US3875853A - Assembly for separating a part of a space - Google Patents

Assembly for separating a part of a space Download PDF

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Publication number
US3875853A
US3875853A US301095A US30109572A US3875853A US 3875853 A US3875853 A US 3875853A US 301095 A US301095 A US 301095A US 30109572 A US30109572 A US 30109572A US 3875853 A US3875853 A US 3875853A
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US
United States
Prior art keywords
assembly
air
suction
space
side walls
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.)
Expired - Lifetime
Application number
US301095A
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English (en)
Inventor
Simon Pielkenrood
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.)
Pielkenrood Vinitex BV
Original Assignee
Pielkenrood Vinitex BV
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
Priority claimed from NL7114989A external-priority patent/NL7114989A/xx
Application filed by Pielkenrood Vinitex BV filed Critical Pielkenrood Vinitex BV
Application granted granted Critical
Publication of US3875853A publication Critical patent/US3875853A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • A61G10/00—Treatment rooms or enclosures for medical purposes
    • A61G10/02—Treatment rooms or enclosures for medical purposes with artificial climate; with means to maintain a desired pressure, e.g. for germ-free rooms
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/29—Air curtains

Definitions

  • Pielkenrood 1 i ASSEMBLY FOR SEPARATING A PART OF A SPACE Inventor: Simon Pielkenrood, Parklaan, Netherlands [73] Assignee: Pielkenrood-Vinitex B. V.
  • which assembly comprises an upper wall which is pervious for air and which is sup ported on a framework. and further comprises side walls which consist, at least partially. of a transparent plastics foil or plate material, and which extend to the vicinity of the bottom.
  • a raised floor is provided inside the separated space with suction channels in the raised floor communicating with suction openings in the side walls of the floor and with suction units connected or conncctable to the suction channels.
  • the suction units are provided with fine dust filters which are adapted to remove disease germs from the air which is exhausted from the separated part of the space.
  • This assembly is, furthermore, provided with a filter box above the upper wall which is connected to one or more Now ers so as to provide a substantially vertical downwardly directed dust-free air flow inside the separated space, which dust-free air is allowed to escape at the lower side below the side walls.
  • the floor inside this space is raised, and extends to the vicinity of the side walls, so that, there, small exit gaps are provided in which the velocity of the emerging air is sufficiently high for preventing dust from penetrating.
  • Such an assembly is used for nursing patients which, because of an extremely low resistance against infection or because of a special sensitivity for dust, should be nursed in a dust-free and, therefore, germ-free environment. With such an assembly it is effectively prevented that unfiltered air enters this separated space, and the emerging air can freely flow off into the surroundings. Furthermore, openings with gloves fixed therein and at least one transfer cabinet are provided in the wall, so as to be able to nurse the patient and to provide this patient with food and the like from the outside. without disturbing the dust-free condition within the nursing space.
  • the assembly described in the patent application mentioned above which is designed for avoiding such objections, is not suitable for nursing such contagious patients, since the air which has contacted the patient can flow off to the environment.
  • the invention provides a special embodiment of such an assembly, so that it becomes suitable for nursing contagious patients.
  • the assembly according to the invention is characterized by suction channels in the side walls of the raised floor, and by suction units to be connected to these channels and provided with such dust filters that the disease germs are effectively removed from the air exhausted from the separated space.
  • means are provided for causing inwardly directed leak flows at the upper and lower side of the side walls, the latter, in particular, consisting of pliable transparent plastics curtains, in order to prevent any air from leaking away from the inside of the separated space.
  • the invention provides a suitable transfer cabinet which is adapted for transferring food and the like towards the inside without contaminated air being able to flow outwards.
  • FIG. 1 a diagrammatic cross-section of an assembly of the invention
  • FIGS. 2 and 3 partial sections at a larger scale of two embodiments of special auxiliary means at the lower side of a side wall of such an assembly;
  • FIG. 4 a partial section at a larger scale of the suspension of a side wall of such an assembly
  • FIGS. 5 and 6 a partial section and front view respectively of a transfer cabinet for such an assembly.
  • the assembly according to the invention shown in FIGS. 1 4 comprises one or more units I, each consisting of four columns 2 supporting a top structure constituted by a filter box 3, to which air may be supplied by a supply duct 4. Between these columns side walls 5 are suspended, these walls preferably consisting of transparent plastics curtains with pleats 5'. These side walls extend to the vicinity of the floor, where an air gap 6 remains free. Inside each unit a raised floor or platform 8 with straight side walls 9 is arranged, the latter walls being situated near the side walls 5.
  • U-bars 11 are mounted in which rails 12 for rollers 13 are fixed, on which rollers the side walls 5 are suspended.
  • a resilient flap 14 is attached, providing a certain sealing of the upper side of the side walls.
  • a transfer cabinet 15 is arranged, its inner space 16 communicating, by means of an opening 18 in the adjacent side wall 5, with the interior of the unit I in question.
  • a filter-blower cabinet I7 is provided which is adapted to maintain a certain air flow inside this space 16.
  • a bed 20 is placed, by means of which a disinfectant may be sprayed into the interior space of this unit. Furthermore, a cavity 22 is provided in the raised floor, through which air may be exhausted from the unit 1.
  • the purpose of the elements described above in the assembly of the copending patent application is to maintain a vertical air flow inside the unit 1, which air flow is supplied at a given positive pressure in respect of the surroundings, and is allowed to leak away through the bottom gaps 6 and along the flaps 14. In this manner dust is kept away from the space inside the side walls 2, so that a patient may be nursed in a dustfree and germ-free environment.
  • the exhaust through the cavity 22 is exclusively intended for removing harmful vapours of the disinfectant sprayed by the ducts 21, so that these vapours cannot emerge throughthe gaps 6 into the adjacent space.
  • the assembly of the invention is intended, in the first place, for nursing patients having a contagious disease, so that air having contacted this patient should be prevented from emerging into the adjacent space.
  • the air is exhausted from the unit 1 by means of a filterblower unit 40 which is, in the case shown, constructed as a movable unit connected to the cavity 22 of the floor 8 by means of a hose 41, apertures 42 opening in the outer wall 9 of this floor communicating with this cavity.
  • a filterblower unit 40 which is, in the case shown, constructed as a movable unit connected to the cavity 22 of the floor 8 by means of a hose 41, apertures 42 opening in the outer wall 9 of this floor communicating with this cavity.
  • the air is exhausted from the inside of the unit 1 along the side walls 5.
  • outside air is sucked in through the gaps 6 too, the latter air flow preventing air from leaking away from the in side of the unit.
  • a movable unit 40 also a stationary unit may be used which may be positioned in a suitable location. In
  • FIG. 3 shows another embodiment in which, instead of the boards 43, horizontal bars or tubes 44 are provided around the lower extremities of the walls 5, a plastics foil 45 being laid over these bars or tubes, which foil, furthermore, extends below the floor 8, and prevents soiling of the bottom.
  • a second flap 46 may be fixed at the upper side of the walls 5 in the channel bars 11, which flap is situated at the inner side of the wall 5 in question.
  • suction openings 47 are provided, communicating, for instance. with the cavity 22 in the floor 8 or directly with the unit 40, so that, at the upper side of the wall 5, the same effeet is obtained as at the lower side near the floor 8.
  • the filters in the box 3 and a supply blower communicating with the supply duct 4 are, in principle, superfluous when there is no objection against outside air en tering the unit 1.
  • a supply blower communicating with the supply duct 4 is, in principle, superfluous when there is no objection against outside air en tering the unit 1.
  • the flow resistance of these filters is high, it may occur that the pressure inside the unit 1 becomes too low, and then the pliable walls 2 will be pressed inwards.
  • FIGS. 5 and 6 show a special embodiment of a transfer cabinet 15.
  • This cabinet has preferably transparent walls, for instance of rigid plastics plates, and, at the front side, a hinged lid 47 with holes 48 which are closed by gloves 48' is provided. Also in at least one side wall a similar hole 48 with a glove 48' is provided, thus enabling to take over from within an object which is introduced through the front opening after opening the lid only a little.
  • the rear wall of this cabinet is provided with a rigid clamping rim 49 in which the edges of an opening provided in the adjacent side wall 5 of the unit 1 may be clamped.
  • the inner space 16 of this cabinet is, at the lower side, delimited by a working surface 50, and, if desired, shelves 50' may be provided in a lateral part for storing certain objects.
  • a blower 51 is arranged, having its intake side connected to a slot 52 in the bottom 50, which slot is situated near the lower edge of the lid 47.
  • a slot 52 in the bottom 50 which slot is situated near the lower edge of the lid 47.
  • an air flow is maintained originating from the vicinity of the filter box 3 and flowing along the front wall and the lid, and, in particular, also along the gloves 48'.
  • additional openings 52 may be provided in other points of the bottom for obtaining an additional air curtain. It is also possible to close the opening 18 with a lid or a flexible flap.
  • the discharge side of the blower 51 may be provided with a filter 53 for allowing the air taken in to be blown off into the environment. It is, however, advisable to connect the discharge side 54 of this filter to the intake side of the filter box 3, in which case simple filters 53 will be sufficient, and it is also possible to omit these filters completely in that case.
  • the space 17 may also accommodate the complete filterblower unit for maintaining the desired air flow in the separated space, in which case a separate blower 51 for cabinet 15 may be superfluous.
  • the suction unit 40 may be constructed in many different ways, and, in particular, the unit described in my copending patent application Ser. No. l40,549 now US. Pat. No. 3,782,265 may be used, in which not only dust-filters for the normal operation of the assembly may be arranged, but also special absorbing beds for absorbing harmful vapours when the interior space of the assembly is being disinfected. Moreover, it is also possible to use separate suction units 40 for the normal filtering operation and for disinfecting purposes respec' tively.
  • An assembly for providing an enclosed space to be isolated and separated from its surroundings in that direct air flow from said space to said surroundings is impeded comprising:
  • a frame having a pervious top structure and side walls, having inner and outer surfaces, which extend from the top structure to the vicinity of the bottom thereof, and establishing lateral boundaries of the space as defined therewith, at least a portion of the side walls being flexible and suspended from the top structure at an upper edge and terminating in a lower edge above a floor, thereby forming a gap for permitting an air flow through the gap between a the floor and the lower edge of the suspended side walls;
  • a raised platform on the floor having suction channels communicating with at least one suction opening, having a lower edge, the side walls extending down, below the lower edge of the suction opening.
  • a suction unit connected to the suction opening for sucking air through the gap between the lower edge of the suspended side walls and the platform as well as from the space into the suction openings through said channels, thereby sustaining a down draft from said pervious top sturcture and maintaining an air curtain through continuous air flow from the surroundings through the gap underneath at least the bottom of the suspended portion of the side walls;
  • filter means included in the suction means capable of removing germs as sucked from said space.
  • baffle is formed by a plastics foil lying on the bottom and laid over bars extending parallel to the bottom.
  • the assembly of claim 1 provided with a transfer cabinet, the interior of which communicates with the interior of the separated space by means of a transfer opening in a side wall, characterized by a front lid hinged supported at its upper side for closing the opening of the transfer cabinet, and by suction openings provided in the bottom of this cabinet at least in the vicinity of the lower edge of this lid.
  • the assembly of claim 10 provided with a suction unit arranged below the transfer cabinet, characterized in that the outflow end of this unit is connected to the air supply of the upper side of the assembly so as to obtain a substantially closed circuit into which additional filters are included.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Pulmonology (AREA)
  • Ventilation (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US301095A 1971-10-31 1972-10-26 Assembly for separating a part of a space Expired - Lifetime US3875853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7114989A NL7114989A (fr) 1971-04-29 1971-10-31

Publications (1)

Publication Number Publication Date
US3875853A true US3875853A (en) 1975-04-08

Family

ID=19814375

Family Applications (1)

Application Number Title Priority Date Filing Date
US301095A Expired - Lifetime US3875853A (en) 1971-10-31 1972-10-26 Assembly for separating a part of a space

Country Status (6)

Country Link
US (1) US3875853A (fr)
BE (1) BE790708A (fr)
CA (1) CA970207A (fr)
DE (1) DE2252692A1 (fr)
FR (1) FR2158340B1 (fr)
GB (1) GB1405477A (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505190A (en) * 1982-04-19 1985-03-19 Nuclear & Environmental Protection, Inc. Portable maintenance exhaust hood
US4604111A (en) * 1981-11-23 1986-08-05 Anthony Natale Particulate contamination control method and filtration device
US4723480A (en) * 1985-04-19 1988-02-09 Hitachi, Ltd. Manufacturing apparatus with air cleaning device
US4787297A (en) * 1987-08-27 1988-11-29 Texas Instruments Incorporated Stacked robotic work cell process station
US4890780A (en) * 1984-11-22 1990-01-02 Hitachi, Ltd. Manufacturing apparatus
US4920768A (en) * 1989-06-20 1990-05-01 Gpl Partnership Vapor retaining clothes transfer system
US4972688A (en) * 1989-06-20 1990-11-27 Gpl Partnership Vapor retaining clothes transfer system
US5299408A (en) * 1990-05-11 1994-04-05 Wine Recorker, Inc. Wine recorking apparatus and method
US5314377A (en) * 1992-10-05 1994-05-24 Airo Clean Inc. Clean air isolation enclosure
DE19537243A1 (de) * 1995-10-06 1997-04-10 Schako Metallwarenfabrik Klimasystem zum Abführen von Luft
DE19721548A1 (de) * 1997-05-23 1998-11-26 Wachter Wurz Christine Luftreinigungsanlage
US20070298701A1 (en) * 2005-08-12 2007-12-27 Flow Sciences, Inc. Apparatus for transferring hazardous material
US7836878B1 (en) * 2006-05-08 2010-11-23 Agha Nazih S Appliance heat isolation system for attachment to a vent hood
US20140290162A1 (en) * 2013-03-29 2014-10-02 Shibuya Kogyo Co., Ltd. Isolator system
CN105434136A (zh) * 2016-01-15 2016-03-30 王美荣 内科检查装置
CN111391968A (zh) * 2020-03-18 2020-07-10 中国人民解放军海军军医大学 舰船舱室负压隔离系统
CN113237210A (zh) * 2021-06-22 2021-08-10 美的集团股份有限公司 空调器
EP3910255A1 (fr) * 2020-05-13 2021-11-17 GrowTrend Biomedical Co., Ltd. Système de protection à pression négative
US20220380968A1 (en) * 2021-05-26 2022-12-01 Ozhan Akcakaya Air-flow storage case

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640397C3 (de) * 1976-09-08 1979-09-13 Original Hanau Quarzlampen Gmbh, 6450 Hanau Behandlungszelt, insbesondere Operationszelt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194527A (en) * 1916-08-15 Ventilating system fob school-booms
US3505989A (en) * 1967-05-29 1970-04-14 Johnson & Johnson Controlled environmental apparatus
US3511162A (en) * 1969-02-20 1970-05-12 Johnson & Johnson Apparatus and method for isolating a patient zone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191386A (en) * 1968-05-02 1970-05-13 James Howorth & Company Ltd Improvements in Operating Theatres.
NL163422C (nl) * 1970-05-06 1980-09-15 Pielkenrood Vinitex Bv Samenstel voor het van een ruimte afscheiden van een stofvrij gedeelte.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194527A (en) * 1916-08-15 Ventilating system fob school-booms
US3505989A (en) * 1967-05-29 1970-04-14 Johnson & Johnson Controlled environmental apparatus
US3511162A (en) * 1969-02-20 1970-05-12 Johnson & Johnson Apparatus and method for isolating a patient zone

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604111A (en) * 1981-11-23 1986-08-05 Anthony Natale Particulate contamination control method and filtration device
US4505190A (en) * 1982-04-19 1985-03-19 Nuclear & Environmental Protection, Inc. Portable maintenance exhaust hood
US4890780A (en) * 1984-11-22 1990-01-02 Hitachi, Ltd. Manufacturing apparatus
US5015425A (en) * 1984-11-22 1991-05-14 Hitachi, Ltd. Manufacturing apparatus
US4723480A (en) * 1985-04-19 1988-02-09 Hitachi, Ltd. Manufacturing apparatus with air cleaning device
US4787297A (en) * 1987-08-27 1988-11-29 Texas Instruments Incorporated Stacked robotic work cell process station
US4920768A (en) * 1989-06-20 1990-05-01 Gpl Partnership Vapor retaining clothes transfer system
US4972688A (en) * 1989-06-20 1990-11-27 Gpl Partnership Vapor retaining clothes transfer system
US5299408A (en) * 1990-05-11 1994-04-05 Wine Recorker, Inc. Wine recorking apparatus and method
US5314377A (en) * 1992-10-05 1994-05-24 Airo Clean Inc. Clean air isolation enclosure
DE19537243A1 (de) * 1995-10-06 1997-04-10 Schako Metallwarenfabrik Klimasystem zum Abführen von Luft
DE19721548A1 (de) * 1997-05-23 1998-11-26 Wachter Wurz Christine Luftreinigungsanlage
US20070298701A1 (en) * 2005-08-12 2007-12-27 Flow Sciences, Inc. Apparatus for transferring hazardous material
US7381127B2 (en) * 2005-08-12 2008-06-03 Flow Sciences, Inc. Apparatus for transferring hazardous material
US7836878B1 (en) * 2006-05-08 2010-11-23 Agha Nazih S Appliance heat isolation system for attachment to a vent hood
US20140290162A1 (en) * 2013-03-29 2014-10-02 Shibuya Kogyo Co., Ltd. Isolator system
US9086225B2 (en) * 2013-03-29 2015-07-21 Shibuya Kogyo Co., Ltd. Isolator system
CN105434136A (zh) * 2016-01-15 2016-03-30 王美荣 内科检查装置
CN111391968A (zh) * 2020-03-18 2020-07-10 中国人民解放军海军军医大学 舰船舱室负压隔离系统
EP3910255A1 (fr) * 2020-05-13 2021-11-17 GrowTrend Biomedical Co., Ltd. Système de protection à pression négative
US20220380968A1 (en) * 2021-05-26 2022-12-01 Ozhan Akcakaya Air-flow storage case
CN113237210A (zh) * 2021-06-22 2021-08-10 美的集团股份有限公司 空调器
CN113237210B (zh) * 2021-06-22 2022-03-11 美的集团股份有限公司 空调器

Also Published As

Publication number Publication date
FR2158340B1 (fr) 1976-08-20
DE2252692A1 (de) 1973-05-10
GB1405477A (en) 1975-09-10
FR2158340A1 (fr) 1973-06-15
CA970207A (en) 1975-07-01
BE790708A (fr) 1973-04-30

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