Double-tuned animal coil

Abstract

The utility model relates to the technical field of nuclear magnetic resonance imaging devices, in particular to a double-tuned animal coil which comprises a cylindrical coil, a coil supporting structure, a base, a side supporting structure and a supporting plate, the cylindrical coil is arranged in the coil supporting structure, the base supports the coil supporting structure, the side supporting structure is fixed at one end of the base, and the supporting plate is fixed at the other end of the base. The supporting plate is in sliding connection with the side supporting structure and is driven by the linear driving structure to extend out of the cylindrical coil or retract into the cylindrical coil, an adjustable limiting structure and a position sensor are arranged on the supporting plate, the cylindrical coil is a double-tuning coil, the position of an animal is limited through the adjustable limiting structure, and the position of the animal is adjusted through the position sensor. The linear driving structure drives the supporting plate to stretch out and draw back so as to facilitate imaging, the automation degree of the device is improved, meanwhile, the position sensor is matched, the position of the supporting plate can be accurately controlled, and imaging position conditions are guaranteed. Meanwhile, multiple nuclear signals can be obtained at the same time through one-time scanning, the imaging speed is high, and the imaging effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear magnetic resonance imaging devices, in particular to a double-tuned animal coil. Background Art

[0002] Magnetic resonance imaging plays an increasingly important role in scientific research and clinical medicine. The MRI technology on the market is mainly single-core single-tuned MRI, and its function is limited to the body's tissue structure. With the development of technology, multi-core dual-tuned MRI has gradually emerged. Compared with ordinary single-core single-tuned MRI, multi-core dual-tuned has the advantages of more imaging information and faster imaging speed. In the field of nuclear magnetic resonance imaging of small animals such as mice, the existing device is a single-core single-tuned MRI, which has a low imaging speed, poor imaging effect, and many problems such as inaccurate positioning and inconvenient operation. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the utility model provides a double-tuned animal coil.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a double-tuned animal coil, including a cylindrical coil, a coil support structure, a base, a side support structure and a support plate, the cylindrical coil is built into the coil support structure, the base supports the coil support structure, the side support structure is fixed to one end of the base, the support plate is slidably connected to the side support structure, and is driven by a linear drive structure to extend out of the cylindrical coil or retract into the cylindrical coil, an adjustable limit structure and a position sensor are arranged on the support plate, the cylindrical coil is a double-tuned coil, and the coil support structure is made of non-conductive material.

[0005] According to another embodiment of the utility model, the support plate is further provided with limit guide bars fixed on both sides, and the side support structure is provided with guide grooves adapted to the limit guide bars. The guide grooves and the limit guide bars are used to guide the extension of the support plate, thereby ensuring the smoothness of the linear motion of the support plate.

[0006] According to another embodiment of the utility model, the linear drive structure further includes a screw, a slider and a handwheel, the slider is connected to the screw, the screw is driven by the handwheel, and the slider is fixedly connected to the bottom surface of the support plate. The slider and the screw are used to accurately drive the support plate to perform linear motion.

[0007] According to another embodiment of the utility model, the cylindrical coil further comprises a diameter of 60±2 mm, which is sufficient to cover the imaging area and provide a uniform magnetic field.

[0008] According to another embodiment of the utility model, the adjustable limit structure is arranged in pairs, including a waist groove, a limit block and an adjusting bolt assembly, and the limit block is adjustably fixed to the waist groove by adjusting the bolt assembly. The waist groove forms an adjustable space, so that the adaptability is wider.

[0009] The beneficial effect of the utility model is that the animal position is limited by an adjustable limit structure, and the support plate is driven to extend and retract by a linear drive structure for imaging, thereby improving the degree of automation of the device, and at the same time, with the position sensor, the support plate position can be accurately controlled to ensure the position conditions for imaging. The cylindrical coil is a double-tuned coil, so that the signals of multiple nuclei can be obtained simultaneously in one scan, with fast imaging speed and good imaging effect, providing more accurate data for studying animal models. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a left view of the utility model;

[0013] Figure 3 It is a top view of the structure of the pallet;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.

[0015] In the figure, there are a cylindrical coil 1, a coil supporting structure 2, a base 3, a side supporting structure 4, a support plate 5, a linear drive structure 6, a screw 61, a slider 62, a handwheel 63, an adjustable limiting structure 7, a waist-shaped groove 71, a limiting block 72, an adjusting bolt assembly 73, a position sensor 8, a limiting guide bar 9, and a guide groove 10. DETAILED DESCRIPTION

[0016] like Figures 1 to 4 It is a structural schematic diagram of the utility model, a double-tuned animal coil, characterized in that it includes a cylindrical coil 1, a coil support structure 2, a base 3, a side support structure 4 and a support plate 5, the cylindrical coil 1 is built in the coil support structure 2, the base 3 supports the coil support structure 2, the side support structure 4 is fixed to one end of the base 3, the support plate 5 is slidably connected to the side support structure 4, and is driven by a linear drive structure 6 to extend out of the cylindrical coil 1 or retract into the cylindrical coil 1, an adjustable limiting structure 7 and a position sensor 8 are provided on the support plate 5, the cylindrical coil 1 is a double-tuned coil, and the coil support structure 2 is made of non-conductive material.

[0017] Specifically, the support plate 5 is used to carry the animal, and the animal is limited by the adjustable limiting structure 7. The present application drives the support plate 5 to extend and retract through the linear drive structure 6, extending it before loading the animal and retracting it after loading the animal, so as to facilitate imaging, thereby improving the degree of automation of the device. At the same time, in conjunction with the position sensor 8, the position of the support plate 5 can be accurately controlled to ensure the position conditions for imaging. The cylindrical coil 1 is a double-tuned coil. The design of the double-tuned animal coil allows the simultaneous acquisition of signals of multiple nuclei in one scan (for example, simultaneous acquisition of hydrogen nuclei and carbon nuclei). In addition to the body's tissue structure, it can also provide signals such as body metabolism, while also improving the resolution and accuracy of imaging, providing a high signal-to-noise ratio and spatial resolution, and providing more accurate MRI data for studying animal models.

[0018] According to another embodiment of the utility model, the support plate 5 is further provided with limit guide bars 9 fixed on both sides, and the side support structure 4 is provided with guide grooves 10 adapted to the limit guide bars 9. The guide grooves 10 and the limit guide bars 9 are used to guide the extension of the support plate 5, thereby ensuring the smoothness of the linear motion of the support plate 5.

[0019] According to another embodiment of the utility model, the linear drive structure 6 further includes a screw rod 61, a slider 62 and a hand wheel 63, the slider 62 is connected to the screw rod 61, the screw rod 61 is driven by the hand wheel 63, and the slider 62 is fixedly connected to the bottom surface of the support plate 5. The slider 62 and the screw rod 61 are used to accurately drive the support plate 5 to perform linear motion; the hand wheel can be adjusted to avoid electromagnetic interference of the motor magnetic field on the imaging coil when the motor is driven.

[0020] According to another embodiment of the utility model, the cylindrical coil 1 further comprises a diameter of 60±2 mm, which is sufficient to cover the imaging area and provide a uniform magnetic field.

[0021] According to another embodiment of the utility model, the adjustable limiting structure 7 is arranged in pairs, including a waist-shaped groove 71, a limiting block 72 and an adjusting bolt assembly 73, and the limiting block 72 is adjustably fixed to the waist-shaped groove 71 by the adjusting bolt assembly 73. The waist-shaped groove 71 forms an adjustable space, so that the adaptability is wider.

[0022] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A double-tuned animal coil, characterized in that: The invention comprises a cylindrical coil (1), a coil support structure (2), a base (3), a side support structure (4) and a support plate (5), wherein the cylindrical coil (1) is built into the coil support structure (2), the base (3) supports the coil support structure (2), the side support structure (4) is fixed to one end of the base (3), the support plate (5) is slidably connected to the side support structure (4), and is driven by a linear drive structure (6) to extend out of the cylindrical coil (1) or to retract into the cylindrical coil (1), an adjustable limit structure (7) and a position sensor (8) are arranged on the support plate (5), the cylindrical coil (1) is a double-tuned coil, and the coil support structure (2) is made of a non-conductive material.

2. The dual-tuned animal coil according to claim 1, characterized in that: Limiting guide bars (9) are fixed on both sides of the support plate (5), and guiding grooves (10) adapted to the limiting guide bars (9) are fixed on the side support structure (4).

3. The dual-tuned animal coil according to claim 1, characterized in that: The linear drive structure (6) comprises a screw rod (61), a slider (62) and a hand wheel (63); the slider (62) is connected to the screw rod (61); the screw rod (61) is driven by the hand wheel (63); and the slider (62) is fixedly connected to the bottom surface of the support plate (5).

4. The dual-tuned animal coil according to claim 1, characterized in that: The cylindrical coil (1) has a diameter of 60±2 mm.

5. The dual-tuned animal coil according to claim 1, characterized in that: The adjustable limiting structures (7) are arranged in pairs, and comprise a waist-shaped groove (71), a limiting block (72) and an adjusting bolt assembly (73); the limiting block (72) is adjustably fixed to the waist-shaped groove (71) via the adjusting bolt assembly (73).

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