Positioning and adjusting tool of magnetic resonance die body and magnetic resonance equipment

Abstract

The utility model relates to a positioning and adjusting tool of a magnetic resonance die body and magnetic resonance equipment. The tool comprises an adjusting block, a base, an adjusting assembly and a fastener. The adjusting block is used for supporting the die body; the base is used for supporting the adjusting block; the adjusting assembly comprises a deploying part and two adjusting parts, the two adjusting parts penetrate through the base and are connected with the adjusting block, one of the two adjusting parts is used for driving the adjusting block to move in the first direction, the other of the two adjusting parts is used for driving the adjusting block to move in the second direction, and the deploying part is connected with the base; the allocation part is used for driving the base to ascend and descend in the third direction, and every two of the first direction, the second direction and the third direction are perpendicular; the fastener is arranged on the base in a penetrating mode, and the fastener is configured to be capable of moving relative to the base in the extending direction of the fastener so as to abut against the adjusting block. The adjusting block is driven to move through the adjusting piece and the allocation piece, so that the position of the adjusting block is adjusted in space, and the position of the die body on the adjusting block is adjusted in space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of magnetic resonance, in particular to a positioning and adjusting tool for a magnetic resonance phantom and a magnetic resonance device. BACKGROUND

[0002] Before a superconducting magnetic resonance system is put into normal use, self-test of scanning performance is needed, especially in some key use scenarios, the image requirement for the superconducting magnetic resonance system is high, and the accuracy requirement for positioning a laser lamp of the superconducting magnetic resonance system is also high, so when the superconducting magnetic resonance system is self-tested, a phantom with a relatively accurate position is needed for image evaluation. However, the existing phantom position adjusting tool has low adjusting accuracy, which affects the accuracy of the self-test scanning result of the magnetic resonance system. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a positioning and adjusting tool for a magnetic resonance phantom in view of the technical problem that the existing phantom position adjusting tool has a small adjusting range and low adjusting accuracy, which affects the accuracy of the self-test scanning result of the magnetic resonance system.

[0004] A positioning and adjusting tool for a magnetic resonance phantom comprises:

[0005] An adjusting block for supporting a phantom;

[0006] A base for supporting the adjusting block;

[0007] An adjusting assembly comprising an adjusting accessory and two adjusting accessories, the two adjusting accessories are arranged in the base and connected with the adjusting block, one of the two adjusting accessories is used to drive the adjusting block to move in a first direction, the other of the two adjusting accessories is used to drive the adjusting block to move in a second direction, the adjusting accessory is connected with the base, and the adjusting accessory is used to drive the base to move up and down in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; and

[0008] A fastener arranged in the base, the fastener is configured to be movable relative to the base along the extension direction of the fastener to abut against the adjusting block to limit the position of the adjusting block relative to the base.

[0009] In one embodiment, the base comprises a base plate and a clamping block, the base plate is used to support the adjusting block, the clamping block is protruded from the side of the base plate facing the adjusting block, a fitting groove is formed between the clamping block and the base plate, the adjusting block is partially arranged in the fitting groove, the fastener is arranged in the clamping block, and part of the structure of the fastener extends into the fitting groove and is used to abut against the adjusting block.

[0010] In one of the embodiments, the base is provided with a matching hole, and the adjusting member is arranged in the corresponding matching hole.

[0011] The adjusting member for driving the adjusting block to move in the first direction has a moving clearance with the hole wall of the corresponding matching hole in the second direction.

[0012] The adjusting member for driving the adjusting block to move in the second direction has a moving clearance with the hole wall of the corresponding matching hole in the first direction.

[0013] In one of the embodiments, the base is provided with a connecting cavity communicating with the matching hole, the adjusting member comprises an adjusting rod and a positioning block, the adjusting rod is arranged in the matching hole and is threadedly connected with the adjusting block, the positioning block is connected with the adjusting rod and is arranged in the connecting cavity, and the positioning block abuts against the cavity wall of the connecting cavity to limit the movement of the corresponding adjusting rod relative to the base along the extension direction of the adjusting rod.

[0014] In one of the embodiments, the base is provided with a sliding groove, and the positioning and adjusting tool for the magnetic resonance phantom further comprises a sliding block, the sliding block is in concave-convex cooperation with the sliding groove and is connected with the adjusting block, and the sliding block can move relative to the sliding groove along the extension direction of the sliding groove, wherein the extension direction of the sliding groove is parallel to the first direction or the second direction.

[0015] In one of the embodiments, the adjusting member is threadedly connected with the base, and the adjusting assembly further comprises a fixing block, the fixing block is threadedly connected with the adjusting member and is used for abutting against the side of the base facing the adjusting block.

[0016] In one of the embodiments, the positioning and adjusting tool for the magnetic resonance phantom further comprises a first level meter installed on the base, the first level meter extends along the first direction to detect the horizontal state of the base in the first direction, and / or a second level meter installed on the base, the second level meter extends along the second direction to detect the horizontal state of the base in the second direction.

[0017] In one of the embodiments, the positioning and adjusting tool for the magnetic resonance phantom further comprises a limiting assembly, the limiting assembly comprises a limiting block and a connecting member, the limiting block is provided with a strip-shaped hole, the connecting member is connected with the base and is arranged in the strip-shaped hole to fix the limiting block on the base, and the limiting block can move relative to the base along the extension direction of the strip-shaped hole to make the limiting block partially extend out of the base to abut against the coil.

[0018] In one of the embodiments, the adjusting block is provided with a first scale line extending along the first direction, the base is provided with a first reference, the first reference abuts against the first scale line, and the size of the adjusting block adjusted relative to the base in the first direction is determined by the scale of the first scale line pointed by the first reference; and / or,

[0019] The adjusting block is provided with a second scale line extending along the second direction, the base is provided with a second reference, the second reference abuts against the second scale line, and the size of the adjusting block adjusted relative to the base in the second direction is determined by the scale of the second scale line pointed by the second reference; and / or,

[0020] The positioning and adjusting tool for the magnetic resonance phantom further comprises a positioning ruler provided with a third scale line extending along the third direction, the positioning ruler is arranged in the base along the third direction, the base is provided with a third reference, the third reference abuts against the third scale line, and the size of the adjusting block adjusted relative to the base in the third direction is determined by the scale of the third scale line pointed by the third reference.

[0021] The present application also provides a magnetic resonance device capable of solving at least one of the above technical problems.

[0022] A magnetic resonance device comprises the positioning and adjusting tool for the magnetic resonance phantom.

[0023] Beneficial effects:

[0024] The positioning and adjusting tool for the magnetic resonance phantom provided by the embodiments of the present application comprises an adjusting block, a base, an adjusting assembly and a fastener; the adjusting block is used for supporting a phantom; the base is used for supporting the adjusting block; the adjusting assembly comprises a matching part and two adjusting parts, the two adjusting parts are arranged in the base and connected with the adjusting block, one of the two adjusting parts is used for driving the adjusting block to move along a first direction, the other of the two adjusting parts is used for driving the adjusting block to move along a second direction, the matching part is connected with the base, and the matching part is used for driving the base to ascend and descend along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; the fastener is arranged in the base, and the fastener is configured to be movable relative to the base along the extending direction of the fastener to abut against the adjusting block so as to limit the position of the adjusting block relative to the base. In the present application, the adjusting block is driven to move along the first direction or the second direction by the adjusting parts, the adjusting block is driven to ascend and descend along the third direction by the matching part, so as to realize the position adjustment of the adjusting block in space, thereby realizing the position adjustment of the phantom on the adjusting block in space, and the fastener is arranged in the base and movable relative to the base along the extending direction of the fastener to abut against the adjusting block, thereby being capable of limiting the position of the adjusting block relative to the base, so that the adjusting block is stably placed at the current position of the base, thereby improving the position adjustment precision of the phantom on the adjusting block.

[0025] The application also provides a magnetic resonance device comprising the positioning and adjusting tool for a magnetic resonance phantom as described above. The magnetic resonance device can achieve at least one technical effect as described above. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The schematic view of the positioning and adjusting tool for a magnetic resonance phantom provided by an embodiment of the application supports the phantom.

[0027] Figure 2 The schematic view of the positioning and adjusting tool for a magnetic resonance phantom provided by an embodiment of the application removes the adjusting block.

[0028] Figure 3 The partial schematic view of the positioning and adjusting tool for a magnetic resonance phantom provided by an embodiment of the application.

[0029] Figure 4 The schematic view of the magnetic resonance device provided by an embodiment of the application.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 10-positioning and adjusting tool for a magnetic resonance phantom; 100-adjusting block; 200-base; 210-clamping block; 211-matching groove; 220-stop block; 221-recess; 230-matching block; 240-supporting block; 250-connecting cavity; 251-first connecting cavity; 252-second connecting cavity; 260-sliding slot; 270-sliding block; 280-base plate; 281-groove; 290-matching hole; 300-adjusting assembly; 310-adjusting piece; 311-first adjusting piece; 312-second adjusting piece; 313-positioning block; 314-adjusting rod; 320-fixing block; 330-adjusting piece; 410-fastener; 420-first level meter; 430-second level meter; 440-first scale line; 450-second scale line; 460-third scale line; 470-ruler; 480-positioning ruler; 500-limiting assembly; 510-limiting block; 520-strip-shaped hole; 530-connecting piece; 20-phantom; 30-bed; 40-coil; 50-magnet system. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the application more apparent, the specific embodiments of the application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to fully understand the application. However, the application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the application, so the application is not limited to the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0035] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0037] It is to be understood that when an element as a preamble is referred to as being "on" or "connected" to another element, it can be directly on or connected to the other element or intervening elements can also be present. In contrast, when an element as a preamble is referred to as being "connected" to another element, it can be directly on or connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar terms as used herein are used for the purpose of illustration only and are not intended to be limiting.

[0038] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 FIG. 1 is a schematic view of a magnetic resonance phantom positioning and adjusting tool supporting a phantom according to an embodiment of the present application. Figure 2 FIG. 2 is a schematic view of a magnetic resonance phantom positioning and adjusting tool without adjusting blocks according to an embodiment of the present application. Figure 3 FIG. 3 is a partial schematic view of a magnetic resonance phantom positioning and adjusting tool according to an embodiment of the present application. Figure 4 FIG. 4 is a schematic view of a magnetic resonance apparatus according to an embodiment of the present application. The magnetic resonance phantom positioning and adjusting tool 10 according to an embodiment of the present application includes an adjusting block 100, a base 200, adjusting members 310, an adjusting member 330, and a fastener 410. The adjusting block 100 is configured to support a phantom 20. The base 200 is configured to support the adjusting block 100. The two adjusting members 310 are disposed in the base 200 and connected to the adjusting block 100. One of the two adjusting members 310 is configured to drive the adjusting block 100 to move in a first direction, and the other of the two adjusting members 310 is configured to drive the adjusting block 100 to move in a second direction. The adjusting member 330 is connected to the base 200 and configured to drive the base 200 to move in a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The fastener 410 is disposed in the base 200 and configured to move in a direction of extension of the fastener 410 relative to the base 200 to abut against the adjusting block 100 to limit a position of the adjusting block 100 relative to the base 200.

[0039] Specifically, in the present application, the adjusting piece 310 drives the adjusting block 100 to move in the first direction and in the second direction, and the adjusting piece 330 drives the adjusting block 100 to ascend and descend in the third direction, so as to realize the position adjustment of the adjusting block 100 in space, thereby realizing the position adjustment of the phantom 20 on the adjusting block 100 in space, and the fastener 410 is arranged through the base 200 and can move in the extending direction of the fastener 410 relative to the base 200 to abut against the adjusting block 100, so as to limit the position of the adjusting block 100 relative to the base 200, so that the adjusting block 100 is stably placed in the current position of the base 200, thereby improving the position adjustment accuracy of the phantom 20 on the adjusting block 100. Further, when the magnetic resonance system is self-tested, the accuracy of the scanning self-test result can be improved.

[0040] It should be noted that the fastener 410 has an unlocked state and a locked state, and in the initial state, the fastener 410 is in the unlocked state, so that the movement of the adjusting block 100 in the first direction and the second direction will not cause interference, and when the positions of the adjusting block 100 in the first direction and the second direction are determined, the fastener 410 is adjusted, so that the fastener 410 is switched from the unlocked state to the locked state, thereby stably limiting the position of the adjusting block 100 in the direction perpendicular to the third direction.

[0041] It should be noted that, referring to Figure 4 , the magnetic resonance system self-test process is as follows: first, the coil 40 is installed at a preset position on the surface of the bed 30, then the magnetic resonance phantom positioning and adjusting tool 10 is placed on the coil 40, then the phantom 20 is placed on the adjusting block 100 of the magnetic resonance phantom positioning and adjusting tool 10, and finally the magnetic resonance system is started to perform scanning self-test, and the offset of the phantom 20 is roughly calculated through the scanning image, and the magnetic resonance phantom positioning and adjusting tool 10 is adjusted according to the offset, so as to ensure that the phantom 20 is in the target position before performing the self-test scanning, and the self-test scanning result is used for calibration of the magnetic resonance system.

[0042] It should be noted that, referring to Figure 1 , the first direction is defined as XX', the second direction is defined as YY', and the third direction is defined as ZZ', and the following is described in terms of the first direction, the second direction and the third direction. In the drawings, Figure 1 , the first direction is the width direction of the adjusting block 100, the second direction is the length direction of the adjusting block 100, and the third direction is the thickness direction of the adjusting block 100. In other embodiments, the first direction can also be the length direction of the adjusting block 100, and the second direction can be the width direction of the adjusting block 100. The present application is described by taking the first direction as the width direction of the adjusting block 100 and the second direction as the length direction of the adjusting block 100 as an example.

[0043] Referring to Figure 1 and Figure 2In one of the embodiments, the base 200 comprises a base plate 280 for supporting the adjustment block 100 and a clamping block 210 protruding from the side of the base 200 facing the adjustment block 100, and a fitting groove 211 is formed between the clamping block 210 and the base plate 280, and the adjustment block 100 is partially accommodated in the fitting groove 211, and the fastener 410 is threaded through the clamping block 210, and part of the structure of the fastener 410 extends into the fitting groove 211 and is used to abut against the adjustment block 100.

[0044] Specifically, the adjustment block 100 is placed above the base plate 280, and the clamping block 210 is connected with the base plate 280. When the positions of the adjustment block 100 in the first direction and the second direction are determined, the fastener 410 is adjusted so that the fastener 410 is switched from the unlocked state to the locked state to move relative to the clamping block 210 along the direction of the fastener 410 to abut against the adjustment block 100, so that the fastener 410 cooperates with the base 200 to clamp the adjustment block 100 to stabilize the movement of the adjustment block 100 relative to the base 200. Preferably, the fastener 410 extends in the third direction.

[0045] Specifically, the fastener 410 is in the unlocked state when the fastener 410 does not abut against the adjustment block 100, and the fastener 410 is in the locked state when the fastener 410 abuts against the adjustment block 100.

[0046] Further, the fastener 410 is threadedly connected with the clamping block 210, and the fastener 410 is configured to be operable to rotate around the axis of the fastener 410 to move relative to the clamping block 210, so that the fastener 410 can extend into the fitting groove 211 to abut against the adjustment block 100. Preferably, the fastener 410 is a screw.

[0047] Further, the number of the fastener 410 is one, and the fastener 410 is arranged at a position corresponding to the central region of the phantom 20.

[0048] Referring to Figure 1 and Figure 2 In one of the embodiments, the adjustment block 100 and the base 200 are both made of non-metallic materials, so as to improve the magnetic compatibility of the positioning and adjusting tool 10 for the magnetic resonance phantom, and improve the magnetic resonance imaging.

[0049] Referring to Figure 1 and Figure 2 In one of the embodiments, the base 200 is provided with fitting holes 290, and the adjustment member 310 is threaded through the corresponding fitting holes 290; the adjustment member 310 for driving the adjustment block 100 to move in the first direction has a movement gap with the hole wall of the corresponding fitting hole 290 in the second direction; and the adjustment member 310 for driving the adjustment block 100 to move in the second direction has a movement gap with the hole wall of the corresponding fitting hole 290 in the first direction.

[0050] For the convenience of description, define two adjusting members 310 as a first adjusting member 311 and a second adjusting member 312 respectively, the first adjusting member 311 is used to drive the adjusting block 100 to move along the first direction, and the second adjusting member 312 is used to drive the adjusting block 100 to move along the second direction.

[0051] Specifically, the first adjusting member 311 has a movable gap with the hole wall of the corresponding matching hole 290 in the second direction, so that the first adjusting member 311 can move along the second direction relative to the base 200, so that when the second adjusting member 312 drives the adjusting block 100 to move along the second direction, the adjusting block 100 can drive the first adjusting member 311 to move along the second direction relative to the base 200 synchronously, so that the first adjusting member 311 will not interfere with the movement of the adjusting block 100 along the second direction, and the reliability of the position adjustment of the positioning and adjusting tool 10 of the magnetic resonance phantom is improved.

[0052] The second adjusting member 312 has a movable gap with the hole wall of the corresponding matching hole 290 in the first direction, so that the second adjusting member 312 can move along the first direction relative to the base 200, so that when the first adjusting member 311 drives the adjusting block 100 to move along the first direction, the adjusting block 100 can drive the second adjusting member 312 to move along the first direction relative to the base 200 synchronously, so that the second adjusting member 312 will not interfere with the movement of the adjusting block 100 along the first direction, and the reliability of the position adjustment of the positioning and adjusting tool 10 of the magnetic resonance phantom is improved.

[0053] Through the above analysis, it can be seen that in the present application, only by setting the base 200, the first adjusting member 311 and the second adjusting member 312, the position adjustment of the adjusting block 100 in the plane is realized, thereby simplifying the structure, and the positioning and adjusting tool 10 of the magnetic resonance phantom is miniaturized and lightened.

[0054] Further, the clamping block 210 is arranged on one side of the adjusting block 100 in the second direction, the second adjusting member 312 is arranged in the clamping block 210 and extends into the matching groove 211 and is threadedly connected with the adjusting block 100, and the second adjusting member 312 can rotate relative to the clamping block 210 in the second direction and move along the first direction. Preferably, the second adjusting member 312 is arranged at a position corresponding to the central region of the phantom 20.

[0055] Referring to Figure 1 and Figure 2 In one embodiment, the base 200 further comprises a stop block 220, the stop block 220 is connected to the base plate 280 and arranged on one side of the adjusting block 100 in the first direction, and the matching hole 290 is arranged in the stop block 220.

[0056] Further, the base plate 280 is further provided with a cooperation block 230 on the side of the adjusting block 100, the cooperation block 230 is arranged on the side of the adjusting block 100 away from the stop block 220, so as to limit the adjusting block 100 from being pulled out relative to the first adjusting member 311, thereby improving the reliability of the positioning and adjusting tool 10 of the magnetic resonance phantom.

[0057] Further, the stop block 220 and the cooperation block 230 are both inserted into the cooperation groove 211 on the end of the clamping block 210, so as to support the clamping block 210 and improve the stability of the connection between the clamping block 210 and the base 200. The stop block 220 and the cooperation block 230 are both provided with recesses 221, thereby facilitating the manual carrying of the tool. Preferably, the recess 221 is a through hole.

[0058] Referring to Figure 1 and Figure 2 In one of the embodiments, the base 200 is provided with a connecting cavity 250 in communication with the cooperation hole 290, the adjusting member 310 includes an adjusting rod 314 and a positioning block 313, the adjusting rod 314 is arranged in the cooperation hole 290 and is threadedly connected with the adjusting block 100, the positioning block 313 is connected with the adjusting rod 314 and is arranged in the connecting cavity 250, and the positioning block 313 abuts against the cavity wall of the connecting cavity 250, so as to limit the corresponding adjusting rod 314 from moving relative to the base 200 along the extending direction of the adjusting rod 314. In order to facilitate the description, it is defined that the first adjusting member 311 includes a first adjusting rod and a first positioning block, the connecting cavity 250 matched with the first positioning block is a first connecting cavity 251, the second adjusting member 312 includes a second adjusting rod and a second positioning block, and the connecting cavity 250 matched with the second positioning block is a second connecting cavity 252.

[0059] Specifically, the first adjusting rod has a movement gap with the hole wall of the corresponding cooperation hole 290 in the first direction, the first connecting cavity 251 is at least partially arranged on the stop block 220, and the first positioning block abuts against the two side walls of the first connecting cavity 251 in the first direction, so as to limit the first adjusting rod from moving relative to the stop block 220 along the first direction, thereby stably connecting the first adjusting member 311 with the stop block 220 to rotate around the first direction. The first positioning block and the first adjusting rod both have gaps with the two side walls of the first connecting cavity 251 in the second direction, thereby enabling the first adjusting member 311 to move relative to the stop block 220 along the second direction, and enabling the first connecting cavity 251 to guide the movement of the first adjusting member 311 relative to the stop block 220 along the second direction, thereby improving the positioning and adjusting accuracy in the first direction.

[0060] The second adjusting rod has a clearance with the hole wall of the corresponding matching hole 290 in the second direction, the second connecting cavity 252 is at least partially arranged on the clamping block 210, and the second positioning block abuts against the two side walls of the second connecting cavity 252 in the second direction, so as to limit the movement of the second adjusting rod relative to the stop block 220 along the second direction, so that the second adjusting part 312 is stably connected with the stop block 220 to rotate around the second direction. The second positioning block and the second adjusting rod have clearances with the two side walls of the second connecting cavity 252 in the second direction, so that the second adjusting part 312 can move relative to the stop block 220 along the first direction, and the second connecting cavity 252 can guide the movement of the second adjusting part 312 relative to the stop block 220 along the first direction, thereby improving the position adjustment accuracy in the second direction. Preferably, the fixing block 320 is annular and is sleeved on the adjusting rod 314.

[0061] Further, the first connecting cavity 251 is provided with an opening on the side away from the base plate 280, so as to facilitate the first positioning block to extend into the first connecting cavity 251. The clamping block 210 and the base plate 280 are respectively provided with a first limiting groove and a second limiting groove, and the first limiting groove and the second limiting groove surround to form the second connecting cavity 252, so as to facilitate the second adjusting part 312 to be positioned on the base plate 280 first, and then when the clamping block 210 is fixed on the base plate 280, the second limiting groove is aligned with the first limiting groove, so as to limit the second fixing block 320 in the second connecting cavity 252.

[0062] Referring to Figure 1 and Figure 2 In one of the embodiments, the base 200 is provided with a sliding groove 260, and the positioning and adjusting tool 10 of the magnetic resonance phantom further comprises a sliding block 270, the sliding block 270 is matched with the sliding groove 260, is connected with the adjusting block 100, and can move along the extension direction of the sliding groove 260 relative to the sliding groove 260, wherein the extension direction of the sliding groove 260 is parallel to the first direction or the second direction, so as to guide the movement of the adjusting block 100 relative to the base 200 along the first direction or the second direction. Preferably, the sliding groove 260 extends along the second direction. In this embodiment, the sliding groove 260 is arranged on the base 200.

[0063] In other embodiments, the sliding groove 260 can also be arranged on the adjusting block 100, and the base plate 280 is connected with the sliding block 270.

[0064] Referring to Figure 1 and Figure 2 In one of the embodiments, the adjusting part 330 is threadedly connected with the base 200, and the adjusting assembly 300 further comprises a fixing block 320, the fixing block 320 is threadedly connected with the adjusting part 330, and abuts against the side of the base 200 facing the adjusting block 100.

[0065] Specifically, the base 200 is arranged above the coil 40, and under the action of gravity, the part of the adjusting member 330 penetrating through the base 200 abuts against the coil 40, and since the adjusting member 330 is threadedly connected with the base 200, when the adjusting member 330 is controlled to rotate, the base 200 can be driven to move along the third direction through the threaded transmission, so as to adjust the position of the phantom 20 along the third direction, and improve the adjustment range of the positioning and adjusting tool 10 for the magnetic resonance phantom. Preferably, the third direction is the direction of gravity. Preferably, the adjusting member 330 is a screw.

[0066] When the adjusting member 330 drives the base 200 to move along the third direction to a target position, the fixed block 320 is rotated to abut against the adjusting member 330, so as to improve the stability of the connection between the adjusting member 330 and the base 200, and the base 200 is stably fixed at the current height, thereby improving the position adjustment precision of the phantom 20 on the adjusting block 100.

[0067] Further, the two adjusting members 330 are arranged on the clamping block 210 in a spaced manner, and the adjusting members 330 penetrate through the clamping block 210, the blocking block 220 and the base plate 280 in sequence, so as to improve the area of the threaded connection between the adjusting member 330 and the base 200, and improve the stability of the connection between the adjusting member 330 and the base 200.

[0068] Further, the side of the base plate 280 facing the adjusting block 100 is further provided with a supporting block 240, the supporting block 240 is arranged on the side of the adjusting block 100 away from the clamping block 210, and the supporting block 240 is provided with the adjusting member 330, that is, the three adjusting members 330 form a triangular structure, so as to stably fix the base 200 at the current height through cooperation with the base 200, and improve the position adjustment precision. In other embodiments, the adjusting member 330 can also be four, five or other numbers.

[0069] Referring to Figure 1 and Figure 3 In one of the embodiments, the adjusting block 100 is provided with a first scale line 440 extending along the first direction, and the base 200 is provided with a first reference, the first reference abuts against the first scale line 440, and the adjustment size of the adjusting block 100 relative to the base 200 along the first direction is determined by the scale on the first scale line 440 pointed by the first reference.

[0070] Further, the positioning and adjusting tool 10 for the magnetic resonance phantom further comprises a scale 470, the scale 470 is arranged on the side of the clamping block 210 facing the adjusting block 100 and above the cooperation groove 211, and the scale 470 is configured as the first reference, and the adjustment size of the adjusting block 100 along the first direction is determined by the scale on the first scale line 440 pointed by the scale 470.

[0071] Referring to Figure 1 andFigure 3 In one of the embodiments, the adjusting block 100 is provided with a second scale line 450 extending along the second direction, and the base 200 is provided with a second reference abutting against the second scale line 450, and the adjusting size of the adjusting block 100 in the second direction relative to the base 200 is determined by the scale on the second scale line 450 pointed by the second reference.

[0072] Specifically, the adjusting block 100 is provided with the second scale line 450 on at least one side in the first direction, and the second scale line 450 is partially located in the fitting groove 211, and the edge of the clamping block 210 close to the fitting groove 211 is configured as the second reference, and the adjusting size of the adjusting block 100 in the second direction is determined by the scale on the second scale line 450 pointed by the edge of the clamping block 210 close to the fitting groove 211.

[0073] Referring to Figure 1 and Figure 3 , the positioning and adjusting tool 10 of the magnetic resonance phantom further comprises a positioning ruler 480 provided with a third scale line 460, the positioning ruler 480 is arranged along the third direction in the base 200, and the base 200 is provided with a third reference abutting against the third scale line 460, and the adjusting size of the adjusting block 100 in the third direction relative to the base 200 is determined by the scale on the third scale line 460 pointed by the third reference.

[0074] Specifically, the positioning ruler 480 is arranged along the third direction in the base plate 280 and the clamping block 210, and abuts against the component below the base plate 280, and when the adjusting component 330 drives the base 200 to move upward, the positioning ruler 480 moves relative to the clamping block 210, and the upper surface of the clamping block 210 is configured as the third reference, and the adjusting size of the adjusting block 100 in the third direction is determined by the scale on the third scale line 460 pointed by the upper surface of the clamping block 210.

[0075] Referring to Figure 1 and Figure 2 In one of the embodiments, the base plate 280 is provided with a groove 281, so as to reduce the weight.

[0076] Referring to Figure 1 and Figure 2 In one of the embodiments, the positioning and adjusting tool 10 of the magnetic resonance phantom further comprises a first level meter 420 mounted on the base 200, and the first level meter 420 extends along the first direction to detect the horizontal state of the base 200 in the first direction, so as to ensure the horizontal state of the positioning and adjusting tool 10 of the magnetic resonance phantom in the first direction, and improve the reliability of the positioning and adjusting tool 10 of the magnetic resonance phantom.

[0077] Referring to Figure 1 and Figure 2In one of the embodiments, the positioning and adjusting tool 10 of the magnetic resonance phantom further comprises a second level meter 430 installed on the base 200, the second level meter 430 extends along a second direction for detecting the horizontal state of the base 200 in the second direction, so as to ensure the horizontal state of the positioning and adjusting tool 10 of the magnetic resonance phantom in the second direction, and improve the reliability of the positioning and adjusting tool 10 of the magnetic resonance phantom. That is, by the first level meter 420 and the second level meter 430, the horizontal state of the positioning and adjusting tool 10 of the magnetic resonance phantom in the horizontal plane is ensured, and the reliability of the positioning and adjusting tool 10 of the magnetic resonance phantom is improved.

[0078] Referring to Figure 1 , Figure 2 and Figure 4 In one of the embodiments, the positioning and adjusting tool 10 of the magnetic resonance phantom further comprises a limiting assembly 500, the limiting assembly 500 comprises a limiting block 510 and a connecting piece 530, the limiting block 510 is provided with a strip-shaped hole 520, the connecting piece 530 is connected to the base 200 and passes through the strip-shaped hole 520, so as to fix the limiting block 510 on the base 200, and the limiting block 510 can move along the extension direction of the strip-shaped hole 520 relative to the base 200, so as to make the limiting block 510 partially extend out of the base 200, and abut against the coil 40.

[0079] Specifically, the strip-shaped hole 520 extends along the first direction, in the initial state, the limiting block 510 is retracted on the base plate 280, so that the positioning and adjusting tool 10 of the magnetic resonance phantom has the minimum size in the first direction, thereby facilitating the positioning and adjusting tool 10 of the magnetic resonance phantom to be placed on the coil 40, and by controlling the limiting block 510 to move along the extension direction of the strip-shaped hole 520 relative to the base plate 280, the limiting block 510 partially extends out of the base 200, so as to increase the size of the positioning and adjusting tool 10 of the magnetic resonance phantom in the first direction, and make the limiting block 510 abut against the coil 40, so as to ensure that the positioning and adjusting tool 10 of the magnetic resonance phantom is in the accurate position of the coil 40. Preferably, the connecting piece 530 is a screw, and is threadedly connected with the base plate 280. Preferably, the number of the limiting assembly 500 is two, and is arranged on both sides of the base plate 280 along the first direction.

[0080] Referring to Figure 1 , Figure 2 and Figure 4The application also provides a magnetic resonance device, which comprises the magnetic resonance phantom positioning and adjusting tool 10 described above, and in the application, the adjusting piece 310 is used to drive the adjusting block 100 to move in the first direction and the second direction, the adjusting piece 330 is used to drive the adjusting block 100 to move up and down in the third direction, so as to realize the position adjustment of the adjusting block 100 in space, thereby realizing the position adjustment of the phantom 20 on the adjusting block 100 in space, and the fastener 410 is arranged through the base 200 and can move along the extending direction of the fastener 410 relative to the base 200 to abut against the adjusting block 100, so as to limit the position of the adjusting block 100 relative to the base 200, so that the adjusting block 100 is stably arranged at the current position of the base 200, thereby improving the position adjustment precision of the phantom 20 on the adjusting block 100.

[0081] Further, the magnetic resonance device further comprises a magnet system 50, a patient bed 30 and a coil 40, the coil 40 is arranged on the patient bed 30, the magnetic resonance phantom positioning and adjusting tool 10 is arranged on the coil 40, and the patient bed 30 is used to drive the phantom 20 on the magnetic resonance phantom positioning and adjusting tool 10 to extend into the magnet system 50.

[0082] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present application.

[0083] The above-mentioned embodiments only express several implementation manners of the application, the description is more specific and detailed, however, it should not be understood as the limitation of the patent application scope. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

Claims

1. A positioning adjustment tool for a magnetic resonance phantom, characterized in that, The positioning and adjusting tool for the magnetic resonance phantom comprises: an adjusting block (100) for supporting the phantom (20); a base (200) for supporting the adjusting block (100); an adjusting assembly (300) comprising an adjusting member (330) and two adjusting members (310), the two adjusting members (310) are arranged in the base (200) and connected with the adjusting block (100), one of the two adjusting members (310) is used to drive the adjusting block (100) to move in a first direction, the other of the two adjusting members (310) is used to drive the adjusting block (100) to move in a second direction, the adjusting member (330) is connected with the base (200), and the adjusting member (330) is used to drive the base (200) to move up and down in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; and a fastener (410) arranged in the base (200), the fastener (410) is configured to move in its extending direction relative to the base (200) to abut against the adjusting block (100) to limit the position of the adjusting block (100) relative to the base (200).

2. The positioning adjustment tool for a magnetic resonance phantom according to claim 1, characterized in that The base (200) comprises a base plate (280) for supporting the adjusting block (100) and a clamping block (210) protruding from the side of the base (200) facing the adjusting block (100), and a matching groove (211) is formed between the clamping block (210) and the base plate (280), the adjusting block (100) is partially arranged in the matching groove (211), the fastener (410) is arranged in the clamping block (210), and part of the structure of the fastener (410) extends into the matching groove (211) and is used to abut against the adjusting block (100).

3. The positioning adjustment tool for a magnetic resonance phantom according to claim 1, characterized in that The base (200) is provided with matching holes (290), and the adjusting members (310) are arranged in the corresponding matching holes (290); The adjusting member (310) used to drive the adjusting block (100) to move in the first direction has a movable gap with the hole wall of the corresponding matching hole (290) in the second direction; The adjusting member (310) used to drive the adjusting block (100) to move in the second direction has a movable gap with the hole wall of the corresponding matching hole (290) in the first direction.

4. The positioning adjustment tool for a magnetic resonance phantom according to claim 3, characterized in that The base (200) is provided with a connecting cavity (250) communicating with the matching holes (290), the adjusting member (310) comprises an adjusting rod (314) and a positioning block (313), the adjusting rod (314) is arranged in the matching hole and is threadedly connected with the adjusting block (100), the positioning block (313) is connected with the adjusting rod (314) and is arranged in the connecting cavity (250), and the positioning block (313) abuts against the cavity wall of the connecting cavity (250) to limit the movement of the corresponding adjusting rod (314) in its extending direction relative to the base (200).

5. The positioning adjustment tool for a magnetic resonance phantom according to claim 1, wherein, The base (200) is provided with a sliding groove (260), and the positioning and adjusting tool for the magnetic resonance phantom further comprises a sliding block (270) which is in convex-concave matching with the sliding groove (260) and is connected with the adjusting block (100), and the sliding block (270) can move along the extension direction of the sliding groove (260) relative to the sliding groove (260), wherein the extension direction of the sliding groove (260) is parallel to the first direction or the second direction.

6. The positioning adjustment tool for a magnetic resonance phantom according to any one of claims 1 to 5, characterized in that The adjusting assembly (300) further comprises a fixing block (320) which is in threaded connection with the adjusting part (330) and is used to abut against one side of the base (200) which faces the adjusting block (100).

7. A positioning adjustment tool for a magnetic resonance phantom according to any one of claims 1-5, characterized in that, The positioning and adjusting tool for the magnetic resonance phantom further comprises a first level meter (420) which is installed on the base (200) and extends along the first direction so as to detect the horizontal state of the base (200) in the first direction, and / or a second level meter (430) which is installed on the base (200) and extends along the second direction so as to detect the horizontal state of the base (200) in the second direction.

8. The positioning adjustment tool for a magnetic resonance phantom according to any one of claims 1 to 5, characterized in that The positioning and adjusting tool for the magnetic resonance phantom further comprises a limiting assembly (500) which comprises a limiting block (510) and a connecting piece (530), the limiting block (510) is provided with a strip-shaped hole (520), the connecting piece (530) is connected to the base (200) and is arranged in the strip-shaped hole (520) so as to fix the limiting block (510) on the base (200), and the limiting block (510) can move along the extension direction of the strip-shaped hole (520) relative to the base (200) so as to partially extend out of the base (200) and abut against the coil (40).

9. A positioning adjustment tool for a magnetic resonance phantom according to any one of claims 1-5, characterized in that, The adjusting block (100) is provided with a first scale line (440) which extends along the first direction, the base (200) is provided with a first reference which abuts against the first scale line (440), and the size of the adjusting block (100) which is adjusted relative to the base (200) in the first direction is determined by the scale which is pointed by the first reference to the first scale line (440); and / or, The adjusting block (100) is provided with a second scale line (450) which extends along the second direction, the base (200) is provided with a second reference which abuts against the second scale line (450), and the size of the adjusting block (100) which is adjusted relative to the base (200) in the second direction is determined by the scale which is pointed by the second reference to the second scale line (450); and / or, The positioning and adjusting tool of the magnetic resonance phantom further comprises a positioning ruler (480) provided with a third scale line (460) extending along the third direction, the positioning ruler (480) is arranged along the third direction in the base (200), the base (200) is provided with a third reference, the third reference abuts against the third scale line (460), and the size of the adjusting block (100) adjusted relative to the base (200) in the third direction is determined by the scale of the third reference pointing to the third scale line (460).

10. A magnetic resonance apparatus, characterized by The positioning and adjusting tool (10) of the magnetic resonance phantom comprises the magnetic resonance phantom according to any one of claims 1-9.

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