Magnetic resonance device coil support suspension structure

Abstract

The utility model aims at providing a kind of magnetic resonance equipment coil support suspension structure, including support and at least two suspension components, each suspension component is spaced apart and set on support, suspension component includes plug post, sleeve seat, axle block, top seat and elastic piece, plug post is set on magnetic resonance equipment, plug post is provided with lug, sleeve seat is set on support, round groove is opened in sleeve seat, axle block is rotationally set in round groove, rotation groove is opened in the inside wall of axle block, rotation groove is spirally extended from one end to the other end along the circumferential direction of inside wall with constant angle, plug post drives lug and rotation groove to be inserted to make axle block rotate with the axis of round groove as center, top seat is coaxially arranged on sleeve seat, and one end of top seat extends into round groove, elastic piece is sleeved on top seat, and elastic piece is used to push top seat and axle block to be connected to lock axle block.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to a coil support suspension structure for a magnetic resonance imaging (MRI) device. Background Technology

[0002] In magnetic resonance imaging (MRI), image quality is closely related to the distance between the MRI coil and the examined area, especially in head imaging. The relative position and spacing stability between the coil and the head directly affect the signal-to-noise ratio and image clarity. However, there are significant differences in head size among individuals within the examined population. For example, adults and children differ considerably in cranial circumference, cranial width, and overall volume. Even within the same age group, individual differences in head size exist. This necessitates replacing the suspension brackets used to mount and fix the MRI coils according to different head sizes to ensure the optimal imaging distance between the coil and the head. However, current suspension brackets mostly use screws made of non-magnetic materials (such as titanium alloys and engineering plastics) for fixing.

[0003] However, existing magnetic resonance imaging (MRI) device suspension supports have the following shortcomings in practical use: the removal and installation of screws require specialized tools, the operation steps are cumbersome, and the support replacement process is time-consuming. In medical settings with high patient traffic, the time spent on support replacement will prolong patients' examination waiting time and reduce the utilization rate of the equipment per unit time. In view of this, the MRI device coil support suspension structure proposed in this application is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a magnetic resonance imaging (MRI) device coil support suspension structure that can be quickly installed and disassembled without the aid of tools, thereby reducing patient waiting time and improving the unit time utilization rate of the equipment.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A magnetic resonance imaging (MRI) device coil support suspension structure for mounting a coil support on an MRI device, comprising:

[0007] stents; and

[0008] At least two suspension assemblies are provided, each of which is spaced apart on the bracket. Each suspension assembly includes a post, a sleeve, a shaft block, a top seat, and an elastic element. The post is disposed on the magnetic resonance device and has a protrusion. The sleeve is disposed on the bracket and has a circular groove. The shaft block is rotatably disposed within the circular groove. A spiral groove is formed on the inner sidewall of the shaft block, which spirals from one end of the shaft block to the other end at a constant angle along the circumference of the inner sidewall. The post drives the protrusion to engage with the spiral groove so that the shaft block rotates around the axis of the circular groove. The top seat is coaxially inserted into the sleeve, and one end of the top seat extends into the circular groove. The elastic element is sleeved on the top seat and is used to push the top seat to engage with the shaft block to lock the shaft block.

[0009] Optionally, the shaft block has a groove, the diameter of which is adapted to the diameter of the insert post, and the spiral groove is formed on the inner wall of the groove.

[0010] Optionally, the shaft block is further provided with an annular groove, and an annular platform is provided on the inner side wall of the groove, the annular platform being engaged with the annular groove.

[0011] Optionally, the suspension assembly further includes a plurality of sliding balls, each of which is located in the annular groove and is continuously arranged along the circumference of the annular groove, with the two side walls of the annular platform abutting against each of the sliding balls.

[0012] Optionally, the shaft block is provided with a plurality of locking blocks, each of the locking blocks being located on the end of the shaft block near the bottom wall of the circular groove, and each of the locking blocks being continuously arranged along the circumference of the shaft block, and the top seat engaging with each of the locking blocks.

[0013] Optionally, there is a height difference between the two ends of the card block.

[0014] Optionally, the top seat has a plurality of slots, each of which is continuously arranged along the circumference of the top seat, and the slots engage with the card blocks.

[0015] Optionally, the top seat includes a top block, a sliding column, and a pull tab. The sliding column passes through the sleeve, and the pull tab and the top block are respectively disposed on both ends of the sliding column. Each of the slots is formed on the top block, and the elastic element is sleeved on the sliding column.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] This invention relates to a magnetic resonance imaging (MRI) device coil support suspension structure. It employs a design combining a plug and a spiral groove, along with a top-mounted locking mechanism driven by an elastic element. This allows for automatic locking during installation simply by aligning the sleeve with the plug, and easy disassembly by pulling a tab. The entire process is tool-free, significantly simplifying the operation. The unique spiral groove and protrusion combination automatically drives the shaft block to rotate upon plug insertion, while the top-mounted mechanism, pushed by the elastic element, achieves unidirectional self-locking through a stepped locking block and a beveled groove structure. This ensures stability after installation and facilitates quick unlocking. Furthermore, the optimized design of the sliding ball and the ring groove / ring platform effectively reduces rotational friction of the shaft block, making insertion and removal smoother. This increased speed of support installation and disassembly reduces patient waiting time and improves the utilization rate of the equipment per unit time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the magnetic resonance device coil support suspension structure according to one embodiment of the present invention;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0021] Figure 3 This is a partial structural cross-sectional schematic diagram of a suspension assembly according to one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the sleeve according to one embodiment of the present utility model;

[0023] Figure 5 This is a structural schematic diagram showing the position of the sliding ball in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the top seat according to one embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Magnetic resonance equipment coil support suspension structure; 10. Magnetic resonance equipment; 20. Support; 30. Insert column; 301. Protrusion; 31. Sleeve; 310. Circular groove; 311. Ring platform; 32. Shaft block; 320. Column groove; 321. Ring groove; 322. Locking block; 323. Rotary groove; 33. Top seat; 330. Top block; 3301. Locking groove; 331. Sliding column; 332. Pull plate; 34. Elastic element; 35. Sliding ball. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] 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 one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] like Figures 1 to 6As shown, in one embodiment, a magnetic resonance imaging (MRI) device coil support suspension structure 1 is used to mount a coil support 20 onto an MRI device 10. The structure includes a support 20 and at least two suspension assemblies, which are spaced apart on the support 20. Each suspension assembly includes a pin 30, a sleeve 31, a shaft block 32, a top seat 33, and an elastic element 34. The pin 30 is mounted on the MRI device 10 and has a protrusion 301. The sleeve 31 is mounted on the support 20 and has a circular groove 310. The shaft block 32 is adapted to rotate. The shaft block 32 is movably disposed in the circular groove 310. A spiral groove 323 is provided on the inner side wall of the shaft block 32. The spiral groove 323 extends spirally from one end of the shaft block 32 to the other end at a constant angle along the circumference of the inner side wall. The insert post 30 drives the protrusion 301 to engage with the spiral groove 323 so that the shaft block 32 rotates around the axis of the circular groove 310. The top seat 33 is coaxially disposed on the sleeve 31, and one end of the top seat 33 extends into the circular groove 310. The elastic element 34 is sleeved on the top seat 33. The elastic element 34 is used to push the top seat 33 and engage with the shaft block 32 to lock the shaft block 32.

[0032] It should be noted that the insertion post 30 has a cylindrical structure, with one end of the insertion post 30 mounted on the magnetic resonance imaging (MRI) device 10, and the other end extending outward relative to the MRI device 10. Multiple protrusions 301 are provided, each protruding along the circumference of the insertion post 30 on the outer wall, and all protrusions 301 are equidistantly distributed. The protrusions 301 are also cylindrical, and the end face of the protrusion 301 away from the insertion post 30 is an arc-shaped structure. Furthermore, the sleeve 31 is mounted on the support 20; for example, the sleeve 31 and the support 20 are integrally formed. A circular groove 310 is formed on the sleeve 31, extending inward from the end face of the sleeve 31 away from the support 20. Furthermore, the shaft block 32 is rotatably disposed within the circular groove 310. Several spiral grooves 323 are formed on the inner wall of the shaft block 32. Each spiral groove 323 extends spirally from one end of the shaft block 32 to the other end at a constant angle along the inner wall of the shaft block 32. One end of each spiral groove 323 communicates with the end face of the shaft block 32, and there is a gap between each spiral groove 323. Furthermore, the insertion post 30 is fixedly installed on the magnetic resonance device 10. This means that when the insertion post 30 drives each protrusion 301 to engage with each spiral groove 323 in a corresponding manner, each protrusion 301 cannot rotate relative to the insertion post 30. Since the shaft block 32 is rotatably disposed within the circular groove 310, and each spiral groove 323 is a spiral structure, when the protrusion 301 slides along the opening direction of the spiral groove 323, it can drive the shaft block 32 to rotate around the axis of the circular groove 310. Furthermore, the top seat 33 is coaxially mounted on the sleeve 31, with one end of the top seat 33 located within the circular groove 310 and the other end extending relative to the outer wall of the sleeve 31. Thus, the shaft block 32 is located at the opening end of the circular groove 310, and one end of the top seat 33 extends from the inner bottom wall of the circular groove 310 towards the end of the shaft block 32 furthest from the opening. Furthermore, the elastic element 34 is a spring structure, sleeved on the top seat 33, with both ends of the elastic element 34 abutting against the top seat 33 and the inner bottom wall of the circular groove 310, respectively, so that the elastic element 34 pushes the top seat 33 into engagement with the shaft block 32, thereby preventing the shaft block 32 from rotating relative to the circular groove 310. Furthermore, at least two suspension components are provided: two insertion posts 30 are respectively and spaced apart on the magnetic resonance device 10, and two sleeves 31 are respectively and spaced apart on the bracket 20. Thus, when the two insertion posts 30 are respectively inserted into the two sleeves 31, the bracket 20 cannot rotate relative to the magnetic resonance device 10. That is to say, among the insertion posts 30, shaft blocks 32, and sleeves 31, only the shaft block 32 can rotate. When the insertion post 30 drives the protrusion 301 to insert into the shaft block 32, and the top seat 33 is engaged with the shaft block 32 to prevent the shaft block 32 from rotating relative to the circular groove 310, the insertion post 30, shaft block 32, and sleeves 31 are all in a non-rotating state. The spiral groove 323 has a spiral structure, which prevents the protrusion 301 from driving the shaft block 32 to rotate relative to the circular groove 310, so that the insertion post 30 cannot detach from the sleeve 31.When the top seat 33 disengages from the shaft block 32, the protrusion 301 slides along the opening direction of the rotary groove 323, causing the shaft block 32 to slide relative to the circular groove 310, thereby allowing the protrusion 301 to slide out of the rotary groove 323. This allows operators to quickly install and remove the bracket 20 without the need for tools, directly inserting or disengaging the sleeve 31 and the insertion post 30 on the bracket 20. At the same time, the elastic element 34 pushes the top seat 33 to engage with the shaft block 32 to lock the shaft block 32, thus reducing patient waiting time and improving the unit time utilization rate of the equipment.

[0033] like Figures 1 to 3 , Figure 5 As shown, in one embodiment, the shaft block 32 has a column groove 320, the diameter of which is adapted to the diameter of the insert post 30, and a spiral groove 323 is formed on the inner side wall of the column groove 320.

[0034] It should be noted that the shaft block 32 has a column groove 320, and the groove opening direction of the column groove 320 is close to the groove opening direction of the circular groove 310. Furthermore, a spiral groove 323 extends spirally from one end of the column groove 320 to the inner bottom wall of the column groove 320 at a constant angle, and the width of the spiral groove 323 matches the diameter of the protrusion 301. Furthermore, the diameter of the column groove 320 matches the diameter of the insert post 30, so that each protrusion 301 provided on the insert post 30 can fit into the spiral groove 323 and slide within it.

[0035] like Figures 3 to 5 As shown, in one embodiment, the shaft block 32 is also provided with an annular groove 321, and an annular platform 311 is provided on the inner side wall of the circular groove 310, and the annular platform 311 is engaged with the annular groove 321.

[0036] It should be noted that the outer sidewall of the shaft block 32 is provided with an annular groove 321 along the circumference, and the inner sidewall of the circular groove 310 is provided with an annular platform 311 along the circumference. In this way, when the shaft block 32 is rotatably disposed in the circular groove 310, the shaft block 32 cannot slide in the circular groove 310, and can only rotate around the axis of the circular groove 310.

[0037] like Figure 3 , Figure 5 As shown, in one embodiment, the suspension assembly further includes a plurality of sliding balls 35, each of which is located in the annular groove 321 and is continuously arranged along the circumference of the annular groove 321. The two side walls of the annular platform 311 abut against each of the sliding balls 35.

[0038] It should be noted that the width of the annular platform 311 is smaller than the width of the annular groove 321, resulting in a gap between the two sides of the annular platform 311 and the two sides of the annular groove 321. Furthermore, each sliding ball 35 is continuously arranged along the circumference of the annular groove 321, and each sliding ball 35 is located at the gap between the annular platform 311 and the annular groove 321, resulting in multiple continuously arranged sliding balls 35 between the two sides of the annular platform 311 and the two sides of the annular groove 321. This reduces the frictional force between the shaft block 32 and the axis of the sleeve 31. Specifically, since each groove 323 is a spiral structure and there is an angle between the groove 323 and the end face of the shaft block 32, when the insert post 30 drives each protrusion 301 to slide along the opening direction of each groove 323 along the axis of the sleeve 31, the shaft block 32 will first be subjected to axial thrust. Since the ring platform 311 is engaged with the ring groove 321, the side of the ring groove 321 near the insert post 30 pushes each sliding ball 35 close to the ring platform 311, thus preventing the shaft block 32 from sliding along the axial direction. Since there is an angle between the groove 323 and the end face of the shaft block 32, when the protrusion 301 slides along the opening direction of the groove 323, the shaft block 32 rotates around the axis of the circular groove 310. Several sliding balls 35 are provided between the ring groove 321 and the ring platform 311, so that the shaft block 32 can rotate smoothly when subjected to axial thrust, thereby improving the installation and disassembly speed of the bracket 20.

[0039] like Figure 3 , Figures 5 to 6 As shown, in one embodiment, the shaft block 32 is provided with a plurality of locking blocks 322, each locking block 322 is located on the end of the shaft block 32 near the bottom wall of the circular groove 310, and each locking block 322 is continuously arranged along the circumference of the shaft block 32, and the top seat 33 is engaged with each locking block 322.

[0040] It should be noted that each locking block 322 is located on the end face of the shaft block 32 near the bottom wall of the circular groove 310. Each locking block 322 has an arc-shaped structure and is continuously arranged along the circumference of the end face of the shaft block 32 to form a ring structure that protrudes relative to the end face of the shaft block 32.

[0041] like Figure 3 , Figure 5 As shown, in one embodiment, there is a height difference between the two ends of the card block 322.

[0042] It should be noted that the locking block 322 has an arc-shaped structure with a height difference between its two ends. The height of the locking block 322 gradually increases from one end to the other. When the locking blocks 322 are continuously arranged along the circumference of the end face of the shaft block 32, they together form a ring-shaped, stepped structure. When the shaft block 32 rotates relative to the circular groove 310, it can drive the locking blocks 322 to rotate around the axis of the circular groove 310.

[0043] As shown in the figure, in one embodiment, the top seat 33 is provided with a plurality of slots 3301, and each slot 3301 is continuously arranged along the circumference of the top seat 33. The slots 3301 are slidably engaged with the locking block 322.

[0044] It should be noted that the elastic element 34 is sleeved on the top seat 33, and the two ends of the elastic element 34 push against the inner bottom wall of the top seat 33 and the circular groove 310, respectively. Furthermore, each slot 3301 is circumferentially formed on the outer wall of the top seat 33 and located on the end of the top seat 33 away from the elastic element 34. Under the elastic force of the elastic element 34, each slot 3301 continuously maintains a one-to-one correspondence with each slot 322. Furthermore, the shape of the slot 3301 matches the shape of the slot 322, so that the slot 3301 also forms the same inclined surface as the slot 322. Thus, when the shaft block 32 drives each slot 322 to rotate clockwise relative to the circular groove 310, each slot 322 pushes the top seat 33 away from the shaft block 32 along the inclined surface, preventing the top seat 33 from engaging with the shaft block 32. When the shaft block 32 drives each locking block 322 to rotate counterclockwise relative to the circular groove 310, the elastic element 34 pushes the top seat 33 so that each locking groove 3301 engages with each locking block 322 along the inclined surface, thereby preventing the shaft block 32 from rotating.

[0045] like Figure 3 , Figure 6 As shown, in one embodiment, the top seat 33 includes a top block 330, a sliding column 331 and a pull tab 332. The sliding column 331 is inserted into the sleeve 31. The pull tab 332 and the top block 330 are respectively disposed on both ends of the sliding column 331. Each slot 3301 is opened on the top block 330. The elastic member 34 is sleeved on the sliding column 331.

[0046] It should be noted that the sleeve 31 has a square hole coaxially formed, and the two ends of the square hole are connected to the inner bottom wall of the circular groove 310 and the outer wall of the sleeve 31, respectively. The sliding column 331 has a square structure and slides adaptably in the square hole, so that one end of the sliding column 331 can extend into the circular groove 310. Further, the top block 330 is coaxially disposed on the end face of the sliding column 331 located in the circular groove 310, and the pull tab 332 is disposed on the end of the sliding column 331 away from the top block 330. The elastic element 34 is sleeved on the sliding column 331. The top block 330 has a circular structure, and the diameter of the top block 330 is the same as the outer diameter of the shaft block 32. Each slot 3301 is continuously arranged along the circumference of the top block 330 on the outer wall, and each slot 3301 is located on the end of the top block 330 closer to the shaft block 32. In this way, the elastic element 34 can push the top block 330 to drive each slot 3301 to engage with each block 322 on the shaft block 32.

[0047] It should be noted that one end of the sliding column 331 is located within the circular groove 310, while the other end of the sliding column 331 extends out to the external environment relative to the sleeve 31. A pull tab 332 is positioned on the end of the sliding column 331 furthest from the top block 330, allowing the operator to use the pull tab 332 to push the top block 330 against the elastic element 34, simultaneously disengaging the slots 3301 from the locking blocks 322. Thus, when the operator needs to install the bracket 20, they can quickly complete the installation by inserting the two sleeves 31 on the bracket 20 into the two insertion posts 30 on the magnetic resonance device 10. During disassembly, the two pull tabs 332 disengage the slots 3301 and locking blocks 322 on the two top blocks 330, allowing the two sleeves 31 to be quickly pulled out from the two insertion posts 30. This allows the magnetic resonance imaging (MRI) device coil support suspension structure 1 of this application to be quickly installed and disassembled without the aid of tools, thereby reducing patient waiting time and improving the unit time utilization rate of the equipment.

[0048] 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 coil support suspension structure for a magnetic resonance imaging (MRI) device, used to mount a coil support onto a magnetic resonance imaging (MRI) device, characterized in that, include: support; and At least two suspension assemblies are provided, each of which is spaced apart on the bracket. Each suspension assembly includes a post, a sleeve, a shaft block, a top seat, and an elastic element. The post is disposed on the magnetic resonance device and has a protrusion. The sleeve is disposed on the bracket and has a circular groove. The shaft block is rotatably disposed within the circular groove. A spiral groove is formed on the inner sidewall of the shaft block, which spirals from one end of the shaft block to the other end at a constant angle along the circumference of the inner sidewall. The post drives the protrusion to engage with the spiral groove so that the shaft block rotates around the axis of the circular groove. The top seat is coaxially inserted into the sleeve, and one end of the top seat extends into the circular groove. The elastic element is sleeved on the top seat and is used to push the top seat to engage with the shaft block to lock the shaft block.

2. The magnetic resonance imaging (MRI) device coil support suspension structure according to claim 1, characterized in that, The shaft block has a groove, the diameter of which is adapted to the diameter of the insert post, and the spiral groove is formed on the inner wall of the groove.

3. The magnetic resonance device coil support suspension structure according to claim 2, characterized in that, The shaft block is also provided with an annular groove, and an annular platform is provided on the inner side wall of the annular groove, which is engaged with the annular groove.

4. The magnetic resonance device coil support suspension structure according to claim 3, characterized in that, The suspension assembly also includes a plurality of ball bearings, each ball bearing being located within the annular groove and arranged continuously along the circumference of the annular groove. The two side walls of the annular platform abut against each ball bearing.

5. The magnetic resonance equipment coil support suspension structure according to claim 4, characterized in that, The shaft block is provided with a number of locking blocks, each of which is located on the end of the shaft block near the bottom wall of the circular groove, and each of the locking blocks is continuously arranged along the circumference of the shaft block, and the top seat engages with each of the locking blocks.

6. The magnetic resonance device coil support suspension structure according to claim 5, characterized in that, There is a height difference between the two ends of the card block.

7. The magnetic resonance device coil support suspension structure according to claim 6, characterized in that, The top seat has several slots, and each slot is arranged continuously along the circumference of the top seat. The slots engage with the card blocks.

8. The magnetic resonance device coil support suspension structure according to claim 7, characterized in that, The top seat includes a top block, a sliding column, and a pull tab. The sliding column passes through the sleeve, and the pull tab and the top block are respectively disposed on both ends of the sliding column. Each of the slots is formed on the top block, and the elastic element is sleeved on the sliding column.

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