Light indication system for magnetic resonance equipment and magnetic resonance equipment

Abstract

The utility model provides a light indicating system for magnetic resonance equipment and magnetic resonance equipment, and the light indicating system comprises at least one light source which is used for being installed on the magnetic resonance equipment, and the brightness and / or color of the light source is configured to be adjustable; the controller is used for being installed on the magnetic resonance equipment and electrically connected with the light source through a cable, and the controller is configured to be capable of controlling the light source to display different brightness and / or colors; and the controller, the light source and the cable are wrapped with the electromagnetic shielding structures. According to the utility model, through the innovatively designed light indication system and a plurality of electromagnetic compatibility optimization measures, the problems in the prior art that a photoelectric part interferes imaging, communication between a detector and a technician is not smooth, state information cannot be fed back by static light and the like are solved.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic resonance equipment technology, specifically relating to a light indicator system for magnetic resonance equipment and magnetic resonance equipment. Background Technology

[0002] In practical applications of MRI systems, given the unique operating environment and noise sensitivity of MRI systems, the electromagnetic radiation generated by the normal operation of the front shell photoelectric components during examinations may interact with the strong magnetic field of the MRI equipment, thus affecting image quality. Furthermore, due to the special operating environment and noise sensitivity of MRI products, most current MRI products using lighting effects employ static lighting, which is limited to simple ambient atmosphere adjustment. This static lighting effect cannot facilitate communication between the examiner and technician, nor can it provide timely feedback on the status of the examiner or the product, making it difficult to meet the needs of actual examination work. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a light indication system for magnetic resonance imaging equipment and magnetic resonance imaging equipment, so as to solve the problems in the prior art, such as the impact of the operation of the photoelectric components of the front shell of the MRI system on the imaging quality, the lack of effective communication between the examiner and the technician, and the inability of static lights to provide status information.

[0004] To achieve the above and other related objectives, this utility model proposes a lighting indicator system for magnetic resonance imaging (MRI) equipment, comprising:

[0005] At least one light source for mounting on a magnetic resonance device, the brightness and / or color of the light source being configured to be adjustable;

[0006] A controller, which is mounted on a magnetic resonance device and connected to the photoelectric source via a cable, is configured to control the light source to display different brightness and / or colors.

[0007] An electromagnetic shielding structure is provided, which is used to wrap the outer sides of the controller, the light source, and the cable.

[0008] In one specific embodiment of this utility model, the electromagnetic shielding structure includes a first shielding shell, which is used to enclose the controller. The shielding shell has multiple shielding ribs distributed inside to form multiple shielding chambers, and each shielding chamber corresponds to a functional module of the controller's circuit board.

[0009] In one specific embodiment of this utility model, a first shielding layer penetrating the thickness direction of the circuit board is provided around the functional module within the circuit board.

[0010] In one specific embodiment of the present invention, the electromagnetic shielding structure further includes a second shielding layer formed on the circuit board. The second shielding layer extends along the plane of the circuit board and forms the shielding cavity between the first shielding shell and the first shielding layer.

[0011] In one specific embodiment of this utility model, the first shielding layer, the second shielding layer, and the first shielding shell are electrically connected and connected to the ground wire of the circuit board.

[0012] In one specific embodiment of this utility model, the first shielding shell includes an upper shielding shell and a lower shielding shell. The upper shielding shell and the lower shielding shell are located on both sides of the circuit board and are fixedly connected, forming an upper shielding cavity and / or a lower shielding cavity between them and the circuit board.

[0013] In one specific embodiment of this utility model, at least one side of the circuit board is provided with a plurality of isolation ribs, the isolation ribs, the first shielding layer and the shielding ribs are respectively corresponding to each other, and form the upper shielding chamber and / or the lower shielding chamber.

[0014] In one specific embodiment of this utility model, the shielding rib has a protrusion on the surface facing the circuit board, and the width of the protrusion is smaller than the width of the shielding rib; or the isolation rib has a protrusion on the surface facing the shielding housing, and the width of the protrusion is smaller than the width of the isolation rib.

[0015] In one specific embodiment of this utility model, the upper shielding shell, the lower shielding shell, the isolation rib, and the first shielding layer are electrically connected and connected to the ground wire of the circuit board.

[0016] In one specific embodiment of this utility model, the connection point connected to the ground wire of the circuit board is close to the power interface module of the controller.

[0017] In one specific embodiment of this utility model, the circuit board includes a signal layer, a ground layer, and a power layer. The projection of the ground layer onto a first plane covers the signal layer and the power layer. The first plane is the plane on which the circuit board is located.

[0018] In one specific embodiment of this utility model, the minimum distance between the edge of the grounding layer and the first shielding layer is less than the minimum distance between the edge of the signal layer and the first shielding layer, and the minimum distance between the edge of the grounding layer and the first shielding layer is less than the minimum distance between the edge of the power layer and the first shielding layer.

[0019] In a specific embodiment of this utility model, the distance between the power layer and the ground layer is h1, and the minimum distance between the edge of the power layer and the edge of the ground layer is d1, where d1 ≥ 10h1.

[0020] In a specific embodiment of this utility model, the distance between the signal layer and the ground layer is h2, and the minimum distance between the edge of the signal layer and the edge of the ground layer is d2, wherein d2≥10h2.

[0021] In one specific embodiment of this utility model, the functional module includes multiple interface units, and the interface unit includes a common-mode filter circuit and a high-frequency filter circuit.

[0022] In one specific embodiment of this utility model, the electromagnetic shielding structure further includes a second shielding shell, which is used to enclose the light source. The second shielding shell has multiple waveguide holes, each waveguide hole corresponding to a light source. The waveguide holes are configured to allow visible light to pass through, but not to allow electromagnetic waves located outside the visible light frequency to pass through.

[0023] In one specific embodiment of this utility model, the diameter range of the waveguide hole is set to be less than 10 mm.

[0024] This utility model also proposes a magnetic resonance device, including a light indication system for the magnetic resonance device as described in any of the above embodiments.

[0025] In one specific embodiment of the present invention, the light source is configured to be installed in the front housing and / or scanning channel of the magnetic resonance device.

[0026] This utility model provides a lighting indicator system for magnetic resonance imaging (MRI) equipment and the MRI equipment itself. Through innovative design of the light source, controller, and electromagnetic shielding structure, combined with multiple electromagnetic compatibility optimization measures, it achieves significant technical effects:

[0027] This invention effectively suppresses electromagnetic interference and ensures that MRI imaging quality is not affected by incorporating an electromagnetic shielding structure on the outside of the controller, light source, and cables. The electromagnetic shielding structure includes a first shielding shell and a second shielding shell, which respectively enclose the controller and light source, further optimizing the electromagnetic shielding effect. The first shielding shell contains shielding ribs to form multiple independent shielding chambers, each corresponding to a functional module on the circuit board. Simultaneously, the shielding layers isolate the functional modules on the circuit board, and the combined design of the outer shell forms a Faraday electromagnetic shielding cage, effectively reducing electromagnetic interference between the functional modules on the circuit board, ensuring unaffected imaging, and improving imaging quality. The waveguide holes on the second shielding shell allow light to pass through while effectively blocking electromagnetic waves, further ensuring the stability of the MRI system.

[0028] The brightness, color, and animation of the light source in this invention can be adjusted independently, enabling communication and status feedback between the examiner and technician through dynamic lighting effects. The dynamic lighting effects provide real-time feedback on the testing status, helping examiners and technicians to better complete the testing work, significantly improving testing efficiency and patient experience.

[0029] In this invention, the shielding shell is connected to the ground wire of the circuit board at a single point, and the connection point is close to the power interface module, which further optimizes the electromagnetic shielding path and reduces the impact of electromagnetic noise on the MRI system. In addition, the functional modules are designed with common-mode filtering circuits and high-frequency filtering circuits, further enhancing the system's anti-interference capability.

[0030] In this invention, the circuit board stack-up design is optimized so that the distance between the power plane and signal traces and the reference plane (ground plane) is at least 10 times the distance to the reference plane. This reduces the radiation of electromagnetic waves to the edge of the board and improves the shielding effect. At the same time, the reduction of long-distance signal traces on the surface reduces signal attenuation and crosstalk, and improves signal quality.

[0031] In this invention, the light source can be installed in the front shell and / or scanning channel of the MRI equipment. The dynamic lighting effect provides real-time feedback on the detection status, helping the examiner and technician to better complete the detection work. This design not only improves detection efficiency but also enhances the patient's detection experience.

[0032] In summary, this invention, through its innovatively designed lighting indicator system and multiple electromagnetic compatibility optimization measures, solves the problems of photoelectric component interference with imaging, poor communication between the examiner and technician, and the inability of static lighting to provide status information in existing technologies. This invention significantly improves the efficiency of MRI examinations and the patient experience, while ensuring stable operation of the system in complex electromagnetic environments and meeting the requirements of electromagnetic compatibility standards. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the controller in one embodiment of the present invention.

[0035] Figure 2 This is an exploded view of the controller in one embodiment of the present invention.

[0036] Figure 3A schematic diagram of the first shielding shell in one embodiment of the present invention.

[0037] Figure 4 This utility model presents a schematic diagram of the circuit board division in one embodiment.

[0038] Figure 5 A schematic diagram of the stacked design of the circuit board in one embodiment of this utility model.

[0039] Figure 6 A schematic diagram of the light source in one embodiment of this utility model.

[0040] Label Explanation:

[0041] 10. Light source; 21. First shielding shell; 22. Circuit board; 211. Shielding rib; 212. Shielding chamber; 201. Upper shielding shell; 202. Lower shielding shell; 221. First shielding layer; 203. Signal layer; 204. Grounding layer; 205. Power layer; 11. Second shielding shell; 111. Waveguide hole. Detailed Implementation

[0042] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0043] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0044] In the practical application of MRI systems, there are several technical problems that urgently need to be solved: the impact of photoelectric components on image quality. Using photoelectric components in the front shell of an MRI system can significantly enhance the user experience for patients, operators, and the system itself. However, given the special application environment of MRI systems and their sensitivity to noise, the normal operation of the photoelectric components in the front shell can adversely affect the MRI image quality during examinations. Currently, there are two main ways to use photoelectric components in the MRI anterior shell: one is to turn off the photoelectric components during image data acquisition and only turn them on when in standby or not acquiring image data; the other is to transmit remote electrical signals to the MRI anterior shell via optical fiber. However, the photoelectric conversion process requires photoelectric conversion modules, which typically contain electronic components and generate electromagnetic radiation. When these modules are close to the MRI equipment, the electromagnetic radiation they generate may interact with the strong magnetic field of the MRI equipment, thus affecting image quality. Therefore, neither of these methods fundamentally solves the contradiction between photoelectric components and imaging. Furthermore, there are communication difficulties during the examination process. MRI examinations typically last from several minutes to tens of minutes. Throughout the examination, the examiner is not only in a noisy and confined space, but also under both physical and psychological pressure. Due to the special application environment and noise sensitivity of MRI products, most current MRI products using lighting effects employ static lighting, which is limited to simple ambient atmosphere adjustment. This static lighting effect cannot facilitate communication between the examiner and technician, nor can it provide timely feedback on the status of the examiner or the product, making it difficult to meet the needs of actual examination work. Therefore, this utility model proposes a light indicator system for magnetic resonance imaging (MRI) equipment and an MRI device to solve problems in the prior art, such as the impact of the operation of the photoelectric components in the front shell of the MRI system on imaging quality, the lack of effective communication between the examiner and the technician, and the inability of static lights to provide status information.

[0045] Please see Figures 1 to 6As shown, in this embodiment, the lighting indication system includes at least one light source 10, a controller, and an electromagnetic shielding structure. The light source 10 is mounted on an MRI machine, and one or more of the brightness and color of each light source 10 are configured to be adjustable. The controller is mounted on the MRI machine, for example, inside the front housing of the MRI machine, and is electrically connected to the light source 10 via a cable. The controller is configured to control the light source 10 to display different brightness and / or different colors. Furthermore, the controller can control different light sources 10 to achieve different animation effects such as changes in brightness and / or color, thereby enabling information interaction with the outside world or the patient. The dynamic lighting effects provide real-time feedback on the detection status, helping the examiner and technician to better complete the detection work, improving detection efficiency and enhancing the patient's testing experience. An electromagnetic shielding structure is wrapped around the light source 10, the controller, and the cable. This electromagnetic shielding structure is used to shield electromagnetic fields, effectively suppressing electromagnetic interference and ensuring that the MRI imaging quality is not affected.

[0046] Please see Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the electromagnetic shielding structure includes a first shielding shell 21, which is used to enclose the controller and achieve electromagnetic shielding of the controller. The controller includes a circuit board 22, which is installed inside the first shielding shell 21. Multiple shielding ribs 211 are distributed inside the first shielding shell 21, dividing the cavity within the first shielding shell 21 into multiple shielding chambers 212. When the circuit board 22 is installed inside the first shielding shell 21, each shielding chamber 212 corresponds to a functional module on the circuit board 22, effectively reducing electromagnetic interference between the functional modules on the circuit board 22, ensuring that imaging is not affected, and improving imaging quality.

[0047] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the electromagnetic shielding structure also includes a first shielding layer 221 located around the functional modules within the circuit board 22 and extending through the thickness direction of the circuit board 22. The first shielding layer 221 isolates the functional modules from each other inside the circuit board 22 to reduce electromagnetic interference between the functional modules on the circuit board 22.

[0048] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, the electromagnetic shielding structure further includes a second shielding layer formed on the circuit board 22. The second shielding layer extends along the plane of the circuit board 22 and can be located inside or on the surface of the circuit board 22, forming a shielding chamber 212 between the first shielding housing 21 and the first shielding layer 221. Simultaneously, the first shielding layer 221, the second shielding layer, and the first shielding housing 21 are electrically connected and connected to the ground wire of the circuit board 22. Preferably, the first shielding layer 221, the second shielding layer, the first shielding housing 21, and the ground wire of the circuit board 22 are connected at a single point, optimizing the electromagnetic shielding path and reducing the impact of electromagnetic noise on the MRI system. Furthermore, the connection point connected to the ground wire of the circuit board 22 is close to the power interface module of the controller; for example, the single-point connection point is close to the power interface module of the controller, which can reduce the propagation of noise inside the device. This further reduces the impact of electromagnetic noise on the MRI system. Single-point connection can reduce the area of ​​ground loops, ensure that all grounding paths share a common grounding point, reduce the area of ​​ground loops, thereby reducing magnetic field interference generated by current in the ground wire; it can also reduce the potential difference between different grounding parts, avoid noise caused by potential difference, and help form an effective shielding path, ensuring that the electromagnetic shielding structure can effectively suppress electromagnetic interference.

[0049] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the first shielding housing 21 includes an upper shielding housing 201 and a lower shielding housing 202. The upper shielding housing 201 and the lower shielding housing 202 are located on both sides of the circuit board 22 and are fixedly connected, forming an upper shielding chamber and / or a lower shielding chamber with the circuit board 22. The outermost sides of the upper shielding housing 201 and the lower shielding housing 202 are in contact with each other and connected to enclose the circuit board 22 inside. Specifically, the upper shielding housing 201 and the lower shielding housing 202 each have corresponding shielding ribs 211. The upper shielding housing 201 and the lower shielding housing 202 are located on both sides of the circuit board 22 and are clamped on the circuit board 22. Each shielding rib 211 contacts the circuit board 22 to fix it and separate each functional module in each shielding chamber 212 to reduce electromagnetic interference between the functional modules on the circuit board 22. Furthermore, a first shielding layer 221 is provided inside the circuit board 22. The first shielding layer 221 and the shielding ribs 211 correspond one-to-one to form independent shielding chambers 212, thereby isolating the functional modules on the circuit board 22 from each other and reducing electromagnetic interference between the functional modules on the circuit board 22.

[0050] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, at least one side of the circuit board 22 has multiple isolation ribs distributed thereon. The isolation ribs, the first shielding layer 221, and the shielding ribs 211 correspond one-to-one, forming an upper shielding chamber and / or a lower shielding chamber. For example, multiple isolation ribs are distributed on both sides of the circuit board 22. These isolation ribs separate the functional modules on the circuit board 22, and the isolation ribs correspond one-to-one with the first shielding layer 221 and the shielding ribs 211 in the shielding housing 21. The circuit board 22 is installed in the first shielding housing 21, and the isolation ribs abut against the corresponding shielding ribs 211. The first shielding layer 221 can electrically connect the isolation ribs and the shielding housing located on both sides of the circuit board 22 to form the aforementioned shielding chamber 212. Each shielding chamber 212 forms an independent Faraday electromagnetic shielding cage, thereby isolating the functional modules from each other and reducing electromagnetic interference between the functional modules on the circuit board 22. Of course, in some other embodiments, the shielding ribs 211 can also be in direct contact with the surface of the circuit board 22 to achieve shielding isolation between the functional modules.

[0051] Please see Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the shielding rib 211 has a protrusion on its surface facing the circuit board 22. The width of the protrusion is smaller than the width of the shielding rib 211, so that during installation, the protrusion and the corresponding isolation rib are compressed and deformed to ensure their sealing, thereby improving the shielding effect of each shielding chamber 212. This further reduces electromagnetic interference between functional modules on the circuit board 22, ensuring that imaging is not affected and improving image quality. Alternatively, the isolation rib can also have a protrusion on its surface facing the shielding rib 211, with the width of the protrusion being smaller than the width of the isolation rib. This allows the protrusion and the corresponding shielding rib 211 to be compressed and deformed during installation, ensuring their sealing, thereby improving the shielding effect of each shielding chamber 212. This further reduces electromagnetic interference between functional modules on the circuit board 22, ensuring that imaging is not affected and improving image quality.

[0052] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, the upper shielding shell 201 and the lower shielding shell 202 are electrically connected. When the circuit board 22 is provided with isolation ribs, the upper shielding shell 201, the lower shielding shell 202, the isolation ribs on the circuit board 22, and the first shielding layer 221 are electrically connected and connected to the ground wire of the circuit board 22. Preferably, the connection to the ground wire of the circuit board 22 is a single-point connection, which optimizes the electromagnetic shielding path and reduces the impact of electromagnetic noise on the MRI system. Furthermore, the connection point connected to the ground wire of the circuit board 22 is close to the power interface module of the controller. For example, the connection point of its single-point connection is close to the power interface module of the controller, which can reduce the propagation of noise inside the device. This further reduces the impact of electromagnetic noise on the MRI system. The single-point connection can reduce the ground loop area, ensure that all grounding paths share a common grounding point, reduce the ground loop area, thereby reducing the magnetic field interference generated by the current in the ground wire; and can reduce the potential difference between different grounding parts, avoid noise caused by potential difference, and help form an effective shielding path, ensuring that the electromagnetic shielding structure can effectively suppress electromagnetic interference.

[0053] Please see Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, each functional module on the circuit board 22 includes multiple interface units. These interface units also include the power interface module described in the previous embodiment. Each interface unit includes a common-mode filter circuit and a high-frequency filter circuit. The common-mode filter circuit is mainly used to filter out common-mode noise, i.e., noise flowing between the signal line and the ground line. This noise is usually introduced by an external power supply or signal source. The filter circuit can effectively suppress this noise and reduce its impact on the internal circuitry of the device. The common-mode filter circuit is typically composed of inductors and capacitors. The inductor prevents the flow of high-frequency noise, and the capacitor guides the high-frequency noise to ground, thereby achieving the filtering effect. The high-frequency filter circuit is mainly used to filter out noise in high-frequency signals. High-frequency signals are easily affected by external electromagnetic interference. The filter circuit can effectively suppress this high-frequency noise and ensure signal purity. The high-frequency filter circuit is typically composed of high-precision capacitors and inductors, which can effectively filter out high-frequency noise while maintaining signal integrity. By adding common-mode filtering circuits and high-frequency filtering circuits to the interface unit, radiated and conducted interference at the interface can be significantly reduced, improving the electromagnetic compatibility of the equipment. This design optimizes the equipment's anti-interference capability, ensuring stable operation of the equipment in complex electromagnetic environments and meeting the requirements of electromagnetic compatibility standards.

[0054] Please see Figure 5As shown, circuit board 22 includes a signal layer 203, a ground layer 204, and a power layer 205. The projection of the ground layer 204 onto a first plane covers the signal layer 203 and the power layer 205. The first plane is the plane on the surface of circuit board 22, allowing the electromagnetic waves from the signal layer 203 and the power layer 205 to be blocked by the ground layer 204, preventing them from radiating outward and improving the electromagnetic shielding effect. Furthermore, the minimum distance between the edge of the ground layer 204 and the first shielding layer 221 is less than the minimum distance between the edge of the signal layer 203 and the first shielding layer 221, and the minimum distance between the edge of the ground layer 204 and the first shielding layer 221 is less than the minimum distance between the edge of the power layer 205 and the first shielding layer 221. This allows the signal layer 203 and the power layer 205 to be arranged as far away from the first shielding layer 221 as possible, reducing the radiation of electromagnetic waves to the edge of the board and improving the shielding effect. Furthermore, the distance between the power layer 205 and the ground layer 204 is h1, and the minimum distance between the edge of the power layer 205 and the edge of the ground layer 204 is d1, where d1 ≥ 10h1; the distance between the signal layer 203 and the ground layer 204 is h2, and the minimum distance between the edge of the signal layer 203 and the edge of the ground layer 204 is d2, where d2 ≥ 10h2. This optimization of the positions of the power layer 205 and the signal layer 203 reduces electromagnetic wave radiation to the board edges, improving the shielding effect. It is understandable that the circuit board 22 employs a stacked design along its thickness direction, reducing long-distance signal traces on the surface layer, lowering signal attenuation and crosstalk, and improving signal quality.

[0055] Please see Figure 6As shown, in this embodiment, the electromagnetic shielding structure further includes a second shielding shell 11, which is used to enclose the light source 10. Further, a plurality of waveguide holes 111 are formed on the second shielding shell 11, each waveguide hole 111 corresponding to a light source 10. The waveguide holes 111 are configured to allow visible light to pass through while preventing electromagnetic waves outside the visible light frequency from passing through, thereby improving the shielding effect. Specifically, the second shielding shell 11 utilizes waveguide design theory to create openings that allow visible light to pass through while effectively blocking other electromagnetic waves. This also ensures that strong interference noise from the MRI system cannot interfere with the optoelectronic components, thus guaranteeing the stability of the MRI system. In this embodiment, the diameter of the waveguide holes 111 is set to be less than 10 mm, preferably 5 mm. Using waveguide theory to design the openings effectively filters out electrical signal interference while ensuring visible light transmission, effectively reducing interference with the MRI design. In one specific embodiment of this utility model, the center-to-center distance between two adjacent waveguide holes 111 is set to be less than 20 mm, which can reduce the electromagnetic wave interaction between adjacent waveguide holes 111, thereby improving the electromagnetic wave blocking effect; the layout of the waveguide holes 111 is optimized to ensure that each waveguide hole 111 can independently and effectively block electromagnetic waves without affecting the light transmittance; and the electromagnetic shielding performance of the entire electromagnetic shielding structure can be ensured, reducing the impact of electromagnetic interference on the stability of the MRI system.

[0056] In this embodiment, the light source 10 is configured to be installed within the front housing or scanning channel of the magnetic resonance imaging (MRI) device. For example, the light source 10 can be arranged circumferentially around the front housing at 360°. Independent light source areas are set within the front housing and scanning channel of the MRI device, and the lighting effects of each area can be dynamically adjusted according to different examination stages or patient needs. For example, it can be designed as a light source module including multiple light sources 10, such as LED light units. The number of LED light units can be adjusted as needed. The brightness and color of the LED light units can be controlled individually, or different animation effects can be achieved through combinations of multiple LED light units. Of course, different animation effects can also be achieved by controlling the brightness and color of each light source 10 in a light source module. Alternatively, multiple light sources 10 can be divided into multiple independent modules for independent control to achieve different effects. It should be noted that the number of light sources 10 can be increased or decreased as needed, or the number of light source modules can be increased or decreased as needed, or multiple light sources 10 can be divided into different numbers of independent modules as needed.

[0057] In this embodiment, controlling the light source 10 enables information transmission between the examiner and the technician, including but not limited to: indicating the remaining examination time, indicating the examiner's status (movement / squeezing of the breathing bulb), and indicating voice interaction between the examiner and the technician; it also enables information indication, including but not limited to: indicating the MR system's power-on / self-test status, indicating the MR system's usage / idle status, and indicating whether the MRI coil was successfully inserted. In this embodiment, controlling the dynamic animation effects of the light source 10, such as gradient colors, flashing, and flowing, conveys information in a richer way. For example, color gradients indicate the remaining examination time, and flowing effects guide the patient's attention, improving the efficiency of information transmission and the patient's cooperation.

[0058] In this embodiment, different static and dynamic animation effects are achieved by independently controlling the light source 10, providing a more comfortable and humanized examination environment, alleviating patients' anxiety, improving the smoothness of the examination, enabling efficient information transmission between patients and technicians, reducing examination time, and improving equipment utilization and examination efficiency.

[0059] This invention also proposes a magnetic resonance imaging (MRI) device, which includes a lighting indicator system as described in the above embodiments. The structure of this lighting indicator system is the same as or similar to that described in the above embodiments, and will not be repeated here to avoid repetition. It is understood that the controller in this lighting indicator system is installed inside the front housing of the MRI device and is connected to the light source 10 via a cable. Electromagnetic shielding structures are provided on the outside of the controller, cable, and light source 10 to suppress electromagnetic interference and ensure that the MRI imaging quality is not affected. The light source 10 can be installed inside the front housing or the scanning channel of the MRI device. The controller controls the light source 10, enabling information transmission and human-computer interaction between the examiner and the technician.

[0060] This invention provides a lighting indicator system and an MRI device for magnetic resonance imaging (MRI). By incorporating an electromagnetic shielding structure on the outside of the controller, light source, and cables, electromagnetic interference is effectively suppressed, ensuring that the MRI imaging quality remains unaffected. The electromagnetic shielding structure includes a first shielding shell 21 and a second shielding shell 11, which respectively enclose the controller and the light source 10, further optimizing the electromagnetic shielding effect. The first shielding shell contains shielding ribs 211 to form multiple independent shielding chambers 212. Each shielding chamber 212 corresponds to a functional module on a circuit board 22, while the shielding layers isolate the functional modules on the circuit board 22. Combined with the structural shell, this forms a Faraday electromagnetic shielding cage design, effectively reducing electromagnetic interference between the functional modules on the circuit board 22, ensuring unaffected imaging, and improving imaging quality. The waveguide holes 111 on the second shielding shell 11 allow light to pass through while effectively blocking electromagnetic waves, further ensuring the stability of the MRI system.

[0061] This invention provides a lighting indicator system for magnetic resonance imaging (MRI) equipment and the MRI equipment itself. The brightness and color of the light source 10 can be adjusted independently, enabling information communication and status feedback between the examinee and the technician through dynamic lighting effects. The dynamic lighting effects provide real-time feedback on the testing status, helping examiners and technicians to better complete the testing work, significantly improving testing efficiency and patient experience.

[0062] This invention provides a lighting indicator system for magnetic resonance imaging (MRI) equipment and the MRI equipment itself. The electromagnetic shielding housing is connected to the ground wire of the circuit board 22 at a single point, and the connection point is close to the power interface module, further optimizing the electromagnetic shielding path and reducing the impact of electromagnetic noise on the MRI system. Furthermore, the functional modules are designed with common-mode filtering circuits and high-frequency filtering circuits, further enhancing the system's anti-interference capability.

[0063] This invention provides a light indicator system for magnetic resonance equipment and a magnetic resonance device. Through the optimized design of the 22-layer circuit board, the distance between the power plane and signal traces and the reference plane (ground plane) is at least 10 times the distance to the reference plane, which reduces the radiation of electromagnetic waves to the edge of the board and improves the shielding effect. At the same time, the reduction of long-distance signal traces on the surface reduces signal attenuation and crosstalk, and improves signal quality.

[0064] This invention provides a light indicator system for magnetic resonance imaging (MRI) equipment and the MRI equipment itself. The light source 10 can be installed in the front shell and / or scanning channel of the MRI equipment. The system provides real-time feedback on the detection status through dynamic lighting effects, helping examiners and technicians to better complete the detection work. This design not only improves detection efficiency but also enhances the patient's detection experience.

[0065] It should be understood that the references to "an embodiment," "embodiment," or "specific embodiment" throughout this specification mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0066] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0067] The above description is only a preferred embodiment of this application and an explanation of the technical principles used. Those skilled in the art should understand that the scope involved in this application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by replacing the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0068] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A light indication system for a magnetic resonance apparatus, characterized in that include: At least one light source for mounting on a magnetic resonance device, the brightness and / or color of the light source being configured to be adjustable; A controller is used to be mounted on a magnetic resonance device and electrically connected to the light source via a cable. The controller is configured to control the light source to display different brightness and / or colors. An electromagnetic shielding structure is provided, which is used to wrap the outer sides of the controller, the light source, and the cable.

2. The light indication system for a magnetic resonance device as claimed in claim 1, characterized in that, The electromagnetic shielding structure includes a first shielding shell for enclosing the controller. Multiple shielding ribs are distributed inside the shielding shell to form multiple shielding chambers. Each shielding chamber corresponds to a functional module of the controller's circuit board.

3. The light indication system for a magnetic resonance device as claimed in claim 2, characterized in that, Inside the circuit board, a first shielding layer is provided around the functional module, extending through the thickness direction of the circuit board.

4. The light indication system for a magnetic resonance device of claim 3, wherein, The electromagnetic shielding structure further includes a second shielding layer formed on the circuit board. The second shielding layer extends along the plane of the circuit board and forms the shielding cavity between the first shielding shell and the first shielding layer.

5. The light indication system of a magnetic resonance apparatus according to claim 4, characterized in that, The first shielding layer, the second shielding layer, and the first shielding shell are electrically connected and connected to the ground wire of the circuit board.

6. The light indication system for a magnetic resonance device of claim 3, wherein, The first shielding housing includes an upper shielding housing and a lower shielding housing. The upper shielding housing and the lower shielding housing are located on both sides of the circuit board and are fixedly connected, forming an upper shielding cavity and / or a lower shielding cavity between them and the circuit board.

7. The light indicator system for a magnetic resonance device as claimed in claim 6, characterized in that At least one side of the circuit board has a plurality of isolation ribs distributed thereon, and the isolation ribs, the first shielding layer and the shielding ribs correspond one-to-one to form the upper shielding chamber and / or the lower shielding chamber.

8. The light indicator system for a magnetic resonance device as claimed in claim 7, characterized in that The shielding rib has a protrusion on the surface facing the circuit board, and the width of the protrusion is smaller than the width of the shielding rib. Alternatively, the isolation rib has a protrusion on the surface facing the shielding housing, and the width of the protrusion is smaller than the width of the isolation rib.

9. The light indicator system for a magnetic resonance device of claim 7, wherein, The upper shielding shell, the lower shielding shell, the isolation rib, and the first shielding layer are electrically connected and connected to the ground wire of the circuit board.

10. The light indication system for a magnetic resonance apparatus as claimed in claim 5 or 9, characterized in that, The connection point connected to the ground wire of the circuit board is located near the power interface module of the controller.

11. The light indication system for a magnetic resonance device as claimed in claim 3, characterized in that, The circuit board includes a signal layer, a ground layer, and a power layer. The projection of the ground layer onto a first plane covers the signal layer and the power layer. The first plane is the plane on which the circuit board is located.

12. The light indication system for a magnetic resonance device as claimed in claim 11, characterized in that, The minimum distance between the edge of the grounding layer and the first shielding layer is less than the minimum distance between the edge of the signal layer and the first shielding layer, and the minimum distance between the edge of the grounding layer and the first shielding layer is less than the minimum distance between the edge of the power layer and the first shielding layer.

13. The light indicator system for a magnetic resonance device as claimed in claim 12, characterized in that The distance between the power layer and the ground layer is h1, and the minimum distance between the edge of the power layer and the edge of the ground layer is d1, where d1 ≥ 10h1.

14. The light indicator system for a magnetic resonance device of claim 12, wherein, The distance between the signal layer and the ground layer is h2, and the minimum distance between the edge of the signal layer and the edge of the ground layer is d2, where d2 ≥ 10h2.

15. The light indication system for a magnetic resonance imaging device according to claim 2, characterized in that, The functional module includes multiple interface units, and each interface unit includes a common-mode filter circuit and a high-frequency filter circuit.

16. The light indicator system for a magnetic resonance device of claim 1, wherein, The electromagnetic shielding structure further includes a second shielding shell, which is used to enclose the light source. The second shielding shell has multiple waveguide holes, each corresponding to a light source. The waveguide holes are configured to allow visible light to pass through, but not to allow electromagnetic waves outside the visible light frequency to pass through.

17. The light indicator system for a magnetic resonance device as claimed in claim 16, characterized in that The diameter range of the waveguide aperture is set to be less than 10 mm.

18. A magnetic resonance apparatus characterized by comprising: Includes a light indication system for a magnetic resonance device as described in any one of claims 1 to 17.

19. The magnetic resonance apparatus of claim 18, characterized by The light source in the lighting indicator system is installed in the front shell and / or scanning channel of the magnetic resonance device.

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