A diagnostic bed split medical magnetic resonance imaging system

Abstract

The utility model provides a kind of diagnostic bed split type medical magnetic resonance imaging system, including mobile mainframe equipment cabinet and mobile bed body frame, the top of mobile mainframe equipment cabinet is provided with magnet frame, shielding cover is movably installed on mobile bed body frame, and electromagnetic shielding closure is realized with bed body frame by first convex diamond concave convex structure, bed body is slidably installed on mobile bed body frame, and bed plate and head support are installed on bed body;Mobile mainframe cabinet and mobile bed body frame are connected and separated quickly by detachable structure.The system uses modular structure design, the equipment has good mobility and flexibility, shielding cover and support structure cooperate to improve imaging success rate, dismounting structure supports releasing bed body in the case of need, is beneficial to patient rapid separation, suitable for different scenarios: emergency rescue, patient inconvenient movement and space limited environment under the magnetic resonance imaging demand.

Description

Technical Field

[0001] This utility model relates to the field of medical magnetic resonance imaging systems, specifically to a diagnostic bed-type medical magnetic resonance imaging system. Background Technology

[0002] Currently, most mainstream magnetic resonance imaging (MRI) systems on the market adopt a fixed structure. These devices typically require a dedicated magnetically shielded room to block external electromagnetic interference and ensure image quality. However, dedicated magnetically shielded rooms are not only expensive and complex to install, but also have strict requirements for the site environment, limiting the deployment flexibility and application scope of the equipment. Furthermore, due to their large size and enclosed structure, fixed MRI equipment cannot be quickly deployed or moved in the event of a sudden medical emergency during scanning, such as patient discomfort or the need for emergency treatment. This can easily lead to difficulties in patient evacuation, increasing medical risks and potentially damaging the equipment itself, resulting in significant economic losses. Therefore, existing fixed MRI systems have significant shortcomings in terms of flexibility, safety, and adaptability. There is an urgent need for a new type of MRI equipment with a more flexible structure, higher safety, and no reliance on a dedicated shielded room to meet diverse application needs such as emergency medical care, patient mobility issues, and situations with variable or limited space. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a split-type medical magnetic resonance imaging system with a diagnostic bed, integrating the bed body and shielding cover into a single design. This solves the shielding problem, the problem of rapid patient evacuation, the problem of patient mobility, and the problem of large space occupation.

[0004] This utility model is achieved through the following technical solution: a split-type medical magnetic resonance imaging system for diagnostic beds, comprising:

[0005] A mobile host equipment cabinet, wherein a magnet frame is provided on the top of the mobile host equipment cabinet;

[0006] A movable bed frame, on which a shielding cover is movably mounted, and a first convex-concave-convex structure is provided between the shielding cover and the movable bed frame; a bed body is slidably mounted on the movable bed frame, and a bed board and headrest are mounted on the bed body.

[0007] The mobile main unit cabinet and the mobile bed frame are connected by a detachable structure.

[0008] As a preferred technical solution, a permanent magnet, a gradient coil, an RF receiving coil, and an RF transmitting coil are installed on the magnet frame.

[0009] As a preferred technical solution, the mobile host equipment cabinet is equipped with a gradient power amplifier, an RF power amplifier, a pre-receiving unit, a rechargeable battery, a spectrometer, and a power control unit. The gradient coil, RF transmitting coil, RF receiving coil, spectrometer, gradient power amplifier, RF power amplifier, pre-receiving unit, power control unit, and battery pack are electrically connected. The battery pack is a rechargeable battery, and the battery pack is converted into the voltage required by the device through the power control unit.

[0010] As a preferred technical solution, the gradient coil is embedded in the permanent magnet body, and the receiving coil and the transmitting coil are mounted on the gradient coil.

[0011] As a preferred technical solution, the bottom of the bed frame is provided with a guide rail, and the bed frame slides along the guide rail.

[0012] As a preferred technical solution, electric push rods are also provided on both sides of the mobile bed frame, and the power end of the electric push rods is connected to the shielding cover.

[0013] As a preferred technical solution, both the bottom of the mobile main unit cabinet and the mobile bed frame are equipped with casters.

[0014] As a preferred technical solution, the detachable structure adopts a snap-on detachable structure.

[0015] As a preferred technical solution, the first convex-rhombus structure includes a convex rhombus disposed at the bottom of the shield and a groove disposed on the moving bed frame. When the shield is closed, the convex rhombus is snapped into the groove.

[0016] As a preferred technical solution, the magnet frame is aligned and connected to the bed frame through a second convex-concave-convex structure.

[0017] The beneficial effects of this utility model are as follows: First, the system adopts a separate design of mobile main equipment cabinet and mobile bed frame, and is connected by a detachable structure, which makes the system as a whole have good mobility and site adaptability, significantly reduces the dependence on fixed magnetic shielding room, reduces the restrictions of equipment deployment on site structure, facilitates rapid deployment and multi-scenario application, especially in scenarios where patients are inconvenient to move.

[0018] Secondly, the mobile bed frame integrates a shielding cover, and through the first convex diamond groove structure set between the shielding cover and the mobile bed frame, effective electromagnetic shielding is achieved in the closed state, which improves imaging quality, avoids external interference, and saves the construction cost of the external shielding room required by traditional magnetic resonance systems.

[0019] Furthermore, the system structure supports emergency evacuation operations. When a patient experiences a sudden emergency during the scanning process, the bed frame can be pulled out within seconds by quickly opening the snap-on structure and shielding cover, evacuating the patient to the magnetic field safety zone. This significantly improves the efficiency of patient treatment response and the system's emergency response capabilities.

[0020] In addition, both the mobile main unit cabinet and the mobile bed frame are equipped with casters at the bottom, which improves the overall mobility of the equipment; electric push rods are used to control the automatic opening and closing of the shielding cover, simplifying the operation process; guide rails combined with the sliding bed design help to facilitate the smooth entry and exit of patients; and the second convex-concave-convex structure between the magnet frame and the mobile bed frame ensures scanning accuracy and structural stability, guaranteeing the safety and reliability of the system operation. 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 structure of the mobile bed frame and shielding cover of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the magnet frame of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the mobile host equipment cabinet of this utility model;

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

[0027] 2. Mobile main unit cabinet; 1. Magnet frame; 5. Mobile bed frame; 7. Shielding cover; 10. Bed; 13. Permanent magnet; 12. Gradient coil; 14. RF receiving coil; 15. RF transmitting coil; 16. Gradient power amplifier; 17. RF power amplifier; 19. Pre-receiving unit; 21. Rechargeable battery; 18. Spectrometer; 20. Power control unit; 11. Guide rail; 6. Electric push rod; 3. Universal wheel; 4. Snap-on disassembly structure; 9. Groove; 8. Rhombus. 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 split-type medical magnetic resonance imaging system for diagnostic beds, comprising a mobile main unit cabinet 2 and a mobile bed frame 5.

[0031] A magnet frame 1 is fixedly installed on the top of the mobile host equipment cabinet 2. The magnet frame 1 is a frame structure on which multiple core components required for magnetic resonance imaging are integrated and installed, including a permanent magnet 13, a gradient coil 12, a radio frequency receiving coil 14, and a radio frequency transmitting coil 15.

[0032] The permanent magnet 13 is located in the central region of the magnet frame 1 to generate a stable main magnetic field. The gradient coil 12 is embedded inside the permanent magnet 13 and is in close contact with the permanent magnet 13 to generate a linearly changing gradient magnetic field in space, thereby realizing the positioning of the object under test in spatial coordinates. The receiving coil and the transmitting coil are installed on the outer surface of the gradient coil 12. The radio frequency transmitting coil 15 is responsible for transmitting radio frequency excitation pulse signals to the object under test, while the radio frequency receiving coil 14 is used to collect the radio frequency signals responded by the object under test and transmit them to the subsequent receiving and processing unit.

[0033] Below the magnet frame 1 is a mobile host equipment cabinet 2. This cabinet is a shell structure made of metal or composite materials, and its internal space is used to accommodate and fix multiple electrical control and signal processing modules. Specifically, the mobile host equipment cabinet contains, in sequence, functional modules such as gradient power amplifier 16, radio frequency power amplifier 17, pre-receiver unit 19, spectrometer 18, power control unit 20, and battery pack. The functional modules are interconnected through standard electrical connections.

[0034] Among them, gradient power amplifier 16 is used to drive gradient coil 12 to generate the required magnetic field change; radio frequency power amplifier 17 is used to drive transmitting coil to output excitation signal; pre-receiving unit 19 receives weak signal from receiving coil and performs preliminary amplification; spectrometer 18 is used to collect, process and analyze received magnetic resonance signal; power control unit 20 is connected between rechargeable battery pack 21 and each power module to convert the output voltage of battery pack to different voltage levels required by the device and provide voltage regulation protection.

[0035] The battery pack is a high-capacity rechargeable lithium battery module with functions such as cyclic charging and mobile power supply. It can maintain the system's stable operation for a long time without external power, thereby improving the equipment's independence and emergency use capability.

[0036] The mobile bed frame 5 is a rectangular three-dimensional structure used to support the bed-related components. A shielding cover 7 is movably installed on it. The shielding cover 7 is a shell structure used to form a closed magnetic resonance imaging space and to shield external electromagnetic interference.

[0037] The shielding cover 7 and the movable bed frame 5 are reliably positioned and electromagnetically closed through a first convex rhombus 8 concave-convex structure located at their joint. Specifically, the first convex rhombus 8 concave-convex structure includes several longitudinally distributed convex rhombus 8 structures at the bottom of the shielding cover 7, and correspondingly shaped grooves 9 on the movable bed frame 5. When the shielding cover 7 is closed, the convex rhombus 8 structures are embedded inside the grooves 9, forming a tightly contacting conductive connection surface, improving the overall shielding effect and ensuring the imaging area is in a stable magnetic field environment.

[0038] The upper part of the movable bed frame 5 is provided with a bed body 10. The bottom of the bed body 10 is provided with two guide rails 11. The guide rails 11 extend along the length of the bed body and are slidably connected with the movable bed frame 5, so that the bed frame 10 can move back and forth along the guide rails 11 to realize the entry and exit of the bed body.

[0039] A bed board and headrest are installed above the bed frame 10 for the patient to lie flat. The bed board is a flat and rigid support surface, equipped with padding and fixing straps to improve patient comfort and positional stability during imaging. The bed board can be slid out from under the magnet frame 1 by the operator via a slide rail to facilitate patient getting on and off the bed or emergency evacuation.

[0040] On the left and right sides of the mobile bed frame 5, there is a set of electric push rods 6. The electric push rods 6 are linear drive structures, and their power output ends are connected to the shielding cover 7 body.

[0041] During scan preparation, the electric push rod 6 drives the shield 7 to close slowly; when the scan is completed or the patient needs to be evacuated, the electric push rod 6 reverses its movement, quickly opening the shield 7. This design simplifies the operation process, improves ease of use, and avoids the cumbersome operation of manually opening and closing the shield 7.

[0042] To achieve overall system mobility, both the mobile main unit cabinet 2 and the mobile bed frame 5 are equipped with casters 3 at their bottom. The casters 3 have a locking mechanism, which can provide convenient rolling support when the equipment needs to be moved, and can also be locked when the equipment is working to keep the system stable and prevent imaging interference caused by vibration or positional displacement.

[0043] To ensure precise alignment and connection between the magnet frame 1 and the bed 10 during scanning, a second convex rhombus 8 is provided between the lower end of the magnet frame 1 and the upper part of the bed 10. This structure is similar to the first convex rhombus 8; after the convex rhombus 8 on the magnet frame 1 is inserted into the mating groove 9 on the bed frame 10, precise positioning and mechanical connection between the two frames can be achieved, ensuring that the bed aligns with the central axis of the magnet imaging after being moved into position, thus improving image acquisition quality.

[0044] Furthermore, to improve the efficiency of equipment assembly and disassembly and its emergency response capabilities, the mobile main unit cabinet 2 and the mobile bed frame 5 are connected by a snap-fit ​​assembly / disassembly structure 4. This structure, through the use of elastic snaps and mating slots, allows the two modules to be quickly aligned and fastened when needed, and easily released when needed. Operators can complete the assembly and disassembly without the use of tools. Especially in emergency situations requiring rapid evacuation of patients, simply opening the snaps allows the equipment cabinet and bed to be separated, and the bed frame 10 can be quickly pulled out, improving the system's emergency response efficiency.

[0045] 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 split-type medical magnetic resonance imaging system for diagnostic beds, characterized in that, include: Mobile host equipment cabinet (2), the top of which is provided with a magnet frame (1); A movable bed frame (5) is provided with a shield (7) movably mounted on the movable bed frame (5), and a bed body (10) is slidably mounted on the movable bed frame (5). A bed board and a headrest are mounted on the bed body (10). A snap-on disassembly structure (4) is provided between the mobile main unit cabinet (2) and the mobile bed frame (5) to allow the mobile main unit cabinet (2) and the mobile bed frame (5) to be detachably connected. Electric push rods (6) are provided on both sides of the movable bed frame (5). The power end of the electric push rods (6) is connected to the shield (7) and is used to drive the shield (7) to open or close relative to the movable bed frame (5). The first convex-diamond concave-convex structure is disposed between the shield (7) and the movable bed frame (5). The first convex-diamond concave-convex structure includes a convex diamond (8) disposed at the bottom of the shield (7) and a groove (9) disposed on the movable bed frame (5). When the shield (7) is closed, the convex diamond (8) is snapped into the groove (9). The magnet frame (1) is aligned and connected to the bed body (10) through a second convex-rhomboid structure.

2. The diagnostic bed-type split-type medical magnetic resonance imaging system according to claim 1, characterized in that: The magnet frame (1) is equipped with a permanent magnet (13), a gradient coil (12), an RF receiving coil (14), and an RF transmitting coil (15).

3. The diagnostic bed-type split-type medical magnetic resonance imaging system according to claim 2, characterized in that: The mobile host equipment cabinet (2) is equipped with a gradient power amplifier (16), a radio frequency power amplifier (17), a pre-receiving unit (19), a rechargeable battery (21), a spectrometer (18), and a power control unit (20). The gradient coil (12), the radio frequency transmitting coil (15), the radio frequency receiving coil (14), the spectrometer (18), the gradient power amplifier (16), the radio frequency power amplifier (17), the pre-receiving unit (19), the power control unit (20), and the rechargeable battery (21) are electrically connected. The rechargeable battery (21) converts the voltage required by the output device through the power control unit (20).

4. The split-type medical magnetic resonance imaging system for diagnostic beds according to claim 3, characterized in that: The gradient coil (12) is embedded in the permanent magnet (13), and the radio frequency receiving coil (14) and the radio frequency transmitting coil (15) are mounted on the gradient coil (12).

5. The diagnostic bed-type split-type medical magnetic resonance imaging system according to claim 1, characterized in that: The bottom of the bed body (10) is provided with a guide rail (11), and the bed body (10) is slidably connected to the movable bed frame (5) through the guide rail (11).

6. The split-type medical magnetic resonance imaging system for diagnostic beds according to claim 1, characterized in that: Both the mobile host equipment cabinet (2) and the mobile bed frame (5) are equipped with casters (3) at their bottoms.

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