Radio frequency coil assembly for magnetic resonance imaging system and magnetic resonance imaging system

Abstract

The utility model relates to a radio frequency coil assembly used for a magnetic resonance imaging system and the magnetic resonance imaging system. The radio frequency coil assembly comprises a lower part, a side part and an upper part. The side part is arranged at the end part of the lower part; the upper part is rotatably connected to the lower part; the lower part, the two side parts and the upper part jointly define a containing cavity with an opening in one end, and the lower part, the side parts and the upper part are all provided with coil units; wherein in the process that the upper part is adjusted to the opening and closing state from the closing state relative to the lower part, the upper part can link at least one side part to move to a set position relative to the lower part. By adopting the structural form, the space size of the accommodating cavity can be adjusted, so that when the radio frequency coil assembly faces patients with different body types, the radio frequency coil assembly is more fit with the heads and necks of the patients by adjusting the space size of the accommodating cavity, and the signal-to-noise ratio of the radio frequency coil assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a radio frequency coil assembly for a magnetic resonance imaging system and a magnetic resonance imaging system. Background Technology

[0002] Magnetic resonance imaging (MRI) devices, used to examine patients by scanning them with magnetic field resonance tomography, have been widely used in clinical medical examinations and treatments. Existing MRI systems (also known as MR or MRT) typically include multiple different antennas (also called coils) for transmitting radiofrequency pulses to transmit magnetic resonance signals and / or acquiring induced magnetic resonance signals. MRI devices generally include a large coil (i.e., a whole-body coil, also called a body coil or BC) and multiple small surface coils (also called local coils). The body coil is usually permanently installed in the MRI system; while the surface coils are used to obtain detailed images of a specific part of the patient's body, or to obtain detailed images of an organ close to the body surface. For this purpose, the surface coils are applied to the area of ​​the patient to be examined.

[0003] Radiofrequency coil assemblies are used to scan a patient's head and neck. Existing radiofrequency coil assemblies have fixed internal spaces that cannot be adjusted, making them unsuitable for patients of different body types. Utility Model Content

[0004] Therefore, it is necessary to provide an RF coil assembly that addresses the technical problem of the non-adjustable internal space of RF coil assemblies in the prior art.

[0005] A radio frequency coil assembly for a magnetic resonance imaging system, the radio frequency coil assembly comprising:

[0006] Lower component;

[0007] A side component is disposed at the end of the lower component;

[0008] The upper component is rotatably connected to the lower component;

[0009] The lower component, the two side components, and the upper component together form an accommodating cavity with one open end. The lower component, the side components, and the upper component are all provided with coil units.

[0010] During the process of adjusting the upper component from a closed state to an open state relative to the lower component, the upper component can move at least one of the side components relative to the lower component to a set position.

[0011] In one embodiment,

[0012] The side components are two in number; the left side component of the lower component is detachably connected to the lower component, and the right side component of the lower component is fixedly connected to the lower component; or...

[0013] The side component is a single component located at the left end of the lower component, and the side component is detachably connected to the lower component.

[0014] In one embodiment, there are two side components, with the right side component of the lower component detachably connected to the lower component, and the left side component of the lower component fixedly connected to the lower component; or,

[0015] The side component is a single component located at the right end of the lower component, and the side component is detachably connected to the lower component.

[0016] In one embodiment, the left and right side components of the lower component are detachably connected to the lower component, the upper component can simultaneously link the two side components, and the two side components are locked relative to the lower component after moving to a set position.

[0017] In one embodiment, the radio frequency coil assembly further includes a locking component, the side component being detachably connected to the lower component via the locking component, and the locking component being able to lock the movement of the side component relative to the lower component after the side component moves to the set position.

[0018] In one embodiment, the locking component includes:

[0019] The sleeve is fixedly connected to the lower component;

[0020] A locking element is rotatably connected to the side component, and the locking element is detachably connected to the sleeve;

[0021] The knob is fixedly connected to the locking component;

[0022] When the side component moves to the set position, a portion of the knob can abut against the end of the lower component to restrict the movement of the side component relative to the lower component.

[0023] In one embodiment, the lower component is provided with a pressing component, which enables the upper component to be locked or unlocked relative to the lower component.

[0024] A magnetic resonance imaging system includes:

[0025] Hospital bed;

[0026] A radio frequency coil assembly is mounted on the surface of the hospital bed; the radio frequency coil assembly includes a lower component, a side component, and an upper component.

[0027] The side component is disposed at the end of the lower component, and the lower component is disposed vertically opposite to the upper component;

[0028] The lower component, the side component, and the upper component are all provided with coil units;

[0029] During the process of adjusting the upper component from a closed state to an open / closed state relative to the lower component, the upper component can move at least one of the side components relative to the lower component to a locked position.

[0030] In one embodiment, the lower component is provided with a position adjustment knob, which can be rotated to adjust the tilt angle of the radio frequency coil assembly relative to the hospital bed.

[0031] In one embodiment, the tilt angle ranges from 0 to 25°.

[0032] The beneficial effects of this utility model are:

[0033] This invention provides a radio frequency (RF) coil assembly, comprising a lower component, a side component, and an upper component. These components together form a receiving cavity, facilitating the entry of the patient's head into the cavity during scanning. The upper component is rotatably connected to the lower component, allowing it to open or close relative to the lower component through rotation, thus facilitating the entry of the patient's head and neck into the receiving cavity. Coil units are provided in the lower, side, and upper components for transmitting and receiving RF signals. The upper component and at least one side component are interconnected, allowing the side component to move relative to the lower component when the upper component flips relative to it, thereby adjusting the size of the receiving cavity. This structural design allows for adjustable cavity size, enabling the RF coil assembly to better fit the patient's head and neck when facing patients of different body types, thereby improving the signal-to-noise ratio of the RF coil assembly. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the upper component of the radio frequency coil assembly provided in an embodiment of the present invention when it is in a closed state;

[0035] Figure 2 This is a schematic diagram of the structure of the upper component of the radio frequency coil assembly provided in an embodiment of the present invention when it is in the open state;

[0036] Figure 3 This is a schematic diagram of the upper component in an embodiment of the radio frequency coil assembly provided by this utility model;

[0037] Figure 4 This is a schematic diagram of the structure of an RF coil assembly after the upper component has been removed, according to an embodiment of the present invention.

[0038] Figure 5 This is a schematic diagram of the structure of the linkage component in the radio frequency coil assembly provided in an embodiment of the present invention when it is installed in the radio frequency coil assembly;

[0039] Figure 6 This is a schematic diagram of the linkage component in an embodiment of the present invention;

[0040] Figure 7 A schematic diagram of the structure of the linkage component in the radio frequency coil assembly provided in an embodiment of the present utility model, showing the removal of the side component when the linkage component is installed in the radio frequency coil assembly;

[0041] Figure 8 This is a schematic diagram of the structure of the transmission rack and sliding block in the linkage component of the radio frequency coil assembly provided in an embodiment of the present invention;

[0042] Figure 9 This is an exploded view of the locking component in a radio frequency coil assembly according to an embodiment of the present invention.

[0043] Figure 10 A cross-sectional structural diagram of the locking component in an embodiment of the present invention;

[0044] Figure 11 A schematic diagram of the structure of the knob of the locking component in an embodiment of the present utility model;

[0045] Figure 12 A schematic diagram of the structure of the locking component in an embodiment of the present invention after the knob is installed on the side component;

[0046] Figure 13 A schematic diagram of the structure of an RF coil assembly provided in an embodiment of the present invention when the upper component is in the open state and rotated at a certain tilt angle;

[0047] Figure 14 A schematic diagram of the structure of an RF coil assembly provided in an embodiment of the present invention from a rear view.

[0048] Figure 15 A schematic diagram of the structure of an RF coil assembly provided in an embodiment of the present invention when the upper component is in a closed state and rotated at a certain tilt angle.

[0049] Figure 16 A schematic diagram of the structure of the radio frequency coil assembly provided in an embodiment of the present invention when the right side component is removed;

[0050] Figure 17 A schematic diagram of the structure of an RF coil assembly provided in an embodiment of the present invention with the right-side component removed and the upper component in the open state;

[0051] Figure 18 This is a schematic diagram of the structure of an RF coil assembly provided in an embodiment of the present invention when the left and right side components are removed;

[0052] Figure 19 This is a schematic diagram of the angle adjustment mechanism in an embodiment of the present invention.

[0053] Figure 20 This is a schematic diagram of the structure of a radio frequency coil assembly installed on a hospital bed according to an embodiment of the present invention;

[0054] Figure 21 This is a schematic diagram of the structure of an embodiment of the present invention, showing the upper component in the open state when the radio frequency coil assembly is installed on a hospital bed.

[0055] Figure 22 This is a schematic diagram of the structure of the radio frequency coil assembly provided in one embodiment of the present invention when the upper component is removed after installation on a hospital bed;

[0056] Figure 23 A schematic diagram of the structure of the radio frequency coil assembly provided in one embodiment of the present invention when the side components on the left and right sides are removed after installation on the hospital bed;

[0057] Figure 24 A schematic diagram showing the structure of the radio frequency coil assembly provided in one embodiment of the present invention when the upper component and the right-side side component are removed during installation on a hospital bed;

[0058] Figure 25 A schematic diagram showing the structure of a radio frequency coil assembly provided in one embodiment of the present invention, in which the right-side side component is removed and the upper component is opened when it is installed on a hospital bed;

[0059] Figure 26 A schematic diagram of the structure provided in one embodiment of the present invention, showing how the radio frequency coil assembly is rotated at a certain angle and the left and right side parts are removed and the upper part is opened when it is installed on the hospital bed;

[0060] Figure 27 This is a schematic diagram of the structure of the radio frequency coil assembly provided in an embodiment of the present invention when it is installed on a hospital bed, the radio frequency coil assembly unit is rotated at a certain angle and the upper part is removed;

[0061] Figure 28 A schematic diagram of the structure of the radio frequency coil assembly provided in one embodiment of the present invention when it is installed on a hospital bed, the radio frequency coil assembly unit is rotated at a certain angle and the upper part and the side parts on the left and right sides are removed;

[0062] Figure 29 A scene diagram illustrating the use of the radio frequency coil assembly in a supine position according to an embodiment of the present invention;

[0063] Figure 30 A scene diagram illustrating the use of the radio frequency coil assembly provided in an embodiment of this utility model in a side-lying position;

[0064] Figure 31 This is a schematic diagram showing the connection between the coil unit included in the upper part of the radio frequency coil assembly provided in an embodiment of the present invention and the lower part;

[0065] Figure 32 This is a schematic diagram showing the connection between the coil unit included in the side component of the radio frequency coil assembly provided in an embodiment of the present invention and the lower component.

[0066] Figure label:

[0067] Lower component 100; Insertion part 110; Guide rail 120; Side component 200; Upper component 300; Insertion connector 310; Base 400; Pivot shaft 500; Linkage assembly 600; Drive gear 610; Drive shaft 620; Drive rack 630; Sliding block 640; Guide drive block 650; Guide inclined surface 651; Sliding base 660; Driven gear 670; Protective sleeve 680; Locking assembly 700; Sleeve 710; Limiting protrusion 711; Locking element 720; Limiting groove 721; Spiral groove section 7211; Transverse groove section 7212; Anti-rotation protrusion Block 722; Anti-rotation protrusion 7221; Knob 730; Protrusion 731; Anti-rotation pressure block 740; Anti-rotation recess 741; Second elastic element 750; Angle adjustment mechanism 800; Gear assembly 810; First bevel gear 811; First transmission rod 812; Second transmission rod 813; Second bevel gear 814; Third bevel gear 815; Worm gear 820; Connecting rod 830; Turbine 840; Handle 850; Pressing assembly 860; Receiving cavity 910; Connector 920; Bed 930; Patient 940; Coil unit 950; Connecting wire 960. Detailed Implementation

[0068] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0069] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0074] See Figures 1 to 8 , Figure 31 and Figure 32 A radio frequency coil assembly for a magnetic resonance imaging system includes a lower component 100, two side components 200, and an upper component 300. The side components 200 are disposed at the end of the lower component. The upper component 300 is rotatably connected to the lower component 100. The lower component 100, the two side components 200, and the upper component 300 together enclose a receiving cavity 910 with one end open. The lower component 100, the side components 200, and the upper component 300 are all provided with coil units 950. During the process of adjusting the upper component 300 from a closed state to an open state relative to the lower component 100, the upper component 300 can move at least one side component 200 relative to the lower component 100 to a set position.

[0075] This technical solution provides a radio frequency coil assembly, which includes a lower component 100, a side component 200, and an upper component 300. The lower component 100, side component 200, and upper component 300 together enclose a receiving cavity 910, so that the head of the patient 940 can enter the receiving cavity 910 during a scanning examination. The upper component 300 is rotatably connected to the lower component 100, so that the upper component 300 can be opened or closed relative to the lower component 100 by rotation of the upper component 300 relative to the lower component 100, thereby facilitating the entry of the patient's head and neck into the receiving cavity 910.

[0076] Coil units 950 are provided in the lower component 100, side component 200, and upper component 300 for transmitting and receiving radio frequency signals. When the upper component 300, side component 200, and lower component 100 are connected, the coil units 950 are electrically connected via connecting lines 960. The upper component 300 and at least one side component 200 are configured to be interconnected, so that when the upper component 300 is flipped relative to the lower component 100, the side component 200 can move relative to the lower component 100 under the drive of the upper component 300, thereby adjusting the size of the accommodating cavity 910. This structural design allows the size of the accommodating cavity 910 to be adjustable, enabling the radio frequency coil assembly to fit more closely to the head and neck of patients 940 of different body sizes by adjusting the size of the accommodating cavity 910, thereby improving the signal-to-noise ratio of the radio frequency coil assembly.

[0077] It is understandable that the upper component 300, the side component 200, and the lower component 100 can be electrically connected to form a complete coil, or they can operate independently of each other.

[0078] Specifically, such as Figure 31 and Figure 32 As shown, the lower component 100, side component 200, and upper component 300 each include a housing and a coil unit for transmitting radio frequency fields and receiving detection signals. The coil unit is located inside the housing. When the upper component 300, side component 200, and lower component 100 are connected, the coil unit is electrically connected via a connecting line 960. In this embodiment, the rotation of the upper component 300 and the movement of the side component 200 relative to the lower component 100 are mainly achieved through mechanical connections between the structures on the housings of the side component 200, lower component 100, and upper component 300.

[0079] Specifically, a downwardly recessed arc-shaped groove is provided on the side of the lower component 100 facing the upper component 300 to adapt to the human body geometry, thereby improving the fit between the radio frequency coil assembly and the human head and neck during detection, and thus improving the signal-to-noise ratio.

[0080] For ease of understanding, the extending direction of the RF coil assembly's accommodating cavity 910 is referred to as the first direction X. Figure 1 The forward and backward directions are defined, wherein the extension direction of the RF coil assembly's accommodating cavity 910 is consistent with the extension direction of the human body during detection. The movement direction of the two side components 200 can be referred to as the second direction Y. Figure 1 The left and right directions in the middle; the arrangement direction of the upper component 300 and the lower component 100 is called the third direction Z, and the third direction Z is... Figure 1 The up and down directions within. For example... Figure 3As shown, in one embodiment, the radio frequency coil assembly includes a pivot 500 connected to the upper component 300, and the pivot 500 is rotatable relative to the lower component 100. Relative rotation between the upper component 300 and the lower component 100 is achieved by connecting the pivot 500 to the upper component 300 and by configuring the pivot 500 to be rotatable relative to the lower component 100. Figure 3 and Figure 4 As shown, it can be understood that the specific structure for the detachable connection between the upper component 300 and the lower component 100 can be configured as follows: the upper component 300 is provided with a connector 310, and the lower component 100 is provided with a plug-in portion 110. Both the connector 310 and the plug-in portion 110 are provided with connectors 920. The plug-in portion 110 is provided with a plug-in interface. By inserting the connector 310 into the plug-in interface of the plug-in portion 110, the mechanical and electrical connection between the upper component 300 and the lower component 100 can be achieved. More specifically, a snap-fit ​​structure can be provided in the connector 310 and the plug-in portion 110 to achieve mutual positioning of the connector 310 and the plug-in portion 110. The pivot shaft 500 extends along the second direction, and the connector 310 extends along the third direction.

[0081] In one embodiment, the lower component 100 is provided with a pressing component 860, which can lock or unlock the upper component 300 relative to the lower component 100. By providing the pressing component 860 on the lower component 100, when the upper component 300 is installed on the lower component 100, the connection between the two can be locked by the pressing component 860, thereby preventing the upper component 300 from detaching from the lower component 100, and thus ensuring the reliability of use in scenarios where the upper and lower components are connected; when it is necessary to remove the upper component 300 from the lower component 100, the locking between the upper component 300 and the lower component 100 can be unlocked by pressing the pressing component 860, thereby facilitating the removal of the upper component 300 and the lower component 100.

[0082] like Figures 3 to 5 As shown, in this embodiment, the connector 310 is rotatably connected to the outer shell of the upper component 300 via a pivot shaft 500. When the connector 310 is inserted into the plug portion 110, the connector 310 is fixed relative to the lower component 100. By rotating the outer shell of the upper component 300, the upper component 300 can be rotated relative to the lower component 100. Figures 5 to 8As shown, in one embodiment, the radio frequency coil assembly includes a linkage component 600. The side component 200 is connected to the pivot shaft 500 via the linkage component 600 to achieve linkage between the side component 200 and the upper component 300. By connecting the connecting component to the pivot shaft 500, the rotation of the pivot shaft 500 relative to the connector drives the linkage component 600 and the pivot shaft 500 to move, thereby causing the side component 200 to move relative to the lower component 100 via the linkage component 600.

[0083] Specifically, when the upper component 300 is rotated so that it opens relative to the lower component 100, the two side components 200 move away from each other under the drive of the linkage component 600, thereby increasing the distance between the two coil units and making the space of the accommodating cavity 910 of the radio frequency coil assembly larger, so that the head and neck of patients of different body sizes can enter the accommodating cavity 910.

[0084] It should be noted that when the distance between the two side components 200 is adjusted to its maximum under the linkage of the upper component 300, the two side components 200 are locked relative to the lower component 100, thus the two side components 200 are no longer linked with the upper component 300. This can be understood as follows: when the relative distance between the two side components 200 is adjusted to its maximum and the side components 200 are locked to the lower component 100, rotating the upper component 300 will not cause the side components 200 to move relative to the lower component 100. If it is necessary for the side components 200 to connect with the upper component 300, the lock between the side components 200 and the lower component 100 needs to be unlocked.

[0085] like Figures 5 to 8 As shown, in one embodiment, the linkage assembly 600 includes a drive gear 610, a drive shaft 620, a drive rack 630, and a sliding block 640. The drive gear 610 is fixedly connected to the pivot shaft 500; one end of the drive shaft 620 is provided with a driven gear 670 that meshes with the drive gear 610, and the other end is provided with a driven gear, and the drive shaft 620 is rotatably connected to the lower component 100; the drive rack 630 is movably connected to the lower component 100, and the drive rack 630 meshes with the driven gear; the sliding block 640 is connected to the side component 200, and the sliding block 640 is fixed relative to the side component 200, and the sliding rack is linked with the drive rack 630 to drive the side component 200 to move relative to the lower component 100, so that the distance between the two side components 200 is increased.

[0086] By fixing the driving gear 610 to the pivot shaft 500, the pivot shaft 500 rotates along with the upper component 300 when the upper component 300 rotates, thus causing the driving gear 610 to rotate relative to the lower component 100. Driven gears 670 are provided at both ends of the transmission shaft 620. One driven gear 670 meshes with the driving gear 610, so that the driving gear 610 drives the driven gear 670 to rotate, thereby driving the transmission shaft 620 to rotate. At the other end of the transmission shaft 620, a driven gear 670 is provided to drive the transmission rack 630 to rotate relative to the lower component 100, thereby driving the sliding block 640 to move relative to the lower component 100. Since the sliding block 640 is fixed relative to the side component 200, the movement of the sliding block 640 relative to the lower component 100 also drives the side component 200 to move relative to the lower component 100, thus achieving linkage between the upper component 300 and the side component 200.

[0087] Specifically, the drive shaft 620 is rotatably connected to the side of the connector 310. A protective sleeve 680 is provided on the outside of the drive shaft 620, which extends along a third direction. It is understood that a single long pivot shaft 500 can be provided in the upper component 300 for pivotal connection to the connector 310; alternatively, two spaced-apart pivot shafts 500 can be provided for pivotal connection to the connector 310. Regardless of the number of pivot shafts 500, a drive shaft 620 is provided on both sides of the connector 310 along the second direction. A driving gear 610 is provided at the end of each pivot shaft 500 corresponding to each drive shaft 620. Both the driving gear 610 and the driven gear 670 are bevel gears, which convert the transmission direction from the first direction to the third direction. A transmission rack 630 is provided in the lower component 100 and moves along the first direction. As the transmission rack 630 moves along the first direction, the sliding block 640 moves along the second direction under the drive of the transmission rack 630. Each transmission shaft 620 corresponds to a side component 200, thereby driving the corresponding side component 200 to move relative to the lower component 100.

[0088] like Figures 5 to 8 As shown, specifically, the linkage assembly 600 also includes a guide drive block 650, which is fixedly connected to the transmission rack 630. The guide drive block 650 includes a guide slope 651, which is inclined to the extension direction of the transmission rack 630. The sliding block 640 abuts against the guide slope 651. When the transmission rack 630 moves relative to the lower component 100 along the first direction, the sliding block 640 moves along the second direction under the drive of the guide slope 651. The first direction and the second direction intersect.

[0089] By providing a guide drive block 650 on the transmission rack 630 and a guide ramp 651 on the guide drive block 650, the sliding block 640 can move along the second direction under the force of the guide ramp 651 during the movement of the transmission rack 630 along the first direction. In this way, the movement of the sliding block 640 can be driven by the transmission rack 630.

[0090] Specifically, when the transmission rack 630 is installed into the housing of the lower component 100, the extension direction of the transmission rack 630 is along the first direction, and the angle between the guide slope 651 and the transmission rack 630 is an obtuse angle. The surface of the sliding block 640 that abuts against the guide slope 651 of the guide drive block 650 is constructed as a slope to increase the contact area between the sliding block 640 and the guide slope 651, thereby making the movement of the sliding block 640 more stable.

[0091] Furthermore, a guide rail 120 is provided on the outer shell of the lower component 100, extending along the second direction. One side of the sliding block 640 is fixedly connected to the side component 200, and the side of the sliding block 640 opposite to the side component 200 is slidably connected to the guide rail 120. Thus, as the transmission rack 630 moves along the first direction, the sliding block 640 moves along the guide rail 120 under the force of the guide inclined surface 651.

[0092] like Figures 5 to 8 As shown, in one embodiment, when the sliding block 640 moves along the guide ramp 651 to abut against the end of the guide drive block 650 away from the transmission rack 630, the distance between the two side components 200 is at its maximum. At this time, the side component 200 and the upper component 300 are no longer linked. When the sliding block 640 moves to abut against the end face of the guide drive block 650 away from the transmission rack 630, even if the transmission rack 630 continues to move along the first direction, the guide ramp 651 of the guide drive block 650 no longer applies force to the sliding block 640. Thus, the sliding block 640 will no longer move along the second direction. At this time, if the upper component 300 continues to rotate, the side component 200 no longer moves relative to the lower component 100. That is to say, the upper component 300 and the side component 200 lose their linkage.

[0093] Specifically, the end face of the guide drive block 650 facing away from the transmission rack 630 is constructed as a plane and is parallel to the transmission rack 630. Correspondingly, the surface of the sliding block 640 that abuts against the end face of the guide drive block 650 facing away from the transmission rack 630 is constructed as a plane, and the two are in close contact with each other.

[0094] It is understood that, in order to improve the smoothness of movement of the side component 200, in this embodiment, at least two guide drive blocks 650 are provided at intervals in the extension direction of the transmission rack 630, and correspondingly, each guide drive block corresponds to a sliding block.

[0095] like Figures 5 to 8 As shown, in one embodiment, the linkage component 600 further includes a sliding base 660, which is fixedly connected to the sliding block 640. The side component 200 is detachably connected to the sliding base 660. A connector 920 is provided on the sliding base 660, and the connector 920 is electrically connected to the lower component 100. Specifically, the sliding base 660 is connected to the guide rail 120 provided on the lower component 100 through the sliding block 640, so that the sliding base 660 can move relative to the lower component. The detachable connection between the sliding base 660 and the side component 200 enables a detachable connection between the side component 200 and the lower component 100. Furthermore, the connector 920 on the sliding base 660 enables an electrical connection between the lower component 100 and the side component 200.

[0096] In one embodiment, the linkage component 600 further includes a first elastic element connected to the sliding block 640 and abutting against the lower component 100; wherein, when the two side components 200 move away from each other, the first elastic element is compressed, and the first elastic element provides power for the two side components 200 to move closer to each other.

[0097] like Figures 5 to 8 As shown, specifically, a cylindrical guide is provided at the end of the sliding block 640 opposite to the transmission rack 630, and a first elastic member is disposed within the guide. One end of the first elastic member abuts against the sliding block 640, and the other end abuts against the limiting protrusion 711 on the guide rail 120. When the sliding block 640 moves to its maximum distance from the transmission rack 630, the first elastic member is compressed. The sliding block 640 abuts against the end of the guide drive block 650 opposite to the transmission rack 630. When the upper component 300 is flipped in the opposite direction, that is, when it is closed in the direction closer to the lower component 100, the driving gear 610 rotates under the drive of the pivot shaft 500, and the transmission rack 630 moves along the first direction under the drive of the driven gear. Initially, since the sliding block 640 and the guide drive block 650 are in planar contact, the transmission rack 630 and the sliding block 640 only move relative to each other along the first direction. At this time, the first elastic element applies a restoring force to the sliding block 640 in the direction of the transmission rack 630. When the transmission rack 630 moves to the point where the inclined surface on the sliding block 640 contacts the guide inclined surface 651 on the guide drive block 650, the sliding block 640 moves towards the transmission rack 630 under the restoring force of the first elastic element, thereby driving the side component 200 to move towards the transmission rack 630, thus realizing the mutual return of the two side components 200.

[0098] It should be understood that the number of side components 200, their installation positions, and whether they are fixed or detachable from the lower component 100 can be set according to the specific application scenario.

[0099] For example, in one embodiment, there are two side components 200, with the side component 200 at the left end of the lower component 100 detachably connected to the lower component 100, and the side component 200 at the right end of the lower component 100 fixedly connected to the lower component 100. In another embodiment, a single side component 200 may be provided, and this side component 200 is located at the left end of the lower component 100, and the side component 200 is detachably connected to the lower component 100.

[0100] In one embodiment, there are two side components 200, with the right side component 200 detachably connected to the lower component 100 and the left side component 200 fixedly connected to the lower component 100. In another embodiment, there is one side component 200 disposed at the right end of the lower component 100, and the side component 200 is detachably connected to the lower component 100.

[0101] In one embodiment, the side components 200 at the left and right ends of the lower component 100 are detachably connected to the lower component 100, and the upper component 300 can simultaneously drive both side components 200, and the two side components 200 lock relative to the lower component 100 after moving to a set position. The detachable connection between the side components 200 and the lower component 100 can adopt the following structure:

[0102] like Figures 9 to 12 As shown, in one embodiment, the RF coil assembly further includes a locking component 700. The side component 200 is detachably connected to the lower component 100 via the locking component 700. After the side component moves to a set position, the locking component 700 can lock the movement of the side component 200 relative to the lower component 100. By detachably connecting the RF coil assembly to the lower component 100 via the locking component 700, the side component 200 and the lower component 100 are detachable, facilitating flexible installation of the side component 200 according to different usage scenarios. Furthermore, by locking the movement of the side component 200 relative to the lower component 100 via the locking component 700, when the side component 200 is adjusted to a preset position relative to the lower component 100, the movement of the side component 200 can be locked by the locking component 700, thereby improving the stability and reliability during use in the corresponding usage scenarios.

[0103] Specifically, the locking assembly 700 includes a sleeve 710, a locking member 720, and a knob 730. The sleeve 710 is fixedly connected to the lower component 100; the locking member 720 is rotatably connected to the side component 200, and the locking member 720 is detachably connected to the sleeve 710; the knob 730 is fixedly connected to the locking member 720; wherein, after the side component 200 moves to the set position, a portion of the knob 730 can abut against the end of the lower component 100 to restrict the movement of the side component 200 relative to the lower component 100.

[0104] By fixing the sleeve 710 to the lower component 100 and rotatably connecting the locking member 720 to the side component 200, and detachably connecting the locking member 720 to the sleeve 710, a detachable connection between the side component 200 and the lower component 100 is achieved. When the side component 200 moves to a set position, a portion of the knob 730 abuts against the end of the lower component 100 to limit the side component 200, preventing it from moving relative to the lower component 100, thus keeping the side component 200 in the preset position. Figure 11 and Figure 12 As shown, in one embodiment, the knob 730 is provided with a protrusion 731. When the distance between the two side parts 200 is at its maximum, the knob 730 can be operably rotated, and the protrusion 731 can abut against the lower part 100 to lock the side part 200 relative to the lower part 100.

[0105] By providing a protrusion 731 on the knob 730, the movement of the side component 200 relative to the lower component 100 is locked by the mutual abutment between the knob 730 and the lower component 100.

[0106] Specifically, after rotating the knob 730 to lock the side component 200 and the sliding base 660, if the distance between the left and right side components 200 is at its maximum, rotating the knob 730 causes the protrusion 731 on the knob 730 to abut against the lower component 100. This mutual abutment between the protrusion 731 and the lower component 100 creates a limit, thereby locking the movement of the side component 200 relative to the lower component 100. Since the left and right side components 200, the sliding base 660, and the sliding block 640 are fixedly connected at this time, this limit will brake the sliding of the sliding block 640. Therefore, the transmission rack 630 and the sliding block 640 no longer have a moving relationship, and the flipping of the upper component 300 no longer affects the left and right side components 200; both side components 200 remain in their maximum position.

[0107] For the detachable connection between the locking element and the sleeve, the locking element 720 can be driven to rotate relative to the sleeve 710 by operably rotating the knob 730, thereby locking the locking element 720 to the sleeve 710.

[0108] Specifically, the sleeve 710 is fixedly connected to the sliding base 660. The locking member 720 is rotatably connected to the side component 200, and the connection between the locking member 720 and the sleeve 710 enables a detachable connection between the side component 200 and the sliding base 660. This allows for both movement of the side component 200 relative to the lower component 100 and detachment of the side component 200 from the lower component 100. A knob 730 is fixedly connected to the locking member 720, allowing the operator to apply force to the locking member 720, thereby enabling rotation of the locking member 720 relative to the side component 200.

[0109] Specifically, the side component 200 includes a side plate, a locking member 720 rotatably connected to the side plate, and a knob 730 facing outwards for easy operation by the operator.

[0110] like Figure 9 As shown, in one embodiment, a limiting groove 721 is provided on the outer peripheral surface of the locking member 720 away from the knob 730; a limiting protrusion 711 is provided on the inner peripheral surface of the sleeve 710, and the limiting protrusion 711 cooperates with the limiting groove 721 to prevent the locking member 720 from disengaging from the sleeve 710.

[0111] By providing a limiting groove 721 at the end of the locking member 720 and a limiting protrusion 711 on the inner circumferential surface of the sleeve 710, the locking member 720 and the sleeve 710 are mutually limited through the mutual cooperation of the limiting protrusion 711 and the limiting groove 721, thereby realizing the detachable connection between the side component 200 and the lower component 100.

[0112] like Figure 9 As shown, the limiting groove 721 further includes a spiral groove segment 7211 and a transverse groove segment 7212 that are connected to each other. The extension direction of the transverse groove segment 7212 is perpendicular to the axis of the locking member 720. The structure of the limiting protrusion 711 is consistent with that of the limiting groove 721. When the transverse protrusion segment of the limiting protrusion 711 matches the transverse groove segment 7212, the transverse groove segment 7212 and the transverse protrusion limit each other to restrict the locking member 720 from disengaging from the sleeve 710.

[0113] By configuring the limiting groove 721 into interconnected spiral groove segments 7211 and transverse groove segments 7212, and by configuring the limiting protrusion 711 to match the shape of the limiting groove 721, rotating the locking member 720 causes the limiting groove 721 on the locking member 720 to tighten along its spiral direction with the limiting protrusion 711 on the sleeve 710. When the transverse protrusion on the limiting protrusion 711 matches the transverse groove segment 7212 within the limiting groove 721, the transverse protrusion and the groove wall of the transverse groove segment 7212 mutually limit each other, thereby preventing the locking member 720 from disengaging from the sleeve 710 along its axial direction. This structural design is simple and easy to install and disassemble.

[0114] It is understood that in this embodiment, the rotation angle of the spiral groove segment 7211 on the locking member 720 is 90 degrees. That is, when the side member 200 and the lower member 100 are installed together, the locking member 720 and the sleeve 710 can be connected by rotating the knob 730 by 90 degrees.

[0115] like Figure 9 As shown, in one embodiment, an anti-rotation protrusion 722 is also constructed on the outer peripheral surface of the locking member 720. The anti-rotation protrusion 722 is disposed between the limiting groove 721 and the knob 730. The end face of the anti-rotation protrusion 722 facing the knob 730 is provided with anti-rotation protrusions 7221 spaced apart. The locking assembly 700 also includes an anti-rotation pressing block 740. The anti-rotation pressing block 740 is movably connected to the side member 200 and sleeved on the locking member 720. The end face of the anti-rotation pressing block 740 facing the anti-rotation protrusion 7221 is provided with an anti-rotation recess 741. The anti-rotation protrusion 7221 and the anti-rotation recess 741 are in a convex-concave fit to restrict the rotation of the locking member 720.

[0116] By constructing an anti-rotation protrusion 722 on the outer peripheral surface of the locking member 720, and providing spaced anti-rotation protrusions 7221 on the end face of the anti-rotation protrusion 722 facing the knob 730, the anti-rotation protrusion 722 is movably connected to the side member 200 and sleeved on the locking member 720, allowing the anti-rotation pressure block 740 to move relative to the locking member 720. Furthermore, by providing an anti-rotation recess 741 on the anti-rotation pressure block 740, the anti-rotation protrusion 722 and the anti-rotation recess 741 engage to lock the rotation of the locking member 720.

[0117] It is understood that the anti-rotation pressing block 740 can only move in a straight line relative to the side component 200, and cannot rotate relative to the side component 200. Specifically, the anti-rotation pressing block 740 has a ring structure, and two limiting blocks are provided on the outer peripheral surface of the anti-rotation pressing block 740, which are arranged opposite each other along the radial direction of the anti-rotation pressing block 740. A guide groove is provided on the side plate of the side component 200, and the limiting blocks are movably embedded in the guide groove so that the anti-rotation pressing block 740 can only move along the extension direction of the guide groove.

[0118] The anti-rotation protrusion 722 is arranged in a ring around the circumference of the locking member 720. The end face of the anti-rotation protrusion 7221 is provided with tooth-shaped anti-rotation protrusions 7221. The anti-rotation groove on the anti-rotation pressure block 740 corresponds to the anti-rotation protrusions 7221.

[0119] like Figure 10 As shown, in one embodiment, the locking assembly 700 further includes a second elastic member 750, which is sleeved on the locking member 720. The two ends of the second elastic member 750 abut against the anti-rotation pressure block 740 and the knob 730, respectively. The second elastic member 750 provides a preload force for the cooperation between the anti-rotation pressure block 740 and the anti-rotation protrusion 7221.

[0120] Specifically, in this embodiment, the knob 730 is movable relative to the tightening member. By providing a second elastic member 750 between the anti-rotation pressure block 740 and the knob 730, the second elastic member 750 provides a pre-tightening force for the anti-rotation pressure block 740 and the anti-rotation protrusion 722 to engage.

[0121] Specifically, the second elastic element 750 is a spring, and it is sleeved on the locking element 720. The end of the locking element 720 that mates with the knob 730 is designed with a square structure. The knob 730 has a square mounting groove, and the square mounting groove of the knob 730 is mounted on the square structure of the locking element 720. When it is necessary to rotate the locking element 720, the knob 730 is pulled out along the axial direction of the locking element 720. At this time, the anti-rotation pressure block 740 moves away from the anti-rotation protrusion 722 along with the knob 730, so that the recess on the anti-rotation pressure block 740 moves away from the protrusion on the anti-rotation protrusion 722. Then, the knob 730 is rotated, and the locking element 720 rotates relative to the side component 200 under the rotation of the knob 730. When the locking member 720 is rotated to the preset position, the knob 730 is pushed toward the anti-rotation protrusion 722. The anti-rotation pressure block 740 moves toward the anti-rotation protrusion 722 and engages with the anti-rotation protrusion 7221 on the anti-rotation protrusion 722. At this time, the second elastic member 750 is in a compressed state. The anti-rotation pressure block 740 always maintains engagement with the anti-rotation protrusion 722 under the elastic force of the second elastic member 750, thereby ensuring that the locking member 720 will not rotate relative to the side component 200.

[0122] like Figures 20 to 28As shown, one embodiment of this utility model also provides a magnetic resonance imaging system, including a hospital bed 930 and a radio frequency coil assembly, the radio frequency coil assembly being supported on the surface of the hospital bed 930; the radio frequency coil assembly includes a lower component 100, a side component 200 and an upper component 300; the side component 200 is disposed at the end of the lower component 100, the lower component 100 and the upper component 300 are disposed vertically opposite each other; the lower component 100, the side component 200 and the upper component 300 are all provided with coil units 950; wherein, during the process of adjusting the upper component 300 relative to the lower component 100 from a closed state to an open state, the upper component 300 can drive at least one side component 200 to move relative to the lower component 100 to a locked position.

[0123] The radio frequency coil assembly described above is mounted on the bed 930 so that the patient 940 can be supine or lateral while undergoing scanning examination of the corresponding area. The upper component 300 and at least one side component 200 are configured to be interconnected, so that when the upper component 300 is flipped relative to the lower component 100, the side component 200 can move relative to the lower component 100 under the drive of the upper component 300, thereby adjusting the size of the accommodating cavity 910. This structural design allows for adjustable size of the accommodating cavity 910, enabling the radio frequency coil assembly to fit more closely to the head and neck of patients 940 of different body types, thus improving the signal-to-noise ratio of the radio frequency coil assembly.

[0124] In one embodiment, the lower component 100 is provided with a knob 730 for adjusting the angle. Rotating the knob 730 adjusts the tilt angle of the radio frequency coil assembly relative to the hospital bed. Specifically, the tilt angle ranges from 0 to 25°.

[0125] like Figures 13 to 19 As shown, in one embodiment, the radio frequency coil assembly further includes a base 400 and an angle adjustment mechanism 800. The lower component 100 is connected to the base 400 via the angle adjustment mechanism 800, so that the angle between the lower component 100 and the base 400 is adjustable. Specifically, when the radio frequency coil assembly is installed on the hospital bed 930, the base 400 is detachably connected to the hospital bed 930.

[0126] The lower component 100 is connected to the base 400 via an angle adjustment mechanism 800, making the angle between the lower component 100 and the base 400 adjustable. This allows the angle of the entire radio frequency coil assembly relative to the base 400 to be adjusted. Since the base 400 is connected to the hospital bed 930, adjusting the angle of the entire radio frequency coil assembly relative to the base 400 correspondingly adjusts the angle of the radio frequency coil assembly relative to the hospital bed 930. This makes the entire radio frequency coil assembly suitable for different user groups to adjust the angle.

[0127] like Figure 19 As shown, in one embodiment, the angle adjustment mechanism 800 includes a gear assembly 810, a worm gear 820, a connecting rod 830, and a turbine 840. The gear assembly 810 is connected to the lower component 100; the worm gear 820 is drivenly connected to the gear assembly 810; one end of the connecting rod 830 is hinged to the base 400; the turbine 840 is rotatably connected to the lower component 100, and the other end of the turbine 840 is fixedly connected to the connecting rod 830. The turbine 840 is drivenly connected to the worm gear 820. The gear assembly 810 drives the worm gear 820 to rotate, the worm gear 820 drives the turbine 840 to rotate, and the connecting rod 830 rotates relative to the base 400 under the force of the turbine 840.

[0128] The gear assembly 810 drives the worm gear 820 to rotate relative to the lower part 100, and the worm gear 820 drives the turbine 840 to rotate. The rotation of the turbine 840 drives the connecting rod 830 to rotate relative to the base 400, thereby supporting the lower part 100 relative to the base 400.

[0129] like Figure 19 As shown, specifically, the gear assembly 810 includes a first bevel gear 811, a first transmission rod 812, and a second transmission rod 813. The first bevel gear 811 is rotatably connected to the lower component 100. The two ends of the first transmission rod 812 are respectively connected to second bevel gears 814, and one of the second bevel gears 814 meshes with the first bevel gear 811. One end of the second transmission rod 813 is connected to a third bevel gear 815, and the other end is connected to a worm gear 820. The third bevel gear meshes with the second bevel gear 814.

[0130] Specifically, the first bevel gear 811 is connected to the housing of the insertion part 110 of the lower component 100 via a rotating shaft, and a handle 850 is provided at the end of the rotating shaft opposite to the first bevel gear 811, so that the first bevel gear 811 can be driven to rotate by manually rotating the handle 850. Two first transmission rods 812 extend in a V-shape to both ends of the lower component 100 along the second direction. Two second bevel gears 814 on the first transmission rods 812 mesh with the third bevel gears 815 on the first bevel gear 811 and the second transmission rod 813, thereby enabling the worm gear 820 to rotate by rotating the handle 850. It can be understood that in this embodiment, the extension direction of the worm gear 820 and the second transmission rod 813 is along the first direction. In this way, the gear assembly 810 drives the worm gear 820 to rotate, the worm gear 820 drives the turbine 840 to rotate, and the turbine 840 drives the connecting rod 830 to rotate relative to the base 400, thereby lifting the radio frequency coil assembly. Since the turbine 840 and worm gear 820 themselves have a self-locking function, they can be fixed at any position within the design angle.

[0131] By adjusting the angle of the radio frequency coil assembly relative to the hospital bed 930 and the base 400 through the angle adjustment mechanism 800, stepless adjustment of the radio frequency coil assembly relative to the hospital bed 930 and the base 400 can be achieved, thereby improving the flexibility of the radio frequency coil.

[0132] It should be noted that, in order to improve the compactness of the radio frequency coil assembly, in this embodiment, the button of the pressing assembly 860 is located inside the handle 850. Specifically, a mounting hole concentric with the outer peripheral surface of the handle 850 is provided on the handle 850, and the button is movably disposed in the mounting hole. The handle 850 can rotate relative to the button, and the button can move along the axis of the handle 850, thereby pressing the button assembly 860. When the handle 850 is rotated, the angle adjustment mechanism 800 can be controlled through the handle 850, thereby realizing the angle adjustment between the radio frequency coil assembly and the base 400 and the hospital bed 930. Pressing the button can lock or unlock the connection between the upper component 300 and the lower component 100.

[0133] It is understood that the radio frequency coil assembly provided in this embodiment allows for the separate removal of the upper component 300 and the side component 200 according to different patient positioning requirements. Furthermore, designing the upper component 300 and the side component 200 to be detachable from the lower component 100 offers advantages in terms of ease of maintenance and cleaning. Figures 20 to 28 As shown, the radio frequency coil assembly provided in this embodiment can be installed on a hospital bed 930. After installation on the hospital bed 930, the corresponding coil unit can be removed according to different needs, and the tilt angle of the radio frequency coil assembly can also be adjusted to serve special populations. Connectors 920 and locking / unlocking structures are designed at all coil removal points, providing a good user experience; the tilt angle of the radio frequency coil assembly is adjustable via rotation, steplessly adjustable, and can be positioned at any angle from 0-25 degrees, offering better adaptability.

[0134] Specifically, for different use cases, in some embodiments, such as Figure 15 As shown, a side component 200 can be installed on each of the left and right sides of the lower component 100, and an upper component 300 can be installed on the upper part of the lower component 100; the two side components 200 can be simultaneously linked with the upper component 300; alternatively, one of the two side components 200 can be linked with the upper component 300, while the other is fixed relative to the lower component 100. Figure 16 , Figure 17 and Figure 29 As shown, a side component 200 can be installed on the left side of the lower component 100, and an upper component 300 can be installed on top. The upper component 300 and the left side component 200 are linked. This application scenario is suitable for lateral scanning. Alternatively, as shown... Figure 18As shown, only the upper component 300 is mounted on the lower component 100, and the upper component 300 is rotatable relative to the lower component 100. It is understood that the above-described usage configuration still applies when the radio frequency coil assembly is mounted on and moved onto the hospital bed 930. For example, as... Figure 22 and Figure 30 As shown, side components 200 can be provided on the left and right sides of the lower component 100, with their tops open. This configuration is suitable for supine scanning. Alternatively, as shown... Figure 24 As shown, the side component 200 is provided only on the left side of the lower component 100, and no components are provided on its right side and top.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0136] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A radio frequency coil assembly for a magnetic resonance imaging system, characterized in that, The radio frequency coil assembly includes: Lower component; A side component is disposed at the end of the lower component; The upper component is rotatably connected to the lower component; The lower component, the side component, and the upper component together enclose and form an accommodating cavity, and each of the lower component, the side component, and the upper component is provided with a coil unit; During the process of adjusting the upper component from a closed state to an open state relative to the lower component, the upper component can move at least one of the side components relative to the lower component to a set position.

2. The radio frequency coil assembly for a magnetic resonance imaging system according to claim 1, characterized in that, The side components are two in number; the left side component of the lower component is detachably connected to the lower component, and the right side component of the lower component is fixedly connected to the lower component; or... The side component is a single component located at the left end of the lower component, and the side component is detachably connected to the lower component.

3. The radio frequency coil assembly for a magnetic resonance imaging system according to claim 1, characterized in that, The side components are two in number; the right side component of the lower component is detachably connected to the lower component, and the left side component of the lower component is fixedly connected to the lower component; or... The side component is a single component located at the right end of the lower component, and the side component is detachably connected to the lower component.

4. The radio frequency coil assembly for a magnetic resonance imaging system according to claim 1, characterized in that, The left and right side components of the lower component are detachably connected to the lower component. The upper component can simultaneously link the two side components, and the two side components are locked relative to the lower component after moving to a set position.

5. The radio frequency coil assembly for a magnetic resonance imaging system according to claim 4, characterized in that, The radio frequency coil assembly also includes a locking component. The side component is detachably connected to the lower component via the locking component. After the side component moves to the set position, the locking component can lock the movement of the side component relative to the lower component.

6. The radio frequency coil assembly for a magnetic resonance imaging system according to claim 5, characterized in that, The locking component includes: The sleeve is fixedly connected to the lower component; A locking element is rotatably connected to the side component, and the locking element is detachably connected to the sleeve; The knob is fixedly connected to the locking component; When the side component moves to the set position, a portion of the knob can abut against the end of the lower component to restrict the movement of the side component relative to the lower component.

7. The radio frequency coil assembly for a magnetic resonance imaging system according to any one of claims 1-6, characterized in that, The lower component is provided with a pressing component, which can lock or unlock the upper component relative to the lower component.

8. A magnetic resonance imaging system, characterized in that, include: Hospital bed; A radio frequency coil assembly is mounted on the surface of the hospital bed; the radio frequency coil assembly includes a lower component, a side component, and an upper component. The side component is disposed at the end of the lower component, and the lower component is disposed vertically opposite to the upper component; The lower component, the side component, and the upper component are all provided with coil units; During the process of adjusting the upper component from a closed state to an open / closed state relative to the lower component, the upper component can move at least one of the side components relative to the lower component to a locked position.

9. The magnetic resonance imaging system according to claim 8, characterized in that, The lower component is equipped with a knob for adjusting its position. Rotating the knob can adjust the tilt angle of the radio frequency coil assembly relative to the hospital bed.

10. The magnetic resonance imaging system according to claim 9, characterized in that, The tilt angle ranges from 0 to 25°.

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