EP2942575B1 - Dispositif de passage de distributeur d'air - Google Patents

Dispositif de passage de distributeur d'air Download PDF

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Publication number
EP2942575B1
EP2942575B1 EP15162504.3A EP15162504A EP2942575B1 EP 2942575 B1 EP2942575 B1 EP 2942575B1 EP 15162504 A EP15162504 A EP 15162504A EP 2942575 B1 EP2942575 B1 EP 2942575B1
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EP
European Patent Office
Prior art keywords
laminarisator
downstream
turbulence
housing
media panel
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.)
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Application number
EP15162504.3A
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German (de)
English (en)
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EP2942575A1 (fr
Inventor
Steffen Bepler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innovations-Transfer Uphoff & Co KG GmbH
INNOVATIONS TRANSFER UPHOFF GmbH and Co KG
Original Assignee
Innovations-Transfer Uphoff & Co KG GmbH
INNOVATIONS TRANSFER UPHOFF GmbH and Co KG
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Publication of EP2942575A1 publication Critical patent/EP2942575A1/fr
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Publication of EP2942575B1 publication Critical patent/EP2942575B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/108—Means providing sterile air at a surgical operation table or area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/163—Clean air work stations, i.e. selected areas within a space which filtered air is passed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F24F2013/088—Air-flow straightener
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling

Definitions

  • the invention relates to a laminarizer passage device according to the preamble of claim 1.
  • Such a device is from the DE 100 58 721 C2 known.
  • an operation lamp is shown on a Deckenarmsystem having a light source in a lamp housing and a gas conveyor with a running through the Deckenarmsystem flow channel, which opens into the lamp housing, wherein an air outlet is arranged on the underside of the lamp housing.
  • the WO 2012/013749 A2 describes an operating light, which is completed by a hemispherical transparent cover in the light exit direction and in a room ceiling has an air flow generating device which flows around the lamp and should produce a laminar as possible flow.
  • the WO 2013/064490 A1 shows a surgical lamp with a lamp housing, which is surrounded by air and in the flow direction behind the lamp housing on the outside has a plurality of trough-like depressions.
  • the US 5443625 A shows an air filter device for a room which is mounted in the ceiling of the room, having one or more fans and a filter network.
  • a filter housing is designed so that room air is sucked in and transported away through the filter to the outside.
  • laminarizers are used, for example, from the EP 2522924 A2 or the DE 10 2008 019698 B3 are known.
  • the lighting is usually realized by ceiling lamps, which are arranged laterally next to the laminarizers and by surgical lights, which are suspended by a gimbal and can be positioned and swiveled according to the lighting requirement.
  • Work equipment such as suction devices, flushing devices, RF power supply, etc. are now usually supplied to the side of the work area, which disturbs the work area, makes it confusing and also disturbs the desired low-turbulence air flow. In some cases, these tools are also supplied with a Kardanik.
  • Lighting alone through ceiling lamps is in practice insufficient in terms of light intensity in the work area.
  • Operating theater lights with gimbals have the disadvantage that the laminar air flow is disturbed and turbulences occur. These turbulences can cause or promote the transport of particles as well as microorganisms from the operator (face, clothing, etc.) into the protected area as well as from the working area into the respiratory area of the surgeon.
  • LAF laminar
  • TAV low-turbulence displacement flow
  • the degree of turbulence is defined as a measure of the fluctuations in relation to the mean value of the air velocity in accordance with DIN EN 13182 or VDI 2083. It is approximately equal to the relative standard deviation (standard deviation by mean) when the number of samples is large and the direction of the speed-time fluctuations is ignored.
  • VDI 2083 Part 5, Table 1 There are three parameters for the degree of turbulence (VDI 2083 Part 5, Table 1): flow with a degree of turbulence of ⁇ 5 % à laminar LAF 5 - 20 % à turbulence arm TAV .
  • LAF and TAV systems are used wherever aerogenically transmitted particulate or gaseous contamination of products and work surfaces, such as in industrial operating rooms, must be kept away from the product (product protection) or the working personnel (personnel protection).
  • Laminarizers are known in the art, have been optimized in many variants in recent decades (EP 0355 517 B1 ) and achieve a reduction in the degree of turbulence, so that exchanged from the overflowed surfaces less energy with the flowing air or fewer particles are removed or dumped.
  • the air is discharged via exhaust openings in the floor, on walls or ceiling-fixed suction systems.
  • Typical applications for this technology are, for example, microelectronics for the production of computer chips, the optical industry, production and filling areas in the pharmaceutical industry, food technology and the operating rooms in medicine.
  • the room class 1a usually has the installation of several (HEPA) supply air filters under the operating room ceiling. Using these filters and the subsequent laminarizer, the supply air, which is colder than the air in the room, is guided to the protection and working area vertically below the operating area and instrument tables.
  • the supply air ceiling outlet is located in the middle area of the operating room and occupies an area of 3.2 x 3.2 square meters. This allows a ventilation-related defined protection area of 3 x 3 square meters to be displayed in the operating room.
  • laminarisers also tissue distributors, CG distributors [CibaGeygi: first-time application]
  • These laminarizers produce a flow with low degrees of turbulence and thus a desired, rectified, low-turbulence or laminar air flow.
  • laminar flows degree of turbulence: ⁇ 5%
  • Flow obstacles located downstream below the level of the laminariser usually increase the degree of turbulence or have a negative effect on the quality of the air flow in the working area to be protected.
  • Flow obstacles located downstream below the level of the laminariser usually increase the degree of turbulence or have a negative effect on the quality of the air flow in the working area to be protected.
  • surgical lights whose tripod tubes must be routed through the plane of the laminarizers, it is known that both the tripod bushing and the lamp increase the degree of turbulence locally.
  • Further examples of such flow disturbances in the operating room in the area between laminarizer and protective area are ceiling supply units (medical Gases, electricity) and screens for process monitoring.
  • clean rooms are characterized by special lighting systems in addition to these air duct systems as well as task-specific (processing) equipment.
  • So z. B. installed in clean rooms for medical operations and invasive procedures on humans and animals specially combined lighting systems.
  • DIN EN 12464-1 a distinction is made between the "visual task area” with the highest requirements for the luminance of the immediate “surrounding area” (about 0.5 m around the visual field of the visual task) and the “background” (about 3 m around the visual task).
  • the "ambient area” with luminance of 1.5-2 kLx and the "background area” with 1.0 kLx must be supplied.
  • the illumination of the "surrounding area” by means of one or more juxtaposed rows of Neo-room lights (2-3 rows), which are installed circumferentially around the Zu Kunststoff-Deckenauslass on the operating room ceiling.
  • these enable the surgical team to have a sufficient overview of the instruments and devices used (eg for instrumentation and anesthesia).
  • the illumination in the "ambient” and “background” areas prevents the surgical team from being subjected to adaptation disorders due to excessively high luminance differences from the visual task area. This ensures physiologically acceptable contrasts and fulfills the protection requirement according to the valid accident prevention regulations (GUV-I-8681).
  • multi-row neon lights are mounted on the side of the ventilation ceiling outlet on the operating room ceiling.
  • the disadvantage of this lateral arrangement is that these lights in the direction of OP floor are directed and the protection area, which is to be illuminated with a luminance of 1-2 kLx, due to the diagonal is a large distance.
  • Object of the present invention is therefore to provide a device with the tools can be introduced in turbulence-poor flow in a workspace.
  • the basic idea of the invention is to integrate a media panel into the laminarizer so as to provide a low-turbulence flow after a short downstream distance to the media panel.
  • the media panel is used as a passage element in an opening of the laminarizer, such that it passes through the laminarizer, wherein its downstream end is rounded so that there forms a low-turbulence flow.
  • the rounding is preferably hemispherical or in the form of a paraboloid of revolution.
  • the media panel preferably has connections for electric current and / or suction devices and / or fluid supply devices.
  • a connection for a glass fiber light cable is additionally provided on the media panel, wherein a light source or a fiber optic light cable to be supplied is arranged in the interior of the media panel.
  • a light source for the optical fiber light cable LED's are preferably proposed.
  • the media panel is height adjustable and in particular by a telescopic guide.
  • the invention is therefore based primarily on the recognition that a passage element (LPE for laminarizer passage element) introduced into the laminarizer "initially generates locally below a hemispherical turbulent flow, however, due to appropriate selection of shape and diameter of the passage element (LPE)
  • LPE passage element
  • the turbulence-poor air flowing sideways is returned to a turbulence-free flow form after the maximum diameter of the LPE, thus restoring the work plane in the protected area to turbulence-poor flow.
  • a media panel which is passed through the laminarizer in the form of a passage element and at the lower end has a strömungsbehenstigende round shape, which is preferably hemispherical or formed as a paraboloid of revolution.
  • fiber optic cable connections adapters
  • the required for the field of visual task very high luminance, z. B. via fiber optic cable in gooseneck technology, lead directly to the work area.
  • Fig. 1 shows a clean room 1 with a bottom 2, a ceiling 3 and side walls 4.
  • an air supply device 5 is attached, which has a fan 6, an air filter 7 and a laminarizer 8.
  • the laminarizer 8 has a plurality of openings in which lighting devices 10 are inserted.
  • the lighting devices 10 have a closed housing 9, are arranged in the light source and on the facing towards the interior of the clean room 1 side a translucent disc 11 which may be flat, but also curved convex or concave to focus the light or to scatter.
  • the housings 9 partly protrude beyond the underside of the laminarizer 8 into the clean room and have a sharp tear-off edge 12.
  • the housings 9 thus have the shape of a tube which is closed at the end.
  • the tubular opening of the housing 9 preferably protrudes at least 1 mm, preferably 2 mm, out of the plane of the laminarizer 8.
  • the cross-sectional shape of the housing is largely arbitrary and can, for example, square, be circular, elliptical or n-sided with n> 3.
  • the air flows conveyed by the fan 6 pass through the laminarizer 8 and flow around the housings 9.
  • Turbulence normally forms in the flow direction below the housings 9. Due to a tear-off edge 12 on the housings 9, the region of turbulence has an approximately hemispherical shape with a length which corresponds approximately to the width 14 of the housing 9 and is not greater than about 1.2 times the largest diameter of the housing. After this range, the flow is again, according to the requirements of the respective clean room quality, laminar or low turbulence.
  • the light sources 10 whose illuminants are preferably glass fibers or LEDs.
  • Fig. 1 Another advantage of the invention is in Fig. 1 shown.
  • the level of laminarizer 8 can be up from the current 2.7-3 m Be lowered ⁇ 2.5 m.
  • the luminance is substantially increased there, since the luminance is known to decrease with the square of the distance between the light source and the irradiated object.
  • housings 9 may be replaced by one or more media panels 17.
  • the media panels 17 are passed through the laminarizer 8 as a passage element and have at its directed to the working plane 15 downstream end 18 a flow favorable round and in particular hemispherical or rotationsparaboloidische shape, so that forms a low-turbulence flow in the further flow.
  • the media panels may have various ports 19, 20, such as.
  • a connection 19 for a light-conducting cable 21 can be provided on the media panel 17 with which the special lighting required for the visual task can be brought into any proximity to the working plane 15, for example via a so-called "gooseneck".
  • a very bright illumination can be brought directly to the point to be illuminated (visual task).
  • Fig. 3 shows a plan view of the laminarizer 8 with several housings inserted 9 and illustrates that the housing 9 can have very different shapes, such. B. square, circular, elliptical, hexagonal, etc.
  • the diameter of the housing was 12 cm.
  • the distance b between two adjacent housings 9 was 5 cm and the distance c of the housing 9 to the edge of the laminarizer 8 was 10 cm. With these dimensions was below the housing 9 after a distance which is at most 1.2 times the diameter a of the housing 9, a visualization of the flow is documented and a degree of turbulence of ⁇ 5% is always measured in the working plane.
  • Fig. 2 It can also be seen that additional luminaires 22, which provide sufficient background illumination of the clean room 1, can be arranged on the ceiling 3 laterally next to the work surface 15.
  • additional luminaires 22 which provide sufficient background illumination of the clean room 1
  • conventional neon lamps can be used.
  • the height of the laminarizer 8 above the bottom 2 was 2.7 m.
  • the height of the (height-adjustable operating table) working level 15 is usually between 80 cm and 1.40 m.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ventilation (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (5)

  1. Dispositif de passage à mise en forme laminaire avec un moyen générateur de flux d'air, avec un dispositif de mise en forme laminaire (8) et avec au moins un panneau de support (17),
    dans lequel le panneau de support (17) est agencé en forme d'élément de passage dans une ouverture du dispositif de mise en forme laminaire (8), de sorte qu'il traverse le dispositif de mise en forme laminaire (8),
    caractérisé
    en ce que le panneau de support (17) comporte à son extrémité aval (18) dans le sens d'écoulement du flux une forme arrondie telle que se produit en aval de son extrémité (18) un écoulement peu turbulent,
    en ce que sur le panneau de support (17) est prévu en aval du dispositif de mise en forme laminaire (8) un raccord (19) pour un guide de lumière à fibre de verre (21), une source de lumière (10) ou un guide de lumière à fibre de verre pour alimentation étant disposé à l'intérieur du panneau de support (17), et
    en ce que le panneau de support (17) comporte en aval du dispositif de mise en forme laminaire (8) un raccord supplémentaire (20) pour le courant électrique et/ou des moyens d'aspiration et/ou des moyens d'alimentation en fluide.
  2. Dispositif de passage à mise en forme laminaire selon la revendication 1, caractérisé
    en ce que la forme arrondie à l'extrémité aval (18) dans le sens d'écoulement du flux est hémisphérique ou en forme de paraboloïde de révolution.
  3. Dispositif de passage à mise en forme laminaire selon l'une des revendications 1 ou 2, caractérisé
    en ce que la source de lumière (10) comprend au moins un guide de lumière à fibre de verre ou une LED.
  4. Dispositif de passage à mise en forme laminaire selon l'une des revendications 1 à 3, caractérisé
    en ce qu'il comprend en outre au moins une source de lumière (10) sous la forme d'un élément de conduction traversant conformé en boîtier (9), le boîtier (9) comportant un bord de séparation de flux aval (12) résultant du fait que le boîtier (9) additionnel est un tube à paroi mince dont le bord de séparation de flux aval (12) dépasse d'au moins 1 mm au-delà de la surface du dispositif de mise en forme laminaire (8) et dont l'épaisseur est ≤ 3 mm et de préférence ≤ 1,5 mm.
  5. Dispositif de passage à mise en forme laminaire selon la revendication 4, caractérisé
    en ce que le boîtier (9) présente en vue de dessus une forme carrée, elliptique ou à n côtés avec n > 3.
EP15162504.3A 2014-04-07 2015-04-02 Dispositif de passage de distributeur d'air Active EP2942575B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201410004922 DE102014004922B3 (de) 2014-04-07 2014-04-07 Laminarisatorpassagevorrichtung

Publications (2)

Publication Number Publication Date
EP2942575A1 EP2942575A1 (fr) 2015-11-11
EP2942575B1 true EP2942575B1 (fr) 2016-10-26

Family

ID=52478810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15162504.3A Active EP2942575B1 (fr) 2014-04-07 2015-04-02 Dispositif de passage de distributeur d'air

Country Status (2)

Country Link
EP (1) EP2942575B1 (fr)
DE (1) DE102014004922B3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018087162A1 (fr) * 2016-11-08 2018-05-17 Optimus Licensing Ag Éclairage de salle d'opération et systèmes de réchauffement des patients - conception et composants

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2229683A1 (de) * 1972-06-19 1974-02-07 Original Hanau Quarzlampen Operationsfeldleuchte
DE3827918A1 (de) * 1988-08-17 1990-02-22 Nickel Gmbh Heinrich Laminarisator
US5443625A (en) * 1994-01-18 1995-08-22 Schaffhausen; John M. Air filtering fixture
DE10058721C2 (de) * 2000-11-25 2002-11-28 Draeger Medical Ag Operationsleuchte an einem Deckenarmsystem
SE532219C2 (sv) * 2006-02-28 2009-11-17 Airsonett Ab Förfarande och anordning för att åstadkomma en renluftzon vid ett operationsområde inom sjukvården och användning av nämnda anordning
DE102008019698B3 (de) * 2008-04-18 2009-12-17 Innovations-Transfer Uphoff Gmbh &.Co.Kg Sterilkabine
EP2413018B8 (fr) * 2010-07-28 2014-02-26 Corporació Sanitària Parc Taulí Lampe
DE102010054823A1 (de) * 2010-12-16 2012-06-21 TÜV Rheinland Industrie Service GmbH Verbesserte Luftführung bei einer TAV-Decke mit OP-Leuchte
DE102011076317A1 (de) * 2011-03-30 2012-10-04 Karl Storz Gmbh & Co. Kg Tragvorrichtung für einen Operationssaal
DE202011110896U1 (de) * 2011-05-11 2017-02-13 Detlef Makulla Zuluftdecke
DE102011085728A1 (de) * 2011-11-03 2013-05-08 Trilux Medical Gmbh & Co. Kg Leuchte, insbesondere Operationsleuchte

Also Published As

Publication number Publication date
EP2942575A1 (fr) 2015-11-11
DE102014004922B3 (de) 2015-03-12

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