Compact scanning rack of cone-beam CT (Computed Tomography) imaging equipment

Abstract

The invention relates to the technical field of medical imaging equipment, and discloses a compact cone beam CT imaging equipment scanning rack which comprises a scanning rack body, an X-ray source and a flat panel detector, two bases are fixedly connected to one side of the scanning rack body, a storage battery and an inverter are fixedly connected to the tops of the bases respectively, and the storage battery and the inverter are fixedly connected to the other side of the scanning rack body. A control panel is fixedly connected to an inner cavity of the scanning rack, a filter is fixedly connected to the other side of the scanning rack, an alternating current contactor is fixedly connected to one side, on the outer side of the filter, of the scanning rack, four universal wheels are fixedly connected to the bottom of the scanning rack and the bottom of the base correspondingly, and the four universal wheels are fixedly connected to the base. A steering wheel is fixedly connected to the bottom end of the scanning rack, and a steering wheel driving motor controller is fixedly connected to the portion, on the outer side of the control panel, of an inner cavity of the scanning rack. Due to the compact design, equipment installation and movement are facilitated, more operation space can be provided for medical workers in an operating room, and therefore the operation efficiency and the safety performance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical imaging devices, and particularly to a scanning gantry of a compact cone beam CT imaging device. Background Art

[0002] With the development of medical technology, the application of three-dimensional imaging technology in the fields of oral medicine, neurosurgery, etc. has been increasing. In particular, cone beam CT (CBCT) as an important three-dimensional imaging technology has become an important tool for clinical diagnosis due to its low radiation dose and short reconstruction time. In the entire cone beam CT system, the scanning gantry is one of the core components, which undertakes the installation and support of multiple key components and plays a decisive role in the normal operation and performance of the entire device. Specifically, the scanning gantry is mainly used to install important components such as the inner and outer rings of bearings, X-ray sources, flat panel detectors, and electronic components.

[0003] In the operating room environment, due to limited space, it is necessary to accommodate various key surgical instrument devices such as monitors, anesthetic machines, and operating tables at the same time. Therefore, higher requirements are put forward for the compactness and portability of CBCT (cone beam computed tomography) devices. However, traditional CBCT devices have significant deficiencies in design: specifically, in the design of traditional CBCT devices, electronic components and imaging components are arranged together on the rotating structure of the gantry. This complex structure not only increases the overall weight of the device but also reduces the mobility and stability of the device. In a conventional operating room, the surgical team needs to frequently move the device to adjust the best view, and the structure of traditional CBCT devices makes this process time-consuming and laborious.

[0004] In view of this, the present invention proposes a scanning gantry of a compact cone beam CT imaging device to solve the above technical problems. Summary of the Invention

[0005] In view of the deficiencies of the above-mentioned background art, the present invention provides a technical solution for the scanning gantry of a compact cone-beam CT imaging device. Firstly, by optimizing the gantry structure and component layout, the volume of the entire system becomes more compact and lightweight. This improvement significantly enhances the spatial adaptability of the device, especially suitable for environments with limited space such as operating rooms. Compared with the devices with large volume and much occupied space in the prior art, the compact design of the present invention not only facilitates the installation and movement of the device, but also provides more operating space for medical staff in the operating room, thereby improving the surgical efficiency and safety performance. Secondly, electronic components such as inverters and batteries are moved to the bottom base of the scanning gantry instead of the traditional rotating structure. This innovative design significantly reduces the weight of the rotating part. The lightweight rotating part not only reduces the energy consumption of the device, but also improves the flexibility and stability of rotation, reduces mechanical wear and failure rates caused by excessive weight. At the same time, reducing the weight of the rotating part also helps to improve the operating speed and accuracy of the device, further enhancing the quality of scanning imaging.

[0006] The present invention provides the following technical solution: A scanning gantry of a compact cone-beam CT imaging device, comprising a scanning gantry, an X-ray source and a flat panel detector;

[0007] Two bases are fixedly connected to one side of the scanning gantry. A battery and an inverter are respectively fixedly connected to the tops of the bases. A control board is fixedly connected to the inner cavity of the scanning gantry. A filter is fixedly connected to the other side of the scanning gantry. An AC contactor is fixedly connected to one side of the scanning gantry outside the filter;

[0008] Universal wheels are fixedly connected to the bottoms of the scanning gantry and the bases. The number of the universal wheels is four. A steering wheel is fixedly connected to the bottom end of the scanning gantry. A steering wheel drive motor controller is fixedly connected to the inner cavity of the scanning gantry outside the control board.

[0009] As a preferred technical solution of the present invention, the filter is used to filter out the clutter and interference signals in the power grid and protect the subsequent electronic components from the influence of electromagnetic interference. The battery is used to supply power to the steering wheel drive motor controller and provide the ability for the device to move when powered off. The inverter is used to generate high-voltage pulses to supply the X-ray source to generate X-rays for high-speed pulsed exposure. The control board is used to control the entire system and operation process, including flat panel detector synchronization signal, charging control, steering wheel control, beam limiter control, gantry rotation control and flat panel detector bias control, human-computer interaction module, etc.

[0010] As a preferred technical solution of the present invention, an outer bearing ring is fixedly connected to the inner cavity of the scanning frame. An inner bearing ring is rotatably connected to the inner cavity of the outer bearing ring. One end of the inner bearing ring is fixedly connected to a ray source mounting seat. The bottom of the X-ray source is fixedly connected to the top of the ray source mounting seat. A collimator is fixedly connected to the bottom of the ray source mounting seat.

[0011] As a preferred technical solution of the present invention, one end of the inner bearing ring below the ray source mounting seat is fixedly connected to a flat panel detector mounting seat. The flat panel detector is slidably connected to the top end of the flat panel detector mounting seat. A lead screw motor and two slide rails are respectively fixedly connected to the inner cavity and the top end of the flat panel detector mounting seat. The flat panel detector is connected to the lead screw motor and the two slide rails.

[0012] As a preferred technical solution of the present invention, a driving motor is fixedly connected to the inside of the scanning frame. One end of the output shaft of the driving motor is fixedly connected to a synchronous pulley. A synchronous belt is sleeved on the surface of the synchronous pulley and the inner bearing ring together. A belt pressing wheel is fixedly connected to one side of the scanning frame.

[0013] As a preferred technical solution of the present invention, a driver is fixedly connected to the inside of the scanning frame outside the driving motor. There is a cable carrier inside the inner bearing ring.

[0014] As a preferred technical solution of the present invention, the universal wheels are used to provide omnidirectional movement support. The universal wheels are provided with a locking mechanism for fixing the position of the device when needed and ensuring the stability of the device during scanning. The steering wheels are used to precisely control the direction adjustment of the device and provide additional power support.

[0015] As a preferred technical solution of the present invention, a plurality of through holes are formed in one side of the scanning frame. The through holes are used to reduce the overall weight of the scanning frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By optimizing the frame structure and component layout, the volume of the entire system of the present invention is more compact and lightweight. This improvement significantly enhances the space adaptability of the device, especially suitable for environments with limited space such as operating rooms. Compared with the devices in the prior art that are large in volume and occupy a lot of space, the compact design of the present invention not only facilitates the installation and movement of the device, but also provides more operating space for medical staff in the operating room, thereby improving the surgical efficiency and safety performance.

[0018] 2. In the present invention, electronic components such as inverters and storage batteries are moved to the base at the bottom of the scanning rack instead of the traditional rotating structure. This innovative design significantly reduces the weight of the rotating part. The lightweight rotating part not only reduces the energy consumption of the device, but also improves the flexibility and stability of rotation, reduces mechanical wear and failure rates caused by excessive weight. At the same time, reducing the weight of the rotating part also helps to improve the operating speed and accuracy of the device, further enhancing the quality of scanning imaging.

[0019] 3. The design of placing electronic components at the base of the rack in the present invention also reduces the complexity of the system. In the traditional design, electronic components are installed on the rotating structure, which requires complex wiring and protection measures, increasing the complexity and maintenance difficulty of the system. By simplifying the structural design, the present invention reduces the complexity of wiring and protection, making the installation, debugging and maintenance of the device more convenient, and reducing the use and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a rear view of the present invention;

[0022] Figure 3 is a schematic structural diagram of the slide rail of the present invention;

[0023] Figure 4 is a schematic structural diagram of the filter of the present invention;

[0024] Figure 5 is a schematic structural diagram of the lead screw motor of the present invention;

[0025] Figure 6 is a schematic structural diagram of the control board of the present invention;

[0026] Figure 7 is a schematic structural diagram of the pinch roller of the present invention;

[0027] Figure 8 is a schematic structural diagram of the rudder wheel drive motor controller of the present invention.

[0028] In the figure: 1. Scanning rack; 101. X-ray source; 102. Flat panel detector; 2. Base; 201. Storage battery; 202. Inverter; 203. Control board; 204. Filter; 205. AC contactor; 3. Universal wheel; 301. Rudder wheel; 302. Rudder wheel drive motor controller; 4. Outer ring of bearing; 401. Inner ring of bearing; 402. Ray source mounting seat; 403. Collimator; 5. Flat panel detector mounting seat; 501. Lead screw motor; 502. Slide rail; 6. Drive motor; 601. Synchronous pulley; 602. Synchronous belt; 603. Pinch roller; 7. Driver; 701. Cable carrier. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] Please refer to Figure 1-8 As shown, a scanning gantry of a compact cone-beam CT imaging device includes a scanning gantry 1, an X-ray source 101, and a flat panel detector 102. Two bases 2 are fixedly connected to one side of the scanning gantry 1. A storage battery 201 and an inverter 202 are respectively fixedly connected to the tops of the bases 2. A control board 203 is fixedly connected to the inner cavity of the scanning gantry 1. A filter 204 is fixedly connected to the other side of the scanning gantry 1. An AC contactor 205 is fixedly connected to one side of the scanning gantry 1 outside the filter 204. By setting the AC contactor 205, the AC contactor 205 can quickly respond to power changes and is used to switch the main power supply and the storage battery 201 to ensure that the system can obtain stable power supply under any circumstances. Universal wheels 3 are fixedly connected to the bottoms of the scanning gantry 1 and the bases 2. The number of the universal wheels 3 is four. A steering wheel 301 is fixedly connected to the bottom end of the scanning gantry 1. By setting the steering wheel 301, the steering wheel 301 is driven by a steering wheel drive motor controller 302 to control the steering wheel motor. The steering wheel drive motor controller 302 is fixedly connected to the inner cavity of the scanning gantry 1 outside the control board 203. By arranging the inverter 202, the filter 204, the storage battery 201, the AC contactor 205, the control board 203, etc. closely and evenly before and after the base 2, the whole CBCT machine is made more compact and thinner to adapt to the narrow environment of the operating room.

[0032] Embodiment 2

[0033] The filter 204 is used to filter out clutter and interference signals in the power grid and protect subsequent electronic components from electromagnetic interference. The battery 201 is used to power the steering wheel drive motor controller 302 and provide the device with power-off mobility. The inverter 202 is used to generate high-voltage pulses to supply the X-ray source 101 to generate X-rays for high-speed pulse exposure. The control board 203 is used to control the entire system and operation process, including the flat-panel detector 102 synchronization signal, charging control, steering wheel 301 control, beam limiter 403 control, rack rotation control and flat-panel detector 102 bias control, human-computer interaction module, etc. The inner cavity of the scanning rack 1 is fixedly connected to the bearing outer ring 4, and the inner cavity of the bearing outer ring 4 is rotatably connected to the bearing inner ring 401. One end of the bearing inner ring 401 is fixedly connected to a ray source mounting seat 402, the bottom of the X-ray source 101 is fixedly connected to the top of the ray source mounting seat 402, the bottom of the ray source mounting seat 402 is fixedly connected to a beam limiter 403, by setting the beam limiter 403, the beam limiter 403 is mainly used to accurately control the coverage range of the X-ray beam and reduce unnecessary radiation exposure, one end of the bearing inner ring 401 below the ray source mounting seat 402 is fixedly connected to a flat-panel detector mounting seat 5, the flat-panel detector 102 is slidably connected to the top of the flat-panel detector mounting seat 5, the inner cavity and the top of the flat-panel detector mounting seat 5 are respectively fixedly connected to a lead screw motor 501 and two slide rails 502, the flat-panel detector 102 and the lead screw motor 501 and the two slide rails The scanning frame 1 is connected to the slide rail 502, and the lead screw motor 501 and the slide rail 502 are provided. The lead screw motor 501 drives the flat panel detector 102 to perform linear displacement along the slide rail 502 by precisely controlling the rotation of the lead screw, so as to realize the offset of the flat panel detector 102. The interior of the scanning frame 1 is fixedly connected with a driving motor 6. By providing the driving motor 6, the driving motor 6 provides power, which is transmitted to the synchronous belt 602 via the synchronous wheel 601, so as to realize the precise control rotation of the bearing inner ring 401. One end of the output shaft of the driving motor 6 is fixedly connected with the synchronous wheel 601, and the surfaces of the synchronous wheel 601 and the bearing inner ring 401 are jointly covered with the synchronous belt 602. A belt pressing wheel 603 is fixedly connected to one side of the scanning frame 1. By providing the belt pressing wheel 603, the belt pressing wheel 60 3 is used to increase the friction and stability of the synchronous belt 602. The scanning frame 1 outside the driving motor 6 is fixedly connected with a driver 7. The inner cavity of the bearing inner ring 401 is provided with a tank drag chain 701. By setting the tank drag chain 701, the tank drag chain 701 is used to protect and orderly manage the cables and pipelines connected to the X-ray source 101, the flat panel detector 102 and other related electronic equipment. The tank drag chain 701 will flexibly extend or contract with the rotation of the bearing inner ring 401, effectively avoiding the problems of entanglement and wear of the cables and pipelines that may occur during frequent movement. The universal wheel 3 is used to provide all-round mobile support. The universal wheel 3 is provided with a locking mechanism for fixing the equipment position when necessary and ensuring the stability of the equipment during scanning.The steering wheel 301 is used to precisely control the direction adjustment of the device and provide additional power support. A plurality of through holes are provided on one side of the scanning frame 1, and the through holes are used to reduce the overall weight of the scanning frame 1.,

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present invention, the filling pattern is only for distinguishing layers and is not subject to any other limitations.,

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.,

Claims

1. A compact cone-beam CT imaging device scanning gantry, comprising: A scanning gantry (1), an X-ray source (101) and a flat panel detector (102); The invention is characterized in that: one side of the scanning frame (1) is fixedly connected to two bases (2), the tops of the bases (2) are respectively fixedly connected to a battery (201) and an inverter (202), the inner cavity of the scanning frame (1) is fixedly connected to a control board (203), the other side of the scanning frame (1) is fixedly connected to a filter (204), and the side of the scanning frame (1) outside the filter (204) is fixedly connected to an AC contactor (205); The scanning frame (1) and the bottom of the base (2) are both fixedly connected with universal wheels (3), the number of the universal wheels (3) being four, the bottom end of the scanning frame (1) is fixedly connected with a steering wheel (301), and the inner cavity of the scanning frame (1) outside the control panel (203) is fixedly connected with a steering wheel drive motor controller (302).

2. The compact cone-beam CT imaging device scanning gantry according to claim 1, characterized in that: The filter (204) is used to filter clutter and interference signals in the power grid and protect subsequent electronic components from electromagnetic interference. The storage battery (201) is used to supply power to the steering wheel drive motor controller (302) and provide the device with power-off mobility. The inverter (202) is used to generate high-voltage pulses to supply the X-ray source (101) to generate X-rays for high-speed pulse exposure. The control panel (203) is used to control the entire system and operation process, including flat panel detector (102) synchronization signal, charging control, steering wheel (301) control, beam limiter (403) control, rack rotation control and flat panel detector (102) bias control, human-computer interaction module, etc.

3. The compact cone-beam CT imaging device scanning gantry according to claim 1, characterized in that: The inner cavity of the scanning frame (1) is fixedly connected to a bearing outer ring (4), the inner cavity of the bearing outer ring (4) is rotatably connected to a bearing inner ring (401), one end of the bearing inner ring (401) is fixedly connected to a ray source mounting seat (402), the bottom of the X-ray source (101) is fixedly connected to the top of the ray source mounting seat (402), and the bottom of the ray source mounting seat (402) is fixedly connected to a beam limiter (403).

4. The compact cone-beam CT imaging device scanning gantry according to claim 1, characterized in that: One end of the bearing inner ring (401) below the ray source mounting seat (402) is fixedly connected to a flat panel detector mounting seat (5); the flat panel detector (102) is slidably connected to the top of the flat panel detector mounting seat (5); the inner cavity and the top of the flat panel detector mounting seat (5) are respectively fixedly connected to a lead screw motor (501) and two slide rails (502); and the flat panel detector (102) is connected to the lead screw motor (501) and the two slide rails (502).

5. The compact cone-beam CT imaging device scanning gantry according to claim 1, characterized in that: The interior of the scanning frame (1) is fixedly connected to a driving motor (6); one end of the output shaft of the driving motor (6) is fixedly connected to a synchronous wheel (601); the synchronous wheel (601) and the surface of the bearing inner ring (401) are jointly sleeved with a synchronous belt (602); and one side of the scanning frame (1) is fixedly connected to a belt pressure wheel (603).

6. The compact cone-beam CT imaging device scanning gantry according to claim 5, characterized in that: A driver (7) is fixedly connected to the interior of the scanning frame (1) outside the driving motor (6), and a tank drag chain (701) is provided in the inner cavity of the bearing inner ring (401).

7. The compact cone-beam CT imaging device scanning gantry according to claim 1, characterized in that: The universal wheel (3) is used to provide all-round mobile support. The universal wheel (3) is provided with a locking mechanism for fixing the position of the device when necessary and ensuring the stability of the device during scanning. The steering wheel (301) is used to accurately control the direction adjustment of the device and provide additional power support.

8. The compact cone-beam CT imaging device scanning gantry according to claim 1, characterized in that: A plurality of through holes are provided on one side of the scanning frame (1), and the through holes are used to reduce the overall weight of the scanning frame (1).

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