Compression device and mammary gland machine

Abstract

The utility model provides a compression device and a mammary gland machine, the mammary gland machine comprises a support, an X-ray source, a detector and the compression device, the X-ray source, the detector and the compression device are installed on the support, and the compression device is located below the X-ray source and above the detector. The compression device comprises a compression plate and a mounting frame, the compression plate comprises a limiting hole and an insertion edge, and the mounting frame is provided with an insertion groove and a limiting column; the inserting edge can be inserted into the inserting groove, the limiting column can be inserted into the limiting hole, the inserting edge abuts against the inner wall of one side of the inserting groove to limit rotation of the pressing plate in the first direction, the limiting column abuts against the inner wall of one side of the limiting hole to limit rotation of the pressing plate in the second direction, and the limiting column can be pressed to retreat from the limiting hole; the first direction is opposite to the second direction. The compression plate can be quickly disassembled and assembled, meanwhile, the compression plate cannot be seriously abraded after being used for a long time, the assembling firmness of the compression plate is guaranteed, and then the image effect is guaranteed.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and more specifically, relates to a compression device and a mammary gland machine. Background Technology

[0002] Mammography machines use X-ray imaging to examine a patient's breasts for lesions and to determine the patient's health. When examining a patient's breast using a mammography system, a compression plate is used to press the breast to a certain thickness to obtain better image quality and examination results. To meet the needs of different usage scenarios, the compression plate needs to be able to be quickly installed and removed. However, the current installation structure of the compression plate does not allow for quick installation and removal, preventing it from being used in various scenarios. Utility Model Content

[0003] The purpose of this application is to provide a compression device and a mammary gland machine to solve the technical problem that the compression plate in the prior art cannot be quickly removed.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: a pressing device is provided, including a pressing plate and a mounting bracket. The pressing plate includes a limiting hole and an insertion edge, and the mounting bracket is provided with a slot and a limiting post. The insertion edge can be inserted into the slot, and the limiting post can be inserted into the limiting hole. The insertion edge abuts against the inner wall of one side of the slot to restrict the pressing plate from rotating in a first direction. The limiting post abuts against the inner wall of one side of the limiting hole to restrict the pressing plate from rotating in a second direction, and the limiting post can be pressed to retract from the limiting hole. The first direction is opposite to the second direction.

[0005] In some embodiments, the slot and the limiting post are respectively disposed on opposite sides of the mounting bracket along a third direction; the insertion edge abuts against the inner wall of one side of the slot along a fourth direction, and the limiting post abuts against the inner wall of one side of the limiting hole along the fourth direction; the fourth direction and the third direction form an angle with each other.

[0006] In some embodiments, the pressure plate includes a pressure body and a first limiting portion and a second limiting portion formed on the pressure body, the first limiting portion and the second limiting portion being opposite to each other and spaced apart, the limiting hole being formed on the first limiting portion, the insertion edge being formed on the second limiting portion, and the pressure body, the first limiting portion and the second limiting portion all at least partially abutting against the mounting bracket.

[0007] In some embodiments, the second limiting portion is provided with a protrusion, the protrusion having a first limiting surface, and the mounting bracket having a limiting groove recessed on the side opposite to the limiting post, the limiting groove having a second limiting surface, the first limiting surface and the second limiting surface being able to abut against each other along the third direction.

[0008] In some embodiments, the mounting bracket has a first arcuate surface, and the pressure plate has a second arcuate surface, the first arcuate surface and the second arcuate surface engaging in a guiding engagement to guide the pressure plate to rotate relative to the mounting bracket.

[0009] In some embodiments, the pressing plate further has a first abutting surface, and the limiting post has a second abutting surface, the second abutting surface being inclined relative to the axial direction of the limiting post; when the pressing plate rotates, the first abutting surface and the second abutting surface abut against each other to press down the limiting post until the limiting post is inserted into the limiting hole.

[0010] In some embodiments, the mounting bracket is provided with an elastic element, which abuts against the limiting post along the axial direction of the limiting post;

[0011] Alternatively, the limiting post may be an elastic structure.

[0012] In some embodiments, the mounting bracket is provided with a limiting member and an elastic member abutting against the limiting member; the limiting member includes a pressing part and the limiting post, the pressing plate has a relief groove to avoid the pressing part, and pressing the pressing part causes the limiting post to disengage from the limiting hole.

[0013] In some embodiments, the mounting bracket includes a frame and a connector mounted on the frame, the limiting post is mounted on the connector, and the slot is formed in the frame.

[0014] In some embodiments, the pressure plate is made of plastic material; the pressure plate has two opposing first sidewalls along a fifth direction, the first sidewalls having a first angle with the fifth direction.

[0015] On the other hand, embodiments of this application provide a mammography machine, including a support and an X-ray source, a detector, and the aforementioned compression device mounted on the support. The compression device is located below the X-ray source and above the detector.

[0016] The advantages of the compression device and mammography machine provided in this application are as follows: The compression plate includes a limiting hole and an insertion edge, and the mounting frame includes a slot and a limiting post. The insertion edge abuts against the inner wall of one side of the slot to restrict the compression plate from rotating in a first direction, and the limiting post abuts against the inner wall of one side of the limiting hole to restrict the compression plate from rotating in a second direction, thereby realizing the installation of the compression plate and the mounting frame. When disassembling, it is only necessary to press the limiting post to make it exit the limiting hole, and then reverse the compression plate to disassemble it. The disassembly and assembly process is simple and allows for quick disassembly and assembly. Furthermore, the insertion edge and slot are limited by surface-to-surface contact, and the limiting post and limiting hole are also limited by surface-to-surface contact. During disassembly and assembly, the surfaces can be separated. Even after long-term use, it will not easily loosen due to severe wear, thus ensuring the assembly reliability of the compression plate and consequently guaranteeing the image quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram showing the state of the mammary gland machine without compressing the mammary gland, provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram illustrating the state of a mammary gland compression device provided in an embodiment of this application.

[0020] Figure 3 A three-dimensional structural diagram of the compression device provided in the embodiment of this application after installation;

[0021] Figure 4 This is an exploded view of the compression device provided in the embodiments of this application;

[0022] Figure 5 for Figure 3 A schematic diagram of the side structure of the central compression device;

[0023] Figure 6 for Figure 5 A schematic diagram of the AA cross-section of the central compression device;

[0024] Figure 7 A schematic diagram showing the state in which the insert edge of the compression device provided in the embodiment of this application begins to be inserted into the slot;

[0025] Figure 8 This is a partial cross-sectional view of the pressing device provided in an embodiment of this application, showing the insertion edge beginning to insert into the slot.

[0026] Figure 9 A partial cross-sectional view of the compression device provided in this application embodiment when the first abutting surface and the second abutting surface are in contact;

[0027] Figure 10 A partial cross-sectional view of the compression device provided in this application embodiment when the limiting pin is inserted into the limiting hole to form a limiting position;

[0028] Figure 11 This is a cross-sectional view of the corresponding protrusion and limiting groove in the compression device provided in the embodiment of this application after the compression plate and the mounting bracket are assembled.

[0029] Figure 12 This is a three-dimensional structural diagram of the frame in the compression device provided in the embodiments of this application;

[0030] Figure 13 A three-dimensional structural diagram of the compression plate in the compression device provided in the embodiment of this application;

[0031] Figure 14 An assembly diagram of the connecting parts and their structures in the compression device provided in the embodiments of this application;

[0032] Figure 15 An exploded view of the connector, limiting member, elastic member, and fastener in the compression device provided in the embodiments of this application;

[0033] Figure 16 This is a cross-sectional schematic diagram of the pressure plate in the pressure device provided in the embodiment of this application.

[0034] The following are the labeling elements in the figure:

[0035] 1. Pressing device; 100. Pressing plate; 110. Pressing body; 111. First side wall; 120. First limiting part; 121. Limiting hole; 122. Second arc-shaped surface; 123. First abutting surface; 124. Clearance groove; 130. Second limiting part; 131. Insertion edge; 132. Protrusion; 1321. First limiting surface; 200. Mounting bracket; 210. Frame; 211. Front crossbeam; 212. Rear crossbeam; 213. Side beam; 214. Slot; 215. Positioning post; 216. 220. Second mounting hole; 221. Connector; 222. Storage part; 223. Bottom cover; 223. Limiting part; 2231. Pressing part; 2232. Limiting post; 2233. Second abutment surface; 224. Elastic part; 225. Fastener; 226. Limiting groove; 2261. Second limiting surface; 227. First arc-shaped surface; 2. Bracket; 3. X-ray source; 4. Detector; 5. Breast; M1. First direction; M2. Second direction; Z. Third direction; X. Fourth direction; Y. Fifth direction. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] As described in the background section, in order to meet the needs of different application scenarios, the compression plate needs to be able to be quickly disassembled and replaced. Especially in the process of three-dimensional puncture, the needle insertion method needs to be determined according to the location of the lesion. Therefore, it is necessary to switch between a horizontal compression plate without a puncture opening and a vertical compression plate with a puncture opening. The compression plate needs to be able to be quickly disassembled and quickly installed, and it needs to be securely fixed after assembly.

[0041] Therefore, this application provides a compression device 1 and a mammary gland machine. By optimizing the assembly structure of the compression plate, it is possible not only to quickly assemble and disassemble the compression plate, but also to ensure the reliable assembly of the compression plate.

[0042] Please see Figure 1 and Figure 2 The mammography machine provided in this application embodiment will now be described in detail. The mammography machine includes a support 2, an X-ray source 3 mounted on the support 2, a detector 4, and the aforementioned compression device 1. The compression device 1 is located below the X-ray source 3 and above the detector 4. Figure 1 This is a diagram showing a state where the object is not under pressure. Figure 2 This is a schematic diagram of the compression device 1 pressing against the breast gland 5. X-rays emitted by the X-ray source 3 pass through the compression device 1 and are directed towards the breast gland 5. The detector 4 is used to capture and convert the X-rays generated by the X-ray source that pass through the breast tissue into electrical signals, thereby generating an image of the breast.

[0043] Please see Figures 3 to 6 The pressing device 1 provided in this application embodiment will now be described in detail. The pressing device 1 includes a pressing plate 100 and a mounting bracket 200. The pressing plate 100 includes a limiting hole 121 and an insertion edge 131. The mounting bracket 200 is provided with a slot 214 and a limiting post 2232. The insertion edge 131 can be inserted into the slot 214, and the limiting post 2232 can be inserted into the limiting hole 121. The insertion edge 131 abuts against one side of the inner wall of the slot 214 to restrict the pressing plate 100 from rotating in the first direction M1. The limiting post 2232 abuts against one side of the inner wall of the limiting hole 121 to restrict the pressing plate 100 from rotating in the second direction M2. The limiting post 2232 can be pressed to exit the limiting hole 121. The first direction M1 and the second direction M2 are opposite.

[0044] Please refer to the following during assembly: Figure 7 and Figure 8 First, rotate the pressure plate 100 by a certain angle along the second direction M2, then insert the insertion edge 131 into the slot 214. The slot 214 is large enough so that the insertion edge 131 can rotate within the slot 214 along the first direction M1. Next, please refer to... Figure 9 and Figure 10 The pressure plate 100 is rotated along the first direction M1 until the limiting post 2232 is inserted into the limiting hole 121 to restrict the pressure plate 100 from rotating along the second direction M2. At this time, the insertion edge 131 and the slot 214 are also assembled in place, and the insertion edge 131 abuts against the inner wall of one side of the slot 214 to restrict the pressure plate 100 from rotating along the first direction M1, thereby realizing the installation between the pressure plate 100 and the mounting bracket 200. During disassembly, the limiting post 2232 is pressed to make the limiting post 2232 exit the limiting hole 121, and the pressure plate 100 is rotated along the second direction M2 until the pressure plate 100 is disengaged from the mounting bracket 200. The insertion edge 131 is then removed from the slot 214 to achieve disassembly.

[0045] The pressing device 1 provided in this application embodiment includes a pressing plate 100 with a limiting hole 121 and an insertion edge 131, and a mounting bracket 200 with a slot 214 and a limiting post 2232. The insertion edge 131 abuts against the inner wall of one side of the slot 214 to restrict the pressing plate 100 from rotating in the first direction M1, and the limiting post 2232 abuts against the inner wall of one side of the limiting hole 121 to restrict the pressing plate 100 from rotating in the second direction M2, so as to realize the installation of the pressing plate 100 and the mounting bracket 200. When disassembling, it is only necessary to press the limiting post 2232 to make the limiting post 2232 exit the limiting hole 121, and then reverse the pressing plate 100 to realize the disassembly of the pressing plate 100. Its disassembly and assembly process is simple and can realize quick disassembly and quick assembly. Furthermore, the insertion edge 131 and the slot 214 are limited by the contact between their surfaces. The limiting post 2232 and the limiting hole 121 are also limited by the contact between their surfaces. The surfaces can be separated during disassembly and assembly. Even after long-term use, the plate will not easily loosen due to severe wear, thus ensuring the assembly reliability of the pressure plate 100 and thus ensuring the image effect.

[0046] In some embodiments, please refer to Figure 6 The slot 214 and the limiting post 2232 are respectively located on opposite sides of the mounting bracket 200 along the third direction Z. The insertion edge 131 abuts against the inner wall of one side of the slot 214 along the fourth direction X. The limiting post 2232 abuts against the inner wall of one side of the limiting hole 121 along the fourth direction X. The fourth direction X and the third direction Z form an angle with each other.

[0047] It should be noted that the relative sides of the mounting bracket 200 here specifically refer to the relative sides of the part of the mounting bracket 200 used to connect with the pressure plate 100, and not the relative sides of the entire mounting bracket 200.

[0048] The angle between the fourth direction X and the third direction Z can be an acute angle, a right angle, or an obtuse angle, preferably a right angle. This angle is achieved by the surfaces abutting each other along the fourth direction X, thereby restricting the rotation of the compression plate 100 along the first direction M1 and the second direction M2. The third direction Z can be a vertical direction, i.e., the height direction of the mammary gland machine, and the fourth direction X can be the distribution direction of the compression plate 100 and the mounting frame 200, i.e., the front-back direction of the mammary gland machine.

[0049] The above-described configuration provides structural constraints on both sides of the pressure plate 100 and the mounting bracket 200 along the third direction Z, thereby improving the connection stability between the pressure plate 100 and the mounting bracket 200. It is understood that in other embodiments of this application, the slot 214 and the limiting post 2232 may also be located on the same side of the mounting bracket 200, or the slot 214 and the limiting post 2232 may be located on adjacent sides of the mounting bracket 200; this is not a limiting limitation.

[0050] In some embodiments, please refer to Figure 6 The slot 214 is recessed inward along the third direction Z on the side of the mounting bracket 200 away from the limiting post 2232, and the limiting post 2232 extends along the third direction Z. It should be noted that, due to the design of the insertion edge 131 and the limiting post 2232, during assembly, it is not possible to directly insert the insertion edge 131 into the slot 214 and the limiting post 2232 into the limiting hole 121. First, the pressure plate 100 needs to be rotated relative to the mounting bracket 200 along the second direction M2 by a preset angle. Then, the insertion edge 131 is inserted into the slot 214 from the side of the mounting bracket 200 away from the limiting post 2232. At this point, the end of the insertion edge 131 abuts against one side of the inner wall of the slot 214. Next, the pressure plate 100 is rotated along the first direction M1 with this abutment position as the fulcrum. During the rotation, the limiting post 2232 is pressed down to avoid the pressure plate 100 until the limiting post 2232 aligns with the limiting hole 121. The limiting post 2232 is then released to allow it to insert into the limiting hole 121, thus completing the assembly.

[0051] In some embodiments, please refer to Figure 6 The dimension of the slot 214 along the fourth direction X is larger than the dimension of the insertion edge 131 along the fourth direction X, so that the insertion edge 131 can be inserted into the slot 214 at an angle and can rotate within the slot 214 until the insertion edge 131 abuts against one side of the inner wall of the slot 214 along the fourth direction X. Specifically, the insertion edge 131 abuts against the inner wall of the slot 214 facing the pressure plate 100, thereby restricting the pressure plate 100 from rotating along the first direction M1.

[0052] In some embodiments, please refer to Figure 12 and Figure 13 The slot 214 extends along the fifth direction Y and is located at the middle of the mounting bracket 200 along the fifth direction Y. The insertion edge 131 extends along the fifth direction Y and is located at the middle of the pressure plate 100 along the fifth direction Y. This arrangement ensures that the limiting effect of the slot 214 and the insertion edge 131 on the pressure plate 100 is evenly distributed along the fifth direction Y. It is understood that in other embodiments of this application, multiple slots 214 and insertion edges 131 distributed along the fifth direction Y can also be provided, and this is not a unique limitation. The fifth direction Y can be the width direction of the pressure plate 100, that is, the left-right direction of the mammography machine. The fifth direction Y, the third direction Z, and the fourth direction X are all perpendicular to each other.

[0053] In some embodiments, please refer to Figure 6The inner diameter of the limiting hole 121 is larger than the outer diameter of the limiting post 2232, allowing the limiting post 2232 to be easily inserted into and easily removed from the limiting hole 121. Furthermore, the limiting post 2232 can abut against the inner wall of the limiting hole 121 along the fourth direction Y and away from the pressure plate 100, thereby restricting the rotation of the pressure plate 100 along the second direction M2.

[0054] In some embodiments, please refer to Figure 13 and Figure 14 The mounting bracket 200 is provided with at least two limiting posts 2232, for example, two, three, four or more limiting posts 2232 can be provided. Each limiting post 2232 is spaced apart along the fifth direction Y. The pressure plate 100 is provided with at least two limiting holes 121, each limiting hole 121 is spaced apart along the fifth direction Y, and each limiting post 2232 is inserted into each limiting hole 121 in a one-to-one correspondence. The arrangement of multiple limiting posts 2232 and multiple limiting holes 121 can ensure that the limiting effect on the pressure plate 100 is evenly distributed along the fifth direction Y. It can be understood that in other embodiments of this application, a single limiting post 2232 can also be provided. In this case, the size of the limiting post 2232 along the fifth direction Y can be designed to be larger, and the limiting post 2232 is located at the center position of the mounting bracket 200 along the fifth direction Y to ensure the uniformity of the limiting effect on the pressure plate 100.

[0055] In some embodiments, please refer to Figure 8 The pressure plate 100 includes a pressure body 110 and a first limiting portion 120 and a second limiting portion 130 respectively formed on the pressure body 110. The first limiting portion 120 and the second limiting portion 130 are opposite to each other and spaced apart. A limiting hole 121 is formed in the first limiting portion 120, and an insertion edge 131 is formed in the second limiting portion 130. The pressure body 110, the first limiting portion 120, and the second limiting portion 130 all at least partially abut against the mounting bracket 200. This arrangement increases the contact area between the pressure plate 100 and the mounting bracket 200, ensuring a reliable assembly between the pressure plate 100 and the mounting bracket 200. It is understood that in other embodiments of this application, the pressure body 110 may not necessarily be in contact with the mounting bracket 200.

[0056] In some embodiments, please refer to Figure 11 , Figure 13 and Figure 14The second limiting part 130 is provided with a protrusion 132, the protrusion 132 has a first limiting surface 1321, and the mounting bracket 200 is recessed on the side away from the limiting post 2232 with a limiting groove 226, the limiting groove 226 has a second limiting surface 2261, the first limiting surface 1321 and the second limiting surface 2261 can abut against each other in the third direction Z, so as to further strengthen the restriction on the rotation of the pressing plate 100 in the first direction M1. For example, when an external force pushes the pressing plate 100 in the first direction M1, the abutment of the first limiting surface 1321 and the second limiting surface 2261 can restrict the rotation of the pressing plate 100 in the first direction M1, thereby ensuring the assembly reliability of the pressing plate 100.

[0057] Specifically, protrusion 132 and insertion edge 131 are respectively formed on the second limiting portion 130. Protrusion 132 and insertion edge 131 are spaced apart along the fourth direction X, where the fourth direction X can be the distribution direction of the compression plate 100 and the mounting bracket 200, that is, the front-back direction of the mammography machine. In the assembled state, both protrusion 132 and insertion edge 131 are formed on the second limiting portion 130 along the third direction Z. Insertion edge 131 abuts against the slot 214 along the fourth direction X and close to the inner sidewall of the compression plate 100, while protrusion 132 abuts against the second limiting surface 2261 of the limiting groove 226 along the third direction Z, further restricting the rotation of the compression plate 100 along the first direction M1.

[0058] Specifically, the protrusion 132 is formed at the end where the second limiting part 130 connects to the pressing body 110. The limiting groove 226 not only penetrates the side of the mounting frame 200 away from the limiting post 2232 along the third direction Z, but also penetrates the side of the mounting frame 200 towards the pressing plate 100 along the fourth direction X. This design facilitates the insertion of the protrusion 132 into the limiting groove 226 when the pressing plate 100 rotates along the first direction M1, until it abuts against the second limiting surface 2261. It can be understood that in other embodiments of this application, the limiting groove 226 may not penetrate the side of the mounting frame 200 along the fourth direction X. In this case, the size of the limiting groove 226 along the fourth direction X can be designed to be large enough to meet the requirements of the protrusion 132 rotating into and sliding out of the limiting groove 226.

[0059] In some embodiments, please refer to Figures 9 to 11The mounting bracket 200 has a first arc-shaped surface 227, and the pressure plate 100 has a second arc-shaped surface 122. The first arc-shaped surface 227 and the second arc-shaped surface 122 are guided to guide the pressure plate 100 to rotate relative to the mounting bracket 200. Specifically, the rotation of the pressure plate 100 along the first direction M1 can be guided to achieve assembly, and the rotation of the pressure plate 100 along the second direction M2 can be guided to achieve disassembly. The first arc-shaped surface 227 and the second arc-shaped surface 122 can ensure the stability of the pressure plate 100 during assembly, reduce the difficulty of assembly and disassembly, and after assembly, the first arc-shaped surface 227 and the second arc-shaped surface 122 can fit together to ensure the assembly stability of the pressure plate 100 and the mounting bracket 200.

[0060] Optionally, the first arcuate surface 227 extends from the side of the mounting bracket 200 facing the pressure plate 100 to the side of the mounting bracket 200 where the limiting post 2232 is mounted, and the second arcuate surface 122 is formed on the side of the first limiting portion 120 facing the mounting bracket 200 and facing the second limiting portion 130. It is understood that in other embodiments of this application, the second arcuate surface 122 may also be formed on the pressure body 110, and this is not a unique limitation.

[0061] In some embodiments, please refer to Figure 9 , Figure 10 and Figure 14 The pressing plate 100 also has a first abutting surface 123, and the limiting post 2232 has a second abutting surface 2233. The second abutting surface 2233 is axially inclined relative to the limiting hole 121. When the pressing plate 100 rotates, the first abutting surface 123 and the second abutting surface 2233 abut against each other to press down the limiting post 2232 until the limiting post 2232 is inserted into the limiting hole 121.

[0062] Specifically, the second abutment surface 2233 is inclined relative to the axial direction of the limiting hole 121, and the second abutment surface 2233 is inclined relative to the axial direction of the limiting hole 121 along the first direction M1, so that the second abutment surface 2233 can abut against the first abutment surface 123.

[0063] During assembly, first rotate the pressure plate 100 along the second direction M2 and insert the insertion edge 131 into the slot 214. Then, rotate the pressure plate 100 along the first direction M1. During rotation, the first arc-shaped surface 227 and the second arc-shaped surface 122 can be used to guide the rotation of the pressure plate 100. When the pressure plate 100 rotates to the preset position, the first abutment surface 123 begins to abut against the second abutment surface 2233. As the pressure plate 100 rotates... Rotation allows the first abutment surface 123 to press the second abutment surface 2233 axially, causing the limiting post 2232 to press down. This prevents the limiting post 2232 from protruding and restricting the pressure plate 100 from continuing to rotate. When the pressure plate 100 rotates to its position, the limiting post 2232 corresponds exactly to the limiting hole 121, and the pressure of the pressure plate 100 on the limiting post 2232 disappears. The limiting post 2232 extends axially and inserts into the limiting hole 121, thus limiting the pressure plate 100. For disassembly, simply press the limiting post 2232 axially downwards to make it exit the limiting hole 121, allowing the pressure plate 100 to rotate in the second direction M2 for disassembly.

[0064] In some embodiments, please refer to Figure 6 and Figure 15 The mounting bracket 200 is provided with an elastic element 224, which abuts against the limiting post 2232 along the axial direction of the limiting post 2232. The elastic element 224 provides elastic force to the limiting post 2232, so that the limiting post 2232 can be pressed down axially when squeezed by the pressure plate 100. When the pressure of the pressure plate 100 on the limiting post 2232 is removed, the pressure plate 100 can rise axially under the push of the elastic force of the elastic element 224 to insert into the limiting hole 121.

[0065] In some embodiments, please refer to Figure 14 and Figure 15The mounting bracket 200 is provided with a limiting member 223 and an elastic member 224 abutting against the limiting member 223; the limiting member 223 includes a pressing part 2231 and a limiting post 2232, and the pressing plate 100 has a relief groove 124 that avoids the pressing part 2231. Pressing the pressing part 2231 causes the limiting post 2232 to disengage from the limiting hole 121. In this embodiment, by providing a pressing part 2231 that is linked to the limiting post 2232, and by having a relief groove 124 on the pressing part 2231 to avoid the pressing part 2231, the pressing part 2231 can be driven to push the limiting member 223 down and disengage from the limiting post 2232. This avoids designing the axial dimension of the limiting post 2232 to be too large in order to facilitate pressing the limiting post 2232, which would make it difficult for the pressure plate 100 to rotate and squeeze the limiting post 2232. In other words, the pressing and driving operation of the limiting post 2232 is simple, and the disassembly difficulty of the pressure plate 100 is reduced. It is understood that in other embodiments of this application, the limiting member 2233 may not be provided, and the limiting post 2232 may directly abut against the elastic member 224. In this case, the cross-sectional dimension of the limiting post 2232 may be designed to be larger to facilitate the driving of the limiting post 2232. This is not the only limitation.

[0066] In some embodiments, please refer to Figure 2 The limiting member 223 includes at least two limiting posts 2232, for example, it may include two, three, four or more limiting posts 2232.

[0067] In some embodiments, please refer to Figure 12 and Figure 14 The mounting bracket 200 includes a frame 210 and a connector 220 mounted on the frame 210. A limiting post 2232 is mounted on the connector 220, and a slot 214 is formed in the frame 210. By providing the connector 220 on the frame 210 of the mounting bracket 200 and mounting the limiting post 2232 on the connector 220, the processing difficulty and cost of both the frame 210 and the connector 220 can be reduced. It is understood that in other embodiments of this application, the connector 220 and the frame 210 can also be designed as an integral structure; this is not a unique limitation.

[0068] In some embodiments, the frame 210 includes a front crossbeam 211, a rear crossbeam 212, and two side beams. The rear crossbeam 212 is opposite to and spaced apart from the front crossbeam 211. The opposite ends of the side beams 213 are connected to the front crossbeam 211 and the rear crossbeam 212, respectively. The side beams 213 are inclined relative to the third direction Z. A connector 220 is installed on the side of the front crossbeam 211 facing the pressure plate 100. The connector 220 is located at the center of the front crossbeam 211 along the fifth direction Y, and the length of the connector 220 along the fifth direction Y is less than the length of the front crossbeam 211 along the fifth direction Y. Specifically, the length of the connector 220 along the fifth direction Y is mainly used to match the dimensions of the pressure plate 100 along the fifth direction Y. This design can reduce the material cost of the connector 220.

[0069] In some embodiments, the connector 220 is provided with a positioning hole and a first mounting hole, and the front crossbeam 211 is provided with a positioning post 215 and a second mounting hole 216. The positioning post 215 is inserted into the positioning hole to realize the positioning of the connector 220 on the front crossbeam 211. The locking member can pass through the first mounting hole and the second mounting hole 216 respectively to lock the connector 220 on the front crossbeam 211.

[0070] Optionally, the number of positioning holes and positioning posts 215 can be one or more. Additionally, the number of first mounting holes and second mounting holes 216 can be one or more.

[0071] In some embodiments, please refer to Figure 14 and Figure 15 The connector 220 includes a storage part 221 and a bottom cover 222. The storage part 221 has a mounting cavity for storing the limiting post 2232 and the elastic member 224. The bottom opening of the mounting cavity is provided. The bottom cover 222 covers the bottom opening of the storage part 221 and is locked by fasteners 225.

[0072] Furthermore, the elastic element 224 includes a compression spring, and a fastener 225 can be inserted into the mounting cavity to guide the installation of the two compression springs. Of course, in other embodiments, a separate guide rod can also be provided to guide the compression springs.

[0073] In some embodiments, the pressure plate 100 is made of plastic material, so that during the exposure process, only the plastic pressure plate 100 is imaged, without interfering with the exposed image.

[0074] Preferably, the pressure plate 100 is made of a transparent plastic material, such as PC (polycarbonate).

[0075] In some embodiments, please refer to Figure 16The compression plate 100 has two first sidewalls 111 arranged opposite each other along the fifth direction Y, with the first sidewalls 111 forming a first angle with the fifth direction Y. In actual operation, the X-ray source 3 plate is positioned above the compression plate 100 and emits X-rays towards the lesion through the compression plate 100 at a certain angle relative to the fifth direction Y. If the compression plate 100 has a first angle with the fifth direction Y and the X-rays have a second angle with the fifth direction Y, and if the first angle is smaller than the second angle, the X-rays will need to pass through the first sidewalls 111 first and then through the bottom wall of the compression plate 100 before finally reaching the lesion. This double attenuation from passing through the compression plate 100 twice affects the identification of the lesion and causes ghosting.

[0076] It should be noted that the second included angle of the X-ray emitted by the X-ray source 3 towards the lesion is generally within a preset range. This value can be determined based on the position of the X-ray source 3 and the lesion. When designing the first angle of the first sidewall 111, it can be set according to the preset range of the second included angle. It is only necessary to make the first angle greater than the largest value in the second range.

[0077] In some other embodiments of this application, the elastic element 224 may not be provided in the mounting bracket 200. Instead, the limiting post 2232 may be directly used as the elastic element 224, and the limiting element 223 itself can extend and retract axially. For example, the limiting element 223 may be an elastic post or a structure similar to a glass ball screw.

[0078] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A compression device (1), characterized in that, The device includes a pressure plate (100) and a mounting bracket (200). The pressure plate (100) includes a limiting hole (121) and an insertion edge (131). The mounting bracket (200) is provided with a slot (214) and a limiting post (2232). The insertion edge (131) can be inserted into the slot (214), and the limiting post (2232) can be inserted into the limiting hole (121). The insertion edge (131) abuts against the inner wall of one side of the slot (214) to restrict the pressure plate (100) from rotating in a first direction (M1). The limiting post (2232) abuts against the inner wall of one side of the limiting hole (121) to restrict the pressure plate (100) from rotating in a second direction (M2). The limiting post (2232) can be pressed to exit the limiting hole (121). The first direction (M1) is opposite to the second direction (M2).

2. The compression device (1) as described in claim 1, characterized in that, The slot (214) and the limiting post (2232) are respectively located on opposite sides of the mounting bracket (200) along the third direction (Z); the insertion edge (131) abuts against the inner wall of one side of the slot (214) along the fourth direction (X), and the limiting post (2232) abuts against the inner wall of one side of the limiting hole (121) along the fourth direction (X); the fourth direction (X) and the third direction (Z) form an angle with each other.

3. The compression device (1) as described in claim 2, characterized in that, The pressure plate (100) includes a pressure body (110) and a first limiting part (120) and a second limiting part (130) respectively formed on the pressure body (110). The first limiting part (120) and the second limiting part (130) are opposite to each other and spaced apart. The limiting hole (121) is formed on the first limiting part (120), and the insertion edge (131) is formed on the second limiting part (130). The pressure body (110), the first limiting part (120) and the second limiting part (130) are at least partially in contact with the mounting bracket (200).

4. The compression device (1) as described in claim 3, characterized in that, The second limiting part (130) is provided with a protrusion (132), the protrusion (132) has a first limiting surface (1321), the mounting bracket (200) is recessed with a limiting groove (226) on the side away from the limiting post (2232), the limiting groove (226) has a second limiting surface (2261), and the first limiting surface (1321) and the second limiting surface (2261) can abut against each other along the third direction (Z).

5. The compression device (1) as claimed in claim 1, characterized in that, The mounting bracket (200) has a first arcuate surface (227), and the pressure plate (100) has a second arcuate surface (122). The first arcuate surface (227) and the second arcuate surface (122) are guided to guide the pressure plate (100) to rotate relative to the mounting bracket (200).

6. The compression device (1) as claimed in claim 1, characterized in that, The pressing plate (100) also has a first abutting surface (123), and the limiting post (2232) has a second abutting surface (2233). The second abutting surface (2233) is inclined relative to the axial direction of the limiting post (2232). When the pressing plate (100) rotates, the first abutting surface (123) and the second abutting surface (2233) abut against each other to press down the limiting post (2232) until the limiting post (2232) is inserted into the limiting hole (121).

7. The compression device (1) as claimed in any one of claims 1 to 6, characterized in that, The mounting bracket (200) is provided with an elastic element (224), which abuts against the limiting post (2232) along the axial direction of the limiting post (2232); Alternatively, the limiting post (2232) may be an elastic structure.

8. The compression device (1) as claimed in any one of claims 1 to 6, characterized in that, The mounting bracket (200) is provided with a limiting member (223) and an elastic member (224) abutting against the limiting member (223); the limiting member (223) includes a pressing part (2231) and the limiting post (2232); the pressing plate (100) has a relief groove (124) that avoids the pressing part (2231); pressing the pressing part (2231) causes the limiting post (2232) to disengage from the limiting hole (121); And / or, the mounting bracket (200) includes a frame (210) and a connector (220) mounted on the frame (210), the limiting post (2232) is mounted on the connector (220), and the slot (214) is formed in the frame (210).

9. The pressing device (1) as claimed in any one of claims 1 to 6, characterized in that, The pressure plate (100) is made of plastic material; the pressure plate (100) has two opposing first sidewalls (111) along the fifth direction (Y), and the first sidewalls (111) have a first angle with the fifth direction (Y).

10. A mammary gland machine, characterized in that, It includes a support (2) and an X-ray source (3), a detector (4) mounted on the support (2) and a compression device (1) as claimed in any one of claims 1 to 9, the compression device (1) being located below the X-ray source (3) and above the detector (4).

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