Coil positioning mechanism for animal magnetic resonance scanning and magnetic resonance scanning equipment

Abstract

The utility model relates to a coil positioning mechanism for animal magnetic resonance scanning and magnetic resonance scanning equipment, the coil positioning mechanism comprises a bearing bottom plate, an adjusting assembly and a locking piece, the bearing bottom plate can be borne on a sickbed of a magnetic resonance scanner, the adjusting assembly comprises an arc-shaped plate, the arc-shaped plate is rotatably arranged on the upper portion of the bearing bottom plate, and the locking piece is arranged on the arc-shaped plate. A plurality of limiting holes which are formed in the arc direction of the arc-shaped plate at intervals are formed in the plate wall of the arc-shaped plate; the locking piece is connected to the bearing bottom plate, the locking piece can move in the direction close to the arc-shaped plate so as to be inserted into the limiting hole, the arc-shaped plate can be locked at different locking gears relative to the bearing bottom plate, and the arc-shaped plate moves in the arc direction so as to form different inclined positions or angles with the bearing bottom plate. By adopting the structure, the angle adjusting range of the arc-shaped plate is wider; and the structure is simple, machining is easy, and locking operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a coil positioning mechanism for animal magnetic resonance scanning and magnetic resonance scanning equipment. Background Art

[0002] With the development of technology, in animal scanning imaging equipment, the head of the animal is fixed by a coil positioning mechanism. In the coil positioning mechanism in the prior art, the fixing structure of the angle of the adjustment component relative to the supporting base is achieved by providing a locking member on the supporting base, and the locking member is movably provided on the supporting base. When the locking member moves relative to the supporting base, it can move in or out between the arc-shaped carrier and the supporting base. When the locking member moves between the arc-shaped carrier and the supporting base, the locking member can abut against the outer peripheral surface of the arc-shaped carrier, restricting the rotation of the arc-shaped carrier and realizing the locking and limiting of the arc-shaped carrier. With this angle fixing structure, the locking member abuts against the outer peripheral surface of the arc-shaped carrier, and due to the limitation of the curvature of the arc-shaped carrier and the moving distance of the locking member, the angle adjustment range of the arc-shaped carrier is small, thereby affecting the application range of the coil positioning mechanism. Utility Model Content

[0003] Based on this, it is necessary to provide a coil positioning mechanism and a magnetic resonance scanning device to address the technical problem in the prior art that the angle adjustment range of the coil positioning mechanism is small.

[0004] A coil positioning mechanism for animal magnetic resonance scanning, the coil positioning mechanism comprising:

[0005] A load-bearing base capable of being placed on the bed of an MRI scanner;

[0006] An adjustment assembly includes an arc-shaped plate rotatably disposed on the upper portion of the supporting base plate, wherein a plurality of limiting holes spaced along the arc direction of the arc-shaped plate are provided on the plate wall of the arc-shaped plate;

[0007] a locking member connected to the supporting base plate, wherein the locking member can be moved toward the arc-shaped plate to be inserted into the limiting hole, thereby locking the arc-shaped plate relative to the supporting base plate at different locking positions;

[0008] The arc-shaped plate moves along the arc direction to form different inclined positions or angles with the supporting base plate.

[0009] In one embodiment, the carrier base comprises:

[0010] board body;

[0011] The plate body is provided with two guide protrusions spaced apart from each other, each guide protrusion is provided with a guide groove, and the arc-shaped plate is slidably arranged in the guide grooves at both ends along the axial direction.

[0012] In one embodiment, the locking member is connected to the guide protrusion.

[0013] In one embodiment, the locking element comprises:

[0014] A locking screw is threadably connected to the guide protrusion, and an end of the locking screw facing away from the guide protrusion can be inserted into the limiting hole;

[0015] The locking knob is fixedly connected to the end of the locking screw away from the arc plate and is located on the side of the guide protrusion away from the arc plate.

[0016] In one embodiment, the coil positioning mechanism further comprises:

[0017] A plurality of strap fixing members are fixedly connected to the supporting base plate, and an avoidance hole is formed between the strap fixing members and the supporting base plate, and the avoidance hole is used for the strap to pass through.

[0018] In one embodiment, the strap fastener comprises:

[0019] Connecting part;

[0020] The fixing portion has two ends connected to the connecting portion respectively, and one end of the connecting portion facing away from the fixing portion is fixedly connected to the supporting base plate, and the fixing portion is spaced apart from the supporting base plate.

[0021] In one embodiment, the coil positioning mechanism further comprises:

[0022] a binding strap connected to the carrying base plate via the binding strap fixing member;

[0023] a chin rest connected to the strap, the chin rest being configured with a limiting groove for limiting the chin of the scanned object;

[0024] The length of the strap is adjustable to adjust the strength of the chin support in limiting the chin.

[0025] In one embodiment, the outer surface of the chin rest is provided with a perforation for the strap to pass through.

[0026] A magnetic resonance scanning device for animal imaging, comprising:

[0027] MRI scanner, including hospital bed;

[0028] A bearing base plate, supported on the hospital bed;

[0029] An adjustment assembly, comprising an arc-shaped plate, the arc-shaped plate being rotatably disposed on an upper portion of the supporting base plate, the arc-shaped plate forming an accommodating cavity;

[0030] a receiving coil, disposed in the accommodating cavity and detachably connected to the adjusting assembly;

[0031] The arc-shaped plate can be locked at different locking positions relative to the bearing base plate, so as to enable the receiving coil to form different tilting positions or angles relative to the bed.

[0032] In one embodiment, the arc-shaped plate is locked or snap-fitted to the supporting base plate.

[0033] Beneficial effects of the utility model:

[0034] The utility model provides a coil positioning mechanism, including a supporting base for supporting an adjustment assembly and connecting a locking member. A receiving coil is connected to a curved plate. The curved plate in the adjustment assembly is rotatably connected to the supporting base. The curved plate moves along an arc relative to the supporting base, allowing the curved plate and the supporting base to form different tilt positions or angles. The curved plate drives the receiving coil to rotate relative to the supporting base, thereby adjusting the angle of the receiving coil and adapting it to different scanning postures for subjects of different sizes. Multiple limiting holes are provided on the wall of the curved plate, spaced along the arc. Locking members connected to the supporting base are inserted into corresponding limiting holes to lock the angle of the curved plate relative to the supporting base. This structure, on the one hand, eliminates any requirements for the relative position of the curved plate; as long as the limiting holes on the curved plate correspond to the locking members, the angle of the curved plate can be locked, thereby extending the range of angle adjustment for the curved plate. On the other hand, the structure is simple, easy to manufacture, and convenient to lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the exploded structure of a nuclear magnetic resonance scanning device provided in one embodiment of the present utility model;

[0036] Figure 2 A schematic diagram of the exploded structure of a coil positioning mechanism provided in one embodiment of the present utility model;

[0037] Figure 3 This is a structural diagram of a coil positioning mechanism provided by an embodiment of the present invention installed on a hospital bed;

[0038] Figure 4A schematic structural diagram of a coil positioning mechanism provided by an embodiment of the present invention installed on a hospital bed from another perspective;

[0039] Figure 5 A schematic diagram of the structure of a coil positioning mechanism for a binding strap provided in one embodiment of the present invention;

[0040] Figure 6 A schematic structural diagram of fixing a scanned object to a coil positioning mechanism provided in one embodiment of the present invention.

[0041] Reference numerals:

[0042] Coil positioning mechanism 100; supporting base plate 110; plate body 111; guide protrusion 112; guide groove 1121; adjustment assembly 120; curved plate 121; limiting hole 1211; locking member 130; locking knob 131; strap fixing member 140; connecting portion 141; fixing portion 142; strap 150; chin rest 160; limiting groove 161; through hole 162; screw transmission structure 170; fixing assembly 180; receiving coil 200; hospital bed 300; scanning object 400. DETAILED DESCRIPTION

[0043] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] 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 an intermediate 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 an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0049] like Figure 1 As shown, an embodiment of the present invention provides a nuclear magnetic resonance (MRI) scanning device for animal imaging, comprising a bed 300, a receiving coil 200, and a coil positioning mechanism 100. The coil positioning mechanism 100 is connected to the bed 300, and the coil scanning mechanism is used to fix and position the receiving coil 200.

[0050] See Figures 1 to 6, an embodiment of the present invention provides a coil positioning mechanism 100 for animal magnetic resonance scanning, the coil positioning mechanism 100 includes a supporting base 110, an adjusting assembly 120 and a locking member 130, the adjusting assembly 120 includes an arc-shaped plate 121, the arc-shaped plate 121 is rotatably arranged on the upper part of the supporting base 110, and the wall plate of the arc-shaped plate 121 is provided with a plurality of limiting holes 1211 spaced apart along the arc direction of the arc-shaped plate; the locking member 130 is connected to the supporting base 110, and the locking member 130 can move in a direction close to the arc-shaped plate 121 to be inserted into the limiting hole 1211, so as to lock the arc-shaped plate 121 relative to the supporting base 110 at different locking positions, wherein the arc-shaped plate 121 moves along the arc direction to form different tilt positions or angles with the supporting base 110.

[0051] This technical solution provides a coil positioning mechanism 100. A supporting base plate 110 is used to support an adjustment assembly 120 and is connected to a locking member 130, etc. A receiving coil 200 is connected to a curved plate 121. The curved plate 121 in the adjustment assembly 120 is rotatably connected to the supporting base plate 110. The curved plate 121 moves along an arc relative to the supporting base plate 110 to form different tilt positions or angles with the supporting base plate 110. The curved plate 121 drives the receiving coil 200 to rotate relative to the supporting base plate 110, thereby adjusting the receiving coil 200 to different tilt positions or angles relative to the patient bed 300, thereby enabling the receiving coil 200 to adapt to different scanning postures of scanned subjects 400 of different body sizes. By providing a plurality of limiting holes 1211 spaced along the arc direction of the curved plate on the wall of the curved plate 121, and inserting the locking members 130 connected to the supporting base plate 110 into the corresponding limiting holes 1211, the angle of the curved plate 121 relative to the supporting base plate 110 is locked. With this structure, on the one hand, there is no requirement for the relative position of the curved plate 121; as long as the limiting holes 1211 on the curved plate 121 correspond to the locking members 130, the angle of the curved plate 121 can be locked, thereby extending the angle adjustment range of the curved plate 121. On the other hand, the structure is simple, easy to manufacture, and the locking operation is convenient.

[0052] It is understood that the coil positioning mechanism provided by the present invention is primarily used in magnetic resonance imaging equipment for scanning animals, and is used in conjunction with an imaging system to obtain images of the animal's head. The coil positioning mechanism 100 is used to mount the receiving coil 200 used to scan the animal's head and securely position the animal's head within the receiving coil 200, ensuring a relative fixation between the animal's head and the receiving coil 200. This ensures that the imaging system maintains the desired quality of the animal's head image.

[0053] Specifically, the supporting base 110 mainly serves to support various components located on the supporting base 110. The supporting base 110 is connected to the bed 300 via guide rails. The supporting base 110 can slide relative to the bed 300 to adjust the specific position of the supporting base 110 on the bed 300. Optionally, the supporting base 110 is flat.

[0054] The fixed assembly 180 is mounted on the curved plate 121 of the adjustment assembly 120 . A receiving coil 200 is removably mounted within the fixed assembly 180 . The type of receiving coil 200 is not limited, as long as it can be used in conjunction with the imaging body of the magnetic resonance imaging device to image the animal's head. For example, the receiving coil 200 can be a head coil comprising a rigid housing, a head coil comprising both a rigid housing and a flexible gasket, and so on.

[0055] Specifically, the fixing assembly 180 includes two coil retaining clamps positioned oppositely at opposite ends of the curved plate 121 along the axial direction. The two coil retaining clamps are movably mounted within the curved groove of the curved plate 121 via a lead screw drive mechanism 170. The two coil retaining clamps can be moved toward or away from each other to adjust the distance between them. When the two coil retaining clamps move toward each other, the clamping distance of the fixing assembly 180 decreases; when the two coil retaining clamps move away from each other, the clamping distance of the fixing assembly 180 increases. The receiving coil 200 is mounted between the two coil retaining clamps and is clamped by the coil retaining clamps. It will be appreciated that the distance between the two coil retaining clamps is determined by the size of the receiving coil 200, which in turn is determined by the size of the animal's head.

[0056] The adjustment component 120 can drive the fixing component 180 to rotate relative to the supporting base plate 110 to adjust the angle of the fixing component 180 so that the receiving coil 200 installed in the fixing component 180 is at a suitable angle to meet the adjustment adaptation of different animal heads of different animals, so that the animal head is located in the receiving coil 200 at an appropriate angle, ensuring that the relative position of the animal head and the receiving coil 200 is accurate.

[0057] When the coil positioning mechanism 100 is in use, the adjustment assembly 120 adjusts the angle of the fixing assembly 180 relative to the support base 110, and the lead screw drive structure 170 adjusts the clamping distance of the fixing assembly 180 to accommodate different animals and different animal heads. Subsequently, the receiving coil 200 is installed in the fixing assembly 180 and moved into the animal's head, and the imaging body cooperates to image the animal's head and obtain an image.

[0058] In the prior art, because the locking of the curved plate 121 by the locking member 130 is affected by the structure between the curved plate 121 and the supporting base plate 110, the locking range of the curved plate 121 by the locking member 130 is much smaller than the angular range of the curved plate 121 itself, resulting in a smaller angular adjustment range of the curved plate 121. In this embodiment, however, because the limiting hole 1211 is provided on the end surface of the curved plate 121, the limiting angle of the curved plate 121 is not affected by other structures, thereby making the adjustment angle of the curved plate 121 related to the structural angle of the curved plate 121 itself. For example, if the curved angle of the curved plate 121 itself is 135 degrees, then the angle adjustment range of the curved plate 121 can be between 0 and 135 degrees.

[0059] like Figure 2 As shown, in one embodiment, the plurality of limiting holes 1211 are located on the same arc line, and the curvature of the arc line formed by the plurality of limiting holes 1211 is consistent with the curvature of the arc plate 121 .

[0060] By arranging the limiting holes 1211 on the same arc line, and aligning the curvature of the arc line with the curvature of the curved plate 121, once the angle of the curved plate 121 is adjusted, the locking member 130 can be moved and inserted into the limiting hole 1211, thereby locking the curved plate 121. This arrangement ensures that the locking range of the curved plate 121 by the locking member 130 matches the curvature range of the curved plate 121, thereby maximizing the angle adjustment range of the curved plate 121. Preferably, limiting holes are provided at both ends of the curved plate along the axial direction, and locking members are provided on the sides of both ends of the curved plate.

[0061] like Figure 2 As shown, in one embodiment, the supporting base plate 110 includes a plate body 111 and a guide protrusion 112. Two spaced apart guide protrusions 112 are constructed on the plate body 111. Each guide protrusion 112 is constructed with a guide groove 1121. The arc-shaped plate 121 is slidably arranged in the guide groove 1121 at both ends along the axial direction.

[0062] By providing guide protrusions 112 on the plate body 111 of the supporting base plate 110 and guide grooves 1121 on the guide protrusions 112, the ends of the curved plate 121 are slidably disposed within the guide grooves 1121 to enable the curved plate 121 to rotate relative to the supporting base plate 110. The guide grooves 1121 guide and limit the rotation of the supporting base plate 110. The guide grooves 1121 are provided on the guide protrusions 112 to provide space for the curved plate 121 to move, thereby preventing interference between the curved plate 121 and the supporting base plate 110.

[0063] like Figure 2As shown, specifically, the guide groove 1121 is an arc-shaped groove that is consistent with the curvature of the arc-shaped plate 121, so that the arc-shaped plate 121 can slide smoothly in the arc-shaped groove. The guide protrusion 112 protrudes upward along the supporting base plate 110. The top surface of the guide protrusion 112 can be set to be an arc surface that is consistent with the curvature of the arc-shaped plate 121, and of course it can also be an inclined surface.

[0064] Furthermore, a guide rail can be provided in the guide groove 1121, and an arc-shaped guide slider can be fixedly connected to the arc plate 121, and the guide rail is installed in the guide slider. Furthermore, the guide slider is located on the lower surface of the end of the arc plate 121, and the guide rail is provided on the groove side facing the plate body 111 in the guide groove 1121, so as to facilitate the cooperation between the guide slider and the guide rail. It should be understood that guide sliders are provided at both ends of the arc plate 121, and guide rails are provided in the guide grooves 1121 of the two guide protrusions 112. In this way, the motion trajectory of the arc plate 121 can be further guaranteed, so that the motion trajectories of the two ends of the arc plate 121 are consistent, thereby ensuring the accuracy of the angle adjustment of the arc plate 121.

[0065] like Figure 4 As shown, in one embodiment, the locking member 130 is connected to the guide protrusion 112. The locking member 130 is arranged on the guide protrusion 112, which can reduce the number of parts on the one hand and facilitate connection on the other hand.

[0066] Specifically, the locking member 130 includes a locking screw, which is threadably connected to the guide protrusion 112, and the end of the locking screw away from the guide protrusion 112 can be inserted into the limiting hole 1211; the locking knob 131 is fixedly connected to the end of the locking screw away from the arc plate 121, and is located on the side of the guide protrusion 112 away from the arc plate 121.

[0067] The locking member 130 is configured in the form of a locking screw, and the locking screw is threadedly connected to the guide protrusion 112. By rotating the locking screw, the locking screw can be moved relative to the guide protrusion 112, thereby allowing the locking screw to be inserted into the limiting hole 1211 to limit the position of the curved plate 121. In this embodiment, the limiting hole 1211 can be configured as a threaded hole that matches the locking screw, thereby further improving the reliability of the locking member 130 locking the curved plate 121. By providing a locking knob 131 at one end of the locking screw that faces away from the curved plate 121, and by positioning the locking knob 131 on the side of the guide protrusion 112 that faces away from the curved plate 121, the operator can easily rotate the locking screw through the locking knob 131 to lock and unlock the curved plate 121.

[0068] like Figure 5 and Figure 6As shown, in one embodiment, the coil positioning mechanism 100 further includes a strap fixing member 140, each of which is fixedly connected to the supporting base plate 110. A clearance hole is formed between the strap fixing member 140 and the supporting base plate 110, through which the strap 150 passes. Specifically, the strap fixing member 140 includes a connecting portion 141 and a fixing portion 142. Both ends of the fixing portion 142 are respectively connected to the connecting portion 141. The end of the connecting portion 141 facing away from the fixing portion 142 is fixedly connected to the supporting base plate 110, and the fixing portion 142 is spaced apart from the supporting base plate 110.

[0069] By providing a strap fixture 140 on the support base 110, the strap 150 can be secured via the strap fixture 140, thereby securing the animal's head. Multiple strap fixtures 140 are provided on the support base 110, allowing selection of strap fixtures 140 with appropriate positions based on the head size of the animal, thereby enabling the coil positioning mechanism 100 to secure animals of different sizes and types. Specifically, two side-by-side strap fixtures 140 are provided on either side of the two guide protrusions 112, with the extension direction of the two strap fixtures 140 aligning with the length of the guide protrusions 112. A strap fixture 140 is provided adjacent to the end of the guide protrusion 112, extending along the axial direction of the curved plate 121.

[0070] The two connecting portions 141 and the fixing portion 142 together define a U-shaped strap fixing member 140 . The connecting portion 141 is used to connect the fixing portion 142 to the supporting base 110 , and the fixing portion 142 is used to connect to the strap 150 .

[0071] like Figure 5 and Figure 6 As shown, in one embodiment, the coil positioning mechanism 100 further includes a strap 150 and a chin rest 160. The strap 150 is connected to the support base 110 via a strap fixing member 140. The chin rest 160 is connected to the strap 150 and is configured with a retaining groove 161 for retaining the chin of the scanned subject 400. The length of the strap 150 is adjustable to adjust the force with which the chin rest 160 retains the chin. The outer surface of the chin rest 160 is provided with a through-hole 162 for the strap 150 to pass through.

[0072] In the above structure, the chin rest 160 is connected to the strap fixing member 140 via the strap 150, thereby securing the chin of the scanned subject 400 and, in turn, the head of the scanned subject 400. The strap 150 is designed to be adjustable in length to facilitate adjustment based on the head size of different animals, thereby securing the heads of animals of different sizes.

[0073] The retaining groove 161 of the chin rest 160 is used to accommodate the chin rest 160, thereby securing the chin. A perforation 162 is provided on the outer surface of the chin rest 160 to facilitate connection between the chin rest 160 and the strap 150. Specifically, two spaced ribs are provided on the outer surface of the chin rest 160, with the ribs spaced apart from the outer surface of the chin rest 160 to form the perforation 162.

[0074] When in use, the strap 150 is passed through the through-hole 162 , and the two ends of the strap 150 are connected to the strap fixing members 140 beside the two guide protrusions 112 . The chin support 160 is used to support the animal's chin, and the length of the strap 150 is adjusted to fix the animal's chin.

[0075] like Figure 1 As shown, an embodiment of the present invention further provides a magnetic resonance scanning device for animal imaging, the magnetic resonance scanning device including a magnetic resonance scanner, a supporting base, an adjustment assembly and a receiving coil, the magnetic resonance scanner including a bed 300; the supporting base 110 is supported on the bed 300; the adjustment assembly 120 includes a curved plate 121, which is rotatably arranged on the upper part of the supporting base 110, and the curved plate 121 forms an accommodating cavity; the receiving coil 200 is arranged in the accommodating cavity and is detachably connected to the adjustment assembly 120; the curved plate 121 can be locked in different locking positions relative to the supporting base 110 to achieve different tilt positions or angles of the receiving coil 200 relative to the bed.

[0076] The bed 300 is used to support or place the supporting base plate 110. The supporting base plate 110 can move relative to the bed 300, thereby driving the adjustment assembly and the receiving coil 200 to move relative to the bed. By rotatably positioning the curved plate 121 on the supporting base plate 110 and providing a receiving cavity on the curved plate 121, the receiving coil 200 is removably positioned within the receiving cavity via the adjustment assembly 120 to enable imaging of the animal's head. By locking the curved plate 121 relative to the supporting base plate 110 in different locking positions, the receiving coil 200 can be tilted or angled relative to the bed, thereby adapting to different scanning postures for scanned subjects of different body sizes.

[0077] In one embodiment, the curved plate 121 and the supporting base plate 110 are connected by a locking connection or a snap-fit ​​connection. Specifically, the curved plate 121 and the supporting base plate 110 can be locked to each other by plugging the limiting hole 1211 and the locking member 130 as described above, or they can be locked to each other by a snap-fit ​​connection. Of course, it is also possible to provide a tooth groove on the outer circumference of the curved plate 121 and a limiting tooth on the supporting base plate 110, and to limit the curved plate by inserting the limiting tooth into the limiting groove. Other feasible locking structures can also be used to lock the curved plate 121 and the supporting base plate 110.

[0078] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0079] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A coil positioning mechanism for animal magnetic resonance scanning, characterized in that: The coil positioning mechanism comprises: A load-bearing base capable of being placed on the bed of an MRI scanner; An adjustment assembly includes an arc-shaped plate rotatably disposed on the upper portion of the supporting base plate, wherein a plurality of limiting holes spaced along the arc direction of the arc-shaped plate are provided on the plate wall of the arc-shaped plate; a locking member connected to the supporting base plate, wherein the locking member can be moved toward the arc-shaped plate to be inserted into the limiting hole, thereby locking the arc-shaped plate relative to the supporting base plate at different locking positions; The arc-shaped plate moves along the arc direction to form different inclined positions or angles with the supporting base plate.

2. The coil positioning mechanism for animal magnetic resonance scanning according to claim 1, characterized in that: The bearing base plate comprises: board body; The plate body is provided with two guide protrusions spaced apart from each other, each guide protrusion is provided with a guide groove, and the arc-shaped plate is slidably arranged in the guide grooves at both ends along the axial direction.

3. The coil positioning mechanism for animal magnetic resonance scanning according to claim 2, characterized in that: The locking piece is connected to the guide protrusion.

4. The coil positioning mechanism according to claim 3, characterized in that: The locking member comprises: A locking screw is threadably connected to the guide protrusion, and an end of the locking screw facing away from the guide protrusion can be inserted into the limiting hole; The locking knob is fixedly connected to the end of the locking screw away from the arc plate and is located on the side of the guide protrusion away from the arc plate.

5. The coil positioning mechanism for animal magnetic resonance scanning according to claim 1, characterized in that: The coil positioning mechanism also includes: A plurality of strap fixing members are fixedly connected to the supporting base plate, and an avoidance hole is formed between the strap fixing members and the supporting base plate, and the avoidance hole is used for the strap to pass through.

6. The coil positioning mechanism for animal magnetic resonance scanning according to claim 5, characterized in that: The strap fixing member comprises: Connecting part; The fixing portion has two ends connected to the connecting portion respectively, and one end of the connecting portion facing away from the fixing portion is fixedly connected to the supporting base plate, and the fixing portion is spaced apart from the supporting base plate.

7. The coil positioning mechanism for animal magnetic resonance scanning according to claim 5, characterized in that: The coil positioning mechanism also includes: a binding strap connected to the carrying base plate via the binding strap fixing member; a chin rest connected to the strap, the chin rest being configured with a limiting groove for limiting the chin of the scanned object; The length of the strap is adjustable to adjust the strength of the chin support in limiting the chin.

8. The coil positioning mechanism for animal magnetic resonance scanning according to claim 7, characterized in that: The outer surface of the chin rest is provided with a perforation, and the perforation is used for the strap to pass through.

9. A magnetic resonance scanning device for animal imaging, characterized in that: include: MRI scanner, including hospital bed; A bearing base plate, supported on the hospital bed; An adjustment assembly, comprising an arc-shaped plate, the arc-shaped plate being rotatably disposed on an upper portion of the supporting base plate, the arc-shaped plate forming an accommodating cavity; a receiving coil, disposed in the accommodating cavity and detachably connected to the adjusting assembly; The arc-shaped plate can be locked at different locking positions relative to the bearing base plate, so as to enable the receiving coil to form different tilting positions or angles relative to the bed.

10. The magnetic resonance scanning device for animal imaging according to claim 9, characterized in that: The arc-shaped plate is locked or snap-fitted to the supporting base plate.

Images