Die body and imaging test system

Abstract

The utility model relates to a die body and an imaging test system, the die body comprises a shell and a simulation organ, and the simulation organ is slidably connected with the shell. According to the mold body, the organ of a patient is simulated through the simulated organ, the simulated organ and the partition piece are arranged in the containing cavity of the shell, so that the containing cavity of the shell is divided into the first cavity and the second cavity, the first cavity is filled with liquid, the second cavity is filled with air, and the hydraulic pump drives the liquid in the first cavity to move; therefore, the simulated organ is driven to move, and human body organ movement is simulated. According to the die body, the hydraulic pump is adopted to drive liquid, and then the simulated organ is driven to move. Compared with existing motor driving, the die body is compatible with imaging equipment such as nuclear magnetic resonance equipment, positron emission nuclear magnetic resonance equipment and computed tomography equipment, interference on the imaging equipment is low, and the imaging result and the imaging accuracy of the imaging equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a phantom and an imaging test system. Background Art

[0002] During radiotherapy and medical imaging, a patient's respiratory motion can affect image quality. Respiratory motion can cause displacement of the lungs and surrounding organs, such as the pancreas and liver, as well as tumors in these areas, with the amplitude of movement reaching up to 3 cm. Phantoms are often used to simulate human organs to assess the impact of a patient's respiratory motion on radiotherapy.

[0003] Existing phantoms generally utilize motor-driven structures, demagnetizing the entire drive architecture to achieve MRI compatibility. However, because motor-driven drivers must meet mechanical motion precision requirements, the motors are typically placed relatively close to the driven components. The biggest drawback of this arrangement is the potential for noise interference with MRI imaging. However, the use of a Faraday cage for shielding can introduce eddy currents during MRI imaging sequences. Furthermore, the requirements for electric drive necessitate filtering of the electrical circuit. These factors collectively contribute to additional interference in MRI systems compared to actual biological imaging processes. Utility Model Content

[0004] Based on this, it is necessary to provide a phantom and imaging test system to address the problem of magnetic resonance imaging (MRI) imaging accuracy.

[0005] A phantom, comprising:

[0006] a housing; and

[0007] A simulated organ is slidably connected to the shell.

[0008] In one embodiment, one of the shell and the simulated organ is provided with a slider, and the other is provided with a slide groove, and the slide groove and the slider are in sliding engagement.

[0009] In one embodiment, a measuring piece is provided on the slide groove, and the measuring piece is used to measure the sliding distance of the slider.

[0010] In one embodiment, the simulated organ and / or the housing is filled with a liquid, and the liquid is capable of being in fluid communication with a hydraulic pump and driven by the hydraulic pump.

[0011] In one embodiment, the hydraulic pump is connected to the simulated organ and / or the housing through a liquid pipeline. A first detector is provided on the liquid pipeline, and the first detector is used to detect the flow rate of the liquid flowing through the liquid pipeline.

[0012] In one embodiment, the hydraulic pump is a piston hydraulic pump, and when the hydraulic pump drives the liquid to move, the piston of the hydraulic pump is configured to extend or shorten; and

[0013] The mold body further includes a third detector, and the third detector is used to detect the telescopic size of the piston.

[0014] In one embodiment, the method further comprises: a partition connected between the outer wall of the simulated organ and the inner wall of the shell.

[0015] In one embodiment, the device further comprises a probe, which is detachably inserted through the shell and extends into the interior of the simulated organ.

[0016] In one embodiment, a limiting groove is provided on the simulated organ, and the probe can be located in the limiting groove.

[0017] In one embodiment, the simulated organ is detachably disposed in the housing.

[0018] The present application also provides an imaging test system, comprising:

[0019] The phantom according to any one of the above items;

[0020] a hydraulic pump, the hydraulic pump being in communication with the mold body; and

[0021] An imaging device, wherein the phantom is arranged in the imaging device.

[0022] The phantom simulates the patient's organs by simulating organs. A simulated organ and a partition are provided in the housing cavity of the shell, thereby dividing the housing cavity of the shell into a first cavity and a second cavity. The first cavity is filled with liquid, and the second cavity is filled with air. A hydraulic pump drives the movement of the liquid in the first cavity, thereby driving the movement of the simulated organ, thereby simulating the movement of human organs. The phantom provided by the present application uses a hydraulic pump to drive the liquid, thereby driving the movement of the simulated organ. Compared with existing motor drives, the phantom of the present application is compatible with imaging devices such as nuclear magnetic resonance equipment, positron emission magnetic resonance equipment, and computed tomography equipment, and has low interference with the imaging equipment, thereby improving the imaging results and imaging accuracy of the imaging equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the structure of the imaging test system provided in an embodiment of the present application.

[0024] Figure 2 A schematic structural diagram of the first model provided in an embodiment of the present application.

[0025] Figure 3 A schematic structural diagram of the second phantom provided in an embodiment of the present application.

[0026] In the picture:

[0027] 100. Hydraulic pump; 110. Liquid pipeline;

[0028] 200, first mold body; 210, first shell; 211, first cavity; 212, second cavity; 220, first simulated organ; 230, partition; 240, air valve;

[0029] 300, probe;

[0030] 400, second phantom; 410, second simulated organ; 420, third simulated organ; 430, second shell;

[0031] 500. Verify pipeline;

[0032] 600, Scanning Room; 610, Imaging Equipment; 620, Hospital Bed;

[0033] 700, operation room;

[0034] 800, controller; 810, display screen;

[0035] 900. Power supply. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0038] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0039] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0042] like Figures 1 to 2 As shown, as a non-limiting example of a phantom, the first phantom 200 includes a first housing 210 and a first simulated organ 220. Optionally, the first phantom 200 may further include two partitions 230. The first simulated organ 220 is detachably disposed within the first housing 210, for example, within the housing cavity enclosed by the first housing 210. The first simulated organ 220 can have any shape and be made of any material. For example, the shape of the first simulated organ 220 can be similar to that of a real organ, and the properties of the material comprising the first simulated organ 220 can be similar to those of organ tissue. For example, the shape of the first simulated organ 220 can be similar to the outer contour of a combination of real organs, or similar to the outer contour of a real organ and its surrounding tissue. The partition 230 can be connected between the outer wall of the first simulated organ 220 and the inner wall of the first housing 210. For example, one end of the partition 230 is connected to the first simulated organ 220, and the other end is connected to the wall of the housing cavity. The first simulated organ 220 and two partitions 230 can separate the housing 210's receiving chamber into a first chamber 211 and a second chamber 212. The first chamber 211 is filled with liquid, while the second chamber 212 is filled with air. The hydraulic pump 100 can drive the liquid in the first chamber 211 to move the first simulated organ 220. However, this is not a limitation; the first phantom 200 can include one or more partitions 230, forming more than one first chamber 211 and second chamber 212. The first phantom 200 can further include a probe 300 that can be removably inserted through the first housing 210 (e.g., through the second chamber 212) and into the interior of the first simulated organ 220. The liquid can be, for example, a simulated liquid used to simulate real body fluids, but can also be other types of liquids, such as water or real body fluids.

[0043] The first phantom 200 simulates a patient's organ through a first simulated organ 220. The first simulated organ 220 and a partition 230 are provided in the accommodating chamber of the first shell 210, thereby dividing the accommodating chamber of the first shell 210 into a first chamber 211 and a second chamber 212. The first chamber 211 is filled with liquid, and the second chamber 212 is filled with air. The hydraulic pump 100 drives the liquid in the first chamber 211 to move, thereby driving the first simulated organ 220 to move, thereby simulating the movement of human organs. The phantom provided in the present application uses a hydraulic pump 100 to drive the liquid, thereby driving the first simulated organ 220 to move. Compared with existing motor drives, the phantom of the present application is compatible with imaging devices 610 such as nuclear magnetic resonance equipment, positron emission magnetic resonance equipment, and computed tomography equipment, and has low interference with the imaging device 610, thereby improving the imaging results and imaging accuracy of the imaging device 610.

[0044] If the separator 230 were elastic, it would provide a thrust to the first simulated organ 220 when it moved, thereby affecting the simulation effect of the first simulated organ 220. Therefore, to address the above technical issues, the separator 230 is a non-elastic soft membrane. By making the separator 230 of a non-elastic material, the force between the separator 230 and the first simulated organ 220 is reduced.

[0045] In some embodiments, the first simulated organ 220 is provided with a limiting groove, and the probe 300 can be positioned in the limiting groove. By providing the limiting groove on the first simulated organ 220, the installation position of the probe 300 is limited, thereby improving the accuracy of the simulated detection.

[0046] Specifically, the limiting groove is disposed inside the first mold body 200 , and the limiting groove is communicated with the second cavity 212 .

[0047] More specifically, the probe 300 includes a detection part, a handle part and a wiring harness part connected in sequence. The probe 300 passes through the second cavity 212 and extends into the limiting groove, so as to be installed on the first simulated organ 220, that is, the detection part and the handle part of the probe 300 are located in the limiting groove, and the wiring harness is passed through the second cavity 212.

[0048] In some embodiments, as Figure 1 As shown, the hydraulic pump 100 is connected to the first chamber 211 via a liquid pipeline 110. A first detector is provided on the liquid pipeline 110 for detecting the flow rate of liquid flowing through the liquid pipeline 110. By connecting the hydraulic pump 100 and the first chamber 211 through the liquid pipeline 110, the hydraulic pump 100 operates to extract liquid from the first chamber 211 or to deliver liquid to the first chamber 211. By detecting the flow rate of liquid flowing through the liquid pipeline 110 through the first detector, the travel distance of the first simulated organ 220 can be calculated.

[0049] Specifically, the mold body further includes a liquid source, and the hydraulic pump 100 can transport the liquid in the liquid source to the first cavity 211 through the liquid pipeline 110 .

[0050] It should be noted that the hydraulic pump 100 draws liquid from the first chamber 211 through the liquid pipeline 110 to simulate human exhalation, and the hydraulic pump 100 discharges liquid into the first chamber 211 through the liquid pipeline 110 to simulate human inhalation.

[0051] It is understandable that the human body does not exhale and inhale at the same time, so the hydraulic pump 100 does not suck the liquid in the first chamber 211 and pump the liquid into the first chamber 211 at the same time. Therefore, only setting up the liquid pipeline 110 can simulate human breathing.

[0052] In some embodiments, as Figure 1 As shown, the phantom further includes a collection box, a verification line 500, and a second detector. The collection box is connected to the first cavity 211 via the verification line 500, allowing liquid in the first cavity 211 to flow out to the collection box through the verification line 500. The verification line 500 is provided with a second detector for detecting the flow rate of liquid flowing through the verification line 500. A verification line 500 is also provided connecting the first cavity 211 and the collection box, which is used to collect liquid flowing out of the first cavity 211. The second detector is provided on the verification line 500 to detect the flow rate of liquid flowing through the verification line 500, thereby calculating the travel distance of the first simulated organ 220 within the first housing 210.

[0053] It should be noted that in the above embodiment, the hydraulic pump 100 discharges liquid from the liquid source into the first chamber 211 through the liquid pipeline 110, and the liquid in the first chamber 211 flows out to the collection tank through the verification pipeline 500. The distance traveled by the first simulated organ 220 within the first housing 210 can be calculated by measuring flow rate using either the first detector provided on the liquid pipeline 110 or the second detector provided on the verification pipeline 500.

[0054] In some embodiments, the hydraulic pump 100 is a piston-type hydraulic pump 100. When the hydraulic pump 100 drives the fluid in the first chamber 211, the piston of the hydraulic pump 100 is configured to extend or contract. The phantom further includes a third detector for detecting the extension and contraction of the piston. By detecting the extension and contraction of the piston of the hydraulic pump 100, the distance moved by the first simulated organ 220 within the first housing 210 can be indirectly calculated.

[0055] In some embodiments, the first housing 210 and the first simulated organ 220 are slidably connected. One of the first housing 210 and the first simulated organ 220 is provided with a slider, and the other is provided with a chute. The chute and the slider slidably engage. By providing the chute and the slider, the slider slides along the chute, thereby defining the movement trajectory of the slider, and thus the movement trajectory of the first simulated organ 220.

[0056] Specifically, the sliding groove is provided on the cavity wall of the accommodating cavity of the first shell 210 , and the sliding block is provided on the outer wall of the first simulated organ 220 .

[0057] In some embodiments, a measuring member is provided on the slideway, and the measuring member is used to measure the sliding distance of the slider. The sliding distance of the slider is measured by the measuring member, thereby detecting the movement distance of the first simulated organ 220.

[0058] In some embodiments, the sliding groove and slider structure can be replaced with a sliding rail and pulley structure. A rail is provided on one of the first housing 210 and the first simulated organ 220, and a pulley is provided on the other. The rail and pulley slide together. By providing a pulley slider, the pulley slides along the rail, thereby defining the movement trajectory of the pulley, and thus the movement trajectory of the first simulated organ 220.

[0059] Specifically, the measuring member may be provided on the slide rail to measure the sliding distance of the pulley.

[0060] In summary, there are four ways to detect the moving distance of the first simulated organ 220:

[0061] The first method is to detect the flow rate of the liquid flowing through the liquid pipeline 110 by a first detector, thereby calculating the movement distance of the first simulated organ 220 .

[0062] The second method is to detect the flow rate of the liquid flowing through the verification pipeline 500 by a second detector, thereby calculating the moving distance of the first simulated organ 220 in the first housing 210 .

[0063] The third method is to detect the extension and contraction length of the piston of the hydraulic pump 100 by a third detection member, thereby calculating the movement distance of the first simulation organ 220 in the first housing 210 .

[0064] The fourth method is to measure the sliding distance of the slider by a measuring member, thereby detecting the moving distance of the first simulated organ 220 .

[0065] Specifically, the first detector, the second detector, the third detector and the measuring meter can be displacement sensors, infrared sensors, Hall sensors, photoelectric sensors, grating scale components, etc., as long as they can measure the moving distance.

[0066] In some embodiments, as Figure 1 and Figure 2 As shown, the first mold body 200 also includes an air valve 240 mounted on the first housing 210. The air valve 240 is used to connect the second cavity 212 with the outside world. By providing the air valve 240 to connect the second cavity 212 with the outside world, when the first mold body 200 simulates human inhalation, that is, when the hydraulic pump 100 delivers liquid to the first cavity 211 through the liquid pipeline 110, the liquid in the first cavity 211 increases, pushing the first simulated organ 220 toward the second cavity 212, thereby squeezing the second cavity 212 and causing the air in the second cavity 212 to be discharged from the first mold body 200 through the air valve 240. When the first mold body 200 simulates human exhalation, that is, when the liquid in the first cavity 211 is discharged to the outside of the first cavity 211, the liquid in the first cavity 211 decreases, pushing the first simulated organ 220 away from the second cavity 212, allowing external air to flow into the second cavity 212 through the air valve 240.

[0067] like Figure 3 FIG2 shows another non-limiting example of a phantom, namely a second phantom 400. The second phantom 400 may include the first phantom 200, the second simulated organ 410, the third simulated organ 420, and the second housing 430 described above. The first phantom 200 may be disposed within the second housing 430 and detachably connected thereto. By providing the second housing 430 to simulate the human body, the first phantom 200 is disposed within the second housing 430. During simulated diagnosis, the end of the fluid line 110 facing away from the hydraulic pump 100 passes through the second housing 430 and extends into the first cavity 211 of the first housing 210 of the first phantom 200. Furthermore, as a non-limiting example, the first phantom 200 disposed in the second phantom 400 may be replaced by the first simulated organ 220. That is, the second phantom 400 does not include any components of the first phantom 200 other than the first simulated organ 220. As another non-limiting example, the second simulated organ 410 and the third simulated organ 420 may also be replaced by phantoms having a structure similar to that of the first phantom 200. In addition, the second phantom 400 may include more or fewer phantoms and / or simulated organs. Figure 1 The first phantom 200 in FIG. 1 is used for the imaging process.

[0068] like Figure 3As shown, in the second phantom 400, the second simulated organ 410 and the third simulated organ 420 are both disposed within the second housing 430 and are located at different positions. Any two of the first phantom 200, the second simulated organ 410, and the third simulated organ 420 can be detachably connected. By disposing the second simulated organ 410 and the third simulated organ 420 and detachably connecting any two of the first phantom 200, the second simulated organ 410, and the third simulated organ 420, when performing a simulated diagnosis, the effect of the first phantom 200 on the second simulated organ 410 and the third simulated organ 420 can be simulated.

[0069] Specifically, the second simulated organ 410 and the third simulated organ 420 are both detachably connected to the second housing 430 .

[0070] In some embodiments, the structures of the second simulated organ 410 and the third simulated organ 420 are the same as that of the first phantom 200 .

[0071] In some embodiments, the structures of the second simulated organ 410 and the third simulated organ 420 may be different from the structure of the first phantom 200 , and the structure may be selected based on actual needs.

[0072] As an example, the present application provides an imaging test system, such as Figures 1 to 3 As shown, the imaging test system, including the aforementioned phantoms, can be installed in a scanning room 600 and an operating room 700. An imaging device 610 is installed in the scanning room 600, and the first phantom 200 is installed in the imaging device 610. A hydraulic pump 100 is installed in the operating room 700 and connected to the first phantom 200. The hydraulic pump 100 is installed in the operating room 700, while the imaging device 610 is installed in the scanning room. The first phantom 200 is installed in the imaging device 610. The first phantom 200 and the hydraulic pump 100 are connected via a fluid line 110. The hydraulic pump 100 drives the first phantom 200 to move, thereby simulating human exhalation and inhalation. The imaging device 610 then diagnoses the first phantom 200 and obtains a diagnosis result.

[0073] Specifically, if Figure 1 As shown, a bed 620 is provided in the scanning room 600 , and the first phantom 200 is provided on the bed 620 .

[0074] In some embodiments, as Figure 1 As shown, the imaging test system further includes a controller 800 and a display screen 810 . The display screen 810 and the hydraulic pump 100 are both electrically connected to the controller 800 . The controller 800 controls the start and stop of the hydraulic pump 100 and displays the diagnostic results and related data on the display screen 810 .

[0075] In some embodiments, as Figure 1As shown, the imaging test system further includes a power supply 900 , which is electrically connected to the controller 800 , and is used to supply power to the controller 800 .

[0076] In the imaging test system provided herein, a first phantom 200 simulates a human organ and is disposed within an imaging device 610. A hydraulic pump 100 is connected to the first phantom 200, and the hydraulic pump 100 drives the first phantom 200 to simulate human breathing. The imaging device 610 detects the first phantom 200 and outputs relevant images and data on a display screen 810.

[0077] For example, in a treatment plan proposed by a doctor, the chemotherapy dose at first phantom 200 is expected to be a first preset value, but the actual chemotherapy dose can only reach a second preset value, where the second preset value is less than the first preset value. Therefore, the current treatment plan has not achieved the expected effect, and the current treatment plan needs to be adjusted so that the final treatment plan can achieve the expected effect. By using the imaging test system, first phantom 200 simulates a human organ, and imaging device 610 displays images, the treatment plan can be adjusted so that the adjusted chemotherapy dose at first phantom 200 reaches the first preset value. Using the imaging test system proposed by the application can improve the accuracy of the treatment plan proposed by the doctor.

[0078] In some embodiments, the second phantom 400 can be set in the imaging device 610 for detection, that is, the second shell 430 and the first phantom 200, the second simulated organ 410 and the third simulated organ 420 set in the second shell 430 are all set in the imaging device 610 for detection, so that the impact of the movement of the first phantom 200 on the second simulated organ 410 and the third simulated organ 420 can be judged based on the image information of the display screen 810.

[0079] In summary, the imaging test system provided by this application has the following advantages:

[0080] 1) By providing a hydraulic pump 100 to drive the liquid within the first chamber 211, remote hydraulic actuation achieves a fully magnetic resonance compatible environment, while eliminating any eddy current effects caused by metal components in the magnetic field. Simultaneously, the simulated body fluid is directly applied to the hydraulic actuation, allowing the hydraulic fluid to be directly perfused into the target simulated organ to simulate the surrounding environment of the organ.

[0081] 2) By setting the slide rail or chute as a self-arrangeable soft rail design, the movement direction of the simulated target organs and simulated organs can be adjusted automatically, and can be curved in addition to linear movement. Moreover, by adding more dimensions of movable slide rails, the movement dimensions of the simulated organs can be increased, and rotational movement can be achieved.

[0082] 3) The removable design of the first phantom 200, second simulated organ 410, third simulated organ 420, and second shell 430 meets the needs of treatment plan verification for tumors in various locations during actual use. Furthermore, specific phantom types can be switched to suit different verification scenarios. For example, a rigid phantom can be selected when the planning advantages of rigid motion are important, while a soft shell material can be selected when the plan changes caused by organ deformation are of concern.

[0083] 4) Overall system information is readable. The movement distance of the first simulated organ 220 (or first phantom 200 or second phantom 400) can be obtained through four types of feedback: first, calculation based on feedback data from the first detector; second, calculation based on feedback data from the second detector; third, the relative position of the piston of the liquid pump outside the scanning area of ​​the second measuring device. This allows real-time inference of the current position of the target organ, facilitating binning of the motion cycle; and fourth, the movement distance of the first simulated organ 220 is measured by the sliding distance of the slider detected by the first measuring device. Furthermore, the phantom can be used as a validation phantom for flow sequences. (Note: 4D Flow MRI uses high-resolution three-dimensional imaging of in vivo fluids (e.g., blood) combined with time-series data acquisition to obtain complete three-dimensional blood flow velocity and flow direction information in a single scan. This technology enables real-time, non-invasive observation and quantification of hemodynamic parameters, providing assessment of pathological conditions such as hemodynamic abnormalities, cardiovascular disease, and congenital heart disease.)

[0084] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A phantom, characterized in that: include: Housing (210, 430); as well as A simulated organ (220, 410, 420), wherein the simulated organ (220, 410, 420) is slidably connected to the housing (430, 210); The simulated organ (220, 410, 420) and / or the housing (210, 430) is filled with liquid, and the liquid can be in fluid communication with the hydraulic pump (100) and driven by the hydraulic pump (100).

2. The phantom according to claim 1, wherein One of the shell (210, 430) and the simulated organ (220, 410, 420) is provided with a slider, and the other is provided with a slide groove, and the slide groove and the slider are in sliding engagement.

3. The phantom according to claim 2, wherein: A measuring piece is provided on the sliding groove, and the measuring piece is used to measure the sliding distance of the sliding block.

4. The phantom according to claim 2, wherein: The slide chute is configured as a self-arranging soft rail design.

5. The phantom according to claim 4, wherein: The simulated organ (220, 410, 420) is detachably arranged in the shell (430, 210).

6. The phantom according to claim 1, wherein: The hydraulic pump (100) is connected to the simulated organ (220, 410, 420) and / or the housing (210, 430) via a liquid pipeline (110). A first detector is provided on the liquid pipeline (110), and the first detector is used to detect the flow rate of the liquid flowing through the liquid pipeline (110).

7. The phantom according to claim 1, wherein The hydraulic pump (100) is a piston hydraulic pump, and when the hydraulic pump (100) drives the liquid to move, the piston of the hydraulic pump (100) is configured to extend or shorten; and The mold body further includes a third detector, and the third detector is used to detect the telescopic size of the piston.

8. The phantom according to claim 1, wherein: Also includes: A partition (230) is connected between the outer wall of the simulated organ (220) and the inner wall of the shell (210, 430).

9. The phantom according to claim 1, wherein: Also includes : A probe (300), wherein the probe (300) is detachably inserted through the shell (210, 430) and extends into the interior of the simulated organ (220, 410, 420).

10. The phantom according to claim 9, wherein: A limiting groove is provided on the simulated organ (220), and the probe (300) can be located in the limiting groove.

11. An imaging test system, characterized in that: include: The phantom according to any one of claims 1 to 10; a hydraulic pump (100), the hydraulic pump (100) being in communication with the mold body; as well as An imaging device (610), wherein the phantom is arranged in the imaging device (610).

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