Locking structure and magnetic resonance coil device

Abstract

The present invention relates to a locking structure and a magnetic resonance coil device. The locking structure comprises: a locking component, which can be set on a first coil structure of a magnetic resonance coil device; and an adjusting component, which can be set on a second coil structure of the magnetic resonance coil device, wherein the adjusting component has a locking position and an unlocking position; when the adjusting component is in the locking position, the adjusting component abuts against the locking component and is locked by the locking component; when the adjusting component is in the unlocking position, the adjusting component is disengaged from the locking component, so that the second coil structure and the first coil structure can move relative to each other. By locking and unlocking the adjusting component by the locking component, the second coil structure can be reliably locked to the first coil structure during imaging, thereby avoiding the position of the second coil structure from moving and ensuring the accuracy of the imaging result.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a locking structure and a magnetic resonance coil device. Background Art

[0002] The magnetic resonance system (also called MR or MRT) in the prior art generally includes a plurality of different antennas (also called coils) for transmitting radio frequency pulses of magnetic resonance and / or acquiring induced magnetic resonance signals. When performing imaging scanning, the magnetic resonance system needs to be fixed in position to ensure the accuracy of the imaging results.

[0003] In particular, the magnetic resonance system of the head usually has two parts, the upper and lower parts, which can move relative to each other to realize the operation of the magnetic resonance system. However, in actual use, the position between the upper and lower parts cannot be fixed, and the presence of vibration will cause the upper and lower parts to be misaligned, affecting the accuracy of the imaging results. Moreover, if the fixing method such as buckles and bolts is used, the operation is more complicated, affecting the efficiency of the operation and inconvenient for medical staff to use. Summary of the invention

[0004] Based on this, it is necessary to provide a locking structure and a magnetic resonance coil device that can lock and unlock the first coil structure and the second coil structure to address the problem of relative movement between the upper and lower parts of the current magnetic resonance system during imaging.

[0005] A locking structure, comprising:

[0006] A locking assembly may be disposed on the first coil structure of the magnetic resonance coil device; and

[0007] an adjustment component, which may be disposed on the second coil structure of the magnetic resonance coil device, the adjustment component having a locked position and an unlocked position;

[0008] The adjusting component is in the locking position, the adjusting component abuts against the locking component and is locked by the locking component; the adjusting component is in the unlocking position, the adjusting component is disengaged from the locking component, so that the second coil structure and the first coil structure can move relative to each other.

[0009] In one embodiment, the adjustment assembly includes a mounting shell and an adjustment screw arranged on the mounting shell, the mounting shell is fixed to the second coil structure, the adjustment screw can drive the mounting shell to move and rotate relative to the mounting shell, and when the adjustment screw moves, its end can move into the locking assembly.

[0010] In one embodiment, the locking assembly includes a locking shell, which is fixed to the first coil structure, and the locking shell is used to install the end of the adjusting screw and lock the adjusting screw.

[0011] In one embodiment, the adjusting screw has a spiral groove, and the locking shell has a locking protrusion inside, and the locking protrusion is screwed together with the spiral groove to lock the adjusting screw.

[0012] In one embodiment, the adjustment assembly further includes an adjustment knob, the end of the adjustment screw away from the locking assembly extends out of the mounting housing, and the adjustment knob is installed thereon, and the adjustment knob is used to drive the adjustment screw to move and rotate.

[0013] In one of the embodiments, the locking structure also includes a self-locking component, which is movably disposed on the mounting shell and sleeved on the adjusting screw. The self-locking component can lock the adjusting screw in the unlocked position and unlock the adjusting screw in the rotational position so that the adjusting screw can rotate.

[0014] In one embodiment, the adjusting screw has a self-locking groove, and the self-locking assembly includes a self-locking sleeve, which is sleeved on the adjusting screw. The inner wall of the self-locking sleeve has a locking rib, and the locking rib can be moved into or out of the self-locking groove. The locking rib moves into the self-locking groove, and the locking rib limits the rotation of the adjusting screw.

[0015] A magnetic resonance coil device, comprising:

[0016] The first coil structure;

[0017] a second coil structure capable of being combined with the first coil structure; and

[0018] A locking structure, comprising a locking component and an adjusting component, wherein the locking component is arranged on the second coil structure of the magnetic resonance coil device, the adjusting component is arranged on the first coil structure of the magnetic resonance coil device, and the adjusting component has a locking position and an unlocking position;

[0019] When the adjusting component is in the locking position, the adjusting component abuts against the locking component and is locked by the locking component, so that the first coil structure is fixed relative to the second coil structure; when the adjusting component is in the unlocking position, the adjusting component is disengaged from the locking component, so that the first coil structure and the second coil structure can move relative to each other.

[0020] In one embodiment, the first coil structure includes an upper receiving coil and a lower receiving coil, wherein the upper receiving coil is detachably or fixedly arranged at the upper part of the accommodating space; and a part or all of a curved surface of the lower receiving coil is configured to form a receiving groove.

[0021] In one embodiment, the first coil structure includes a lower portion of the receiving coil; a portion or all of the lower portion of the receiving coil is configured with a curved surface to form a receiving groove.

[0022] After adopting the above technical solution, the present invention has at least the following technical effects:

[0023] In the locking structure and magnetic resonance coil device of the present invention, the adjustment component can move relative to the locking component in the unlocking position and the locking position. When the adjustment component is in the unlocking position, the adjustment component is separated from the locking component, at which time the second coil structure can move relative to the first coil structure, so that the scanning object can be moved in or out between the first coil structure and the second coil structure; when the adjustment component is in the locking position, the adjustment component abuts against the locking component and is locked by the locking component, at which time the second coil structure is fixed to the first coil structure by the locking component. By locking and unlocking the adjustment component by the locking component, the problem of relative movement of the coil components of the current magnetic resonance system after assembly can be effectively solved, so that the second coil structure can be reliably locked to the first coil structure during imaging, avoiding the position of the second coil structure from moving, and ensuring the accuracy of the imaging results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a locking structure according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 An exploded view of the locking structure shown;

[0026] Figure 3 for Figure 1 An exploded view of the locking structure is shown, wherein the locking shell and the mounting shell are cut apart;

[0027] Figure 4 for Figure 1 A cross-sectional view of the locking structure shown with the adjusting screw in a rotated position;

[0028] Figure 5 for Figure 1 A cross-sectional view of the locking structure shown, wherein the adjusting screw is in the locked position;

[0029] Figure 6 for Figure 1 A cross-sectional view of the locking structure shown, wherein the adjusting screw is moved from the unlocked position to the rotated position;

[0030] Figure 7 for Figure 1 A cross-sectional view of the locking structure shown, with the adjustment assembly in the unlocked position;

[0031] Figure 8 for Figure 3 An exploded schematic diagram of the adjustment component and the self-locking component in the locking structure shown;

[0032] Fig. 9 for Figure 8 A perspective view of a self-locking sleeve in a self-locking assembly shown;

[0033] Fig.10 for Figure 5 A cross-sectional view of the locking structure shown;

[0034] Fig.11 for Figure 1 The locking structure shown is applied to a partial cutaway view of a magnetic resonance coil device;

[0035] Fig.12 for Fig.11 A three-dimensional diagram of a first coil structure in the magnetic resonance coil device shown;

[0036] Fig.13 for Fig.11 A three-dimensional diagram of a first coil structure installation locking structure in the magnetic resonance coil device shown;

[0037] Fig.14 for Fig.11 A three-dimensional view of the second coil structure in the magnetic resonance coil device as viewed from one angle, with the upper part of the receiving coil and the locking structure mounted thereon;

[0038] Fig.15 for Fig.14 The second coil structure shown is a three-dimensional view of the upper part of the receiving coil and the locking structure installed from one angle;

[0039] Fig.16 for Fig.15 The upper part of the receiving coil shown is connected Figure 1 A cross-sectional view of the adjustment assembly in the middle locking structure;

[0040] Fig.17 for Fig.16 The upper part of the receiving coil shown is connected Figure 1 A partial enlarged view of the adjustment component in the middle locking structure;

[0041] Fig.18 for Fig.15 A partial exploded schematic diagram of the second coil structure shown;

[0042] Fig.19 for Figure 1The locking structure shown is a structural diagram of the use after locking the first coil structure and the second coil structure.

[0043] Wherein: 100, locking structure; 110, locking assembly; 111, locking shell; 1111, locking protrusion; 112, mounting seat; 120, adjusting assembly; 121, mounting shell; 1211, first fixing groove; 122, adjusting screw; 1221, spiral groove; 1222, self-locking groove; 12223, second fixing groove; 123, adjusting knob; 130, self-locking assembly; 131, self-locking sleeve; 1311, locking convex rib; 132, elastic member; 140, angle adjustment assembly; 141, angle adjustment member; 142, reset member; 200, first coil structure; 220, lower part of receiving coil; 221, first shell; 2211, storage groove; 300, second coil structure; 310, transmitting coil; 320, upper part of receiving coil; 321, fixing block; 400, examination bed. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0050] See also Fig.11 , Figures 1 to 7 The present invention provides a locking structure 100. The locking structure 100 is applied to a magnetic resonance coil device, and is used to realize the locking and unlocking of a first coil structure 200 and a second coil structure 300 in the magnetic resonance coil device, and the first coil structure 200 and the second coil structure 300 can be combined together. When the locking structure 100 is locked, the first coil structure 200 and the second coil structure 300 are fixed, and the second coil structure 300 cannot move relative to the first coil structure 200. When the locking structure 100 is unlocked, the second coil structure 300 can be driven to move relative to the first coil structure 200. Of course, in other embodiments of the present invention, the locking structure 100 can also be applied to other devices that need to be locked. In the present invention, only the application of the locking structure 100 in a magnetic resonance coil device is used as an example for description.

[0051] It is understandable that, for a magnetic resonance system, especially a magnetic resonance system for the head, it usually has two parts, an upper and a lower part, which can move relatively to realize the operation of the magnetic resonance system. However, in actual use, the position between the upper and lower parts cannot be fixed, and the vibration of the magnetic resonance system during operation will also cause the upper and lower parts to be misaligned, affecting the accuracy of the imaging results. To this end, the present invention provides a new locking structure 100, which can realize the locking and unlocking of the magnetic resonance coil device. The specific structure of the locking structure 100 is described in detail below.

[0052] See also Fig.11 , Figures 1 to 7 In one embodiment, the locking structure 100 includes a locking component 110 and an adjusting component 120. The locking component 110 may be / can be arranged on the first coil structure 200 of the magnetic resonance coil device. The adjusting component 120 may be arranged on the second coil structure 300 of the magnetic resonance coil device, and the adjusting component 120 has a locking position and an unlocking position. When the adjusting component 120 is in the locking position, the adjusting component 120 abuts against the locking component 110 and is locked by the locking component 110. When the adjusting component 120 is in the unlocking position, the second coil structure 300 and the first coil structure 200 form a combined structure; the adjusting component 120 is separated from the locking component 110, so that the second coil structure 300 and the first coil structure 200 can move relative to each other or separate from each other, and the combined structure of the second coil structure 300 and the first coil structure 200 can be disassembled by driving the second coil structure 300 with an external force. The magnetic resonance coil device may be, for example, a head coil, a knee joint coil, an abdominal coil, an ankle coil, etc.

[0053] The locking assembly 110 is disposed on the first coil structure 200. The locking assembly 110 is a locking component of the locking structure 100 and is used to achieve locking and unlocking of the locking structure 100. The adjusting assembly 120 is a moving component of the locking structure 100. The adjusting assembly 120 is disposed on the second coil structure 300. The adjusting assembly 120 can drive the second coil structure 300 to move, so that the second coil structure 300 is fixed to or unlocked from the first coil structure 200.

[0054] The adjustment component 120 can drive the second coil structure 300 to move relative to the locking component 110, and can move between the unlocked position and the locked position. When the adjustment component 120 is in the unlocked position, the adjustment component 120 is separated from the locking component 110, and the adjustment component 120 can move relative to the locking component 110. At this time, there is a certain distance between the adjustment component 120 and the locking component 110, and accordingly, there is also a certain distance between the second coil structure 300 and the first coil structure 200. The second coil structure 300 does not cover the first coil structure 200, so that it is convenient for the scanned object to move into or out of the first coil structure 200.

[0055] The adjustment component 120 is in the locked position, and the adjustment component 120 abuts against the locking component 110. At this time, the locking component 110 locks the adjustment component 120, and the adjustment component 120 cannot move relative to the locking component 110. In addition, the second coil structure 300 is covered by the first coil structure 200, and the scanned object is located between the first coil structure 200 and the second coil structure 300. In this way, the position between the second coil structure 300 and the first coil structure 200 can be fixed, ensuring the accuracy of the imaging result of the scanned object.

[0056] When the locking structure 100 of the present invention is actually used, the adjustment component 120 is in the unlocked position. After the scanning object is moved into the first coil structure 200, the adjustment component 120 is pushed to drive the second coil structure 300 to move toward the first coil structure 200, so that the second coil structure 300 covers the first coil structure 200. At this time, the adjustment component 120 moves from the unlocked position to the locked position and is locked by the locking component 110, so that the second coil structure 300 is accurately covered on the outside of the first coil structure 200.

[0057] Subsequently, the scanned object can be imaged. During the imaging process, the locking component 110 locks the adjusting component 120, thereby limiting the movement of the second coil structure 300 relative to the first coil structure 200, so that the position of the second coil structure 300 is fixed, thereby preventing the second coil structure 300 from deviating from the first coil structure 200 due to vibration during imaging, thereby ensuring the accuracy of the imaging results and facilitating subsequent diagnosis by medical staff.

[0058] After the imaging is completed, the adjustment component 120 is dragged to drive the second coil structure 300 to move in a direction away from the first coil structure 200, and the adjustment component 120 gradually disengages from the locking component 110, so that the second coil structure 300 is disengaged from the first coil structure 200. At this time, the adjustment component 120 moves from the locked position to the unlocked position to complete the unlocking of the second coil structure 300. Subsequently, the scanned object can be moved out of the first coil structure 200.

[0059] The locking structure 100 of the above-mentioned embodiment can effectively solve the problem of relative movement between the upper and lower parts of the current magnetic resonance system during imaging by locking and unlocking the adjustment component 120 through the locking component 110, so that the second coil structure 300 can be reliably locked to the first coil structure 200 during imaging, thereby avoiding the position of the second coil structure 300 from moving, thereby ensuring the accuracy of the imaging results.

[0060] See also Fig.11 , Figures 1 to 7In one embodiment, the adjustment assembly 120 includes a mounting shell 121 and an adjustment screw 122 disposed on the mounting shell 121. The mounting shell 121 is fixed to the second coil structure 300. The adjustment screw 122 can drive the mounting shell 121 to move and rotate relative to the mounting shell 121, and the end of the adjustment screw 122 can move into the locking assembly 110 when the adjustment screw 122 moves.

[0061] The mounting shell 121 is used to realize the installation of the adjustment component 120 and the second coil structure 300. The adjustment component 120 is fixed on the second coil structure 300 through the mounting shell 121. In this way, when the second coil structure 300 moves, the adjustment component 120 can be driven to move synchronously through the mounting shell 121. Moreover, when the adjustment component 120 needs to be locked, the mounting shell 121 can be driven to move the second coil structure 300 synchronously to avoid excessive movement of the second coil structure 300. At the same time, it can also avoid interference with the mounting shell 121 and the second coil structure 300 to ensure the accuracy of the movement.

[0062] Moreover, the mounting housing 121 can also play a bearing role. The moving parts of the adjustment assembly 120 are arranged on the inner wall of the mounting housing to prevent external parts from contacting the adjustment assembly 120, thereby ensuring the accuracy of the movement of the adjustment assembly 120, and further ensuring that the adjustment assembly 120 can accurately cooperate with the locking assembly 110 to achieve reliable locking and unlocking. The moving part of the adjustment assembly 120 is the adjustment screw 122, which is stuck in the mounting housing and can be rotatably arranged in the mounting housing 121. Specifically, the adjustment screw 122 can drive the mounting housing 121 to move synchronously and drive the mounting housing 121 to rotate.

[0063] When the adjusting screw 122 is in the unlocked position, the end of the adjusting screw 122 is separated from the locking assembly 110, and the locking assembly 110 does not lock the adjusting screw 122. The adjusting assembly 120 can drive the mounting housing 121 to move freely and rotate relative to the mounting housing 121. When the adjusting screw 122 drives the mounting housing 121 to move toward the locking assembly 110 to the locked position, the adjusting screw 122 abuts against the locking assembly 110. At this time, the locking assembly 110 locks the adjusting screw 122, limiting the movement of the adjusting screw 122 in the mounting housing 121.

[0064] Optionally, the end of the adjusting screw 122 is exposed from the mounting housing 121. In this way, the end of the adjusting screw 122 exposed from the mounting housing 121 can cooperate with the locking assembly 110. Of course, the end of the adjusting screw 122 can also be located inside the mounting housing 121. At this time, when the adjusting screw 122 drives the mounting housing 121 to move synchronously, the mounting housing 121 can gradually cover the locking assembly 110, so that the locking assembly 110 cooperates with the adjusting screw 122 inside the mounting housing 121.

[0065] See also Figure 8 , Fig.16 and Fig.17 In one embodiment, the second coil structure 300 has a fixing block 321, the mounting housing 121 is provided with a first fixing groove 1211, and the adjusting screw 122 is provided with a second fixing groove 1223 corresponding to the first fixing groove 1211. When the adjusting assembly 120 is installed on the second coil structure 300, the fixing block 321 passes through the first fixing groove 1211 and extends into the second fixing groove 1223. In this way, when the adjusting screw 122 moves, the adjusting screw 122 can drive the mounting housing 122 and the second coil structure 300 to move synchronously through the cooperation of the second fixing groove 1223, the fixing block 321 and the first fixing groove 1211.

[0066] See also Fig.11 , Figures 1 to 7 In one embodiment, the locking assembly 110 includes a locking shell 111, which is fixed to the first coil structure 200. The locking shell 111 is used to install the end of the adjusting screw 122 and lock the adjusting screw 122. The locking shell 111 is a fixed structure of the locking assembly 110, which is used to realize the fixed connection between the locking assembly 110 and the first coil structure 200, so that the locking assembly 110 is reliably fixed to the first coil structure 200. In this way, after the adjusting screw 122 extends into the locking shell 111 and contacts the locking shell 111, the locking shell 111 can reliably fix the adjusting screw 122, so that the adjusting screw 122 is fixed in the locked position, ensuring that the adjusting screw 122 is reliably locked, avoiding the position of the adjusting screw 122 from moving, and thus avoiding the position of the second coil structure 300 from moving.

[0067] When the locking structure 100 of the present invention locks the first coil structure 200 and the second coil structure 300, the end of the adjusting screw 122 extends into the locking shell 111, and the adjusting screw 122 is fixed by the locking shell 111 to limit the displacement of the adjusting screw 122, so that the second coil structure 300 is fixed to the first coil structure 200 through the cooperation between the locking shell 111 and the adjusting screw 122, thereby achieving the locking of the first coil structure 200 and the second coil structure 300. When the locking structure 100 unlocks the first coil structure 200 and the second coil structure 300, the end of the adjusting screw 122 moves out of the locking shell 111, and the locking shell 111 no longer limits the adjusting screw 122. At this time, the second coil structure 300 can move relative to the first coil structure 200, thereby achieving the unlocking of the first coil structure 200 and the second coil structure 300.

[0068] It is understandable that the locking shell 111 can be directly mounted on the first coil structure 200. Of course, the locking shell 111 can also be indirectly disposed on the first coil structure 200. Optionally, the locking assembly 110 further includes a mounting seat 112, which is disposed on the locking shell 111, and the locking shell 111 is fixed to the first coil structure 200 through the mounting seat 112. It is understandable that the structural form of the mounting seat 112 is not limited in principle, as long as the locking shell 111 can be fixed to the first coil structure 200. Exemplarily, the mounting seat 112 is a support plate or the like.

[0069] See also Fig.11 , Figures 1 to 7 In one embodiment, the adjusting screw 122 has a spiral groove 1221, and the locking shell 111 has a locking protrusion 1111 inside. The locking protrusion 1111 is screwed together with the spiral groove 1221 to lock the adjusting screw 122. The outer wall of the adjusting screw 122 has a spiral groove 1221 arranged along its axial direction, and the inner wall of the locking shell 111 has a locking protrusion 1111 protruding in the radial direction, and the locking protrusion 1111 can cooperate with the spiral groove 1221.

[0070] Specifically, after the adjusting screw 122 moves into the locking shell 111, the end of the spiral groove 1221 of the adjusting screw 122 corresponds to the locking protrusion 1111. When locking, the adjusting screw 122 is rotated, and the spiral groove 1221 of the adjusting screw 122 slides along the locking protrusion 1111. When the locking protrusion 1111 abuts against the end of the spiral groove 1221, it indicates that the adjusting screw 122 has moved into place, and the adjusting screw 122 will no longer rotate or move, thereby achieving the locking of the adjusting screw 122. When unlocking, the adjusting screw 122 is rotated in the opposite direction, so that the adjusting screw 122 drives the spiral groove 1221 to slide along the locking protrusion 1111, so that the locking protrusion 1111 gradually slides out of the spiral groove 1221. When the locking protrusion 1111 is separated from the spiral groove 1221, the adjusting screw 122 can move axially to slide out of the locking shell 111, thereby achieving the unlocking of the adjusting screw 122.

[0071] It can be understood that in order to facilitate the cooperation between the locking protrusion 1111 and the spiral groove 1221 of the adjusting screw 122, the two ends of the spiral groove 1221 are the entrance and the limiting end respectively. When locking, the adjusting screw 122 moves into the locking shell 111 so that the spiral groove 1221 is aligned with the entrance of the spiral groove 1221, and then the adjusting screw 122 can be rotated. When the locking protrusion 1111 contacts the limiting end of the spiral groove 1221, it indicates that the adjusting screw 122 is rotated in place, and the locking of the adjusting screw 122 is completed. When unlocking, the adjusting screw 122 is rotated so that the locking protrusion 1111 is disengaged from the limiting end of the spiral groove 1221 and slides out from the entrance of the spiral groove 1221, and then the adjusting screw 122 is moved out of the locking shell 111, and the unlocking of the adjusting screw 122 is completed.

[0072] Optionally, there are two spiral grooves 1221, the phase difference between the two spiral grooves 1221 is 180°, and the locking protrusion 1111 is arranged corresponding to the spiral groove 1221. Of course, in other embodiments of the present invention, the number of the spiral groove 1221 can also be one or more.

[0073] See also Fig.11 , Figures 1 to 7 In one embodiment, the adjustment assembly 120 further includes an adjustment knob 123, the end of the adjustment screw 122 away from the locking assembly 110 extends out of the mounting housing 121, and the adjustment knob 123 is installed, and the adjustment knob 123 is used to drive the adjustment screw 122 to move and rotate. The adjustment knob 123 can facilitate the locking and unlocking operations of the adjustment screw 122. It can be understood that the form of the adjustment knob 123 is not limited in principle, as long as it can be convenient for medical staff to operate. Exemplarily, the adjustment knob 123 is an operating wrench. Of course, in other embodiments of the present invention, the adjustment knob 123 can also be other components that can realize rotation operations.

[0074] Specifically, one end of the adjusting screw 122 extends out of the mounting housing 121 and is exposed inside the space surrounded by the second coil structure 300. The adjusting knob 123 is fixedly disposed on the extending end of the adjusting screw 122 and can drive the adjusting screw 122 to rotate and move. Medical staff can push or pull the adjusting screw 122 to move and rotate the adjusting screw 122 through the adjusting knob 123, so as to achieve the matching of the adjusting screw 122 with the locking housing 111.

[0075] In one embodiment, the adjustment assembly 120 also has a rotation position, which is located between the unlocking position and the locking position. The adjusting screw 122 moves from the unlocking position to the rotation position so that the locking protrusion 1111 is located at the entrance of the spiral groove 1221; the adjusting screw 122 can rotate at the rotation position through the cooperation between the locking protrusion 1111 and the spiral groove 1221, so that the adjusting screw 122 moves to the locking position.

[0076] The rotation position is the end position of the movement of the adjusting screw 122 when it is locked and the starting position of the rotation. In the initial state, the adjusting screw 122 is in the unlocked position. Push the adjusting screw 122 to move from the unlocked position toward the locking shell 111, that is, push the adjusting screw 122 to move leftward along the direction shown in the figure, and the adjusting screw 122 moves from the unlocked position to the rotation position. At this time, the end of the adjusting screw 122 is located in the locking shell 111, and the locking protrusion 1111 in the locking shell 111 is located at the entrance of the spiral groove 1221 of the adjusting screw 122.

[0077] Subsequently, the adjusting screw 122 is rotated, and the adjusting screw 122 can drive the spiral groove 1221 to slide along the locking protrusion 1111. When the locking protrusion 1111 abuts against the limiting end of the spiral groove 1221, it indicates that the adjusting screw 122 moves to the locking position. At this time, the adjusting screw 122 no longer rotates and moves, and the locking shell 111 locks the adjusting screw 122 through the locking protrusion 1111, thereby fixing the second coil structure 300. When unlocking, the adjusting screw 122 is rotated in the opposite direction, so that the adjusting screw 122 moves from the locking position to the rotating position, and then the adjusting screw 122 is moved to the right, so that the adjusting screw 122 moves out of the locking shell 111 and moves from the rotating position to the unlocking position.

[0078] See also Fig.11 , Figures 1 to 7 In one embodiment, the locking structure 100 also includes a self-locking component 130, which can be movably disposed on the mounting housing 121 and sleeved on the adjusting screw 122. The self-locking component 130 can lock the adjusting screw 122 in an unlocked position and unlock the adjusting screw 122 in a rotational position, so that the adjusting screw 122 can rotate.

[0079] It is understandable that if the adjusting screw 122 does not rotate in the unlocked position, when the adjusting screw 122 moves from the unlocked position to the unlocked position, the entrance of the spiral groove 1221 can be aligned with the locking protrusion 1111. If the adjusting screw 122 rotates a certain angle in the unlocked position, the entrance of the spiral groove 1221 on the adjusting screw 122 will also rotate a certain angle accordingly. In this case, when the adjusting screw 122 moves from the unlocked position to the rotated position, the locking protrusion 1111 will not correspond to the entrance of the spiral groove 1221. If the adjusting screw 122 is rotated again, the spiral groove 1221 will not be able to cooperate with the locking protrusion 1111, and the locking of the adjusting screw 122 cannot be achieved.

[0080] To this end, the present invention adds a self-locking component 130 in the locking structure 100, and realizes locking of the adjusting screw 122 in the unlocking position through the self-locking component 130, limits the rotation of the adjusting screw 122, and limits the adjusting screw 122 to ensure that the entrance of the spiral groove 1221 of the adjusting screw 122 can be aligned with the locking protrusion 1111, so as to facilitate the subsequent locking cooperation between the adjusting screw 122 and the locking shell 111, so that the locking screw is accurately locked in the locking position, thereby ensuring that the second coil structure 300 is reliably fixed.

[0081] In the initial state, the adjusting screw 122 is in the unlocked position and separated from the locking shell 111. The locking assembly 110 abuts against the adjusting screw 122 to restrict the rotation of the adjusting screw 122. However, the adjusting screw 122 can move relative to the self-locking assembly 130. When the adjusting screw 122 needs to be locked, the adjusting screw 122 is pushed toward the locking shell 111 and gradually extends into the locking shell 111. During this process, the locking shell 111 contacts the self-locking assembly 130, so that the self-locking assembly 130 no longer locks the adjusting screw 122. The adjusting screw 122 moves to the rotation position, and the entrance of the spiral groove 1221 is aligned with the locking protrusion 1111. The adjusting screw 122 can rotate and rotate to the locked position.

[0082] When the adjusting screw 122 is unlocked, the adjusting screw 122 moves from the locked position to the rotated position, and moves the adjusting screw 122 in the direction away from the locking shell 111. At this time, the adjusting screw 122 gradually disengages from the locking shell 111, and the self-locking component 130 gradually restores the locking of the adjusting screw 122. When the adjusting screw 122 moves to the unlocked position, the self-locking component 130 completely restricts the rotation of the adjusting screw 122. At this time, the adjusting screw 122 is locked in the unlocked position.

[0083] In one embodiment, the adjusting screw 122 has a self-locking groove 1222, and the self-locking assembly 130 includes a self-locking sleeve 131, which is sleeved on the adjusting screw 122, and the inner wall of the self-locking sleeve 131 has a locking rib 1311, which can move into or out of the self-locking groove 1222. The locking rib 1311 moves into the self-locking groove 1222, and the locking rib 1311 limits the rotation of the adjusting screw 122.

[0084] The self-locking sleeve 131 is slidably connected to the mounting housing 121, and the mounting housing 121 limits the rotation of the self-locking sleeve 131, and the self-locking sleeve 131 can move along the axial direction of the mounting housing 121. In addition, the self-locking sleeve 131 is also sleeved on the adjusting screw 122, and when the adjusting screw 122 moves, it can drive the self-locking sleeve 131 to move synchronously. When the locking shell 111 contacts the self-locking sleeve 131, the adjusting screw 122 can also move relative to the self-locking sleeve 131.

[0085] The adjusting screw 122 is in the unlocked position, and the locking rib 1311 of the self-locking sleeve 131 extends into the self-locking groove 1222 of the adjusting screw 122. Since the self-locking sleeve 131 is limited by the rotation of the mounting housing 121 and cannot rotate, the adjusting screw 122 cannot rotate in the unlocked position. In the process of the adjusting screw 122 moving from the unlocked position to the rotation position, the adjusting screw 122 drives the self-locking sleeve 131 to move synchronously. When the end of the adjusting screw 122 gradually moves into the locking shell 111, the locking shell 111 will push the self-locking sleeve 131 to separate from the movement of the adjusting screw 122, so that the self-locking sleeve 131 no longer moves synchronously with the adjusting screw 122. In this way, the locking rib 1311 of the self-locking sleeve 131 will gradually disengage from the self-locking groove 122, so that the adjusting screw 122 can rotate in the rotation position.

[0086] When the adjusting screw 122 moves from the rotation position to the unlocking position, the adjusting screw 122 will gradually move out of the locking shell 111. At this time, the self-locking groove 1222 will gradually approach the locking rib 1311. After the adjusting screw 122 moves out of the locking shell 111, the locking protrusion 1111 will extend into the self-locking groove 1222. In addition, the adjusting screw 122 will continue to drive the self-locking sleeve 131 to move until it moves to the unlocking position. At this position, the self-locking sleeve 131 locks the adjusting screw 122 through the cooperation between the locking rib 1311 and the groove, thereby limiting the rotation of the adjusting screw 122.

[0087] Optionally, the number of the self-locking grooves 1222 is multiple, the number of the locking ribs 1311 is also multiple, and the locking protrusion 1111 cooperates with the self-locking grooves 1222 to realize the self-locking sliding sleeve 131 locking the adjusting screw 122. The position of the locking rib 1311 is set corresponding to the self-locking grooves 1222. Exemplarily, the number of the self-locking grooves 1222 is two, and correspondingly, the number of the locking ribs 1311 is also two, and they are set corresponding to the self-locking grooves 1222. Of course, in other embodiments of the present invention, the number of the locking ribs 1311 can also be one or more.

[0088] In one embodiment, the self-locking assembly 130 further includes an elastic member 132, which is sleeved on the adjusting screw 122, one end of the elastic member 132 abuts against the self-locking sleeve 131, and the other end of the elastic member 132 is fixed to the adjusting screw 122. In the unlocking position, the elastic force of the elastic member 132 causes the locking rib 1311 to be locked in the self-locking groove 1222, and in the rotating position, the locking shell 111 pushes the self-locking sleeve 131 to compress the elastic member 132, so that the locking rib 1311 is disengaged from the self-locking groove 1222.

[0089] The elastic member 132 is used to make the locking rib 1311 always extend into the self-locking groove 1222 in the unlocked position, to prevent the locking rib 1311 from moving out, to ensure that the locking rib 1311 can be reliably matched with the self-locking groove 1222, and the elastic member 132 is also used to realize the automatic resetting of the self-locking sleeve 131, so that the self-locking sleeve 131 and the adjusting screw 122 are kept in the unlocked position when unlocked, to prevent vibration or other external forces from causing the adjusting screw 122 to move in the unlocked position, so that the adjusting screw 122 is reliably kept in the unlocked position. Optionally, the elastic member 132 is a spring. One end of the elastic member 132 abuts against the self-locking sleeve 131, and the other end of the elastic member 132 abuts against the adjusting screw 122.

[0090] When the adjusting screw 122 moves from the unlocking position to the rotating position, the adjusting screw 122 drives the self-locking sleeve 131 and the elastic member 132 to move toward the locking shell 111. When the adjusting screw 122 extends into the locking shell 111, the locking shell 111 pushes the self-locking sleeve 131 to compress the elastic member 132, so that the locking rib 1311 gradually moves out of the self-locking groove 1222, so that the adjusting screw 122 can rotate. When the adjusting screw 122 moves from the rotation position to the unlocking position, the adjusting screw 122 gradually moves out of the locking shell 111, and the pressure of the locking shell 111 on the self-locking sleeve 131 gradually decreases, so that the elastic member 132 pushes the self-locking sleeve 131 to gradually move in the direction of the self-locking groove 1222. When the adjusting screw 122 is completely moved out of the locking shell 111, the locking shell 111 is separated from the self-locking sleeve 131. At this time, the elastic force of the elastic member 132 resets the self-locking sleeve 131, that is, the locking rib 1311 is stuck in the self-locking groove 1222, thereby locking the adjusting screw 122 in the unlocking position and preventing the adjusting screw 122 from rotating in the unlocking position.

[0091] See also Figures 2 to 7 In one embodiment, the locking structure 100 further includes an angle adjustment component 140, which is disposed between the mounting housing 121 and the adjusting knob 123, and is used to lock the adjusting knob 123. The angle adjustment component 140 is disposed between the adjusting screw 122 and the adjusting knob 123, and the angle adjustment component 140 can increase the rotation resistance of the adjusting knob 123, so that the adjusting knob 123 remains in the current position, and prevents the adjusting knob 123 from driving the adjusting screw 122 to move under the action of external forces such as vibration. It can be understood that the angle adjustment component 140 and the self-locking component 130 are located on both sides of the second fixing groove, and when the fixing block of the second coil structure 300 is located in the second fixing groove, the angle adjustment component 140 and the self-locking component 130 are located on both sides of the fixing block.

[0092] It can be understood that the angle adjustment component 140 has a protruding position, and outside the protruding position is an arc-shaped recessed setting. The protruding position corresponds to the rotation position and the locking position respectively. When the adjusting knob 123 drives the adjusting screw 122 to move from the rotation position to the locking position, the adjusting knob 123 abuts against the protruding position of the angle adjustment component 140. When the adjusting knob 123 passes the protruding position, the arc-shaped recess can guide the adjusting knob 123 to rotate. In other words, the protruding position is an extreme position. At the protruding position, it is more laborious to rotate the adjusting knob 123. When it passes the protruding position, it is less laborious to rotate the adjusting knob 123.

[0093] The present invention prompts the medical staff to operate the adjustment knob 123 through the angle adjustment component 140. When the adjustment knob 123 is vibrated or accidentally touched, the protruding position of the angle adjustment component 140 can provide a certain limiting force on the adjustment knob 123, and the limiting force limits the rotation of the adjustment knob 123, so that the adjustment knob 123 is reliably located in the unlocked position or the locked position. When the operator's force on the adjustment knob 123 exceeds the above-mentioned limiting force, the adjustment knob 123 can pass the protruding position, so that the adjustment knob 123 drives the adjustment screw 122 to move to the unlocked position or the locked position.

[0094] In one embodiment, the angle adjustment assembly 140 includes an angle adjustment member 141 and a reset member 142. The reset member 142 is disposed between the mounting housing 121 and the angle adjustment member 141, and is used to make the angle adjustment member 141 abut against the knob. The angle adjustment member 141 has a protruding position, and an arc-shaped recessed portion is formed between the two protruding positions, such as Figure 2 and Figure 7 The angle adjustment member 141 can be slidably mounted on the adjustment screw 122, and the adjustment knob 123 is installed on the end of the adjustment screw 122. The reset member 142 is arranged at one end of the angle adjustment member 141 away from the adjustment knob 123, and the reset member 142 abuts against the mounting housing 121 and the angle adjustment member 141 respectively.

[0095] When the adjusting knob 123 abuts against the protruding position of the angle adjusting member 141, the adjusting knob 123 compresses the reset member 142 through the angle adjusting member 141, so that the adjusting knob 123 can drive the adjusting screw 122 to rotate. When the adjusting knob 123 is rotated to the right position, the adjusting knob 123 is released, and the elastic force of the reset member 142 abuts against the angle adjusting member 141, so that the angle adjusting member 141 abuts against the adjusting knob 123, limiting the rotation of the adjusting knob 123, and ensuring that the position of the adjusting knob 123 is fixed reliably. Optionally, the reset member 142 is a spring.

[0096] See also Fig.11 , 1 to Figure 7When the locking structure 100 of the present invention is locked, the adjusting knob 123 is pushed to drive the adjusting screw 122 to move from the unlocking position to the rotating position, so that the entrance of the spiral groove 1221 of the adjusting screw 122 is aligned with the locking protrusion 1111. In this process, the adjusting screw 122 drives the self-locking sleeve 131 to move synchronously. When the adjusting screw 122 extends into the locking shell 111, the locking shell 111 contacts and pushes the self-locking sleeve 131, so that the self-locking sleeve 131 drives the locking rib 1311 to disengage from the self-locking groove 1222, so that the adjusting screw 122 can rotate. Subsequently, the adjusting knob 123 is rotated to drive the adjusting screw 122 to rotate, so that the spiral groove 1221 moves along the locking protrusion 1111, so that the adjusting screw 122 moves to the locking position, and the movement of the adjusting screw 122 is limited by the locking protrusion 1111, so that the locking of the adjusting screw 122 is achieved.

[0097] When unlocking the adjusting screw 122, the adjusting knob 123 is rotated in the reverse direction, and the adjusting knob 123 drives the adjusting screw 122 to rotate, so that the locking protrusion 1111 slides out of the spiral groove 1221. At this time, the adjusting screw 122 is in a rotating position. Then the adjusting screw 122 is moved in the reverse direction, so that the adjusting screw 122 is separated from the locking shell 111 and then moves to the unlocking position. In the process of the adjusting screw 122 being separated from the locking shell 111, the force exerted by the locking shell 111 on the self-locking sleeve 131 gradually decreases, and the elastic force of the elastic member 132 pushes the self-locking sleeve 131 to gradually move toward the self-locking groove 1222. After the locking rib 1311 is clamped in the self-locking groove 1222, the self-locking sleeve 131 locks the adjusting screw 122 in the unlocking position to limit the rotation of the adjusting screw 122.

[0098] It is worth noting that the adjusting screw 122 is movably arranged on the second coil structure 300 through the mounting housing 121, and the locking housing 111 is fixed to the first coil structure 200. The movement of the adjusting screw 122 and the locking housing 111 will drive the first coil structure 200 and the second coil structure 300 to move, and the first coil structure 200 and the second coil structure 300 are locked with the movement of the adjusting screw 122 and the locking housing 111, so that the two are fixed reliably. In this way, the potential scanning risk caused by the vibration or movement of the coil assembly due to the movement of the scanned object during long-term scanning can be prevented.

[0099] See also Figures 11 to 15The present invention also provides a magnetic resonance coil device, comprising a first coil structure 200, a second coil structure 300 and a locking structure 100. The first coil structure 200 can be combined with the second coil structure 300, and the second coil structure 300 has a storage space that at least partially stores the first coil structure 200. The first coil structure 200 can move axially along the storage space so that the first coil structure 200 is at least partially located at the lower part of the storage space. The locking structure 100 includes a locking component 110 and an adjusting component 120. The locking component 110 can be arranged on the second coil structure 300 of the magnetic resonance coil device, and the adjusting component 120 can be arranged on the first coil structure 200 of the magnetic resonance coil device. For example, the adjusting component 120 can be movably / actively arranged on the first coil structure 200 of the magnetic resonance coil device, and the adjusting component 120 has a locking position and an unlocking position. The adjusting component 120 is in the locked position, the adjusting component 120 abuts against the locking component 110 and is locked by the locking component 110, so that the first coil structure 200 is fixed relative to the second coil structure 300; the adjusting component 120 is in the unlocked position, the adjusting component 120 is disengaged from the locking component 110, so that the first coil structure 200 and the second coil structure 300 can move relative to each other.

[0100] It is worth noting that the locking structure 100 used in the magnetic resonance coil device of the present invention is substantially the same as the specific structure and working principle of the locking structure 100 in the above embodiment, which will not be described in detail here. The locking structure 100 is described in the present invention by describing the structure and working principle of the magnetic resonance coil device, but will not be described in detail.

[0101] The first coil structure 200 can be used to receive magnetic resonance signals of a scanned object. The second coil structure 300 can emit radio frequency pulses. Through the cooperation between the first coil structure 200 and the second coil structure 300, imaging of the scanned object is achieved to obtain image information of the scanned object. The locking shell 111 of the locking structure 100 is fixed on the first coil structure 200, and the mounting shell 121 is fixed on the second coil structure 300. The first coil structure 200 and the second coil structure 300 are locked and unlocked by adjusting the screw 122 and the locking shell 111.

[0102] Specifically, when the adjusting knob 123 is rotated to make the adjusting screw 122 in the unlocked position, the second coil structure 300 and the first coil structure 200 are in the unlocked state, and the second coil structure 300 can slide relative to the first coil structure 200, so that the complete coil combination formed by the first coil structure 200 and the second coil structure 300 is separated, and the movement space of the scanned object is withdrawn. Subsequently, after the scanned object lies down, the second coil structure 300 is slid along the first coil structure 200, so that the complete coil combination formed by the first coil structure 200 and the second coil structure 300 is formed, and then the second coil structure 300 and the first coil structure 200 are locked by the locking structure 100. At this time, the scanned object can be imaged. After the imaging is completed, the locking structure 100 is unlocked again, so that the second coil structure 300 is separated from the first coil structure 200, and at this time, the scanned object can be moved out of the first coil structure 100.

[0103] In one embodiment of the present invention, the magnetic resonance coil device is described by taking the head coil as an example, and the first coil structure 200 includes a receiving coil upper part 320 and a receiving coil lower part 220. The second coil structure 300 includes a transmitting coil 320. Specifically, the first coil structure 200 includes a receiving coil upper part 320 and a receiving coil lower part 220, and the receiving coil upper part 320 can be detachably arranged or fixedly arranged at the upper part of the accommodation space; the receiving coil lower part 220 is partially or entirely configured with a curved surface to form an accommodation groove. The receiving coil lower part 220 includes a first shell 221 and a first receiving coil, and the upper surface of the first shell 221 is recessed to form a receiving groove, and the first receiving coil is carried on the surface of the first shell 221 or in the first shell 221. The second coil structure 300 includes a second shell and a transmitting coil 310 arranged inside or on the surface of the second shell, and the second shell radially surrounds to form an accommodation space.

[0104] The second coil structure 300, the upper receiving coil part 320 and the lower receiving coil part 220. The second coil structure 300 may be provided with a transmitting coil 310, which is used to transmit radio frequency pulses. The upper receiving coil part 320 and the lower receiving coil part 220 may be provided with receiving coils respectively, which are used to receive magnetic resonance signals, and the upper receiving coil part 320 may receive magnetic resonance signals of the front part / face of the scanned object, and the lower receiving coil part 220 may be used to receive magnetic resonance signals of the rear part / back of the scanned object. The second coil structure 300 can surround to form a receiving space, and the second coil structure 300 can be driven to form a radio frequency transmitting field / B1 field in the receiving space. The upper receiving coil part 320 can be fixed to the upper part of the receiving space by a static connection method such as riveting and bonding, and can also be set in the upper part of the receiving space by a detachable fixing method such as threaded connection, pin connection, lock connection, plug-in connection, etc. The receiving coil lower part 220 can be used as a supporting component, the second coil structure 300 can be slidably connected to the receiving coil lower part 220, and the second coil structure 300 can move relative to the receiving coil lower part 220 so that the receiving coil lower part 220 is located in the lower part of the accommodation space.

[0105] For example, when the transmitting coil 310 and the upper receiving coil 320 in the second coil structure 300 are not combined, the lower receiving coil 220 is placed on the bed, and the position of the second coil structure 300 is moved so that the lower receiving coil 220 is located in the accommodation space, specifically in the lower part of the accommodation space. After the second coil structure 300 transmits the radio frequency pulse, the lower receiving coil 220 can receive the magnetic resonance signal generated by the scan object alone. For another example, after the transmitting coil 310 and the upper receiving coil 320 in the second coil structure 300 form a detachable combination structure or an integrated combination structure, the position of the second coil structure 300 can be moved to drive the upper receiving coil 320 connected thereto, and the lower receiving coil 220 is located in the lower part of the accommodation space. After the second coil structure 300 transmits the radio frequency pulse, the upper receiving coil 320 and the lower receiving coil 220 at different positions can simultaneously receive the magnetic resonance signal generated by the scan object.

[0106] In one embodiment, part or all of the curved surface of the lower portion 220 of the receiving coil is configured to form a receiving groove, which can be used to accommodate and support at least a part of the scanned object, that is, the receiving groove can be used to accommodate the part of the scanned object that needs to be detected.

[0107] In one embodiment, the lower portion 220 of the receiving coil includes a first shell 221 and a first receiving coil. Part of the upper surface of the first shell 221 is recessed to form a receiving groove, and the first receiving coil is carried in the first shell 221. Of course, it can also be carried on the surface of the first shell 221. The upper surface of the first shell 221 is recessed to form a receiving groove, which extends along the axial direction, and part of the shape of the receiving groove is set to be a semi-dome, which conforms to the morphological characteristics of the human head. While assuming the bearing function, the first receiving coil located in the first shell 221 can also receive the magnetic resonance signal of the back of the head, and the lower portion 220 of the receiving coil plays the main bearing function.

[0108] In one embodiment, the second coil structure 300 includes a second shell and a transmitting coil 310 disposed inside or on the surface of the second shell, the second shell radially surrounds to form a receiving space, and the transmitting coil 310 is used to apply radio frequency pulses to the receiving space. Preferably, the second shell surrounds to form a cylindrical shell, one end of the cylindrical shell is set as a completely open opening, and the other end is set as a semi-enclosed shell with an opening, and the lower part 220 of the receiving coil can partially pass through the opening of the semi-enclosed shell, and the transmitting coil 310 is arranged on the outer surface of the cylindrical shell. Further, the transmitting coil 310 is evenly arranged on the cylindrical shell, so that the transmitting coil 310 provides a uniform transmission field and can meet the reliability and stability of the transmission. The second coil structure 300 can move along the axial direction parallel to the receiving space so that at least part of the lower part 220 of the receiving coil is placed in the lower part of the receiving space.

[0109] Optionally, the transmitting coil 310 can be configured as a birdcage coil or a transmitting array coil. The transmitting coil 310 includes two end rings located at the ends, and a plurality of legs are arranged between the two end rings. The plurality of legs extend from one end ring to the other end ring, and the plurality of legs are arranged side by side along the circumference of the second shell. In this way, the two end rings and the plurality of legs together form a birdcage coil.

[0110] The second shell or the upper part 320 of the receiving coil may include a male connector (not shown in the figure), the first shell 221 includes a female connector, and when the second coil structure 300 moves to a set position along the axial direction of the accommodation space, the male connector and the female connector form a matching structure. The male connector and the female connector may be provided with multiple types of RF needles, DC needles, etc., which are used to drive the transmitting coil 310 of the second coil structure 300, realize the resonance and detuning of the first receiving coil in the lower part 220 of the receiving coil, and realize the resonance and detuning of the second receiving coil in the upper part 320 of the receiving coil.

[0111] For example, when the second coil structure 300 moves to a set position (for example, when the receiving coil upper part 320 and the receiving coil lower part 220 form a complete receiving coil combination, the position corresponding to the second coil structure 300), the male end of the connector and the female end of the connector form a matching structure, and the electrical connection is turned on, so that the second coil structure 300 is connected to an external cable, and the electrical components inside the receiving coil upper part 320 and the receiving coil lower part 220 are turned on and the external cable is turned on, so that the magnetic resonance coil device can be detected. When the second coil structure 300 does not move to the set position (for example, when the receiving coil upper part 320 and the receiving coil lower part 220 do not form a complete receiving coil combination), the male end of the connector and the female end of the connector are separated, and at this time, only the receiving coil lower part 220 can be electrically connected to the external cable, and the second coil structure 300 and the receiving coil upper part 320 cannot be electrically connected to the external power supply.

[0112] By forming a matching structure with the male end of the connector and the female end of the connector, the electrical ports of the upper part 320 of the receiving coil and the lower part 220 of the receiving coil can be reused, and the cables of the plug part can be placed in the lower part 220 of the receiving coil. On the one hand, the number of cables to be set can be reduced, and the transmitting coil 310, the upper part 320 of the receiving coil and the lower part 220 of the receiving coil can be electrically connected to the outside through the connector; on the other hand, the cable can be placed in the stationary lower part 220 of the receiving coil, which can reduce the number of bending times and increase the service life of the cable.

[0113] It is understandable that the placement position of the cable of the plug part is not specifically limited in the embodiment of the present application. In other embodiments, the cable of the plug part can be set at different positions, such as the cable of the plug part electrically connected to the upper part 320 of the receiving coil can be set at the upper part, the cable of the plug part electrically connected to the lower part 220 of the receiving coil can be set at the lower part, and the cable of the plug part electrically connected to the second coil structure 300 can be set at one side, the upper part, the lower part, etc. One or more positions. The cable of the plug part is also not necessary for the magnetic resonance coil device. In other embodiments, the cable of the plug part can be omitted, and an electrical interface is set at the lower part 220 of the receiving coil. Correspondingly, an electrical interface can also be set on the hospital bed, and the electrical interface of the lower part 220 of the receiving coil cooperates with the electrical interface on the hospital bed.

[0114] In one embodiment, the second coil structure 300 further includes a shielding shell, which is sleeved on the outside of the second housing. A shielding layer is provided on the inner wall of the shielding shell to achieve external shielding of the transmitting coil 310, thereby avoiding power loss or other effects on the system.

[0115] The upper part 320 of the receiving coil can be detachably arranged or fixedly arranged at the upper part of the accommodation space. Optionally, the upper part 320 of the receiving coil is fixed to the inner surface of the cylindrical shell, that is, the upper part 320 of the receiving coil is fixed to the inner surface of the second shell. The transmitting coil 310 and the upper part 320 of the receiving coil are arranged on different surfaces of the cylindrical shell, which can prevent the heat generated by the operation of the transmitting coil 310 from affecting the performance of the receiving coil; at the same time, the receiving coil is closer to the scanned object, which can improve the receiving sensitivity. Since the second coil structure 300 is combined with the upper part 320 of the receiving coil, after the scanned object is positioned or located in the lower part 220 of the receiving coil, the upper part 320 of the receiving coil can be carried to move by moving the second coil structure 300, so that the upper part 320 of the receiving coil and the lower part 220 of the receiving coil form a complete receiving coil combination. Therefore, the magnetic resonance coil device is simple to operate, which can reduce the time and process of combining the upper part 320 of the receiving coil, the lower part 220 of the receiving coil and the transmitting coil 310, and is also conducive to reducing the size and weight of the magnetic resonance coil device.

[0116] In one embodiment, the upper portion 320 of the receiving coil includes an upper support structure and a second receiving coil, the upper support structure is located in the upper half of the accommodating cavity, and the upper support structure is provided with a window, the second receiving coil is located inside or on the surface of the upper support structure, and a plurality of second receiving coils form an array structure. The arrangement of the receiving coils needs to avoid the window position on the upper support structure. Optionally, the second receiving coils are evenly arranged on the surface of the upper support structure, so that the magnetic resonance signals emitted by the detection part of the scanned object can be more fully received. Since the first receiving coil and the second receiving coil are located in the upper and lower parts of the accommodating space, when the magnetic resonance coil device is detecting, the magnetic resonance signals of the face and the back can be received simultaneously.

[0117] The second coil structure 300 and the upper portion 320 of the receiving coil are arranged on completely different supporting structures, further increasing the distance between the two, and preventing the large amount of heat generated by the operation of the second coil structure 300 from affecting the receiving sensitivity of the upper portion 320 of the receiving coil. At the same time, the upper portion 320 of the receiving coil fits the human body surface better and has a higher sensitivity. Moreover, the window is arranged on the upper supporting structure, which can avoid the claustrophobic feeling in the eyes of the scanned object caused by the upper portion 320 of the receiving coil being close to the tissue.

[0118] See also Figures 11 to 15 , Fig.18In the second embodiment of the present invention, the magnetic resonance coil device is also described by taking the head coil as an example. The first coil structure 200 includes a receiving coil lower part 220, and the second coil structure 300 includes a second shell, a transmitting coil 310 and a receiving coil upper part 320. That is to say, the second coil structure 300 is a combined structure of the transmitting coil 310 and the receiving coil upper part 320. The transmitting coil 310 includes two coil units arranged opposite to each other, and the two coil units are arranged in a cylindrical shape, and one of the coil units is arranged in the inner layer, and the other coil unit is arranged in the outer layer, and the two coil units are driven synchronously during operation. The receiving coil upper part 320 is arranged in the inner layer coil unit. The RF receiving circuit and the driving circuit are arranged in the receiving coil lower part 220.

[0119] It is worth noting that the structure of the second embodiment is substantially the same as that of the first embodiment, except that the upper receiving coil portion 320 in the first coil structure 200 is combined with the transmitting coil 210 in the second coil structure 300 to form a combined structure. The structures and working principles of the transmitting coil, the upper receiving coil portion 320 and the lower receiving coil portion 220 in the second embodiment are substantially the same as those in the first embodiment, and are not described in detail herein.

[0120] In the third embodiment of the present invention, the magnetic resonance coil device may be a knee joint coil, an ankle coil or an abdominal coil, the first coil structure 200 includes a receiving coil upper portion 320, and the second coil structure 300 includes a transmitting coil. That is, compared with the first embodiment, the present embodiment omits the receiving coil upper portion 320. It is worth noting that the structure and working principle of the transmitting coil and the receiving coil 310 in the present embodiment are substantially the same as those in the first embodiment, and are not described one by one here.

[0121] In summary, the magnetic resonance coil device provided by the present invention is combined with the upper receiving coil part 320 by the transmitting coil 310, which is conducive to reducing the size and weight of the magnetic resonance coil device. Moreover, after the scanned object is placed or positioned on the lower receiving coil part 220, the upper receiving coil part 320 can be carried to move by moving the transmitting coil 310, so that the upper receiving coil part 320 and the lower receiving coil part 220 form a complete receiving coil combination, that is, the magnetic resonance coil device is easy to operate, and the time and process of combining the upper receiving coil part 320, the lower receiving coil part 220 and the transmitting coil part 310 can be reduced. Since the magnetic resonance coil device includes the upper receiving coil part 320 and the lower receiving coil part 220, the magnetic resonance coil device can simultaneously receive magnetic resonance signals of the face and the back, that is, it can receive magnetic resonance signals emitted by the scanned object in a more comprehensive manner from multiple directions.

[0122] In actual use, the magnetic resonance coil device of the present invention is installed on the examination bed 400 for easy use. Fig.19As shown, the magnetic resonance coil device is located at the end of the examination bed 400, and the examination bed 400 carries a carriage to perform scanning and imaging of the patient's head through the magnetic resonance coil device.

[0123] Moreover, all cables of the magnetic resonance coil device provided by the present invention can be placed under the receiving coil 220, which can improve the stability of the structure and reduce the number of coil components, thereby reducing the size and weight of the magnetic resonance coil device and increasing the service life of the magnetic resonance coil device.

[0124] At the same time, the magnetic resonance coil device provided by the present invention also includes a periscope and a locking structure 100, which can ensure the connectivity of the electrical components of the transmitting coil 310, the upper part 320 of the receiving coil and the lower part 220 of the receiving coil and the reliability of the scanning of the magnetic resonance coil device, while reducing the patient's claustrophobic feeling and meeting the requirements of visual stimulation.

[0125] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0126] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A locking structure, characterized in that: include: A locking assembly may be disposed on a first coil structure of a magnetic resonance coil device; the locking assembly comprises a locking shell, the locking shell being fixed to the first coil structure; as well as An adjustment component can be arranged on the second coil structure of the magnetic resonance coil device, and the adjustment component has a locking position and an unlocking position; the adjustment component includes a mounting shell and an adjustment screw arranged on the mounting shell; the mounting shell is fixed to the second coil structure, the adjustment screw can drive the mounting shell to move and rotate relative to the mounting shell, and the end of the adjustment screw can move into the locking component when the adjustment screw moves; The adjusting screw has a spiral groove, and the locking shell has a locking protrusion inside, and the locking protrusion is screwed and connected with the spiral groove to lock the adjusting screw; The adjusting component is in the locking position, the adjusting component abuts against the locking component and is locked by the locking component; The adjusting component is in an unlocking position, and the adjusting component is disengaged from the locking component, so that the second coil structure and the first coil structure can move relative to each other.

2. The locking structure according to claim 1, characterized in that: The adjusting assembly further comprises an adjusting knob. The end of the adjusting screw away from the locking assembly extends out of the mounting housing and is mounted with the adjusting knob, which is used to drive the adjusting screw to move and rotate.

3. The locking structure according to claim 1, characterized in that: The locking structure also includes a self-locking component, which is movably disposed on the mounting housing and sleeved on the adjusting screw. The self-locking component can lock the adjusting screw in the unlocking position and unlock the adjusting screw in the rotating position so that the adjusting screw can rotate.

4. The locking structure according to claim 3, characterized in that: The adjusting screw has a self-locking groove, and the self-locking component includes a self-locking sleeve, which is sleeved on the adjusting screw. The inner wall of the self-locking sleeve has a locking rib, and the locking rib can be moved into or out of the self-locking groove. The locking rib moves into the self-locking groove, and the locking rib limits the rotation of the adjusting screw.

5. A magnetic resonance coil device, characterized in that: include: The first coil structure; a second coil structure, capable of being combined with the first coil structure; as well as A locking structure, comprising a locking assembly and an adjusting assembly, wherein the locking assembly is arranged on the second coil structure of the magnetic resonance coil device, the locking assembly comprises a locking shell, and the locking shell is fixed to the second coil structure; the adjusting assembly is arranged on the first coil structure of the magnetic resonance coil device, and the adjusting assembly has a locking position and an unlocking position; the adjusting assembly comprises a mounting shell and an adjusting screw arranged on the mounting shell; the mounting shell is fixed to the first coil structure, the adjusting screw can drive the mounting shell to move and rotate relative to the mounting shell, and the end of the adjusting screw can move into the locking assembly when the adjusting screw moves; The adjusting screw has a spiral groove, and the locking shell has a locking protrusion inside, and the locking protrusion is screwed and connected with the spiral groove to lock the adjusting screw; When the adjusting component is in the locking position, the adjusting component abuts against the locking component and is locked by the locking component, so that the first coil structure is fixed relative to the second coil structure; when the adjusting component is in the unlocking position, the adjusting component is disengaged from the locking component, so that the first coil structure and the second coil structure can move relative to each other.

6. The magnetic resonance coil device according to claim 5, characterized in that: The second coil structure has an accommodating space that at least partially accommodates the first coil structure; The first coil structure includes an upper receiving coil part and a lower receiving coil part. The upper receiving coil part can be detachably arranged or fixedly arranged at the upper part of the accommodating space. The lower receiving coil part or all of the curved surface is configured to form a receiving groove.

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