A combined medical magnetic resonance imaging system

Abstract

This utility model relates to the field of medical magnetic resonance imaging (MRI) technology, specifically to a combined medical MRI system. The system includes a magnet unit, a mobile electronic equipment cabinet, and a stretcher bed. The magnet unit is mounted on top of the electronic equipment cabinet, and the stretcher bed is movably positioned in front of the magnet unit and can be pushed to the magnet opening for the patient to enter the MRI area. The magnet unit integrates a permanent magnet, gradient coils, a radio frequency (RF) transmitting coil, and an RF receiving coil. The gradient coil is embedded within the permanent magnet, and the RF coil is mounted on the gradient coil. The electronic equipment cabinet houses a gradient power amplifier, an RF power amplifier, a pre-receiving unit, a spectrometer, a power control unit, and a rechargeable battery pack. All functional modules are electrically connected to form a complete MRI control path. This utility model features a compact structure, high integration, and strong mobility, making it suitable for MRI applications in emergency medical care, vehicle-mounted deployment, and space-constrained environments.

Description

Technical Field

[0001] This utility model relates to an imaging device, specifically a combined medical magnetic resonance imaging system. Background Technology

[0002] Most mainstream magnetic resonance imaging (MRI) systems on the market today employ a fixed structure. These devices typically consist of multiple functional units, including a magnet system, electronic control system, and power supply system, each installed in a separate room and connected via complex cabling. This structure not only places extremely high demands on the installation environment—for example, requiring a floor with sufficient load-bearing capacity and a dedicated magnetically shielded room to isolate external electromagnetic interference—but also occupies a significant amount of space, resulting in a bulky, heavy system that cannot be moved or redeployed. Furthermore, the enclosed nature of traditional MRI equipment hinders patient monitoring and accompaniment during the scanning process, and makes it impossible to transport the equipment to residential areas or disaster relief sites.

[0003] Therefore, existing magnetic resonance imaging systems still have significant shortcomings in terms of structural integration, mobility flexibility, ease of installation, and clinical emergency adaptability. There is an urgent need to provide a new type of magnetic resonance imaging system that is highly integrated, compact in structure, easy to deploy in mobile locations, and supports multiple application scenarios, so as to improve the ease of use and safety performance of magnetic resonance equipment in complex scenarios such as primary hospitals, specialized departments, ambulances, and field medical care. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a combined medical magnetic resonance imaging system that effectively overcomes the shortcomings of existing technologies.

[0005] This utility model is achieved through the following technical solution: a combined medical magnetic resonance imaging system, comprising:

[0006] The system includes a magnet unit, a mobile electronic equipment cabinet, and a stretcher bed. The magnet frame is mounted on top of the mobile electronic equipment cabinet. The stretcher bed is movable in front of the magnet unit and can be pushed to the magnet opening to allow the patient to enter the magnetic resonance imaging area.

[0007] The magnet unit includes a permanent magnet, a gradient coil, a radio frequency transmitting coil, and a radio frequency receiving coil. The gradient coil is embedded inside the permanent magnet, and the radio frequency transmitting coil and the radio frequency receiving coil are disposed on the gradient coil.

[0008] The mobile electronic equipment cabinet is equipped with a gradient power amplifier, a radio frequency power amplifier, a pre-receiving unit, a spectrometer, a power control unit, and a rechargeable battery pack. The spectrometer, gradient power amplifier, radio frequency power amplifier, pre-receiving unit, power control unit, radio frequency transmitting coil, receiving coil, and gradient coil are electrically connected to form a magnetic resonance imaging control path.

[0009] As a preferred technical solution, the mobile electronic equipment cabinet and the magnet unit can be installed together or separately to adapt to the spatial layout requirements of different usage scenarios.

[0010] As a preferred technical solution, the rechargeable battery pack is configured to be independently powered, and the electrical energy is converted into the voltage required by each functional module through the power control unit.

[0011] As a preferred technical solution, both the mobile electronic equipment cabinet and the stretcher bed are equipped with casters at the bottom.

[0012] As a preferred technical solution, the top of the mobile electronic equipment cabinet is provided with a support structure for supporting the magnet unit, and the magnet unit can be directly fixed to the upper part of the equipment cabinet to achieve an integrated configuration.

[0013] As a preferred technical solution, a positioning structure is provided between the stretcher bed and the magnet unit to accurately align the patient's position with the central axis of the magnet during imaging.

[0014] As a preferred technical solution, the outer shell of the mobile electronic equipment cabinet is provided with an interface or bracket for mounting a laptop computer. The laptop computer is connected to the spectrometer via a network for setting magnetic resonance imaging parameters and acquiring and displaying images.

[0015] As a preferred technical solution, the magnet unit is detachably connected to the equipment cabinet, and the connection structure is equipped with a quick positioning and disassembly mechanism to facilitate rapid on-site assembly and disassembly.

[0016] As a preferred technical solution, the stretcher bed structure has a foldable support assembly, and the height after folding is aligned with the bottom of the magnet unit to accommodate the entry requirements of the magnetic resonance imaging port.

[0017] As a preferred technical solution, the equipment cabinet and magnet unit can be adapted to the interior space of an ambulance for arrangement, enabling magnetic resonance imaging in mobile emergency scenarios.

[0018] The beneficial effects of this utility model are as follows: This utility model adopts a separate design of the magnet unit and the mobile electronic equipment cabinet, which can be combined or separately arranged according to different usage scenarios, greatly improving the flexible deployment capability of the equipment. It is particularly suitable for space-constrained places or vehicle-mounted mobile medical applications. The entire equipment is supported by casters, which have good mobility and facilitate rapid on-site deployment and transportation.

[0019] The magnet unit of this invention integrates a permanent magnet, a gradient coil, an RF transmitting coil, and an RF receiving coil. The electronic equipment cabinet integrates a gradient power amplifier, an RF power amplifier, a pre-receiving unit, a spectrometer, a power control module, and a rechargeable battery pack. The overall structure is compact and the functional components are highly integrated, which effectively reduces the system size and weight, significantly reduces the requirements for the installation site, and reduces infrastructure construction costs.

[0020] This utility model's system supports parameter control and image acquisition via a laptop computer. It connects to the spectrometer via a network, enabling a user-friendly and convenient control method. The stretcher can be directly pushed into the magnet opening for imaging. It has a positioning structure to ensure imaging accuracy and a foldable structure for easy storage and vehicle deployment, meeting the needs of rapid clinical treatment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the mobile electronic equipment cabinet of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal cross-section of the magnet unit of this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Magnet unit; 2. Mobile electronic equipment cabinet; 5. Stretcher bed; 13. Permanent magnet; 14. Gradient coil; 15. RF transmitting coil; 16. RF receiving coil; 7. Gradient power amplifier; 11. RF power amplifier; 10. Pre-receiving unit; 9. Spectrometer; 8. Power control unit; 12. Rechargeable battery pack; 3. Casters; 6. Laptop computer; 4. Magnet opening. Detailed Implementation

[0028] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0029] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0030] like Figures 1-4 As shown, the present invention provides a combined medical magnetic resonance imaging system with a compact structure, good mobility and adaptability to multiple scenarios. It can be deployed and used in indoor shielded rooms, mobile ambulances and other environments with limited space, effectively solving the problems of traditional magnetic resonance equipment such as large size, complex installation, difficult movement and long deployment cycle.

[0031] The system mainly consists of three parts: magnet unit 1, mobile electronic equipment cabinet 2, and stretcher bed 5. Through reasonable arrangement and modular connection design, each part can be combined and installed to form an integrated system, or it can be separated and placed according to actual use needs.

[0032] Magnet unit 1 is a key component of this system used to provide the main magnetic field and for signal excitation and reception. It contains a permanent magnet 13, a gradient coil 14, an RF transmitting coil 15, and an RF receiving coil 16. The permanent magnet 13 is made of high-performance rare-earth permanent magnet material, which has the advantage of high stability and can provide a stable main magnetic field environment under the premise of limited size.

[0033] The gradient coil 14 is embedded inside the permanent magnet 13. Its function is to generate a spatially relevant linear magnetic field to achieve spatial positioning of the image. The coil is manufactured using a high-density winding process and undergoes structural solidification treatment to improve its vibration resistance. The radio frequency transmitting coil 15 and the receiving coil together constitute the magnetic resonance signal transmitting and acquiring device. They are respectively installed outside the gradient coil 14 and arranged in a coaxial symmetrical structure to ensure uniform distribution of the magnetic resonance imaging signal field and improve image quality.

[0034] The transmitting coil is used to transmit excitation pulses of a specific frequency to the human body, while the receiving coil is used to sense and collect echo signals generated by human tissue. These signals are amplified and demodulated by subsequent circuits to finally form image data that can be used for diagnosis.

[0035] The magnet unit 1 is fixedly installed on the top of the mobile electronic equipment cabinet 2 via a lower support structure. The top of the cabinet has a pre-installed support structure that matches the structure of the magnet unit 1, which can stably support the magnet unit 1. The installation method adopts a detachable design, which facilitates transportation and on-site assembly. At the same time, the provided quick positioning and disassembly mechanism greatly improves the installation efficiency while ensuring positioning accuracy.

[0036] The top of the equipment cabinet and the magnet unit 1 are connected by a dual structure of mechanical slots and screws for positioning. With the help of positioning pins and screws, the structural stability and shock resistance after assembly can be ensured.

[0037] The mobile electronic equipment cabinet 2 is the core unit for power supply and signal control of the system. It integrates key functional modules such as gradient power amplifier 7, radio frequency power amplifier 11, pre-receiver unit 10, spectrometer 9, power control unit 8, and rechargeable battery pack 12.

[0038] Gradient power amplifier 7 is connected to gradient coil 14 and is used to drive gradient coil 14 to output rapidly changing magnetic field signals according to the imaging protocol; radio frequency power amplifier 11 is connected to radio frequency transmitting coil 15 and is used to provide excitation pulses with sufficient energy.

[0039] The pre-receiving unit 10 is connected to the receiving coil and is used to perform low-noise amplification of the received weak radio frequency signal to ensure signal quality; the spectrometer 9 module is used to acquire, demodulate, process and output the spectrum of the received signal, and is the core processing unit for realizing magnetic resonance imaging; the power control unit 8 is used to distribute and regulate the output voltage of the battery pack according to the voltage level of each module, and has overload protection, short circuit protection and other functions.

[0040] All the above modules are interconnected through standard electrical interfaces to form a complete magnetic resonance imaging signal path, and the overall anti-interference capability is improved through EMC-compatible design.

[0041] The rechargeable battery pack 12 uses a high-energy-density lithium battery module, which has a long battery life and supports independent power supply operation in the absence of an external power source.

[0042] The battery pack incorporates temperature monitoring and equalization protection circuits to ensure safe and stable operation of the system under varying ambient temperatures, making it particularly suitable for mobile medical scenarios such as vehicle-mounted, field, and emergency applications. Under normal operating conditions, the power control unit 8 automatically allocates power resources based on the power consumption of different modules while simultaneously monitoring the overall power load.

[0043] The stretcher bed 5 is used to carry patients for MRI examinations. Its structural design takes into account the comprehensive needs of pushing, transferring, and positioning in clinical applications. The front end of the stretcher bed 5 can precisely align with the magnet opening 4. Through the provided guide rails and limiting structures, the trajectory control during advancement and withdrawal is realized. During imaging positioning, the positioning structure realizes accurate alignment of the patient's head or target area with the MRI imaging center.

[0044] The stretcher bed 5 has a foldable support assembly at the bottom, which uses a hinged connection structure and can be folded and stored when needed, so that the overall height of the stretcher bed 5 is aligned with the bottom of the magnet unit 1, adapting to the height requirements of the magnetic resonance channel and facilitating the sliding of the patient into the imaging area. The bed surface is equipped with a soft padding layer and a fixing strap device to improve patient comfort and prevent image blurring caused by movement during imaging.

[0045] To facilitate on-site operation and overall system mobility, both the mobile electronic equipment cabinet 2 and the stretcher bed 5 are equipped with casters 3 at their bottom. The casters 3 are quiet, wear-resistant, and have brake locking functions, allowing for smooth movement under various ground conditions and stable positioning during equipment operation to prevent positional deviations from interfering with imaging. The cabinet's outer shell is designed with interfaces or brackets for mounting laptops 6, supporting standard RJ45 network ports or custom rail mounting methods, facilitating operation of the control software by medical personnel.

[0046] The laptop computer 6 communicates with the spectrometer 9 via a wired network, receives image data in real time and displays it visually, and can also set scanning parameters, adjust pulse sequences and record the scanning process.

[0047] In ambulance deployment scenarios, the system can separate the magnet unit 1 and the equipment cabinet and arrange them in different locations inside the vehicle. The stretcher bed 5 can be directly connected to the ambulance's dedicated transfer system. After folding, its height matches the magnet imaging port, achieving a seamless connection after loading into the vehicle. In vehicle-mounted mode, the battery pack provides power to enable magnetic resonance imaging tasks without relying on external mains power, effectively improving image examination capabilities and rescue efficiency in mobile emergency scenarios.

[0048] This invention provides a highly integrated, adaptable, and flexibly deployable modular medical magnetic resonance imaging (MRI) system through the integrated design of the magnet structure, electronic control module, power supply, and patient pushing mechanism. It can be widely used in various medical scenarios such as bedside examinations, mobile imaging in emergency vehicles, mobile clinics in remote areas, and disaster emergency sites. This system overcomes the limitations of traditional MRI equipment in terms of size, weight, power supply, and operating environment, possessing significant practicality and promotional value.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A combined medical magnetic resonance imaging system, characterized by include: The system includes a magnet unit (1), a mobile electronic equipment cabinet (2), and a stretcher bed (5). The magnet unit is mounted on top of the mobile electronic equipment cabinet (2). The stretcher bed (5) is movable in front of the magnet unit (1) and can be pushed to the magnet opening (4) to allow the patient to enter the magnetic resonance imaging area. The magnet unit (1) includes a permanent magnet (13), a gradient coil (14), a radio frequency transmitting coil (15), and a radio frequency receiving coil (16). The gradient coil (14) is embedded inside the permanent magnet (13), and the radio frequency transmitting coil (15) and the radio frequency receiving coil (16) are disposed on the gradient coil (14). The mobile electronic equipment cabinet (2) is equipped with a gradient power amplifier (7), a radio frequency power amplifier (11), a pre-receiving unit (10), a spectrometer (9), a power control unit (8), and a rechargeable battery pack (12). The spectrometer (9), gradient power amplifier (7), radio frequency power amplifier (11), pre-receiving unit (10), power control unit (8), radio frequency transmitting coil (15), receiving coil, and gradient coil (14) are electrically connected to form a magnetic resonance imaging control path.

2. The combined medical magnetic resonance imaging system of claim 1, characterized in that: The mobile electronic equipment cabinet (2) and the magnet unit (1) can be installed together or separately to adapt to the spatial layout requirements of different usage scenarios.

3. The combined medical magnetic resonance imaging system of claim 1, characterized in that: The rechargeable battery pack (12) is configured to be independently powered, and the electrical energy is converted into the voltage required by each functional module through the power control unit (8).

4. The combined medical magnetic resonance imaging system of claim 1, characterized by: The bottom of both the mobile electronic equipment cabinet (2) and the stretcher bed (5) is equipped with casters (3).

5. The combined medical magnetic resonance imaging system of claim 1, characterized by: The mobile electronic equipment cabinet (2) is provided with a support structure on the top for supporting the magnet unit (1), and the magnet unit (1) can be directly fixed to the upper part of the equipment cabinet to achieve an integrated configuration.

6. The combined medical magnetic resonance imaging system of claim 1, characterized by: A positioning structure is provided between the stretcher bed (5) and the magnet unit (1) for accurately aligning the patient's position with the central axis of the magnet during imaging.

7. The combined medical magnetic resonance imaging system according to claim 1, characterized in that: The mobile electronic equipment cabinet (2) has an interface or bracket for installing a laptop computer (6) on its outer shell. The laptop computer (6) is connected to the spectrometer (9) via a network for setting magnetic resonance imaging parameters and acquiring and displaying images.

8. The combined medical magnetic resonance imaging system of claim 1, characterized by: The magnet unit (1) is detachably connected to the equipment cabinet, and the connection structure is equipped with a quick positioning and disassembly mechanism to facilitate quick assembly and disassembly on site.

9. The combined medical magnetic resonance imaging system of claim 1, characterized by: The stretcher bed (5) has a foldable support assembly, and when folded, its height is aligned with the bottom of the magnet unit (1) to accommodate the entry requirements of the magnetic resonance imaging port.

10. The combined medical magnetic resonance imaging system of claim 1, characterized by: The equipment cabinet and magnet unit (1) can be adapted to be placed in an ambulance after being folded up on a stretcher bed, so as to realize magnetic resonance imaging in mobile emergency scenarios.

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