Double-suspension CBCT (cone beam computed tomography) device

Abstract

The utility model discloses a double suspension CBCT (cone beam computed tomography) device, which comprises a frame body, two groups of longitudinal rail components, two groups of suspension bracket components and a detection component, the frame body is provided with a first guide rail, and a photography bed group is positioned below the frame body; the two longitudinal rail assemblies are movably connected to the first guide rails and provided with second guide rails extending in the direction perpendicular to the extending direction of the first guide rails. The two hanging bracket assemblies are movably connected to the corresponding second guide rails, the hanging bracket assemblies are provided with telescopic arms capable of vertically moving, and supporting pieces capable of rotating around the axes of the corresponding telescopic arms are arranged at the bottoms of the two telescopic arms; the detection assembly comprises a detector assembly connected to one supporting piece through a rotating shaft and an ox head assembly rotatably connected to the other supporting piece through a rotating shaft, and the detector assembly and the ox head assembly can correspondingly move to the two sides of the photography bed set and can rotate around the axis of the corresponding rotating shaft. The problem that the use scene of CBCT equipment is relatively single can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical detection technical field, especially a double suspension CBCT device. BACKGROUND

[0002] CBCT (Cone beam CT) is cone beam CT, it is a kind of cone beam projection computer recombination tomography equipment, its principle is that X-ray generating device does annular DR around projection body with lower radiation dose.Then the image obtained after multiple digital projection around projection body is reconstructed in computer to obtain the three-dimensional image of projection body.

[0003] CBCT is the diagnosis scheme widely used in clinical medicine, tumor, intervention etc., it has the characteristics such as fast imaging speed, good imaging quality, small radiation dose, clinical diagnosis is convenient and fast etc.Currently other whole body each part radiodiagnosis is mainly DR (digital X-ray imaging) and CT (electronic computer tomography).DR radiation dose is low, but for two-dimensional imaging is not intuitive enough to be not conducive to the diagnosis of pathological changes.CT examination obtains each cross-sectional image conventionally, and multiple cannot show organ structure and pathological changes as a whole.Application CT three-dimensional display technology can overcome this limit, but increases post-processing time, reduces diagnostic efficiency, and the radiation dose is relatively high.CBCT combines the advantages of the two, and has low radiation dose, fast imaging speed, three-dimensional imaging for diagnosis, and has good application prospect in clinic.

[0004] But the existing CBCT scheme is mostly special equipment, or for sitting imaging (dentistry), or for lying imaging, cannot satisfy standing imaging, lying imaging and DR imaging simultaneously, and use scene is relatively single.

[0005] Therefore, how to avoid the CBCT equipment use scene is relatively single to expand the use scene of CBCT equipment is the technical problem that present technical personnel in the field need to solve. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a double suspension CBCT device, which can avoid the CBCT equipment use scene is relatively single to expand the use scene of CBCT equipment.

[0007] To realize the above-mentioned purpose, the utility model provides a double suspension CBCT device, which comprises:

[0008] The frame body is provided with a first guide rail, and the photographic bed group is located below the frame body;

[0009] The two groups of longitudinal rail assemblies are movably connected to the first guide rail, and the longitudinal rail assembly is provided with a second guide rail extending along the direction perpendicular to the extension direction of the first guide rail;

[0010] Two groups of hanger assemblies are movably connected to the corresponding second guide rails, and each hanger assembly is provided with a telescopic arm capable of vertical movement, and the bottom of each telescopic arm is provided with a support capable of rotating around the axis of the corresponding telescopic arm;

[0011] The detection assembly comprises a detector assembly connected to one support through a rotating shaft, and a cow head assembly rotatably connected to the other support through a rotating shaft, and the detector assembly and the cow head assembly are capable of moving to the two sides of the photography bed group correspondingly and are capable of rotating around the axis of the corresponding rotating shaft.

[0012] Preferably, the first guide rail is two and extends along the first direction, and the two first guide rails are located on the two sides of the frame body in the second direction, and the first direction is perpendicular to the second direction.

[0013] The longitudinal rail assembly further comprises a first sliding member fixedly connected to the top of the second guide rail, and a plurality of groups of roller assemblies rotatably connected to the first guide rail are arranged on the two sides of the first sliding member in the second direction, so that the longitudinal rail assembly can move along the first direction.

[0014] Preferably, the second guide rail in each group of hanger assemblies is two and extends along the second direction, and the hanger assembly further comprises a lifting head connected to the corresponding second guide rail, and a plurality of groups of rolling assemblies rotatably connected to the second guide rail are arranged on the two sides of the lifting head in the first direction, so that the hanger assembly can move along the second direction.

[0015] The top of the telescopic arm is connected to the bottom of the corresponding lifting head, so as to drive the support at the bottom of the telescopic arm to move along the axis direction of the telescopic arm.

[0016] Preferably, a plurality of groups of first limiting rollers are arranged on the two sides of the first sliding member in the second direction, and the first limiting rollers abut against the inner side wall of the first guide rail in the second direction, so as to limit the movement of the first sliding member in the second direction.

[0017] The second limiting roller is arranged on the two sides of the lifting head in the first direction, and the second limiting roller abuts against the inner side wall of the second guide rail in the first direction, so as to limit the movement of the lifting head in the first direction.

[0018] Preferably, the axis of the rotating shaft is perpendicular to the axis of the telescopic arm.

[0019] The support is internally provided with a first power source capable of driving itself to rotate around the axis of the telescopic arm, and a second power source capable of driving the rotating shaft to rotate around its axis, so as to drive the detector assembly and the cow head assembly connected to the corresponding support to rotate.

[0020] Preferably, the first guide rail and the second guide rail are each provided with an electrical limiting device, so as to limit the stroke of the first sliding member and the lifting head.

[0021] Preferably, the control module is further included, the first sliding member, the lifting head, the telescopic arm, the support and the rotating shaft are respectively provided with sensors connected to the control module, the first sliding member is connected with a third power source for driving the first sliding member to move, the lifting head is connected with a fourth power source for driving the lifting head to move, the telescopic arm is connected with a fifth power source for driving the telescopic arm to retract, and the control module is connected to the first power source, the second power source, the third power source, the fourth power source and the fifth power source to control the moving positions of the detector assembly and the cow head assembly.

[0022] Preferably, the photographing bed set comprises a horizontal bed body and a vertical film rack, the horizontal bed body is horizontally arranged and connected to the ground through a lifting platform at one end, and the vertical film rack is vertically arranged and provided with a splicing frame connected to the ground.

[0023] Preferably, each first sliding member comprises a first plate body and a second plate body arranged in parallel, and the first plate body and the second plate body are respectively connected to the corresponding first guide rail.

[0024] With respect to the above background, the double-suspension CBCT device provided by the utility model comprises a frame, two sets of longitudinal rail assemblies, two sets of hanging bracket assemblies and a detection assembly, the frame is provided with a first guide rail, and a photographing bed set is arranged below the frame; the two sets of longitudinal rail assemblies are movably connected to the first guide rail, and the longitudinal rail assembly is provided with a second guide rail extending along the direction perpendicular to the extension direction of the first guide rail; the two sets of hanging bracket assemblies are movably connected to the corresponding second guide rail, and the hanging bracket assembly is provided with a telescopic arm capable of moving vertically, and the bottom of each telescopic arm is provided with a support capable of rotating around the axis of the corresponding telescopic arm; the detection assembly comprises a detector assembly connected to one support through a rotating shaft and a cow head assembly rotatably connected to the other support through a rotating shaft, and the detector assembly and the cow head assembly can be moved to the two sides of the photographing bed set correspondingly and can rotate around the axis of the corresponding rotating shaft.

[0025] Specifically, the first guide rail, the second guide rail perpendicular to the first guide rail and the telescopic arm capable of moving vertically can realize the movement of the detector assembly and the cow head assembly in three directions at an angle to each other, the support can realize the rotation of the detector assembly and the cow head assembly around the axis of the corresponding telescopic arm, and the rotating shaft can rotate relative to the support and realize the rotation of the detector assembly and the cow head assembly around the axis of the rotating shaft, so that the detector assembly and the cow head assembly can move in five directions, and through the combination of the above movement directions, the detector assembly and the cow head assembly can simultaneously meet the requirements of standing position imaging, lying position imaging and DR imaging, and the use scene of the CBCT device can be expanded to avoid the single use scene of the CBCT device. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only constitute a part of the embodiments of the present application, and do not constitute all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Figure 1 A structure diagram of a double-suspension CBCT device provided by the embodiment of the present application is shown in the figure.

[0028] Figure 2 A structure diagram of the double-suspension CBCT device from another perspective provided by the embodiment of the present application is shown in the figure.

[0029] Figure 3 A structure diagram of the running process of the double-suspension CBCT device provided by the embodiment of the present application is shown in the figure.

[0030] Among them:

[0031] 1-Frame body;

[0032] 2-Longitudinal rail assembly;

[0033] 3-Suspension bracket assembly, 31-Telescopic arm, 32-Supporting piece, 33-Suspension head;

[0034] 41-Detector assembly, 42-Ox head assembly;

[0035] 5-Horizontal bed body, 51-Lifting platform;

[0036] 6-Vertical sheet rack, 61-Splicing rack. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below by combining the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute a part of the embodiments of the present application, and do not constitute all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below by combining the drawings and specific embodiments.

[0039] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated position or element must have a specific orientation, constitute and operate in a specific orientation, so it cannot be understood as a limitation of the utility model.

[0040] The utility model aims at providing a double suspension CBCT device, which can avoid the single use scene of the CBCT equipment, so as to expand the use scene of the CBCT equipment.

[0041] It should be noted that in the drawings, the direction of X is defined as the first direction, the direction of Y is defined as the second direction, and the direction of Z is defined as the third direction. The first direction, the second direction and the third direction are perpendicular to each other. Alpha is the rotation direction of the shaft, and beta is the rotation direction of the support 32.

[0042] Please refer to Figure 1 and Figure 2 To achieve the above object, the utility model provides a double suspension CBCT device, which comprises a frame body 1, two sets of longitudinal rail assemblies 2, two sets of hanging bracket assemblies 3 and a detection assembly.

[0043] The frame body 1 is provided with a first guide rail, and a photography bed group is located below the frame body 1. The photography bed group comprises a horizontal bed body 5 and a vertical film rack 6 arranged at intervals. The horizontal bed body 5 is horizontally arranged and connected to the ground through a lifting platform 51 at one end of the bottom. The vertical film rack 6 is vertically arranged, and the bottom of the vertical film rack 6 is provided with a spliced frame 61 connected to the ground.

[0044] The two sets of longitudinal rail assemblies 2 are movably connected to the first guide rail, and the longitudinal rail assembly 2 is provided with a second guide rail extending along the direction perpendicular to the extension direction of the first guide rail. The first guide rail and the second guide rail are both horizontally arranged, and the second guide rail is located at the bottom of the first guide rail and extends to the outside of the frame body 1 in the second direction.

[0045] The two sets of hanging bracket assemblies 3 are movably connected to the corresponding second guide rails, and the hanging bracket assembly 3 is provided with a telescopic arm 31 capable of moving vertically. The bottom of each telescopic arm 31 is provided with a support 32 capable of rotating around the axis of the corresponding telescopic arm 31.

[0046] The detection assembly comprises a detector assembly 41 connected to one support 32 through a shaft, and a cow head assembly 42 rotatably connected to the other support 32 through a shaft. The detector assembly 41 and the cow head assembly 42 can be moved to both sides of the photography bed group correspondingly and can rotate around the axis of the corresponding shaft.

[0047] The movement of the detector assembly 41 and the cow head assembly 42 in three directions at an angle to each other can be realized through the first guide rail, the second guide rail perpendicular to the first guide rail, and the telescopic arm 31 capable of vertical movement, the rotation of the detector assembly 41 and the cow head assembly 42 around the axis of the corresponding telescopic arm 31 can be realized through the support 32, the rotation relative to the support 32 can be realized through the rotating shaft, and the rotation of the detector assembly 41 and the cow head assembly 42 around the axis of the rotating shaft can be realized, so that the detector assembly 41 and the cow head assembly 42 can move in five directions of X direction, Y direction, Z direction, a direction and β direction, through the combination of the above movement directions, the detector assembly 41 and the cow head assembly 42 can simultaneously meet the standing position imaging, the lying position imaging and the DR imaging, and the use scene of the CBCT equipment can be expanded to avoid the single use scene of the CBCT equipment.

[0048] The frame body 1 is a square frame structure capable of being mounted on a support frame fixed on the wall or ceiling of a machine room, and is formed by connecting two first frame strips extending in a first direction and two second frame strips extending in a second direction end to end. The first guide rail is two and extends in the first direction to be arranged on the corresponding first frame strip. The two installed first guide rails are located on both sides of the frame body 1 in the second direction.

[0049] The longitudinal rail assembly 2 further comprises a first sliding member fixedly connected to the top of the second guide rail, and a plurality of roller assembly groups rotatably connected to the first guide rail are arranged on both sides of the first sliding member in the second direction, so that the longitudinal rail assembly 2 can move in the first direction.

[0050] Each first sliding member comprises a first plate body and a second plate body arranged at intervals, the first plate body and the second plate body are detachably connected to the top of the second guide rail, and the sides opposite to each other of the first plate body and the second plate body are respectively connected to the corresponding first guide rail. In this way, on the basis of ensuring that the longitudinal rail assembly 2 can move in the first direction, the size and the corresponding weight of the first sliding member can be reduced, so as to reduce the load of the frame body 1, and at the same time, more movable space is provided for the hanger assembly 3 connected to the second guide rail.

[0051] Each group of the second guide rail in the hanger assembly 3 is two and extends in the second direction, and the ends of the two second guide rails are connected by a cross bar extending in the first direction to make the second guide rail into a frame structure with both ends sealed. The hanger assembly 3 further comprises a hoisting head 33 connected to the corresponding second guide rail, and a plurality of rolling assembly groups rotatably connected to the second guide rail are arranged on both sides of the hoisting head 33 in the first direction, so that the hanger assembly 3 can move in the second direction.

[0052] The first sliding member is provided with a plurality of first limiting rollers on both sides in the second direction, the first limiting rollers abut against the inner side wall of the first guide rail in the second direction to limit the movement of the first sliding member in the second direction and the third direction; the hoisting head 33 is provided with a second limiting roller on both sides in the first direction, the second limiting roller abuts against the inner side wall of the second guide rail in the first direction to limit the movement of the hoisting head 33 in the first direction and the third direction; thereby ensuring the movement accuracy of the first sliding member on the first guide rail and the movement accuracy of the hoisting head 33 on the second guide rail.

[0053] The first guide rail is provided with a mechanical limiting device at both ends, which can limit the limit movement position of the first sliding member, so that the two first sliding members will not slide out of the first guide rail, ensuring safety; the second guide rail is also provided with a mechanical limiting device at both ends to limit the limit movement position of the hoisting head 33, so that the two hoisting heads 33 will not slide out of the corresponding second guide rail; the first guide rail and the second guide rail are both provided with an electrical limiting device to limit the stroke of the first sliding member and the hoisting head 33, so that the electrical limiting device will be triggered first before the equipment moves and touches the limiting switch, avoiding mechanical collision damage.

[0054] The top of the telescopic arm 31 is connected to the bottom of the corresponding hoisting head 33 to drive the support 32 at the bottom of the telescopic arm 31 to move along the axis direction (third direction) of the telescopic arm 31, the axis of the shaft is perpendicular to the axis of the telescopic arm 31; the support 32 is internally provided with a first power source capable of driving itself to rotate around the axis of the telescopic arm 31, and a second power source capable of driving the shaft to rotate around its axis, to drive the probe assembly 41 and the cow head assembly 42 connected to the corresponding support 32 to rotate in the alpha direction and / or the beta direction.

[0055] In the embodiment, the double-suspension CBCT device further comprises a control module, the first sliding member, the hoisting head 33, the telescopic arm 31, the support 32 and the shaft are all provided with sensors connected to the control module, the first sliding member is connected with a third power source for driving itself to move, the hoisting head 33 is connected with a fourth power source for driving itself to move, the telescopic arm 31 is connected with a fifth power source for driving itself to contract, the control module is connected to the first power source, the second power source, the third power source, the fourth power source and the fifth power source to control the movement position of the probe assembly 41 and the cow head assembly 42, the sensors can detect the position of the corresponding components in each movement direction in real time and feed back the position parameters to the control module to accurately control the movement position of each component.

[0056] In the system, two positions are set as debugging references: one reference is the axis of the splicing frame 61Z direction, when a person stands on the splicing frame 61, the human body center is approximately coincident with the axis of the photography frame; the other reference is the axis of the bed surface Y direction of the horizontal bed body 5 when the horizontal bed body 5 is at the height of m. When the equipment is debugged, the two axes are taken as the reference, and two motion coordinate systems of standing position and lying position can be established.

[0057] Please refer to Figure 3 Taking the vertical film frame 6 as an example, the axis of the splicing frame 61 connected to the vertical film frame 6 in the photography bed group is taken as the reference, the detected person stands and leans against the vertical film frame 6; the cow head assembly 42 and the detector assembly 41 are moved to the same height and located on both sides of the vertical film frame 6, the detector assembly 41 and the cow head assembly 42 are turned on; the detector assembly 41 makes uniform circular motion with the axis of the splicing frame 61 as the center and the radius of R1, the cow head assembly 42 makes uniform circular motion with the axis of the splicing frame 61 as the center and the radius of R2, and the center line of the detector assembly 41 and the cow head assembly 42 passes through the axis of the splicing frame 61.

[0058] The control module can communicate with the workstation, when the doctor selects the related body position photography protocol on the workstation, the control module controls the positions of the hanging frame assembly 3, the cow head assembly 42 and the detector assembly 41 according to the protocol and the position signal to meet the photography requirements, and at the same time, continuous exposure photography is carried out, the workstation reconstructs a series of exposure images to obtain a three-dimensional image, the CBCT device can be used for conventional DR photography while meeting the standing position and bed film position CBCT photography, realizes one machine with multiple functions, and improves the use value of the equipment.

[0059] The control module controls the first sliding member in the longitudinal rail assembly 2 to move along the extension direction of the first guide rail, the hanging head 33 in the hanging frame assembly 3 to move along the extension direction of the second guide rail, and the support 32 to rotate around the axis line of the corresponding telescopic arm 31, so that the detector assembly 41 and the cow head assembly 42 make uniform circular motion with different radii.

[0060] Wherein, the detector assembly 41 makes uniform speed circular motion with the shaft center of the splicing frame 61 as the center and R1 as the radius and t as the time period, the detector assembly 41 support arm length l1 is a fixed value, then the function relationship of the detector assembly 41 in X, Y, β direction about R1, t, l1 can be established, the control module outputs power supply parameter control through the function relationship to control the driving module including the first power source, the second power source, the third power source, the fourth power source and the fifth power source, so that the detector assembly 41 realizes the above-mentioned circular motion track. Similarly, the bull head assembly 42 can also establish the motion function relationship about motion radius R2, time period t2 and arm length l2, and realize the circular motion of the bull head assembly 42 through the control module. The central angle corresponding to the respective circular motion of the detector assembly 41 and the bull head assembly 42 is preferably 0-270°, which can also be adjusted according to the actual situation, as long as the above-mentioned purpose can be achieved.

[0061] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0062] The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0063] The principle and implementation mode of the present application are described by applying specific examples in the present specification, and the above embodiment description is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A dual-suspension CBCT apparatus, characterized by, The utility model relates to a kind of medical imaging equipment, including: Frame body, which is provided with first guide rail, and photographic bed group is located below the frame body; Two groups of longitudinal rail assemblies are movably connected to the first guide rail, and the longitudinal rail assemblies are provided with second guide rails extending in a direction perpendicular to the extending direction of the first guide rail; Two groups of hanging bracket assemblies are movably connected to the corresponding second guide rails, and the hanging bracket assemblies are provided with telescopic arms capable of vertical movement, and the bottoms of the two telescopic arms are provided with supports capable of rotating around the axes of the corresponding telescopic arms; The detection assembly includes a detector assembly connected to one of the supports through a rotating shaft and a cow head assembly rotatably connected to the other support through a rotating shaft, and the detector assembly and the cow head assembly can be moved to both sides of the photographic bed group and can rotate around the axes of the corresponding rotating shafts.

2. The dual-suspension CBCT apparatus of claim 1, wherein, The first guide rail is two and extends in a first direction, and the two first guide rails are located on both sides of the frame body in a second direction, and the first direction is perpendicular to the second direction; The longitudinal rail assembly further includes a first sliding member fixedly connected to the top of the second guide rail, and the first sliding member is provided with a plurality of roller assemblies rotatably connected to the first guide rail on both sides in the second direction, so that the longitudinal rail assembly can move in the first direction.

3. The dual-suspended CBCT apparatus of claim 2, wherein, The second guide rail in each group of hanging bracket assemblies is two and extends in the second direction, and the hanging bracket assembly further includes a lifting head connected to the corresponding second guide rail, and the lifting head is provided with a plurality of rolling assemblies rotatably connected to the second guide rail on both sides in the first direction, so that the hanging bracket assembly can move in the second direction. The top of the telescopic arm is connected to the bottom of the corresponding lifting head to drive the support at the bottom of the telescopic arm to move along the axis of the telescopic arm.

4. The dual-suspended CBCT apparatus of claim 3, wherein, The first sliding member is provided with a plurality of first limiting rollers on both sides in the second direction, and the first limiting rollers abut against the inner side walls of the first guide rail in the second direction to limit the movement of the first sliding member in the second direction. The lifting head is provided with a second limiting roller on both sides in the first direction, and the second limiting roller abuts against the inner side wall of the second guide rail in the first direction to limit the movement of the lifting head in the first direction.

5. The dual-suspension CBCT apparatus of claim 3, wherein, The axis of the rotating shaft is perpendicular to the axis of the telescopic arm. The support is provided with a first power source capable of driving itself to rotate around the axis of the telescopic arm and a second power source capable of driving the rotating shaft to rotate around its axis, so as to drive the detector assembly and the cow head assembly connected to the corresponding support to rotate.

6. The dual-suspension CBCT apparatus of claim 3, wherein, The first guide rail and the second guide rail are both provided with electrical limiting devices to limit the travel of the first sliding member and the lifting head.

7. The dual-suspension CBCT apparatus of claim 5, wherein, The control module is signal connected with the first sliding member, the hoisting head, the telescopic arm, the support and the rotating shaft.

8. The dual-suspension CBCT apparatus of claim 1, wherein, The photographic bed set comprises horizontally arranged horizontal bed bodies and vertically arranged vertical film racks, the horizontal bed bodies are connected with the ground through lifting platforms at one end, the vertical film racks are vertically arranged, and the bottom of the vertical film racks is provided with a splicing frame connected with the ground.

9. The dual-suspension CBCT apparatus of claim 2, wherein, Each first sliding member comprises first and second plate bodies arranged at intervals, and the first and second plate bodies are connected with the corresponding first guide rails at the opposite sides.

Images