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WO1998012469A1 - Eclairage de salles operatoires a tubes fluorescents - Google Patents

Eclairage de salles operatoires a tubes fluorescents Download PDF

Info

Publication number
WO1998012469A1
WO1998012469A1 PCT/AU1997/000622 AU9700622W WO9812469A1 WO 1998012469 A1 WO1998012469 A1 WO 1998012469A1 AU 9700622 W AU9700622 W AU 9700622W WO 9812469 A1 WO9812469 A1 WO 9812469A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
fluorescent tube
operating theatre
tube operating
fluorescent
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.)
Ceased
Application number
PCT/AU1997/000622
Other languages
English (en)
Inventor
Edwin Gordon Howard
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.)
MEDIPORT Pty Ltd
Original Assignee
MEDIPORT Pty Ltd
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 MEDIPORT Pty Ltd filed Critical MEDIPORT Pty Ltd
Priority to AU41927/97A priority Critical patent/AU4192797A/en
Publication of WO1998012469A1 publication Critical patent/WO1998012469A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • FLUORESCENT TUBE THEATRE LIGHT FIELD OF INVENTION relates to a fluorescent tube light for use in particular with but not limited to operating theatres, medical and veterinary surgeries and other diagnostic applications.
  • Operating theatre lights suffer from a number of disadvantages as the light sources produce heat and tend to cast shadows.
  • Such light sources are usually large structures suspended over an operating table and comprise a dished-shaped structure housing a cluster of individual spot lights which may be focused to converge on a small area to provide a relatively shadowless field of concentrated light but nevertheless provide a spotlight effect.
  • an operating theatre light assembly the improvement comprising a plurality of light modules, the modules being adapted to flood an operating theatre with light well beyond the immediate operating area.
  • an operating theatre light assembly comprising six fluorescent tubes and reflectors, above an operating surface, the range of light intensities being exemplified in the following table.
  • the table shows light intensities measured from a datum point in the centre of the lens of a module by a light meter held at given distances from the datum.
  • the six fluorescent tubes providing a lower range intensities being Philips
  • Triphophor HG D 6700 Kelvin 37VV Triphophor HG D 6700 Kelvin 37VV.
  • This table has been calculated based on measurements at the 300mm datum and a reasonable approximation for the assembly being taken at half the figure at 300mm intensities as an estimation for illustrative purposes only.
  • a operating theatre light assembly comprising a cluster of light modules, each module having about six fluorescent light and associated reflectors, the lights being supplied with power via an electric ballast to limit heat output and there being air flow passage means within the module to aid in dissipation of heat within the module.
  • the light modules is rotatably mounted on a supporting frame.
  • a theatre light assembly comprising a plurality of modules arranged in a cluster and there being provided remote control dimming means enabling control of the lights other than by hand.
  • a theatre light module comprising a closed housing having an open-topped box and a light transparent cover to close the box, a tray insertable into the box before the cover is applied by clip action, the tray extending along and across a major portion of the box, the tray holding on one side thereof a ballast for lights spaced from the box and on the other side thereof a plurality of light support brackets and reflectors interposed between the light support brackets.
  • the box includes a rim having a flange forming a surround for the box, a securing ring, the transparent cover being sandwiched between the flange and the securing ring when the light module is assembled.
  • the present invention resides in a fluorescent tube operating theatre light comprising:- a sealable enclosure for the housing of one or more fluorescent light tubes; electronic components for the electrical operation of said fluorescent light tubes; said components located on one or more platforms located above and distal to anodic and cathodic ends of the fluorescent light tubes; one or more reflective surfaces in association with said fluorescent tubes whereby there is provided an air gap between a reflective surface and an adjoining fluorescent light tube; timing means to progressively record a total operating time of said fluorescent light tubes; said enclosure having one or more transparent or translucent covers for the diffusion of light from said fluorescent light tubes; and mounting means for suspending said enclosure to a fixture member, wherein in use, said lamp may be pivoted and locked into position by said mounting means.
  • a fluorescent tube operating theatre lamp comprising a plurality of sealed enclosures pivotally attached to a supporting frame; said enclosures each having one or more fluorescent light tubes; electronic components for the electrical operation of said fluorescent light tubes; said electronic components located on one or more platforms located above and distal to anodic and cathodic ends of the fluorescent light tubes; one or more reflective surfaces in association with said fluorescent tubes whereby there is provided an air gap between a reflective surface and an adjoining fluorescent light tube; one or more timing means to progressively record a total operating time of said fluorescent light tubes; said enclosures having one or more transparent or translucent covers for the diffusion of light from said fluorescent light tubes; and mounting means for suspending of the said enclosures to the said framework, wherein in use, said enclosures may be individually pivoted and locked into position by said mounting means.
  • sealable enclosure is of a pressed steel configuration however it may be made of other materials such as plastic, KevlarTM or fibreglass.
  • the enclosure is preferably rectangular in shape if housing elongated fluorescent light tubes however may be suitably circular if round type fluorescent light tubes are used.
  • the electronic components selected for the operation of the fluorescent light tubes will be of a design which produce as little heat as possible.
  • the one or more platforms from which the electronic components are located is positioned above the fluorescent light tubes and at some distance from the anodic and cathodic ends of the light tubes to minimise electrical interference as well as to maximise cooling of the electrical components.
  • the platforms may be associated with a rigid bar removably attachable to the free edges of the platform to prevent the platform from bending thereby maintaining an adequate distance above the florescent tubes to minimise heat and electrical interference and thereby locking the platform in position with respect to the enclosure.
  • the reflective surfaces are mirror finished steel or aluminium and have a suitable configuration to maximise light reflection from the fluorescent light tubes.
  • the means for locating the fluorescent tubes also incorporate means for holding the reflective surfaces whereby there is provided a gap for the passage of air between a reflective surface and an adjoining fluorescent light tube for the dissipation of heat.
  • the timing means to progressively record the operative time of the fluorescent light tubes has a digital display panel and the timing device may have an independent power source such that general power failure will not erase stored data.
  • the one or more transparent or translucent covers may be clear or opalescent acrylic or safety glass depending on the application and the intensity of illumination required.
  • the translucent or transparent covers are secured to the enclosure by sandwiching a cover between the securing ring and the flange of an enclosure and preferably a silicone based sealer in combination with screws or nuts and bolts fasteners may be used to secure the assembly.
  • the mounting means for suspending the enclosure includes a bracket attached to a carry strap.
  • the bracket having one or more arcuate slots associated with a wing nut or turn screw locking mechanism such that the bracket may be pivoted about a cental axis and locked into position by the wing nut or turn screw means along any portion of the one or more arcuate slots.
  • the fixture member is a central support member extending downwards from a roof of an operating theatre or suitably said fixture member may be attached to an upright floor standing pedestal having a offset hinged boom member connected to the mounting means.
  • the offset hinge being of a configuration that maximum closing of the hinge still allows for a space between hinged members such that accidental pinching or crushing of fingers is avoided.
  • the supporting frame for an operating theatre lamp comprising a plurality of pivotally attached separate modules is a rectangular frame attached to a ceiling of an operating theatre having downward extending arms attached to brackets with arcuate slots as hereinabove described whereby the modules may be adjustably pivoted to provide a desired field of light.
  • the separate modules may be hinged together along adjacent free edges and may be locked in position with respect of each other by means of bracket with arcuate slots associated with wing nut or turn screw locking mechanisms.
  • Figure 2 shows detail of the means of locating fluorescent tubes and reflectors of the invention
  • Figure 3 shows a detail of the method of locating the covers according to the invention
  • Figure 4 shows a cross section through an assembly showing detail of the acrylic cover sandwiched between the flange and securing ring according to the invention
  • Figure 5 shows detail of the gear tray according to the invention
  • Figure 6 shows a cross section of the enclosure and mounting means according to the invention
  • FIG. 7 shows further detail of the means of fixing and removal of the acrylic cover
  • Figure 8 shows a ceiling suspended theatre light according to the invention
  • Figure 9 shows a light mounted on a parallel track according to the invention
  • Figure 10 shows a boom mounted operating light according to the invention
  • Figure 1 1 shows an operating theatre light assembly having a plurality of individual light modules according to the invention
  • Figure 12 shows a plan view of a operating theatre light of Figure 1 1 ;
  • Figures 13a, 13b and 13c show a cross section through an assembly of detail of a seal breaking mechanism according to the invention.
  • FIG. 1 a plan view of an enclosure 1 housing fluorescent light tubes 2, 3.
  • the fluorescent light tubes 2, 3 are held in place by means of circular clips 4 which also support prism shaped reflectors 5, 6 of mirror polished steel.
  • the clear acrylic cover 7 is sandwiched between a securing ring 8 and the flange of the housing (not shown) by means of phillips head screws 9, 10.
  • a gear tray 1 1 (shown in phantom) on which are mounted electronic ballasts 12 (also shown in phantom) is located in the central portion of the enclosure 1 and at a distance from the discharge ends 2a, 3a of the fluorescent tubes 2, 3.
  • FIG. 2 shows detail of the means of locating the fluorescent tubes 1 3, 14, 15 which also provide a means of holding the reflectors 16, 1 7 by means of circular clips 18, 1 9, 20 such that there is an air gap 21 for the dissipation of heat 22 between the reflectors 16, 1 7 and an adjacent fluorescent tube, 14.
  • Figure 3 shows detail of the flange 23 of an enclosure incorporating a nut 24 welded to the flange 23 for the purposes of sandwiching the acrylic cover 25 between the flange 23 and the securing ring 26.
  • the holes 27, 28 in the acrylic cover 25 and securing ring 26, respectfully allow the passage of a machine screw or bolt (not shown) to be threaded into the nut 24.
  • Figure 4 shows a cross section through an assembled enclosure showing detail of the acrylic cover 25 sandwiched between the flange 31 of the enclosure and the securing ring 26 by means of a machine screw 29 and nut 30.
  • the nut 30 is not welded to the flange 31 .
  • Figure 5 shows a gear tray 32 on which are located the electronic components 33 for the operation of the fluorescent tubes (not shown).
  • the gear tray 32 is of a flexible sheet metal design which is fitted to the inside an enclosure 34 and located by the flanges 35 of the enclosure.
  • the gear tray 32 may be locked in position by a rigid bar 36 of U-shaped cross section which is clipped along a free edge 37 of the gear tray.
  • the bar 36 also prevents the gear tray 32 from flexing thereby maintaining an adequate distance above the fluorescent tubes (not shown) minimising any electrical interference and effect by heat.
  • Figure 6 shows a cross sectional elevation showing the enclosure 40 supported by a carry strap 41 to which is attached by a bolt 41 a to a bracket 42 having an arcuate slot 43.
  • the bracket 42 is centrally pivoted about an axial bolt 44 and lockable by a turn screw 45.
  • the electronic ballasts 46 and plug sockets 47 are shown on the gear tray 48 which in this embodiment also provides support for the circular clips 49 holding the fluorescent tubes 50 and reflectors 51.
  • the acrylic cover 52 is shown sandwiched between the flange 53 of the enclosure 40 and the securing ring 54.
  • FIG. 7 shows detail of the acrylic cover 52 sandwiched between the flange 53 and the securing ring 54.
  • Machine screw 55 threaded into a nut 53a welded to the flange, 53 are shown in this embodiment however other fastening means may by used for example phi II ips head screws or pop rivets.
  • a blind ended screw 56 threaded into the securing ring 54 for the breaking of the seal between the acrylic cover 52 and the securing ring 54.
  • a disc of steel 57 is used to distribute the force of the blind ended screw 56 in lifting the acrylic cover 52.
  • Figure 8 shows the theatre light 58 suspended from a ceiling mounted boom 59 operated by means of a hydraulic ram 60.
  • the position of the light 58 may be further varied by means of the bracket with an arcuate slot 61 and the extension of the ram 60.
  • Figure 9 shows a light 62 mounted on a parallel track 63 for use in a workshop environment.
  • Figure 10 shows a boom mounted operating theatre light 64 attached by means of a hinge 65 to a pedestal 66 having a remote control 67 with a foot operated switch 68 to operate a electric servo 69 used to elevate the boom 70.
  • the position of the light 64 may be further varied by means of the bracket with an arcuate slot 71 and the light 64 may be further rotated in the direction of the arrows 72.
  • Figure 1 1 shows the version of the operating theatre light 73 having a plurality of individual light modules 74, 75 suspended from a supporting framework 76 mounted to the ceiling 77.
  • the central light 78 provides a mounting for the other light modules 74, 75 which are pivoted by means of hinges 74a, 75a between the free edges of the light modules 74, 75 and the central light, 78.
  • Figure 12 is a plan view of the operating theatre light 73 of Figure 1 1 from above showing the electrical connections 79 to light modules 74, 75.
  • the light modules 74, 75 are shown hinged together along their free edges by means of piano type hinges 74a, 75a.
  • the central light 78 is fixed and the hinged light modules 74, 75 are positioned relative to the central light 78 by means of friction operated stays 80.
  • Figure 13a shows detail of an assembly in which the acrylic cover 81 is sandwiched between a securing ring 82 and a channel-shaped member 83 which is bonded to a fibreglass (or KevlarTM) enclosure 84.
  • the acrylic cover 81 is sandwiched between the channel-shaped member 83 which is bonded to the fibreglass enclosure 84 and the securing ring 82 by means of a machine screw 85 tightened against a nut 86 glued for installation purposes to the channel-shaped member 83.
  • Figure 1 3b shows the removal of machine screws 85 and 87 of Figure 13a.
  • the removal of machine screw 85 of Figure 1 3a results in the displacement of the nut 86 to the interior of the module.
  • Figure 1 3c shows the mechanism used to break the seal between the acrylic cover 81 , the securing ring 82 and the channel-shaped member 83 which comprises the use of a jig 88.
  • the jig 88 has a machine screw 89 which fixes the securing ring 82 and a machine bolt 90 which passes through the hole 91 in the securing ring 82 and a hole 92 in the channel-shaped member 83 originally used for the passage of the machine screw 85 shown in Figure 1 3a.
  • the machine bolt 90 is screwed into the jig 88 and applies pressure against the upper arm 83a of the channel-shaped member 83 which results in breaking the seal between the lower arm 83b of the channel-shaped member 83, the acrylic cover 81 and the securing ring 82.
  • the attached appendix is a photometry report for a preferred operating theatre light according to the present invention.
  • Lamp Aging The lamps, mounted in the luminaire, were aged in the laboratory for about 110 hours prior to commencement of testing.
  • the photometric centre of the luminaire was taken as the geometrical centre of the diffusing front surface of the luminaire.
  • the intensity values expressed in this report are quoted in candela per 1000 lamp lumens. For calculations using this data the appropriate ballast factor and manufacturer's rated lumens of the chosen luminaire components must be taken into account. Note that the use of other lamp / ballast combinations than those used for this test report may give different results.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention porte sur un éclairage à tubes fluorescents comprenant un ou plusieurs modules lumineux fermés munis d'une couverture (7) transparente ou translucide, chacun des modules comprenant plusieurs tubes fluorescents (2,3) et réflecteurs (5, 6) associés à un plateau (11) s'insérant dans le module lumineux et servant à monter les composants électroniques (12) nécessaires au fonctionnement des tubes et se trouvant en aval des extrémités des tubes fluorescents pour réduire les interférences électriques et empêcher l'échauffement des composants. Le moyen de positionnement (4) des tubes comporte également un moyen de fixation (4) des réflecteurs laissant entre un réflecteur et le tube voisin un espace permettant la dissipation de la chaleur. L'invention comporte également une horloge enregistrant progressivement le temps total de fonctionnement des tubes, ainsi qu'une monture pour suspendre les modules lumineux à une armature de manière à pouvoir positionner l'éclairage afin d'obtenir le champ d'éclairage souhaité.
PCT/AU1997/000622 1996-09-20 1997-09-22 Eclairage de salles operatoires a tubes fluorescents Ceased WO1998012469A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU41927/97A AU4192797A (en) 1996-09-20 1997-09-22 Fluorescent tube theatre light

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO2457 1996-09-20
AUPO2457A AUPO245796A0 (en) 1996-09-20 1996-09-20 FLuorescent tube theatre light

Publications (1)

Publication Number Publication Date
WO1998012469A1 true WO1998012469A1 (fr) 1998-03-26

Family

ID=3796768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000622 Ceased WO1998012469A1 (fr) 1996-09-20 1997-09-22 Eclairage de salles operatoires a tubes fluorescents

Country Status (2)

Country Link
AU (1) AUPO245796A0 (fr)
WO (1) WO1998012469A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173851A1 (fr) * 2014-05-14 2015-11-19 シンクロア株式会社 Lampe scialytique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519426A1 (de) * 1974-12-02 1976-08-12 Yamada Shadowless Lamp Co Beleuchtungsvorrichtung fuer ein krankenhaus
DE2532946A1 (de) * 1975-07-23 1977-01-27 Original Hanau Quarzlampen Operationsleuchte
DE2831857A1 (de) * 1978-07-20 1980-02-14 Original Hanau Heraeus Gmbh Operationsleuchte
US4519021A (en) * 1982-04-28 1985-05-21 Oram John A Operating theatre table light
DE3341142A1 (de) * 1983-11-14 1985-05-23 Gerd Dr. 7100 Heilbronn Fallschüssel Zahnarzt-arbeitsplatzleuchte
DE3408891A1 (de) * 1984-03-10 1985-09-12 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Kanalartiges leuchtensystem
US5128848A (en) * 1989-03-31 1992-07-07 W.C. Heraeus Gmbh Operating light
US5375049A (en) * 1991-12-21 1994-12-20 Heraeus Instruments Gmbh Surgery lamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519426A1 (de) * 1974-12-02 1976-08-12 Yamada Shadowless Lamp Co Beleuchtungsvorrichtung fuer ein krankenhaus
DE2532946A1 (de) * 1975-07-23 1977-01-27 Original Hanau Quarzlampen Operationsleuchte
DE2831857A1 (de) * 1978-07-20 1980-02-14 Original Hanau Heraeus Gmbh Operationsleuchte
US4519021A (en) * 1982-04-28 1985-05-21 Oram John A Operating theatre table light
DE3341142A1 (de) * 1983-11-14 1985-05-23 Gerd Dr. 7100 Heilbronn Fallschüssel Zahnarzt-arbeitsplatzleuchte
DE3408891A1 (de) * 1984-03-10 1985-09-12 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Kanalartiges leuchtensystem
US5128848A (en) * 1989-03-31 1992-07-07 W.C. Heraeus Gmbh Operating light
US5375049A (en) * 1991-12-21 1994-12-20 Heraeus Instruments Gmbh Surgery lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173851A1 (fr) * 2014-05-14 2015-11-19 シンクロア株式会社 Lampe scialytique
JPWO2015173851A1 (ja) * 2014-05-14 2017-04-20 シンクロア株式会社 無影灯

Also Published As

Publication number Publication date
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