EP1803431A1 - Mobile Haube zur Erzeugung eines gleichgerichteten Luftstromes - Google Patents

Mobile Haube zur Erzeugung eines gleichgerichteten Luftstromes Download PDF

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Publication number
EP1803431A1
EP1803431A1 EP05425945A EP05425945A EP1803431A1 EP 1803431 A1 EP1803431 A1 EP 1803431A1 EP 05425945 A EP05425945 A EP 05425945A EP 05425945 A EP05425945 A EP 05425945A EP 1803431 A1 EP1803431 A1 EP 1803431A1
Authority
EP
European Patent Office
Prior art keywords
equipment
blower hood
laminar flow
hood
patient
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.)
Withdrawn
Application number
EP05425945A
Other languages
English (en)
French (fr)
Inventor
Francesco Della Valle
Michela Rampazzo
Vanni Canton
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.)
Epitech Group SpA
Original Assignee
Epitech Group SpA
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 Epitech Group SpA filed Critical Epitech Group SpA
Priority to EP05425945A priority Critical patent/EP1803431A1/de
Publication of EP1803431A1 publication Critical patent/EP1803431A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation

Definitions

  • the present invention relates to a mobile laminar hood, particularly an equipment comprising a blower hood suitable to create a laminar flow of sterile air.
  • the equipment according to the invention comprises a support which allows selecting the position of the hood and the direction of the hood flow.
  • a high level of overall sterility may be required in a very narrow working area. This requirement does not justify the very expensive use of those methods and equipment which are normally used in the hospital operating rooms.
  • blower hoods are known which are suitable to obtain a high level of sterility in a narrow area.
  • Microfiltration of the air is carried out by means of HEPA (High Efficiency Particulate Air ) filters, the efficiency thereof complies with the EN 1822 standards. More than 99,99% efficiency is typically required for these filters on particles with a diameter as large as 0,3 ⁇ m. This high filtering power substantially eliminates the entirety of the contaminants in the air flow.
  • HEPA High Efficiency Particulate Air
  • the laminar flow created by the blower hood consists of a series of threads parallel to each other and all having the same speed.
  • the typical speeds of this kind of flows are about 0,5 m/s.
  • the laminar flow because of the absence of vortexes, maintains a high separation between what is entrained in the flow and what is outside the same.
  • these hoods allow a high protection both in the working area which is directly involved in the flow and to the operator outside thereof. By means of these hoods, in fact, mutual and environmental contamination is prevented.
  • sterile boxes are mounted, in fact, on fixed structures, which can be generally accessed only from one side and are closed on the three other sides, such as to form real sterile boxes.
  • the sterile boxes are intended for fixed installation inside the laboratory. They cannot be easily hoisted and allow operating only on samples of definite size, particularly those samples that can be completely introduced in the box.
  • the object of the present invention is to provide an equipment having such characteristics as to meet the requirements mentioned above, which have not been met in the prior art.
  • a task of the present invention is to provide an equipment which allows operating on patients under a high level of sterility, and thus in safety.
  • Another task of the present invention is to provide an equipment capable of creating a sterile working area that can be easily arranged each time in the most suitable position for a particular requirement.
  • Figure 1 is a side elevational view of an embodiment of the equipment according to the invention.
  • Fig. 2 are side views of a detail of an equipment similar to that of Fig. 1, in different configurations of use;
  • FIG. 3 is a perspective view of another embodiment of the equipment according to the invention.
  • Fig. 4 is a perspective view of an equipment according to the invention similar to that of Fig. 3;
  • Fig. 5 is a perspective view of an equipment according to the invention similar to that of Fig. 1, in a configuration of use;
  • Fig. 6 are side views of a further embodiment of the equipment according to the invention, in different configurations of use.
  • an equipment according to the invention is generally designated with reference 1.
  • the equipment according to the invention comprises a blower hood 2 and support means 3 for the blower hood 2.
  • the blower hood 2 the operating principle thereof being known per se, is suitable to create a laminar flow of sterile air.
  • the blower hood 2 comprises a microfilter, for example a HEPA filter.
  • the microfilter has more than 99,99% efficiency on particles having a diameter as large as 0,3 ⁇ m.
  • the microfilter has more than 99,997% efficiency, such that substantially the entirety of the contaminants in the air flow is eliminated.
  • the blower hood 2 comprises a pre-filter upstream of the HEPA microfilter.
  • This pre-filter can be easily removed and quickly replaced, and provides a longer operating life to the microfilter.
  • the pre-filter has 75% efficiency.
  • the blower hood 2 comprises a motor-fan, preferably with low background noise.
  • the blower hood 2 comprises a lighting lamp, for example a fluorescence or incandescence lamp.
  • the lighting lamp is suitable for lightening the work area involved in the laminar flow.
  • the lighting lamp is suitable to provide a sufficient light for safe operation.
  • the blower hood 2 further comprises a germicidal lamp, for example an ultraviolet germicidal lamp.
  • the blower hood 2 is capable of ensuring a high level of sterility in the work area which is directly involved in the laminar flow.
  • the support means 3 for the blower hood 2 are suitable to allow adjusting the position of the blower hood 2 and adjusting the direction of said laminar flow. At the same time, the support means 3 are suitable to ensure stability both to the position of the blower hood 2 and the direction of the laminar flow.
  • the support means 3 are suitable to maintain unchanged the position and direction of the hood under the effect of the hood weight, under the effect of the reaction force originating from the ejection of the air flow, under the effect of the force that the operator has to apply for operating any control located on the hood, etc.
  • the support means 3 allow the user to position the blower hood 2 as desired within the surgery, medical room or laboratory.
  • the support means 3 further allow arranging the blower hood 2 such that the laminar flow produced by the latter is oriented in the direction required by the operator.
  • the support means 3 allow holding the blower hood 2 steadily in the desired position and holding the laminar flow steadily in the desired direction.
  • the equipment 1 according to the invention is particularly suited for being used in surgeries, medical rooms or laboratories requiring a high level of sterility in a narrow working area which cannot be established in advance, and that can be arranged in different places.
  • the preferred use of the equipment 1 according to the invention is in surgeries or medical rooms, where small operations are performed on patients which require a high level of local sterility.
  • the support means 3 comprise a base 30 and a series of rods 31 connected by means of joints 32.
  • the base 30 is made such that a high stability is ensured for the equipment, for example comprising a wide support surface (see Fig. 3 and 4), or comprising a ballast or similar anchoring means.
  • the base 30 comprises moving means 301 suitable to provide the base 30 with facility of movement when the equipment 1 is being moved.
  • These means 201 may comprise wheels, rolls, balls, and the like.
  • the base 30 comprises stop means 302 suitable to increase stability and restrain the mobility of the base 30 when the equipment 1 does not require to be moved further.
  • the stop means 302 may for example comprise stops suitable to act on the surface on which the base 30 is moving or brakes suitable to act on the moving means 301, when provided.
  • the rods 31 and the joints 32 are made such that they provide the blower hood 2 with all the degrees of freedom as deemed necessary for the particular case.
  • a rod 311 of a preset length and a telescopic rod 312 are provided. This solution allows, when the base 30 of the equipment 1 has been fixed, to obtain a translation of the blower hood 2 in the direction of the telescopic rod 312.
  • a flat hinge joint 321 and a ball hinge joint 322 are used.
  • the flat hinge joint 321 allows a relative rotation of the two arms connected thereto in the drawing plane about a hinge axis.
  • the flat hinge joint 321 allows obtaining a rotation of the hood 2 about the axis of the hinge perpendicular to the directions of the two rods connected to the hinge 321.
  • the ball hinge joint 322 allows the two arms connected thereto to relatively rotate in the space, about a hinge center.
  • the ball hinge joint 322 allows obtaining a rotation of the hood 2 about the center of the hinge.
  • a sleeve coupling 323 is used.
  • the sleeve coupling 323 allows a rotation about the axis of the rod 31 to which it is connected. In other words, the sleeve coupling 323 allows obtaining a rotation of the hood 2 about the axis of the rod connected to the coupling 323.
  • blower hood 2 that is placed at the end of a chain of rods 31 and joints 32 benefits from the sum of all the degrees of freedom introduced by each of the rods 31 and each of the joints 32.
  • the telescopic rods and the joints comprise means for constantly applying a predetermined counterforce to the movement, such that undesired movement is prevented under the effect of the typical loads acting on the blower hood 2 upon use.
  • These means may for example comprise systems for obtaining a discrete pitch movement, for example snap systems defining subsequent predefined stable equilibrium positions.
  • the telescopic rods 312 and the hinge joints 32 comprise means for increasing and/or decreasing their resistance to the movement.
  • These means may for example comprise screw ring nuts like those designated with 310 in Fig. 5 or 320 in Fig. 2.
  • the equipment 1 according to the invention further comprises a furniture element suitable for use in the surgery, medical room or laboratory.
  • this furniture element is an arm-chair or a bed 4 suitable to accommodate a patient.
  • the arm-chair 4 and the blower hood 2 share the base 30.
  • the support means 3 and the arm-chair 4 share the structure 34 which extends from the base 30 to an arm-rest 40.
  • the support means 3 start from base 30, independently from the arm-chair 4.
  • the stability of the position of the blower hood 2 benefits from the wide base 30, and the overall mass resting thereon, which makes the blower hood particularly firm.
  • This mass in fact, comprises the arm-chair mass, and when the equipment 1 is running, the patient's mass.
  • the arm-chair 4 is of the type commonly used in podology surgeries.
  • This type of arm-chair generally comprises patient-moving means.
  • the patient-moving means may for example comprise a reclining backrest 41, a swinging seat 42, a mechanism suitable to lift the entire arm-chair 4.
  • the arm-chair as illustrated in Fig. 3 and 4 further comprises two leg-rests 44 suitable to raise and lower the patient's legs, independently of each other.
  • the arm-rest 40' from which the support means 3 start is stationary relative to the arm-chair.
  • the patient in fact, cannot approach and leave the arm-chair 4 from the side housing the support means 3.
  • the opposite arm-rest 40" is movable in order to facilitate the patient to approach and leave the arm-chair.
  • the arm-chair or bed may be of a different type, for example of the type used in the dentistry, otolaryngology, gynaecology, general surgery, veterinary surgeries, etc.
  • the arm-chair or bed can be of yet another type, for example the type used in those rooms where beauty treatments, tattoos, etc. are performed.
  • the furniture element comprised in the equipment 1 according to the invention is a cabinet 5, for example provided with drawers and racks to put away the tools used in the surgery, medical room, or laboratory.
  • This embodiment allows, similarly to Fig. 3 and 4, using the mass of the furniture element and the tools contained therein for providing stability to the support means 3. Furthermore, as may be seen in Fig. 6.a, when the blower hood is not running, the equipment 1 can take a configuration requiring a space just greater than that required by a normal tool cabinet.
  • the equipment 1 according to the invention allows obtaining a high degree of local sterility, such that operations can be performed on patients under safety conditions.
  • the equipment 1 provides a blower hood 2 that can be easily arranged each time in the most suitable position for the particular requirement, and the laminar flow thereof can be easily arranged each time in the most suitable direction for the particular requirement.
  • the operator has to identify the area in the patient's body where he has to operate.
  • the operator selects a position for the blower hood 2 and adjust the direction of the laminar flow such that the laminar flow involves the area in the patient's body which had been previously identified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (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)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP05425945A 2005-12-30 2005-12-30 Mobile Haube zur Erzeugung eines gleichgerichteten Luftstromes Withdrawn EP1803431A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05425945A EP1803431A1 (de) 2005-12-30 2005-12-30 Mobile Haube zur Erzeugung eines gleichgerichteten Luftstromes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05425945A EP1803431A1 (de) 2005-12-30 2005-12-30 Mobile Haube zur Erzeugung eines gleichgerichteten Luftstromes

Publications (1)

Publication Number Publication Date
EP1803431A1 true EP1803431A1 (de) 2007-07-04

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Family Applications (1)

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EP05425945A Withdrawn EP1803431A1 (de) 2005-12-30 2005-12-30 Mobile Haube zur Erzeugung eines gleichgerichteten Luftstromes

Country Status (1)

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EP (1) EP1803431A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011020940A1 (es) * 2009-08-18 2011-02-24 Carlos Ruiz Lapuente Dispositivo emisor de flujo laminar
WO2016040334A1 (en) * 2014-09-08 2016-03-17 Becton, Dickinson And Company Aerodynamically streamlined enclosure for input devices of a medication preparation system
US9930297B2 (en) 2010-04-30 2018-03-27 Becton, Dickinson And Company System and method for acquiring images of medication preparations
CN110220290A (zh) * 2019-07-01 2019-09-10 常州市浩东净化设备科技有限公司 卡扣式手术室用发光层流罩
IT202000015502A1 (it) * 2020-06-26 2021-12-26 Renato MARIALTO Dispositivo di erogazione di una barriera protettiva a flusso d'aria unidirezionale sanificata e metodo di produzione di tale flusso d'aria”

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045192A (en) * 1975-09-06 1977-08-30 Dragerwerk Aktiengesellschaft Mobile filtering apparatus for keeping patients under aseptic conditions
DE3633132A1 (de) * 1985-10-23 1987-04-23 Duehring Consult Gmbh Vorrichtung fuer die zufuhr von reinstluft
WO1998019646A1 (en) * 1996-11-04 1998-05-14 Respiraid Ltd. Treated air supply

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045192A (en) * 1975-09-06 1977-08-30 Dragerwerk Aktiengesellschaft Mobile filtering apparatus for keeping patients under aseptic conditions
DE3633132A1 (de) * 1985-10-23 1987-04-23 Duehring Consult Gmbh Vorrichtung fuer die zufuhr von reinstluft
WO1998019646A1 (en) * 1996-11-04 1998-05-14 Respiraid Ltd. Treated air supply

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2409538R1 (es) * 2009-08-18 2014-03-31 Carlos Ruiz Lapuente Dispositivo emisor de flujo laminar
WO2011020940A1 (es) * 2009-08-18 2011-02-24 Carlos Ruiz Lapuente Dispositivo emisor de flujo laminar
US11064164B2 (en) 2010-04-30 2021-07-13 Becton, Dickinson And Company System and method for acquiring images of medication preparations
US11838690B2 (en) 2010-04-30 2023-12-05 Becton, Dickinson And Company System and method for acquiring images of medication preparations
US9930297B2 (en) 2010-04-30 2018-03-27 Becton, Dickinson And Company System and method for acquiring images of medication preparations
US11516443B2 (en) 2010-04-30 2022-11-29 Becton, Dickinson And Company System and method for acquiring images of medication preparations
US10412347B2 (en) 2010-04-30 2019-09-10 Becton, Dickinson And Company System and method for acquiring images of medication preparation
US10554937B2 (en) 2010-04-30 2020-02-04 Becton, Dickinson And Company System and method for acquiring images of medication preparations
US11341641B2 (en) 2014-09-08 2022-05-24 Becton, Dickinson And Company Aerodynamically streamlined enclosure for input devices of a medication preparation system
US10853938B2 (en) 2014-09-08 2020-12-01 Becton, Dickinson And Company Enhanced platen for pharmaceutical compounding
US10692207B2 (en) 2014-09-08 2020-06-23 Becton, Dickinson And Company System and method for preparing a pharmaceutical compound
US10679342B2 (en) 2014-09-08 2020-06-09 Becton, Dickinson And Company Aerodynamically streamlined enclosure for input devices of a medication preparation system
US11568537B2 (en) 2014-09-08 2023-01-31 Becton, Dickinson And Company Enhanced platen for pharmaceutical compounding
US11763448B2 (en) 2014-09-08 2023-09-19 Becton, Dickinson And Company System and method for preparing a pharmaceutical compound
WO2016040334A1 (en) * 2014-09-08 2016-03-17 Becton, Dickinson And Company Aerodynamically streamlined enclosure for input devices of a medication preparation system
CN110220290A (zh) * 2019-07-01 2019-09-10 常州市浩东净化设备科技有限公司 卡扣式手术室用发光层流罩
CN110220290B (zh) * 2019-07-01 2024-04-19 常州市浩东净化设备科技有限公司 卡扣式手术室用发光层流罩
IT202000015502A1 (it) * 2020-06-26 2021-12-26 Renato MARIALTO Dispositivo di erogazione di una barriera protettiva a flusso d'aria unidirezionale sanificata e metodo di produzione di tale flusso d'aria”

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