Medical lighting device

Abstract

The present disclosure relates to a medical lighting device. One embodiment of the medical lighting device (10) comprises: at least one light source (12) arranged and configured to emit light; and at least one lens (14) arranged and configured to at least partially receive the emitted light and to at least partially emit it in the direction of a surgical area to be illuminated. The at least one light source (12) is arranged and configured to be movable relative to the at least one lens (14) in a direction transverse to a beam path of the light emitted by the at least one light source (10).

Description

[0001] The present invention relates to a medical lighting device.

[0002] In medical technology, the illumination of an operating field / surgical area is crucial for performing a surgical procedure. Surgical lights are typically used to illuminate an operating area during a medical operation. The surgical field in which a surgical procedure takes place must be illuminated in such a way that a surgeon can clearly see the existing tissue and move safely within the surgical field with the surgical instruments.

[0003] In prior art lighting devices for illuminating a surgical field, the corresponding device is held in a designated position to ensure correct illumination of the surface. The light field for illuminating the surgical field is moved along the surface, for example, by pivoting the entire lighting device. This is complex and requires a lot of space. A relatively large space is required to accommodate the pivoting movement of the lighting device.

[0004] There is a need for an improved lighting device. In particular, the lighting device should enable a surgical field to be illuminated in a simple manner.

[0005] According to a first aspect, a medical lighting device is proposed. The medical lighting device has at least one light source. The at least one light source is arranged and designed to emit light. The medical lighting device has at least one lens. The at least one lens is arranged and designed to at least partially receive the emitted light and to at least partially emit it in the direction of a surgical area to be illuminated. The at least one light source is arranged and designed to be movable relative to the at least one lens in a direction transverse to a beam path of the light emitted by the at least one light source.

[0006] The medical lighting device can be part of a surgical light or be designed as a surgical light. The medical lighting device can be part of at least one light module of the surgical light. In other words, a surgical light can have one or more medical lighting devices according to the first aspect. For example, a surgical light can have one or more light modules, which in turn have one or more medical lighting devices according to the first aspect.

[0007] The operating area can in principle be any area that is visible to the surgeon. The operating area can be the part, area or section of an operating room in which the operation is performed. For example, the operating area can be one or part of an operating table or the operating area can include the operating table. The operating area can be an area of the operating room in which the operation is performed. The medical lighting device or an operating light comprising the medical lighting device can, for example, illuminate the entire operating area or can also illuminate only a part of the operating area, e.g. in a focused manner. Purely as an example, the operating area can be a covering for the patient used during the operation, e.g. a drape.The surgical area may further include a location where the surgery is performed.

[0008] By means of the medical lighting device, at least one light field can be generated and projected onto at least one area of the surgical area / operative field to be illuminated. The at least one light field can be one end of a beam path of the light emitted by the light source. The beam path of the light can originate at the at least one light source.

[0009] The light field can be flexibly adjusted by a relative movement of the at least one movable light source relative to the at least one lens. For example, the light field can be changed by the relative movement.

[0010] The at least one lens can be arranged along the beam path between the at least one light source and the surgical field to be illuminated / illuminated. By a relative movement of the at least one light source relative to the at least one lens, the at least one illuminated field can be moved along the surgical field. Additionally or alternatively, the at least one illuminated field can be enlarged or reduced. The at least one lens can be arranged parallel to the at least one light source, in particular a light-emitting surface of the light source. The at least one light source can be arranged and designed such that it can be displaced parallel to the at least one lens. The at least one light source can be arranged and designed such that it can be moved, in particular displaced, along the beam path and / or transversely to the beam path, in particular mechanically or electromechanically.This allows at least one light field to be moved along the surgical field to be illuminated.

[0011] The at least one light source can be arranged and designed such that it can be moved relative to the at least one lens in a direction at least almost perpendicular to the beam path of the light emitted by the at least one light source. Additionally or alternatively, the at least one light source can be arranged and designed such that it can be moved in a direction at least almost parallel to a direction of extension of the at least one lens. The direction of extension can be a direction of a longer or longest side or surface of the lens. The at least one light source can be arranged and designed such that it can be moved, in particular displaced, mechanically or electromechanically relative to the at least one lens in the direction transverse to the beam path of the light emitted by the at least one light source.

[0012] The movement, in particular the displacement, of the at least one movable / movable light source relative to the at least one lens allows the illuminated field to be moved along the surgical field. Additionally or alternatively, the movement, in particular the displacement, of the at least one movable / movable light source relative to the at least one lens allows the illuminated field to be adjusted, e.g., enlarged or reduced. This allows the illuminated field to be flexibly adjusted. With the adjusted illuminated field, a surgical area can be at least partially illuminated in a simple manner, in particular in a space-saving manner.

[0013] The at least one light source can be arranged or fastened on at least one light source plate. The at least one light source plate can be arranged and configured to be movable relative to the at least one lens in a direction transverse to the beam path of the light emitted by the at least one light source plate. An extension direction of the at least one light source plate can correspond to a direction of movement, for example a direction of displacement, of the at least one light source plate. The extension direction of the at least one light source plate can be a direction of a longer or longest side or surface of the light source plate.

[0014] A cross-section of the medical lighting device or of at least one light module of the medical lighting device can be at least nearly round, for example, circular or oval. Alternatively, the cross-section can be polygonal, for example, octagonal. The at least one light source can be arranged so as to be movable in a radial direction of the at least nearly round cross-section.

[0015] The at least one lens can be arranged, fastened or formed on at least one lens plate. The at least one lens plate can be arranged and formed fixedly or in a fixed manner relative to the at least one light source. The relative mobility / movability of the at least one light source with respect to the at least one lens can thus be achieved by a mobility / movability of the at least one light source, while the at least one lens can be fixed and thus immovable / inmobile in the medical lighting device. The at least one lens, for example the at least one lens arranged on the at least one lens plate, can be held or fixed by at least one holding plate.For example, on a first side of the at least one lens plate, a first holding plate can fix the at least one lens plate and thus the at least one lens, and on a second side of the at least one lens plate, a second holding plate can fix the at least one lens plate and thus the at least one lens.

[0016] The at least one light source may comprise a plurality of light sources or be configured as a plurality of light sources. The at least one light source may comprise at least one light-emitting diode (LED) or be configured as at least one LED. The light source may be configured as a plurality of LEDs or may comprise a plurality of LEDs.

[0017] The at least one lens may comprise at least one Fresnel lens, in particular a white Fresnel lens, or may be configured as at least one Fresnel lens, in particular as at least one white Fresnel lens. The at least one lens may comprise a plurality of lenses or may be configured as a plurality of lenses.

[0018] Each of the plurality of lenses may be formed as a Fresnel lens or may comprise a Fresnel lens.

[0019] The medical lighting device can have at least one diaphragm. The at least one diaphragm can in particular extend at least almost parallel to the beam path. In other words, the at least one diaphragm can extend at least almost perpendicular to the direction of extension of the at least one lens and / or at least almost perpendicular to the direction of movement of the at least one light source. For example, two diaphragms can be provided per light source. A first diaphragm can extend from a first end of a light source plate at least almost perpendicular to the light source plate, and a second diaphragm can extend from a second end of the light source plate at least almost perpendicular to the light source plate.

[0020] According to a second aspect, a surgical light with a medical lighting device according to the first aspect is proposed. A surgical light according to the second aspect can have one or more medical lighting devices according to the first aspect. For example, a surgical light according to the second aspect can have one or more light modules, which in turn can have one or more medical lighting devices according to the first aspect.

[0021] Although the details described above and below were described with reference to the medical lighting device according to the first aspect, these details can also be implemented in a corresponding manner in the operating room light according to the second aspect, or vice versa. Furthermore, all of the elements mentioned can be part of the operating room light, i.e., integrated into the operating room light. For example, the medical lighting device can be an operating room light or part of an operating room light.

[0022] Exemplary, specific embodiments are explained below with reference to the attached schematic figures. They show: Fig. 1a is a schematic representation of an embodiment of a medical lighting device; Fig. 1b is a schematic representation of the embodiment of the medical lighting device from Fig. 1a with a light source moved relative to a lens shown; Fig. 2a is a schematic representation of an embodiment of a medical lighting device; Fig. 2b is a schematic representation of the embodiment of the medical lighting device from Fig. 2a with light sources moved relative to the lenses shown; Fig. 3a is a schematic representation of an arrangement of several light sources in a medical lighting device; and Fig. 3b a schematic representation of several lenses in a medical lighting device.

[0023] Specific details are set forth below, but are not limited thereto, in order to provide a thorough understanding of the present disclosure. However, it will be apparent to one skilled in the art that the present disclosure may be utilized in other embodiments that may differ from the details set forth below.

[0024] Fig. 1a shows a schematic and highly simplified medical lighting device 10 according to a possible embodiment. The medical lighting device 10 is in the example from Fig. 1a as part of a surgical light. In particular, a variety of medical lighting devices can be Fig. 1a can be combined in a suitable manner to form an operating light.

[0025] The medical lighting device 10 has in the example Fig. 1a has exactly one light source 12. However, more than one light source 12 may be provided. The lens 12 is attached to a light source plate 120. The light source plate 120 has an extension direction which, in the example from Fig. 1a corresponds to a direction parallel to a horizontal. The medical lighting device 10 has in the example Fig. 1a has exactly one lens 14. However, more than one lens 14 may be provided. The lens 14 may be arranged or provided in a lens plate. The lens 14 or the lens plate with the lens 14 is held or fixed, for example, at a first end by a holding plate 160 and at a second end by another holding plate 160. In the example from Fig. 1a, two retaining plates 160 are provided as an example. However, in principle, any number of retaining plates 160 can be provided for fixing the at least one lens 14 or the lens plate with the lens 14.

[0026] The medical lighting device 10 further includes, for example, two apertures 16 as one example of one or more apertures. The apertures 16 each extend, for example, from one end of the light source plate 120 perpendicular to (the extension direction) of the light source plate 120.

[0027] The light source 12 is arranged and configured to emit light. The light source 12 forms a beginning of a beam path of the emitted light. In the example from Fig. 1a, the light source 12 emits the light largely downwards, ie the beam path runs downwards from the light source 12. The lens 14 is arranged and designed to at least partially receive the emitted light. In the example from Fig. 1a, a portion of the emitted light falls on the lens 14. A (smaller) portion of the light falls on the holding plates 160. Another portion of the emitted light falls on the apertures 16. The lens 14 emits the received light at least partially toward a surgical area to be illuminated. A light field 20 is created to illuminate the surgical area. The light field 20 can be projected / cast onto an area of a surgical field. A region of the surgical field corresponding to the light field 20 can then be illuminated / illuminated.

[0028] As in Fig. 1b, the light source 12, for example, together with the two apertures 16 and the light source plate 120, is arranged to be movable relative to the lens 14 in a direction of movement. More precisely, in the example from Fig. 1b, the light source 12 is moved, in particular shifted, by a movement, in particular displacement of the light source plate 120. The direction of movement in the example is Fig. 1a and Fig. 1b transversely to the beam path, more precisely at least almost perpendicular to the beam path and / or at least almost parallel to an extension direction of the at least one lens 14 / lens plate and / or at least almost parallel to an extension direction of the at least one light source plate 120. Due to the movement of the light source 12, in particular due to the displacement of the light source plate 120, the light incidence on the lens changes. In addition, the beam path of the light emitted by the lens 14 changes. As a result, the illuminated field 20 changes at the end of this beam path. In the example from Fig. 1b, the light field is pivoted and thus moved across the surgical field. In this way, the light field 20 can be moved along the surgical field.

[0029] Fig. 2a shows schematically and in a highly simplified manner a medical lighting device 10 according to another possible embodiment.

[0030] The medical lighting device 10 has in the example Fig. 2a two light sources 12 as an example of at least one light source 12. The medical lighting device 10 has in the example of Fig. 2a shows two lenses 14 as an example for at least one lens 14. In contrast to the example from Fig. 1a are in the example from Fig. 2a, no apertures 16 are shown, but they may also be provided there. Each light source 12 is assigned to one of the lenses 14, i.e., the light emitted by the light source 12 is at least substantially received by the assigned lens 14.

[0031] As in the example from Fig. 1a, the light sources 12 are each arranged on an associated light source plate 120 and are arranged and configured to emit light. The light sources 12 form a beginning of a beam path of the emitted light. The lenses 14 are arranged and configured to at least partially receive the emitted light of the associated light source 12. The lenses 14 emit the received light at least partially in the direction of an operating area to be illuminated. For illuminating the operating area, a light field 20 is produced, as shown in relation to the Fig. 1a and Fig. 1b. The light field 20 from Fig. 2a results from superimposing the respective beam paths from the respective lenses 14.

[0032] As in Fig. 2b, both light sources 12 are arranged to be movable, or more precisely, displaceable, relative to the lenses 14 in one direction of movement. The movement of the light sources 12, in particular their displacement, takes place in the example from Fig. 2a about the movement, in particular displacement, of the light source plates 120. The direction of movement in the example is Fig. 2a and Fig. 2b transverse to the beam path, more precisely at least almost perpendicular to the beam path and / or at least almost parallel to a direction of extension of the lenses 14. Due to the movement of the light sources 12, more precisely due to the displacement of the light source plates 120, the incidence of light on the lenses changes. In addition, the beam path of the light emitted by the lenses 14 changes. As a result, the light field 20 at the end of this beam path changes. In the example from Fig. 2b the light field is compared to the example from Fig. 2a. For example, a diameter of the illuminated field 20 is enlarged.

[0033] The movement of the light source(s) 12 in the examples from Fig. 1a to 2b can be implemented in various ways. For example, the light source(s) can be mechanically or electromechanically movable, in particular displaceable, in the direction of movement relative to the at least one lens 14.

[0034] In Fig. 3a schematically shows a possible arrangement of several light sources 12 on a medical lighting device 10, which in the example from Fig. 3a is designed as a surgical light or as a light module of a surgical light. A surgical light can have a plurality of such light modules. In Fig. 3a (also in Fig. 3b) The operating light 10 or a housing of the operating light 10, more precisely a cross-section through the operating light 10 or a housing of the operating light 10, is shown as a circular shape by way of example, but is not limited to a circular shape. For example, an oval or square shape is also conceivable.

[0035] Examples include Fig. 3a four light sources 12 are shown as an example of at least one light source 12. The operating light 10 or the light module of the operating light 10 has in the example from Fig. 3a shows a round cross-section, more precisely, by way of example, a circular cross-section. The four light sources 12 are arranged such that they are movable / movable in a radial direction of the operating light 10 or the light module of the operating light 10. For example, the light sources 12 can each be displaceable in the radial direction or be slidably mounted. In other words, the respective directions of movement of the light sources 12 run in the radial direction of the operating light or the light module of the operating light 10. Furthermore, the light sources 14, in their initial position, are each at the same distance from their respective adjacent light source 12 in the circumferential direction. In the case of the four light sources 12, this means that the light sources 14 are each spaced apart from their respective adjacent light sources 12 at an angle of 90 degrees.

[0036] In Fig. 3b shows a possible arrangement of several lenses 14 on a medical lighting device 10, which in the example from Fig. 3b is designed as an operating light or as a light module of an operating light.

[0037] Examples include Fig. 3b four lenses 14 are shown as an example of at least one lens 14.

[0038] The four lenses 14 are arranged such that they are spaced equally apart from their respective neighboring lenses 14 in the circumferential direction. In the case of the four lenses 14, this means that the lenses 14 are each spaced apart from their respective neighboring lenses 14 at an angle of 90 degrees. Each of the lenses 14 can be designed as a Fresnel lens, in particular a white Fresnel lens. The lenses 14 of Fig. 3b can be arranged in such a way that they correspond to the arrangement of the light sources 12 from Fig. 3a, as is the case with regard to the Fig. 1a to 2b.

[0039] By means of the exemplary embodiments of the medical lighting device shown as examples, a light field can be easily adapted.

Claims

[1] Medical lighting device (10) comprising: at least one light source (12) arranged and configured to emit light; and at least one lens (14) arranged and designed to at least partially receive the emitted light and to at least partially emit it in the direction of an operating area to be illuminated; wherein the at least one light source (12) is arranged and designed to be movable relative to the at least one lens (14) in a direction transverse to a beam path of the light emitted by the at least one light source (10). [2] Medical lighting device (10) according to claim 1, wherein the at least one light source (12) is arranged and designed in such a way: to be movable relative to the at least one lens (14) in a direction at least nearly perpendicular to the beam path of the light emitted by the at least one light source (10); and / or to be movable relative to the at least one lens (14) in a direction at least almost parallel to an extension direction of the at least one lens (14). [3] Medical lighting device (10) according to claim 1 or 2, wherein the at least one light source (12) is arranged and designed to be mechanically or electromechanically movable, in particular displaceable, relative to the at least one lens (14) in the direction transverse to a beam path of the light emitted by the at least one light source (10). [4] Medical lighting device (10) according to one of claims 1 to 3, wherein the at least one light source (12) is arranged or fixed on at least one light source plate (120) and the at least one light source plate (120) is arranged and designed to be movable relative to the at least one lens (14) in a direction transverse to the beam path of the light emitted by the at least one light source (10). [5] Medical lighting device (10) according to one of claims 1 to 4, wherein a cross section of the medical lighting device (10) is at least almost round and the at least one light source (12) is arranged to be movable / movable in a radial direction of the round cross section. [6] Medical lighting device (10) according to one of claims 1 to 5, wherein the at least one lens (14) is arranged, attached or formed on at least one lens plate and the at least one lens plate is arranged and formed fixedly or fixedly relative to the at least one light source (12). [7] Medical lighting device (10) according to one of claims 1 to 6, wherein the at least one light source (12) comprises a plurality of light sources (12) or is designed as a plurality of light sources (12). [8] Medical lighting device (10) according to one of claims 1 to 7, wherein the at least one light source (12) comprises at least one light-emitting diode or is designed as at least one light-emitting diode. [9] Medical lighting device (10) according to one of claims 1 to 8, wherein the at least one lens (14) comprises at least one Fresnel lens, in particular a white Fresnel lens, or is designed as at least one Fresnel lens, in particular as at least one white Fresnel lens. [10] Medical lighting device (10) according to one of claims 1 to 9, wherein the medical lighting device (10) has at least one aperture (16), wherein the at least one aperture (16) extends in particular at least parallel to the beam path.

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