Magnetic resonance imager magnet structure for optimizing scanning efficiency
By setting up a shielding device and a sliding device in the MRI device equipment, the problem of being affected by external interference signals during the imaging process of the equipment is solved, and the patient's comfort is improved, achieving a more efficient and clearer imaging effect.
Patent Information
- Application Number
- CN202421565542.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The existing MRI equipment is susceptible to external interference signals during the imaging process, resulting in a decrease in the accuracy and clarity of imaging. At the same time, the bed surface is hard and the patient's comfort is poor.
A magnetic structure of the magnetic resonance imager that optimizes scanning efficiency is designed, including a shielding device is provided on the left and right ends of the main device, and effectively shielding external interference signals through a clamp plate, a shielding ring plate, a shielding plate and a shielding unit module; at the same time, a sliding device composed of a driving motor and a screw is used to accurately control the movement of the bed and add soft pads to the bed to improve the comfort of the patient.
Effectively shield external interference signals, improve imaging accuracy and clarity, shorten scanning preparation time, improve overall scanning efficiency, and improve patient comfort through soft pads, reducing discomfort caused by lying on hard surfaces for a long time.
Smart Images
Figure CN222825661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuclear magnetic resonance imaging, in particular to a magnetic resonance imaging device magnet structure for optimizing scanning efficiency. Background Art
[0002] Magnetic resonance imaging is a non-invasive medical imaging technology that uses strong magnetic fields and radio waves to generate detailed images of the internal structures of the human body. In MRI machines, magnets are key components for generating strong magnetic fields, and their performance directly affects the quality and efficiency of imaging. With the continuous development of medical technology, the requirements for the resolution, scanning speed and image quality of MRI are getting higher and higher. In order to meet these needs, researchers have been working to optimize the structure of MRI magnets;
[0003] There are at least the following disadvantages in the use of the existing magnetic resonance imaging device: 1. The existing magnetic resonance imaging device needs to collect the signal fed back by the human body through the receiving coil during the imaging process, and then process the received signal to perform imaging. When there are interference signals in the environment where the magnetic resonance imaging device is located, it will affect the accuracy and clarity of the imaging of the magnetic resonance imaging device; 2. During the use of the existing magnetic resonance imaging device, people need to lie on the bed and be sent into the magnetic resonance imaging device for scanning. Since the surface of the bed is hard and the comfort is poor, we have introduced a new magnetic resonance imaging device magnet structure that optimizes the scanning efficiency. Utility Model Content
[0004] The main purpose of the utility model is to provide a magnetic resonance imaging device magnet structure with optimized scanning efficiency, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A magnetic resonance imaging device magnet structure for optimizing scanning efficiency comprises a base, wherein the upper left part and the upper right part of the base are respectively fixedly connected with a magnetic resonance stabilizing base and a bed base, the upper end of the magnetic resonance stabilizing base is fixedly connected with a main device, the left end and the right end of the main device are respectively clamped with a shielding device, the upper right end of the bed base is fixedly connected with a sliding device, and a sliding groove is provided in the middle of the upper end of the bed base;
[0007] The shielding device includes a clamping ring plate, the right end of the clamping ring plate is fixedly connected to a shielding ring plate, the inner wall of the shielding ring plate is fixedly connected to a shielding sheet, the right end of the shielding ring plate is provided with a plurality of shielding unit modules, and the clamping ring plate is clamped and installed on the right side of the main device.
[0008] Preferably, the main device includes a nuclear magnetic resonance instrument, a superconducting magnet is installed on the upper part of the outer surface of the nuclear magnetic resonance instrument, and the nuclear magnetic resonance instrument is fixedly connected to the upper end of the nuclear magnetic stabilizing seat.
[0009] By adopting the above technical solution: the main device adopts a nuclear magnetic resonance instrument and a superconducting magnet, and is fixed by a nuclear magnetic resonance stabilizing seat.
[0010] Preferably, the sliding device includes a driving motor, the output end of the driving motor passes through the bed base and is fixedly connected to a screw, the outer surface of the screw is movably connected to a slider, the upper end of the slider is fixedly connected to a bed body, the inner wall of the bed body is fixedly connected to a cushion, and the bed body is fixedly connected to the upper right end of the bed base.
[0011] By adopting the above technical solution: the combination of the drive motor and the screw can accurately control the movement of the bed, making it convenient for the patient to enter or exit the MRI machine. The addition of the soft cushion improves the patient's comfort and reduces the discomfort of lying on the hard bed for a long time.
[0012] Preferably, the sliding block is slidably connected in the sliding groove, and the left end of the screw rod is movably connected to the left seat wall of the sliding groove through a bearing.
[0013] By adopting the above technical solution: this design ensures the stability of the slider when it moves, the bearing connection reduces the friction when the screw rotates, and improves the efficiency and life of the sliding device.
[0014] Preferably, the sliding block has an I-shaped structure.
[0015] By adopting the above technical solution: the I-shaped structure increases the contact area between the slider and the slide groove, improves the sliding stability, and reduces the error caused by shaking or deviation.
[0016] Preferably, a plurality of the shielding unit modules are arranged in a ring array with a clamping ring plate as the center, and the clamping ring plate is clamped and installed on the outer surface of the nuclear magnetic resonance instrument.
[0017] By adopting the above technical solution: this design can fully shield the external interference signal to the nuclear magnetic resonance imager, improve the clarity and accuracy of imaging, and the snap-on installation method is convenient for disassembly and replacement, and is easy to maintain and upgrade.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] In the utility model, shielding devices are arranged at the left and right ends of the main device, the shielding devices include a clamping ring plate and a shielding ring plate, and the shielding sheet on the inner wall of the shielding ring plate and a plurality of shielding unit modules can effectively shield interference signals in the environment to ensure the imaging quality. By setting the shielding device, external interference signals are effectively shielded to ensure that the human body feedback signal received by the nuclear magnetic resonance device during the imaging process is accurate, thereby significantly improving the accuracy and clarity of the imaging and providing a more reliable basis for medical diagnosis;
[0020] In the utility model, the sliding device composed of a driving motor and a screw rod can accurately and quickly send the patient into the nuclear magnetic resonance instrument equipment, shortening the scanning preparation time, thereby improving the overall scanning efficiency. The bed in the sliding device is equipped with a soft cushion, which improves the patient's comfort during the scanning process, reduces the discomfort caused by lying on a hard surface for a long time, and helps the patient to cooperate with the examination better. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of a magnetic resonance imaging device magnet structure for optimizing scanning efficiency according to the utility model;
[0022] Figure 2 This is a schematic diagram of the overall structure of the main device of the magnetic structure of a nuclear magnetic resonance imaging device for optimizing scanning efficiency according to the utility model;
[0023] Figure 3 This is a schematic diagram of the overall structure of a shielding device for a magnetic resonance imaging device that optimizes scanning efficiency according to the utility model;
[0024] Figure 4 The utility model is a schematic diagram of the overall structure of a sliding device of a magnetic structure of a nuclear magnetic resonance imaging instrument for optimizing scanning efficiency.
[0025] In the figure: 1. base; 2. MRI stabilizing base; 3. bed base; 4. slide groove; 5. sliding device; 6. shielding device; 7. main device; 71. MRI instrument and equipment; 72. superconducting magnet; 61. clamping ring plate; 62. shielding ring plate; 63. shielding sheet; 64. shielding unit module; 51. bed body; 52. cushion; 53. slider; 54. screw; 55. driving motor. DETAILED DESCRIPTION
[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] See also Figure 1-4 , the utility model provides a technical solution:
[0030] A magnetic resonance imaging device magnet structure for optimizing scanning efficiency comprises a base 1, wherein the upper left portion and the upper right portion of the base 1 are respectively fixedly connected with a magnetic resonance stabilizing seat 2 and a bed base 3, the upper end of the magnetic resonance stabilizing seat 2 is fixedly connected with a main device 7, the left and right ends of the main device 7 are respectively clamped with a shielding device 6, the upper right end of the bed base 3 is fixedly connected with a sliding device 5, and a sliding groove 4 is provided in the middle of the upper end of the bed base 3.
[0031] In this embodiment, the shielding device 6 includes a clamping ring plate 61, the right end of the clamping ring plate 61 is fixedly connected to a shielding ring plate 62, the inner wall of the shielding ring plate 62 is fixedly connected to a shielding sheet 63, and a plurality of shielding unit modules 64 are arranged at the right end of the shielding ring plate 62, and the clamping ring plate 61 is clamped and installed on the right side of the main device 7; the plurality of shielding unit modules 64 are arranged in a circular array with the clamping ring plate 61 as the center, and the clamping ring plate 61 is clamped and installed on the outer surface of the nuclear magnetic resonance instrument 71.
[0032] Through the above scheme: the clamping ring plate 61 is clamped on the right side of the main device 7, providing an installation foundation and a stable connection for the entire shielding device. The shielding ring plate 62 surrounds the inside to form the first barrier, which plays a preliminary blocking role against external electromagnetic interference. The shielding sheet 63 on the inner wall of the shielding ring plate 62 further enhances the shielding effect against electromagnetic interference, and can effectively reduce or eliminate interference signals that may penetrate the shielding ring plate 62. Several shielding unit modules 64 distributed on the right end of the shielding ring plate 62 are arranged in a ring array with the clamping ring plate 61 as the center, forming a multi-directional and multi-level shielding system, which comprehensively blocks interference signals from all directions, ensuring that the human body feedback signal received by the nuclear magnetic resonance instrument 71 is not affected by external electromagnetic interference, thereby improving the accuracy and clarity of imaging.
[0033] In this embodiment, the main device 7 includes a nuclear magnetic resonance instrument 71, a superconducting magnet 72 is installed on the upper part of the outer surface of the nuclear magnetic resonance instrument 71, and the nuclear magnetic resonance instrument 71 is fixedly connected to the upper end of the nuclear magnetic stabilizing seat 2; the sliding device 5 includes a driving motor 55, the output end of the driving motor 55 passes through the bed base 3 and is fixedly connected to a screw 54, the outer surface of the screw 54 is movably connected to a slider 53, the upper end of the slider 53 is fixedly connected to a bed body 51, the inner wall of the bed body 51 is fixedly connected to a cushion 52, and the bed body 51 is fixedly connected to the upper right end of the bed base 3; the slider 53 is slidably connected in the slide groove 4, and the left end of the screw 54 is movably connected to the left seat wall of the slide groove 4 through a bearing; the slider 53 has an I-shaped structure.
[0034] According to the above scheme: the nuclear magnetic resonance instrument 71 is the core part of the whole imaging system. When the equipment is running, the superconducting magnet 72 installed on the upper part of its outer surface generates a strong and uniform magnetic field. The human body is sent into the magnetic field. The hydrogen atoms in the body resonate at a specific frequency under the action of the magnetic field. The instrument receives these resonance signals and converts them into image information of the internal structure of the human body through complex processing and calculation. After the drive motor 55 is started, its output end rotates and drives the screw 54 to rotate. Due to the rotation of the screw 54, the slider movably connected to its outer surface 53 is pushed by the thread of the screw rod 54. Since the slider 53 is slidably connected in the slide groove 4, the slide groove 4 limits the rotation of the slider 53 so that it can only move along the direction of the slide groove 4. In this way, as the screw rod 54 rotates, the slider 53 slides smoothly left and right in the slide groove 4, and the bed body 51 fixedly connected to the upper end of the slider 53 moves accordingly, thereby realizing the accurate and smooth delivery of the patient lying on the bed body 51 into or out of the nuclear magnetic resonance instrument 71. The soft cushion 52 on the inner wall of the bed body 51 provides comfortable support for the patient, reducing the patient's discomfort during the examination.
[0035] It should be noted that the utility model is a magnetic resonance imaging device magnet structure that optimizes scanning efficiency. During use, the drive motor 55 is first started, and the output end of the drive motor 55 drives the screw 54 to rotate. Since the screw 54 is movably connected to the slider 53, and the slider 53 is slidably connected in the slide groove 4, the slider 53 moves along the slide groove 4, thereby driving the bed 51 to move, and the patient is sent into the nuclear magnetic resonance instrument 71. During the scanning process, the superconducting magnet 72 generates a strong magnetic field, and the hydrogen atoms in the human tissue resonate under the action of the magnetic field. At the same time, the shielding ring plate 62, the shielding sheet 63 and the shielding unit module 64 in the shielding device 6 can effectively block external interference signals, thereby ensuring the accuracy and clarity of the human body feedback signal received by the nuclear magnetic resonance instrument 71.
[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A magnetic resonance imaging device magnet structure for optimizing scanning efficiency, comprising a base (1), characterized in that: The upper left part and the upper right part of the base (1) are respectively fixedly connected with a nuclear magnetic stabilizing seat (2) and a bed base (3); the upper end of the nuclear magnetic stabilizing seat (2) is fixedly connected with a main device (7); the left and right ends of the main device (7) are respectively clamped with a shielding device (6); the upper right end of the bed base (3) is fixedly connected with a sliding device (5); and the middle part of the upper end of the bed base (3) is provided with a sliding groove (4); The shielding device (6) comprises a clamping ring plate (61), the right end of the clamping ring plate (61) is fixedly connected to a shielding ring plate (62), the inner wall of the shielding ring plate (62) is fixedly connected to a shielding sheet (63), the right end of the shielding ring plate (62) is provided with a plurality of shielding unit modules (64), and the clamping ring plate (61) is clamped and installed on the right side of the main device (7).
2. The magnetic resonance imaging device magnet structure for optimizing scanning efficiency according to claim 1, characterized in that: The main device (7) comprises a nuclear magnetic resonance instrument (71), a superconducting magnet (72) is inserted and installed on the upper part of the outer surface of the nuclear magnetic resonance instrument (71), and the nuclear magnetic resonance instrument (71) is fixedly connected to the upper end of the nuclear magnetic stabilizing seat (2).
3. The magnetic resonance imaging device magnet structure for optimizing scanning efficiency according to claim 1, characterized in that: The sliding device (5) comprises a driving motor (55), the output end of the driving motor (55) passes through the bed base (3) and is fixedly connected to a screw rod (54), the outer surface of the screw rod (54) is movably connected to a slider (53), the upper end of the slider (53) is fixedly connected to a bed body (51), the inner wall of the bed body (51) is fixedly connected to a cushion (52), and the bed body (51) is fixedly connected to the upper right end of the bed base (3).
4. The magnetic resonance imaging device magnet structure for optimizing scanning efficiency according to claim 3, characterized in that: The slider (53) is slidably connected in the slide groove (4), and the left end of the screw rod (54) is movably connected to the left seat wall of the slide groove (4) through a bearing.
5. The magnetic resonance imaging device magnet structure for optimizing scanning efficiency according to claim 3, characterized in that: The sliding block (53) has an I-shaped structure.
6. The magnetic resonance imaging device magnet structure for optimizing scanning efficiency according to claim 1, characterized in that: A plurality of the shielding unit modules (64) are arranged in a ring array with a clamping ring plate (61) as the center, and the clamping ring plate (61) is clamped and mounted on the outer surface of the nuclear magnetic resonance instrument (71).