Flexible magnetic resonance coil assembly

Abstract

The utility model relates to the technical field of magnetic resonance, in particular to a flexible magnetic resonance coil assembly. The magnetic resonance coil assembly comprises a deformable flexible support body; a coil ring supported by the flexible support body and configured to deform along with the deformation of the flexible support body; the electronic component is electrically connected with the coil ring and is provided with a threading hole; and the sewing thread is used for fixedly sewing the electronic component to the flexible support body by penetrating through the threading hole.

Description

Technical Field

[0001] This application relates to the field of magnetic resonance technology, and more particularly to a flexible magnetic resonance coil assembly. Background Technology

[0002] Flexible magnetic resonance (MRI) coil assemblies can be force-applied to adaptively deform according to the shape of the examined area (e.g., the human head), thereby bringing the internal radio frequency coil as close as possible to the surface of the examined area to obtain high-quality MRI images. However, not all parts of a flexible MRI coil assembly can deform freely because MRI coil assemblies typically contain electronic components with rigid parts such as printed circuit boards, which themselves cannot deform. How to securely bond the rigid electronic components to the flexible support of the coil assembly, preventing positional shift of the electronic components relative to the flexible carrier when the coil assembly deforms, and thus affecting the electrical function of the electronic components, is a problem that technicians need to address. Summary of the Invention

[0003] In view of this, this application provides a flexible magnetic resonance coil assembly.

[0004] In the first aspect, a flexible magnetic resonance coil assembly is proposed, comprising:

[0005] Deformable flexible support;

[0006] The coil loop is supported by the flexible support and is configured to deform in accordance with the deformation of the flexible support;

[0007] An electronic component, electrically connected to the coil ring, and having a through-hole;

[0008] The electronic components are sewn and secured to the flexible support body through the thread holes.

[0009] In some possible implementations, the electronic component includes a first circuit board and a first electronic device disposed on the first circuit board, the first circuit board having the through hole.

[0010] In some possible implementations, the flexible support includes:

[0011] First flexible material layer;

[0012] The second flexible material layer is stacked with the first flexible material layer.

[0013] The first circuit board and the coil ring are both stacked and fixed to the first flexible material layer, and are located between the first flexible material layer and the second flexible material layer.

[0014] In some possible implementations, the first circuit board has a first side abutting the first flexible material layer and a second side opposite to the first side, with the first electronic device disposed on the second side;

[0015] The electronic component also includes a support structure that supports the second flexible material layer to separate the first electronic device from the second flexible material layer.

[0016] In some possible implementations, the support structure includes:

[0017] The second circuit board has a third side that is attached to the second flexible material layer and a fourth side that is opposite to the third side and opposite to the second side, wherein the fourth side is provided with a second electronic device;

[0018] A connecting post is provided, one end of which is welded and fixed to the first circuit board, and the other end of which is welded and fixed to the second circuit board. The connecting post electrically connects the first electronic device to the second electronic device.

[0019] In some possible implementations, neither the first nor the fourth surface is provided with any electronic devices.

[0020] In some possible implementations, the support structure includes:

[0021] A housing, disposed between the first flexible material layer and the second flexible material layer, and accommodating the first circuit board, the housing having a bayonet;

[0022] A housing is disposed on the side of the first flexible material layer opposite to the second flexible material layer;

[0023] The latch extends integrally from the housing and penetrates the first flexible material;

[0024] The latch engages with the bayonet and applies a tension force to the housing and the housing to bring them closer together and clamp the first flexible material layer.

[0025] In some possible implementations, the first circuit board is formed as a generally square shape, with the four corners of the square being formed as outwardly protruding arcs.

[0026] In some possible implementations, the first circuit board has a plurality of said through holes, which are arranged spaced apart from each other on the edge of the first circuit board.

[0027] In some possible implementations, the electronic component includes a support frame and a third circuit board mounted to the support frame, the support frame having the through-hole.

[0028] According to the flexible magnetic resonance coil assembly provided in this application, a thread hole is provided on the electronic component, and the suture passes through the thread hole to sew and fix the electronic component to the flexible support, so that the electronic component has a stable relative position on the flexible support and is not easy to move on the flexible support, thereby ensuring the stability of the electrical connection between the electronic component and related components. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application, and are not intended to limit this application.

[0030] Figure 1 This is an exploded view of a magnetic resonance coil assembly provided in one embodiment of this application.

[0031] Figure 2 yes Figure 1 A schematic diagram of the planar structure of the magnetic resonance coil assembly, in which components such as the radio frequency coil are shown in perspective.

[0032] Figure 3 yes Figure 1 A schematic diagram of the structure of the radio frequency coil, which corresponds to the view from the first flexible material layer to the second flexible material layer.

[0033] Figure 4 Shown in the form of a plan Figure 2 The diagram shows the relationship between the radio frequency coil and the flexible support, corresponding to the viewpoint from the second flexible material layer to the first flexible material layer.

[0034] Figure 5 Shown in 3D form Figure 2 The relationship between the intermediate radio frequency coil and the first flexible material layer.

[0035] Figure 6 It shows Figure 2 The relationship between the radio frequency coil and the first and second flexible material layers.

[0036] Figure 7 This is a schematic diagram of the engagement of a portion of a radio frequency coil with a first flexible material layer, provided in another embodiment.

[0037] Figure 8 yes Figure 2 A schematic diagram of the structure of the second electronic component in the first configuration.

[0038] Figure 9 yes Figure 2 A schematic diagram of the interaction between the second electronic component and the first flexible material layer in the second configuration.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1- Flexible support structure;

[0041] 2-First flexible material layer;

[0042] 3-Second flexible material layer;

[0043] 4-RF coil;

[0044] 5-Coil loop;

[0045] 6-First electronic component;

[0046] 7-First circuit board, 7a-First side, 7b-Second side, 7c-First wire hole;

[0047] 8-First electronic device;

[0048] 9-Second circuit board, 9a-Third side, 9b-Fourth side;

[0049] 10-Second electronic device;

[0050] 11-Connecting post;

[0051] 12-Shell, 12a-Bayonet;

[0052] 13-Shell base, 13a-Clasp;

[0053] 14-Second electronic component;

[0054] 15-Support frame, 15a-Second threading hole;

[0055] 16 - Third circuit board;

[0056] 17 - First suture;

[0057] 18 - Second suture;

[0058] 19 - Third suture;

[0059] 20-Cable. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0061] In the description of this application and the claims, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates not less than two.

[0062] Figure 1 and Figure 2 A flexible magnetic resonance coil assembly according to an embodiment of this application is shown, and Figures 3 to 6 as well as Figures 8 to 9 Each of the following is a portion of the magnetic resonance coil assembly. The magnetic resonance coil assembly includes a deformable flexible support 1 and a plurality of radio frequency coils 4 supported by the flexible support 1.

[0063] The flexible support 1 includes a first flexible material layer 2 and a second flexible material layer 3 arranged in layers. The first flexible material layer 2 and the second flexible material layer 3 can be fixedly connected by seams (not shown in the figure). In some embodiments, the first flexible material layer 2 and the second flexible material layer 3 can be joined together at one side. For example, a large area of ​​flexible material layer can be folded around its middle to obtain the first flexible material layer 2 and the second flexible material layer 3. In addition, the first flexible material layer 2 and the second flexible material layer 3 can be a multi-layer structure or a single-layer structure. For example, the first flexible material layer 2 can include an outer fabric layer, an inner lining layer, and a flexible sponge layer sandwiched between the fabric layer and the lining layer.

[0064] When using the magnetic resonance coil assembly to perform a magnetic resonance examination on a subject, one of the first flexible material layer 2 and the second flexible material layer 3 is in contact with the subject's body, while the other is away from the subject's body. For example, the aforementioned one can be the first flexible material layer 2, and correspondingly, the other can be the second flexible material layer 3, or vice versa.

[0065] Multiple radio frequency coils 4 can form a coil array. These radio frequency coils 4 are arranged between the first flexible material layer 2 and the second flexible material layer 3 and are fixed by stitching, thereby maintaining a stable relative position between the first flexible material layer 2 and the second flexible material layer 3.

[0066] Combined Figures 3 to 5 In this embodiment, each radio frequency coil 4 includes a coil ring 5 and a first electronic component 6 electrically connected to the coil ring 5.

[0067] The coil loop 5 is stitched to the first flexible material layer 2 via a first seam 17 spanning the loop arm, and is configured to deform in response to the deformation of the flexible support 1, thus supporting the coil loop 5. In this embodiment, the coil loop 5 is primarily formed of flexible wire and extends over a range of approximately 340°. Furthermore, the coil loop 5 is electrically connected to a first electronic component 6, through which the magnetic resonance signal induced by the coil loop 5 is processed and transmitted outward. In other embodiments, the wire used to form the coil loop 5 is segmented at a position opposite to the first electronic component 6, and the segmented wires are connected via capacitors.

[0068] The first electronic component 6 has a first thread hole 7c, through which a second suture 18 is sewn and fixed to the first flexible material layer 2. In this way, the first electronic component 6 has a stable relative position on the flexible support 1 and is not easy to move between the first flexible material layer 2 and the second flexible material layer 3, thereby ensuring the stability of the electrical connection between the first electronic component 6 and the coil ring 5.

[0069] The first electronic assembly 6 includes a first circuit board 7 and a first electronic device 8 disposed on the first circuit board 7. The first circuit board 7 has the aforementioned first thread hole 7c. In this way, the second stitch 18 directly stitches and fixes the first circuit board 7 carrying the electronic device to the flexible support 1, which helps to reduce the composition and number of components of the first electronic assembly 6 and reduce the component cost of the magnetic resonance coil assembly.

[0070] Furthermore, the first circuit board 7 and the coil ring 5 are both stacked and fixed to the first flexible material layer 2, and are located between the first flexible material layer 2 and the second flexible material layer 3. In this way, the first flexible material layer 2 and the second flexible material layer 3 provide good protection for the first circuit board 7 and the coil ring 5.

[0071] More specifically, the first circuit board 7 has a first surface 7a that abuts against the first flexible material layer 2 and a second surface 7b opposite to the first surface 7a. The first electronic device 8 is disposed on the second surface 7b, and no electronic device is disposed on the first surface 7a. Furthermore, the first electronic component 6 also includes a support structure that supports the second flexible material layer 3 to separate the first electronic device 8 from the second flexible material layer 3. This design prevents the first flexible material layer 2 and the second flexible material layer 3 from contacting the first electronic device 8 on the second surface 7b, and effectively prevents damage to the first electronic component when the flexible support 1 is deformed under force.

[0072] Please see Figure 5 and Figure 6The aforementioned support structure includes a second circuit board 9 and a connecting post 11. The second circuit board 9 has a third surface 9a that abuts against the second flexible material layer 3 and a fourth surface 9b that is opposite to the third surface 9a and opposite to the second surface 7b. The third surface 9a is provided with a second electronic device 10, while the fourth surface 9b is not provided with any electronic device. One end of the connecting post 11 is welded to the first circuit board 7, and the other end is welded to the second circuit board 9. The connecting post 11 electrically connects the first electronic device 8 to the second electronic device 10. Thus, the first surface 7a of the first circuit board 7 and the third surface 9a of the second circuit board 9 respectively open the first flexible material layer 2 and the second flexible material layer 3 to both sides, so that the first electronic device 8 and the second electronic device 10 are kept separate from the first flexible material layer 2 and the second flexible material layer 3, preventing damage to the first electronic device 8 and the second electronic device 10.

[0073] In some embodiments, conductive holes electrically connected to the first electronic device 8 and the second electronic device 10 are formed on the first circuit board 7 and the second circuit board 9, respectively. The two ends of the connecting post 11 are inserted into the conductive holes of the first circuit board 7 and the second circuit board 9 and then soldered.

[0074] Furthermore, both the first circuit board 7 and the second circuit board 9 are formed into approximately square shapes, with the four corners of the square being formed into outwardly protruding arc shapes. In this way, the first circuit board 7 or the second circuit board 9 can be prevented from losing the flexible support 1.

[0075] In this embodiment, the first circuit board 7 has four first through holes 7c, which are spaced apart from each other on the edge of the first circuit board 7 and are located near the four rounded corners of the first circuit board 7. In this way, it helps to enhance the adhesion between the first circuit board 7 and the first flexible material layer 2 and suppresses scratches on the flexible support 1 by the edge of the first circuit board 7.

[0076] In other embodiments, such as Figure 7 As shown, the support structure includes a housing 12, a base 13, and a latch 13a. The housing 12 is disposed between the first flexible material layer 2 and the second flexible material layer, and accommodates the first circuit board 7. The housing 12 also has a latch 12a. The base 13 is disposed on the side of the first flexible material layer 2 facing away from the second flexible material layer 3. The latch 13a extends integrally from the base 13 and penetrates through the first flexible material. The latch 13a engages with the latch 12a, applying a tension force to the base 13 and the housing 12 to bring them closer together and clamp the first flexible material layer 2, thereby fixing the base 13 and the housing 12 to the first flexible material layer 2. In this type of embodiment, to avoid the rigid base 13 contacting the examinee and affecting the examinee's experience, the second flexible material layer 3 can be in contact with the examinee's body, while the first flexible material layer 2 and the base 13 are away from the examinee's body.

[0077] Furthermore, the magnetic resonance coil assembly also includes a plurality of second electronic components 14 connected via cables 20 to the first electronic component 6, more specifically to the second circuit board 9. Therefore, the second electronic components 14 are also electrically connected to the coil loop 5. Specifically, each second electronic component 14 is a trap, which includes a resonant circuit composed of capacitors and inductors, capable of suppressing common-mode signals and large currents. The second electronic components 14 are disposed between the first flexible material layer 2 and the second flexible material layer 3.

[0078] Please see also Figure 2 , 8 and Figure 9 The second electronic component 14 has two configurations ( Figure 2 The bottom left and bottom right are Figure 8 The configuration shown is one of the other three. Figure 9 (Another configuration is shown), but in each configuration, the second electronic component 14 includes a support frame 15 and a third circuit board 16 mounted to the support frame 15. The third circuit board 16 has electronic devices such as capacitors, and the support frame 15 has a second through hole 15a. A third stitch 19 passing through the second through hole 15a stitches and secures the second electronic component 14 to the first flexible material layer 2. In this way, the second electronic component 14 has a stable relative position on the flexible support 1 and is not easily moved between the first flexible material layer 2 and the second flexible material layer 3, thereby ensuring the stability of the electrical connection between the second electronic component 14 and the coil ring 5 and the first electronic component 6.

Claims

1. A flexible magnetic resonance coil assembly, characterized in that, include: Deformable flexible support; The coil loop is supported by the flexible support and is configured to deform in accordance with the deformation of the flexible support; An electronic component, electrically connected to the coil ring, and having a through-hole; The electronic components are sewn and secured to the flexible support body through the thread holes.

2. The magnetic resonance coil assembly according to claim 1, characterized in that, The electronic component includes a first circuit board and a first electronic device disposed on the first circuit board, wherein the first circuit board has the through hole.

3. The magnetic resonance coil assembly according to claim 2, characterized in that, The flexible support includes: First flexible material layer; The second flexible material layer is stacked with the first flexible material layer. The first circuit board and the coil ring are both stacked and fixed to the first flexible material layer, and are located between the first flexible material layer and the second flexible material layer.

4. The magnetic resonance coil assembly according to claim 3, characterized in that, The first circuit board has a first side that abuts against the first flexible material layer and a second side opposite to the first side, and the first electronic device is disposed on the second side; The electronic component also includes a support structure that supports the second flexible material layer to separate the first electronic device from the second flexible material layer.

5. The magnetic resonance coil assembly according to claim 4, characterized in that, The support structure includes: The second circuit board has a third side that is attached to the second flexible material layer and a fourth side that is opposite to the third side and opposite to the second side, wherein the fourth side is provided with a second electronic device; A connecting post is provided, one end of which is welded and fixed to the first circuit board, and the other end of which is welded and fixed to the second circuit board. The connecting post electrically connects the first electronic device to the second electronic device.

6. The magnetic resonance coil assembly according to claim 5, characterized in that, No electronic devices are installed on the first and fourth surfaces.

7. The magnetic resonance coil assembly according to claim 4, characterized in that, The support structure includes: A housing, disposed between the first flexible material layer and the second flexible material layer, and accommodating the first circuit board, the housing having a bayonet; A housing is disposed on the side of the first flexible material layer opposite to the second flexible material layer; The latch extends integrally from the housing and penetrates the first flexible material; The latch engages with the bayonet and applies a tension force to the housing and the housing to bring them closer together and clamp the first flexible material layer.

8. The magnetic resonance coil assembly according to claim 2, characterized in that, The first circuit board is formed into a roughly square shape, with the four corners of the square being formed into outwardly protruding arc shapes.

9. The magnetic resonance coil assembly according to any one of claims 2 to 8, characterized in that, The first circuit board has a plurality of wire holes, which are arranged at a distance from each other on the edge of the first circuit board.

10. The magnetic resonance coil assembly according to claim 1, characterized in that, The electronic component includes a support frame and a third circuit board mounted to the support frame, the support frame having the through hole.

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