EP2258991B1 - Dispositif d'aération - Google Patents

Dispositif d'aération Download PDF

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Publication number
EP2258991B1
EP2258991B1 EP10163197.6A EP10163197A EP2258991B1 EP 2258991 B1 EP2258991 B1 EP 2258991B1 EP 10163197 A EP10163197 A EP 10163197A EP 2258991 B1 EP2258991 B1 EP 2258991B1
Authority
EP
European Patent Office
Prior art keywords
air
air supply
operating room
operating
chamber
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.)
Active
Application number
EP10163197.6A
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German (de)
English (en)
Other versions
EP2258991A3 (fr
EP2258991A2 (fr
Inventor
Rüdiger DETZER
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.)
Rud Otto Meyer Technik GmbH and Co KG
Original Assignee
Rud Otto Meyer Technik GmbH and Co KG
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 Rud Otto Meyer Technik GmbH and Co KG filed Critical Rud Otto Meyer Technik GmbH and Co KG
Publication of EP2258991A2 publication Critical patent/EP2258991A2/fr
Publication of EP2258991A3 publication Critical patent/EP2258991A3/fr
Application granted granted Critical
Publication of EP2258991B1 publication Critical patent/EP2258991B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • 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
    • 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
    • F24F7/00—Ventilation
    • F24F2007/004—Natural ventilation using convection

Definitions

  • the invention relates to an operating room with a device for ventilating a room according to the preamble of claim 1.
  • a device for ventilation shielding in the field of a care bed for a patient is known.
  • the device is intended to reduce the risk of infection and, on the other hand, to be able to treat the patient from all sides.
  • the DE 23 09 390 A1 discloses an operating room with germ-free ventilation of the operating area.
  • the document shows an operating room with a device for ventilating the operating room with an operating table, with a ceiling wall, side walls and a bottom, the device having an air supply device and an air suction device and wherein the air supply device and the air exhaust device in the operation of the device for forming a horizontal air flow path interact.
  • the apparatus described in that document comprises a ventilation fan, which conveys an air flow from inlet openings on the ceiling of a room into the room, and at least two suction pumps, which are attached to side walls of the room to suck used air out of the room.
  • a ventilation fan which conveys an air flow from inlet openings on the ceiling of a room into the room
  • suction pumps which are attached to side walls of the room to suck used air out of the room.
  • an air flow is generated from the ceiling of the room down.
  • the problem may arise that there is a return flow in the area of heat sources located in the room, for example surgical lamps, or in the area of an operating table which distributes contaminated air over the floor and movement area of persons in the room.
  • the invention has for its object to provide an operating room with a device for ventilation, which allows an improved air flow guide to the above-mentioned difficulties reduce. This object is achieved by the feature combination specified in claim 1.
  • the device according to the invention is used, in particular, for ventilating a chamber provided as a clean room, namely an operating room. If in the context of the invention of a "near-ground area" of the chamber is mentioned, it is to be understood as an area immediately adjacent to the ground or in the height direction Z is at most about 60 cm above the ground.
  • the air supply device is mounted in a near-bottom region of the chamber and comprises an inlet opening in one of the side walls or the bottom of the chamber, it is ensured that the entry of air in the lowermost region of the chamber and thus a main flow path of the supplied air from bottom to top and thus in the height direction Z and / or in a plane XY perpendicular to the height direction he follows.
  • the air extraction device is mounted above the air supply device. This supports the air flow in the aforementioned sense. Unlike what is conventional in the art, the air according to the invention is not guided from top to bottom. This fact is advantageous in that the air flow is not deflected against its original flow direction when hitting a heat source. In other words, the existing example in an operating room heat sources such as strong radiating surgical lamps affect the air flow not adversely. A return of used and possibly contaminated air therefore takes place not or only to a lesser extent, as is customary in the described prior art.
  • the air supply device is aligned against a workstation located in the chamber.
  • This workstation is an operating table.
  • This workstation is an operating table.
  • strong radiating surgical lights which are a source of heat.
  • These heat sources create a thermal which causes the airflow path to travel upwards, i. in the height direction Z runs.
  • this guidance of the air upwards is not a reversal of the main flow path, since according to the invention it does not run from top to bottom.
  • the heat source which is inevitable in an operating room, thus does not affect the desired air flow path, but even acts at least partially supportive.
  • a room or chamber has several corners at which the side walls abut each other, usually at an angle of about 90 °. It has been found that these corners are favorable locations for the positioning or attachment of the air supply device. According to one embodiment of the
  • the air supply device is positioned in the region of the corners of the side walls.
  • the expression "in the region of the corners” to be understood that the air supply means of both side walls which abut each other at the respective corner, each spaced at most about 50 cm. This arrangement has the advantage that the air flow originating from the air supply device can spread well within the chamber.
  • each air supply means being positioned in one of the corners of the side walls.
  • an air supply device can be positioned or attached in each of the corners of the chamber. This ensures that the entire base of the chamber is supplied with air supplied, and thus therefore with fresh air.
  • This embodiment is particularly advantageous when the chamber is an operating room with a square or rectangular floor plan.
  • an air supply means is attached to the bottom of the chamber or to one of the side walls adjacent the floor, and the air exhaust means is mounted at a small distance from the floor at one of the side walls of the chamber.
  • This height difference can be less than 80 cm or even less than 60 cm.
  • the air supply device and the air suction device can be positioned or mounted at the same height.
  • air supply means is attached to one of the side walls adjacent to the floor, and the air exhaust means is mounted at the same height on an opposite one of the side walls of the chamber.
  • a relatively straightforward air flow path is formed in the X-Y direction (ie in the direction of the base of the chamber), in which eventual contaminations of the soil can be reliably removed.
  • the air supplied in the floor area does not reach the upper areas of the chamber and thus not where surgical interventions take place in an operating room, for example, and where stringent hygiene requirements are imposed. Nevertheless, a fresh air supply or a discharge of used or contaminated air may be necessary or desired in this upper area.
  • a further air supply device which is mounted above the air suction device, and there is a further air suction device which is mounted above the further air supply device.
  • this embodiment comprises two groups of air supply and exhaust devices, namely a first group, which serves to produce the already mentioned bottom stratification, and a second or further group, which provides for the supply of fresh air into the overlying chamber area.
  • exit velocity of the air is to be understood as meaning the flow velocity of the air in the region of the air inlet device, that is to say the speed at which the air flow flows into the chamber.
  • the air supply means comprises an inlet opening through which air, i. Fresh air, can enter the interior of the chamber.
  • this inlet opening forms the air supply device.
  • the air flow is caused in this case by the force of the ventilation fan.
  • the air suction device may also comprise means for actively conveying the air, for example fans or blowers. Whenever “blower” is mentioned below, this term in the context of the invention should be understood to include fans and other means for actively conveying an airflow.
  • the air supply device has two fans, wherein the two fans and / or the two air inflow openings are positioned on both sides of a workstation located in the chamber.
  • the two fans Preferably, the two fans have the same distance from the said workplace, which may in particular be an operating table.
  • This arrangement has the advantage that a good supply of fresh air takes place in the area of the workplace, ie where there are stricter hygiene requirements and more people are staying for a longer period, and used air is safely removed. Due to the symmetrical arrangement of the two fans or openings ensures that largely uniform climatic conditions prevail in the work area.
  • the blowers mentioned above may for example be dimensioned such that a temperature gradient in the height direction Z of less than or equal to 0.5 K / m is formed at the workstation. This has the advantage that the people staying at the workplace find a largely equal ambient temperature in the area their body occupies.
  • blowers can be further enhanced if the air supply means are positioned in the form of a rectangle, in particular a square, around the work station. This arrangement increases the symmetry of the flow conditions in the workplace.
  • the air suction device or a part thereof is positioned above a workstation located in the chamber.
  • This embodiment allows a targeted extraction of used or contaminated air where increased hygiene requirements prevail, for example, directly above a person to be operated on. Since above the workplace usually strongly radiating illumination devices, such as surgical lights, are located, this embodiment has the additional advantage that the suction and the air flow due to the generated thermal amplifying surgical lights are located in the vertical direction substantially on a straight line and interact optimally can.
  • the suction device has inlet nozzles and the inlet nozzles are positioned in the ceiling above a working surface of the workplace.
  • the inlet nozzles which can be displaced by hand if necessary, can be positioned particularly precisely at the desired location or wherever optimum air cleaning is required, and thus further optimize the airflow guidance.
  • a symmetry of the flow conditions within the chamber is desirable in that it causes uniform conditions with respect to the air quality in the chamber.
  • the invention relates to an operating room, in which a device is integrated according to at least one of the embodiments specified above.
  • FIG. 1a schematically shows the flow conditions in devices for room ventilation according to the prior art, which are used in particular in operating theaters. These are in the in FIG. 1a Example shown to the case of a so-called displacement ventilation, according to which the air flow, indicated here by arrows, in the Z-direction from top to bottom.
  • Such a type of air duct corresponds to the main air flow at the in the above-mentioned DE 699 15 367 T2 described prior art, according to which the air is supplied from a ceiling wall 10.
  • FIG. 1b another air flow guide is shown which is conventionally used. It is a so-called “mixed ventilation” in which the air flow is circulated. Again, the introduction of air usually takes place in the area of the ceiling wall 10.
  • the device according to the invention is designated in its entirety by the reference numeral 100.
  • the device 100 is for ventilating a chamber 1 (operating room) or, more generally, for forming an air flow within the chamber.
  • the chamber 1 has a ceiling wall 10, side walls 11 and a bottom 12 in a conventional manner.
  • a plurality of air supply devices 20 are present in the bottom region, which in the embodiment shown consists of in each case one inlet opening 21, which is located here in the bottom 12, and one fan 22. It should be noted that the fan 22 may also be located remotely from the chamber in an alternative arrangement.
  • the air supply means 20 are provided to supply fresh air from the outside to the interior of the chamber.
  • an air suction device 30 with an outlet opening 31, which serves to expose spent and / or contaminated air from the chamber 1.
  • a plurality of air suction devices 30 may also be present.
  • the air flow which is indicated by arrows in the figure, extends between the air supply means 20 and the outlet opening 31, wherein in the case shown forms a so-called stratified flow, which means that the flow path in an upper region of the chamber or the chamber is different from that of a lower portion of the chamber.
  • the air flow is on the one hand by the Lucasabsaug Rhein 30 and on the other hand by a flow path located in the heat source 40, which may be, for example, a surgical light out.
  • the over the Air supply means 20 introduced air flows in the lower area initially against a workstation 50, on the top of which a working surface 51 is located.
  • the workstation 50 may be, for example, an operating table and the work surface 51 the area on which a patient to be treated lies.
  • the deflected by the workstation 50 air flows through the suction effect of the heat source 40 and air suction device 30 in the upper region, where it is partially guided in lateral circular flows K until it exits via the outlet opening 31 from the chamber.
  • FIG. 3 is the embodiment of FIG. 2 in plan view, and thus shown perpendicular to the Z-direction.
  • a total of four blowers 22 are present, which are arranged here at least in pairs symmetrically with respect to the workstation 50.
  • this symmetry is desirable for the formation of the most uniform flow conditions over the entire base area of the chamber in the XY direction.
  • the fans 22 can also be installed or mounted in the region of corners 11a of the side walls 11. In this way, the entire base area of the chamber would be particularly well achieved by the air flow.
  • FIG. 4 a further embodiment of the invention is shown in cross-sectional view.
  • a first air supply means 20 which here with an inlet opening 21 and a not is formed fan, attached to a side wall 11 of the chamber in the immediate vicinity of the bottom 12, ie adjacent to this.
  • a first. Air suction device 30 so that in a lower, near-ground region of the chamber, an air flow path extends directly from the first air supply means 20 to the first air suction device 30.
  • This first air flow path is deflected hardly or not at all upwards, which is why the already mentioned bottom stratification is formed.
  • This bottom layering is less the ventilation of the chamber as much as the direct dissipation of soil contaminants, which are introduced for example by the footwear of the persons located in the chamber.
  • further air supply devices 20 ' are mounted on the side walls 11, wherein two further air supply devices 20' are shown here. It should be noted, however, that the number of further air supply devices 20 'is not limited in the context of the invention and that, for example, only one additional air supply device 20' or more than two additional air supply devices 20 'can be present.
  • These further air supply means 20 ' provide for the supply of fresh air in an upper region of the chamber, in which, for example, the working surface 51 of the workstation 50 (not shown in this figure for reasons of clarity of illustration).
  • the further air supply devices 20 cooperate with a further air suction device 30', which is here formed in the top wall 10 of the chamber.
  • a further air suction device 30' which is here formed in the top wall 10 of the chamber.
  • two substantially separate layer flows formed, one in a first, near the bottom of the chamber and one in an overlying second area.
  • the layer flows fulfill different functions from one another, so that in this embodiment a good supply of fresh air to a hygiene area (work surface 51 of the workstation 50 or operating table) and a safe removal of floor-side contaminations without them entering the hygiene area are ensured is.
  • more than two mutually substantially separate layer flows can be formed by using further groups of air supply means and air suction means.
  • FIG. 5 a further embodiment of the invention is shown in cross-sectional view.
  • the two air supply means 20 are respectively arranged or fixed near the bottom in corners 11a of the chamber.
  • a workstation 50 with a substantially horizontally arranged worktop 51 on which, when the workstation 50 is an operating table, the patient to be operated is located.
  • This place forms a critical point within the chamber in that there highest sanitary standards must be realized.
  • FIG. 5 illustrated embodiment of the invention between the heat source 40 (or the operating light) and the work surface 51 an inlet nozzle 31 is mounted, which in practice either removable in a holder (not shown) added or fixed over the work surface 51 may be installed.
  • a plurality of inlet nozzles 31 may be present at different positions.
  • the inlet nozzles 32 are positioned above the working surface 51 of the workstation 50. Moreover, unlike the embodiment shown, it is possible to position the inlet nozzle 31 laterally of the heat source 40 or operating light or obliquely above it.
  • the inlet nozzle 32 allows a particularly accurate and intensive suction of spent air at the point where this is necessary. In addition, by using the inlet nozzle 32, a certain detection depth is achieved during the extraction. In order to be easy to handle, the inlet nozzle 32 is here fastened with a connecting hose 33 to the air suction device 30 (located outside the chamber here).
  • the device according to the invention offers numerous advantages over those of the prior art, some of which have already been described. It should also be mentioned that the device according to the invention can also be operated exclusively with outside air (i.e., without internal air conditioning in the chamber). This allows a direct removal of germs and odors without storing waste products.
  • the ventilation can be realized with low air velocities, which contributes to the well-being of the persons located inside the chamber, since strong air currents or drafts are perceived by most people as unpleasant.
  • a particularly low-contamination environment of an operating area can be achieved by targeted suction and suitable combination of layer flows.
  • the arrangement is also not dependent on the position of the operating lights and possibly existing monitors or the associated suspension devices.

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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)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ventilation (AREA)
  • Drying Of Solid Materials (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)

Claims (10)

  1. Salle d'opération avec un dispositif (100) pour la ventilation de la salle d'opération, avec une table d'opération avec une paroi de plafond (10), des parois latérales (11), ainsi qu'un sol (12), le dispositif comportant un système d'alimentation d'air (20), ainsi qu'un système d'aspiration d'air (30) et en cours de fonctionnement du dispositif, le système d'alimentation d'air (20) et le système d'aspiration d'air (30) interagissant pour créer un trajet de flux d'air, le système d'alimentation d'air (20) étant monté dans une région proche du sol de la salle d'opération et comprenant un orifice d'entrée (21) dans l'une des paroi latérales (11) ou dans le sol (12) de la salle d'opération, caractérisée en ce que le système d'aspiration d'air (30) est monté au-dessus du système d'alimentation d'air (20), le dispositif (100) étant réalisé de telle sorte que d'une part, par le système d'aspiration d'air (30) et d'autre part, par une lampe chirurgicale qui est une source thermique (40), située dans le trajet de circulation, le flux d'air soit conduit dans une région supérieure.
  2. Salle d'opération selon la revendication 1, caractérisée en ce que les parois latérales (11) sont contiguës par des coins (11a) et le système d'alimentation d'air (20) est positionné dans la région des coins (11a) des parois latérales (11).
  3. Salle d'opération selon la revendication 2, caractérisée en ce que plusieurs systèmes d'alimentation d'air (20) sont présents, chaque système d'alimentation d'air (20) étant positionné dans l'un des coins (11a) des parois latérales (11).
  4. Salle d'opération selon l'une quelconque des revendications précédentes, caractérisée en ce que le système d'alimentation d'air (20) est dimensionné de telle sorte que la vitesse de sortie de la circulation d'air soit < 0,2 m/s.
  5. Salle d'opération selon l'une quelconque des revendications précédentes, caractérisée en ce que chaque système d'alimentation d'air (20) comprend de préférence une soufflante (22), les systèmes d'alimentation d'air (20) étant placés dans l'environnement de la table d'opération se trouvant dans la salle d'opération et à distance égale par rapport à celle-ci.
  6. Salle d'opération selon la revendication 5, caractérisée en ce que les soufflantes (22) sont dimensionnées de telle sorte qu'à la table d'opération, il s'installe dans le sens de la hauteur Z un gradient thermique inférieur ou égal à 0,5 K/m.
  7. Salle d'opération selon la revendication 5 ou 6, caractérisée en ce que les systèmes d'alimentation d'air (20) sont positionnés sous la forme d'un rectangle tout autour de la table d'opération.
  8. Salle d'opération selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif d'aspiration (30) est positionné au-dessus d'une table d'opération qui se trouve dans la salle d'opération.
  9. Salle d'opération (100) selon la revendication 8, caractérisée en ce que le système d'aspiration (30) comporte des buses d'entrée (32), les buses d'entrée (32) étant positionnées avec un écart au-dessus d'une surface de travail (51) de la table d'opération.
  10. Salle d'opération selon l'une quelconque des revendications précédentes, caractérisée en ce que plusieurs systèmes d'alimentation d'air (20), ainsi que plusieurs systèmes d'aspiration d'air (30) sont présents, respectivement les systèmes d'alimentation d'air (20) et les systèmes d'aspiration d'air (30) étant placés en symétrie mutuelle, à l'intérieur d'un plan X-Y lequel s'étend à la perpendiculaire du sens de la hauteur Z.
EP10163197.6A 2009-05-19 2010-05-19 Dispositif d'aération Active EP2258991B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009007204U DE202009007204U1 (de) 2009-05-19 2009-05-19 Lüftungsvorrichtung

Publications (3)

Publication Number Publication Date
EP2258991A2 EP2258991A2 (fr) 2010-12-08
EP2258991A3 EP2258991A3 (fr) 2012-02-29
EP2258991B1 true EP2258991B1 (fr) 2017-10-25

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EP10163197.6A Active EP2258991B1 (fr) 2009-05-19 2010-05-19 Dispositif d'aération

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DE (1) DE202009007204U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012101093U1 (de) 2012-03-27 2012-07-03 Viessmann Kältetechnik AG PCM-Element
DE102014104010A1 (de) * 2014-03-24 2015-09-24 Imtech Deutschland Gmbh & Co. Kg Anordnung zum Abführen von Lacknebel beim Lackieren eines Bauteils, wie einen Flugzeugrumpf und Lacknebelabführverfahren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH504652A (de) * 1969-03-05 1971-03-15 Sulzer Ag Klimatisierungsanlage für Verkaufsräume
DE2309390C3 (de) * 1973-02-24 1982-04-29 Stierlen-Maquet Ag, 7550 Rastatt Operationsraum mit keimfreier Belüftung des Operationsbereiches
SE8803854L (sv) * 1988-10-27 1990-04-28 Morgan Johansson Foerfarande och anordning foer ventilering av arbetsplatser
DE4327397A1 (de) * 1993-08-14 1995-02-16 Kessler & Luch Gmbh Pflegebett mit lüftungstechnischer Versorgungseinrichtung
SE513220C2 (sv) 1998-12-02 2000-07-31 Johnson Medical Dev Pte Ltd Sätt och anordning vid rumsventilation för s.k. renrum
US6318113B1 (en) * 2000-06-12 2001-11-20 Hans F. Levy Personalized air conditioned system

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EP2258991A3 (fr) 2012-02-29
DE202009007204U1 (de) 2010-05-06
EP2258991A2 (fr) 2010-12-08

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