Magnetic resonance up-down opening and closing coil and magnetic resonance imaging device

Abstract

The utility model relates to a magnetic resonance up-down opening and closing coil and a magnetic resonance imaging device, and the magnetic resonance up-down opening and closing coil comprises an upper coil, two locking assemblies, a lower coil, an elastic assembly corresponding to the locking assemblies, an operation unit, and a traction part corresponding to the locking assemblies. The two locking assemblies are arranged on the two sides of the upper coil in the radial direction respectively, and each locking assembly is provided with a locking position and an unlocking position; the two sides of the lower coil in the radial direction are each provided with a matching structure used for being matched with the locking assembly in a locking mode. The elastic assemblies are arranged on the upper coil, the locking assemblies are connected to the upper coil through the corresponding elastic assemblies, and the elastic assemblies are used for driving the corresponding locking assemblies to be located at the locking positions; the operation unit is arranged on the upper coil, one end of each traction piece is connected with the operation unit, and the other end of each traction piece is connected with the corresponding locking assembly; the operation unit operably drives the traction pieces to move.

Description

Technical Field

[0001] This application relates to the field of medical technology, and in particular to a magnetic resonance up-and-down opening coil and a magnetic resonance imaging device. Background Technology

[0002] The magnetic resonance imaging (MRI) device includes upper and lower tethered coils, which are electrically connected. During MRI scanning, the upper and lower coils are engaged and must not detach or loosen to prevent electrical connection failure or unstable signal transmission. Before and after scanning, the upper and lower coils are partially separated to allow for placement and removal of the scanned area. Based on the workflow requirements of the upper and lower tethered coils, a locking mechanism is needed when the coils are engaged to prevent detachment or loosening; and a release mechanism is needed before and after scanning to facilitate smooth separation of the upper and lower coils.

[0003] In related technical fields, for common magnetic resonance up-and-down coils, the locking and releasing mechanisms are generally arranged on both sides of the coil radially. This means that locking and releasing mechanisms are located on both sides of the coil, requiring simultaneous operation with both hands to lock and release the upper and lower coils. For larger magnetic resonance up-and-down coils, due to the larger size span, operators may find it difficult to operate with both hands simultaneously, and must unlock one side first, then the other. This results in asynchronous release mechanisms, with one side unlocked while the other remains locked, requiring more than one operation to fully unlock, impacting the user experience. Utility Model Content

[0004] Therefore, it is necessary to provide a magnetic resonance up-and-down opening coil and a magnetic resonance imaging device to address the problem of unlocking and synchronizing the magnetic resonance up-and-down opening coil.

[0005] A magnetic resonance up-and-down switching coil, the magnetic resonance up-and-down switching coil comprising:

[0006] Upper coil;

[0007] Two locking components are respectively disposed on both sides of the upper coil along the radial direction, and the locking components have a locked position and an unlocked position;

[0008] The lower coil has a locking structure on both sides along the radial direction for locking with the locking assembly;

[0009] An elastic component is provided corresponding to the locking component. The elastic component is disposed on the upper coil, and the locking component is connected to the upper coil through the corresponding elastic component. The elastic component is used to drive the corresponding locking component to be in the locked position.

[0010] The system includes an operating unit and a traction member corresponding to the locking component. The operating unit is located on the upper coil, and there are multiple traction members. One end of each traction member is connected to the operating unit, and the other end of each traction member is connected to the corresponding locking component. The operating unit can operably drive the multiple traction members to move, so that the traction members can drive the corresponding locking component to the unlock position.

[0011] In one embodiment, the locking component includes:

[0012] A first locking member and a second locking member are arranged at axial intervals along the upper coil; and

[0013] A lever, wherein the lever is connected to one end of the traction member, and both ends of the lever abut against the first locking member and the second locking member, respectively;

[0014] The elastic component includes a first elastic element and a second elastic element, and the mating structure includes a first mating groove that engages with the first locking element and a second mating groove that engages with the second locking element.

[0015] In one embodiment, the first locking member and the second locking member are rotatably connected to the upper coil, and the contact position between the first locking member and the toggle block is located between the rotation center of the first locking member and the locking end of the first locking member, and the contact position between the second locking member and the toggle block is located on the side of the rotation center of the second locking member away from the locking end of the second locking member.

[0016] The traction member is configured to move along the axial direction toward the first locking member, so that the locking end of the first locking member and the locking end of the second locking member are opposite to each other.

[0017] In one embodiment, the traction member includes a traction rope and a guide assembly. One end of the traction rope is connected to the operating unit and the other end is connected to the lever. The guide assembly is disposed on the upper coil and has a limiting part for the traction rope to pass through.

[0018] In one embodiment, the first locking member and the second locking member are rotatably connected to the upper coil, and the abutment position of the first locking member and the toggle block is located on the side of the rotation center of the first locking member away from the locking end of the first locking member, and the abutment position of the second locking member and the toggle block is located on the side of the rotation center of the second locking member away from the locking end of the second locking member.

[0019] The traction member is configured to move circumferentially along the upper coil so that the locking end of the first locking member and the locking end of the second locking member are opposite to each other.

[0020] In one embodiment, the traction member includes a guide belt, one end of which is connected to the operating unit and the other end of which is connected to the corresponding paddle. The guide belt slides in conjunction with the upper coil, and the sliding direction of the guide belt is the circumferential direction of the upper coil.

[0021] In one embodiment, the operating unit includes a base, an operating part, and a reset part. The base and the operating part are both disposed on the upper coil, and the operating part is slidably engaged with the upper coil. One end of the reset part is connected to the operating part, and the other end abuts against the base. The operating part is connected to the traction member, and the reset part is used to drive the operating part to reset by its own elastic force.

[0022] In one embodiment, two operating parts and two reset parts are provided, and the two operating parts and two reset parts are connected in a one-to-one correspondence. The two operating parts are arranged at intervals along the axial direction of the upper coil, and the two traction members are connected to the same operating part.

[0023] The operating unit further includes a first rack, a transmission gear, and a second rack. The first rack is connected to one of the operating parts, and the second rack is connected to the other operating part. The first rack and the second rack are respectively located on both sides of the transmission gear and are both connected to the transmission gear.

[0024] In one embodiment, an ejection unit is further included, the ejection unit including a guide post, a top-release cap, a guide post elastic element, and an elastic sleeve. The guide post is disposed on the lower coil, the elastic sleeve is disposed on the upper coil, the top-release cap portion extends into the elastic sleeve and is engaged with the elastic sleeve, and the guide post elastic element is disposed in the elastic sleeve and located between the elastic sleeve and the top-release cap.

[0025] When in the locked position, the guide post abuts against the top cap, and the guide post elastic element is in a compressed state. When in the unlocked position, the guide post elastic element pushes the upper coil and the lower coil apart through its own elastic force.

[0026] This application also provides a magnetic resonance imaging device, comprising:

[0027] Magnetic resonance scanner, with a scanning cavity;

[0028] A scanning bed, coupled to the magnetic resonance scanner, is movable into the scanning cavity;

[0029] Upper coil,

[0030] The lower coil is detachably mounted on the scanning bed. The upper coil and the lower coil are connected separately from each other, and when the upper coil is supported on the lower coil, the two together form a receiving cavity.

[0031] Locking components are provided on both sides of the upper coil, and mating structures for locking with the locking components are provided on both sides of the lower coil.

[0032] Two traction components are connected to the locking assembly in a one-to-one correspondence;

[0033] The operating unit is connected to both of the aforementioned traction components. Pressing the operating unit left or right, or pressing the operating unit downwards, can simultaneously unlock the locking components on both sides of the upper coil and the mating structures on both sides of the lower coil.

[0034] In one embodiment, the upper coil and the lower coil can form a transmitting coil or a transceiver coil;

[0035] The cavity formed by the upper coil and the lower coil together can accommodate at least one organ of the subject being tested, namely the abdomen, chest, shoulder, or limbs.

[0036] The aforementioned magnetic resonance upper and lower coils utilize two locking components on each radially side of the upper coil and mating structures on each radially side of the lower coil. When the locking components are in the locked position, they lock with the mating structures, thus locking the upper and lower coils. When the locking components are in the unlocked position, they disengage from the mating structures, thus unlocking the upper and lower coils. Two sets of elastic components are provided on the upper coil, each pushing its corresponding locking component into the locked position through its own elastic force. An operating unit and multiple traction components are provided on the upper coil, with the number of traction components corresponding to the two locking components. One end of each traction component is connected to the operating unit, and the other end is connected to the corresponding two locking components. By operating the operating unit, the operator moves the traction components synchronously, thereby moving the two locking components synchronously to the unlocked position. This allows for the unlocking of both locking components in a single operation, achieving complete separation of the upper and lower coils in one step, preventing a situation where one side is unlocked while the other remains locked. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the magnetic resonance imaging device provided in the embodiments of this application.

[0038] Figure 2 This is a schematic diagram of the structure of the magnetic resonance upper and lower opening and closing coils provided in the embodiments of this application.

[0039] Figure 3 This is a schematic diagram of the upper coil structure provided in an embodiment of this application.

[0040] Figure 4 This is a schematic diagram of the lower coil structure provided in an embodiment of this application.

[0041] Figure 5 This is a schematic diagram of the magnetic resonance upper and lower opening and closing coils in the locked position, as provided in Embodiment 1 of this application.

[0042] Figure 6 This is a schematic diagram of the magnetic resonance upper and lower opening and closing coils in the unlocked position, as provided in Embodiment 1 of this application.

[0043] Figure 7 This is a schematic diagram of the structure of the elastic component provided in Embodiment 1 of this application.

[0044] Figure 8 This is a first-view structural schematic diagram of the operating unit provided in Embodiment 1 of this application.

[0045] Figure 9 This is a structural schematic diagram of the operation unit provided in Embodiment 1 of this application from a second perspective.

[0046] Figure 10 This is a structural schematic diagram of the operating unit provided in Embodiment 1 of this application from a third-view perspective.

[0047] Figure 11 This is a schematic diagram of the structure of the upper coil with an operating unit and two traction ropes provided in Embodiment 1 of this application.

[0048] Figure 12 This is a schematic diagram of the structure of the upper coil with an ejector unit provided in Embodiment 1 of this application.

[0049] Figure 13 This is a schematic diagram of the ejection unit provided in Embodiment 1 of this application.

[0050] Figure 14 This is a schematic diagram of the structure of the guide post elastic element and the top cap assembly provided in Embodiment 1 of this application.

[0051] Figure 15 This is a first-view structural diagram of the operation unit and traction rope provided in Embodiment 2 of this application.

[0052] Figure 16 This is a second-view structural diagram of the upper coil with an operating unit and a traction rope provided in Embodiment 2 of this application.

[0053] Figure 17This is a first-view structural diagram of the upper coil with an operating unit and a guide belt provided in Embodiment 3 of this application.

[0054] Figure 18 This is a second-view structural diagram of the upper coil with an operating unit and a guide belt provided in Embodiment 3 of this application.

[0055] Figure 19 This is a schematic diagram of the structure of the operating unit provided in Embodiment 3 of this application.

[0056] In the picture:

[0057] 100. Upper coil; 110. Connector male terminal; 120. Guide hole;

[0058] 200, Lower coil; 210, First mating groove; 220, Second mating groove; 230, Connector female end; 240, Guide post;

[0059] 300. Locking assembly; 310. First locking member; 311. First rotation fulcrum; 320. Second locking member; 321. Second rotation fulcrum; 330. Toggle block; 331. Toggle block body; 332. First abutment part; 333. Second abutment part;

[0060] 400. Second elastic element;

[0061] 500, Operating unit; 510, Base; 520, Operating part; 530, Reset part; 540, First rack; 550, Transmission gear; 560, Second rack;

[0062] 610. Traction rope; 620. Guide assembly; 621. Guide wheel; 622. Limiting post; 630. Guide belt;

[0063] 700, Ejection unit; 710, Guide post elastic element; 720, Ejection cap; 730, Elastic sleeve. Detailed Implementation

[0064] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0065] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0066] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0069] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0070] This application provides a magnetic resonance up-and-down switching coil, such as Figures 1 to 9 As shown, the magnetic resonance up-and-down coil includes: an upper coil 100, two locking components 300, a lower coil 200, elastic components corresponding to the locking components 300, an operating unit 500, and traction components corresponding to the locking components 300. The two locking components 300 are respectively disposed on both sides of the upper coil 100 along the radial direction, and the locking components 300 have a locked position and an unlocked position. The lower coil 200 has mating structures on both sides along the radial direction for locking with the locking components 300. The elastic components are disposed on the upper coil 100, and the locking components 300 are connected to the upper coil 100 through corresponding elastic components. The elastic components are used to drive the corresponding locking components 300 to the locked position. The operating unit 500 is disposed on the upper coil 100. There are multiple traction components. One end of each traction component is connected to the operating unit 500, and the other end of each traction component is connected to the corresponding locking component 300. The operating unit 500 can operably drive the multiple traction components to move, so that the traction components can drive the corresponding locking components 300 to the unlocked position.

[0071] The aforementioned magnetic resonance upper and lower opening and closing coils utilize two locking components 300 on each radially side of the upper coil 100 and mating structures on each radially side of the lower coil 200. When the locking components 300 are in the locked position, they lock with the mating structures, thereby locking the upper coil 100 and the lower coil 200. When the locking components 300 are in the unlocked position, they disengage from the mating structures, thereby unlocking the upper coil 100 and the lower coil 200. Two sets of elastic components are provided on the upper coil 100, each set of elastic components using its own elastic force to push the corresponding locking component 300 into the locked position. By setting an operating unit 500 and multiple traction components on the upper coil 100, and setting the number of traction components corresponding to the two locking components 300, one end of each of the multiple traction components is connected to the operating unit 500, and the other end of each of the multiple traction components is connected to the corresponding locking component 300. When the operator operates the operating unit 500, the multiple traction components move synchronously, thereby driving the two locking components 300 to move synchronously to the unlock position. That is, unlocking can unlock both locking components 300 at once, and the upper coil 100 and the lower coil 200 can be completely separated at once, preventing the situation where one side is unlocked while the other side is not.

[0072] It should be noted that the number of traction components and the number of locking components 300 are set accordingly. In this embodiment, there are two traction components and two locking components 300. One end of each of the two traction components is connected to the operation unit 500, and the other end is connected to the two locking components 300 respectively.

[0073] like Figures 3 to 7 , Figure 11 as well as Figures 15 to 19 As shown, the locking assembly 300 includes: a first locking member 310 and a second locking member 320 arranged axially at intervals along the upper coil 100; and a lever 330, which is connected to one end of the traction member, and the two ends of the lever 330 abut against the first locking member 310 and the second locking member 320 respectively; the elastic assembly includes a first elastic member and a second elastic member 400, and the mating structure includes a first mating groove 210 that engages with the first locking member 310 and a second mating groove 220 that engages with the second locking member 320.

[0074] By setting a first locking member 310 and a second locking member 320, a first elastic member and a second elastic member 400 are provided on the upper coil 100. One end of the first elastic member is connected to the upper coil 100, and the other end abuts against the first locking member 310. One end of the second elastic member 400 is connected to the upper coil 100, and the other end abuts against the second locking member 320. A first mating groove 210 and a second mating groove 220 are provided on the lower coil 200. When in the locked position, the locking component 300 engages with the mating structure to lock, that is, the first elastic member locks through its own elasticity. The first locking member 310 is pushed into the first mating groove 210 by force, and the second elastic member 400 pushes the second locking member 320 into the second mating groove 220 by its own elastic force, thereby locking the upper coil 100 and the lower coil 200. When in the unlocked position, the locking component 300 separates from the mating structure, that is, the first locking member 310 exits the first mating groove 210 and compresses the first elastic member, and the second locking member 320 exits the second mating groove 220 and compresses the second elastic member 400, thereby unlocking the upper coil 100 and the lower coil 200. By setting a toggle block 330, the two ends of the toggle block 330 abut against the first locking member 310 and the second locking member 320 respectively, and a traction member is connected to the toggle block 330. The operation unit 500 drives the traction member to move, thereby driving the toggle block 330 to move, and thus switching the first locking member 310 and the second locking member 320 from the locked position to the unlocked position.

[0075] It should be noted that two sets of locking components 300 are provided on both sides of the upper coil 100 along the radial direction. Each set of locking components 300 is equipped with an elastic component, a mating structure and a traction component. Therefore, when the operator operates the operating unit 500, the two traction components can be driven to move synchronously, and the two sets of locking components 300 provided on both sides of the upper coil 100 along the radial direction can be unlocked synchronously.

[0076] Example 1:

[0077] like Figures 3 to 7 ,as well as Figure 11 As shown, the first locking member 310 and the second locking member 320 are rotatably connected to the upper coil 100, and the contact position between the first locking member 310 and the toggle block 330 is located between the rotation center of the first locking member 310 and the locking end of the first locking member 310. The contact position between the second locking member 320 and the toggle block 330 is located on the side of the rotation center of the second locking member 320 away from the locking end of the second locking member 320. The traction member is configured to move axially toward the first locking member 310 so that the locking end of the first locking member 310 and the locking end of the second locking member 320 are opposite to each other.

[0078] By placing one end of the lever 330 against the area between the rotation center and the locking end of the first locking member 310, and the other end of the lever 330 against the side of the rotation center of the second locking member 320 away from the locking end of the second locking member, when the operating unit 500 drives the traction member to move along the axial direction of the upper coil 100 towards the first locking member 310 (i.e., as... Figure 5 and Figure 6 (As shown in the horizontal leftward direction), at this time, the toggle block 330 pushes the locking end of the first locking member 310 out of the first mating groove 210, and the locking end of the second locking member 320 out of the second mating groove 220, thereby switching the locking assembly 300 from the locked position to the unlocked position. At this time, the first elastic member and the second elastic member 400 are in the compressed position. When the operator stops operating the operating unit 500, that is, when there is no external force to drive the traction member to continue moving along the axial direction of the upper coil 100 towards the first locking member 310, the first locking member 310 resets under the elastic force of the first elastic member, and the second locking member 320 resets under the elastic force of the second elastic member 400.

[0079] It should be noted that the locking end of the first locking member 310 refers to the end of the first locking member 310 that is engaged with the first mating groove 210, and the locking end of the second locking member 320 refers to the end of the second locking member 320 that is engaged with the second mating groove 220.

[0080] Specifically, such as Figures 3 to 7 ,as well as Figure 11 As shown, the lever 330 includes a lever body 331, a first abutting part 332 and a second abutting part 333. The first abutting part 332 and the second abutting part 333 are respectively disposed on both sides of the lever body 331, and the first abutting part 332 abuts against the first locking member 310, and the second abutting part 333 abuts against the second locking member 320.

[0081] More specifically, such as Figures 3 to 7 ,as well as Figure 11 As shown, the toggle block body 331 extends along the axial direction of the upper coil 100.

[0082] Specifically, such as Figures 3 to 7 ,as well as Figure 11 As shown, the first locking member 310 includes a first end and a second end. The first end is rotatably connected to the upper coil 100 via a first rotation fulcrum 311, and the second end is bent to form a locking end. The contact position between the first locking member 310 and the lever 330 is located between the rotation center of the first locking member 310 and the locking end of the first locking member, that is, the first contact portion 332 of the lever 330 abuts against the area between the first end and the second end. The lever 330 moves along the axial direction of the upper coil 100 towards the first locking member 310 (i.e., as...). Figure 5 and Figure 6(As shown in the horizontal left direction), the second end of the first locking member 310 can be pushed out of the first mating groove 210.

[0083] Specifically, such as Figures 3 to 7 ,as well as Figure 11 As shown, the second locking member 320 includes a third end and a fourth end. The area between the third end and the fourth end is connected to the upper coil 100 via a second rotation fulcrum 321. The fourth end is bent to form a locking end. The abutment position of the second locking member 320 and the lever 330 is located on the side of the rotation center of the second locking member 320 away from the locking end of the second locking member. That is, the second abutment portion 333 of the lever 330 abuts against the third end, and the third end is located between the first abutment portion 332 and the second abutment portion 333. The lever 330 moves along the axial direction of the upper coil 100 towards the first locking member 310 (i.e., as shown in the diagram). Figure 5 and Figure 6 (As shown in the horizontal left direction), at this time, the third end of the second locking member 320 moves towards the first locking member 310, and the fourth end moves away from the first locking member 310, thereby causing the second locking member 320 to exit the second mating groove 220.

[0084] Specifically, such as Figures 3 to 7 ,as well as Figure 11 As shown, the traction component includes a traction rope 610 and a guide assembly 620. One end of the traction rope 610 is connected to the operating unit 500, and the other end is connected to the lever 330. The guide assembly 620 is disposed on the upper coil 100, and a limiting part is provided on the guide assembly 620 for the traction rope 610 to pass through. By providing the guide assembly 620 on the upper coil 100, one end of the traction rope 610 is connected to the operating unit 500, and the other end passes through the limiting part of the guide assembly 620 and is connected to the lever 330. The traction rope 610 drives the lever 330 to move, while the guide assembly 620 guides and limits the movement direction of the traction rope 610.

[0085] More specifically, such as Figures 3 to 7 ,as well as Figure 11 As shown, the guide assembly 620 includes a guide wheel 621 and a limiting post 622. The circumferential area of ​​the guide wheel 621 forms a limiting part, and the limiting post 622 is provided with an inwardly recessed groove to form a limiting part. The traction rope 610 passes through the circumferential area of ​​the guide wheel 621 and the groove on the limiting post 622, thereby guiding and limiting the movement direction of the traction rope 610.

[0086] More specifically, the guide assembly 620 is provided in multiple ways, that is, multiple guide wheels 621 and multiple limit posts 622 are provided. The positions and arrangements of the multiple guide wheels 621 and multiple limit posts 622 are set according to the actual operation needs.

[0087] For example, in this embodiment, such as Figures 3 to 7 ,as well as Figure 11 As shown, by setting multiple guide wheels 621 and multiple limiting posts 622 on the upper coil 100, the traction rope 610 is arranged in a C-shape.

[0088] Furthermore, such as Figures 8 to 11 As shown, the operating unit 500 includes a base 510, an operating part 520, and a reset part 530. Both the base 510 and the operating part 520 are mounted on the upper coil 100, with the operating part 520 slidingly engaged with the upper coil 100. One end of the reset part 530 is connected to the operating part 520, and the other end abuts against the base 510. The operating part 520 is connected to the traction member, and the reset part 530 is used to reset the operating part 520 using its own elastic force. One end of the traction rope 610 is connected to the operating part 520, and the operator moves the operating part 520 relative to the upper coil 100, thus moving the traction rope 610. By providing the reset part 530, with one end connected to the operating part 520 and the other end abutting against the base 510, the reset part 530 can push the operating part 520 to slide in the opposite direction using its own elastic force, thereby completing the reset.

[0089] Specifically, such as Figures 8 to 11 As shown, there are two operation units 520 and two reset units 530, and the two operation units 520 and the two reset units 530 are connected in a one-to-one correspondence. The two operation units 520 are arranged at intervals along the axial direction of the upper coil 100, and the two traction members are connected to the same operation unit 520. The operation unit 500 also includes a first rack 540, a transmission gear 550 and a second rack 560. The first rack 540 is connected to one of the operation units 520, and the second rack 560 is connected to the other operation unit 520. The first rack 540 and the second rack 560 are respectively located on both sides of the transmission gear 550 and are both connected to the transmission gear 550.

[0090] By setting two operating parts 520, each operating part 520 is equipped with a corresponding reset part 530, and each reset part 530 can drive the corresponding operating part 520 to reset. A first rack 540, a transmission gear 550, and a second rack 560 are arranged between the two operating parts 520. By arbitrarily operating (pressing) either operating part 520, under the gear and rack transmission, the other operating part 520 will move synchronously towards the pressed operating part 520, thereby driving the two levers 330 of the two locking components 300 on both radial sides of the upper coil 100 to simultaneously push open the first locking member 310 and the second locking member 320, completing the synchronous unlocking function. If both operating parts 520 are pressed inward simultaneously, under the gear and rack drive, the two operating parts 520 will also move synchronously towards each other, thereby driving the two levers 330 of the two locking components 300 to simultaneously push open the first locking member 310 and the second locking member 320, completing the synchronous unlocking function.

[0091] In other words, regardless of which operating part 520 is pressed or both operating parts 520 are pressed simultaneously, the two operating parts 520 will eventually move synchronously in opposite directions. This causes the two toggle blocks 330 to move synchronously via the two traction ropes 610, which in turn causes the two first locking members 310 and the two second locking members 320 of the two locking components 300 to rotate synchronously, achieving the synchronous unlocking function. For the operator, regardless of whether they are standing on the left or right side of the magnetic resonance up and down coil (i.e., on both sides of the radial direction of the magnetic resonance up and down coil), and whether they are left-handed or right-handed, pressing the operating part 520 will achieve the same effect, avoiding the inability to effectively unlock due to standing position or left-handed usage habits that only allow force to be applied on one side.

[0092] More specifically, such as Figures 8 to 11 As shown, the length directions of the first rack 540 and the second rack 560 are parallel to the axial direction of the upper coil 100.

[0093] Specifically, such as Figures 8 to 11 As shown, in this embodiment, there are two sets of first rack 540, transmission gear 550 and second rack 560, and the two sets of first rack 540, transmission gear 550 and second rack 560 are arranged radially along the upper coil 100.

[0094] Furthermore, such as Figures 11 to 14 As shown, the magnetic resonance upper and lower opening and closing coils also include an ejection unit 700. The ejection unit 700 includes a guide post 240, a top release cap 720, a guide post elastic element 710, and an elastic sleeve 730. The guide post 240 is disposed on the lower coil 200, and the elastic sleeve 730 is disposed on the upper coil 100. The top release cap 720 extends into and is engaged with the elastic sleeve 730. The guide post elastic element 710 is disposed within the elastic sleeve 730 and is located between the elastic sleeve 730 and the top release cap 720. When in the locked position, the guide post 240 abuts against the top release cap 720, and the guide post elastic element 710 is in a compressed state. When in the unlocked position, the guide post elastic element 710 pushes the upper coil 100 and the lower coil 200 apart through its own elastic force.

[0095] By setting the ejection unit 700, a guide post 240 is set on the lower coil 200, and a top release cap 720, a guide post elastic element 710, and an elastic sleeve 730 are set on the upper coil 100. The guide post elastic element 710 is located between the top release cap 720 and the elastic sleeve 730. When the locking assembly 300 is in the locked position, the upper coil 100 and the lower coil 200 are locked together, and the guide post 240 abuts against the top release cap. At this time, the guide post elastic element 710 is in a compressed state. When it is in the unlocked position, the first locking element 310 exits the first mating groove 210, and the second locking element 320 exits the second mating groove 220. At this time, the guide post elastic element 710 resets, lifting part of the upper coil 100, thereby separating the upper coil 100 and the lower coil 200, which is convenient for operators to separate the upper coil 100 and the lower coil 200.

[0096] Specifically, such as Figures 11 to 14 As shown, the upper coil 100 is provided with a guide hole 120, and the guide post 240 can pass through the guide hole 120 and abut against the top cap 720.

[0097] More specifically, the ejector unit 700 is provided in multiple sets, and the multiple sets of ejector units 700 are arranged circumferentially around the coil 100. In this embodiment, there are four sets of ejector units 700. In other embodiments, the number of ejector units 700 is set according to the actual operation needs.

[0098] Further, please return to the reference. Figure 3 and Figure 4 The upper coil 100 and the lower coil 200 each have a connector male terminal 110 and a connector female terminal 230, respectively. The connector male terminal 110 can be plugged into the connector female terminal 230, thereby realizing the electrical connection between the upper coil 100 and the lower coil 200. In this embodiment, the connector male terminal 110 is provided on the upper coil 100, and the connector female terminal 230 is provided on the lower coil 200.

[0099] Example 2:

[0100] like Figure 15 and Figure 16 As shown, the locking component 300 and operating unit 500 in this embodiment have the same structure as the locking component 300 and operating unit 500 in the first embodiment. The difference is that the arrangement of the guide component 620 is different, so that the traction rope 610 is arranged in a d-shape.

[0101] It is understandable that different arrangements of the guide components 620 result in different arrangements of the traction rope 610. The specific arrangement can be adjusted according to the actual function, as long as the traction rope 610 can drive the lever 330 along the axial direction of the upper coil 100 towards the first locking member 310 (i.e., as shown in the image). Figure 15Simply move horizontally to the left.

[0102] Example 3:

[0103] like Figures 17 to 18 As shown, the first locking member 310 and the second locking member 320 are rotatably connected to the upper coil 100, and the abutment position of the first locking member 310 and the toggle block 330 is located on the side of the rotation center of the first locking member 310 away from the locking end of the first locking member 310, and the abutment position of the second locking member 320 and the toggle block 330 is located on the side of the rotation center of the second locking member 320 away from the locking end of the second locking member 320; the traction member is configured to move circumferentially along the upper coil 100 so that the locking end of the first locking member 310 and the locking end of the second locking member 320 are opposite to each other.

[0104] By abutting the first abutting portion 332 of the lever 330 against the side of the rotation center of the first locking member 310 away from the locking end of the first locking member 310, and abutting the second abutting portion 333 of the lever 330 against the side of the rotation center of the second locking member 320 away from the locking end of the second locking member 320, when the traction member drives the lever 330 to move circumferentially along the upper coil 100, the first abutting portion 332 can push the first locking member 310 to rotate, thereby causing the locking end of the first locking member 310 to exit the first mating groove 210, and the second abutting portion 333 can push the second locking member 320 to rotate, thereby causing the locking end of the second locking member 320 to exit the second mating groove 220, thus putting the first locking member 310 and the second locking member 320 in the unlocked position.

[0105] Specifically, such as Figures 17 to 18 As shown, in this embodiment, the first locking member 310 includes a first end and a second end. The first locking member 310 is connected to the upper coil 100 through a first rotation fulcrum 311, and the first rotation fulcrum 311 is located between the first end and the second end. The first end abuts against the first abutting part 332, and the second end is bent to form a locking end.

[0106] The second locking member 320 includes a third end and a fourth end. The second locking member 320 is connected to the upper coil 100 through a second rotation fulcrum 321, and the second rotation fulcrum 321 is located between the third end and the fourth end. The third end abuts against the second abutment portion 333, and the fourth end is bent to form a locking end.

[0107] The traction member drives the lever 330 to move circumferentially, thereby pushing the first end of the first locking member 310 and the third end of the second locking member 320 to move towards each other, and the second and fourth ends to move towards each other. For example, in Figure 17 In the middle, the traction component drives the paddle block 330 to move upward in the circumferential direction, thereby pushing the first end and the third end closer to each other, and the second end and the fourth end further apart.

[0108] Specifically, such as Figures 17 to 18 As shown, the traction component includes a guide belt 630, one end of which is connected to the operating unit 500, and the other end is connected to a corresponding lever 330. The guide belt 630 is slidably engaged with the upper coil 100, and the sliding direction of the guide belt 630 is circumferential to that of the upper coil 100. By setting the guide belt 630 to slide with the upper coil 100, it is convenient to drive the lever 330 to move circumferentially through the guide belt 630.

[0109] More specifically, such as Figures 17 to 18 As shown, the guide belt 630 and the upper coil 100 are equipped with a slider and a slide rail, respectively. The slide rail extends circumferentially along the upper coil 100, and the slide rail and the slider slide together, thereby limiting the sliding direction of the guide belt 630.

[0110] This application also provides a magnetic resonance imaging device; please refer back to the references. Figure 2 The magnetic resonance imaging device includes:

[0111] Magnetic resonance scanner, with a scanning cavity;

[0112] The scanning bed, coupled to the magnetic resonance scanner, can be moved into the scanning cavity;

[0113] Upper coil 100,

[0114] The lower coil 200 is detachably mounted on the scanning bed. The upper coil 100 and the lower coil 200 are connected separately from each other, and when the upper coil 100 is supported on the lower coil 200, the two together form a receiving cavity.

[0115] Locking components 300 are provided on both sides of the upper coil 100, and mating structures for locking with the locking components 300 are provided on both sides of the lower coil 200.

[0116] Two traction components are connected one-to-one with the locking assembly 300;

[0117] The operating unit 500 is connected to two traction components. Pressing the operating unit 500 left or right or pressing it down can simultaneously unlock the locking components 300 on both sides of the upper coil 100 and the cooperating structures on both sides of the lower coil 200.

[0118] The aforementioned magnetic resonance imaging (MRI) device mounts the lower coil 200 on the scanning bed. The upper coil 100 and the lower coil 200 are detachably connected so that when connected, they form a receiving cavity capable of accommodating at least one organ from the abdomen, chest, shoulder, or limbs of the subject. When the subject needs examination, it is first placed on the scanning bed, with the area to be examined located within the receiving cavity. Then, the scanning bed moves the subject into the scanning cavity of the MRI scanner for scanning. Two locking components 300 are provided on both radially sides of the upper coil 100. Each locking component 300 is equipped with a mating structure and a traction member. The operator operates the operating unit 500, causing the two traction members to move synchronously, which in turn moves the two locking components 300 synchronously to the unlocked position. This means that unlocking both locking components 300 in one operation completely separates the upper coil 100 and the lower coil 200, preventing a situation where one side is unlocked while the other remains locked.

[0119] In one embodiment of this application, the receiving cavity formed by the upper coil 100 and the lower coil 200 can accommodate at least one organ of the abdomen, chest, shoulder, or limbs of the object to be tested. The part of the object to be tested is placed within the receiving cavity according to actual testing needs. For example, when the part to be tested is the chest, the object is placed on a scanning bed, and the upper coil 100 and the lower coil 200 are arranged around the chest of the object to be tested.

[0120] In one embodiment of this application, the upper coil 100 and the lower coil 200 can form a transmitting coil, that is, the upper coil 100 and the lower coil 200 work together, and the transmitting coil formed by the upper coil 100 and the lower coil 200, as a whole, can convert electrical energy into magnetic field energy or electromagnetic waves for transmission.

[0121] In one embodiment of this application, the upper coil 100 and the lower coil 200 are a transceiver integrated coil, that is, the upper coil 100 and the lower coil 200 are combined together, which can both transmit signals or energy and receive signals or energy.

[0122] 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.

[0123] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A magnetic resonance switching coil, characterized in that, The magnetic resonance switching coil includes: Upper coil (100); Two locking components (300) are respectively disposed on both sides of the upper coil (100) in the radial direction, and the locking components (300) have a locked position and an unlocked position; The lower coil (200) has a locking structure on both sides along the radial direction for locking with the locking assembly (300); An elastic component is provided corresponding to the locking component (300), the elastic component is provided on the upper coil (100), and the locking component (300) is connected to the upper coil (100) through the corresponding elastic component. The elastic component is used to drive the corresponding locking component (300) to be in the locked position. An operating unit (500) and a traction member corresponding to the locking component (300) are provided. The operating unit (500) is located on the upper coil (100). There are multiple traction members, one end of each traction member is connected to the operating unit (500), and the other end of each traction member is connected to the corresponding locking component (300). The operating unit (500) can operably drive the multiple traction members to move, so that the traction members can drive the corresponding locking component (300) to move to the unlock position.

2. The magnetic resonance switching coil according to claim 1, characterized in that, The locking component (300) includes: A first locking member (310) and a second locking member (320) arranged axially spaced along the upper coil (100); and A lever (330) is connected to one end of the traction member, and the two ends of the lever (330) abut against the first locking member (310) and the second locking member (320) respectively; The elastic component includes a first elastic element and a second elastic element (400), and the mating structure includes a first mating groove (210) that engages with the first locking element (310) and a second mating groove (220) that engages with the second locking element (320).

3. The magnetic resonance switching coil according to claim 2, characterized in that, The first locking member (310) and the second locking member (320) are rotatably connected to the upper coil (100), and the contact position between the first locking member (310) and the toggle block (330) is located between the rotation center of the first locking member (310) and the locking end of the first locking member (310), and the contact position between the second locking member (320) and the toggle block (330) is located on the side of the rotation center of the second locking member (320) away from the locking end of the second locking member (320); The traction member is configured to move along the axial direction toward the first locking member (310) so that the locking end of the first locking member (310) and the locking end of the second locking member (320) are opposite to each other.

4. The magnetic resonance switching coil according to claim 3, characterized in that, The traction component includes a traction rope (610) and a guide assembly (620). One end of the traction rope (610) is connected to the operating unit (500), and the other end is connected to the lever (330). The guide assembly (620) is disposed on the upper coil (100), and the guide assembly (620) is provided with a limiting part for the traction rope (610) to pass through.

5. The magnetic resonance upper and lower opening and closing coil according to claim 2, characterized in that, The first locking member (310) and the second locking member (320) are rotatably connected to the upper coil (100), and the abutment position of the first locking member (310) and the toggle block (330) is located on the side of the rotation center of the first locking member (310) away from the locking end of the first locking member (310), and the abutment position of the second locking member (320) and the toggle block (330) is located on the side of the rotation center of the second locking member (320) away from the locking end of the second locking member (320); The traction member is configured to move circumferentially along the upper coil (100) so that the locking end of the first locking member (310) and the locking end of the second locking member (320) are opposite to each other.

6. The magnetic resonance switching coil according to claim 5, characterized in that, The traction component includes a guide belt (630), one end of which is connected to the operating unit (500) and the other end is connected to the corresponding paddle block (330). The guide belt (630) is slidably engaged with the upper coil (100), and the sliding direction of the guide belt (630) is the circumferential direction of the upper coil (100).

7. The magnetic resonance switching coil according to claim 1, characterized in that, The operating unit (500) includes a base (510), an operating part (520), and a reset part (530). The base (510) and the operating part (520) are both disposed on the upper coil (100), and the operating part (520) is slidably engaged with the upper coil (100). One end of the reset part (530) is connected to the operating part (520), and the other end abuts against the base (510). The operating part (520) is connected to the traction member, and the reset part (530) is used to drive the operating part (520) to reset by its own elastic force.

8. The magnetic resonance switching coil according to claim 7, characterized in that, There are two operation parts (520) and two reset parts (530), and the two operation parts (520) and the two reset parts (530) are connected in a one-to-one correspondence. The two operation parts (520) are arranged at intervals along the axial direction of the upper coil (100), and the two traction members are connected to the same operation part (520). The operating unit (500) further includes a first rack (540), a transmission gear (550), and a second rack (560). The first rack (540) is connected to one of the operating parts (520), and the second rack (560) is connected to the other operating part (520). The first rack (540) and the second rack (560) are respectively disposed on both sides of the transmission gear (550) and are both connected to the transmission gear (550).

9. The magnetic resonance switching coil according to claim 1, characterized in that, It also includes an ejection unit (700), which includes a guide post (240), a top release cap (720), a guide post elastic element (710), and an elastic sleeve (730). The guide post (240) is disposed on the lower coil (200), and the elastic sleeve (730) is disposed on the upper coil (100). The top release cap (720) extends into the elastic sleeve (730) and is engaged with the elastic sleeve (730). The guide post elastic element (710) is disposed in the elastic sleeve (730) and located between the elastic sleeve (730) and the top release cap (720). When in the locked position, the guide post (240) abuts against the top cap (720), and the guide post elastic element (710) is in a compressed state. When in the unlocked position, the guide post elastic element (710) pushes the upper coil (100) and the lower coil (200) apart by its own elastic force.

10. A magnetic resonance imaging device, characterized in that, include: Magnetic resonance scanner, with a scanning cavity; A scanning bed, coupled to the magnetic resonance scanner, is movable into the scanning cavity; Upper coil (100), The lower coil (200) is detachably mounted on the scanning bed. The upper coil (100) and the lower coil (200) are connected separately from each other, and when the upper coil (100) is supported on the lower coil (200), the two together form a receiving cavity. Locking components (300) are provided on both sides of the upper coil (100), and a locking structure for locking with the locking components (300) is provided on both sides of the lower coil (200). Two traction components are connected one-to-one with the locking assembly (300); The operating unit (500) is connected to both of the traction components. Pressing the operating unit (500) left or right or pressing the operating unit (500) downward can simultaneously unlock the locking components (300) on both sides of the upper coil (100) and the mating structures on both sides of the lower coil (200).

11. The magnetic resonance imaging apparatus according to claim 10, characterized in that, The upper coil (100) and the lower coil (200) can form a transmitting coil or a transceiver coil; The cavity formed by the upper coil (100) and the lower coil (200) together can accommodate at least one organ of the subject's abdomen, chest, shoulder, or limbs.

Images