Mobile monitor for nuclear magnetic resonance room

Abstract

The utility model relates to a movable monitor for a nuclear magnetic resonance room. A mobile monitor for a nuclear magnetic resonance room comprises: an electrical module comprising a power supply and a controller; the sensor module is electrically connected with the electrical module and used for collecting monitoring data; the display module is electrically connected with the electrical module and the sensor module and used for displaying the operation interface and data collected by the sensor module; the base module is used for installing and fixing the display module, the sensor module and the electrical module; wherein the electrical module is disposed closer to the ground than the display module and the sensor module. According to the movable monitor for the nuclear magnetic resonance room, the electromagnetic compatibility of the monitor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring instruments, in particular to a mobile monitor used in a nuclear magnetic resonance room. Background Art

[0002] Magnetic resonance imaging (MRI) is a medical imaging technology widely used in medical diagnosis and research. It uses a large superconducting magnet inside the MRI device to generate a very strong constant magnetic field. Under the action of the constant magnetic field, radio frequency pulses are sent to the patient's body. The receiving coil then receives the returned attenuated signal, analyzes and reconstructs the attenuated signal, and can obtain high-resolution, high-contrast images of human tissue. It can clearly show the differences between different types of tissues, such as muscle, fat, organs and diseased tissues, thereby providing important reference information for the diagnosis and treatment process. It has important application value in the medical field.

[0003] When a patient undergoes an examination in an MRI room, a mobile monitor is needed to monitor their physiological status in real time. Due to the complex electromagnetic environment within the MRI room, the MRI equipment generates strong magnetic fields and radio frequency signals, which can interfere with surrounding electronic equipment, potentially causing instability or even complete failure, affecting their normal operation. Metal components in electronic equipment can also affect the magnetic field, disrupting its uniformity and stability, causing magnetic field deviations and affecting MRI imaging accuracy and image quality. Therefore, conventional monitors are difficult to operate safely and effectively in an MRI room and may even interfere with the normal operation of the MRI equipment. Utility Model Content

[0004] Based on this, it is necessary to provide a mobile monitor that can work normally in the strong magnetic field environment of a nuclear magnetic resonance room in order to solve the above problems.

[0005] A mobile monitor for a nuclear magnetic resonance room, comprising:

[0006] electrical modules, including power supplies and controllers;

[0007] A sensor module, electrically connected to the electrical module, for collecting monitoring data;

[0008] a display module, electrically connected to the electrical module and the sensor module, for displaying an operation interface and data collected by the sensor module;

[0009] A base module, used for mounting and fixing the display module, the sensor module and the electrical module;

[0010] The electrical module is arranged closer to the ground than the display module and the sensor module.

[0011] In one embodiment, the electrical module, the sensor module and the display module are all provided with a shell outside, and the shells are connected by threading, riveting or welding.

[0012] In one embodiment, the material of each shell includes non-ferromagnetic metal material.

[0013] In one embodiment, the non-ferromagnetic metal material includes at least one of copper, zinc, aluminum or silver.

[0014] In one embodiment, the outer surface of each shell is coated with an insulating layer.

[0015] In one embodiment, the insulating layer is made of insulating varnish.

[0016] In one embodiment, the gaps between the electrical module, the sensor module, and the display module are filled with flexible conductive material or non-ferromagnetic metal material.

[0017] In one embodiment, the flexible conductive material includes at least one of conductive cloth, conductive foam and conductive rubber.

[0018] In one embodiment, a conductive member is further included, and the conductive member is arranged between the base module and the ground, and is used to form an electrical connection between the mobile monitor and the ground.

[0019] In one embodiment, the conductive member includes a conductive caster.

[0020] The above-mentioned mobile monitor for the nuclear magnetic resonance room, wherein the electrical module includes a power supply and a controller, which can provide the monitor with the power required for operation and manage and coordinate the operation of each module; the sensor module is electrically connected to the electrical module, and is used to collect monitoring data, and can monitor the patient's status in real time based on the monitoring data; the display module is electrically connected to the electrical module and the sensor module, and is used to display the operation interface and the data collected by the sensor module, so as to facilitate medical staff to monitor and evaluate the patient's status; the base module is used to install and fix the display module, sensor module and electrical module; wherein, the electrical module is closer to the ground than the display module and the sensor module, which helps to lower the center of gravity of the monitor, enhance stability, reduce the possibility of tipping, and can also enhance the grounding effect, increase the distance between the electrical module and the nuclear magnetic resonance equipment, reduce the cable length, and thus improve the electromagnetic compatibility of the monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic structural diagram of a mobile monitor provided in one embodiment of the present application;

[0023] Figure 2 A schematic diagram of a connection method of a mobile monitor provided in one embodiment of the present application;

[0024] Figure 3 A schematic diagram of the connector of a mobile monitor provided in one embodiment of the present application.

[0025] To make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the accompanying symbols are explained as follows:

[0026] 10: Display module, 20: Sensor module, 30: Column module, 40: Storage module, 50: Electrical module, 60: Base module, 61: Conductive caster, 100: Conductive part. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] Electromagnetic compatibility generally refers to the fact that various electronic devices in the same electromagnetic environment can work normally without interfering with each other, achieving a coexistence state. Therefore, electromagnetic compatibility includes two aspects. On the one hand, electronic equipment is required to minimize the electromagnetic interference to the external environment; on the other hand, electronic equipment cannot be too sensitive to the electromagnetic interference of the external environment. When a patient is examined in a nuclear magnetic resonance room, a mobile monitor is required to monitor the patient in real time. Since the spatial electromagnetic environment in the nuclear magnetic resonance room is relatively complex, the design requirements for the electromagnetic compatibility of the monitor are relatively high. The structural design of ordinary monitors is unreasonable, and they are greatly interfered by nuclear magnetic resonance equipment, and the electromagnetic compatibility of the monitor is difficult to guarantee. Therefore, the present application provides a mobile monitor for a nuclear magnetic resonance room, which realizes the requirements of normalized and real-time monitoring of patients with a monitor in the nuclear magnetic resonance room by improving the electromagnetic compatibility of the monitor. See Figure 1 FIG1 shows a schematic structural diagram of a mobile monitor in an embodiment of the present invention. The mobile monitor for a nuclear magnetic resonance room provided by the present invention in an embodiment includes:

[0034] Electrical module 50, including a power supply and a controller;

[0035] A sensor module, electrically connected to the electrical module 50, for collecting monitoring data;

[0036] A display module 10, electrically connected to the electrical module 50 and the sensor module, for displaying an operation interface and data collected by the sensor module 20;

[0037] A base module 60 is used to install and fix the display module 10, the sensor module and the electrical module 50;

[0038] The electrical module 50 is disposed closer to the ground than the display module 10 and the sensor module.

[0039] The power supply provides a stable and reliable power supply for the entire monitor and may include components such as an AC or DC input power supply, a power converter, a battery, a power management circuit, and a filter. The controller manages and coordinates all functions and modules of the monitor and may include components such as a central processing unit, memory, an interface controller, a data acquisition module, an operating system, and a user interface. The sensor module collects various physiological data from the patient and transmits this data to the electrical module 50 for processing and analysis. It may include an electrocardiogram (ECG) sensor, a blood oxygen saturation (O2) sensor, a blood pressure sensor, a temperature sensor, a respiration sensor, and other sensors to collect different physiological parameters. It may also include components such as signal conditioning circuits, data transmission interfaces, and cables. The display module 10 is a component used to present an operational interface and display various monitoring data. It intuitively presents collected physiological data to medical personnel and includes components such as a display screen, a graphics processor, and a user input interface. It can be mounted on the front panel of the monitor using screws, clips, or a bracket. The display module 10 should be at a height that is convenient for medical personnel to view and operate. The display screen may be a liquid crystal display (LCD), an organic light-emitting diode (OLED), or a capacitive touchscreen. The graphics processor processes display data and graphics and displays the data and interface. The user input interface is used to enable medical staff to interact with the monitor to operate and set up, and may include structures such as buttons, knobs, or touch screens. The base module 60 is used to provide structural support and stability for each sensor module 20. The base module 60 may be made of metal or high-strength plastic to ensure structural strength. A counterweight may be installed if necessary. Casters may be installed on the base module 60 for easy movement. The casters may be provided with a locking mechanism to lock the casters when the device is in use to prevent the monitor from being displaced. In addition, the mobile monitor may also include a storage module 40 for placing medical supplies and monitor accessories. The storage module 40 may include structures such as drawers, trays, brackets, or hooks. The reasonable structural layout of the mobile monitor can significantly improve the electromagnetic compatibility of the monitor. Such as Figure 1The mobile monitor shown is composed, from top to bottom, of a display module 10, a sensor module 20, a column module 30, a storage module 40, an electrical module 50, and a base module 60. The column module 30 can be sized according to the dimensions of the other modules to control the height of the display module 10 to a convenient position for operation. The power supply and circuitry of a monitor are typically the primary source and recipient of electromagnetic interference. They generate electromagnetic radiation during operation and are also susceptible to electromagnetic interference from magnetic resonance imaging equipment. Placing sensitive components such as the power supply, circuitry, and interference sources as close to the ground as possible can reduce their antenna effect. The ground can also shield some electromagnetic interference, shorten the radiation path, and reduce the area of ​​sensitive components exposed to strong magnetic fields, thereby reducing interference to the monitor and improving its electromagnetic compatibility. The power supply module is typically heavy, so placing these components close to the ground can also lower the monitor's center of gravity and improve its stability. The various electronic components can be connected by cables. The cables can be twisted pair or coaxial cables to reduce electromagnetic interference and improve the stability of signal transmission. The braided metal mesh or aluminum foil shielding layer can be wrapped around the outside of the wire harness to form a shielding layer to reduce the interference of the magnetic field of the MRI equipment on the monitor's signal.

[0040] The above-mentioned mobile monitor for the nuclear magnetic resonance room, wherein the electrical module 50 includes a power supply and a controller, which can provide the monitor with the power required for operation and manage and coordinate the operation of each module; the sensor module is electrically connected to the electrical module 50, and is used to collect monitoring data, and can monitor the patient's status in real time based on the monitoring data; the display module 10 is electrically connected to the electrical module 50 and the sensor module, and is used to display the operation interface and the data collected by the sensor module 20, so as to facilitate medical staff to monitor and evaluate the patient's status; the base module 60 is used to install and fix the display module 10, the sensor module and the electrical module 50; wherein, the electrical module 50 is set closer to the ground than the display module 10 and the sensor module, which helps to lower the center of gravity of the monitor, enhance stability, reduce the possibility of tipping, and can also enhance the grounding effect, increase the distance between the electrical module 50 and the nuclear magnetic resonance equipment, reduce the cable length, and thus improve the electromagnetic compatibility of the monitor.

[0041] Figure 2 A schematic diagram showing the connection method of a mobile monitor provided in one embodiment of the present application is shown; Figure 2As shown, in one embodiment, the electrical module 50, the sensor module 20 and the display module 10 are all provided with a shell on the outside, and the shells are connected by threaded connection, riveting or welding. Welding refers to the process of heating two or more metal parts to the melting point and combining them together in a molten state. Processes such as threaded fastening, riveting and welding can provide good physical electrical connections and can maintain a certain clamping force for a long time. The shell is used to accommodate and fix various components and is made of non-ferromagnetic materials, such as metal materials such as aluminum alloy, or plastic, carbon fiber, etc. If the material used to prepare the shell itself does not have electromagnetic shielding function, a shielding layer made of metal materials such as copper can also be provided. The waterproof and dustproof level of the shell should be higher than IP65 or higher to meet the cleaning requirements of the medical environment. As Figure 2 As shown, the contact surface between the two metal shells should be smooth, clean, and free of any external impurities (such as dirt and dust) and non-conductive film layers (such as oil film and insulating paint).

[0042] In one embodiment, the shells are made of non-ferromagnetic metal materials. Non-ferromagnetic metal materials refer to metal materials that do not exhibit significant magnetism in an external magnetic field, such as aluminum, copper, nickel, titanium, and zinc. Non-ferromagnetic metal materials can reduce magnetic interference caused by magnetic fields on electronic components within the device, thereby improving the electromagnetic compatibility of the monitor. They also have long-term stability and can operate for extended periods in an MRI environment, thereby reducing the monitor's reliability and maintenance costs.

[0043] In one embodiment, the non-ferromagnetic metal material includes at least one of copper, zinc, aluminum, or silver. The electronic circuit of the mobile monitor should be well wrapped by the metal shield to form a closed box. The seams can be configured as overlapping structures to increase the contact area. To achieve a good shielding effect, the size and number of openings should be minimized as much as possible. Openings should only be made in necessary locations, such as interfaces, buttons, and display screens. The size of the openings should be as small as possible while meeting minimum operability and functional requirements. For example, the openings of interfaces should fit the interface size as closely as possible to avoid unnecessary gaps. To meet heat dissipation requirements, the heat dissipation ports can be configured in a honeycomb shape to provide both heat dissipation and shielding. The closed box formed by the metal shield can significantly improve the electromagnetic compatibility of the monitor. The metal shield should preferably be made of good conductors, such as non-ferromagnetic metal materials such as copper, zinc, and aluminum. To achieve better shielding effectiveness, the surface of the shield can be silver-plated or multi-layer shielding can be used.

[0044] In one embodiment, the outer surface of each housing is coated with an insulating layer. Coating the outer surface of the housing with an insulating layer can improve safety, reduce electromagnetic interference from the monitor device to the MRI device, ensure imaging quality of the MRI device, and protect the monitor from strong magnetic fields and radio frequency interference generated by the MRI device, thereby improving the monitor's reliability. The insulating layer can be made of materials such as epoxy resin, polyimide, polyurethane, silicone rubber, or polytetrafluoroethylene.

[0045] In one embodiment, the insulating layer is made of insulating varnish. Insulating varnish is a coating applied to the surface of electrical equipment or components to provide electrical insulation, mechanical protection, and shielding. Varieties include acrylic varnish, epoxy varnish, and polyurethane varnish. The specific type of insulating varnish can be selected based on factors such as the actual temperature and humidity range in the MRI room.

[0046] In one embodiment, the gaps between the electrical module 50, sensor module 20, and display module 10 are filled with a flexible conductive material or a non-ferromagnetic metal material. A flexible conductive material refers to a material that is both electrically conductive and flexible. It can be made of conductive particles, such as metal particles, carbon nanotubes, or graphene, dispersed in a flexible matrix, such as a polymer, rubber, or elastomer. Good physical electrical connections should be maintained between the housings of the individual components within each module of the mobile monitor. A low-impedance ground wire can be used to connect the housings of all components and modules to a common ground point to ensure consistent electrical potential and avoid interference caused by potential differences. For removable housing components, effective structural measures should be adopted. For example, galvanized or nickel-plated screws and bolts can be used to ensure good electrical conductivity. Screws and bolts can be arranged appropriately to ensure uniform tightening while reducing contact resistance. Conductive materials, such as metal shrapnel or conductive foam, can be added to the joints between the housing components to enhance contact and ensure continuity of electrical contact between the housing gaps.

[0047] In one embodiment, the flexible conductive material includes at least one of conductive cloth, conductive foam and conductive rubber. Figure 3 This is a schematic diagram of the connector of a mobile monitor provided in one embodiment of the present application. Figure 3 As shown, the part 100 arranged between adjacent sensor modules 20 on the monitor is made of a flexible conductive material. While maintaining conductive properties, the part 100 also has a certain mechanical flexibility and stretchability, so that it can be used in gaps of different sizes, thereby improving the flexibility of the assembly process, making up for the gaps caused by the manufacturing tolerances of parts, improving assembly accuracy, and establishing a good physical electrical connection between metal shells or metal parts, thereby establishing a low-resistance path for current flow between the two metal parts, thereby reducing the potential difference generated between the two metal parts, thereby reducing the electromagnetic interference caused by the potential difference.

[0048] In one embodiment, the monitor further includes a conductive member 100 disposed between the base module 60 and the ground, for forming an electrical connection between the mobile monitor and the ground. The grounding system formed by the conductive member 100 and the ground helps shield and reduce electromagnetic interference, mitigates the impact of electromagnetic noise from MRI equipment on the monitor, and prevents static electricity accumulation, thereby improving the safety and reliability of the monitor.

[0049] In one embodiment, the conductive member 100 includes a conductive caster 61. The number of conductive casters 61 can be set according to actual needs. Installing multiple conductive casters 61 can achieve multi-point grounding, thereby better improving the electromagnetic compatibility performance of the monitor. There must be good physical electrical connections between the modules of the mobile monitor. The entire mobile monitor can form good physical electrical contact with the ground through the conductive casters 61 at the bottom. The conductive casters 61 can be universal wheels. Good physical electrical contact refers to the establishment of a low-resistance path for current flow between two metal objects, which can reduce the potential difference between the two metal objects and avoid electromagnetic interference caused by the potential difference. When the monitor is working, medical staff are less likely to be in danger of electric shock when touching the metal part of the shell; at the same time, it also provides a potential reference for the internal electronic circuit to ensure the stability of the monitor.

[0050] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A mobile monitor for a nuclear magnetic resonance room, characterized in that: The mobile monitor comprises: electrical modules, including power supplies and controllers; A sensor module, electrically connected to the electrical module, for collecting monitoring data; a display module, electrically connected to the electrical module and the sensor module, for displaying an operation interface and data collected by the sensor module; A base module, used for mounting and fixing the display module, the sensor module and the electrical module; The electrical module is arranged closer to the ground than the display module and the sensor module.

2. The mobile monitor according to claim 1, wherein: The electrical module, the sensor module and the display module are all provided with shells on their exteriors, and the shells are connected by screw connection, riveting or welding.

3. The mobile monitor according to claim 2, characterized in that: The shells are made of non-ferromagnetic metal materials.

4. The mobile monitor according to claim 3, characterized in that: The non-ferromagnetic metal material is copper, zinc, aluminum or silver.

5. The mobile monitor according to claim 2, characterized in that: The outer surface of each shell is coated with an insulating layer.

6. The mobile monitor according to claim 5, characterized in that: The insulating layer is prepared from insulating varnish.

7. The mobile monitor according to claim 1, wherein: The gaps between the electrical module, the sensor module and the display module are filled with flexible conductive material or non-ferromagnetic metal material.

8. The mobile monitor according to claim 7, characterized in that: The flexible conductive material includes at least one of conductive cloth, conductive foam and conductive rubber.

9. The mobile monitor according to claim 1, wherein: It also includes a conductive member, which is arranged between the base module and the ground and is used to form an electrical connection between the mobile monitor and the ground.

10. The mobile monitor according to claim 9, characterized in that: The conductive member includes a conductive caster.

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