Cone beam CT

Abstract

The cone beam CT comprises a first image acquisition assembly, a second image acquisition assembly, a rotary connecting piece and a rack, one end of the rotary connecting piece is respectively connected with the first image acquisition assembly and the second image acquisition assembly, and the other end is connected with the rack; the first image acquisition assembly comprises a first ray generator and a first detector; the second image acquisition assembly comprises a second ray generator and a second detector; the first ray generator and the first detector are distributed along the first rotating radial direction of the rotating connecting piece; the second ray generator and the second detector are distributed along the second rotating radial direction of the rotating connecting piece; the first rotation radial direction is different from the second rotation radial direction; the first ray generator and the second ray generator are respectively configured to emit a first imaging ray and a second imaging ray to a target object; the first detector and the second detector are configured to acquire a first scanned image and a second scanned image, respectively. According to the cone beam CT, the image acquisition time is shortened, and the diagnosis scanning efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a cone beam CT. Background Art

[0002] Cone beam CT (Computed Tomography) is a medical device that is often used to detect diseases, especially bone lesions and injuries. Cone beam CT usually includes a rotatable image acquisition component.

[0003] At present, during the detection process, most cone beam CT scans usually require the rotation of the image acquisition component to acquire scanning images of the target object at multiple angles, and then complete three-dimensional reconstruction through these images.

[0004] Most cone beam CT scans currently available usually only include one or a group of image acquisition components, which results in the cone beam CT scans not being efficient enough during image scanning. In other words, the diagnostic scanning efficiency of the cone beam CT scans currently available is not high enough. Utility Model Content

[0005] The purpose of the present application is to provide a cone beam CT, which can improve the diagnostic scanning efficiency of the cone beam CT by configuring at least two groups of image acquisition components.

[0006] A cone beam CT provided in the present application includes a first image acquisition component, a second image acquisition component, a rotating connection and a frame; one end of the rotating connection is respectively connected to the first image acquisition component and the second image acquisition component, and the other end is connected to the frame; the first image acquisition component includes a first ray generator and a first detector; the second image acquisition component includes a second ray generator and a second detector; the first ray generator and the first detector are distributed along a first rotational radial direction of the rotating connection; the second ray generator and the second detector are distributed along a second rotational radial direction of the rotating connection; wherein the first rotational radial direction is different from the second rotational radial direction; the first ray generator is configured to emit a first imaging ray to the target object; the first detector is configured to acquire a first scanned image of the target object that receives the first imaging ray; the second ray generator is configured to emit a second imaging ray to the target object; the second detector is configured to acquire a second scanned image of the target object that receives the second imaging ray.

[0007] The above-mentioned cone beam CT, by arranging the first ray generator and the first detector distributed along the first rotation radial direction and the second ray generator and the second detector distributed along the second radial direction on the rotating connecting member, reduces the required rotation angle of the image acquisition component when it is required to acquire the scanning image by rotation, thereby shortening the required acquisition time. Ultimately, the working efficiency of the cone beam CT is improved. Since the shooting speed of the cone beam CT is improved, the shooting of the human body or part of the human body (for example, organs such as the lungs) is realized.

[0008] Optionally, the first rotation radial direction is perpendicular to the second rotation radial direction.

[0009] In the above cone beam CT, when the first rotation radial direction is perpendicular to the second rotation radial direction, the first ray generator, the first detector, the second ray generator and the second detector are distributed on the rotating connection at uniform angles, further improving the working efficiency of the cone beam CT.

[0010] Optionally, a power supply module is also included; the power supply module is electrically connected to the first image acquisition component and the second image acquisition component respectively, and is configured to supply power to the first image acquisition component and the second image acquisition component when they rotate any number of times at a target angle in the same direction.

[0011] The above-mentioned cone beam CT uses the power supply module of the above configuration to power the first image acquisition component and the second image acquisition component, so that when the first image acquisition component and the second image acquisition component rotate any number of times in the same direction at the target angle, the first image acquisition component and the second image acquisition component can still be powered continuously. Furthermore, during the operation of the cone beam CT, the first image acquisition component and the second image acquisition component do not need to restore their initial positions before the next image acquisition can be performed, which ultimately improves the efficiency of the cone beam CT in performing diagnostic scanning.

[0012] Optionally, the power supply module includes a brush; the brush is arranged on the frame; the rotating connector is provided with a conductive ring distributed along its rotation circumference; the conductive ring is electrically connected to the first image acquisition component and the second image acquisition component respectively, and contacts the brush, so that the brush supplies power to the first image acquisition component and the second image acquisition component respectively.

[0013] The above-mentioned cone beam CT realizes the continuous power supply to the first image acquisition component and the second image acquisition component respectively without restricting the rotation of the first image acquisition component and the second image acquisition component through the contact between the brushes arranged on the frame and the conductive rings on the rotating connector. On this basis, compared with the solution of arranging a battery or other power source on the first image acquisition component and / or the second image acquisition component to power them, there is no need to consider the endurance of the power source during the use of the cone beam CT, and the entire cone beam CT can be powered by one power source. Furthermore, on the basis of improving the efficiency of the cone beam CT in performing diagnostic scanning, the efficiency and convenience of performing diagnostic scanning are also improved. Furthermore, since there is no need to set up an additional power source on the first image acquisition component and / or the second image acquisition component, the structure of the cone beam CT is simplified to a certain extent.

[0014] Optionally, the brush comprises a carbon brush.

[0015] In the above-mentioned cone beam CT, since the carbon brush has good wear resistance and heat resistance, the life of the carbon brush is usually longer than that of brushes made of other materials, thereby increasing the service life of the cone beam CT. In addition, since the surface of the carbon brush is smooth and the friction coefficient is low, energy loss and heat generation are reduced, thereby reducing the use cost of the cone beam CT by improving energy utilization.

[0016] Optionally, a first rotating driving member is provided on the frame, and the first rotating driving member has a gear output end; the rotating connecting member includes a gear input part; the gear output end is engaged with the gear input part to drive the first image acquisition component and the second image acquisition component to rotate.

[0017] The above-mentioned cone beam CT drives the rotation of the rotating connection member by means of gear meshing, has a relatively simple structure and a high transmission efficiency, and further reduces the use cost of the cone beam CT by improving the energy utilization rate.

[0018] Optionally, the rotating connection member includes a rotating bearing; one end of the rotating bearing is respectively connected to the first image acquisition component and the second image acquisition component, and the other end is connected to the frame.

[0019] The above-mentioned cone beam CT uses a rotating bearing to respectively connect the frame, the first image acquisition component and the second image acquisition component, thereby realizing a rotatable connection between the first image acquisition component and the second image acquisition component and the frame, reducing the friction between the frame and the first image acquisition component and the second image acquisition component in the cone beam CT, and making the first image acquisition component and the second image acquisition component more stable during the rotation process. In addition, since the friction is reduced, the accuracy of controlling the rotation angle of the first image acquisition component and the second image acquisition component is improved, and finally the accuracy of the scanned image collected by the cone beam CT 100 is improved.

[0020] Optionally, the frame includes a sliding connection assembly; the sliding connection assembly is connected to the rotating connection member to enable the first image acquisition assembly and the second image acquisition assembly to slide on the frame; wherein the sliding direction of the sliding connection assembly intersects with the plane where the rotating connection member rotates circumferentially.

[0021] The above cone beam CT, by setting a sliding connection component on the frame, realizes that the position of the image acquisition module in the sliding direction of the sliding connection component can be adjusted, thereby enabling the cone beam CT to perform diagnostic scanning on different parts of the same target object. That is, the convenience of using the network cone beam CT is further improved.

[0022] Optionally, the sliding connection assembly includes a second rotating drive member, a screw and a screw nut; the output end of the second rotating drive member is connected to the screw to drive the screw to rotate; the screw nut is sleeved on the screw and connected to the rotating connection member; wherein the length direction of the screw intersects with the plane where the rotating connection member rotates circumferentially.

[0023] The above-mentioned cone beam CT converts the torque output by the rotating motor into linear motion by adopting the "screw + screw nut" method, thereby realizing the adjustable position of the first image acquisition component and the second image acquisition component in the sliding direction. The transmission efficiency of the "screw + screw nut" method is higher, thereby reducing the use cost of the cone beam CT by improving the energy utilization.

[0024] Optionally, a wireless communication module is provided on the frame; the wireless communication module is electrically connected to the first image acquisition component and the second image acquisition component respectively; the wireless communication module is configured to: receive the control instruction from the user operation end by wireless communication, and send it to the first image acquisition component and / or the second image acquisition component when the control instruction is received; and send the first scanned image and / or the first scanned image to the user control end by wireless communication; the first image acquisition component is configured to acquire the first scanned image in response to the control instruction and transmit it to the wireless communication module; the second image acquisition component is configured to acquire the second scanned image in response to the control instruction and transmit it to the wireless communication module.

[0025] The above-mentioned cone beam CT transmits the instructions for controlling the first image acquisition component and the second image acquisition component and the images acquired by the first image acquisition component and the second image acquisition component through the wireless communication module. Compared with the wired communication method, the wire is not limited in the operation of the cone beam CT, and the selection of the setting position of the wireless communication module can be more flexible. Therefore, the convenience of the cone beam CT is further improved and the structure of the cone beam CT is simplified.

[0026] In summary, the cone beam CT provided by the present application shortens the time required for image acquisition by arranging the first ray generator and the first detector distributed along the first rotation radial direction and the second ray generator and the second detector distributed along the second radial direction on the rotating connector. Ultimately, the working efficiency of the cone beam CT is improved. By adopting the power supply module of the above configuration to power the first image acquisition component and the second image acquisition component, when the first image acquisition component and the second image acquisition component rotate any number of times in the same direction at the target angle, the first image acquisition component and the second image acquisition component can still be continuously powered respectively. Furthermore, during the operation of the cone beam CT, the first image acquisition component and the second image acquisition component do not need to restore their initial positions before the next image acquisition can be performed, which ultimately further improves the efficiency of the cone beam CT in diagnostic scanning. By arranging a sliding connection component on the frame, the position of the image acquisition module in the sliding direction of the sliding connection component can be adjusted, so that the cone beam CT can perform diagnostic scanning on different parts of the same target object. That is, the convenience of using the network cone beam CT is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A stereoscopic image of a cone beam CT provided in an embodiment of the present application;

[0029] Figure 2 A stereoscopic diagram of a gantry in a cone beam CT provided in an embodiment of the present application;

[0030] Figure 3 A top view of the brushes and rotating connector in the cone beam CT provided in an embodiment of the present application.

[0031] Icons: 100, cone beam CT; 110, first image acquisition component; 111, first ray generator; 112, first detector; 120, second image acquisition component; 121, second ray generator; 122, second detector; 130, rotating connection; 131, conductive ring; 140, frame; 141, first rotating drive member; 142, sliding connection assembly; 1421, second rotating drive member; 1422, lead screw; 1423, lead screw nut; 143, wireless communication module; 150, power supply module; 151, brush. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Please refer to Figure 1 , Figure 11 is a stereoscopic diagram of a cone beam CT 100 provided in an embodiment of the present application. The cone beam CT 100 provided in an embodiment of the present application may include a first image acquisition component 110, a second image acquisition component 120, a rotating connection 130, and a rack 140. One end of the rotating connection 130 may be connected to the first image acquisition component 110 and the second image acquisition component 120, respectively, and the other end may be connected to the rack 140. The first image acquisition component 110 may include a first ray generator 111 and a first detector 112. The second image acquisition component 120 may include a second ray generator 121 and a second detector 122. The first ray generator 111 may be distributed with the first detector 112 along a first rotational radial direction of the rotating connection 130. The second ray generator 121 may be distributed with the second detector 122 along a second rotational radial direction of the rotating connection 130. The first rotational radial direction may be different from the second rotational radial direction. The first ray generator 111 may be configured to emit a first imaging ray to a target object. The first detector 112 may be configured to collect a first scanned image of the target object that receives the first imaging ray. The second ray generator 121 may be configured to emit a second imaging ray to the target object. The second detector 122 may be configured to acquire a second scanned image of the target object that receives the second imaging ray.

[0039] The drive of the rotatable image acquisition component may be a "poly-V belt + servo motor" method, a "synchronous belt + servo motor" method or a "gear meshing" method.

[0040] The first rotation radial direction and the second rotation radial direction may be two different radial directions on the rotation axis of the rotation connection member 130 .

[0041] For example, when the image acquisition component needs to acquire a scanning image of 240° around the target object, if there is only one set of image acquisition components, that is, only the first ray generator 111 and the first detector 112, or only the second ray generator 121 and the second detector 122, the image acquisition component usually needs to be rotated 240°. If the image acquisition component described in the above embodiment (including the first image acquisition component 110 and the second image acquisition component 120) is used, the angle of rotation of the rotating connection 130 is usually less than 240°.

[0042] It should be understood that based on the disclosure of the embodiments of the present application, the cone beam CT 100 may also include a third image acquisition component, and the third image acquisition component may include a third ray generator and a third detector, and the third ray generator and the third detector may be distributed along a third rotation radial. As a preferred embodiment, the minimum angle between the first rotation radial, the second rotation radial, and the third rotation radial may be 120°. Continuing with the above example, when the first rotation radial, the second rotation radial, and the third rotation radial are evenly distributed with the minimum angle between them being 120°, it is usually only necessary for the rotating connector 130 to rotate 80°.

[0043] In the above implementation process, by arranging the first ray generator 111 and the first detector 112 distributed along the first rotation radial direction and the second ray generator 121 and the second detector 122 distributed along the second radial direction on the rotating connector 130, when the image acquisition component needs to acquire the scanned image by rotation, the required rotation angle is reduced, thereby shortening the acquisition time. Finally, the working efficiency of the cone beam CT 100 is improved. Since the shooting speed of the cone beam CT 100 is improved, the shooting of the human body or part of the human body (for example, organs such as the lungs) is realized.

[0044] Please continue to refer to Figure 1 In some optional embodiments, the first rotation radial direction may be perpendicular to the second rotation radial direction.

[0045] The first rotation radial direction may be perpendicular to the second rotation radial direction, and when a scanning image of 240° around the target object needs to be acquired, the rotation angle of the rotating connector 130 is usually only required to be 120°.

[0046] In the above implementation process, when the first rotation radial direction is perpendicular to the second rotation radial direction, the first ray generator 111, the first detector 112, the second ray generator 121 and the second detector 122 are distributed on the rotating connection member 130 at uniform angles, further improving the working efficiency of the cone beam CT 100.

[0047] Please continue to refer to Figure 1 In some optional implementations, the cone beam CT 100 provided in the embodiment of the present application may further include a power supply module 150. The power supply module 150 may be electrically connected to the first image acquisition component 110 and the second image acquisition component 120, respectively, and may be configured to supply power to the first image acquisition component 110 and the second image acquisition component 120 when they rotate at the target angle any number of times in the same direction.

[0048] As an optional implementation, the power supply module 150 may be a power supply disposed on the portion where the rotating connector 130 is connected to the first image acquisition component 110 and the second image acquisition component 120, respectively, and capable of rotating together with the first image acquisition component 110 and the second image acquisition component 120, for example, a battery disposed in the first image acquisition component 110 and / or the second image acquisition component 120. The power supply is electrically connected to the first image acquisition component 110 and the second image acquisition component 120, respectively, to supply power to the first image acquisition component 110 and the second image acquisition component 120.

[0049] As another optional implementation, the power supply module 150 may further include a brush 151 disposed on the frame 140 or the portion where the rotating connector 130 is connected to the frame 140, and a power supply electrically connected to the brush 151. The brush 151 is in contact with the power input terminals of the first image acquisition component 110 and the second image acquisition component 120, respectively, to conduct the power of the power supply to the first image acquisition component 110 and the second image acquisition component 120. Specifically, it will be described in detail in the embodiments later in this application.

[0050] Through the two specific implementations of the power supply module 150 exemplified above, it is possible to continuously power the first image acquisition component 110 and the second image acquisition component 120 when they rotate at the target angle any number of times in the same direction, without the need to reset the first image acquisition component 110 and the second image acquisition component 120 by rotating in opposite directions. The target angle is determined according to the diagnostic scanning requirements of the user during the use of the cone beam CT 100. During the process of the first image acquisition component 110 and the second image acquisition component 120 rotating at the target angle for several times, the corresponding target angles may be all equal or not all equal.

[0051] It is worth mentioning that in the embodiment of the present application, during the process of the first image acquisition component 110 and the second image acquisition component 120 rotating at the target angle determined according to the user's use requirements, as the number of rotations increases, the rotation angle and the number of rotations of the first image acquisition component 110 and the second image acquisition component 120 will also increase accordingly. For example, the process of the rotation angle and the number of rotations increasing with the number of rotations may be 90° (first circle), 180° (first circle), 270° (first circle), 360° (first circle), 450° (90° of the second circle), 540° (180° of the second circle), 810° (90° of the third circle)...

[0052] In the above implementation process, the power supply module 150 of the above configuration is used to power the first image acquisition component 110 and the second image acquisition component 120, so that when the first image acquisition component 110 and the second image acquisition component 120 rotate any number of times in the same direction at the target angle, the first image acquisition component 110 and the second image acquisition component 120 can still be powered continuously. Furthermore, during the operation of the cone beam CT 100, the first image acquisition component 110 and the second image acquisition component 120 do not need to restore their initial positions before the next image acquisition, which ultimately improves the efficiency of the cone beam CT 100 in performing diagnostic scanning.

[0053] Please combine Figure 1 Reference Figure 3 , Figure 3 1 is a top view of the brush 151 and the rotating connector 130 in the cone beam CT 100 provided in an embodiment of the present application. In some optional embodiments, the power supply module 150 may include a brush 151. The brush 151 may be disposed on the frame 140. The rotating connector 130 may be provided with conductive rings 131 distributed along its rotational circumference. The conductive rings 131 may be electrically connected to the first image acquisition component 110 and the second image acquisition component 120, respectively, and may contact the brush 151, so that the brush 151 supplies power to the first image acquisition component 110 and the second image acquisition component 120, respectively.

[0054] The number of the conductive rings 131 can be determined according to actual needs. For example, in the case where the positive and negative poles of direct current need to be conducted, the number of the conductive rings 131 can be two. Of course, a larger number of conductive rings 131 can also be provided, and can be used for data interaction with the first image acquisition component 110 and the second image acquisition component 120, for example, the transmission of scanned images and the transmission of control instructions for controlling the first image acquisition component 110 and the second image acquisition component 120, etc.

[0055] The brush 151 may be disposed on the frame 140 and may have two conductive ends, one of which may be electrically connected to a power source, and the other of which may be in contact with a conductive ring 131 on the rotating connector 130. During the use of the cone beam CT 100, it is usually necessary to control the first image acquisition component 110 and the second image acquisition component 120 to rotate according to the use requirements. During the rotation of the first image acquisition component 110 and the second image acquisition component 120, the brush 151 contacts the conductive ring 131 on the rotating connector 130, so that the first image acquisition component 110 and the second image acquisition component 120 can be continuously powered, respectively, without limiting the rotation angle of the first image acquisition component 110 and the second image acquisition component 120.

[0056] In the above implementation process, through the contact between the brush 151 provided on the frame 140 and the conductive ring 131 on the rotating connector 130, the first image acquisition component 110 and the second image acquisition component 120 are respectively powered continuously without limiting the rotation of the first image acquisition component 110 and the second image acquisition component 120. On this basis, compared with the solution of providing a power source such as a battery on the first image acquisition component 110 and / or the second image acquisition component 120 to power it, there is no need to consider the endurance of the power source during the use of the cone beam CT 100, and the entire cone beam CT 100 can be powered by one power source. Furthermore, on the basis of improving the efficiency of the cone beam CT 100 in performing diagnostic scanning, the convenience of performing diagnostic scanning is also improved. In addition, since there is no need to provide an additional power source on the first image acquisition component 110 and / or the second image acquisition component 120, the structure of the cone beam CT 100 is also simplified to a certain extent.

[0057] In some optional embodiments, the brush 151 may include a carbon brush.

[0058] In the above implementation process, since the carbon brush has good wear resistance and heat resistance, the life of the carbon brush is usually longer than that of the brush 151 made of other materials, thereby increasing the service life of the cone beam CT 100. In addition, since the surface of the carbon brush is smooth and the friction coefficient is low, energy loss and heat generation are reduced, thereby reducing the use cost of the cone beam CT 100 by improving energy utilization.

[0059] Please continue Figure 1 In some optional embodiments, a first rotating driving member 141 may be provided on the frame 140, and the first rotating driving member 141 may have a gear output end. The rotating connecting member 130 may include a gear input portion. The gear output end may mesh with the gear input portion to drive the first image acquisition component 110 and the second image acquisition component 120 to rotate.

[0060] The rotating connection member 130 may be a disk, a ring, etc. rotatably disposed on the frame 140, or may be a rotating bearing. The above-mentioned gear input part may be disposed on the portion of the rotating connection member 130 that rotates with the first image acquisition component 110 and the second image acquisition component 120. For example, the rotating connection member 130 is a first gear rotatably disposed on the frame 140. The first rotating driving member 141 may be a rotating motor, etc., and the gear output end of the rotating motor may be a second gear mounted on the rotating motor.

[0061] In the above implementation process, the rotation of the rotating connector 130 is driven by gear meshing, which has a simple structure and high transmission efficiency, thereby reducing the use cost of the cone beam CT 100 by improving energy utilization.

[0062] In some optional embodiments, the rotating connector 130 may include a rotating bearing. One end of the rotating bearing may be connected to the first image acquisition component 110 and the second image acquisition component 120 respectively, and the other end may be connected to the frame 140.

[0063] In the above implementation process, by using a rotating bearing to respectively connect the frame 140, the first image acquisition component 110 and the second image acquisition component 120, the first image acquisition component 110 and the second image acquisition component 120 are rotatably connected to the frame 140, the friction between the frame 140 and the first image acquisition component 110 and the second image acquisition component 120 in the cone beam CT 100 is reduced, and the first image acquisition component 110 and the second image acquisition component 120 are made more stable during the rotation process. In addition, due to the reduction of friction, the accuracy of controlling the rotation angle of the first image acquisition component 110 and the second image acquisition component 120 is improved, and finally the accuracy of the scanned image collected by the cone beam CT 100 is improved.

[0064] Please combine Figure 1 Reference Figure 2 , Figure 2 1 is a three-dimensional diagram of the gantry 140 in the cone beam CT 100 provided in an embodiment of the present application. In some optional embodiments, the gantry 140 may include a sliding connection assembly 142. The sliding connection assembly 142 may be connected to the rotating connection member 130 to enable the first image acquisition assembly 110 and the second image acquisition assembly 120 to slide on the gantry 140. The sliding direction of the sliding connection assembly 142 may intersect with the plane where the rotating connection member 130 rotates circumferentially.

[0065] The sliding connection component 142 can be driven by a "servo motor + lead screw", a "motor reducer + wire rope", a "motor reducer + chain" or a "linear motor + guide rail" etc.

[0066] During the use of cone beam CT 100, taking a diagnostic scan of a standing human body as an example, when a diagnostic scan needs to be performed on different parts of the human body, the sliding connection component 142 can be controlled to slide on the frame 140 to adjust the height of the first image acquisition component 110 and the second image acquisition component 120, thereby performing a diagnostic scan on the part of the human body that needs to be diagnosed.

[0067] As a preferred embodiment, the sliding direction of the sliding connection assembly 142 may be perpendicular to the plane where the rotating connection member 130 rotates circumferentially.

[0068] In the above implementation process, by setting the sliding connection component 142 on the frame 140, the position of the image acquisition module in the sliding direction of the sliding connection component 142 can be adjusted, so that the cone beam CT 100 can perform diagnostic scanning on different parts of the same target object. That is, the convenience of using the network cone beam CT 100 is further improved.

[0069] Please continue to refer to Figure 1 and Figure 2 In some optional embodiments, the sliding connection assembly 142 may include a second rotary drive member 1421, a screw rod 1422, and a screw nut 1423. The output end of the second rotary drive member 1421 may be connected to the screw rod 1422 to drive the screw rod 1422 to rotate. The screw nut 1423 may be sleeved on the screw rod 1422 and may be connected to the rotary connection member 130. The length direction of the screw rod 1422 may intersect with the plane where the rotary connection member 130 rotates circumferentially.

[0070] The second rotation driving member 1421 may be a rotation motor.

[0071] In the above implementation process, the torque output by the rotating motor is converted into linear motion by adopting the "screw + screw nut" method, thereby achieving the adjustable position of the first image acquisition component 110 and the second image acquisition component 120 in the sliding direction. The transmission efficiency of the "screw + screw nut" method is higher, thereby reducing the use cost of the cone beam CT100 by improving energy utilization.

[0072] Please continue to refer to Figure 1 In some optional embodiments, a wireless communication module 143 may be provided on the rack 140. The wireless communication module 143 may be electrically connected to the first image acquisition component 110 and the second image acquisition component 120, respectively. The wireless communication module 143 may be configured to: receive a control instruction from the user operation end by wireless communication, and send the control instruction to the first image acquisition component 110 and / or the second image acquisition component 120 when the control instruction is received. And send the first scan image and / or the first scan image to the user control end by wireless communication. The first image acquisition component 110 is configured to acquire the first scan image in response to the control instruction and transmit it to the wireless communication module 143. The second image acquisition component 120 is configured to acquire the second scan image in response to the control instruction and transmit it to the wireless communication module 143.

[0073] In the above implementation process, the wireless communication module 143 transmits the instructions for controlling the first image acquisition component 110 and the second image acquisition component 120 and the images acquired by the first image acquisition component 110 and the second image acquisition component 120. Compared with the wired communication method, the wire is not limited in the operation of the cone beam CT 100, and the selection of the setting position of the wireless communication module 143 can be more flexible. In addition, the convenience of the cone beam CT 100 is further improved and the structure of the cone beam CT 100 is simplified.

[0074] In summary, the cone beam CT 100 provided in each embodiment of the present application shortens the time required for image acquisition by arranging the first ray generator 111 and the first detector 112 distributed along the first rotation radial direction, and the second ray generator 121 and the second detector 122 distributed along the second radial direction on the rotating connecting member 130. Finally, the working efficiency of the cone beam CT 100 is improved. By adopting the power supply module 150 of the above configuration to power the first image acquisition component 110 and the second image acquisition component 120, when the first image acquisition component 110 and the second image acquisition component 120 rotate any number of times in the same direction at the target angle, the first image acquisition component 110 and the second image acquisition component 120 can still be powered continuously. Furthermore, during the operation of the cone beam CT 100, the first image acquisition component 110 and the second image acquisition component 120 do not need to restore the initial position to perform the next image acquisition, which further improves the efficiency of the cone beam CT 100 in diagnostic scanning. By arranging the sliding connection assembly 142 on the frame 140, the position of the image acquisition module in the sliding direction of the sliding connection assembly 142 can be adjusted, thereby enabling the cone beam CT 100 to perform diagnostic scanning on different parts of the same target object. That is, the convenience of using the network cone beam CT 100 is further improved.

[0075] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cone beam CT, characterized in that: It includes a first image acquisition component, a second image acquisition component, a rotating connection piece and a frame; One end of the rotating connecting member is connected to the first image acquisition component and the second image acquisition component respectively, and the other end is connected to the frame; The first image acquisition assembly includes a first ray generator and a first detector; the second image acquisition assembly includes a second ray generator and a second detector; The first ray generator and the first detector are distributed along a first rotation radial direction of the rotating connection member; the second ray generator and the second detector are distributed along a second rotation radial direction of the rotating connection member; wherein the first rotation radial direction is different from the second rotation radial direction; The first ray generator is configured to emit a first imaging ray to a target object; the first detector is configured to acquire a first scanned image of the target object that receives the first imaging ray; The second ray generator is configured to emit a second imaging ray toward the target object; and the second detector is configured to acquire a second scanned image of the target object that receives the second imaging ray.

2. The cone beam CT according to claim 1, characterized in that: in, The first rotation radial direction is perpendicular to the second rotation radial direction.

3. The cone beam CT according to claim 1, characterized in that: Also includes a power supply module; The power supply module is electrically connected to the first image acquisition component and the second image acquisition component respectively, and is configured to supply power to the first image acquisition component and the second image acquisition component when they rotate at a target angle any number of times in the same direction.

4. The cone beam CT according to claim 3, characterized in that: The power supply module includes a brush; the brush is arranged on the frame; The rotating connecting piece is provided with conductive rings distributed along the rotating circumference thereof; The conductive ring is electrically connected to the first image acquisition component and the second image acquisition component respectively, and is in contact with the brush, so that the brush supplies power to the first image acquisition component and the second image acquisition component respectively.

5. The cone beam CT according to claim 4, characterized in that: The brushes include carbon brushes.

6. The cone beam CT according to claim 1, characterized in that: The frame is provided with a first rotating driving member, and the first rotating driving member has a gear output end; The rotary connector includes a gear input portion; The gear output end is meshed with the gear input portion to drive the first image acquisition component and the second image acquisition component to rotate.

7. The cone beam CT according to claim 1, characterized in that: The rotary connection comprises a rotary bearing; One end of the rotary bearing is respectively connected to the first image acquisition component and the second image acquisition component, and the other end is connected to the frame.

8. The cone beam CT according to claim 1, characterized in that: The frame includes a sliding connection assembly; The sliding connection assembly is connected to the rotating connection member to enable the first image acquisition assembly and the second image acquisition assembly to slide on the frame; Wherein, the sliding direction of the sliding connection assembly intersects with the plane where the rotating connection member rotates circumferentially.

9. The cone beam CT according to claim 8, characterized in that: The sliding connection assembly includes a second rotary drive member, a screw and a screw nut; The output end of the second rotation driving member is connected to the screw rod to drive the screw rod to rotate; The screw nut is sleeved on the screw and connected to the rotating connector; Wherein, the length direction of the screw rod intersects with the plane where the rotating connecting member rotates circumferentially.

10. The cone beam CT according to any one of claims 1 to 9, characterized in that: A wireless communication module is provided on the rack; The wireless communication module is electrically connected to the first image acquisition component and the second image acquisition component respectively; The wireless communication module is configured to: receive a control instruction from a user operation terminal by wireless communication, and send the control instruction to the first image acquisition component and / or the second image acquisition component upon receipt of the control instruction; and sending the first scanned image and / or the first scanned image to a user control terminal by means of wireless communication; The first image acquisition component is configured to acquire the first scanned image in response to the control instruction and transmit it to the wireless communication module; The second image acquisition component is configured to acquire the second scan image in response to the control instruction and transmit it to the wireless communication module.

Images