A nuclear magnetic resonance coil support device

Abstract

This utility model relates to the technical field of nuclear magnetic resonance (NMR) equipment, and more specifically, to an NMR coil support device, comprising a support frame body, a first support rod, and a height adjustment mechanism for adjusting the distance between the first support rod and the support frame body. The height adjustment mechanism is disposed in the support frame body and connected to the first support rod. This utility model, through the cooperative design of the height adjustment mechanism and the first support rod, achieves precise raising and lowering of the head coil, which can both be close to the patient's head to improve imaging quality and avoid pressure, ensuring patient comfort.

Description

Technical Field

[0001] This utility model relates to the technical field of nuclear magnetic resonance equipment, and more specifically, to a nuclear magnetic resonance coil support device. Background Technology

[0002] Magnetic resonance imaging-guided radiotherapy utilizes the superior soft tissue resolution of magnetic resonance imaging (MRI) to more accurately delineate the treatment target area and improve the accuracy of disease diagnosis, thereby optimizing radiotherapy planning and enhancing treatment outcomes. During clinical MRI scans, the radiofrequency coil needs to be tightly fitted to the patient's body surface to ensure signal reception quality.

[0003] In the prior art, for example, Chinese patent application CN111110237A discloses a magnetic resonance brain functional coil device, including an upper shell and a lower shell. The upper shell protrudes upwards to form a facial coverage area, and below the facial coverage area is a transition area of ​​the upper shell. An upper coil assembly is disposed within the upper shell, and the upper shell is provided with an upper coil assembly signal port and a positioning post. The signal of the upper coil assembly is transmitted through the upper coil assembly signal port. The lower shell is recessed downwards to form a head support area, and above the head support area is a transition area of ​​the lower shell. A lower coil assembly is disposed within the lower shell, and the lower shell is provided with a lower coil assembly signal port that matches the upper coil assembly signal port and a positioning hole that matches the positioning post. The signal of the lower coil assembly is transmitted through the lower coil assembly signal port. However, the height of such a coil device cannot be adjusted. During long-term magnetic resonance scanning, it will cause significant pressure on the patient, hindering the patient's breathing, causing the patient to move during the scanning process, and affecting the imaging accuracy. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies that cannot adjust the height of the coil device, which hinders the patient's breathing and affects the imaging accuracy. It provides a magnetic resonance coil support device that can adjust the height of the head coil, so that it can be close to the patient's head without causing pressure, thereby improving the accuracy of magnetic resonance imaging.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A nuclear magnetic resonance coil support device is provided, including a support frame body, a first support rod, and a height adjustment mechanism for adjusting the distance between the first support rod and the support frame body. The height adjustment mechanism is disposed in the support frame body and connected to the first support rod.

[0007] The magnetic resonance coil support device of this utility model has a height adjustment mechanism set in the support frame body and connected to the first support rod. The distance between the first support rod and the support frame body can be changed by the height adjustment mechanism in the support frame body. The first support rod can be used to fix the head magnetic resonance coil, thereby realizing the precise raising and lowering of the head coil. It can be close to the patient's head to improve the imaging quality, while avoiding pressure and ensuring the patient's comfort.

[0008] Furthermore, the support frame body is provided with an adjustment groove, and the height adjustment mechanism is movably connected to the adjustment groove. By providing an adjustment groove in the support frame body and movably connecting it to the height adjustment mechanism, the adjustment groove provides a stable movement track for the height adjustment mechanism, ensuring a smooth and unbiased lifting process. This enables flexible lifting and lowering adjustment of the first support rod, allowing the coil device to make precise height adjustments according to the patient's head position. This improves imaging accuracy while avoiding pressure on the patient's head due to improper height.

[0009] Furthermore, the height adjustment mechanism includes a top block and an adjusting rod. One end of the adjusting rod is connected to the first support rod, and the other end is connected to the top block. The top block is movably connected to the adjusting groove. The user operates the mechanism by moving the adjusting rod to control the position of the top block in the adjusting groove, thereby achieving stable height control of the first support rod. The adjusting rod, acting as a force transmission component, transmits the operating force to the top block. As the top block moves along the adjusting groove, it drives the adjusting rod to move synchronously, thus precisely adjusting the height of the first support rod. This ensures the smoothness and reliability of the adjustment process, and the cooperation between the top block and the adjusting groove effectively prevents the support rod from shifting or wobbling. While meeting the need for rapid adjustment, it keeps the head MRI coil stable at the target height.

[0010] Furthermore, the adjusting groove is provided with positioning teeth, and the side of the top block is provided with adjusting tooth surfaces that cooperate with the positioning teeth. The positioning teeth mesh with the adjusting tooth surfaces, providing multiple fixed positions for the top block in the adjusting groove. When the top block moves along the adjusting groove, the tooth surface meshing structure provides clear gear feedback, facilitating precise control of the lifting height. After adjustment, the mechanical self-locking effect generated by the inter-tooth meshing can effectively resist external vibration or gravity, prevent the slider from accidentally sliding down, and ensure that the coil device maintains a stable position during scanning.

[0011] Furthermore, the top block has a through hole, and the adjusting rod includes a first support section, a wedge-shaped section, and a second support section connected in sequence. The second support section passes through the through hole, and the cross-sectional area at the connection between the wedge-shaped section and the first support section is larger than the area of ​​the through hole. The second support section can freely pass through the through hole, and the cross-sectional area of ​​the wedge-shaped section gradually increases until the connection between the wedge-shaped section and the first support section abuts against the through hole. Since the cross-sectional area at the connection between the wedge-shaped section and the first support section is larger than the area of ​​the through hole, when the adjusting rod moves, it can drive the top block to move, thereby adjusting the position of the top block in the adjusting groove and achieving fixation in the height direction.

[0012] Furthermore, the through-hole is elongated oval in shape. This elongated oval structure provides lateral swing margin for the second support section, allowing it to adapt to minor angular deviations during adjustment and preventing jamming. The elongated oval through-hole maintains effective contact with the wedge-shaped surface and the first support section, ensuring stable linear movement of the top block within the adjustment groove.

[0013] Furthermore, the top block is provided with an elastic element that abuts against the second support section. The elastic force of the elastic element presses the second support section and the top block together towards the adjustment groove, providing horizontal pressure to ensure the stable fixation of the top block; pressing the adjustment rod causes the wedge block to enter the top block, thereby compressing the elastic element, which can release the locking state, allowing the top block to separate from the positioning teeth in the adjustment groove, and then continue to adjust the position of the top block in the height direction.

[0014] Furthermore, it also includes a locking mechanism and a base disposed at the bottom of the support frame body, wherein the locking mechanism and the base are detachably connected. The detachable connection between the locking mechanism and the base enables rapid assembly and disassembly of the nuclear magnetic resonance coil support device, facilitating replacement, maintenance, and transportation.

[0015] Furthermore, the locking mechanism is a spring-loaded latch, which includes a connecting part and a pressing part. The connecting part is U-shaped and connected to the pressing part, and a limiting part is provided on the connecting part to abut against the base. With the spring-loaded latch locking mechanism, the user only needs to lightly press the pressing part to insert the U-shaped connecting part into the base, while simultaneously causing the limiting part to abut against the base, thus fixing the support body to the base.

[0016] Furthermore, the support frame body has second support rods on both sides, and a slide rail on the support frame body, with the second support rods slidably connected to the slide rail. The second support rods on both sides of the support frame body slide in conjunction with the slide rail, allowing the distance between the second support rods to be changed during use, thereby adapting to different patient head sizes and improving imaging accuracy and patient comfort.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Through the coordinated design of the height adjustment mechanism and the first support rod, the head coil can be raised and lowered precisely, which can not only be close to the patient's head to improve imaging quality, but also avoid pressure and ensure patient comfort.

[0019] 2. The positioning teeth in the adjustment groove mesh with the adjusting teeth of the top block, and with the elastic force of the elastic element, the height is fixed after adjustment, preventing displacement during scanning and improving imaging stability.

[0020] 3. The spring-loaded locking mechanism enables one-click quick assembly and disassembly of the support frame and base, facilitating equipment maintenance or relocation. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the nuclear magnetic resonance coil support device;

[0022] Figure 2 A schematic diagram of the nuclear magnetic resonance coil support device from another perspective;

[0023] Figure 3 This is a schematic diagram of the height adjustment mechanism;

[0024] Figure 4 This is a schematic diagram of the top block structure;

[0025] Figure 5 This is a schematic diagram of the adjusting rod.

[0026] Figure 6 This is a schematic diagram of the locking mechanism.

[0027] In the attached drawings: 100, main body of the support frame; 110, adjusting groove; 111, positioning tooth; 120, locking mechanism; 121, connecting part; 122, pressing part; 123, limiting part; 130, base; 200, first support rod; 300, height adjustment mechanism; 310, top block; 311, adjusting tooth surface; 312, through hole; 313, elastic element; 320, adjusting rod; 321, first support section; 322, wedge-shaped section; 323, second support section; 400, second support rod. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0029] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] Example 1

[0031] This embodiment is a first embodiment of a nuclear magnetic resonance coil support device, including a support frame body 100, a first support rod 200, and a height adjustment mechanism 300 for adjusting the distance between the first support rod 200 and the support frame body 100. The height adjustment mechanism 300 is disposed in the support frame body 100 and connected to the first support rod 200.

[0032] like Figure 1 As shown, in this embodiment, the MRI coil support device has a height adjustment mechanism 300 installed in the support frame body 100 and connected to the first support rod 200. The height adjustment mechanism 300 in the support frame body 100 changes the distance between the first support rod 200 and the support frame body 100. The first support rod 200 can be used to fix the head MRI coil, thereby achieving precise lifting and lowering of the head coil. This not only allows it to be close to the patient's head to improve imaging quality but also avoids pressure and ensures patient comfort.

[0033] In this embodiment, the support frame body 100 is provided with an adjustment groove 110, and the height adjustment mechanism 300 is movably connected to the adjustment groove 110. By providing the adjustment groove 110 in the support frame body 100 and movably connecting it to the height adjustment mechanism 300, the adjustment groove 110 provides a stable movement track for the height adjustment mechanism 300, ensuring a smooth and unbiased lifting process. This achieves flexible lifting and lowering adjustment of the first support rod 200, enabling the coil device to make precise height adjustments according to the patient's head position. This improves imaging accuracy while avoiding pressure on the patient's head due to improper height.

[0034] like Figure 3As shown, the height adjustment mechanism 300 includes a top block 310 and an adjustment rod 320. One end of the adjustment rod 320 is connected to the first support rod 200, and the other end is connected to the top block 310. The top block 310 is movably connected to the adjustment groove 110. The user controls the position of the top block 310 in the adjustment groove 110 by moving the adjustment rod 320, thereby achieving stable height control of the first support rod 200. The adjustment rod 320, as a force transmission component, transmits the operating force to the top block 310. When the top block 310 moves along the adjustment groove 110, it drives the adjustment rod 320 to move synchronously, thereby precisely adjusting the height of the first support rod 200. This ensures the smoothness and reliability of the adjustment process, and the cooperation between the top block 310 and the adjustment groove 110 effectively prevents the support rod from shifting or wobbling. While meeting the need for rapid adjustment, it also keeps the head MRI coil stable at the target height.

[0035] In this embodiment, the adjusting groove 110 is provided with positioning teeth 111, and the side of the top block 310 is provided with adjusting tooth surfaces 311 that cooperate with the positioning teeth 111. Figure 3 , Figure 4 As shown, the positioning tooth 111 meshes with the adjusting tooth surface 311, providing multiple fixed positions for the top block 310 in the adjusting groove 110. When the top block 310 moves along the adjusting groove 110, the tooth meshing structure provides clear gear feedback, facilitating precise control of the lifting height. After adjustment, the mechanical self-locking effect generated by the tooth meshing can effectively resist external vibration or gravity, prevent the slider from accidentally sliding down, and ensure that the coil device maintains a stable position during scanning.

[0036] Example 2

[0037] This embodiment is a second embodiment of the nuclear magnetic resonance coil support device. This embodiment is similar to the first embodiment, except that, as Figure 5 As shown, the top block 310 has a through hole 312. The adjusting rod 320 includes a first support section 321, a wedge-shaped section 322, and a second support section 323 connected in sequence. The second support section 323 passes through the through hole 312. The cross-sectional area of ​​the connection between the wedge-shaped section 322 and the first support section 321 is larger than the area of ​​the through hole 312. The second support section 323 can freely pass through the through hole 312. The cross-sectional area of ​​the wedge-shaped section 322 gradually increases until the connection between the wedge-shaped section 322 and the first support section 321 abuts against the through hole 312. Since the cross-sectional area of ​​the connection between the wedge-shaped section 322 and the first support section 321 is larger than the area of ​​the through hole 312, when the adjusting rod 320 moves, it can drive the top block 310 to move, thereby adjusting the position of the top block 310 in the adjusting groove 110 and achieving fixation in the height direction.

[0038] like Figure 4As shown, the through hole 312 is elongated oval in shape. The elongated oval through hole 312 structure provides lateral swing margin for the second support section 323, enabling it to adapt to small angular deviations during adjustment and avoid jamming. The elongated oval through hole 312 can maintain effective contact with the wedge-shaped surface and the first support section 321, ensuring stable linear movement of the top block 310 within the adjustment groove 110.

[0039] In this embodiment, the top block 310 is provided with an elastic element 313, which abuts against the second support section 323. The elastic force of the elastic element 313 presses the second support section 323 and the top block 310 together towards the adjustment groove 110, providing horizontal pressure to ensure the stable fixation of the top block 310. Pressing the adjustment rod 320 causes the wedge block to enter the top block 310, thereby compressing the elastic element 313, which can release the locking state, allowing the top block 310 to separate from the positioning teeth 111 in the adjustment groove 110, and then continue to adjust the position of the top block 310 in the height direction.

[0040] Example 3

[0041] This embodiment is the third embodiment of the nuclear magnetic resonance coil support device. This embodiment is similar to Embodiment 1, except that it also includes a locking mechanism 120 and a base 130 disposed at the bottom of the support frame body 100. The locking mechanism 120 and the base 130 are detachably connected. Figure 2 As shown, the locking mechanism 120 and the base 130 are detachably connected, which enables quick assembly and disassembly of the nuclear magnetic resonance coil support device, facilitating replacement, maintenance and transportation.

[0042] like Figure 6 As shown, the locking mechanism 120 in this embodiment is a spring-loaded latch, which includes a connecting part 121 and a pressing part 122. The connecting part 121 is U-shaped and connected to the pressing part 122. The connecting part 121 is provided with a limiting part 123 that abuts against the base 130. With the spring-loaded locking mechanism 120, the user only needs to lightly press the pressing part 122 to insert the U-shaped connecting part 121 into the base 130, while the limiting part 123 abuts against the base 130, thus fixing the support body onto the base 130.

[0043] The support frame body 100 has second support rods 400 on both sides, and a slide rail is provided on the support frame body 100. The second support rods 400 are slidably connected to the slide rail. The second support rods 400 on both sides of the support frame body 100 slide in cooperation with the slide rail, which can change the distance between the second support rods 400 during use, thereby adapting to different head sizes of patients and improving imaging accuracy and patient comfort.

[0044] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A nuclear magnetic resonance coil support apparatus, characterized by, It includes a support frame body (100), a first support rod (200), and a height adjustment mechanism (300) for adjusting the distance between the first support rod (200) and the support frame body (100). The height adjustment mechanism (300) is disposed in the support frame body (100) and connected to the first support rod (200).

2. The NMR coil support apparatus according to claim 1, wherein The support frame body (100) is provided with an adjustment groove (110), and the height adjustment mechanism (300) is movably connected to the adjustment groove (110).

3. The NMR coil support apparatus of claim 2, wherein The height adjustment mechanism (300) includes a top block (310) and an adjustment rod (320). One end of the adjustment rod (320) is connected to the first support rod (200), and the other end is connected to the top block (310). The top block (310) is movably connected to the adjustment groove (110).

4. The NMR coil support apparatus of claim 3, wherein The adjusting groove (110) is provided with positioning teeth (111), and the side of the top block (310) is provided with adjusting tooth surface (311) that cooperates with the positioning teeth (111).

5. The NMR coil support apparatus of claim 3, wherein The top block (310) is provided with a through hole (312). The adjusting rod (320) includes a first support section (321), a wedge section (322), and a second support section (323) connected in sequence. The second support section (323) passes through the through hole (312). The shape of the first support section (321) is the same as that of the through hole (312). The cross-sectional area at the connection between the wedge section (322) and the first support section (321) is larger than the area of ​​the through hole (312).

6. The NMR coil support apparatus of claim 5, wherein The through hole (312) is oblong in shape.

7. The NMR coil support apparatus of claim 5 wherein, The top block (310) is provided with an elastic element (313), which abuts against the second support section (323).

8. The NMR coil support apparatus according to any one of claims 1 to 7, characterized by It also includes a locking mechanism (120) and a base (130) disposed at the bottom of the support frame body (100), wherein the locking mechanism (120) and the base (130) are detachably connected.

9. The NMR coil support apparatus of claim 8, wherein, The locking mechanism (120) is a spring buckle, which includes a connecting part (121) and a pressing part (122). The connecting part (121) is U-shaped and connected to the pressing part (122). The connecting part (121) is provided with a limiting part (123) that abuts against the base (130).

10. The NMR coil support apparatus according to any one of claims 1 to 7, characterized by The support frame body (100) is provided with second support rods (400) on both sides, and the support frame body (100) is provided with slide rails, and the second support rods (400) are slidably connected to the slide rails.

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