A winding structure and a CT adopting the winding structure

Abstract

The present invention provides a winding structure and a CT using the winding structure. The winding structure has a rotating shaft; a driving unit is connected to the rotating shaft; a first baffle and a second baffle are respectively fixed on opposite sides of the rotating shaft, and the second baffle and the first baffle form a V-shaped or inverted trapezoidal groove, and the rotating shaft is accommodated in the groove; both ends of the cable are respectively fixed to the rotating shaft and the bottom of the groove. The CT using the winding structure further includes a CT turntable, an X-ray generator and a detector. The present invention can prevent the cable from swinging and winding randomly, can quickly accommodate the cable in the groove, and the CT can improve the stability of the CT system, reduce the system control difficulty and the structural complexity, and reduce the cost on the premise of ensuring a relatively fast scanning speed and a suitable scanning angle.

Description

Technical Field

[0001] The present invention relates to an auxiliary structure for a medical imaging device, and more particularly to a wire winding structure and a CT using the wire winding structure. Background Art

[0002] Computed tomography (CT) is a non-destructive imaging technique that uses an X-ray cable drag chain to scan a certain thickness of a specific part of an animal body or a prosthesis. The data obtained from the scan is used for image reconstruction to obtain an internal structure image of the scanned object, and it is widely used in industries, security inspections, medical and health care, and biomedical fields. Especially in the field of small animal imaging, CT is an effective means for in vivo biological detection at the whole body level of small animals.

[0003] Common CT devices mainly include three parts: a scanning part, a computer system, and an image display system. Among them, the scanning part includes an X-ray generator, a detector, and a scanning frame. The X-ray generator and the detector are arranged on opposite sides of the scanned object. The computer system is used to collect the information data of the detector and perform storage and calculation, and the image display system is used to display the image processed and reconstructed by the computer system on a display.

[0004] During the operation of a CT device, the X-ray generator and the detector need to rotate at high speed around the scanned object for data acquisition or rotate and scan the region of interest of the scanned object along a special orbit. However, since the X-ray generator and the detector are in a high-speed rotating state during operation, how to stably supply power and communicate with them is particularly important. In existing technical solutions, the X-ray generator and the detector can be powered and communicated through slip rings or through cables. For CT devices using slip rings, the stability of the slip rings is poor, the noise is large, and the cost is high; for CT devices using cables, a complex cable coiling mechanism is often used to ensure that the cables do not get twisted, pulled, or detached within a certain rotation angle, which makes the rotating parts of the CT device can only rotate forward and backward alternately. Moreover, in order to realize the collection and release of the cables, an additional power source often needs to be added, which increases the control difficulty and the structural complexity of the device. Summary of the Invention

[0005] The object of the present invention is to provide a wire winding structure and a CT using the wire winding structure, so as to solve the problems of complex wire winding structure, low stability, and high cost of CT devices in the prior art.

[0006] To solve the above technical problems, the technical solution of the present invention is to provide a winding structure, which includes: a rotating shaft; a driving unit connected to the rotating shaft; a first baffle; a second baffle, the second baffle and the first baffle are respectively fixed on opposite sides of the rotating shaft, the second baffle and the first baffle form a V-shaped or inverted trapezoidal groove, and the rotating shaft is accommodated in the groove; and a cable, both ends of the cable are respectively fixed to the rotating shaft and the bottom of the groove.

[0007] According to an embodiment of the present invention, the winding structure further includes a cable drag chain, both ends of the cable drag chain are respectively fixed to the rotating shaft and the bottom of the groove, and the cable drag chain is combined with the cable to form an integral body.

[0008] According to an embodiment of the present invention, the lengths of the cable drag chain and the cable match the rotation angle of the rotating shaft.

[0009] According to an embodiment of the present invention, the first baffle and the second baffle form an included angle between 20° and 60°.

[0010] According to an embodiment of the present invention, the first baffle and the second baffle are in the shape of a curved panel or a folded line panel.

[0011] According to an embodiment of the present invention, the winding structure further includes: a third baffle connected to the first baffle; a fourth baffle connected to the second baffle; and a fifth baffle connected to the third baffle and the fourth baffle, the third baffle, the fourth baffle and the fifth baffle form a rectangular groove.

[0012] According to an embodiment of the present invention, the winding structure further includes a fifth baffle connecting the first baffle and the second baffle, and the width of the groove gradually increases starting from the fifth baffle.

[0013] According to an embodiment of the present invention, the rotation angle range of the rotating shaft is -90° to 450°.

[0014] According to an embodiment of the present invention, the winding structure further includes two relatively arranged panels, and the panels, together with the first baffle and the second baffle, form a box-shaped space.

[0015] The present invention also provides a CT adopting the above-mentioned wire winding structure, and the CT further includes: a CT turntable fixed on a rotating shaft; an X-ray generator disposed on the CT turntable; and a detector disposed on the CT turntable and opposite to the X-ray generator, the detector receiving the X-ray emitted by the X-ray generator and converting it into an electrical signal, and cables being electrically connected and / or communicatively connected to the X-ray generator and the detector respectively.

[0016] According to an embodiment of the present invention, the CT further includes a frame, the rotating shaft is fixed on the frame, and the rotating shaft and the CT turntable rotate relative to the frame.

[0017] According to an embodiment of the present invention, a first baffle and a second baffle are fixed on the frame.

[0018] According to an embodiment of the present invention, the CT further includes a CT origin sensor fixed on the frame to measure the rotation position of the CT turntable.

[0019] According to an embodiment of the present invention, the CT further includes a moving device and / or a position adjusting device disposed at the bottom of the frame.

[0020] According to an embodiment of the present invention, the CT further includes a control device, and the control device controls the rotation angle of the rotating shaft and the X-ray generator and the detector.

[0021] The wire winding structure provided by the present invention can prevent the cables from swinging and winding randomly, and can quickly store the cables in the groove. The CT adopting this wire winding structure provided by the present invention is particularly suitable for small animal CT, and can improve the stability of the small animal CT system, reduce the system control difficulty and the structural complexity, and thus reduce the cost on the premise of ensuring a relatively fast scanning speed and a suitable scanning angle of the small animal CT. Description of the Drawings

[0022] 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 required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a front three-dimensional schematic diagram of a CT adopting a wire winding structure according to an embodiment of the present invention;

[0024] Figure 2 is according toFigure 1 Schematic three-dimensional view of the back of a CT with a winding structure

[0025] Figure 3 is based on Figure 1 Schematic plan view of the gantry and baffle of a CT with a winding structure, where the CT turntable is not shown

[0026] Figure 4 is based on Figure 3 Schematic side view of the gantry and baffle of a CT with a winding structure

[0027] Figure 5 is based on Figure 1 Front view of a CT with a winding structure, where the cable carrier is in the 0° initial position

[0028] Figure 6 is based on Figure 1 Back view of a CT with a winding structure, where the cable carrier is in the -90° position

[0029] Figure 7 is based on Figure 6 Back view of a CT with a winding structure, where the cable carrier is in the 90° position

[0030] Figure 8 is based on Figure 6 Back view of a CT with a winding structure, where the cable carrier is in the 180° position

[0031] Figure 9 is based on Figure 6 Back view of a CT with a winding structure, where the cable carrier is in the 270° position

[0032] Figure 10 is based on Figure 6 Back view of a CT with a winding structure, where the cable carrier is in the 360° position

[0033] Figure 11 is based on Figure 6 Back view of a CT with a winding structure, where the cable carrier is in the 450° position Detailed implementation manners

[0034] The following further describes the present invention in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0035] It should be noted that when a component / part is referred to as being "disposed on" another component / part, it can be directly disposed on the other component / part or there may also be an intermediate component / part. When a component / part is referred to as being "connected / coupled" to another component / part, it can be directly connected / coupled to the other component / part or there may be an intermediate component / part at the same time. The term "connected / coupled" used herein may include electrical and / or mechanical physical connection / coupling. The term "comprising / including" used herein means the presence of features, steps or components / parts, but does not exclude the presence or addition of one or more other features, steps or components / parts. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0037] In addition, in the description of this application, terms such as "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects, and there is no sequence between them, nor can it be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] Figure 1 is a three-dimensional schematic diagram of a CT adopting a winding structure according to an embodiment of the present invention. Figure 2 According to Figure 1 Another three-dimensional schematic diagram of the CT adopting the winding structure, by Figure 1 Combined with Figure 2It can be seen that the CT adopting a winding structure provided by the present invention includes a frame 1, a CT turntable 2, a CT rotating shaft 3, a cable 5, and a winding structure 6. Among them, the frame 1 is a frame structure; the CT turntable 2 is in the shape of a disc with a circular opening in the middle; the CT rotating shaft 3 is in the shape of a cylinder and is arranged on the CT turntable 2. The centers of the CT rotating shaft 3 and the CT turntable 2 coincide and have a common circular opening. The axial direction of the CT rotating shaft 3 is perpendicular to the plane where the CT turntable 2 is located. The CT rotating shaft 3 is arranged on the frame 1 through a support, and the CT rotating shaft 3 and the CT turntable 2 can rotate relative to the frame 1 under the action of an external force; the cable 5 is on the same side of the CT turntable 2 as the CT rotating shaft 3. One end of the cable 5 is fixed on the frame 1, and the other end of the cable 5 is fixed on the side wall of the CT rotating shaft 3; the winding structure 6 includes two baffles 61 and 62. The two baffles 61 and 62 are located between the CT turntable 2 and the frame 1. The two baffles 61 and 62 are symmetrically arranged about the center of the CT turntable 2 and are respectively located on opposite sides of the CT rotating shaft 3. The two baffles 61 and 62 form a "V"-shaped structure or an inverted trapezoidal structure similar to a groove, that is, the distance between one end of the two baffles 61 and 62 is narrower and the distance between the other end is wider. The cable 5 is generally accommodated in the "V"-shaped groove or the inverted trapezoidal structure.

[0039] More specifically, in Figure 1 - Figure 2 the specific embodiment, the frame 1 is a frame structure formed by rods, plates, etc. Several flat table surfaces can be arranged on the frame 1 to support or place other components. For example, opposite first platform 11 and second platform 12 are also arranged on the frame 1. The first platform 11 and the second platform 12 are connected into a whole by several rods. This belongs to the conventional technical means in the art and will not be elaborated here. Those skilled in the art should understand that the shape of the frame 1 can also be changed according to actual needs, and this is only an example rather than a limitation here. A plurality of universal wheels 13 are installed on the second platform 12 of the frame 1 to facilitate the movement of the position of the frame 1, and a plurality of lifting supports 14 are also installed on the second platform 12 of the frame 1 to facilitate the adjustment of the position of the frame 1.

[0040] Furthermore, in Figure 1 - Figure 2 the specific embodiment, a plurality of reserved holes 21 are arranged on the CT turntable 2 for installing various components, such as an X-ray generator 22 and a detector 25. Among them, the X-ray generator 22 is fixed on a bracket 23, and the bracket 23 is fixed on the reserved hole 21 of the CT turntable 2 through bolts. The detector 25 and the X-ray generator 22 are arranged approximately symmetrically about the center of the CT turntable 2. The detector 25 is used to receive the X-ray emitted by the X-ray generator 22 and convert it into an electrical signal for output, which will not be elaborated here. The CT turntable 2 can rotate clockwise or counterclockwise around the center under the action of an external force. The external force can be a commonly used driving device in the art, such as a motor, etc., which will not be elaborated here.

[0041] More specifically, in Figure 1 - Figure 2 the specific embodiment, the CT rotating shaft 3 can integrate a driving device, a power supply device, and a communication device. The driving device is used to drive the CT rotating shaft 3 and the CT turntable 2 to rotate. The power supply device is used to provide power support for the driving device, the X-ray generator 22, the detector 25 and other components. The communication device is used to provide communication support for the X-ray generator 22 and the detector 25 and other components to facilitate signal transmission. This is consistent with the commonly used CT principle in the art and will not be elaborated here. It should be noted that a first cable connector (not shown in the figure) is provided on the outer side of the CT rotating shaft 3 to facilitate the fixed connection between the cable 5 and the CT rotating shaft 3. A second cable connector (not shown in the figure) is provided on the frame 1 to facilitate the fixed connection between the cable 5 and the frame 1. The cable 5 can include several wires, and corresponding connectors can be provided at both ends of each wire. Several connectors can together form the first / second cable connector. For example, the first cable connector includes several connectors respectively for connecting the X-ray generator 22, the detector 25, and the remaining devices on the CT turntable 2 that need power supply or signal transmission. The second cable connector includes several connectors respectively for connecting the power supply device and the signal receiving / transmitting device. The cable 5 is fixed to the CT rotating shaft 3 and the frame 1 through the first cable connector and the second cable connector respectively. Since the cable 5, the CT rotating shaft 3, and the frame 1 are all located on the same side of the CT turntable 2, and the cable 5 has a certain length, the cable 5 is generally wound around the CT rotating shaft 3.

[0042] Furthermore, in Figure 1 - Figure 2In a specific embodiment, the winding structure further includes a cable drag chain 4. First drag connectors 41 and second drag connectors 42 are respectively arranged at two ends of the cable drag chain 4. The first drag connector 41 and the second drag connector 42 are respectively connected to the first cable connector and the second cable connector to facilitate the fixation of the cable drag chain 4. The cable drag chain 4 is combined with the cable 5 and forms an integral body. The specific combination methods may include the following forms: the cable 5 is fixed in the cable drag chain 4 through cable ties, the cable drag chain 4 covers the cable 5, the cable 5 is fixed to the cable drag chain 4 through other components, or the cable drag chain 4 and the cable 5 are integrally formed, etc. This is only an example rather than a limitation here. The cable drag chain 4 is made of flexible material, and the first drag connector 41 and the second drag connector 42 at its two ends can be made in the form of plugs / sockets to facilitate connection with the CT rotating shaft 3, the frame 1 or other external components. The lengths of the cable drag chain 4 and the cable 5 match the number of rotation circles or the rotation angle of the CT turntable 2. For example, in this embodiment, the maximum continuous rotation angle of the CT turntable 2 is 450 degrees, that is, the cable drag chain 4 needs to wind one and a half circles along the outer diameter of the CT rotating shaft 3. Considering a suitable redundant length, the lengths of the cable 5 and the cable drag chain 4 are about 2.4 meters to 3 meters, preferably 2.5 meters. If the lengths of the cable drag chain 4 and the cable 5 are too short, the cable will break, and if they are too long, unnecessary swinging and material waste will occur. It should be noted that since the X-ray generator 22 and the detector 25 and the cable drag chain 4 are respectively arranged on two opposite sides of the CT turntable 2, in order to smoothly realize the connection between the cable 5 and the X-ray generator 22 and the detector 25, an opening 24 is also provided on the CT turntable 2, and the cable 5 passes through the CT turntable 2 through the opening 24 to facilitate connection with the X-ray generator 22 and the detector 25. Since all the cables 5 are placed in the cable drag chain 4, when extending from the first drag connector 41, it needs to be twisted by 90 degrees so that the cable 5 can smoothly pass through the CT turntable 2.

[0043] In addition, in Figure 1 - Figure 2 the embodiment of, the CT adopting the winding structure further includes a CT origin sensor fixing bracket 8 and a CT origin sensor 81. Among them, the CT origin sensor fixing bracket 8 is fixed along the vertical direction on the support of the CT rotating shaft 3, the CT origin sensor 81 is arranged at the top of the CT origin sensor fixing bracket 8, and the CT origin sensor 81 is also located at the top of the CT turntable 2 to facilitate detecting whether the CT turntable 2 reaches the origin. After the CT turntable 2 reaches the origin, the CT origin sensor 81 will generate a trigger signal to facilitate motion control.

[0044] Furthermore, Figure 3 is the schematic plan view of the frame 1 and the baffle of the CT adopting the winding structure according to Figure 1 Figure 4 is according to Figure 3Schematic side view of the gantry 1 and the baffle of the CT with a winding structure, from Figure 3 , Figure 4 Combined with Figure 1 , Figure 2 it can be seen that the winding structure 6 includes a first baffle 61, a second baffle 62, a third baffle 63, a fourth baffle 64 and a fifth baffle 65. Among them, the first baffle 61 and the third baffle 63 are symmetrically arranged with the second baffle 62 and the fourth baffle 64 respectively. The first baffle 61 is connected to the third baffle 63, the second baffle 62 is connected to the fourth baffle 64, the fifth baffle 65 is connected to the ends of the third baffle 63 and the fourth baffle 64. The first baffle 61 and the second baffle 62 form a V-shaped groove with a gradually increasing opening width, and the third baffle 63, the fourth baffle 64 and the fifth baffle 65 form a rectangular groove. The third baffle 63 and the fourth baffle 64 are fixed on the gantry 1, and all the baffles are located between the CT turntable 2 and the gantry 1, so as to form a flat box-shaped space by means of the gantry 1 and the CT turntable 2. The second drag link joint 42 is fixed to one end of the fifth baffle 65 close to the second baffle 62. The first drag link joint 41 is located on one side of the CT rotation axis 3 close to the second baffle 62 in the initial state, so that the cable drag chain 4 and the cable 5 are wound around the CT turntable 3 in a "Z" - shaped posture and accommodated in the above box-shaped space. Since the first baffle 61 and the second baffle 62 form a "V" - shaped structure, and the cable drag chain 4 and the cable 5 are wound around the CT rotation axis 3. When the CT turntable 2 and the CT rotation axis 3 rotate, whether rotating clockwise or counterclockwise around the rotation axis, the cable drag chain 4 can be driven to swing by the CT rotation axis 3 and the first drag link joint 41. When the cable drag chain 4 touches the baffle 61 / 62 during the swing, it rebounds into the V - shaped groove, and further moves towards the narrower part of the groove with the rotation of the CT rotation axis 3 and the action of gravity, and automatically folds on the fifth baffle 65, finally avoiding problems such as winding and irregular swinging of the cable and the cable drag chain.

[0045] Those skilled in the art should understand that the first baffle 61 and the second baffle 62 can also be arranged asymmetrically. For example, the first baffle 61 is inclined 10 degrees away from the center of the CT turntable 2 relative to the vertical direction, and the second baffle 62 is inclined 20 degrees away from the center of the CT turntable 2 relative to the vertical direction. At this time, the two baffles 6 still form a "V" - shaped structure, and the included angle of this V - shaped structure is 30 degrees. Preferably, the first baffle 61 and the second baffle 62 are symmetrically arranged and the angle range of the included angle between the two is 20° - 60°, that is, the included angle between the first baffle 61 and the vertical direction is 10° - 30°, and the included angle between the second baffle 62 and the vertical direction is 10° to 30°. Those skilled in the art also need to note that the lengths of the first baffle 61 and the second baffle 62 can be the same or different, as long as a V - shaped groove can be formed, which will not be elaborated here. At the same time, the first baffle 61 and the second baffle 62 can also be split into multiple parts according to actual needs, and multiple baffles are connected at different angles, or the first baffle 61 and the second baffle 62 are set as curved panels and other shapes, such as arc plates, etc.

[0046] In addition, in order to save costs, the third baffle 63 and the fourth baffle 64 can also not be used, and the first baffle 61 and the second baffle 62 are respectively connected to the fifth baffle 65 to form an inverted trapezoidal shape. Or only the first baffle 61 and the second baffle 62 are used to form a V - shaped shape. At this time, the rectangular groove formed by the third baffle 63, the fourth baffle 64 and the fifth baffle 65 disappears, and the position of the second drag link connector 42 is also adjusted accordingly.

[0047] The following combines Figure 5 - Figure 11 Describe the working principle of the CT with a winding structure according to the present invention. Since the CT turntable 2 is fixed on the CT rotating shaft 3, a synchronous pulley (not shown in the figure) is installed on the CT rotating shaft 3, and the synchronous pulley on the CT rotating shaft 3 forms a transmission with the synchronous pulley on the motor, and the motor drives the CT rotating shaft 3 and the CT turntable 2 to rotate. At the same time, the CT origin sensor 81 monitors the position of the CT turntable 2 and sends the position information to the control device (not shown in the figure), and the control device controls the operation of the motor.

[0048] As Figure 5 shown, this position is the initial position or the origin position of the CT with a winding structure. Among them, the first drag link connector 41 is located on the horizontal plane near the second baffle 62, and the cable drag chain 4 and the cable 5 are wound and extended from the upper part of the CT rotating shaft 3. The second drag link connector 42 at the other end of the cable drag chain 4 is arranged diagonally with the first drag link connector 41. At this time, after the CT device is turned on, the CT turntable 2 reaches the origin position after the return - to - origin process.

[0049] As Figure 6As shown, after the CT turntable 2 reaches the origin position, it rotates counterclockwise for two seconds to leave enough acceleration range. At this time, the first drag link head 41 moves to the vertical position and is located at the middle position of the bottom of the V-shaped groove. The length of the cable carrier 4 and the cable 5 wound around the CT rotating shaft 3 further increases, and the redundant length of the cable carrier 4 in the rectangular groove is pulled up. At this time, the CT device completes the preparation process before acceleration. After that, the CT turntable 2 rotates clockwise and completes the acceleration process before reaching the origin position shown in Figure 5 When the CT device reaches the origin position shown in Figure 5 for the second time, the scanning process is started, and the control device controls the X-ray generator 22 and the detector 25 to work and collect information.

[0050] As Figure 7 shown, the CT turntable 2 continues to rotate clockwise by 90°. At this time, the cable carrier 4 is at the 90° position. The first drag link head 41 moves to the vertical position and is located at the middle position of the top of the CT rotating shaft 3. The length of the cable carrier 4 and the cable 5 wound around the CT rotating shaft 3 shortens, and the redundant length of the cable carrier 4 in the rectangular groove moves into the rectangular groove under the action of gravity.

[0051] As Figure 8 shown, the CT turntable 2 continues to rotate clockwise by 180°. At this time, the cable carrier is at the 90° position. The first drag link head 41 moves to the position close to the first baffle 61 on the horizontal plane. The length of the cable carrier 4 and the cable 5 wound around the CT rotating shaft 3 basically disappears. The cable carrier 4 and the cable 5 move outwards under the action of centrifugal force and contact the first baffle 61. The first baffle 61 limits the swing amplitude of the cable carrier 4 and the cable 5 and applies a reverse acting force to it, causing the cable carrier 4 to stack into the rectangular groove under the action of gravity and the second baffle 62.

[0052] As Figure 9 shown, the CT turntable 2 continues to rotate clockwise by 270°. At this time, the cable carrier 4 is at the 270° position. The first drag link head 41 moves to the vertical position and is located at the middle position of the bottom of the CT rotating shaft 3. The cable carrier 4 and the cable 5 are stacked in the rectangular groove.

[0053] As Figure 10 shown, the CT turntable 2 continues to rotate clockwise by 360°. The cable carrier is at the 360° position. The cable carrier 4 and the cable 5 are pulled up from the rectangular groove, and the CT scanning process is completed. In order to ensure that 360-degree data is fully collected during the CT scanning process, the CT rotation angle during the scanning process is set to be slightly greater than 360 degrees, and usually preferably 361 degrees clockwise rotation is selected.

[0054] As Figure 11As shown, after the CT turntable 2 completes scanning, it needs to continue rotating and start decelerating. When it reaches the position of 450°, the CT turntable 2 completes deceleration and relatively stops, and waits for the arrival of the reset command to start reverse movement and reset for the next scan. The movement process of the cable carrier 4 will not be elaborated.

[0055] Since the CT turntable accelerates from -90° to 0°, scans from 0° to 360°, and decelerates from 360° to 450°, in order to ensure sufficient acceleration space and retrieval space for the CT turntable, the lengths of the cable carrier 4 and the cable 5 need to be able to satisfy the rotation of the CT turntable from -90° to 450°. Because the length of the cable carrier is limited, the CT turntable can only rotate within a limited angle range. Beyond the limit range, it will have a pulling effect on the cable carrier and the cable, damaging their lifespan or even causing safety accidents. In addition, when the CT suddenly stops, the limit position plays an essential role in quickly and accurately finding the origin position of the CT disk. Therefore, in the embodiment of the present invention, the effective angle range of the CT is -90° to 450°, which greatly exceeds the range of one circle.

[0056] The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Various changes can be made to the above embodiments of the present invention. That is, all simple, equivalent changes and modifications made according to the claims and the content of the specification of the present invention application fall within the scope of the claims of the present invention patent. The content not elaborated in the present invention is all conventional technical content.

Claims

1. A winding structure, characterized in that, the winding structure is used for a CT, and the winding structure comprises: a rotating shaft, the rotating shaft is in a cylindrical shape, and a CT turntable is fixed thereon; a driving unit, the driving unit is connected to the rotating shaft; a first baffle; a second baffle, the second baffle and the first baffle are respectively fixed on opposite sides of the rotating shaft, the second baffle and the first baffle form a V-shaped or inverted trapezoidal groove, the rotating shaft is accommodated in the groove, and the included angle between the first baffle and the second baffle is between 20° and 60°; a cable, both ends of the cable are respectively fixed to the rotating shaft and the bottom of the groove; and a fifth baffle, the width of the groove gradually increases starting from the fifth baffle.

2. The winding structure according to claim 1, characterized in that, the winding structure further comprises a cable drag chain, both ends of the cable drag chain are respectively fixed to the rotating shaft and the bottom of the groove, and the cable drag chain is combined with the cable to form an integral body.

3. The winding structure according to claim 2, characterized in that, drag link joints are arranged at both ends of the cable drag chain, and the cable drag chain is fixed through the drag link joints.

4. The winding structure according to claim 1, characterized in that, the first baffle and the second baffle are in a curved panel shape or a folded line panel shape.

5. The winding structure according to claim 1, characterized in that, the winding structure further comprises: a third baffle, the third baffle is connected to the first baffle; a fourth baffle, the fourth baffle is connected to the second baffle; the fifth baffle is connected to the third baffle and the fourth baffle, and the third baffle, the fourth baffle and the fifth baffle form a rectangular groove.

6. The winding structure according to claim 1, characterized in that, the fifth baffle is connected to the first baffle and the second baffle.

7. The winding structure according to claim 1, characterized in that, the rotation angle range of the rotating shaft is -90° to 450°.

8. The winding structure according to claim 2, characterized in that, the lengths of the cable drag chain and the cable match the rotation angle of the rotating shaft.

9. The winding structure according to claim 1, characterized in that, the winding mechanism further comprises two relatively arranged panels, and the panels, together with the first baffle and the second baffle, form a box-shaped space.

10. A CT using the winding structure according to any one of claims 1-9, characterized in that, the CT further comprises: a CT turntable, the CT turntable is fixed on the rotating shaft; an X-ray generator, the X-ray generator is arranged on the CT turntable; and a detector, the detector is arranged on the CT turntable and is arranged opposite to the X-ray generator, the detector receives the X-ray emitted by the X-ray generator and converts it into an electrical signal, and the cable is electrically connected and / or communicatively connected to the X-ray generator and the detector respectively.

11. The CT according to claim 10, characterized in that, The CT further includes a gantry, the rotating shaft is fixed to the gantry, and the rotating shaft and the CT turntable rotate relative to the gantry.

12. The CT according to claim 11, wherein, The first baffle and the second baffle are fixed to the gantry.

13. The CT according to claim 11, wherein, The CT further includes a CT origin sensor, and the CT origin sensor is fixed to the gantry to measure the rotation position of the CT turntable.

14. The CT according to claim 11, wherein, The CT further includes a moving device and / or a position adjusting device provided on the gantry.

15. The CT according to claim 10, wherein, The CT further includes a control device, and the control device controls the rotation angle of the rotating shaft and the X-ray generator and the detector.

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