EP1741974A2 - Lampe chirurgicale - Google Patents

Lampe chirurgicale Download PDF

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Publication number
EP1741974A2
EP1741974A2 EP06013830A EP06013830A EP1741974A2 EP 1741974 A2 EP1741974 A2 EP 1741974A2 EP 06013830 A EP06013830 A EP 06013830A EP 06013830 A EP06013830 A EP 06013830A EP 1741974 A2 EP1741974 A2 EP 1741974A2
Authority
EP
European Patent Office
Prior art keywords
led
light
operating
optical axis
lamp
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.)
Granted
Application number
EP06013830A
Other languages
German (de)
English (en)
Other versions
EP1741974B1 (fr
EP1741974A3 (fr
Inventor
Ingolf Diez
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.)
INGOLF DIEZ SIMEON MEDIZINTECH
Ingolf Diez Simeon Medizintechnik
Original Assignee
INGOLF DIEZ SIMEON MEDIZINTECH
Ingolf Diez Simeon Medizintechnik
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 INGOLF DIEZ SIMEON MEDIZINTECH, Ingolf Diez Simeon Medizintechnik filed Critical INGOLF DIEZ SIMEON MEDIZINTECH
Priority to EP06013830A priority Critical patent/EP1741974B1/fr
Publication of EP1741974A2 publication Critical patent/EP1741974A2/fr
Publication of EP1741974A3 publication Critical patent/EP1741974A3/fr
Application granted granted Critical
Publication of EP1741974B1 publication Critical patent/EP1741974B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/08—Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • 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
    • 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
    • F21W2131/202—Lighting for medical use for dentistry
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a surgical light having at least one reflector element and at least one LED (light emitting diode) as a light source whose main emission forms an angle between 60 and 120 ° with an optical axis of the lamp. Furthermore, the invention relates to a light source for a surgical light.
  • An operating light with reflector elements and an LED, the main emission forms an angle of about 90 ° with an optical axis of the lamp, is from the US 2003/0227774 A1 known.
  • surgical light here stands for a lamp that is suitable for medical applications.
  • the surgical light according to the invention should therefore be particularly suitable for illuminating a surgical field and, for example, for illuminating an oral cavity (dental light).
  • the prior art knows surgical lights, in particular with gas discharge lamps.
  • the use of an LED as a light source has a number of advantages:
  • the operation of the lamp is very stable and low maintenance with a long service life.
  • the compact design allows a good beam guidance.
  • the radiation characteristic of the LED (beam lobe) can be optimally utilized in cooperation with reflectors.
  • a particular advantage of the use of LEDs lies in their thermal properties. On the one hand, it is possible to keep very low LED temperature increases on and in the luminaire housing due to the waste heat of the light sources and on the other hand, the heating in the operating field due to the infrared radiation components (which are low here) are kept very low.
  • the invention has for its object to provide a surgical light, which has a high life with high efficiency, little heat radiates, and in a compact design allows optimal illumination of a surgical field.
  • the optimal illumination of an operating field should include that an operator has an optimal view of the surgical procedure.
  • the invention also aims to provide a light source for such a surgical light.
  • the invention provides an operating light having at least one reflector element and at least one LED as a light source whose main emission forms an angle ( ⁇ ) between 60 ° and 120 ° with an optical axis of the lamp, wherein in the beam path between the LED and the reflector element, a luminescent layer is arranged, which luminesces in the color temperature range of 4000K to 4600K.
  • the invention also includes a light source for an operating light, in particular a surgical light of the aforementioned type, in which at least one LED is used, in the emitted radiation, a luminescent layer is used, in the color temperature range of 4000K to 4600K, in particular 4200K to 4500K and in particular luminescent at a color temperature of about 4300K.
  • a light source for an operating light in particular a surgical light of the aforementioned type, in which at least one LED is used, in the emitted radiation, a luminescent layer is used, in the color temperature range of 4000K to 4600K, in particular 4200K to 4500K and in particular luminescent at a color temperature of about 4300K.
  • the term "luminescence” is a generic term for in particular phosphorescence and fluorescence.
  • the luminescent layer thus receives the emitted radiation of an LED on the one side and then in turn emits radiation in a wavelength range which is different from the irradiated wavelength range.
  • the invention is based on the finding that an optimal illumination of a surgical field in a color temperature range of 4000K to 4600K is given.
  • the color temperature is 5000K with a permitted deviation plus / minus 200K. Also, there is proposed a color rendering index Ra of 90 or more. In the following, only one will be here mainly described operating light described, so a surgical light that radiates in the color temperature range of 4000K to 4600K.
  • the color temperature is 4300K with a permitted deviation of plus / minus 300K, preferably plus / minus 200K, and more preferably plus / minus 100K.
  • the inventive arrangement provides a color rendering index Ra of at least 90, preferably greater than 90. Moreover, an Im / W value of at least 60 lumens / watt is achieved, preferably even higher.
  • the invention makes it possible to work with a single LED, without the need to mix the radiation of different LEDs, such as in the EP 1 568 936 A1 , With a luminescent layer, a shift in the color temperature in the direction of requirements for dental lighting is also possible in a simple manner.
  • a preferred embodiment of the invention provides that a plurality of reflector elements are arranged along a closed circumferential curve.
  • the curve may be, for example, a circular path.
  • a further preferred embodiment of the invention provides that the reflector elements are substantially elliptical in a section also containing the optical axis of the lamp.
  • LEDs with a club-shaped radiation characteristic wherein the main radiation direction (ie the longitudinal axis of symmetry about which the lobe is rotationally symmetric) is perpendicular to the optical axis of the luminaire.
  • a simple embodiment of the invention provides that three reflector elements are arranged around the optical axis of the lamp around. It is also possible to combine two or more than three reflector elements into a substantially complete reflector which fills in 360 ° around the optical axis of the luminaire.
  • a further preferred embodiment of the invention provides that for adjusting the light field, in particular for focusing, the LEDs are slidably disposed within the lamp, preferably parallel to the optical axis of the reflector.
  • the LEDs are preferably arranged near or on the optical axis of the reflector.
  • the invention also teaches a system comprising a plurality of the operating lights described above, which may for example be arranged in a matrix-like manner in one field, or preferably also on a circumferential ring next to one another.
  • the light field can be adjusted in the operating field by pivoting or tilting the individual lights by the user in a simple manner.
  • the reduced power consumption in particular means that the lamp radiates less heat.
  • a high heat radiation has the particular disadvantage that it leads to high temperatures in the head field of the surgeon. It may also come to unwanted air currents due to the temperature gradient resulting from the heat radiation.
  • the invention enables a particularly flat design of the entire light and thereby occupies little space in the operating room.
  • the luminaire can be built in such a way that a climatic ceiling (laminar flow ceiling) in the operating room is not significantly disturbed by the operating light.
  • a particular embodiment of the invention provides the combination of the operating light (s) with a camera, which is used for a navigation system.
  • Cameras with navigation systems are known as such to the person skilled in the art.
  • the camera automatically always has the optimum position when the operating light is adjusted, and the overall arrangement is also space-saving and clear.
  • a sensor is integrated with the operating light or a system of a plurality of operating lights, which determines whether in an area in which usually a surgeon's head can appear (ie in the area between a surgical light and the surgical field, closer to the surgical light), an object (for example, the head of an operator) is located.
  • an object for example, the head of an operator
  • Such shading of the surgical field by the surgeon himself is obviously highly undesirable because the lighting conditions in the surgical field change.
  • a system of several operating lights can then be controlled so that those lights that are not shaded, are operated with slightly higher power to ensure a total temporally uniform at the surgical site lighting.
  • each individual operating light (or it can be summarized in each case some operating lights for this purpose) be equipped with a sensor of the type mentioned in order to determine whether this surgical light (or the combined group of operating lights) is shaded in the manner described.
  • sensors for example, known IR sensors or the like come into consideration, as they are known in particular by photographic cameras, etc.
  • LEDs make it possible, in particular in a simple manner when the described shadowing occurs, to adjust the luminosity of individual luminaires.
  • FIG. 1 shows an exemplary embodiment of an operating light 10 in the form of a section through the optical axis 18 of the luminaire.
  • Figure 2 shows a view of the surgical light from the front.
  • the surgical lamp 10 includes three reflector elements 12, 14, 16, which join together substantially seamlessly to a completely closed reflector.
  • the luminaire When using three reflector elements 12, 14, 16, the luminaire has 3-fold rotational symmetry about its optical axis 18.
  • Each of the reflector elements 12, 14, 16 has an LED 20a, 20b or 20c.
  • the LEDs 20a, 20b, 20c are mounted on a base 22. Details of the electrical supply of the LEDs are not shown in detail.
  • An electronic control (not shown) makes it possible to selectively control the individual LEDs.
  • the LEDs 20a, 20b, 20c emit white light in the illustrated embodiment.
  • the individual LEDs are detachably fastened to the base 22 with screws 24.
  • a common base plate 22 supports the reflectors 12, 14, 16, which are fastened by screws 28 to the base plate 26.
  • the main emission direction 34 of the LED 20 is perpendicular to the optical axis 18 of the luminaire.
  • the reflector element is elliptical in section according to FIG. 1, so that the radiation which is reflected by the reflector in accordance with the main emission direction 34 leaves the luminaire parallel to the optical axis 18.
  • the screw 32 can be rotated in order to move the base 22 with the LEDs 20a, 20b, 20c (see FIG. 2) axially.
  • the three reflector elements 12, 14, 15 are housed in a housing 36 in this embodiment.
  • the LEDs 20a, 20b, 20c are each arranged in a plane containing the optical axis 18 and also the respective main emission directions 34a, 34b, 34c of the individual LEDs.
  • these three planes are perpendicular to the plane of the drawing in the direction of the illustrated main emission directions 34a, 34b, 34c and thus share the respective reflector element 12, 14, 16 so that it can be reflected mirror-symmetrically at this level.
  • the individual reflector elements are, as I said, in the section of Figure 1 elliptical.
  • FIG. 3 shows a ring 40 to which ten lights 10a, 10b, 10c, 10d, 10e, 10f, 10g and 10h are regularly mounted.
  • This system of operating lights 10a,..., 10h enables optimal illumination of an operating field, the individual operating lights corresponding to the exemplary embodiments according to FIGS. 1 and 2.
  • the individual luminaires can be optionally and independently adjusted so that their optical axes are optimally aligned to the surgical field.
  • a camera for a navigation system used for the surgical procedure may be integrated (not shown).
  • one or more sensors can be integrated in the ring 40, which determine whether there is an obstacle in the area between the system of the lamps 10a,..., 10h and the surgical field, which leads to shading in the surgical field, for example the head of an operator.
  • sensors are known in principle from the field of photographic cameras in principle. If the sensor system detects such an obstacle and locates it sufficiently, then an electronic control which selectively activates the individual luminaires 10a,..., 10h can drive unshaded luminaires with somewhat more power than those luminaires which more or less shade be used to ensure the greatest possible uniform illumination at the surgical site.
  • Figures 4, 5 and 6 show details of the arrangement of an LED and a luminescent layer.
  • FIG 4 shows a section along the line AA of Figure 5.
  • a white emitting LED 20 is located in a ceramic housing 42. Into the ceramic housing 42 is embedded a luminescent layer 46. The electrical contacts 50 are used to power the LED 20.
  • a septumleitblech 48 with four arranged at the corners of a rectangle, outwardly facing arms is used for cooling.
EP06013830A 2005-07-05 2006-07-04 Lampe chirurgicale Active EP1741974B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06013830A EP1741974B1 (fr) 2005-07-05 2006-07-04 Lampe chirurgicale

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05014542 2005-07-05
EP06013830A EP1741974B1 (fr) 2005-07-05 2006-07-04 Lampe chirurgicale

Publications (3)

Publication Number Publication Date
EP1741974A2 true EP1741974A2 (fr) 2007-01-10
EP1741974A3 EP1741974A3 (fr) 2009-01-14
EP1741974B1 EP1741974B1 (fr) 2010-04-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06013830A Active EP1741974B1 (fr) 2005-07-05 2006-07-04 Lampe chirurgicale

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Country Link
EP (1) EP1741974B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITLU20080015A1 (it) * 2008-09-11 2010-03-12 Palagi Andrea Dispositivo per l'illuminazione a led con soluzione ottica e dissipativa ad alta efficienza
EP2348244A3 (fr) * 2010-01-26 2013-03-27 Panasonic Corporation Source lumineuse et appareil d'éclairage l'utilisant
WO2014101994A1 (fr) * 2012-12-24 2014-07-03 Dräger Medical GmbH Dispositif d'éclairage pour l'éclairage d'une zone à éclairer
EP2927560B1 (fr) 2014-04-04 2016-05-04 Maquet SAS Appareil d'éclairage opératoire à source laser déportée

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8459852B2 (en) 2007-10-05 2013-06-11 Dental Equipment, Llc LED-based dental exam lamp
ES2443957T3 (es) 2011-11-18 2014-02-21 Frowein Ezh Gmbh Lámpara de operaciones
DE102013104157A1 (de) 2013-04-24 2014-10-30 Frowein Ezh Gmbh Abstrahleinheit und Operationsleuchte mit Abstrahleinheit
DE102017100347A1 (de) * 2017-01-10 2018-07-12 Frowein Ezh Gmbh Abstrahleinheit für eine Operations- und/oder Untersuchungsleuchte

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030227774A1 (en) 2002-06-10 2003-12-11 Martin Paul S. Axial LED source
EP1471304A2 (fr) 2003-04-25 2004-10-27 Stanley Electric Co., Ltd. Lampe de véhicule

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030227774A1 (en) 2002-06-10 2003-12-11 Martin Paul S. Axial LED source
EP1471304A2 (fr) 2003-04-25 2004-10-27 Stanley Electric Co., Ltd. Lampe de véhicule

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITLU20080015A1 (it) * 2008-09-11 2010-03-12 Palagi Andrea Dispositivo per l'illuminazione a led con soluzione ottica e dissipativa ad alta efficienza
WO2010028861A1 (fr) * 2008-09-11 2010-03-18 Andrea Palagi Dispositif d’éclairage à del doté d'une solution de dissipation optique et thermique à haut rendement
EP2348244A3 (fr) * 2010-01-26 2013-03-27 Panasonic Corporation Source lumineuse et appareil d'éclairage l'utilisant
WO2014101994A1 (fr) * 2012-12-24 2014-07-03 Dräger Medical GmbH Dispositif d'éclairage pour l'éclairage d'une zone à éclairer
CN104854398A (zh) * 2012-12-24 2015-08-19 德尔格医疗有限责任公司 用于对照明区域进行照明的照明设备
US9869451B2 (en) 2012-12-24 2018-01-16 Drägerwerk AG & Co. KGaA Illumination device for illuminating an illumination area
EP2927560B1 (fr) 2014-04-04 2016-05-04 Maquet SAS Appareil d'éclairage opératoire à source laser déportée

Also Published As

Publication number Publication date
EP1741974B1 (fr) 2010-04-28
EP1741974A3 (fr) 2009-01-14

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