WO2020087936A1

WO2020087936A1 - Winding structure and ct device adopting same

Info

Publication number: WO2020087936A1
Application number: PCT/CN2019/090907
Authority: WO
Inventors: 刘煜; 郭彦彬; 华越轩; 孙意成; 谢庆国
Original assignee: 苏州瑞派宁科技有限公司
Priority date: 2018-11-01
Filing date: 2019-06-12
Publication date: 2020-05-07
Also published as: CN109149498A

Abstract

The present invention provides a winding structure and a CT device adopting the same. A rotating shaft of the winding structure is cylindrical. A drive unit is connected to the rotating shaft. A first stop plate and a second stop plate are respectively fixed on opposite sides of the rotating shaft, the second stop plate and the first stop plate form a V-shaped or inverted trapezoidal recess, and the rotating shaft is accommodated in the recess. Two ends of a cable are respectively fixed on the rotating shaft and at the bottom of the recess. The CT device further comprises a CT turntable, an X-ray generator, and a detector. The present invention can prevent a cable from swinging and winding at random, and can quickly store the cable in the recess. The CT device can improve the stability of a CT system while ensuring a fast scanning speed and an appropriate scanning angle, and reduce the control difficulty and structural complexity of the system and reduce costs.

Description

A winding structure and CT using the winding structure

Technical field

The invention relates to an auxiliary structure of a medical imaging apparatus, and more particularly to a winding structure and a CT using the winding structure.

Background technique

Computerized tomography (computed tomography, CT for short) is a non-destructive imaging technology that uses X-ray cable drag chain to scan a certain thickness layer of a specific part such as an animal or a prosthesis, and uses the data obtained by scanning to reconstruct Obtaining images of the internal structure of scanned objects is widely used in industrial, security, medical and biomedical fields, especially in the field of small animal imaging. CT is an effective method for biological detection at the whole body level of small animals.

Common CT equipment mainly includes 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 rack. The computer system is used to collect the information data of the detector and perform storage operations. The image display system is used to display the image processed and reconstructed by the computer system on the display.

During the operation of the CT equipment, the X-ray generator and the detector need to rotate around the scanning object at high speed for data acquisition or to rotate and scan the region of interest of the scanning object according to a special track. However, since the X-ray generator and detector are in a high-speed rotation state during operation, how to provide stable power supply and communication is particularly important. In the existing technical solutions, the X-ray generator and the detector can be powered and communicated through a slip ring or through a cable. For CT equipment using slip rings, the slip ring has poor stability, high noise and high cost; CT equipment that uses cables often uses a complex cable crimping mechanism to ensure that the cable does not twist, pull, or fall off within a certain rotation angle. This makes the rotating parts of the CT equipment only positive and negative. Rotate alternately. In addition, in order to realize the collection and release of cables, it is often necessary to add an additional power source, which increases the difficulty of controlling the equipment and the complexity of the structure.

Summary of the invention

An object of the present invention is to provide a winding structure and a CT using the winding structure, so as to solve the problems of the complicated winding structure, low stability and high cost of the CT equipment in the prior art.

In order to solve the above technical problem, the technical solution of the present invention is to provide a winding structure including: a rotating shaft, the rotating shaft is cylindrical; 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 are formed In a V-shaped or inverted trapezoidal groove, the rotating shaft is accommodated in the groove; and a cable, and both ends of the cable are respectively fixed to the rotating shaft and the bottom of the groove.

According to an embodiment of the present invention, the winding structure further includes a cable drag chain, two ends of the cable drag chain are respectively fixed to the rotating shaft and the bottom of the groove, the cable drag chain and the The cables are combined into a whole.

According to an embodiment of the present invention, a drag chain connector is provided at both ends of the cable drag chain, and the cable drag chain is fixed by the drag chain connector.

According to an embodiment of the invention, the angle between the first baffle and the second baffle is between 20 ° and 60 °.

According to an embodiment of the present invention, the first baffle plate and the second baffle plate are in the shape of a curved plate or a broken-line plate.

According to an embodiment of the present invention, the winding structure further includes: a third baffle, the third baffle is connected to the first baffle; a fourth baffle, the fourth baffle and the second Baffle connection; and a fifth baffle, the fifth baffle is connected to the third baffle and the fourth baffle, the third baffle, the fourth baffle and the fifth The baffle forms a rectangular groove.

According to an embodiment of the present invention, the winding structure further includes a fifth baffle, the fifth baffle connects the first baffle and the second baffle, and the width of the groove is from the fifth The baffle began to gradually increase.

According to an embodiment of the present invention, the rotation angle of the rotation shaft ranges from -90 ° to 450 °.

According to an embodiment of the present invention, the length of the cable drag chain and the cable match the rotation angle of the rotation shaft.

According to an embodiment of the present invention, the winding mechanism further includes two oppositely disposed panels, and the panels are formed into a box-shaped space together with the first baffle and the second baffle.

The present invention also provides a CT using the winding structure described in any one of the above, the CT further includes: a CT turntable, the CT turntable is fixed on a rotating shaft; an X-ray generator, the X-ray generator is provided in The CT turntable; and a detector, the detector is disposed on the CT turntable and is opposite to the X-ray generator, the detector receives X-rays emitted by the X-ray generator and converts to Electrical signals and cables are electrically connected and / or communicatively connected to the X-ray generator and the detector, respectively.

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

According to an embodiment of the present invention, the first baffle and the second baffle are fixed on the rack.

According to an embodiment of the present invention, the CT further includes a CT origin sensor, the CT origin sensor is fixed on the gantry to measure the rotational position of the CT turntable.

According to an embodiment of the present invention, the CT further includes a moving device and / or a position adjusting device provided on the gantry.

According to an embodiment of the present invention, the CT further includes a control device that controls the rotation angle of the rotation axis and the X-ray generator and the detector.

The winding structure provided by the invention can prevent the cable from swinging and winding at will, and can quickly receive the cable in the groove. The CT provided with the winding structure provided by the present invention is especially suitable for small animal CT, and can improve the stability of the small animal CT system and reduce the system control under the premise of ensuring the rapid scanning speed and appropriate scanning angle of the small animal CT Difficulty and structural complexity, thereby reducing costs.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some of the embodiments described in this application. For those of ordinary skill in the art, without paying any creative labor, other drawings can also be obtained based on these drawings.

FIG. 1 is a front perspective schematic view of a CT using a winding structure according to an embodiment of the present invention;

FIG. 2 is a perspective schematic view of the back of the CT using the winding structure according to FIG. 1;

3 is a schematic plan view of a CT frame and a baffle according to FIG. 1 using a winding structure, wherein the CT turntable is not shown;

4 is a schematic side view of the CT frame and baffle according to FIG. 3 using the winding structure of CT;

FIG. 5 is a schematic front view of the CT using the winding structure according to FIG. 1, wherein the cable drag chain is at an initial position of 0 °;

6 is a schematic view of the back of the CT using the winding structure according to FIG. 1, wherein the cable drag chain is at -90 °;

7 is a schematic diagram of the back of the CT using the winding structure according to FIG. 6, wherein the cable drag chain is at a 90 ° position;

8 is a schematic view of the back of the CT using the winding structure according to FIG. 6, wherein the cable drag chain is at the 180 ° position;

9 is a schematic view of the back of the CT using the winding structure according to FIG. 6, wherein the cable drag chain is at a 270 ° position;

10 is a schematic diagram of the back of the CT according to FIG. 6 using a winding structure, in which the cable drag chain is in the 360 ° position;

FIG. 11 is a schematic back view of the CT using the winding structure according to FIG. 6, wherein the cable drag chain is at a 450 ° position.

detailed description

The present invention will be further described below in conjunction with specific embodiments. It should be understood that the following examples are only used to illustrate the present invention rather than to limit the scope of the present invention.

It should be noted that, when a component / part is said to be “set on” another component / part, it can be directly set on another component / part or there can also be a centered component / part. When a component / part is called "connected / coupled" to another component / part, it may be directly connected / coupled to another component / part or there may be a centered component / part at the same time. The term "connection / coupling" as used herein may include electrical and / or mechanical physical connections / couplings. The term "comprising" as used herein refers to 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. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present application. The terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the present application.

In addition, in the description of this application, the terms "first", "second", etc. are used only for the purpose of describing and distinguishing similar objects. Sex. In addition, in the description of the present application, unless otherwise stated, the meaning of "plurality" is two or more.

FIG. 1 is a perspective schematic view of a CT using a winding structure according to an embodiment of the present invention. FIG. 2 is a perspective schematic view of another angle of the CT using a winding structure according to FIG. 1. As can be seen from FIG. 1 in conjunction with FIG. 2, the present invention The CT provided with a winding structure includes a gantry 1, a CT turntable 2, a CT rotating shaft 3, a cable 5, and a winding structure 6, wherein the gantry 1 is a frame structure; the CT turntable 2 has a circular opening in the middle Disc-shaped; CT rotation axis 3 is cylindrical and CT rotation axis 3 is provided on CT turntable 2. The centers of CT rotation axis 3 and CT turntable 2 coincide and have a common circular opening. The axial direction of CT rotation axis 3 Vertical to the plane where the CT turntable 2 is located, the CT rotation axis 3 is set on the rack 1 through the support, and the CT rotation shaft 3 and the CT turntable 2 can rotate relative to the rack 1 under the action of an external force; the cable 5 rotates with the CT The shaft 3 is located on the same side of the CT turntable 2, one end of the cable 5 is fixed on the frame 1, 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, 62, two

baffles

61, 62 are located between the CT turntable 2 and the frame 1, the two

baffles

61, 62 are symmetrically arranged about the center of the circle of the CT turntable 2 and Not located on the opposite sides of the CT rotation axis 3, the two

baffles

61, 62 form a "V" -shaped structure or an inverted trapezoid structure similar to a groove, that is, the distance between the two

baffles

61, 62 is narrow at one end and the other end The distance between them is wide, and the cable 5 is generally accommodated in the "V" shaped groove or inverted trapezoidal structure.

More specifically, in the specific embodiment of FIGS. 1-2, the frame 1 is a frame structure formed by rods, plates, etc., and several flat table tops may be provided on the frame 1 to support or place other components, such as , The rack 1 is also provided with a first platform 11 and a second platform 12, the first platform 11 and the second platform 12 are connected by a number of rods to form a whole, which belongs to the conventional technical means in the field, This will not be repeated here. It should be understood by those skilled in the art that the shape of the rack 1 can also be changed according to actual needs, which is only an example and not a limitation. A plurality of universal wheels 13 are installed on the second platform 12 of the rack 1 to facilitate moving the position of the rack 1, and a plurality of lifting supports 14 are installed on the second platform 12 of the rack 1 to adjust the rack 1 s position.

Further, in the specific embodiment of FIGS. 1-2, the CT turntable 2 is provided with several reserved holes 21 for installing various components, such as an X-ray generator 22 and a detector 25, where X The ray generator 22 is fixed to the bracket 23, and the bracket 23 is fixed to the reserved hole 21 of the CT turntable 2 by bolts. The detector 25 and the X-ray generator 22 are arranged substantially symmetrically with respect to the center of the CT turntable 2. The detector 25 is used to The X-rays emitted by the X-ray generator 22 are received and converted into electrical signals for output, which will not be repeated here. The CT turntable 2 can rotate clockwise or counterclockwise around the center of the circle under the action of an external force. The external force can be a driving device commonly used in the art, such as a motor, which will not be repeated here.

More specifically, in the specific embodiments of FIGS. 1-2, the CT rotating shaft 3 may integrate a driving device, a power supply device, and a communication device, wherein the driving device is used to drive the CT rotating shaft 3 and the CT turntable 2 to rotate, and the power supply device uses To provide power support for driving equipment, X-ray generator 22, detector 25 and other components, communication equipment is used to provide communication support for X-ray generator 22, detector 25, etc. to facilitate signal transmission, which is the same as commonly used in the art The principle of CT is the same, and will not be repeated here. It is worth noting that a first cable connector (not shown) is provided on the outer side of the CT rotating shaft 3 to facilitate the fixed connection of the cable 5 and the CT rotating shaft 3. The rack 1 is provided with a second cable connector (not shown) to facilitate the fixing of the cable 5 and the rack 1. The cable 5 may include several wires, and two ends of each wire may be provided with corresponding connectors, and several connectors may form a first / second cable connector together. For example, the first cable connector includes several connectors In order to connect the X-ray generator 22 and the detector 25 and the remaining equipment on the CT turntable 2 that requires power supply or signal transmission, the second cable connector contains several connectors to connect the power supply device and the signal receiving / respectively Sending equipment. 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, because the cable 5, the CT rotating shaft 3 and the frame 1 are located on the same side of the CT turntable 2, Moreover, the cable 5 has a certain length, so the cable 5 is substantially wound on the CT rotating shaft 3.

Further, in the specific embodiment of FIGS. 1-2, the winding structure further includes a cable drag chain 4, and the two ends of the cable drag chain 4 are respectively provided with a first drag link 41 and a second drag link 42 The first tow-chain connector 41 and the second tow-chain connector 42 are respectively connected to the first cable connector and the second cable connector to facilitate fixing the cable towline 4. The cable drag chain 4 is combined with the cable 5 to form an integrated body. The specific combination may include the following forms: the cable 5 is fixed in the cable drag chain 4 by a cable tie, and the cable drag chain 4 covers the cable 5. The cable 5 is fixed on the cable towline 4 by other components, or the cable towline 4 and the cable 5 are integrally formed and the like, which is only an example and not a limitation. The cable drag chain 4 is made of a flexible material, and the first drag link 41 and the second drag link 42 at both ends can be made into a plug / socket style 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 rotation number or 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 The chain 4 needs to be wound one and a half times along the outer diameter of the CT rotating shaft 3, considering the appropriate redundant length, the length of the cable 5 and the cable drag chain 4 is about 2.4 to 3 meters, preferably 2.5 meters. If the length of the cable drag chain 4 and the cable 5 is too short, the cable will break, and if it is too long, it will cause unnecessary swing and waste of material. It is worth noting that, since the X-ray generator 22 and the detector 25 and the cable drag chain 4 are respectively disposed 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, The CT turntable 2 is also provided with an opening 24 through which the cable 5 passes through the CT turntable 2 to facilitate connection with the X-ray generator 22 and the detector 25. Since all the cables 5 are placed in the cable towline 4, when extending from the first towing link 41, they need to be twisted by 90 degrees to make the cables 5 pass through the CT turntable 2 smoothly.

In addition, in the embodiments of FIGS. 1-2, the CT using the winding structure further includes a CT origin sensor fixing bracket 8 and a CT origin sensor 81, wherein the CT origin sensor fixing bracket 8 is fixed to the CT rotation along the vertical direction On the support of the shaft 3, the CT origin sensor 81 is arranged at the top of the CT origin sensor fixing bracket 8, the CT origin sensor 81 is also located at the top of the CT turntable 2 in order to detect whether the CT turntable 2 reaches the origin, and the CT turntable 2 reaches the origin The CT origin sensor 81 will generate a trigger signal to facilitate motion control.

Furthermore, FIG. 3 is a schematic plan view of the gantry 1 and the baffle of the CT using the winding structure according to FIG. 1, and FIG. 4 is a side view of the gantry 1 and the baffle of the CT using the winding structure according to FIG. 3. Schematic diagram, as can be seen from FIGS. 3 and 4 in conjunction with FIGS. 1 and 2, 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 , Where 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 with the third baffle 63, and the second baffle 62 is The four baffles 64 are connected, the fifth baffle 65 is connected to the ends of the third baffle 63 and the fourth baffle 64, and the first baffle 61 and the second baffle 62 form a V-shaped groove whose opening width gradually increases. 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 rack 1, and all baffles are located between the CT turntable 2 and the rack 1, thereby forming a flat box shape by means of the rack 1 and the CT turntable 2. space. The second tow link 42 is fixed to the end of the fifth baffle 65 close to the second baffle 62, and the first tow link 41 is located on the side of the CT rotating shaft 3 close to the second baffle 62 in the initial state, thereby The cable drag chain 4 and the cable 5 are wound on the CT turntable 3 in a “Z” -like posture and are accommodated in the box-shaped space. Since the first baffle 61 and the second baffle 62 are formed into a “V” shape structure, the cable towline 4 and the cable 5 are wound on the CT rotating shaft 3, when the CT turntable 2 and the CT rotating shaft 3 rotate, no matter Whether it rotates clockwise or counterclockwise around the rotation axis, both can rotate the cable drag chain 4 through the CT rotation axis 3 and the first drag link 41, when the cable drag chain 4 touches the baffle 61/62 during the swing It rebounds into the V-shaped groove when it moves, and further moves to the narrower width of the groove with the rotation of the CT rotating shaft 3 and the effect of gravity, and automatically folds on the fifth baffle 65, which ultimately avoids the occurrence of cables and Problems such as winding and irregular swing of cable drag chain.

Those skilled in the art should understand that the first baffle 61 and the second baffle 62 may also be arranged asymmetrically, for example, where the first baffle 61 is inclined 10 away from the center of the CT turntable 2 with respect to the vertical direction Degrees, the second baffle 62 is inclined 20 degrees relative to the vertical direction away from the center of the CT turntable 2, at this time, the two baffles 6 are still formed into a "V" shape structure, and the angle between the V shape structure is 30 degrees. Preferably, the first baffle 61 and the second baffle 62 are arranged symmetrically and the angle between the two ranges from 20 ° to 60 °, that is, the angle between the first baffle 61 and the vertical direction is 10 ° to 30 ° The angle between the second baffle 62 and the vertical direction is 10 ° to 30 °. It should also be noted by those skilled in the art that the lengths of the first baffle 61 and the second baffle 62 may be the same or different, as long as a V-shaped groove can be formed, which will not be repeated here. At the same time, the first baffle 61 and the second baffle 62 can also be split into multiples according to actual needs, multiple baffles are connected at different angles, or the first baffle 61 and the second baffle 62 are set as Shapes such as curved panels, such as circular plates.

In addition, in order to save costs, the third baffle 63 and the fourth baffle 64 may not be used, and the first baffle 61 and the second baffle 62 may be connected to the fifth baffle 65 respectively, thereby forming an inverted trapezoid shape. Or only the first baffle 61 and the second baffle 62 are enclosed in a V-shape. At this time, the rectangular groove enclosed by the third baffle 63, the fourth baffle 64, and the fifth baffle 65 disappears accordingly, and the position of the second drag link 42 is also adjusted accordingly.

The working principle of the CT using the winding structure of the present invention will be described below with reference to FIGS. 5-11. Because the CT turntable 2 is fixed on the CT rotating shaft 3, a synchronous belt pulley (not shown) is installed on the CT rotating shaft 3, and the synchronous belt pulley and the synchronous belt pulley on the motor form a transmission, and the CT rotating shaft 3 and The CT turntable 2 rotates, and at the same time, the CT origin sensor 81 monitors the position of the CT turntable 2 and sends the position information to a control device (not shown), and the control device controls the operation of the motor.

As shown in FIG. 5, this position is the initial position or the origin position of the CT using the winding structure, where the first drag link 41 is located near the second baffle 62 on the horizontal plane, the cable drag chain 4 and the cable 5 Winding and extending from the upper part of the CT rotating shaft 3, the second drag link 42 at the other end of the cable drag chain 4 and the first drag link 41 are arranged substantially diagonally. At this time, after the CT equipment is turned on, the CT turntable 2 goes to the original position through the return process.

As shown in FIG. 6, after the CT turntable 2 reaches the origin position, it rotates counterclockwise for two seconds to leave a sufficient acceleration range. At this time, the first drag link 41 moves to the vertical position and is located in the V-shaped groove In the middle of the bottom, the length of the cable drag chain 4 and the cable 5 wound on the CT rotating shaft 3 is further increased, and the cable drag chain 4 with a redundant length in the rectangular groove is pulled up. At this point, the CT equipment completes the preparation process before acceleration. After that, the CT turntable 2 rotates along the pointer and completes the acceleration process before reaching the origin position shown in FIG. 5. When the CT device reaches the origin position shown in FIG. 5 for the second time, the scanning process starts, and the control device controls the X-ray generator 22 and the detector 25 to work and collect information.

As shown in FIG. 7, the CT turntable 2 continues to rotate clockwise by 90 °. At this time, the cable drag chain 4 is at the 90 ° position, and the first drag link 41 moves to the vertical position and is located on top of the CT rotation axis 3 In the middle position, the length of the cable drag chain 4 and the cable 5 wound on the CT rotating shaft 3 is shortened, and the cable drag chain 4 with redundant length in the rectangular groove moves into the rectangular groove under the action of gravity.

As shown in FIG. 8, the CT turntable 2 continues to rotate clockwise by 180 °. At this time, the cable drag chain is at the 90 ° position, and the first drag link 41 moves to a position close to the first baffle 61 on the horizontal plane. The length of the towline 4 and the cable 5 wound on the CT rotating shaft 3 basically disappears. The cable towline 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 amplitudes of the cable drag chain 4 and the cable 5 and exerting a reverse force on them cause the cable drag chain 4 to be stacked into the rectangular groove under the action of gravity and the second baffle 62.

As shown in FIG. 9, the CT turntable 2 continues to rotate 270 ° clockwise. At this time, the cable drag chain 4 is at the 270 ° position, and the first drag link 41 moves to the vertical position and is located at the bottom of the CT rotation axis 3 In the middle position, the cable drag chain 4 and the cable 5 are stacked in a rectangular groove.

As shown in FIG. 10, the CT turntable 2 continues to rotate 360 ° clockwise, the cable drag chain is in the 360 ° position, the cable drag chain 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 collected during the CT scanning process, the CT rotation angle during the scanning process is set to be slightly greater than 360 degrees, and it is generally preferred to rotate 361 degrees clockwise.

As shown in Figure 11, the CT turntable 2 needs to continue to rotate and begin to decelerate after completing the scan. When it reaches 450 °, the CT turntable 2 completes the deceleration and relatively stops, and waits for the arrival of the reset command to start the reverse movement Reset for the next scan, and the movement process of the cable drag chain 4 will not be repeated here.

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 of the CT turntable, a line is required. The length of the cable drag chain 4 and the cable 5 can satisfy the rotation of the CT turntable from -90 ° to 450 °. Because the length of the drag chain is limited, the CT turntable can only rotate within a limited angle. If it exceeds the limit, it will have a pulling effect on the cable drag chain and the cable, damaging its life and even causing a safety accident. In addition, when the CT stops unexpectedly, the limit position is essential for the CT disc to quickly and accurately find the origin position. Therefore, in the embodiment of the present invention, the effective angle range of CT is -90 ° to 450 °, which greatly exceeds the range of one circle.

The above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. The above embodiments of the present invention can also make various changes. That is, any simple, equivalent changes and modifications made in accordance with the claims of the present invention and the contents of the description shall fall within the protection scope of the claims of the present invention patent. What is not described in detail in the present invention is conventional technical content.

Claims

A winding structure, characterized in that the winding structure includes:

A rotating shaft, the rotating shaft is cylindrical;

A driving unit, the driving unit is connected to the rotating shaft;

First baffle

A second baffle plate, the second baffle plate and the first baffle plate are respectively fixed on opposite sides of the rotating shaft, and the second baffle plate and the first baffle plate form a V-shape or an inverted trapezoidal shape A groove in which the rotating shaft is accommodated; and

Cable, two ends of the cable are respectively fixed to the rotating shaft and the bottom of the groove.
The winding structure according to claim 1, wherein 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, The cable drag chain is integrated with the cable.
The winding structure according to claim 2, wherein a drag link is provided at both ends of the cable drag chain, and the cable drag chain is fixed by the drag link.
The winding structure according to claim 1, wherein the angle between the first baffle and the second baffle is between 20 ° and 60 °.
The winding structure according to claim 4, wherein the first baffle and the second baffle are in the shape of a curved plate or a folded plate.
The winding structure according to claim 1, wherein 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; and

A fifth 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 recess groove.
The winding structure according to claim 1, wherein the winding structure further comprises a fifth baffle, the fifth baffle connects the first baffle and the second baffle, the The width of the groove gradually increases from the fifth baffle.
The winding structure according to claim 1, wherein the rotation angle of the rotation shaft ranges from -90 ° to 450 °.
The winding structure according to claim 2, wherein the length of the cable drag chain and the cable match the rotation angle of the rotation shaft.
The winding structure according to claim 1, wherein the winding mechanism further comprises two oppositely arranged panels, and the panel is formed into a box together with the first baffle and the second baffle Space.
A CT using the winding structure according to any one of claims 1-10, wherein the CT further comprises:

CT turntable, the CT turntable is fixed on the rotating shaft;

An X-ray generator, which is provided on the CT turntable; and

A detector, which is arranged on the CT turntable and opposite to the X-ray generator, the detector receives the X-rays emitted by the X-ray generator and converts them into electrical signals, and the cables are respectively The X-ray generator and the detector are electrically and / or communicatively connected.
The CT according to claim 11, wherein the CT further comprises a gantry, the rotating shaft is fixed to the gantry, the rotating shaft and the CT turntable rotate relative to the gantry .
The CT according to claim 12, wherein the first baffle and the second baffle are fixed on the gantry.
The CT according to claim 12, wherein the CT further includes a CT origin sensor, and the CT origin sensor is fixed on the gantry to measure the rotational position of the CT turntable.
The CT according to claim 12, wherein the CT further includes a moving device and / or a position adjusting device provided on the gantry.
The CT according to claim 11, wherein the CT further includes a control device that controls the rotation angle of the rotation shaft and the X-ray generator and the detector.