EP1568936A1 - Surgical lamp and method of illumination of an operating theatre - Google Patents

Surgical lamp and method of illumination of an operating theatre Download PDF

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Publication number
EP1568936A1
EP1568936A1 EP04004602A EP04004602A EP1568936A1 EP 1568936 A1 EP1568936 A1 EP 1568936A1 EP 04004602 A EP04004602 A EP 04004602A EP 04004602 A EP04004602 A EP 04004602A EP 1568936 A1 EP1568936 A1 EP 1568936A1
Authority
EP
European Patent Office
Prior art keywords
light
leds
characterized
dimming
operating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04004602A
Other languages
German (de)
French (fr)
Inventor
Christian Bartenbach
Berthold Leibinger
Rudolf Marka
Kamran Tahbazian
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.)
Trumpf Kreuzer Medizin Systeme GmbH and Co KG
Original Assignee
Trumpf Kreuzer Medizin Systeme GmbH and Co KG
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 Trumpf Kreuzer Medizin Systeme GmbH and Co KG filed Critical Trumpf Kreuzer Medizin Systeme GmbH and Co KG
Priority to EP04004602A priority Critical patent/EP1568936A1/en
Priority claimed from EP04018642A external-priority patent/EP1568938B1/en
Publication of EP1568936A1 publication Critical patent/EP1568936A1/en
Application status is Withdrawn legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20Lighting for medical use
    • F21W2131/205Lighting for medical use for operating theatres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The lighting unit consists of a number of modules [6a] having a hexagonal shape that fit together to form a dish shaped unit that focuses light onto a central region. Each module has a number of light emitting diodes, LED, as lighting elements [10] each with a lens [11] that are coupled to a regulator to control dimming.

Description

The invention relates to a surgical lamp and a method for Illumination of an operation site.

For example, by DE 198 38 627 A1 is a surgical light known.

The human eye is used to daylight. The sight is on the Adapted daylight. In daylight, the human eye detects most exact contours, differs in the most differentiated colors and detects movements most clearly.

Therefore, it is desirable to create conditions in the operating room, which are comparable to the daylight. The surgeon needs a intense and daylight-like light. In addition, the Operation site light is not reflected, but this is absorbed.

Every color impression is due to the spectral distribution of the light certainly. A spectral distribution can be assigned a color temperature become. For example, daylight has a color temperature of 5,600 Kelvin. In the literature it is known that according to the Kruithoffs Comfort curve the color temperature with the illuminance must be adjusted to a pleasant lighting situation create. The light in the operating room becomes white with a light Color temperature of about 4,500 Kelvin at high illuminance levels (> 100 000 lux) recommended.

Operating lights with LEDs as bulbs have so far unsuitable color temperature and color reproduction. Therefore, at Operating lights the light of the LEDs by appropriate measures be modified.

From DE 100 31 303 A1 a lighting device is known become, with the light-emitting diodes (LEDs) with respect to their color be mixed. The LEDs are designed to generate certain Color temperatures individually controllable. In the document is the Application not described in operating lights.

WO 03/019072 A1 relates to a similar technical teaching.

The Applicant has set itself the task of using LEDs To allow operating lights.

This object is achieved by an operating light according to claim 1 and a method according to claim 6 solved.

The basic structure consists of white LEDs. Colored by mixing Light, which is generated by LEDs, it is possible to use a mixed light with to produce suitable photometric data for surgical ligaments. The Intensity of the luminous flux, i. the one emitted by the LEDs or the reflected light from a body of at least the colored LEDs can be infinitely varied independently of the white LEDs. These Dimming allows the adjustment of the color temperature and the Color reproduction in a wide area suitable for surgical lights. Alone by the admixture and regulation of colored, such as blue or cyan LEDs combined with white LEDs can be simple Way produces an optimal color for light operation of the light become.

Further developments of the invention are in dependent claims 2 to 5 (Operating light) and 7 to 9 (method) included.

The dimming can be achieved by mechanical and / or optical means become. A dimming can be caused by a change of the LED electric current and / or the electrical voltage can be generated. Alternatively, apertures, lenses or optical filters, which in the Beam input to be moved, a change in the luminous flux cause.

A control device in conjunction with corresponding sensors can it allow a desired color temperature and / or Color reproduction can be set and monitored and readjusted. In particular, the control device allows the surgeon to individually his needs adjusted lighting conditions in the surgical field to accomplish. Depending on the color temperature or color reproduction Highlighting of different tissue structures or Tissue features possible within the surgical site.

General further advantages:

  • The use of a plurality of individual LEDs has the advantage of improved reliability, because not all LEDs fail at the same time, but always a very good residual luminosity is guaranteed.
  • LEDs have the further advantage that LEDs can be switched on and off as desired, while conventional discharge lamps must first cool down before reclosing is possible.
  • LEDs have a longer life. LEDs can be infinitely variable in their intensity. LEDs do not emit heat radiation. LEDs have no IR / UV component and have no color change at dimming.
  • A preferred embodiment of the invention is shown schematically in the drawing and will be explained below with reference to the figures of the drawing. It shows:

    Fig. 1
    a surgical light;
    Fig. 2
    a plurality of light modules of the surgical lamp according to FIG. 1;
    Fig. 3
    the detailed structure of a light module according to FIG. 2.

    From the side view of an operating light 1 ( FIG. 1 ), the basic structure known per se can be seen. The operating light 1 comprises a lamp body 2 , which has in its interior in Fig. 1 not visible lighting means. The lamp body 2 is pivotally mounted on a stationary bracket on a ceiling or a wall of a building or a mobile unit via a not completely shown in Fig. 1 pivot arm. The swivel arm is composed of several interconnected via joints elements. A fixedly connected to the operating light 1 element 4 of the pivot arm is indicated in Fig. 1 only. Therefore, the operation lamp 1 can be three-dimensionally moved and pivoted in X, Y, Z direction. A mounted on the lamp body 2 handle 3 allows the positioning of the surgical light at any position on an operating table. The handle 3 is detachably attached to the underside 5 of the operating light.

    Light exits at the bottom 5 to illuminate the surgical site.

    FIG. 2 shows that individual light modules 6a to 6g are joined to one another almost without borders as a light source. Borderless in the sense of the invention means that the transitions between the individual light modules 6a to 6g have no significant influence on the optical properties, in particular on the light emission in the direction of the surgical site. The generated light is perceived as uniform despite the light source composed of a plurality of light modules 6a to 6g. Each light module 6a to 6g in turn comprises a plurality of individual LEDs, for example 30 to 50. This results in photometric advantages similar to large mirror lights such as a theoretically optimal freedom from shadow by large-scale light emission. Each light module 6a to 6g can even illuminate a complete surgical site. Light generated by the light modules 6a to 6g is indicated by dashed lines by the light beams 7 , so that a luminous field 8 is formed. The light field 8 is the area illuminated on the operating table. The light modules 6a to 6g can be assembled by any combination with other light modules to different overall modules as a light source. This changes the luminous field size, the illuminance and the shape of the luminous field 8.

    The individual light modules, for example the light module 6a shown in FIG. 3 , each consist of a housing 9 with mechanical and / or electrical or electronic connecting elements or connectors to adjacent light modules 6b to 6g. The shape of the light modules 6a to 6g is designed so that they can be arranged on a spherical surface with a typical radius 1000 mm without gaps. To achieve this, the light modules 6a to 6g are formed as hexagons. In compound form, a kind of honeycomb structure or facet structure results. The surface of the light modules 6a to 6g facing the surgical site does not necessarily have to be flat, but may be slightly concave in order to simulate the curvature of the spherical surface better. The optical axis of each light module 6a to 6g generally points to the focal point of the spherical surface.

    Different light field shapes can be created by juxtaposing modulated angle modules. For this purpose, intermediate elements can also be used. In each light module 6a to 6g, a plurality of, approximately 30 to 50 LEDs are distributed uniformly, of which only three are shown in FIG. 3 and designated by reference numerals 10a to 10c . The shadowing is optimized by a flat light emission. For this purpose, each of the almost point-emitting LEDs are assigned suitable optical elements, for example lenses 11a to 11c. (indicated by dashed lines are, for example, the LED light beams 12a to 12c ).

    The shape of the lens elements 11a to 11c is designed to be the Fill light module 6a as far as possible to the edge. The lens elements 11a to 11c can also have a scattering structure to equalize the Have light field. The underside 5 of the light modules can by a be covered transparent pane.

    The individual light modules 6a to 6g together form a light source with a color temperature of about 4,500 K and a color rendering index Ra> 93 in order to achieve a natural color representation, for example of the tissue to be operated. Therefore, not only LEDs are used which generate white light, but also LEDs 10a to 10c which generate colored light. In Fig. 3, those LEDs for generating white light are not denoted by reference numerals. The white LEDs are designed analogous to the colored ones. By admixing colored light components such as cyan and blue, a collapse in the spectrum is partially compensated, as in an arrangement with pure white LEDs. Furthermore, it is possible to produce color mixtures that improve the visual performance of the surgeon. With constant brightness of the white LEDs, the color temperature and color rendering of the mixed light generated by the total module, consisting of all individual light modules 6a to 6g (total light source), can be variably adjusted by exclusively stepless dimming of the intensity of the colored LEDs. The luminous flux intensity of the colored LEDs 10a to 10c can be changed continuously. It would also be desirable to keep the overall illuminance constant by means of coordinated intensity control of all LEDs. The LEDs 10a to 10c are connected via power lines 13a to 13c and 14 to a control device 15 , which allows an electrical dimming of the luminous flux of the LEDs. The electrical dimming of the colored LEDs 10a to 10c causes a change in the color temperature and / or the color reproduction, which is advantageous for the illumination of the surgical site. In this case, it is conceivable that the surgeon uses the adjustability in such a way that he mixes colored and white light according to his needs in order to emphasize special tissue types or tissue changes in a visually differentiated manner. The surgeon can better recognize individual tissue types or tissue changes.

    It becomes a basic setting of a color temperature of 4,500 K predetermined, which automatically when switching on the operating light is produced. Others depending on the application of the surgical light desired Color temperature can be controlled by using a control panel or a keyboard Control device to be set by the surgeon. The necessary Setting parameters can be stored in a memory of the control device become. Furthermore, it is conceivable that the surgeon further himself additionally save selected settings and these settings as well can change later.

    LIST OF REFERENCE NUMBERS

    1
    surgical light
    2
    luminaire body
    3
    handle
    4
    element
    5
    bottom
    6a
    light module
    6b
    light module
    6c
    light module
    6d
    light module
    6e
    light module
    6f
    light module
    6g
    light module
    7
    beam of light
    8th
    light field
    9
    casing
    10a
    LED
    10b
    LED
    10c
    LED
    11a
    lens
    11b
    lens
    11c
    lens
    12a
    beam of light
    12b
    beam of light
    12c
    beam of light
    13a
    power line
    13b
    power line
    13c
    power line
    14
    power line
    15
    control device

    Claims (9)

    1. Operating light (1) with several as light source for Illumination of the surgical site suitable LEDs, of which LEDs are formed for generating white and colored light, wherein Means for dimming the luminous flux of the colored LEDs (10a to 10c) especially blue or cyan LEDs are provided.
    2. Operating light according to claim 1, characterized in that mechanical and / or optical means are provided for dimming.
    3. Operating light according to claim 1, characterized in that electrical means are provided for dimming.
    4. Operating light according to one of the preceding claims, characterized in that a control device (15) is provided for controlling and regulating the dimming.
    5. Surgical light according to one of the preceding claims, characterized in that lenses (11a to 11c) are used to create a uniform light emission and bundling of the light on the light field.
    6. Method for illuminating an operation site with a Operating light, which LEDs to produce white and colored Light, wherein the luminous flux of the colored LEDs (10a to 10c) is dimmed.
    7. A method according to claim 6, characterized in that the luminous flux of the white LEDs is kept approximately constant.
    8. A method according to claim 6, characterized in that the total illuminance remains approximately constant.
    9. A method according to claim 6, 7 or 8, characterized in that the spectral composition of the light can be adjusted depending on tissue type, tissue structure and remission course.
    EP04004602A 2004-02-28 2004-02-28 Surgical lamp and method of illumination of an operating theatre Withdrawn EP1568936A1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP04004602A EP1568936A1 (en) 2004-02-28 2004-02-28 Surgical lamp and method of illumination of an operating theatre

    Applications Claiming Priority (8)

    Application Number Priority Date Filing Date Title
    EP04004602A EP1568936A1 (en) 2004-02-28 2004-02-28 Surgical lamp and method of illumination of an operating theatre
    AT04018642T AT340963T (en) 2004-02-28 2004-08-06 Surgical light
    DE502004001595T DE502004001595D1 (en) 2004-02-28 2004-08-06 surgical light
    DE202004021854U DE202004021854U1 (en) 2004-02-28 2004-08-06 surgical light
    EP04018642A EP1568938B1 (en) 2004-02-28 2004-08-06 Surgical lamp and method of illumination of an operating theatre
    US11/067,580 US7614763B2 (en) 2004-02-28 2005-02-28 Operating table lamp
    CNB2005100524370A CN100473892C (en) 2004-02-28 2005-02-28 Surgical lamp
    JP2005054108A JP5048927B2 (en) 2004-02-28 2005-02-28 Surgery lamp

    Publications (1)

    Publication Number Publication Date
    EP1568936A1 true EP1568936A1 (en) 2005-08-31

    Family

    ID=34745936

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP04004602A Withdrawn EP1568936A1 (en) 2004-02-28 2004-02-28 Surgical lamp and method of illumination of an operating theatre

    Country Status (3)

    Country Link
    EP (1) EP1568936A1 (en)
    AT (1) AT340963T (en)
    DE (2) DE502004001595D1 (en)

    Cited By (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2007086770A1 (en) 2006-01-24 2007-08-02 Zakrytoe Aktsionernoe Obschestvo Zavod Ema Surgical light provided with a light emission control
    EP2031295A1 (en) * 2007-08-29 2009-03-04 Asetronics AG Medical, in particular dental treatment lamp
    US7614763B2 (en) 2004-02-28 2009-11-10 Trumpf Medizin Systeme Gmbh + Co. Kg Operating table lamp
    DE102009053795A1 (en) 2009-11-18 2011-05-26 Dräger Medical GmbH Control device for surgical lights
    US8134309B2 (en) 2005-11-14 2012-03-13 Trumpf Medizin Systeme Gmbh + Co. Kg Lamp power tabulation
    DE102010050300A1 (en) 2010-11-03 2012-05-03 Dräger Medical GmbH Operating light and a method for illuminating a surgical table by means of a surgical light
    DE202011102479U1 (en) * 2011-06-27 2012-06-28 BÄ*RO GmbH & Co. KG Intelligent led
    US8300906B2 (en) 2007-05-15 2012-10-30 Trumpf Medizin Systeme Gmbh + Co. Kg Operating system having an operating lamp and a camera
    EP2469158A3 (en) * 2010-12-23 2012-12-19 Kaltenbach & Voigt GmbH Dental treatment light
    CN104214545A (en) * 2013-05-31 2014-12-17 深圳市海洋王照明工程有限公司 Lamp
    DE102006040393B4 (en) 2006-08-29 2018-11-22 Dr. Mach Gmbh & Co. Kg LED surgical light
    US10345238B2 (en) 2013-05-03 2019-07-09 Signify Holding B.V. Light source with adapted spectal output

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4196460A (en) * 1978-07-14 1980-04-01 Sybron Corporation Major surgical light
    DE10034594A1 (en) * 2000-07-14 2002-01-31 Sirona Dental Systems Gmbh Dental treatment lamp has LEDs producing first part of light cone giving first light field fully within second light field produced by second part of light cone
    US6495964B1 (en) * 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
    WO2003019072A1 (en) * 2001-08-23 2003-03-06 Yukiyasu Okumura Color temperature-regulable led light
    US20030165055A1 (en) * 2002-03-04 2003-09-04 Berchtold Holding Gmbh, A German Corporation Surgical light

    Family Cites Families (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19838627A1 (en) 1998-08-26 2000-03-09 Heraeus Med Gmbh Luminaire to form a low-shadow lighting field

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4196460A (en) * 1978-07-14 1980-04-01 Sybron Corporation Major surgical light
    US6495964B1 (en) * 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
    DE10034594A1 (en) * 2000-07-14 2002-01-31 Sirona Dental Systems Gmbh Dental treatment lamp has LEDs producing first part of light cone giving first light field fully within second light field produced by second part of light cone
    WO2003019072A1 (en) * 2001-08-23 2003-03-06 Yukiyasu Okumura Color temperature-regulable led light
    US20030165055A1 (en) * 2002-03-04 2003-09-04 Berchtold Holding Gmbh, A German Corporation Surgical light

    Cited By (18)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7614763B2 (en) 2004-02-28 2009-11-10 Trumpf Medizin Systeme Gmbh + Co. Kg Operating table lamp
    US8134309B2 (en) 2005-11-14 2012-03-13 Trumpf Medizin Systeme Gmbh + Co. Kg Lamp power tabulation
    EP1938768A1 (en) * 2006-01-24 2008-07-02 Zakrytoe Aktsionernoe Obschestvo Zavod Ema Surgical light provided with a light emission control
    EP1938768A4 (en) * 2006-01-24 2008-12-17 Zakrytoe Aktsionernoe Obschest Surgical light provided with a light emission control
    WO2007086770A1 (en) 2006-01-24 2007-08-02 Zakrytoe Aktsionernoe Obschestvo Zavod Ema Surgical light provided with a light emission control
    DE102006040393B4 (en) 2006-08-29 2018-11-22 Dr. Mach Gmbh & Co. Kg LED surgical light
    US8300906B2 (en) 2007-05-15 2012-10-30 Trumpf Medizin Systeme Gmbh + Co. Kg Operating system having an operating lamp and a camera
    EP2031295A1 (en) * 2007-08-29 2009-03-04 Asetronics AG Medical, in particular dental treatment lamp
    DE102009053795A1 (en) 2009-11-18 2011-05-26 Dräger Medical GmbH Control device for surgical lights
    US8408735B2 (en) 2009-11-18 2013-04-02 Dräger Medical GmbH Actuating device for operating lamps
    DE102010050300A1 (en) 2010-11-03 2012-05-03 Dräger Medical GmbH Operating light and a method for illuminating a surgical table by means of a surgical light
    DE102010050300B4 (en) * 2010-11-03 2014-05-22 Dräger Medical GmbH Operating light and a method for illuminating a surgical table by means of a surgical light
    US8783885B2 (en) 2010-11-03 2014-07-22 Dräger Medical GmbH Operating light and a process for lighting an operating table by means of an operating light
    EP2469158A3 (en) * 2010-12-23 2012-12-19 Kaltenbach & Voigt GmbH Dental treatment light
    DE202011102479U1 (en) * 2011-06-27 2012-06-28 BÄ*RO GmbH & Co. KG Intelligent led
    US10345238B2 (en) 2013-05-03 2019-07-09 Signify Holding B.V. Light source with adapted spectal output
    CN104214545A (en) * 2013-05-31 2014-12-17 深圳市海洋王照明工程有限公司 Lamp
    CN104214545B (en) * 2013-05-31 2016-07-06 深圳市海洋王照明工程有限公司 A kind of light fixture

    Also Published As

    Publication number Publication date
    DE202004021854U1 (en) 2011-10-24
    AT340963T (en) 2006-10-15
    DE502004001595D1 (en) 2006-11-09

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