear wall of the treatment space. It is positioned to match the connecting elements and in particular so matched to the guides or stops of the cleaning basket, that when inserting the cleaning basket, a connecting piece of the connecting element is inserted into the receiving channel of the coupling device.
• a defined stop is provided in order to signal to the user that the cleaning basket is in the end position.
• the sealing element is actuated hydraulically and / or pneumatically, wherein this in particular elastically expands.
• compressed air is supplied to an overpressure chamber.
• the sealing element or the sealing membrane deforms to such an extent that a reliable sealing situation is established between an outer side of the connecting element, in particular an outer side of the connecting piece, and the sealing element.
• the channel of the surgical instrument to be cleaned in particular the endoscope channel, can now be treated with rinsing liquid. It is rinsed with rinsing fluid removed from the rinsing fluid reservoir.
• the rinsing liquid is, for example, water and / or a cleaning and / or disinfecting solution. In particular, the water and / or the cleaning and / or disinfecting solution is heated to or above a predeterminable temperature.
• the pressure in the overpressure chamber is measured at an access of the overpressure chamber connected to a compressed air supply over a first period of time, wherein subsequently the Zuzhoutikitate is changed stepwise and a step response of the prevailing pressure in the pressure chamber on the changing of the Zuzhoudruckiquess is measured and analyzed, the analysis information about a tightness of the pressure chamber, in particular a tightness of the sealing element, and / or information on the presence or absence of the connecting piece of the connecting element in the receiving channel.
• the analysis includes forming an integral of the measured pressure over a predeterminable time, determining a slope, and / or forming a second derivative of the pressure measured as a step response after time, wherein a comparison with a predetermined setpoint is performed and is closed when exceeding or falling below the predetermined setpoint to insufficient sealing of the pressure chamber, in particular of the sealing element, and / or presence or absence of the connecting piece of the connecting element in the receiving channel.
• the pressure is maintained during the duration of the cleaning program.
• a low leak rate is compensated.
• the feed pressure level is changed stepwise and a tightness of the overpressure chamber or elastic behavior of the sealing element is measured and analyzed by means of a step response to the changing of the feed pressure level.
• the analysis comprises a comparison of a static pressure with a first value predeterminable for the overpressure chamber.
• the analysis includes, in particular, the formation of an integral of the measured pressure over a second presettable time and a comparison with a second value predeterminable for the overpressure chamber.
• the analysis includes, in particular, determining a slope and / or forming a second derivative of the measured pressure over time.
• the analysis comprises in particular the analysis of a duration, amplitude and / or wavelength of an oscillation of the pressure measured as step response.
• the pressure drop exceeds a certain limit value, this is interpreted as an indication of a defective sealing element, in which case a corresponding error or warning signal is output in particular.
• the formed slope and / or second derivative of the measured pressure over time as well as the duration, amplitude and / or wavelength of an oscillation of the pressure measured as step response limit values are determined their exceeding or falling below indicate too high a leak rate.
• the functionality of the sealing element is reliably verifiable.
• the presence or absence of the connecting piece of the connecting element in the receiving channel is detected on the basis of the mechanical or elastic reaction of the sealing element to the changed internal pressure in the overpressure chamber.
• the sealing element shows a different elastic behavior, depending on whether the connection piece is present in the receiving channel or not.
• the connecting piece exerts a corresponding counterforce on the sealing element and also limits the volume available for elastic deformation or expansion.
• a slope and / or forming a second derivative of the measured pressure over time it can be determined whether the connection piece is located in the receiving channel.
• an analysis of a duration, an amplitude and / or a wavelength of an oscillation of the pressure measured as step response is suitable.
• the compressed air channel is vented, whereby the connecting element is released from the coupling device. Again, the user is able to remove the basket with the included cleaned surgical instruments without the need for any effort to overcome a tight situation.
• FIG. 1 to 4 schematically a connecting device in a
• Fig. 5 a schematic cleaning and disinfecting device.
• the Fig. 1 to 4 show schematically a connection device 2 in a longitudinal sectional view in different operating states.
• the connecting device 2 comprises a coupling device 6 and a connecting element 10, which can be connected to the coupling device 6.
• the coupling device 6 is provided on the supply side and serves to provide a rinsing liquid 5, for example water or a cleaning and / or disinfecting liquid, for cleaning and / or disinfecting a channel of a surgical instrument to be cleaned, in particular an endoscope channel of an endoscope.
• the coupling device 6, more precisely the mounting Receiving channel 14 of the coupling device 6, connected via a supply port 13 with a flushing system 50.
• the connecting channel 4 of the connecting element 1 0 is connected to the channel to be cleaned of the surgical instrument.
• Fig. 5 shows a cleaning and / or disinfecting device 30, in which the coupling device 6 is integrated. It is located, for example, on a rear wall 38 of a cleaning chamber 36.
• the cleaning and / or disinfecting device 30 is used for cleaning and / or disinfecting surgical instruments with a channel to be cleaned.
• a cleaning and / or disinfecting device 30 for cleaning and / or disinfecting endoscopes 32 with an endoscope channel 34 to be cleaned is shown.
• the supply opening 1 3 (see Figures 1 to 4) is connected to the Spülflüs- stechniksvorrat 7 via a supply line 42 (see Fig .. 5), so that the rinsing liquid 5 of the coupling device 6 can be supplied via the supply opening 13.
• the flushing system 50 comprises, in addition to the rinsing liquid supply 7 not shown pumps, sensors and valves.
• the connecting element 10 is connected to the endoscope 32 to be cleaned.
• the connection channel 4 present in the connecting element 10 therefore communicates with an endoscope channel 34 to be cleaned.
• the channel with rinsing liquid 5, for example a cleaning and / or disinfecting liquid is removed from the rinsing liquid reservoir 7 rinsed.
• the connecting element 10 is preferably connected manually to the endoscope 32 to be cleaned.
• the connecting piece 16 of the connecting element used is in particular detachably or permanently attached to a cleaning basket 40 for receiving the endoscope 32.
• connection piece 1 If the user pushes the cleaning basket 40 including the endoscopes 32 to be cleaned into a cleaning space 36 of the cleaning and / or disinfecting device 30, the insertion of the connecting pieces 16 into the receiving channel 14 of the coupling device 6 takes place in one Connecting direction 44.
• the connecting direction is at least approximately parallel to a longitudinal axial direction A of the receiving channel 14.
• the receiving channel 14 is in cross-section in particular circular; The same applies to the connection piece 1 6.
• the coupling device 6 is located on the rear wall 38 of the treatment chamber 36. It is suitable for the position of the connecting element 1 0 positioned on the cleaning basket 40. In particular, therefore, the positions of the connecting element 1 0 on the cleaning basket 40 and the position of the coupling device 6 on the rear wall 38 of the treatment chamber 36 so matched by the guides and stops of the cleaning basket 40 that upon insertion of the cleaning basket 40, the connecting piece 1 6 in the associated receiving channel 14 are inserted.
• this movement takes place without having to overcome a resistance of a sealing situation.
• a diameter of the connecting piece 1 6 and a diameter of the receiving channel 14 are matched to each other taking into account sufficient tolerances and clearances.
• FIGS. 1 to 3 The process of inserting the connecting piece 1 6 in the Receiving channel 14 is shown in FIGS. 1 to 3 during different successive phases.
• a defined stop is provided in order to signal to the user that the cleaning basket 40 is in the end position.
• the end position is achieved, for example, when the collar of the connecting element 10 abuts against the flat side of the receptacle 6 facing it.
• a liquid-tight connection between the connecting element 10 and the coupling device 6 is achieved by hydraulically and / or pneumatically actuating the elastic sealing element.
• a sealing element according to the illustrated embodiment, a sealing membrane 8 is provided.
• an outer component 22 of the coupling device 6 comprises an overpressure chamber 24, which can be acted upon by means of the compressed air supply 12 with an overpressure.
• the coupling device 6 is connected to a compressed air line 46 to the compressed air supply 1 2.
• the intended sealing membrane 8 is elastically deformable. Closes after reaching the end position of the user subsequently the cleaning and / or disinfecting device 30 and selects a corresponding cleaning and / or disinfection program, the pressure chamber 24 is supplied by activation of the compressed air supply 1 2 compressed air P.
• the membrane 8 is actuated hydraulically and / or pneumatically, wherein by an expansion of the membrane 8 in a direction transverse to the longitudinal axial direction A, a cross section of the receiving channel 1 4 in the region of the membrane 8 is reduced so far that a liquid-tight connection of the connecting element 1 0th can be provided or provided with the coupling device 6.
• the sealing element d .h. the membrane 8 is located on or in an inner wall 1 8 of the pressure chamber 24. It is in pneumatic operation, ie. if an overpressure is produced in the overpressure chamber 24, expandable, so that a sealing seat between the membrane 8 and an outer side 20 of the connection piece 16 of the connecting element 10 can be produced.
• the outer component 22 of the coupling device 6 comprises an annular gap 28 extending completely along the circumference of the receiving channel 14. This gap is formed by an annular interruption of the inner wall 18 extending between the receiving channel 14 and the overpressure chamber 24. The annular gap 28 is closed with the elastic sealing membrane 8 as a sealing element. If the overpressure chamber 24 is subjected to an overpressure, the sealing membrane 8 bulges through the annular gap 28, so that a reliable sealing seat is produced. This situation is shown in FIG. 4 schematically illustrated.
• annular or tubular seal is provided, which is also located on the inner wall 1 8 and extends completely along the inner periphery of the receiving channel 14.
• An overpressure chamber 24 in the interior of the outer component 22 can be omitted in this embodiment.
• the interior of the tubular seal assumes the technical function the pressure chamber 24.
• the inner wall 1 8 is provided according to this embodiment, in particular with means for receiving and holding a tubular seal, for example, it has circumferential groove. When pressurized, such a tubular seal lies flat against the inside of the inner wall 1 8. If it is pressurized, it expands in particular with increase in its circumference, so that a sealing seat between the seal and an outer side 20 of the connecting piece 1 6 of the connecting element 1 0 can be produced.
• the Zugardruckmen the compressed air P is changed by connecting or disconnecting the compressed air supply 1 2 or maintained for the duration of the cleaning and / or disinfecting.
• the pressure in the overpressure chamber 24 is measured time-dependent, it is a corresponding, not shown, sensor provided. By comparison with a predetermined set point, the desired pressure within the overpressure chamber 24 is maintained.
• the cleaning and / or disinfecting device 30 is in particular adapted to supply compressed air P of the overpressure chamber 24 with a Zu211druckordinate, the Zu2020druckmen the compressed air P by connecting or disconnecting the compressed air supply 12th is changed.
• the pressure at an input of the overpressure chamber 24 or in a supply line of the overpressure chamber 24 is measured over a first predeterminable time.
• the feed pressure level is subsequently changed stepwise.
• a tightness of the overpressure chamber 24 is detected from a measured step response to changing the feed pressure level by analyzing the step response.
• This analysis comprises, in particular, a comparison of a static pressure with a first value predeterminable for the overpressure chamber 24.
• this analysis comprises in particular the formation of an integral of the measured pressure over a second presettable time and a comparison with a second value predeterminable for the overpressure chamber 24.
• the analysis includes, in particular, determining a slope and / or forming a second derivative of the measured pressure over time.
• the analysis comprises, in particular, the analysis of a duration, amplitude and / or wavelength of an oscillation of the pressure measured as step response.
• the cleaning and / or disinfecting device 30 are in particular configured to output a corresponding error or warning signal, which prompts for maintenance or replacement of the sealing element.
• the sealing membrane 8 exhibits a different elastic pressure. nice behavior, depending on whether the connection piece 16 is present in the receiving channel 14 or not.
• the connecting piece 1 6 exerts a counterforce on the sealing membrane 8 and also limits the volume available for elastic deformation or expansion.
• a slope and / or forming a second derivative of the time-dependent measured pressure it can be determined whether the connection piece 1 6 is in the receiving channel 14 or not.
• an analysis of a duration, an amplitude and / or a wavelength of oscillation of the pressure measured as a step response to a change in the internal pressure is available.

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

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• 2014
  • 2014-03-31 DE DE102014206020.6A patent/DE102014206020A1/de not_active Withdrawn
• 2015
  • 2015-03-18 WO PCT/EP2015/055692 patent/WO2015150080A1/de not_active Ceased
  • 2015-03-18 EP EP15712834.9A patent/EP3125741B1/de not_active Not-in-force
  • 2015-03-18 CN CN201580006252.8A patent/CN105939649A/zh active Pending
  • 2015-03-18 JP JP2016560519A patent/JP2017509436A/ja not_active Withdrawn
• 2016
  • 2016-09-23 US US15/274,807 patent/US10085817B2/en not_active Expired - Fee Related

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