阅读说明：本技术 具有光源的医疗设备和用于在医疗设备处发出光信号的方法 (Medical device with light source and method for emitting an optical signal at a medical device ) 是由 M·舒斯特 H·米勒 于 2021-03-25 设计创作，主要内容包括：根据本公开的各实施例涉及具有光源的医疗设备和用于在医疗设备处发出光信号的方法。本发明涉及一种医疗设备,该医疗设备具有被设计为涂层的至少一个光源,其中涂层具有发光漆并且覆盖医疗设备的外罩的平坦区域,其中医疗设备是医疗成像装置,其中涂层具有第一导电层、第二导电层和发光漆层,其中发光漆层被布置在第一导电层和第二导电层之间并具有发光漆,其中在第一导电层和第二导电层之间能够产生电场,该电场激励发光漆发光,其中涂层具有至少一个绝缘层,绝缘层被布置在第一导电层和第二导电层之间并且使这两个层彼此电绝缘。(Embodiments in accordance with the present disclosure relate to a medical device having a light source and a method for emitting a light signal at a medical device. The invention relates to a medical device having at least one light source which is designed as a coating, wherein the coating has a luminescent lacquer and covers a flat area of an outer cover of the medical device, wherein the medical device is a medical imaging device, wherein the coating has a first electrically conductive layer, a second electrically conductive layer and a luminescent lacquer layer, wherein the luminescent lacquer layer is arranged between the first electrically conductive layer and the second electrically conductive layer and has the luminescent lacquer, wherein an electric field can be generated between the first electrically conductive layer and the second electrically conductive layer, which electric field excites the luminescent lacquer to emit light, wherein the coating has at least one insulating layer which is arranged between the first electrically conductive layer and the second electrically conductive layer and electrically insulates the two layers from one another.)

1. A medical device (1) having at least one light source (Q) designed as a coating (L), wherein the coating (L) has Luminescent Lacquer (LL) and covers a flat area (F) of an outer cover (V) of the medical device (1),

-wherein the medical apparatus (1) is a medical imaging device,

-wherein the coating (L) has a first electrically conductive layer (L1), a second electrically conductive layer (L2) and a luminescent lacquer layer (L3),

-wherein the luminescent lacquer layer (L3) is arranged between the first electrically conductive layer (L1) and the second electrically conductive layer (L2) and has the Luminescent Lacquer (LL),

-wherein an electric field can be generated between the first electrically conductive layer (L1) and the second electrically conductive layer (L2), said electric field stimulating the luminescent paint (LL) to emit light,

-wherein the coating (L) has at least one insulating layer (L4) arranged between the first conductive layer (L1) and the second conductive layer (L2) and electrically insulating both the first conductive layer (L1) and the second conductive layer (L2) from each other.

2. The medical device (1) according to claim 1,

-wherein the medical device (1) has a tunnel-shaped opening (9) into which a patient (13) can be introduced,

-wherein the coating (L) covers at least one partial surface (F9) of the outer cover (V) of the medical device (1) facing the tunnel-shaped opening (9).

3. The medical device (1) according to claim 1 or 2,

-wherein the medical device (1) has an end face (8),

-wherein the coating (L) covers at least one partial surface (F8) of the end face (8) of the medical device (1).

4. The medical device (1) according to any one of claims 1 to 3,

-wherein the medical device (1) has an inner region (7) defined by the housing (V) of the medical device (1),

-wherein the coating (L) covers at least one partial surface (F7) of the outer cover (V) of the medical device (1) facing the inner region (7).

5. The medical device (1) according to any one of claims 1 to 4,

-wherein at least one recess (A) is designed in the housing (V) of the medical device (1),

-wherein said at least one recess (A) is surrounded by said flat area (F).

6. The medical device (1) according to any one of claims 1 to 5,

-wherein said flat area (F) of said casing (V) has a curvature about a first axis (K1).

7. The medical device (1) according to claim 6,

-wherein the flat area (F) of the casing (V) has a curvature around a second axis (K2), wherein the second axis (K2) is perpendicular to the first axis (K1).

8. The medical device (1) according to any one of claims 1 to 7,

-wherein the electric field is an alternating electric field,

-wherein the luminescent paint (LL) has a pigment,

-wherein the luminescence of the luminescent paint (LL) is based on the electroluminescence of the pigment,

-wherein the electroluminescence of the pigment is based on an alternating field excitation of the pigment by the alternating electric field.

9. The medical device (1) according to any one of claims 1 to 8,

-further having a voltage providing unit (6) for providing a voltage between the first conductive layer (L1) and the second conductive layer (L2).

10. The medical device (1) according to any one of claims 1 to 9,

-further having a control unit (5) for providing control information for the at least one light source (Q), wherein a light signal (S) can be emitted by means of the at least one light source (Q) based on the control information.

11. The medical device (1) according to claim 10,

-wherein the light signal (S) shows an operational status of at least one component of the medical device (1) and/or an instruction of one recipient of the light signal (S).

12. The medical device (1) according to any one of claims 1 to 11,

-wherein the medical imaging apparatus is a computed tomography device.

13. A method for emitting an optical signal at a medical device (1) having at least one optical source (Q), the method comprising:

-providing (BI) control information for the at least one light source (Q) designed as coating (L), wherein the coating (L) has a Luminescent Lacquer (LL) and covers a flat area of an outer cover (V) of the medical device (1), wherein the medical device (1) is a medical imaging apparatus, wherein the coating (L) has a first electrically conductive layer (L1), a second electrically conductive layer (L2) and a luminescent lacquer layer (L3), wherein the luminescent lacquer layer (L3) is arranged between the first electrically conductive layer (L1) and the second electrically conductive layer (L2) and has the Luminescent Lacquer (LL), wherein an electric field can be generated between the first electrically conductive layer (L1) and the second electrically conductive layer (L2), which electric field excites the Luminescent Lacquer (LL) to emit light, wherein the coating (L) has at least one insulating layer (L4), the at least one insulating layer is arranged between the first electrically conductive layer (L1) and the second electrically conductive layer (L2) and electrically insulates both the first electrically conductive layer (L1) and the second electrically conductive layer (L2) from each other,

-emitting (AS) an optical signal (S) by means of said at least one light source (Q) based on said control information.

14. The method of claim 13, wherein the first and second light sources are selected from the group consisting of,

-wherein the light signal (S) shows an operational status of at least one component of the medical device (1) and/or an instruction of one recipient of the light signal (S).

15. The method according to claim 13 or 14,

wherein the medical device (1) is designed according to any one of claims 1 to 12.

Technical Field

The invention relates to a medical device having at least one light source. The invention further relates to a method for emitting an optical signal at a medical device.

Background

In particular, since the 3D geometry of the housing parts is often complex, the illumination of the housing (Verkleidung) of a medical device (e.g. a computed tomography device) is problematic with regard to space requirements, heat dissipation and geometry constraints.

In the case of relatively small surfaces with simple planar geometries, LED panel technology can be used, which however requires a relatively large installation space for the LED units and in addition requires a separate light carrier, a diffusing glass or diffuser, cables and a control module.

Disclosure of Invention

It is an object of the present invention to provide an improved light source for a medical device housing.

This object is achieved by each of the independent claims. Further advantageous aspects of the invention are considered in the dependent claims.

The invention relates to a medical device having at least one light source which is designed as a coating, wherein the coating has a luminescent lacquer and covers a flat area of a housing of the medical device,

-wherein the medical apparatus is a medical imaging device,

-wherein the coating has a first electrically conductive layer, a second electrically conductive layer and a luminescent lacquer layer,

-wherein a luminescent lacquer layer is arranged between the first electrically conductive layer and the second electrically conductive layer and has a luminescent lacquer,

wherein an electric field can be generated between the first electrically conductive layer and the second electrically conductive layer, which electric field excites the luminescent lacquer to emit light,

-wherein the coating has at least one insulating layer arranged between the first and second electrically conductive layers and electrically insulating the two layers from each other.

In particular, it can be provided that the medical device has a housing, wherein the flat region of the housing of the medical device is a flat region of the housing of the medical device housing, and/or that the medical device has a patient support, wherein the flat region of the housing of the medical device is a flat region of the housing of the patient support of the medical device.

In particular, it can be provided that the coating completely covers a flat area of the housing of the medical device and/or that the light source forms at least one partial surface of the medical device. The housing of the medical device may be made of, for example, metal and/or plastic, and/or designed to isolate the interior region of the medical device from the surrounding environment of the medical device. The housing of the medical device may in particular be formed by one or more planar molded parts.

One embodiment provides that the medical device has a tunnel-shaped opening into which the patient can be introduced, in particular for examination and/or irradiation by means of the medical device, wherein the coating covers at least one partial surface of the housing of the medical device facing the tunnel-shaped opening. The tunnel-shaped opening of the medical device may in particular be a tunnel-shaped opening of a housing of the medical device. The partial surface of the medical device housing facing the tunnel-shaped opening can in particular be arranged to be visible to a patient who is introduced into the tunnel-shaped opening in a preset orientation relative to the medical device.

The flat region of the medical device housing covered by the coating can in particular comprise at least one partial surface of the medical device housing facing the tunnel-shaped opening.

One embodiment provides that the medical device has an end face, wherein the coating covers at least one partial surface of the end face of the medical device. The end face of the medical device may particularly be an end face of a housing of the medical device. The flat region of the medical device housing covered by the coating can in particular comprise at least one partial surface of the end face of the medical device.

In particular, it can be provided that the end face of the medical device surrounds the tunnel-shaped opening in an annular manner. The end face of the medical instrument may, for example, have a substantially funnel-shaped region which tapers towards the tunnel-shaped opening. Furthermore, the end face of the medical device may, for example, also have a substantially annular region adjoining the edge of the tunnel-shaped opening facing away from the funnel-shaped region.

One embodiment provides that the medical device has an interior region defined by an outer cover of the medical device, wherein the coating covers at least one partial surface of the outer cover of the medical device facing the interior region. The interior region of the medical device may in particular be an interior region of a housing of the medical device.

In particular, it can be provided that the light source is not visible from the surroundings of the medical device if the housing of the medical device is complete.

One embodiment provides that at least one recess is designed in the housing of the medical device, wherein the at least one recess is surrounded by a flat region.

In particular, the opening can be designed in the region of the recess in a flat region of the housing of the medical device. The flat area of the medical device housing may, for example, be continuous or consist of a plurality of mutually separated partial areas of the medical device housing. In this way, it is also possible to illuminate the interrupted contour.

One embodiment provides that the flat region of the housing has a curvature about the first axis. One embodiment provides that the flat region of the housing has a curvature about a second axis, wherein the second axis is perpendicular to the first axis. By means of the luminescent paint, in particular large-area complex 3D contours can be illuminated.

Furthermore, according to one embodiment, the medical device further has a voltage supply unit for supplying a voltage between the first and second electrically conductive layers, in particular for generating an electric field between the first and second electrically conductive layers. The luminescent lacquer is excited by an electric field, so that electromagnetic radiation is emitted in the form of light. A relatively low voltage supply (e.g., one or several hundred volts) is sufficient to activate the luminescent paint. The voltage providing unit may for example be based on an inverter.

The electric field may in particular be an alternating electric field. The voltage may in particular be an alternating voltage. The frequency of the alternating electric field and/or the alternating voltage may in particular be greater than 50Hz, in particular greater than 100Hz, and/or less than 15kHz, in particular less than 10 kHz. For example, the luminous intensity of the luminescent lacquer can be adjusted by adjusting the amplitude and/or the frequency of the alternating voltage.

For example, it can be provided that each layer of the coating is produced on the basis of water. The luminescent lacquer can be produced, for example, on the basis of water. The luminescent paint can, for example, have a Pigment (Pigment). The pigment may in particular be an inorganic pigment. The pigment may be, for example, a zinc sulfide compound doped with a metal.

The luminescence of the luminescent lacquer can be based, for example, on electroluminescence (Elektrolumineszenz), in particular on the basis of pigments. The electroluminescence of the pigments can be based, for example, on alternating field excitation of the pigments by means of an alternating electric field. The electroluminescence can be based in particular on the Desterio effect (Destraliu-Effekt).

In particular, it can be provided that the first electrically conductive layer is arranged between the flat region of the medical device housing and the second electrically conductive layer.

The insulating layer may in particular be arranged between the first electrically conductive layer and the luminescent lacquer layer. The insulating layer can in particular be designed to be reflective, so that the insulating layer reflects light emitted from the luminescent lacquer layer and incident on the insulating layer.

The coating can furthermore have at least one protective layer for protecting the layers of the coating lying below the protective layer. The second electrically conductive layer can in particular be arranged between the luminescent lacquer layer and the at least one protective layer. In particular, it can be provided that the second electrically conductive layer is transparent and/or that at least one protective layer is transparent.

According to one embodiment, the medical device further has a control unit for providing control information for the at least one light source, wherein the light signal can be emitted by means of the at least one light source based on the control information.

In particular, it can be provided that the medical device has a plurality of light sources, wherein each of the plurality of light sources is designed as a coating, wherein the coating has a luminescent lacquer corresponding to the light source and covers a flat region of the medical device housing corresponding to the light source. Further, a voltage supply unit and/or a control unit may be provided for each of the plurality of light sources, respectively.

One embodiment provides that the light signal indicates an operating state of at least one component of the medical device and/or an instruction of a recipient of the light signal.

In particular, it can be provided that the at least one instruction of the receiver of the optical signal is selected from the group consisting of: patient instructions for performing examinations and/or treatments by means of the medical device, instructions for operating the medical device, and technician instructions for maintaining and/or servicing the medical device.

In this way, functional and/or informative lighting can be achieved by means of the light source. Thus, the complex surface of the medical device housing may be used as a functional and/or information carrier, for example for issuing instructions to the recipient of the optical signal.

The recipient of the optical signal may particularly be the person for whom the optical signal is intended. The recipient of the optical signal may be, for example, a patient, an operator or a technician, in particular a service technician.

By means of the color coding, various instructions can be given to the patient, such as inhalation, exhalation, lying still or rising, for example in the form of light signals. Thus, in particular, instructions can be given to patients who are not hearing and/or who speak different languages. Furthermore, the fear of the patient of a narrow, dark tunnel or a medical device can be relieved, for example, by means of the light source.

For an operator, a particular color of the light signal may, for example, indicate that the medical device is ready to examine and/or treat a patient.

For the service technician, different fault images can be displayed in the form of light signals by means of color coding. For example, by means of the light signal it can be indicated which component of the medical device is faulty and/or has to be checked.

The component of the medical device may be, for example, a component of a rotational bearing of a rotor of the medical device rack, a component of a tilt bearing of a tilt frame of the medical device rack, a component of a cooling device of the medical device rack, a component of a power supply unit of the medical device, a component of an acquisition unit of the medical device, or a component of a patient support apparatus of the medical device. In particular, it can be provided that one or more components of the medical device have a coating based on a luminescent lacquer, in particular in order to emit a light signal in relation to the respective component.

Furthermore, as informative illumination, the name of the medical device and/or the name of the company manufacturing the medical device may be output by means of the light source.

One embodiment provides that the medical device is a medical imaging apparatus.

Furthermore, the invention relates to a method for emitting an optical signal at a medical device having at least one light source, the method comprising:

providing control information for the at least one light source designed as a coating, wherein the coating has a luminescent lacquer and covers a flat area of a housing of the medical device, wherein the medical device is a medical imaging apparatus, wherein the coating has a first electrically conductive layer, a second electrically conductive layer and a luminescent lacquer layer, wherein the luminescent lacquer layer is arranged between the first electrically conductive layer and the second electrically conductive layer and has the luminescent lacquer, wherein an electric field can be generated between the first electrically conductive layer and the second electrically conductive layer, which electric field excites the luminescent lacquer to emit light, wherein the coating has at least one insulating layer which is arranged between the first electrically conductive layer and the second electrically conductive layer and electrically insulates the two layers from one another,

-emitting a light signal by means of at least one light source based on the control information.

One embodiment provides a method for emitting an optical signal at a medical device according to any of the disclosed aspects, wherein the optical signal displays an operational status of at least one component of the medical device and/or an instruction of a recipient of the optical signal.

One embodiment of the method provides that the medical device is designed according to the invention.

The medical imaging device may for example be selected from the group of imaging modalities consisting of: an X-ray apparatus, a C-arm X-ray apparatus, a computed tomography apparatus (CT apparatus), a molecular imaging machine (MI apparatus), a single photon emission computed tomography apparatus (SPECT apparatus), a positron emission tomography apparatus (PET apparatus), a magnetic resonance tomography apparatus (MR apparatus) and combinations thereof, in particular a combination of a PET-CT apparatus and a PET-MR apparatus. Furthermore, the medical imaging device may have a combination of an imaging modality, for example selected from a group of imaging modalities, and an irradiation modality. The irradiation modality may have, for example, an irradiation unit for therapeutic irradiation.

The gantry of the medical imaging apparatus usually has a support structure at which in particular components of the acquisition unit, in particular the radiation source and/or the radiation detector, are arranged. The support structure of the gantry typically has a high stiffness and strength, so that the components of the acquisition unit can be arranged in a defined geometry sufficient for imaging, both with respect to each other and with respect to the area to be imaged.

In a computed tomography apparatus, the gantry usually has a support frame and a rotor which is rotatably supported relative to the support frame, wherein the radiation source and the radiation detector are arranged at the rotor. Alternatively, the gantry may have a tilt frame tiltably supported with respect to the support frame, wherein the rotor is arranged at the tilt frame.

In a C-arm X-ray apparatus, the gantry typically has a support frame and a C-arm which is pivotably supported relative to the support frame, wherein the radiation source and the radiation detector are arranged at the C-arm.

In a magnetic resonance tomography apparatus, the gantry usually has a support frame at which a main magnet and a first high-frequency antenna unit are arranged, wherein the first high-frequency antenna unit is designed in the form of a Body Coil, which is also known to the person skilled in the art under the term "Body Coil".

Without limiting the general inventive concept, in some of its embodiments, a computed tomography device is listed as an example of a medical device.

Features described in relation to different embodiments of the invention and/or different claim categories (methods, uses, devices, systems, arrangements, etc.) may be combined to form further embodiments of the invention within the scope of the invention. For example, claims directed to apparatus may also be extended to include features described or claimed in connection with methods and vice versa. The functional features of the method can be implemented here by means of correspondingly designed, specific components. In addition to the embodiments of the invention explicitly described in this application, various other embodiments of the invention are also contemplated, which may be made by those skilled in the art without departing from the scope of the invention as specified by the claims.

In the context of the present application, the word "based on" may be understood in particular in the sense of the word "by use". In particular, the generation (alternatively: determination, etc.) of a representation of a first feature based on a second feature does not exclude that a first feature may be generated (alternatively: determination, etc.) based on a third feature.

Drawings

The invention is explained below by means of embodiments with reference to the drawings. The illustrations in the drawings are schematic, greatly simplified and not necessarily drawn to scale. Wherein:

figure 1 shows a side view of an LED panel,

figure 2 shows the layer structure of the LED panel,

figure 3 shows a layer structure of a coating with a luminescent lacquer,

figure 4 shows a portion of a housing of a medical device,

figure 5 shows the interior region of the medical device,

figure 6 shows a flat region with curvature about multiple axes,

figure 7 shows different operating states of a light source based on a luminescent lacquer,

fig. 8 shows a medical device with a light source designed as a coating, and

fig. 9 shows a flow chart of a method for emitting an optical signal at a medical device.

Detailed Description

Fig. 1 shows a side view of an exemplary LED panel P. The light of the light-emitting diodes PL arranged on the light carrier PT is absorbed by means of the diffuser plate, diffusely distributed and emitted to the surroundings of the LED panel.

The diffuser plate PD can be connected to a housing, in particular an aluminum housing, by means of the retaining PDH. The optical carrier PT can be connected to a housing, in particular an aluminum housing, by means of a holding portion PTH. The heat from the light-emitting diode PL can be conducted away, for example, by means of an aluminum housing, so that a high service life of the light-emitting diode PL can be ensured. A unit PE for controlling and powering the light emitting diodes PL arranged on the light carrier PT is likewise arranged on the light carrier PT.

Fig. 2 shows a layer structure of another exemplary LED panel P. The plastic plate PR shields light generated in the LED panel P toward the rear surface of the LED panel P. The light-emitting diodes PL are arranged on a light carrier PT which is designed to be relatively thin and which reflects light emitted by the light-emitting diodes PL towards the front side of the LED panel P.

The slightly wider light guide plate PW is designed to absorb light emitted by the light emitting diodes PL and to transmit the light as losslessly as possible. Other arrangements of the light emitting diodes PL with respect to the light guide plate PW are also possible, for example such that the light emitting diodes PL radiate light into the narrow sides of the light guide plate PW and/or such that the light emitting diodes PL are not arranged at the same distance from the light guide plate PW all together. For example, it is possible that the light carrier PT and the light guide plate PW are arranged to be non-parallel to each other.

A relatively thin diffuser plate PD, which may be made of polycarbonate, for example, is designed to distribute and emit light diffusely to the surroundings of the LED panel P.

Thus, a homogeneous surface with uniform light emission can be provided by means of the LED panel P, wherein, however, a plurality of components, each requiring relatively large space requirements, are required and have to be fitted to one another precisely. This is problematic in particular when surfaces of more complex shapes are to be illuminated.

Fig. 3 shows the layer structure of a coating L with a luminescent lacquer LL. The coating L has a first electrically conductive layer L1, a second electrically conductive layer L2 and a luminescent lacquer layer L3. The luminescent lacquer layer L3 is arranged between the first electrically conductive layer L1 and the second electrically conductive layer L2 and has a luminescent lacquer LL. An electric field can be generated between the first conductive layer L1 and the second conductive layer L2, which excites the luminescent paint LL to emit light.

Furthermore, the coating L has an insulating layer L4, which insulating layer L4 is arranged between the first conductive layer L1 and the second conductive layer L2 and electrically insulates these two layers from one another. The coating L also has a protective layer LS for protecting the layers of the coating L located below the protective layer LS.

The voltage supply unit 6 is designed to supply a voltage between the first conductive layer L1 and the second conductive layer L2. For this purpose, the voltage supply unit 6 is electrically conductively connected to the first conductive layer L1 and to the second conductive layer L2.

The control unit 5 is designed to provide BI control information for the at least one light source Q, wherein the light signal S can be emitted by means of the at least one light source Q on the basis of the control information. Compared to the LED panel P, the coating L with the luminescent lacquer LL requires significantly less installation space and fewer components to be mounted.

Fig. 4 shows a part of the housing V of the medical device 1. The medical device 1 has a tunnel-shaped opening 9, into which opening 9 a patient 13 can be introduced, for example, for examination and/or irradiation by means of the medical device 1. The coating L covers at least a partial surface F9 of the housing V of the medical device 1 facing the tunnel-shaped opening 9.

The medical device 1 has an end face 8, wherein the coating L covers at least one partial surface F8 of the end face 8 of the medical device 1. At least one recess a is designed in the housing V of the medical device 1, wherein the at least one recess a is surrounded by a flat region F. The at least one recess may for example be provided for a loudspeaker and/or an operating panel.

Fig. 5 shows an interior region 7 of the medical device 1, wherein a part of the housing V of the medical device 1 is removed. The interior region 7 of the medical device 1 is defined by the housing V of the medical device 1. The coating L covers at least one partial surface F7 of the housing V of the medical device 1 facing the inner region 7.

Fig. 6 shows a flat region F with curvature about multiple axes. The flat region F has a curvature about a first axis K1 and a curvature about a second axis K2, wherein the second axis K2 is perpendicular to the first axis K1. For such complex 3D profiles, especially compared to using LED panels P, it is particularly advantageous to use light sources Q designed as coatings L.

Fig. 7 shows different operating states of a light source based on a luminescent lacquer.

In the inactive operating state Q11 of the first light source Q1, the luminescent lacquer with which the characters are applied does not emit light, so that the characters are not visible. In the active operating state Q12 of the first light source Q1, the luminescent lacquer on which the text is applied emits light, so that the text is visible.

In the inactive operating state Q21 of the second light source Q2, the light-emitting lacquer surrounding the characters does not emit light, so that the characters are not visible. In the active operating state Q22 of the second light source Q2, the luminous lacquer surrounding the text emits light, so that the text is visible.

Fig. 8 shows a medical device 1 with a light source Q designed as a coating L with a luminescent lacquer LL and covering a flat area F of a housing V of the medical device 1. The medical apparatus 1 is a medical imaging device, in particular a computed tomography apparatus. The computer tomography apparatus has a gantry 20, a tunnel-shaped opening 9 and a patient support 10.

The gantry 20 has a support frame 21, a tilt frame 22, and a rotor 24, wherein the tilt frame 22 is tiltably supported with respect to the support frame 21, and the rotor 24 is rotatably supported with respect to the tilt frame 22. A radiation source in the form of an X-ray source 26 and a radiation detector 28 are arranged at the rotor 24 and form an acquisition unit. The voltage supply unit 6 for the light source Q is arranged at the tilt frame 22.

The patient 13 can be introduced into the tunnel-shaped opening 9. The acquisition region 4 is located in a tunnel-shaped opening 9. The region to be imaged of the patient 13 in the acquisition region 4 can be positioned such that X-ray radiation 27 can reach the region to be imaged from the X-ray source 26 and can reach the radiation detector 28 after interaction with the region to be imaged. The patient support apparatus 10 has a support base 11 and a support plate 12 for supporting a patient 13. The support plate 12 is arranged at the support base 11 movably relative to the support base 11, so that the support plate 12 can be introduced into the acquisition region 4 in the longitudinal direction of the support plate 12.

An X-ray source 26 is arranged at the rotor 24 and is designed to emit X-ray radiation 27. A radiation detector 28 is arranged at the rotor 24 and is designed to detect X-ray radiation 27. In this way, acquisition data of the region to be imaged can be acquired in the form of projection data by means of the acquisition unit. The arithmetic unit 30 is designed to receive the acquisition data acquired by the acquisition unit.

The arithmetic unit 30 in the form of a computer is designed to control the medical device 1. The arithmetic unit 30 has an image reconstruction device 34, a control unit 5, a computer-readable medium 32 and a processor system 36. The control unit 5 is connected to the coating L by means of a voltage supply unit 6.

The computer tomography system has an input device 38 and an output device 39, the input device 38 and the output device 39 being connected to the arithmetic unit 30. The input device 38 is designed for inputting control data, such as image reconstruction parameters, examination parameters, etc. The output device 39 is designed in particular for outputting control data, images and/or sound signals.

Fig. 9 shows a flow diagram of a method for emitting an optical signal at a medical device, the method comprising:

providing BI control information for at least one light source Q designed as a coating L with a luminescent lacquer LL and covering a flat area of a housing V of the medical device 1, and

emitting an AS light signal S by means of at least one light source Q based on the control information.