Detector supporting device, medical imaging system and medical imaging method

Abstract

The embodiment of the invention provides a detector supporting device, a medical imaging system and a medical imaging method, and the detector supporting device comprises a support frame which is used for bearing a detector; the sliding supporting part is used for vertically supporting the support frame on the edge of a bed board assembly of the medical imaging system and can slide in the direction of the edge of the bed board assembly.

Description

Technical Field

[0001] This application relates to the field of medical imaging technology, and in particular to a detector support device, a medical imaging system, and a medical imaging method. Background Technology

[0002] In a medical imaging system, X-rays emitted from an X-ray source are directed at the subject and received by a detector, which is a matrix of discrete elements (e.g., pixels), after penetrating the subject. The detector elements are read out to generate an output signal based on the amount or intensity of radiation impacting each pixel region. This signal is then processed to produce a medical image of the subject, which can be displayed on a display device of the medical imaging system.

[0003] X-ray imaging systems currently include exposure modes where the detector's position can be freely adjusted. In this mode, the detector is supported by a support frame and moves independently of the bed board or chest X-ray frame, allowing it to be used without a grid. This mode is particularly necessary for scenarios involving lateral imaging of patients with limited mobility and for imaging scenarios requiring multi-image stitching technology. However, the movement and positioning of existing detector supports still rely on the operator's labor and experience, making operation very inconvenient, and potentially affecting image quality due to inaccurate support frame positioning. Summary of the Invention

[0004] This application provides a detector support device, a medical imaging system, and a medical imaging method.

[0005] According to one aspect of the embodiments of this application, a detector support device is provided, the device comprising:

[0006] Support frame, which is used to support the detector;

[0007] A sliding support is provided for vertically supporting the support frame on the edge of the bed board assembly of the medical imaging system and is capable of sliding along the edge of the bed board assembly.

[0008] According to one aspect of the embodiments of this application, a medical imaging system is provided, comprising:

[0009] Bed board assembly;

[0010] Detector; and

[0011] The detector support device described in the preceding part.

[0012] According to one aspect of the embodiments of this application, a medical imaging method is provided, the method comprising:

[0013] The detector support device described above carries the detector to slide to multiple different positions along the edge of the bed board assembly;

[0014] Sub-medical images of the detected object are acquired at the multiple locations respectively; and

[0015] A medical image is obtained by stitching together multiple sub-medical images.

[0016] Referring to the following description and accompanying drawings, specific implementation methods of the embodiments of this application are disclosed in detail, indicating how the principles of the embodiments of this application can be adopted. It should be understood that the implementation methods of this application are not limited in scope. Within the spirit and scope of the appended claims, the implementation methods of this application include many changes, modifications, and equivalents. Attached Figure Description

[0017] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other implementation methods based on these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of a medical imaging system according to an embodiment of this application;

[0019] Figure 2 and Figure 3 This is a schematic diagram of the detector support device according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the detector support device installed on the side edge of the bed board assembly according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the support frame and sliding support parts according to an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the markings in an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of a medical imaging method according to an embodiment of this application;

[0024] Figure 8 This is a schematic diagram of the bracket according to an embodiment of this application;

[0025] Figure 9 This is a schematic diagram of the transmission unit according to an embodiment of this application;

[0026] Figure 10 This is a schematic diagram of the bracket and transmission part assembled according to an embodiment of this application;

[0027] Figure 11This is a schematic diagram of the detector support device installed on the side edge of the bed board assembly according to an embodiment of this application;

[0028] Figure 12 This is a schematic diagram of a medical imaging system according to an embodiment of this application. Detailed Implementation

[0029] Referring to the accompanying drawings, the foregoing and other features of the embodiments of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of the embodiments of this application can be adopted. It should be understood that this application is not limited to the described embodiments; rather, the embodiments of this application include all modifications, variations, and equivalents falling within the scope of the appended claims.

[0030] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies. In the embodiments of this application, terms such as "connected," "linked," and "coupled" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0031] In the embodiments of this application, the singular forms "a," "the," etc., including the plural forms, should be broadly understood as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms, unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0032] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. The term "comprising / including" as used herein means the presence of a feature, integral, step, or component, but does not exclude the presence or addition of one or more other features, integrals, steps, or components.

[0033] Figure 1 This is a medical imaging system 100 according to an embodiment of this application. For example... Figure 1As shown, the medical imaging system 100 includes a suspension device 110, a wall stand device 120, and a test bed device 130 disposed in the scanning room 101, and a control device 150 disposed in the control room 102. The suspension device 110 includes a longitudinal guide rail 111, a transverse guide rail 112, a telescopic cylinder 113, a trolley 114, and an X-ray tube assembly 115.

[0034] Although some embodiments of this application are described based on a suspended X-ray imaging system, the embodiments of this application are not intended to be limiting.

[0035] For ease of description, in this application, the x-axis, y-axis and z-axis are defined as follows: the x-axis and y-axis are located in the horizontal plane and are perpendicular to each other, and the z-axis is perpendicular to the horizontal plane. Specifically, the direction of the longitudinal guide rail 111 is defined as the x-axis, the direction of the transverse guide rail 112 is defined as the y-axis, and the extension direction of the telescopic cylinder 113 is defined as the z-axis, which is the vertical direction.

[0036] The longitudinal guide rail 111 and the transverse guide rail 112 are arranged vertically, wherein the longitudinal guide rail 111 is mounted on the ceiling, and the transverse guide rail 112 is mounted on the longitudinal guide rail 111. The telescopic cylinder 113 is used to carry the X-ray tube assembly 115.

[0037] A trolley 114 is positioned between the transverse guide rail 112 and the telescopic cylinder 113. The trolley 114 may include a rotating shaft, a motor, and a drum. The motor drives the drum to rotate around the rotating shaft, thereby causing the telescopic cylinder 113 to move along the z-axis and / or slide relative to the transverse guide rail. The trolley 114 can slide relative to the transverse guide rail 112, meaning it can drive the telescopic cylinder 113 and / or the X-ray tube assembly 115 to move along the y-axis. Furthermore, the transverse guide rail 112 can slide relative to the longitudinal guide rail 111, thereby causing the telescopic cylinder 113 and / or the X-ray tube assembly 115 to move along the x-axis.

[0038] The telescopic cylinder 113 includes multiple cylindrical sections with different inner diameters, which can be sequentially fitted into the upper cylinder from bottom to top to achieve telescopic movement. The telescopic cylinder 113 is telescopic (or movable) in the vertical direction, that is, the telescopic cylinder 113 can drive the X-ray tube assembly to move along the z-axis. The lower end of the telescopic cylinder 113 is also provided with a rotating part, which can drive the X-ray tube assembly 115 to rotate.

[0039] The X-ray tube assembly 115 includes an X-ray tube that generates X-rays and projects them onto the patient's intended region of interest (ROI). Specifically, the X-ray tube can be positioned adjacent to a collimator used to align the X-rays to the patient's intended ROI. At least a portion of the X-rays can be attenuated by the patient and can be incident on detectors 121 / 131. Additionally, not shown, the X-ray imaging system may also include a flexible, handheld detector for imaging certain joints or infants.

[0040] The suspension device 110 further includes a collimator 117, which is typically mounted below the X-ray tube. X-rays emitted from the X-ray tube pass through the opening of the collimator 117 and irradiate the subject. The size of the opening of the collimator 117 determines the irradiation range of the X-rays, i.e., the size of the field of view (FOV). The lateral position of the X-ray tube and the collimator 117 determines the position of the FOV on the subject. It is well known that X-rays are harmful to the human body; therefore, it is necessary to control the X-rays to irradiate only the areas of the subject to be examined, i.e., the region of interest (ROI).

[0041] The suspension device 110 further includes a X-ray tube control device (console) 116, which is mounted on the X-ray tube assembly. The X-ray tube control device 116 includes a user interface such as a display screen and control buttons for pre-shooting preparations, such as patient selection, protocol selection, and positioning.

[0042] The movement of the suspension device 110 includes the movement of the X-ray tube assembly along the x-axis, y-axis, and z-axis, as well as the rotation of the X-ray tube assembly in the horizontal plane (rotation axis parallel to or coincident with the z-axis) and the vertical plane (rotation axis parallel to the y-axis). In these movements, a motor typically drives the rotating shaft to rotate the corresponding components, thereby achieving the corresponding movement or rotation. The corresponding control components are generally installed within the trolley 114. The X-ray imaging unit further includes a motion control unit (not shown in the figure), which can control the aforementioned movements of the suspension device 110. Furthermore, the motion control unit can receive control signals to control the corresponding components to perform corresponding movements.

[0043] The support frame 120 includes a first detector assembly 121, a column (e.g., a chest X-ray holder) 122, and a connecting portion 123. The connecting portion 123 includes a support arm perpendicularly connected to the height direction of the column 122 and a rotating bracket mounted on the support arm. The first detector assembly 121 is mounted on the rotating bracket. The support frame 120 further includes a detector driving device disposed between the rotating bracket and the first detector assembly 121. Driven by the detector driving device, the detector assembly 121 moves along a direction parallel to the height direction of the column 122 on the plane supported by the rotating bracket. The first detector assembly 121 can also further rotate relative to the support arm, forming a certain angle with the column. The first detector assembly 121 has a plate-like structure with a variable orientation, so that the X-ray incident surface can be made vertical or horizontal depending on the incident direction of the X-rays.

[0044] The detection bed device 130 includes a bed board assembly 132 and a second detector assembly 131. The second detector assembly 131 includes a moving component and a receiving portion. The moving component drives the receiving portion (e.g., a tray) and the detector panel below the bed board assembly 132 to move longitudinally along the bed board. The receiving portion can accommodate and support the detector panel. Specifically, the receiving range of the detector panel can extend longitudinally from one side of the bed board to the other. Specifically, the moving component includes a timing belt, a guide rail, and a motor. The guide rail is arranged longitudinally, and the receiving portion (e.g., the tray) can move relative to the guide rail. One end of the timing belt is fixed to the receiving portion (e.g., the tray), and the other end is connected to the motor, so that the motor controls the timing belt to drive the receiving portion (e.g., the tray) to move, thereby causing the receiving portion (e.g., the tray) and the detector to move longitudinally. Through the above-described movement configuration, the detector panel can cover the entire bed board area, enabling imaging of any position of the object being inspected, or image stitching of multiple positions.

[0045] Optionally, the detector panel in the second detector assembly 131 can also be detached from the second detector assembly 131 and placed on a separate stand, or held by the subject for use in an exposure mode where the detector position can be freely adjusted. The selection or use of the first detector assembly 121 and the second detector assembly 131 can be determined based on the patient's imaging site and / or imaging protocol, or based on the subject's position obtained from the camera image. Figure 1 Only one example diagram of the column and testing bed is shown. Those skilled in the art should understand that any form or arrangement of the column and / or testing bed can be selected, or only the column can be installed. The column and / or testing bed are not limited to the overall scheme of this application.

[0046] In some embodiments, the control device 150 may include a source controller and a detector controller. The source controller commands the X-ray source to emit X-rays for image exposure. The detector controller selects a suitable detector from among multiple detectors and coordinates the control of various detector functions, such as automatically selecting the corresponding detector based on the subject's position or posture, or performing various signal processing and filtering functions, specifically for initial adjustment of dynamic range, interleaving of digital image data, etc. In some embodiments, the control device may provide power and timing signals for controlling the operation of the X-ray source and detector.

[0047] In some embodiments, the control device may also be configured to use digital signals to reconstruct one or more desired images and / or determine useful diagnostic information corresponding to the patient, wherein the control device may include one or more dedicated processors, graphics processing units, digital signal processors, microcomputers, microcontrollers, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other suitable processing devices.

[0048] Of course, medical imaging systems may also include other numbers, configurations, or forms of control devices. For example, control devices may be local (e.g., located in the same location as one or more medical imaging systems 100, such as within the same facility and / or the same local network); in other implementations, control devices may be remote and therefore accessible only via a remote connection (e.g., via the Internet or other available remote access technologies). In certain implementations, control devices may also be configured in a cloud-like manner and may be accessed and / or used in a manner substantially similar to accessing and using other cloud-based systems.

[0049] System 100 also includes a storage device (not shown) in which the processor can store digitized signals. For example, the storage device may include a hard disk drive, floppy disk drive, optical disc read / write drive, digital universal disk drive, flash memory drive, and / or solid-state memory. The storage device may also be integrated with the processor to efficiently utilize floor space and / or meet desired imaging requirements.

[0050] System 100 also includes an input device 160, which may include a keyboard, mouse, voice-activated control device, touch screen (or display device as described later), trackball, or any other suitable input device, etc., as a form of operator interface, through which the operator can input operation signals / control signals to the control device.

[0051] The system 100 also includes a display device 151 (e.g., a touch screen or display screen), which can be used to display an interface such as a list of subjects, subject positioning or exposure settings, and images of subjects.

[0052] In some embodiments, the medical imaging system may further include a camera device 140, which can capture images of the subject to obtain images containing the subject, such as a still image or a series of frames in a dynamic real-time video stream, for assisting in positioning and exposure settings, etc. The camera device may be mounted on a suspension device, such as on the side of the constrictor 117, but this embodiment is not intended to limit it.

[0053] The embodiments of this application are described in detail below.

[0054] This application provides a detector support device. Figure 2 and Figure 3 This is a schematic diagram of the detector support device according to an embodiment of this application, as shown below. Figure 2 and Figure 3 As shown, the device includes:

[0055] Support frame 201, which is used to support the detector;

[0056] The sliding support 202 is used to vertically support the support frame on the edge of the bed board assembly of the medical imaging system and is capable of sliding along the edge of the bed board assembly.

[0057] In some embodiments, the detector carried by the support frame 201 may be detached from the aforementioned second detector assembly 131 or first detector assembly 121. Alternatively, it may be a newly added detector that is different from the detector in the second detector assembly 131 or the first detector assembly 121, but this application embodiment is not intended to be limiting.

[0058] In some embodiments, the support frame 201 can be a three-sided frame. The support frame 201 includes an integrally formed first frame 2011, a second frame 2012, and a third frame 2013. The first frame 2011 and the second frame 2012 extend vertically to hold the sides of the detector panel. The first frame 2011 and the second frame 2012 are connected by the third frame 2013, which extends horizontally to hold the bottom edge of the detector panel. The length of the third frame 2013 can be the same as the length of the bottom edge of the detector panel. The first frame 2011, the second frame 2012, and the third frame can be U-shaped or C-shaped, and this embodiment is not intended to limit them.

[0059] In some embodiments, the sliding support 202 is fixed to the edge of the bed board assembly, but can slide along the edge direction of the bed board assembly and provide support force to vertically support the support frame on the edge of the bed board assembly of the medical imaging system. When the sliding support 202 slides, it drives the support frame to slide together along the edge direction of the bed board assembly. The edge direction of the bed board assembly can be one side in the length direction, but this embodiment of the application does not limit it.

[0060] In some embodiments, Figure 4 This is a schematic diagram of the sliding support 202 installed on the side edge of the bed board assembly according to an embodiment of this application, as shown. Figure 4 As shown, the bed board assembly 40 includes a bed board and a frame. The frame may have a groove 41 (side groove) along its length. This groove may be C-shaped and includes five inner sidewalls: A1, B1, C1, D1, and E1. A sliding support can be embedded in the side groove and slide within it. During installation, the sliding support can be pushed into the side groove from one end. After being pushed in, the inner sidewalls A1 and E1 prevent the sliding support from falling out of the side groove due to the C-shape of the groove.

[0061] In some embodiments, such as Figure 2 and 3 As shown, the sliding support 202 includes a sliding portion and a support portion. The support portion may include a support base 2021 and one or more load-bearing rollers 2022. The sliding portion may be composed of one or more guide rollers 2023. The support base 2021 can be used to connect to the third frame 2013. The load-bearing rollers 2022 are fixed on the support base 2021, and the axial direction of the load-bearing rollers is perpendicular to the plane containing the first and third frames. The guide rollers 2023 are fixed on the support base 2021, and the axial direction of the guide rollers is parallel to the extending direction of the first frame. Optionally, they can be evenly distributed on both sides of the load-bearing rollers 2022. After the support and sliding portions are pushed into the side groove, at least a portion of the circumference of the guide rollers contacts the inner sidewalls A1 and C1 of the groove 41, and at least a portion of the circumference of the load-bearing rollers contacts the inner sidewall D1 of the groove 41, to ensure that the sliding support 202 slides smoothly within the groove and to prevent the sliding support from falling out of the side groove.

[0062] In some embodiments, the sliding portion and the support portion may be symmetrically arranged at both ends of the third frame 2013 to maintain the balance of the support frame. For example, as Figure 2 and 3 As shown, two load-bearing rollers and four guide rollers can be respectively set at each end of the third frame 2013. The four guide rollers are symmetrically positioned above the right, below the right, above the left, and below the left of the two load-bearing rollers. The above is only an example illustration, and the embodiments of this application are not limited to the number and position of rollers.

[0063] The above embodiments are merely illustrative examples, and this application does not limit the structure of the sliding support 202. For example, a linear guide rail can also be provided on the edge of the bed board assembly, and the sliding support 202 can include a slider. The slider is fitted onto the guide rail to vertically support the support frame on the edge of the bed board assembly of the medical imaging system, and it can slide along the edge of the bed board assembly. Further examples are not provided here. Additionally, when the groove 41 is not a C-shaped groove, the sliding support function can also be achieved by adaptively modifying the structure of the sliding support. Furthermore... Figure 4 The example given is that the sliding support 202 is installed in the side groove of the bed board assembly. However, the sliding support 202 can also be installed at the bottom edge of the bed board assembly, etc. For example, the sliding support function can be achieved through the structure of the guide rail and slider mentioned above. These will not be described in detail here.

[0064] In some embodiments, in order to fix the distance between the sliding portion and the support portion on both sides of the third frame, the sliding support portion 202 may further include a connecting portion 2024, which is elongated and whose two ends are respectively fixed to the support bases 2021 on both sides.

[0065] In some embodiments, the sliding support 202 can slide along the edge of the bed board assembly under the action of the operator's pushing force. When it slides to a certain position and needs to be photographed, in order to avoid the change in position of the sliding support 202 causing a decrease in the quality of the photographed image, the sliding support also includes a locking part 2025 for preventing sliding and locking the position. The locking part 2025 can be a bolt. At least one end of the support base 2021 at both ends of the third frame 2013 can be provided with a through hole. The inner side of the through hole has a thread that matches the locking part 2025. When the locking part 2025 is screwed into the through hole and tightened, the edge of the locking part will press against the outer walls A2 and E2 of the groove 41, thereby achieving the effect of preventing sliding and locking the position. Optionally, the edge of the locking part can be provided with a wear-resistant material or texture to further improve the effect of preventing sliding and locking the position, and to prevent damage to the edge of the bed board assembly.

[0066] In some embodiments, the bracket frame 201 and the sliding support 202 may be integrally formed, or the bracket frame 201 may be detachably mounted on the sliding support 202. Figure 5 This is an exploded view of the support frame 201 and the sliding support portion 202 according to an embodiment of this application, as shown below. Figure 5As shown, the support frame 201 includes a first engaging portion 501, and the sliding support portion 202 includes a second engaging portion 502. The support frame is vertically supported at the edge of the bed board assembly by engaging the first engaging portion 501 and the second engaging portion 502. For example, the second engaging portion 502 is fixedly connected to the support base 2021. The second engaging portion 502 can be fixed on the support base 2021 on the side opposite to the load-bearing roller. The second engaging portion 502 may include one or more guide posts 5021. The first engaging portion 501 is fixed to the third frame 2013 and can be a flat plate with one or more through holes 5011. When it is necessary to install the support frame 201 onto the sliding support portion 202, the through hole of the first engaging portion 501 is aligned with the guide post of the second engaging portion 502, and the through hole is fitted onto the guide post. When it is necessary to remove the bracket frame 201 from the sliding support 202, the bracket frame 201 is lifted upwards, causing the through hole to disengage from the guide post. This allows for the free removal of the bracket frame 201. Optionally, at least one guide post 5021 has a length greater than or equal to the depth of the through hole 5011 to prevent the bracket frame 201 from falling off the sliding support 202.

[0067] In some embodiments, such as Figure 3 As shown, the support frame 201 (e.g., the third frame 2013) may include height-adjustable pads 2014 for supporting the bottom edge of the detector. For example, pads 2014 are provided at both ends of the third frame 2013, and the pads 2014 can be in two heights: state 1 and state 2. The minimum height of the pads must be such that when the detector is supported, the bottom edge of the detector is equal to or slightly higher than the top surface of the bed board, ensuring that the entire panel of the detector is located within the imaging area. The height of the detector can be flexibly adjusted using these pads, allowing for flexible adjustment of the imaging center for different tissue heights / thicknesses. However, this application is not limited to this; for example, a lifting mechanism can be provided on the detector support device so that the support frame 201 can be raised and lowered in the vertical direction to flexibly adjust the height of the detector. Examples are not provided here.

[0068] In some embodiments, in scenarios using existing image stitching technologies, the operator's experience is required to move the detector support to multiple locations, which may lead to inconsistencies in overlapping areas among multiple sub-medical images. To address this issue, in this embodiment, one or more markers can be provided on the bed board assembly for positioning the detector support device. These markers can serve as the moving positions of the detectors acquiring each sub-medical image, thereby ensuring image consistency and improving image quality. These markers can slide along the length of the bed board assembly to accommodate anatomical tissues of different heights / lengths of the objects being examined.

[0069] Figure 6This is a schematic diagram of the markings in an embodiment of this application, such as... Figure 6 As shown, a marking strip 61 can be provided on the side of the bed board assembly. This marking strip has N marks 62, the number of which can be determined as needed, for example, N=3. When the sliding support 202 slides under the operator's pushing force, the detector reference point supported by the sliding support (e.g., a mark 63 on the support frame) can be sequentially aligned with the N marks, so that the detector can be sequentially positioned to the aforementioned N positions, and sub-medical images of the object being detected can be acquired at each of the N positions. Optionally, the marking strip 61 can be provided in a groove or guide rail on the bed board assembly to achieve sliding along the length of the bed board assembly.

[0070] In some embodiments, in order to further optimize the workflow, save the operator's energy and physical strength, and improve the positioning accuracy of the detector, this application embodiment also provides a structure that enables the aforementioned detector support device to slide automatically, which is described in detail below.

[0071] In some embodiments, such as Figure 2 and 3 As shown, the detector support device also includes:

[0072] A tracking connection 203, detachably mounted on the support frame, enables the support frame to move automatically and synchronously with a receiving portion below the bed board assembly capable of carrying a detector. The tracking connection includes a metal plate 2031. This metal plate can be fixed to the support frame and inserted from the bottom of the third frame into the gap between the bottom of the bed board assembly and the transmission portion described later. The detector carried by the receiving portion is the detector in the aforementioned second detector assembly 131, or it can be the same detector carried by the support frame 201; this embodiment is not intended to limit this. The receiving portion can be used to carry a detector, but this does not necessarily mean that it actually carries a detector; the receiving portion can be in a state without carrying a detector or in a state with carrying a detector; this embodiment is not intended to limit this.

[0073] In some embodiments, the metal plate 2031 includes a first bent portion 211, and the third frame of the support frame has a protrusion 2015 on the side opposite to the sliding support portion. The first bent portion 211 is fastened onto the protrusion to mount the tracking connection portion 203 onto the support frame. Optionally, the tracking connection portion 203 further includes a spring plunger 2032 for mounting the metal plate 2031 onto the support frame. The spring plunger 2032 may be integral with the first bent portion 211 and may be in both unlocked and locked states. During installation, the sliding support portion 202 is first pushed into the groove 41 from one end of the bed board assembly, and then the support frame 201 is installed onto the sliding support portion 202. Then, with the spring plunger unlocked, the metal plate is inserted into the gap between the bottom of the bed board assembly and the transmission portion (described later), and then the spring plunger is locked to fix the metal plate 2031 onto the support frame.

[0074] In some embodiments, the device further includes a bracket 204 fixed to the receiving portion and a transmission portion 205 mounted on the bracket; and when the tracking connection portion 203 is mounted on the bracket frame, the transmission portion 205 is attracted to the tracking connection portion. Thus, when the aforementioned moving component drives the receiving portion below the bed board assembly to move, the bracket and the transmission portion move synchronously with the receiving portion, and the attracted tracking connection portion also moves with the transmission portion. Therefore, the bracket frame fixed to the tracking connection portion automatically moves synchronously with the receiving portion. That is, when the moving component provides driving force, the receiving portion and the bracket frame can move synchronously using the tracking connection portion.

[0075] Figure 8 This is a schematic diagram of the bracket 204 according to an embodiment of this application. Figure 9 This is a schematic diagram of the transmission unit 205 according to an embodiment of this application. Figure 10 This is a schematic diagram of the bracket and transmission unit assembled according to an embodiment of this application. Figure 11 This is a schematic diagram of the detector support device installed on the side edge of the bed board assembly according to an embodiment of this application. Figure 8 As shown, the bracket 204 includes a support base plate 801 and two support arms 802 fixed to the support base plate. The bracket is fixed to the receiving portion (e.g., directly fixed to the housing of the bed board) and can move synchronously with the receiving portion. When the tracking connection portion is inserted into the gap between the bottom of the bed board assembly and the transmission portion, the support arms support the lower surface of the metal plate of the tracking connection portion. Figure 8 As shown, the support arm 802 has a second bend 8021. The step of the second bend 8021 can support the lower surface of the metal plate of the tracking connection part. Through the second bend 8021, the synchronous movement of the tracking connection part can be further ensured. The width of the metal plate of the tracking connection part is approximately the same as the distance between the two support arms 802.

[0076] In some embodiments, such as Figure 9 and Figure 10 As shown, the transmission unit includes a base 91 and an electromagnetic unit 92 (made of, for example, electromagnet material). The base 91 is fixed to a support base plate 801 (e.g., by screw locking, but not limited thereto). The electromagnetic unit 92 is mounted on the base 91, but not fixed to it. The base 91 has multiple holes, and the lower part of the electromagnetic unit 92 has protrusions 921 equal to the number of holes. The protrusions 921 are inserted into the holes to mount the electromagnetic unit 92 onto the base 91. When an electrical signal is provided to the electromagnetic unit, it generates an electromagnetic force that attracts it to the metal plate of the tracking connection. When no electrical signal is provided, the electromagnetic unit detaches from the tracking connection due to its own gravity and falls back onto the base 91. The electromagnetic part 92 may include a spring (not shown) in the middle. When the electromagnetic part generates electromagnetic force, the spring force causes the electromagnetic part to adhere to the tracking connection. When no electrical signal is provided, the electromagnetic part separates from the tracking connection and falls back onto the base 91 due to its own weight and the spring force. The electromagnetic part may be a cylindrical electromagnet block, and its number and shape are not considered as limitations on the embodiments of this application.

[0077] The following explains how to generate electrical signals.

[0078] In some embodiments, the device may further include a photoelectric sensor (not shown), and the transmission part is electrically connected to the circuit (board) of the photoelectric sensor and the moving component. For example, the photoelectric sensor may be mounted on the support frame 803 of the bracket 204 (the photoelectric sensor is fixed through the threaded hole 8031 ​​on the support frame 803), and the height of the photoelectric sensor is slightly lower than the stepped plane of the second bend 8021. This is only an example, and the embodiments of this application are not intended to be limiting. Figure 11 As shown, when the tracking connector is inserted into the gap between the bottom of the bed board assembly and the transmission part, the photoelectric sensor is blocked by the lower surface of the metal plate of the tracking connector. When the photoelectric sensor is blocked, the photoresistor in the sensor is not illuminated, so the resistance value increases, and the two ends of the photoresistor are at a high voltage. Its internal circuit is equivalent to being connected, and the electromagnetic part 92 is equivalent to being provided with an electrical signal, and generates an electromagnetic force to attract it to the tracking connector according to the electrical signal. When the photoelectric sensor is not blocked by the lower surface of the metal plate of the tracking connector (when the metal plate is not inserted), the light intensity of the photoresistor in the photoelectric sensor increases, so the resistance value decreases, and the two ends of the photoresistor are at a low voltage. Its internal circuit is equivalent to being open, and the electromagnetic part 92 is not provided with an electrical signal, so no electromagnetic force is generated.

[0079] In some embodiments, optionally, such as Figure 9 and Figure 10As shown, the transmission unit also includes: support plates 93 located on both sides of the electromagnetic unit and guide portions 94 mounted on the support plates 93. The guide portions 94 may be guide rollers, used to guide the installation position of the tracking connection unit. Figure 10 As shown, the top of the guide portion 94 is slightly higher than the upper surface of the electromagnetic portion 92. When the tracking connector is inserted into the gap between the bottom of the bed plate assembly and the transmission portion, a portion of the lower surface of the metal plate of the tracking connector also contacts the guide portion 94 and is inserted into the gap between the bottom of the bed plate assembly and the transmission portion in the direction of rotation of the guide portion 94. The guide portion 94 can more conveniently guide the tracking connector to the correct installation position.

[0080] The above-described structures of the tracking connection, transmission part, and bracket are merely examples, and the embodiments of this application are not intended to limit the scope of protection of this application. Any structure that can achieve the above functions is within the scope of protection of this application.

[0081] In the above embodiments, the detector support device can slide along the edge of the bed board assembly. This sliding can be manually triggered or automatically triggered. When the follower connector is not installed, the sliding is manual; when the follower connector is installed, the sliding is automatic. The operator can flexibly switch between manual and automatic sliding modes as needed by installing or removing the follower connector.

[0082] This application also provides a medical imaging method. Figure 7 This is a schematic diagram of a medical imaging method according to an embodiment of this application, such as... Figure 7 As shown, the method includes:

[0083] 701, The detector support device carrying the detector slides to multiple different positions along the edge of the bed board assembly;

[0084] 702, Acquire sub-medical images of the detected object at multiple locations;

[0085] 703, stitching together multiple sub-medical images to obtain a medical image.

[0086] In manual mode: During installation, first push the sliding support 202 into the groove 41 from one end of the bed board assembly. Then, install the support frame 201 onto the sliding support 202. According to the scanning protocol, move the marker strip 61 to a predetermined position. Align the marker 63 on the assembled detector support device with the N markers 62 on the marker strip 61 sequentially to slide the detector support device to N positions. When aligned with the first marker, lock the position of the detector support device using the locking mechanism. Move the X-ray source and detector to coordinate and obtain a sub-medical image. Then, unlock the detector support device using the locking mechanism and move it to the next marker. Move the X-ray source and detector to coordinate and obtain the next sub-medical image, and so on, until N sub-medical images are obtained. The N sub-medical images are then stitched together to generate a medical image. The stitching method can be found in relevant technologies and will not be elaborated here.

[0087] In automatic mode: Based on manual mode, insert metal plate 2031 and lock spring plunger 2032. Since the detector support device and the receiving part under the bed board assembly can move synchronously, according to the set scanning protocol, the moving component will drive the receiving part to automatically move to multiple different positions (multiple positions along the length of the bed board). The detector carried by the detector support device will also move synchronously to these multiple positions along with the receiving part, coordinating the positions of the moving X-ray source and detector to acquire N sub-medical images. The N sub-medical images are then stitched together to generate a medical image. The stitching method can be found in relevant technologies and will not be elaborated here.

[0088] The above are merely illustrative examples. The embodiments of this application are not only applicable to scenarios involving image stitching, but also to scenarios where image stitching is not required. These will not be illustrated in detail here.

[0089] It is worth noting that the above figures are only schematic illustrations of embodiments of this application, and this application is not limited thereto. For example, the execution order between various operations can be appropriately adjusted, and other operations can be added or some operations can be removed, or operations can be added. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description in the above figures.

[0090] The above embodiments are merely illustrative examples of embodiments of this application, but this application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0091] Through the embodiments of this application, the support frame is vertically supported on the edge of the bed board assembly of the medical imaging system by the sliding support part, and can slide along the edge of the bed board assembly. This can save doctors' energy and physical strength, and the existing imaging system itself does not need to be changed, saving costs, and can meet more clinical use scenarios (such as image stitching) and special positioning examinations.

[0092] Furthermore, since the moving component drives the receiving portion (e.g., a tray) and detector panel under the bed board assembly to move longitudinally along the bed board, and the X-ray source in the medical imaging system is configured to be automatically aligned (or linked) with the detector under the bed board assembly, meaning that no matter where the moving component drives the receiving portion and its accommodated detector to, the center of the X-ray source can always be aligned with the detector under the bed board assembly, the detector support device of this embodiment can move synchronously with the receiving portion under the bed board assembly through the following connection portion. This achieves automatic alignment of the detector carried by the detector support device with the X-ray source without calibration. This further saves doctors' energy and physical strength, enables more accurate detector positioning, improves image quality, and allows for automatic change of detector position using existing moving components without the need for an additional control system.

[0093] In addition, the manual sliding mode and automatic sliding mode can be flexibly switched by disassembling and installing the connecting parts.

[0094] Furthermore, by setting one or more markers on the bed board assembly, detector positioning can be more precise, avoiding inconsistencies in overlapping areas among multiple sub-medical images and improving image quality. These markers can slide along the length of the bed board assembly to accommodate the anatomical tissues of different subjects of varying lengths and heights.

[0095] In addition, a locking part is provided on the sliding connection part to prevent sliding and lock the position of the detector.

[0096] In addition, the support frame includes a first engaging part and the sliding support part includes a second engaging part. Through the cooperation of the first engaging part and the second engaging part, the support frame can be freely disassembled.

[0097] Furthermore, the height of the detector can be flexibly adjusted using the pads on the support frame. Additionally, the imaging center for different tissue heights / thicknesses can be flexibly adjusted using the pads on the support frame.

[0098] In addition, the guide on the transmission part can more easily guide the following connection part to the correct installation position.

[0099] This application also provides a medical imaging system. Figure 12 This is a schematic diagram of a medical imaging system according to an embodiment of this application, as shown below. Figure 12 As shown, the system 1100 includes: a bed board assembly 1101; a detector 1102; and a detector support device 1103. Regarding the bed board assembly 1101, the implementation of the detector 1102 can refer to the foregoing embodiments. For example, the detector 1102 may be detached from the second detector assembly 131 or the first detector assembly 121. Alternatively, the detector 1102 may be a newly added detector, different from the detectors in the second detector assembly 131 or the first detector assembly 121. In this case, the medical imaging system can simultaneously utilize the detector in the second detector assembly below the bed board assembly and the detector 1102, i.e., simultaneously utilize two detectors to achieve simultaneous anteroposterior and lateral imaging of the patient. The X-ray source can be moved back and forth to achieve imaging, or the medical imaging system can be equipped with two sets of X-ray sources, each working in conjunction with one of the two detectors to acquire medical images.

[0100] Additionally, one or more markings may be provided on the bed board assembly 1101. The implementation of the detector support device 1103 can be referred to the foregoing embodiments and will not be repeated here. This medical imaging system may also include other components, such as the telescopic tube 113, the X-ray tube assembly 115, and the X-ray tube control device 116, etc., as detailed in [reference needed]. Figure 1 Examples will not be provided here.

[0101] The medical imaging system includes, but is not limited to, computed tomography (CT) systems, magnetic resonance imaging (MRI) systems, C-arm imaging systems, positron emission tomography (PET) systems, single-photon emission computed tomography (SPECT) systems, ultrasound systems, X-ray imaging systems, or any other suitable medical imaging system.

[0102] Although some embodiments of this application are based on Figure 1 The embodiments described herein are based on a suspended X-ray imaging system; however, this application is not intended to limit the scope of the embodiments. For example, the medical imaging system may also be a floor-standing X-ray imaging system, a portable X-ray imaging system, etc., which will not be listed here.

[0103] This application also provides a computer-readable program, wherein when the program is executed in a device or medical imaging system, the program causes the computer to perform the medical imaging method described in the foregoing embodiments in the medical imaging system.

[0104] This application also provides a computer program product, including at least a computer-readable program, wherein the computer-readable program causes a computer to perform the medical imaging method described in the foregoing embodiments in a medical imaging system.

[0105] The apparatus and methods described above in this application can be implemented in hardware or in combination with software. This application relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to implement the various methods or steps described above. This application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, etc.

[0106] The methods / apparatus described in conjunction with the embodiments of this application can be directly embodied in hardware, software modules executed by a processor, or a combination of both. For example, one or more and / or combinations of one or more functional block diagrams shown in the figures can correspond to various software modules in a computer program flow, or to various hardware modules. These software modules can correspond to the various steps shown in the figures, respectively. These hardware modules can be implemented, for example, using a field-programmable gate array (FPGA) to embed these software modules.

[0107] The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, enabling the processor to read information from and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and storage medium can reside in an ASIC. The software module can be stored in the memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a high-capacity MEGA-SIM card or a high-capacity flash memory device, the software module can be stored in the MEGA-SIM card or the high-capacity flash memory device.

[0108] One or more and / or one or more combinations of functional blocks described in the accompanying drawings can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described herein. One or more and / or one or more combinations of functional blocks described in the accompanying drawings can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0109] The present application has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on the principles thereof, and these modifications and variations are also within the scope of the present application.

Claims

1. A detector support device, characterized in that, The device includes: Support frame, which is used to support the detector; A sliding support is provided for vertically supporting the support frame on the edge of the bed board assembly of the medical imaging system and is capable of sliding along the edge of the bed board assembly.

2. The apparatus according to claim 1, wherein, The device further includes: A tracking connection, detachably mounted on the support frame, is used to enable the support frame to move automatically in sync with a receiving portion below the bed board assembly that can be used to carry the detector.

3. The apparatus according to claim 2, wherein, The device further includes: A bracket fixed to the receiving portion and a transmission portion mounted on the bracket; Furthermore, when the tracking connection is mounted on the bracket frame, the transmission part is attached to the tracking connection.

4. The apparatus according to claim 3, wherein, The device further includes: a photoelectric sensor; When the tracking connection is mounted on the bracket frame, the photoelectric sensor is blocked by the tracking connection, and the transmission part is provided with an electrical signal; Furthermore, the transmission unit generates an electromagnetic force based on the electrical signal to adhere to the tracking connection unit.

5. The apparatus according to claim 2, wherein, The tracking connection includes: Metal plate.

6. The apparatus according to claim 5, wherein, The tracking connection also includes a spring plunger for mounting the metal plate on the support frame.

7. The apparatus according to claim 3, wherein, The bracket includes a support base plate and two support arms fixed on the support base plate. When the tracking connection is installed on the bracket frame, the support arms support the tracking connection.

8. The apparatus according to claim 7, wherein, The transmission unit includes an electromagnetic unit; when an electrical signal is provided, the electromagnetic unit generates an electromagnetic force to attract the tracking connection unit, and when no electrical signal is provided, the electromagnetic unit separates from the tracking connection unit.

9. The apparatus according to claim 8, wherein, The transmission unit further includes guide portions located on both sides of the electromagnetic unit, which are used to guide the installation position of the tracking connection portion.

10. The apparatus according to claim 1, wherein, The support frame includes a first engaging portion, and the sliding support portion includes a second engaging portion. The support frame is vertically supported on the edge of the bed board assembly by engaging the first engaging portion with the second engaging portion.

11. The apparatus according to claim 1, wherein, The support frame includes height-adjustable pads for supporting the bottom edge of the detector.

12. The apparatus according to claim 1, wherein, The sliding support is embedded in the side groove of the bed board assembly and can slide within the side groove.

13. The apparatus according to claim 1, wherein, The sliding support also includes a locking part for preventing sliding and locking the position.

14. The apparatus according to claim 1, wherein, The bed board assembly is provided with one or more markings for positioning the detector support device.

15. The apparatus according to claim 14, wherein, The one or more marks are capable of sliding along the length of the bed board assembly.

16. A medical imaging system, characterized in that, The system includes: Bed board assembly; Detector; and The detector support device according to any one of claims 1 to 15.

17. A medical imaging method, characterized in that, The method includes: The detector is carried by the detector support device according to any one of claims 1 to 15 and slid along the edge of the bed plate assembly to multiple different positions; Sub-medical images of the detected object are acquired at the multiple locations respectively; and A medical image is obtained by stitching together multiple sub-medical images.

Images