EP0468287B1 - Operating lamp - Google Patents
Operating lamp Download PDFInfo
- Publication number
- EP0468287B1 EP0468287B1 EP91111526A EP91111526A EP0468287B1 EP 0468287 B1 EP0468287 B1 EP 0468287B1 EP 91111526 A EP91111526 A EP 91111526A EP 91111526 A EP91111526 A EP 91111526A EP 0468287 B1 EP0468287 B1 EP 0468287B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- main
- auxiliary
- accordance
- operating theatre
- 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
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- 239000012141 concentrate Substances 0.000 claims 1
- 206010052428 Wound Diseases 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 208000002847 Surgical Wound Diseases 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Images
Classifications
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- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
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- 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
- F21V7/0025—Combination of two or more reflectors for a single light source
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- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/06—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out ultraviolet radiation
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- 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
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- 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
- Y10S362/00—Illumination
- Y10S362/804—Surgical or dental spotlight
Definitions
- the invention relates to an operating light according to the preamble of claim 1 (as known from US-A-2 088 024).
- the light source can consist of one or more lamps.
- the illumination should take place in such a way that, despite the manipulations between the lamp and the operating field carried out by the surgeon and his assistants, formation of a drop shadow is largely avoided.
- various surgical lighting systems have become known in which the drop shadow is formed by diverging and overlapping light from large reflectors, lens systems and Combinations of several individual reflectors is largely prevented.
- a ring reflector in the form of a hollow mirror with a comparatively large diameter can be provided, in the center of which the light source is located.
- the relevant reflector design directs the light obliquely from above and from all sides onto the operating area in order to form an illuminated operating field there.
- this arrangement of the light bundle has the disadvantage that, in the case of comparatively deep depressions in the patient's body that extend more or less vertically downwards from the operating field, the obliquely incident light no longer reaches the bottom of the depression or just the deepest points of the depression, where an operation is to be performed is no longer fully illuminated.
- the aim of the invention is therefore to provide an operating light of the type mentioned at the outset, with which, on the one hand, the previously known operating lights have their own largely shadow-free illumination of the operating field, but with which comparatively deep and narrow surgical wounds can nevertheless be well illuminated without this requires additional light sources.
- both partial areas of the main or auxiliary reflector are combined to form a uniform and preferably circular ring.
- the idea of the invention is therefore to incorporate a further auxiliary reflector in a known surgical light with a reflector ring of comparatively large diameter such that it is possible to switch from strongly to weakly converging light at the surgical field and vice versa without loss of light.
- the surgeon receives the right light for every surgical discipline (e.g. with large wounds in the plane and narrow deep wounds).
- the auxiliary reflector which can also be referred to as a deep light reflector, in particular shades that part of the main reflector which generates the light which has converged particularly strongly toward the operating field when entering the useful light bundle. This effect is achieved in particular by the training according to claim 5.
- a coaxial relative displacement of the auxiliary and main reflector according to claim 7 is particularly preferred.
- a practical implementation for the adjustment of the auxiliary reflector relative to the main reflector is characterized by claim 8.
- a further advantageous embodiment is characterized by claim 10.
- the size of the light field is variable and the distance can be focused.
- Claim 11 characterizes an embodiment with which a particularly effective superposition of several light beams in the operating field is achieved.
- a light source 14 is arranged in the center of an operating room lamp, which emits the light emanating from it in the form of an annular, diverging light beam 16.
- a cylindrical filter 19 is provided concentrically with the light source 14 and the main beam direction 20 of the lamp, which filter is intended to prevent ultra-violet and, in particular, infrared radiation, so that the operating field 11 is not overheated.
- the filter 19 can also be designed so that it converts ultra-violet radiation into visible light.
- the main reflector 13 can be composed of a plurality of concentric individual ring reflectors of different diameters, for example also polygonal, each individual ring reflector having such a curvature (in the vertical sectional plane of FIG. 1) that each of these individual ring reflectors covers the entire operating field 11 illuminates, as is illustrated in FIG. 1 with five beams.
- the different curvature of the individual ring reflectors is not shown in FIGS. 1 and 2 for reasons of simplification.
- the reflectors 13a, 13b, which are spaced relatively far from the light source 14, ensure that the illuminated operating field 11 is formed by light beams converging to the axis 20 from different directions.
- the useful light bundle 16 emanating from the light source 14 is reflected downward on the main reflector 13 in such a way that a main light bundle 12 which tapers conically from top to bottom is obtained so that the diameter of the operating field is such that the entire area is visible to the operator the area to be viewed is evenly illuminated.
- an auxiliary reflector 15 is provided within the circular main reflector 13 concentrically to the light source 14 and to the axis 20, which in the simplest case consists of two diametrically opposed hollow-gel auxiliary sections 15a, 15b exists, which, however, like the main part areas 13a, 13b, are advantageously combined to form a uniform circular ring.
- the outer diameter of the concave mirror-like auxiliary reflector 15 corresponds approximately to the inner diameter of the main reflector 13.
- the auxiliary reflector 15 has on its outer periphery nuts 17 fastened to it with vertical threaded holes which are penetrated by threaded rods 18 which in turn on the main reflector 13 or a frame holding it are rotatably but axially fixed.
- auxiliary reflector 15 While the auxiliary reflector 15 is in the inactive position according to FIG. 1 with its upper edge directly below the useful light beam 16, it can be moved upwards by rotating the threaded rods 18 coaxially to the main reflector 13 into the position shown in FIG. 2, where it is in the position shown in FIG lower part, preferably located approximately in the lower half of the light beam 16. In this way, the lower regions of the useful light beam are prevented from reaching the lower part of the main reflector 13. Instead, this part of the useful light beam is reflected downwards in the direction of the operating field 11 at a substantially smaller distance from the light source 14 or the axis 20 and at the same time is concentrated in the manner required for the desired illumination.
- auxiliary reflector 15 Since the auxiliary reflector 15 is closer to the main beam axis 20 as the main reflector 13, it generates an inner auxiliary light bundle 19 directed towards the operating field 11, which is analogous to the main light bundle 12 and tapers downwards, but has a significantly smaller cone angle than the main light bundle 12. In other words, the rays of the auxiliary light bundle 19 strike the operation field 11 more steeply and can thus penetrate deeper into the wound 21, so that the central region 22 within the wound 21 is still fully illuminated.
- the outer region of the main light beam 12 is practically folded inwards, the pivot point being in the region of the center of the operating field 11.
- the measures according to the invention change the average convergence of the light beam striking the operating field 11, so that the surgeon can adapt it to different operating problems.
- the reflector surfaces of the reflectors 13, 15 can be formed from abutting single ring surfaces of such curvature that each of these individual ring surfaces illuminates the entire operating field.
- the reflectors expediently have a common focal point.
- the common light source can preferably be a halogen or be a gas charge lamp.
- the surgeon and his / her auxiliary personnel can be protected from glare by a suitably arranged blind ring.
- the luminous efficacy of the surgical light can be increased by a suitably arranged counter reflector.
- the auxiliary or deep light reflector 15 is partially transparent, light can be directed to the operating field 11 proportionately via the lower part of the outer main reflector 13 and the auxiliary reflector. As a result, the convergence angle width of the incident light is significantly increased.
- a double arrow in FIG. 2 also indicates that by moving the light source 14, the size of the operating field 11 can be varied and the distance can be made focusable.
- the signal for adjusting the auxiliary reflector 15 can optionally be generated automatically by an ultra-sound sensor.
Description
Die Erfindung betrifft eine Operationsleuchte nach dem Oberbegriff des Patentanspruchs 1 (wie aus US-A-2 088 024 bekannt). Die Lichtquelle kann aus einer oder mehreren Lampen bestehen.The invention relates to an operating light according to the preamble of claim 1 (as known from US-A-2 088 024). The light source can consist of one or more lamps.
Bei einer medizinischen Operation ist es notwendig, den Operationsbereich optimal auszuleuchten. Die Ausleuchtung soll dabei so erfolgen, daß trotz der vom Operateur und seinen Hilfskräften vorgenommenen Manipulationen zwischen Leuchte und Operationsfeld eine Schlagschattenbildung weitgehend vermieden wird. Um dies zu erreichen, sind verschiedene Operationsleuchtensysteme bekanntgeworden, bei denen die Schlagschattenbildung durch divergierendes und überlagerndes Licht aus Großreflektoren, Linsensystem sowie Kombinationen von mehreren Einzelreflektoren weitgehend verhindert wird. Insbesondere kann ein hohlspiegelförmig ausgebildeter Ringreflektor mit vergleichsweise großem Durchmesser vorgesehen werden, in dessen Zentrum sich die Lichtquelle befindet. Das von der Lichtquelle nach allen Seiten ausgehende Licht wird aufgrund dieser Anordnung erst in einem vergleichsweise grossen Abstand von der Lichtquelle zum Operationsbereich umgelenkt, so daß es als ein stark konvergierendes konusähnliches Lichtbündel auf den Operationsbereich auftrifft und dort ein Lichtfeld von definierter Ausdehnung erzeugt, das im folgenden als Operationsfeld bezeichnet wird, weil sich in diesem Feld die Operationswunde befinden sollte. Mit anderen Worten wird durch die betreffende Reflektorausbildung das Licht schräg von oben und von allen Seiten auf den Operationsbereich gelenkt, um dort ein beleuchtetes Operationsfeld zu bilden.In the case of a medical operation, it is necessary to optimally illuminate the operating area. The illumination should take place in such a way that, despite the manipulations between the lamp and the operating field carried out by the surgeon and his assistants, formation of a drop shadow is largely avoided. In order to achieve this, various surgical lighting systems have become known in which the drop shadow is formed by diverging and overlapping light from large reflectors, lens systems and Combinations of several individual reflectors is largely prevented. In particular, a ring reflector in the form of a hollow mirror with a comparatively large diameter can be provided, in the center of which the light source is located. Due to this arrangement, the light emanating from the light source on all sides is only deflected at a comparatively large distance from the light source to the operating area, so that it strikes the operating area as a strongly converging cone-like light beam and generates a light field of a defined extent there, which in the hereinafter referred to as the surgical field, because the surgical wound should be located in this field. In other words, the relevant reflector design directs the light obliquely from above and from all sides onto the operating area in order to form an illuminated operating field there.
Diese Anordnung des Lichtbündels hat jedoch den Nachteil, daß bei vergleichsweise tiefen und sich vom Operationsfeld mehr oder weniger senkrecht nach unten erstreckenden Vertiefungen im Körper des Patienten das schräg auftreffende Licht nicht mehr bis zum Boden der Vertiefung gelangt bzw. gerade die tiefsten Stellen der Vertiefung, wo ein Operationsvorgang vorgenommen werden soll, nicht mehr vollständig ausleuchtet.However, this arrangement of the light bundle has the disadvantage that, in the case of comparatively deep depressions in the patient's body that extend more or less vertically downwards from the operating field, the obliquely incident light no longer reaches the bottom of the depression or just the deepest points of the depression, where an operation is to be performed is no longer fully illuminated.
Das Ziel der Erfindung besteht somit darin, eine Operationsleuchte der eingangs genannten Gattung zu schaffen, mit der einerseits die den vorbekannten Operationsleuchten eigene weitgehend schlagschattenfreie Ausleuchtung des Operationsfeldes erzielt wird, mit der aber gleichwohl auch vergleichweise tiefe und enge Operationswunden gut ausgeleuchtet werden können, ohne daß hierzu zusätzliche Lichtquellen erforderlich sind.The aim of the invention is therefore to provide an operating light of the type mentioned at the outset, with which, on the one hand, the previously known operating lights have their own largely shadow-free illumination of the operating field, but with which comparatively deep and narrow surgical wounds can nevertheless be well illuminated without this requires additional light sources.
Zur Lösung dieser Aufgabe sind die Merkmale des kennzeichnenden Teils des Patentsanspruchs 1 vorgesehen. Vorteilhafte Weiterbildungen dieses Erfindungsgedankens sind in den Ansprüchen 2 und 3 definiert.To achieve this object, the features of the characterizing part of patent claim 1 are provided. Advantageous developments of this inventive concept are defined in claims 2 and 3.
Bevorzugt ist es, wenn gemäß Anspruch 4 beide Teilbereiche von Haupt- bzw. Hilfsreflektor zu einem einheitlichen und vorzugsweise kreisförmigen Ring zusammengefaßt sind.It is preferred if, according to claim 4, both partial areas of the main or auxiliary reflector are combined to form a uniform and preferably circular ring.
Der Erfindungsgedanke besteht also darin, in einer an sich bekannten Operationsleuchte mit Reflektorring von vergleichsweise großem Durchmesser einen weiteren Hilfsreflektor so einzubringen, daß ohne Lichtverlust von stark auf schwach konvergierendes Licht am Operationsfeld umgeschaltet werden kann und umgekehrt. Auf diese Weise erhält der Chirurg für jede Operationsdisziplin (z.B. bei großflächigen Wunden in der Ebene und engen tiefen Wunden) wahlweise das richtige Licht. Der auch als Tiefenlichtreflektor zu bezeichnende Hilfsreflektor schattet beim Einfahren in das Nutzlichtbündel insbesondere denjenigen Teil des Hauptreflektors ab, der das besonders stark zum Operationsfeld hin konvergierte Licht erzeugt. Diese Wirkung wird insbesondere durch die Ausbildung nach Anspruch 5 erzielt.The idea of the invention is therefore to incorporate a further auxiliary reflector in a known surgical light with a reflector ring of comparatively large diameter such that it is possible to switch from strongly to weakly converging light at the surgical field and vice versa without loss of light. In this way, the surgeon receives the right light for every surgical discipline (e.g. with large wounds in the plane and narrow deep wounds). The auxiliary reflector, which can also be referred to as a deep light reflector, in particular shades that part of the main reflector which generates the light which has converged particularly strongly toward the operating field when entering the useful light bundle. This effect is achieved in particular by the training according to claim 5.
Der geringste Verschiebeweg für den Hilfsreflektor wird bei der Ausführungsform nach Anspruch 6 erzielt.The smallest displacement path for the auxiliary reflector is achieved in the embodiment according to claim 6.
Besonders bevorzugt ist eine koaxiale Relativverschiebung von Hilfs- und Hauptreflektor nach Anspruch 7.A coaxial relative displacement of the auxiliary and main reflector according to claim 7 is particularly preferred.
Eine praktische Verwirklichung für die Verstellung des Hilfsreflektors relativ zum Hauptreflektor ist durch Anspruch 8 gekennzeichnet.A practical implementation for the adjustment of the auxiliary reflector relative to the main reflector is characterized by claim 8.
Eine weitere Optimierung kann durch das Ausführungsbeispiel nach Anspruch 9 geschaffen werden. Auf diese Weise kann Licht von sämtlichen Bereichen des Haupt- und Hilfsreflektors zum Operationsfeld gelangen, wenn auch teilweise in etwas abgeschwächter Form, was aber bei verschiedenen Operationsproblemen dennoch sinnvoll ist.A further optimization can be done by the embodiment be created according to claim 9. In this way, light can reach the operating field from all areas of the main and auxiliary reflectors, albeit in a somewhat weakened form, which is nevertheless useful for various operational problems.
Eine weitere vorteilhafte Ausführungsform ist durch Anspruch 10 gekennzeichnet. Durch Verschieben der Lichtquelle ist die Größe des Lichtfeldes variabel und der Abstand fokussierbar.A further advantageous embodiment is characterized by claim 10. By moving the light source, the size of the light field is variable and the distance can be focused.
Anspruch 11 kennzeichnet eine Ausführungsform, mit der eine besonders wirkungsvolle Überlagerung mehrerer Lichtbündel im Operationsfeld erzielt wird.
Die Erfindung wird im folgenden beispielsweise anhand der Zeichnung beschrieben; in dieser zeigt
- Figur 1
- eine schematische geschnittene Seitenansicht einer erfindungsgemäßen Operationsleuchte bei in der unwirksamen Position befindlichem Hilfsreflektor und
- Figur 2
- eine entsprechende Ansicht der gleichen Operationsleuchte bei in seiner wirksamen Position befindlichen Hilfsreflektor.
- Figure 1
- is a schematic sectional side view of an operating light according to the invention with the auxiliary reflector and in the inactive position
- Figure 2
- a corresponding view of the same operating light with the auxiliary reflector in its active position.
Nach Figur 1 ist im Zentrum einer Operationsleuchte eine Lichtquelle 14 angeordnet, die das von ihr ausgehende Licht in Form eines ringförmigen divergierenden Nutzlichtbündels 16 aussendet. Konzentrisch zur Lichtquelle 14 und der Hauptstrahlrichtung 20 der Leuchte ist ein kreiszylindrisches Filter 19 vorgesehen, welches ultra-violette und insbesondere infrarote Strahlung abhalten soll, damit das Operationsfeld 11 nicht zu stark erhitzt wird. Das Filter 19 kann auch so ausgeführt sein, daß es ultra-violette Strahlung in sichtbares Licht konvertiert.According to FIG. 1, a
In einem deutlich größeren radialen Abstand als das Filter 19 von der Lichtquelle 14 sind zwei diametral gegenüberliegende Hohlspiegel-Hauptteilbereiche 13a, 13b angeordnet, die sich kreisförmig um die Achse 20 herum erstrecken und zu einem einheitlichen kreisringförmigen Hauptreflektor 13 zusammengefaßt sind. Der Hauptreflektor 13 kann aus mehreren konzentrischen Einzel-Ringreflektoren unterschiedlichen Durchmessers, zum Beispiel auch polygonartig zusammengesetzt sein, wobei jeder Einzel-Ringreflektor eine solche Krümmung (in der vertikalen Schnittebene der Fig. 1) aufweist, daß jeder dieser Einzel-Ringrefklektoren das gesamte Operationsfeld 11 ausleuchtet, wie das in Fig. 1 anhand von fünf Strahlen veranschaulicht ist. Die unterschiedliche Krümmung der Einzel-Ringreflektoren ist aus Vereinfachungsgründen in Fig. 1 und 2 nicht dargestellt. Durch die relativ weit von der Lichtquelle 14 beabstandeten Reflektoren 13a, 13b wird erreicht, daß das beleuchtete Operationsfeld 11 von zur Achse 20 konvergenten Lichtstrahlen aus unterschiedlichen Richtungen gebildet wird.At a significantly greater radial distance than the
Nach Figur 1 wird das von der Lichtquelle 14 ausgehende Nutzlichtbündel 16 an dem Hauptreflektor 13 so nach unten reflektiert, daß ein im wesentlichen von oben nach unten sich konisch verjüngendes Hauptlichtbündel 12 erzielt wird, daß am Operationsfeld einen solchen Durchmesser aufweist, daß der gesamte vom Operateur einzusehende Bereich gleichmäßig ausgeleuchtet wird.According to FIG. 1, the
Es kann nun vorkommen, daß sich im Operationsfeld 11 eine relativ enge und tiefe Ausnehmung 21, beispielsweise eine enge und tiefe Wunde befindet, so daß die einzelnen Lichtstrahlen des stark konvengierenden Hauptlichtbündels 12 beispielsweise nicht mehr einen zentralen Bereich 22 in der Nähe des Bodens der Wunde 21 erreichen.It can now happen that in the
Um auch diesen, für die Operation möglicherweise besonders wichtigen Bereich voll ausleuchten zu können, ist erfindungsgemäß innerhalb des kreisringförmigen Hauptreflektors 13 konzentrisch zur Lichtquelle 14 und zur Achse 20 ein Hilfsreflektor 15 vorgesehen, der im einfachsten Fall aus zwei diametral gegenüberliegenden Hohlspielgel-Hilfsteilbereichen 15a, 15b besteht, die jedoch ebenso wie die Hauptteilbereiche 13a, 13b zweckmäßigerweise zu einem einheitlichen kreisförmigen Ring zusammengefaßt sind. Der Außendurchmesser des hohlspiegelartigen Hilfsreflektors 15 entspricht in etwa dem Innendurchmesser des Hauptreflektors 13. Der Hilfsreflektor 15 weist an seinem Außenumfang an ihm befestigte Muttern 17 mit vertikalen Gewindebohrungen auf, die von Gewindestangen 18 durchgriffen sind, welche ihrerseits am Hauptreflektor 13 bzw. einen ihn haltenden Gestell drehbar aber axial unverschiebbar befestigt sind.In order to be able to fully illuminate this area, which may be particularly important for the operation, an
Während sich der Hilfsreflektor 15 in der unwirksamen Position nach Figur 1 mit seinem oberen Rand unmittelbar unterhalb des Nutzlichtbündels 16 befindet, kann er durch Verdrehen der Gewindestangen 18 koaxial zum Hauptreflektor 13 nach oben in die aus Figur 2 ersichtliche Position verschoben werden, wo er sich im unteren Teil und zwar vorzugsweise etwa in der unteren Hälfte des Nutzlichtbündels 16 befindet. Auf diese Weise werden die unteren Bereiche des Nutzlichtbündels daran gehindert, den unteren Teil des Hauptreflektors 13 zu erreichen. Statt dessen wird dieser Teil des Nutzlichtbündels bereits in einem wesentlich geringeren Abstand von der Lichtquelle 14 bzw. der Achse 20 nach unten in Richtung des Operationsfeldes 11 reflektiert und gleichzeitig in der für die gewünschte Ausleuchtung erforderlichen Weise konzentriert.While the
Da sich der Hilfsreflektor 15 näher an der Hauptstrahlachse 20 als der Hauptreflektor 13 befindet, wird von ihm ein zum Operationsfeld 11 hin gerichtetes, inneres Hilfslichtbündel 19 erzeugt, welches analog dem Hauptlichtbündel 12 sich konisch nach unten verjüngend ausgebildet ist, jedoch einen deutlich geringeren Konuswinkel als das Hauptlichtbündel 12 aufweist. Mit anderen Worten treffen die Strahlen des Hilfslichtbündels 19 steiler auf das Operationsfeld 11 auf und können somit tiefer in die Wunde 21 eindringen, so daß auch der zentrale Bereich 22 innerhalb der Wunde 21 noch voll ausgeleuchtet wird.Since the
Durch die erfindungsgemäße Anordnung und Verschiebung des Hilfsreflektors 15 wird also praktisch der äußere Bereich des Hauptlichtbündels 12 nach innen geklappt, wobei sich der Drehpunkt im Bereich der Mitte des Operationsfeldes 11 befindet. Im wesentlichen wird also durch die erfindungsgemäßen Maßnahmen die mittlere Konvergenz des auf das Operationsfeld 11 auftreffende Lichtbündels verändert, so daß vom Operateur eine Anpassung an verschiedene Operationsprobleme vorgenommen werden kann.Due to the arrangement and displacement of the
Die Reflektoroberflächen der Reflektoren 13, 15 können erfindungsgemäß aus aneinanderstoßenden Einzelringflächen von derartiger Krümmung gebildet sein, daß jede dieser Einzelringflächen das gesamte Operationsfeld ausleuchtet. Zweckmäßigerweise haben die Reflektoren einen gemeinsamen Brennpunkt.According to the invention, the reflector surfaces of the
Vorzugsweise wird für mehrere Reflektoren nur eine gemeinsame Lichtquelle verwendet. Es wäre aber auch denkbar, für den Hilfsreflektor 15 in der Position nach Figur 1 eine eigene Lichtquelle vorzusehen, die dann unterhalb der Hauptlichtquelle 14 zu liegen käme und wahlweise zugeschaltet wird.Preferably only one common light source is used for several reflectors. However, it would also be conceivable to provide a separate light source for the
Die gemeinsame Lichtquelle kann vorzugsweise eine Halogen- oder Gasenladungslampe sein.The common light source can preferably be a halogen or be a gas charge lamp.
Durch einen geeignet angeordneten Blendring kann der Operateur und sein Hilfspersonal vor Blendung geschützt werden.The surgeon and his / her auxiliary personnel can be protected from glare by a suitably arranged blind ring.
Die Lichtausbeute der Operationsleuchte kann durch einen geeignet angeordneten Gegenreflektor erhöht werden.The luminous efficacy of the surgical light can be increased by a suitably arranged counter reflector.
Sofern nach einer weiteren Ausführungsform der Hilfs- oder Tiefenlichtreflektor 15 teildurchlässig ist, kann Licht anteilig über den unteren Teil des äußeren Hauptreflektors 13 und dem Hilfsreflektor zum Operationsfeld 11 gelenkt werden. Hierdurch wird die Konvergenzwinkelbreite des aufteffenden Lichtes wesentlich erhöht.If, according to a further embodiment, the auxiliary or
Durch einen Doppelpfeil in Figur 2 ist auch noch angedeutet, daß durch Verschieben der Lichtquelle 14 die Größe des Operationsfeldes 11 variabel und der Abstand fokussierbar gemacht werden kann.A double arrow in FIG. 2 also indicates that by moving the
Obwohl grundsätzlich mehr als zwei Reflektoren erfindungsgemäß ineinander geschachtelt werden können, ist doch die Anordnung von nur zwei ineinander geschachtelten Reflektoren (Haupt- und Hilfsreflektor) vorzuziehen, weil hierdurch ein besonders einfacher mechanischer Aufbau erzielt wird und auch die Betätigung einfach ist.Although, in principle, more than two reflectors can be nested in one another according to the invention, the arrangement of only two nested reflectors (main and auxiliary reflector) is preferable because this results in a particularly simple mechanical structure and also makes actuation simple.
Das Signal zur Verstellung des Hilfsreflektors 15 kann ggf. automatisch durch einen Ultra-Schallsensor erzeugt werden.The signal for adjusting the
Weiter ist es möglich, daß das Erfordernis einer Verstellung des Hilfsreflektors dem Operateur durch ein Meßsystem vorgeschlagen wird.It is also possible that the requirement for an adjustment of the auxiliary reflector is suggested to the operator by a measuring system.
Mit 23 ist eine untere durchsichtige Leuchtenabdeckung bezeichnet.With 23 a lower transparent lamp cover is designated.
Claims (11)
- Operating theatre lamp comprising a main reflector (13) which illuminates the site (11) of the operation with a convergent main light beam (12), the main reflector having at least two diametrically oppositely disposed concave mirror main regions (13a, 13b) which deflect light transmitted from a light source (14) arranged between them towards the site of the operation (11) and concentrate it there, characterised in that at least one auxiliary reflector (15) is provided and has at least two diametrically oppositely disposed concave mirror auxiliary regions (15a, 15b) which are disposed closer to the light source (14) than the main regions (13a, 13b), with the auxiliary reflector normally being disposed outside of the operational light beam (16) leading to the main reflector (13), but being at least partially introducable into the operational light beam (16) leading to the main reflector (14) and in this state so reflecting and concentrating the incident light from the light source (14) onto the auxiliary regions (15a, 15b) disposed on diametrically opposite sides of the light source that an auxiliary light beam (19) impinges onto the site of the operation (11) at a steeper angle than the main light beam (12).
- Operating theatre lamp in accordance with claim 1, characterised in that one or both part regions (13a, 13b; 15a, 15b) are of partly circular shape, with the axis of the circle coinciding with the main beam axis.
- Operating theatre lamp in accordance with claim 2, characterised in that the part regions (13a, 13b; 15a, 15b) are concentric to one another and to the light source (14).
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that one or both part regions (13a, 13b; 15a, 15b) are combined to form a unitary preferably circular or polygonal ring.
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that the auxiliary reflector (15) is introducable into the largest diameter area of the main reflector (13).
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that the auxiliary reflector (13) is located in its inactive position directly beneath the operational light beam which is incident on the main reflector (13) and can be introduced from this position into the lower part of the operational light beam (16).
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that the auxiliary reflector (15) is coaxially displaceable relative to the main reflector (13).
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that nuts (17) with axially threaded bores are secured to the auxiliary reflector (15) with threaded bars (18) which are rotatable journalled relative to the main reflector (13) engaging in the nuts.
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that the auxiliary reflector (15) is partly transmitting.
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that the centrally arranged light source (12) is axially adjustably arranged.
- Operating theatre lamp in accordance with one of the preceding claims, characterised in that the reflector surface of the main and/or auxiliary reflectors (13, 15) is formed by abutting individual ring surfaces of a curvature in a vertical sectional plane such that each of these individual ring surfaces illuminates the entire site of the operation (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4023408 | 1990-07-23 | ||
| DE4023408A DE4023408A1 (en) | 1990-07-23 | 1990-07-23 | OPERATION LIGHT |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0468287A2 EP0468287A2 (en) | 1992-01-29 |
| EP0468287A3 EP0468287A3 (en) | 1992-04-01 |
| EP0468287B1 true EP0468287B1 (en) | 1994-05-18 |
Family
ID=6410868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91111526A Expired - Lifetime EP0468287B1 (en) | 1990-07-23 | 1991-07-10 | Operating lamp |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5178452A (en) |
| EP (1) | EP0468287B1 (en) |
| DE (2) | DE4023408A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0840059A2 (en) | 1996-10-29 | 1998-05-06 | Gebr. Berchtold GmbH & Co. | Operating lamp |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4140325C2 (en) * | 1991-12-06 | 2003-07-31 | Delma Elektro Med App | surgical light |
| AU730794C (en) * | 1995-03-01 | 2001-11-15 | Eppi Lighting, Inc. | Dual reflector lighting system |
| US5582479A (en) * | 1995-03-01 | 1996-12-10 | Eppi Lighting, Inc. | Dual reflector high bay lighting system |
| US5803593A (en) * | 1996-10-24 | 1998-09-08 | The Regents, University Of California | Reflector system for a lighting fixture |
| US6273590B1 (en) * | 1998-07-30 | 2001-08-14 | Stingray Lighting, Inc. | Dual reflector lighting system |
| FR2767182B1 (en) * | 1997-08-11 | 1999-09-03 | Valeo Vision | VARIABLE BEAM PROJECTOR, ESPECIALLY FOR VEHICLES |
| US6176597B1 (en) | 1998-03-27 | 2001-01-23 | Hill-Rom, Inc. | Reflector for surgical light apparatus |
| US6402351B1 (en) | 1998-03-27 | 2002-06-11 | Hill-Rom Services, Inc., | Controls for a surgical light apparatus |
| US6217197B1 (en) | 1998-07-31 | 2001-04-17 | Michael J. Siminovitch | Reflector system for a lighting fixture |
| DE19838627A1 (en) | 1998-08-26 | 2000-03-09 | Heraeus Med Gmbh | Luminaire to form a low-shadow lighting field |
| DE10151978A1 (en) * | 2001-10-22 | 2003-04-30 | Berchtold Holding Gmbh | surgical light |
| US6698908B2 (en) | 2002-03-29 | 2004-03-02 | Lexalite International Corporation | Lighting fixture optical assembly including relector/refractor and collar for enhanced directional illumination control |
| DE10252283B3 (en) * | 2002-11-06 | 2004-06-24 | Hans-Werner Friedrich Briese | reflector assembly |
| US6874914B2 (en) * | 2002-12-04 | 2005-04-05 | Sage Technology, Llc | Adjustable lighting system |
| JP2004259541A (en) | 2003-02-25 | 2004-09-16 | Cateye Co Ltd | Lighting fixture |
| JP2005166371A (en) * | 2003-12-01 | 2005-06-23 | Ichikoh Ind Ltd | Lighting fixture for vehicle |
| DE102007042646A1 (en) * | 2007-09-10 | 2009-03-12 | Trilux Gmbh & Co. Kg | LED surgical light |
| TW201017051A (en) * | 2008-10-17 | 2010-05-01 | Ind Tech Res Inst | Illumination system |
| DE102012201706B4 (en) * | 2011-02-04 | 2014-03-27 | Trilux Gmbh & Co. Kg | LED surgical light with monoreflector |
| US20130329451A1 (en) * | 2012-06-11 | 2013-12-12 | Falcon Lin | Surgical light with led light guiding and focusing structure and method |
| US10036535B2 (en) * | 2014-11-03 | 2018-07-31 | Ledvance Llc | Illumination device with adjustable curved reflector portions |
| US11402079B1 (en) * | 2020-10-29 | 2022-08-02 | Chien Luen Industries Co., Ltd., Inc. | Landscape lamps with adjustable light modifiers |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1411810A (en) * | 1919-11-07 | 1922-04-04 | Morris I Schamberg | Projecting lamp |
| FR655266A (en) * | 1927-10-10 | 1929-04-17 | Lamp without drop shadow | |
| US2088024A (en) * | 1935-09-11 | 1937-07-27 | Baber Emil | Operating room lamp |
| DE673069C (en) * | 1936-05-09 | 1939-03-15 | Dr Henri Paschoud | Lighting body for simultaneous or alternating lighting and irradiation of a field, in particular an operating field, from above |
| CH187816A (en) * | 1936-05-09 | 1936-11-30 | Henri Dr Paschoud | Lamp for illumination and irradiation from above an operating field. |
| DE849832C (en) * | 1950-08-26 | 1952-09-18 | Hueper & Schmidt K G | Shadow-free reflector, especially for surgical purposes |
| GB825638A (en) * | 1955-05-17 | 1959-12-16 | Anciens Ets Barbier | Improvements relating to lighting apparatus |
| FR1335044A (en) * | 1962-07-06 | 1963-08-16 | Anciens Ets Barbier | Light fixture without drop shadow |
| US3191023A (en) * | 1963-05-17 | 1965-06-22 | Corning Glass Works | Lighting device for dental and surgical procedures |
| DE6605763U (en) * | 1967-08-03 | 1970-08-13 | Hueper & Schmidt Kg | SHADOW-FREE SURGICAL LIGHT |
| FR96628E (en) * | 1968-09-16 | 1973-09-07 | Tech Nouvelles S E T N Soc Et | Device for lifting and lowering a loading and unloading platform. |
| US3835342A (en) * | 1973-05-21 | 1974-09-10 | Ervin J | Radiant energy collector or reflector |
| US4037096A (en) * | 1974-08-09 | 1977-07-19 | American Sterilizer Company | Illuminator apparatus using optical reflective methods |
| US4135232A (en) * | 1976-06-30 | 1979-01-16 | Hoffmeister-Leuchten K. G. | Spot-light reflector structure |
| US4207607A (en) * | 1977-06-17 | 1980-06-10 | Koehler Manufacturing Company | Luminaire apparatus for reflecting radiant energy and methods of controlling characteristics of reflected radiant energy |
| US4422135A (en) * | 1979-10-11 | 1983-12-20 | Kollmorgen Technologies Corporation | Annular illuminator |
| DE3012340C2 (en) * | 1980-03-29 | 1984-06-20 | W.C. Heraeus Gmbh, 6450 Hanau | Operating light |
| JPS58155701U (en) * | 1982-04-14 | 1983-10-18 | 小糸工業株式会社 | Reflector for surgical light |
| DE3432745C2 (en) * | 1984-09-06 | 1986-08-14 | W.C. Heraeus Gmbh, 6450 Hanau | Operating light for uniform illumination of an operating field without cast shadows |
| US4617619A (en) * | 1985-10-02 | 1986-10-14 | American Sterilizer Company | Reflector for multiple source lighting fixture |
| US4729065A (en) * | 1987-04-24 | 1988-03-01 | Arriflex Corporation | Photography light |
| DE3723009A1 (en) * | 1987-07-11 | 1989-01-19 | Heraeus Gmbh W C | OPERATION LIGHT |
-
1990
- 1990-07-23 DE DE4023408A patent/DE4023408A1/en not_active Withdrawn
-
1991
- 1991-07-10 DE DE59101652T patent/DE59101652D1/en not_active Expired - Fee Related
- 1991-07-10 EP EP91111526A patent/EP0468287B1/en not_active Expired - Lifetime
- 1991-07-23 US US07/733,765 patent/US5178452A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0840059A2 (en) | 1996-10-29 | 1998-05-06 | Gebr. Berchtold GmbH & Co. | Operating lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59101652D1 (en) | 1994-06-23 |
| EP0468287A3 (en) | 1992-04-01 |
| EP0468287A2 (en) | 1992-01-29 |
| DE4023408A1 (en) | 1992-01-30 |
| US5178452A (en) | 1993-01-12 |
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