Miniature CT (Computed Tomography) die body adjusting bracket and miniature CT equipment
By designing a micro CT modular adjustment bracket containing a mating slot and a mating block, the problem of inconvenient adjustment in the prior art is solved, and the test of the modular being conveniently deviating from the scanning center relative to the bed is realized, and the simplicity of operation and testing efficiency are improved.
Patent Information
- Application Number
- CN202422017943.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing micro CT modular adjustment bracket has complex structure and is inconvenient to adjust, making it difficult to achieve convenient testing of the modular deviating from the scanning center relative to the bed.
A micro CT mold adjustment bracket is designed, including a bracket main body and a mating member, the mating member is connected to the mold, the support main body is connected to the bed, one of the mating member and the support main body is equipped with a mating groove, and the other is equipped with a mating block, which can move in the extension direction relative to the mating groove, achieving convenient adjustment.
Through this adjustment bracket, the position of the mold relative to the bed can be easily adjusted, and the test of the mold relative to the bed is deviated from the scanning center, simplifying the operation process and improving the testing efficiency.
Smart Images
Figure CN222925278U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scientific instruments, in particular to a micro-CT phantom adjustment bracket and a micro-CT device. Background Art
[0002] Micro-CT (micro computed tomography) devices are generally used for scanning and detecting animal ex vivo tissues, biological materials, etc. A phantom is an essential diagnostic tool for the daily maintenance, routine calibration inspection, and repair of micro-CT devices. Among them, the phantom is generally installed on the bed through an adjustment bracket. When detecting a micro-CT device, it is necessary to adjust the adjustment bracket to move the phantom relative to the bed for testing the deviation from the scanning center of the phantom. However, the existing adjustment brackets have the problems of complex structure and inconvenient adjustment. Summary of the Utility Model
[0003] Based on this, in view of the technical problems of the existing micro-CT phantom adjustment bracket with complex structure and inconvenient adjustment, it is necessary to provide a micro-CT phantom adjustment bracket.
[0004] A micro-CT phantom adjustment bracket includes a bracket main body and a fitting; the bracket main body is used for connecting with the bed, the fitting is used for connecting with the phantom, one of the fitting and the bracket main body is provided with a fitting groove, the other is provided with a fitting block, the fitting block is received in the fitting groove, and the fitting block can move relative to the fitting groove along the extending direction of the fitting groove.
[0005] In one embodiment, at least one side of the fitting groove in the extending direction has an opening for the fitting block to extend into or out of;
[0006] The groove wall of the fitting groove is provided with a limiting portion on at least one side in the width direction of the fitting groove, and the limiting portion is used for abutting against the outer wall of the fitting block to limit the fitting block from disengaging from the fitting groove along the depth direction of the fitting groove.
[0007] In one embodiment, in the direction from the bottom wall of the fitting groove outward, the groove width of the fitting groove gradually decreases, and the groove walls of the fitting groove in the width direction are configured as the limiting portions.
[0008] In one embodiment, the fitting is provided with a boss, and the micro-CT phantom adjustment bracket further includes a limiting member connected to the boss. The limiting member can move relative to the bracket main body to abut against the bracket main body to limit the fitting block from moving relative to the bracket main body along the extending direction of the fitting groove.
[0009] In one embodiment, a sliding groove extending along the extension direction of the fitting groove is further provided on the bracket body. A part of the limiting member extends into the sliding groove and abuts against the groove side wall of the sliding groove on the side close to the notch of the fitting groove to limit the limiting member from moving away from the sliding groove in the depth direction of the fitting groove.
[0010] In one embodiment, reference walls are provided on both sides of the bracket body in the extension direction of the fitting groove. The reference walls are used to be within the scanning safety boundary of the micro-CT device, and in the depth direction of the fitting groove, the reference walls are used to be outside the projection contour of the phantom.
[0011] In one embodiment, the reference wall is arc-shaped, and in the depth direction of the fitting groove, the center of the circle of the reference wall is located on the axis of the scanning center of the micro-CT device.
[0012] In one embodiment, scale lines are provided on at least one side of the bracket body in the width direction of the fitting groove. The scale lines are arranged along the extension direction of the fitting groove. A marking portion is provided on the fitting member. When the marking portion is configured to coincide with a scale line, the eccentricity distance of the fitting member is displayed.
[0013] In one embodiment, the bracket body includes a support rod and an adjustment plate. One end of the support rod is used to connect to the bed body, and the other end is used to connect to the adjustment plate. The fitting groove is provided on the adjustment plate. In the depth direction of the fitting groove, the projection contour of the support rod is located inside the projection contour of the adjustment plate.
[0014] The present utility model further provides a micro-CT device, which can solve at least one of the above technical problems.
[0015] A micro-CT device includes the above-mentioned micro-CT phantom adjustment bracket. The micro-CT device further includes a bed body, and the micro-CT phantom adjustment bracket is detachably connected to the bed body.
[0016] Beneficial effects:
[0017] The micro-CT phantom adjustment bracket provided by the embodiment of the present utility model includes a bracket main body and a fitting; the bracket main body is used to connect with the bed body, and the fitting is used to connect with the phantom. One of the fitting and the bracket main body is provided with a fitting groove, and the other is provided with a fitting block. The fitting block is accommodated in the fitting groove, and the fitting block can move relative to the fitting groove along the extension direction of the fitting groove. In this application, by accommodating the fitting block in the fitting groove, the fitting can be conveniently installed on the bracket main body. Among them, the fitting block can move relative to the fitting groove along the extension direction of the fitting groove, so that the relative position of the fitting relative to the bracket main body in the extension direction of the fitting groove can be conveniently adjusted. Since the phantom is connected to the fitting and the bed body is connected to the bracket main body, the position of the phantom relative to the bed body in the extension direction of the fitting groove can be conveniently adjusted, and thus the test of the phantom deviating from the scanning center relative to the bed body can be conveniently realized.
[0018] The present utility model also provides a micro-CT device, including the above-mentioned micro-CT phantom adjustment bracket. The micro-CT device further includes a bed body, and the micro-CT phantom adjustment bracket is detachably connected to the bed body. This micro-CT device can achieve at least one of the above technical effects. Description of the Drawings
[0019] Figure 1 It is a schematic diagram of the cooperation between the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model and the phantom.
[0020] Figure 2 It is a schematic diagram of the bracket main body in the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model.
[0021] Figure 3 It is a schematic diagram of the connection between the fitting and the phantom in the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model.
[0022] Figure 4 It is a left view of the cooperation between the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model and the phantom.
[0023] Reference Numerals in the Drawings:
[0024] 100 - Bracket main body; 110 - Support rod; 111 - Positioning pin; 120 - Adjusting plate; 130 - Fitting groove; 131 - Limiting part; 132 - Opening; 140 - Sliding groove; 141 - Avoidance opening; 150 - Reference wall; 160 - Scale line; 200 - Fitting; 210 - Fitting block; 220 - Boss; 221 - Connection hole; 230 - Fitting plate; 240 - Marking part; 300 - Limiting part; 400 - Quick-release structural part; 500 - Phantom; 600 - Scanning safety boundary. Detailed Embodiments
[0025] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following provides a detailed description of the specific embodiments of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present utility model. However, the present utility model 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 connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0026] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0028] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.
[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.
[0031] Refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 is a schematic diagram of the cooperation between the micro-CT phantom adjustment bracket and the phantom provided by an embodiment of the present utility model. Figure 2 is a schematic diagram of the bracket body in the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model. Figure 3 is a schematic diagram of the connection between the fitting and the phantom in the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model. An embodiment of the present utility model provides a micro-CT phantom adjustment bracket, including a bracket body 100 and a fitting 200; the bracket body 100 is used for connecting with the bed body, the fitting 200 is used for connecting with the phantom 500, one of the fitting 200 and the bracket body 100 is provided with a fitting groove 130, the other is provided with a fitting block 210, the fitting block 210 is received in the fitting groove 130, and the fitting block 210 can move relative to the fitting groove 130 along the extending direction of the fitting groove 130.
[0032] Specifically, in the present application, the mating block 210 is accommodated in the mating groove 130, so that the mating piece 200 can be conveniently installed on the bracket body 100, wherein the mating block 210 can move relative to the mating groove 130 along the extension direction of the mating groove 130, thereby conveniently adjusting the relative position of the mating piece 200 relative to the bracket body 100 in the extension direction of the mating groove 130, and the mold body 500 is connected to the mating piece 200, and the bed body is connected to the bracket body 100, thereby conveniently adjusting the position of the mold body 500 relative to the bed body in the extension direction of the mating groove 130, and thus conveniently realizing the test of the mold body 500 deviating from the scanning center relative to the bed body.
[0033] It should be noted that the instructions are attached Figure 2 Taking an example for explanation, define XX' as the extension direction of the matching groove 130, YY' as the depth direction of the matching groove 130, and ZZ' as the width direction of the matching groove 130. The extension direction, depth direction, and width direction of the matching groove 130 are perpendicular to each other. The following description is based on the extension direction, depth direction, and width direction.
[0034] See also Figure 1 , Figure 2 and Figure 3 In one embodiment, the mating groove 130 has an opening 132 on at least one side in the extension direction, and the opening 132 is used for the mating block 210 to extend into or out of the mating groove 130; the groove wall of the mating groove 130 is provided with a limiting portion 131 on at least one side in the width direction of the mating groove 130, and the limiting portion 131 is used to abut against the outer wall of the mating block 210 to limit the mating block 210 from getting out of the mating groove 130 along the depth direction of the mating groove 130.
[0035] Specifically, the limiting portion 131 provided on the groove wall of the matching groove 130 in the width direction can limit the matching block 210 from escaping from the matching groove 130 in the depth direction of the matching groove 130, so that the matching block 210 is stably accommodated in the matching groove 130, thereby improving the stability of the connection between the matching piece 200 and the bracket body 100. Among them, the setting of the opening 132 of the matching groove 130 in the extension direction can facilitate the insertion or escaping of the matching block 210, so that the setting position of the limiting portion 131 is not restricted. Preferably, the matching groove 130 has openings 132 on both sides of the extension direction.
[0036] See also Figure 1 , Figure 2 and Figure 3 In one embodiment, the width of the mating groove 130 gradually decreases from the bottom wall of the mating groove 130 toward the outside, and the groove wall of the mating groove 130 in the width direction is configured as a limiting portion 131.
[0037] Specifically, the projection profile of the mating block 210 in the extending direction of the mating groove 130 is trapezoidal. The width of the bottom wall of the mating groove 130 is greater than the width of the notch of the mating groove 130, that is, the groove walls of the mating groove 130 in the width direction are inclined surfaces, so as to apply a component force towards the bottom wall of the mating groove 130 to the outer wall of the mating block 210, so as to stably limit the mating block 210 from disengaging from the mating groove 130 along the depth direction of the mating groove 130.
[0038] Among them, by providing the groove walls of the mating groove 130 in the width direction to form the limiting portion 131, the setting of other components can be reduced, the structure of the micro-CT phantom adjustment bracket can be simplified, and the processing cost can be reduced. Preferably, the two groove walls of the mating groove 130 in the width direction are symmetrically arranged.
[0039] In other embodiments, the groove wall of the mating groove 130 is provided with a protruding portion in the width direction. The side of the protruding portion close to the bottom wall of the mating groove 130 is used to abut against the mating block 210 to limit the mating block 210 from disengaging from the mating groove 130 along the depth direction, that is, the protruding portion is configured as the limiting portion 131.
[0040] Refer to Figure 1 、 Figure 2 and Figure 3 In one of the embodiments, a boss 220 is provided on the mating member 200. The micro-CT phantom adjustment bracket further includes a limiting member 300. The limiting member 300 is connected to the boss 220. The limiting member 300 can move relative to the bracket main body 100 to abut against the bracket main body 100 to limit the mating block 210 from moving relative to the bracket main body 100 along the extending direction of the mating groove 130.
[0041] Specifically, the boss 220 is provided on one side of the bracket main body 100 in the width direction of the mating groove 130. By abutting the limiting member 300 against the bracket main body 100, the friction force of the limiting member 300 moving relative to the bracket main body 100 is increased to limit the movement of the limiting member 300 relative to the bracket main body 100. And the limiting member 300 is connected to the boss 220, so that the movement of the mating member 200 relative to the bracket main body 100 can be limited, and the relative position of the phantom 500 connected to the mating member 200 and the bracket main body 100 can be fixed, so that the test of the phantom 500 deviating from the scanning center can be carried out, and the reliability of the micro-CT phantom adjustment bracket can be improved.
[0042] Further, a connection hole 221 is provided on the boss 220. The limiting member 300 passes through the connection hole 221 and is threadedly connected to the hole wall of the connection hole 221. By rotating the limiting member 300 relative to the boss 220, the limiting member 300 can move relative to the boss 220 to approach or move away from the bracket main body 100.
[0043] Refer to Figure 1 、 Figure 2and Figure 3 In one embodiment, a sliding groove 140 extending along the extension direction of the mating groove 130 is further provided on the bracket body 100. The limiting member 300 partially extends into the sliding groove 140 and abuts against the groove side wall on the side of the notch of the sliding groove 140 close to the mating groove 130, so as to limit the limiting member 300 from moving away from the sliding groove 140 along the depth direction of the mating groove 130.
[0044] Specifically, the part of the limiting member 300 passing through the boss 220 extends into the sliding groove 140 and abuts against the groove side wall of the sliding groove 140, thereby increasing the friction force of the limiting member 300 moving relative to the bracket body 100, and being able to limit the movement of the limiting member 300 relative to the bracket body 100, that is, being able to limit the movement of the mating block 210 relative to the bracket body 100 along the extension direction and the depth direction of the mating groove 130. Since the limiting member 300 abuts against the groove side wall on the side of the notch of the sliding groove 140 close to the mating groove 130, the movement of the limiting member 300 relative to the bracket body 100 towards the notch side of the mating groove 130 is restricted, so that the mating block 210 can be more stably restricted from coming out of the mating groove 130 along the depth direction of the mating groove 130, and the reliability of the limiting of the mating member 200 and the bracket body 100 in the depth direction of the mating groove 130 is improved. Preferably, the limiting member 300 is a screw.
[0045] Wherein, when it is necessary to disassemble the mating member 200 and the bracket body 100, control the limiting member 300 to rotate reversely, so that the limiting member 300 moves away from the bracket body 100, and the movement of the mating block 210 relative to the mating groove 130 along the extension direction of the mating groove 130 can be unrestricted, so that the mating block 210 can come out through the opening 132.
[0046] Further, avoiding openings 141 corresponding to the openings 132 of the mating groove 130 are provided on both sides of the sliding groove 140 in the extension direction. Thus, when disassembling the mating member 200, the limiting member 300 only needs to be separated from the bottom wall of the sliding groove 140 and does not need to protrude out of the sliding groove 140, thereby shortening the moving distance of the limiting member 300 and improving the efficiency.
[0047] Refer to Figure 1 、 Figure 2 and Figure 4 , Figure 4The left view of the cooperation between the micro-CT phantom adjustment bracket provided by an embodiment of the present utility model and the phantom. In one embodiment, reference walls 150 are provided on both sides of the support body 100 in the extending direction of the fitting groove 130. When the micro-CT phantom adjustment bracket is installed on the bed of the micro-CT device, the reference walls 150 are located within the scanning safety boundary 600 of the micro-CT device. The scanning safety boundary 600 refers to the boundary that can ensure scanning safety and does not interfere with other components. When performing phantom adjustment and testing, in the depth direction of the fitting groove 130, the reference walls 150 are located outside the projected contour of the phantom 500, so that the phantom 500 is always located within the scanning safety boundary 600, to meet the conditions for performing off-center scanning tests on the phantom 500, avoid interference, and improve the reliability of the micro-CT phantom adjustment bracket. Among them, an opening 132 is provided on the reference wall 150.
[0048] Refer to Figure 1 , Figure 2 and Figure 4 , in one embodiment, the reference wall 150 is arc-shaped, and the center of the reference wall 150 is located on the scanning central axis of the micro-CT device, so as to accurately simulate the scanning safety boundary 600 to prevent the phantom 500 from extending beyond the scanning safety boundary 600. In addition, compared with the way that the reference wall 150 is a flat surface, the size of the reference wall 150 in the width direction of the fitting groove 130 can be shortened, reducing interference with other components.
[0049] Refer to Figure 1 , Figure 2 and Figure 3 , in one embodiment, the support body 100 is provided with scale lines 160 on at least one side in the width direction of the fitting groove 130. The scale lines 160 are arranged along the extending direction of the fitting groove 130. A marking portion 240 is provided on the fitting member 200. When the marking portion 240 is configured to coincide with a scale line, it shows the eccentric distance of the fitting member 200.
[0050] Specifically, the support body 100 is provided with scale lines 160 on both sides in the width direction of the fitting groove 130. The fitting member 200 is provided with a marking portion 240 corresponding to the scale lines 160. During the process of the fitting block 210 moving relative to the fitting groove 130 along the extending direction, the eccentric distance of the fitting member 200 can be quantified by the reading of the scale line 160 that coincides with the marking portion 240, and then the eccentric distance of the phantom 500 can be obtained. Among them, in the depth direction of the fitting groove 130, the center of the phantom 500 coincides with the center of the fitting member 200, and the marking portion 240 is provided at the central position of the fitting member 200. Preferably, the marking portion 240 is a line provided on the fitting member 200.
[0051] Further, the fitting member 200 includes a fitting plate 230 for connecting with the mold body 500. The fitting block 210 protrudes from the fitting plate 230. The boss 220 is disposed on the fitting block 210 and is spaced from the fitting block 210 in the width direction of the fitting groove 130. The marking portion 240 is disposed at the center position of the fitting plate 230. The fitting plate 230 can be bonded to the mold body 500 so as to be adapted to perform the eccentric distance test on different mold bodies 500.
[0052] Further, the scale line 160 extends from one side of the support body 100 in the width direction of the fitting groove 130 to one side of the support body 100 in the depth direction of the fitting groove 130, so that the marking portion 240 can coincide in the depth direction of the fitting groove 130, improving the accuracy of measuring the eccentric distance of the mold body 500.
[0053] Refer to Figure 1 and Figure 2 In one embodiment, the support body 100 includes a support rod 110 and an adjustment plate 120. One end of the support rod 110 is used to connect to the bed body, and the other end is used to connect to the adjustment plate 120. The fitting groove 130 is disposed on the adjustment plate 120. In the depth direction of the fitting groove 130, the projection profile of the support rod 110 is located inside the projection profile of the adjustment plate 120, that is, the width and length of the adjustment plate 120 are both greater than the length and width of the support rod 110, so as to make the micro-CT mold body adjustment bracket lightweight. The sliding groove 140 is disposed on the side wall of the adjustment plate 120 in the width direction of the fitting groove 130, and the reference wall 150 is disposed on the side wall of the adjustment plate 120 in the extending direction of the fitting groove 130, and the scale line 160 is disposed on the adjustment plate 120.
[0054] Further, a positioning pin 111 is provided on the side of the support rod 110 away from the adjustment plate 120. The positioning pin 111 is fixed to the support rod 110 by a thread. The positioning pin 111 and the end of the support rod 110 can be inserted into the quick-release structural member 400 on the bed body, and the positioning pin 111 is fixed by a spring buckle. At the same time, the positioning pin 111 is inserted into the positioning hole of the quick-release structural member 400 to ensure that the support body 100 is horizontal without tilting. Pressing the button on the quick-release structural member 400 can release the spring buckle, and the support body 100 can be pulled out outward.
[0055] An embodiment of the present utility model further provides a micro-CT device, which includes the above-mentioned micro-CT phantom adjustment bracket. The micro-CT device further includes a bed body. The micro-CT phantom adjustment bracket is detachably connected to the bed body. By accommodating the fitting groove 130 in the fitting block 210, the fitting member 200 can be conveniently installed on the bracket main body 100. Among them, the fitting block 210 can move relative to the fitting groove 130 along the extension direction of the fitting groove 130, so that the relative position of the fitting member 200 relative to the bracket main body 100 in the extension direction can be conveniently adjusted. The phantom 500 is connected to the fitting member 200, and the bed body is connected to the bracket main body 100, so that the position of the phantom 500 relative to the bed body in the extension direction can be conveniently adjusted, and further, the test of the phantom 500 deviating from the scanning center relative to the bed body can be conveniently realized.
[0056] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0057] The above embodiments only express several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A micro CT phantom adjustment bracket, characterized in that: The micro CT phantom adjustment bracket comprises a bracket body (100) and a matching piece (200); the bracket body (100) is used to be connected to a bed, and the matching piece (200) is used to be connected to a phantom (500); one of the matching piece (200) and the bracket body (100) is provided with a matching groove (130), and the other is provided with a matching block (210); the matching block (210) is accommodated in the matching groove (130), and the matching block (210) can move relative to the matching groove (130) along an extension direction of the matching groove (130).
2. The micro CT phantom adjustment bracket according to claim 1, characterized in that: The matching groove (130) has an opening (132) on at least one side of the extending direction, and the opening (132) is used for the matching block (210) to extend into or escape from; A groove wall of the matching groove (130) is provided with a limiting portion (131) on at least one side in the width direction of the matching groove (130), and the limiting portion (131) is used to abut against an outer wall of the matching block (210) to limit the matching block (210) from escaping from the matching groove (130) along the depth direction of the matching groove (130).
3. The micro CT phantom adjustment bracket according to claim 2, characterized in that: In the direction from the groove bottom wall of the matching groove (130) outward, the groove width of the matching groove (130) gradually decreases, and the groove wall of the matching groove (130) in the width direction is configured as the limiting portion (131).
4. The micro CT phantom adjustment bracket according to claim 1, characterized in that: The mating piece (200) is provided with a boss (220), and the micro CT phantom adjustment bracket further comprises a limit piece (300), the limit piece (300) being connected to the boss (220), and the limit piece (300) being movable relative to the bracket body (100) so as to be pressed against the bracket body (100) so as to limit the movement of the mating block (210) relative to the bracket body (100) along the extension direction of the mating groove (130).
5. The micro CT phantom adjustment bracket according to claim 4, characterized in that: The bracket body (100) is also provided with a slide groove (140) extending along the extension direction of the matching groove (130), and the limiting member (300) partially extends into the slide groove (140) and abuts against the groove side wall of the slide groove (140) close to the groove opening of the matching groove (130) to limit the limiting member (300) from moving away from the slide groove (140) along the depth direction of the matching groove (130).
6. The micro CT phantom adjustment bracket according to claim 1, characterized in that: The support body (100) is provided with reference walls (150) on both sides of the extension direction of the matching groove (130); the reference walls (150) are used to be located within the scanning safety boundary (600) of the micro CT device, and in the depth direction of the matching groove (130), the reference walls (150) are used to be located outside the projection contour of the phantom (500).
7. The micro CT phantom adjustment bracket according to claim 6, characterized in that: The reference wall (150) is in the shape of an arc, and the center of the reference wall (150) is located on the axis of the scanning center of the micro CT device.
8. The micro CT phantom adjustment bracket according to any one of claims 1 to 7, characterized in that: The bracket body (100) is provided with a scale line (160) on at least one side of the matching groove (130) in the width direction, and the scale line (160) is arranged along the extension direction of the matching groove (130). The matching piece (200) is provided with a marking portion (240), and the marking portion (240) is configured to display the eccentric distance of the matching piece (200) when it coincides with a scale line.
9. The micro CT phantom adjustment bracket according to any one of claims 1 to 7, characterized in that: The support body (100) comprises a support rod (110) and an adjustment plate (120); one end of the support rod (110) is used to connect to the bed body, and the other end is used to connect to the adjustment plate (120); the matching groove (130) is arranged on the adjustment plate (120); in the depth direction of the matching groove (130), the projection contour of the support rod (110) is located on the inner side of the projection contour of the adjustment plate (120).
10. A micro CT device, characterized in that: The micro CT phantom adjustment bracket comprises the micro CT phantom adjustment bracket according to any one of claims 1 to 9, wherein the micro CT device further comprises a bed, and the micro CT phantom adjustment bracket is detachably connected to the bed.