Floor type oral cavity CBCT equipment

Abstract

The utility model relates to the technical field of X-ray imaging, and particularly discloses floor type oral cavity CBCT (cone beam computed tomography) equipment which comprises a floor base and a rotating base rotationally sleeved on the floor base, a supporting mechanism is arranged on the floor base, and a shooting mechanism is arranged on the rotating base; the supporting mechanism comprises a lifting seat arranged at the top of the floor base, and a jaw support assembly and a head support assembly which are distributed on the front side and the rear side of the lifting seat; the shooting mechanism comprises a stand column, a radiation source and a detector, the radiation source and the detector are arranged in the radial direction of the floor base, the radiation source is fixed to the top of the stand column, a connecting piece used for mutual connection is arranged between the radiation source and the detector, and the lifting seat is located between the radiation source and the detector. By adopting the technical scheme provided by the utility model, the technical problems that the radiation source and the detector in the prior art need to be mounted separately, the mounting distance is long, the positioning difficulty of field mounting and later maintenance is increased, and the positioning precision is poor can be solved.

Description

Technical Field

[0001] This utility model relates to the field of X-ray imaging technology, specifically to a floor-standing dental CBCT device. Background Technology

[0002] Cone-beam computed tomography (CBCT) is a three-dimensional imaging technology specifically designed for dental and maxillofacial surgery. Compared to traditional two-dimensional X-rays, CBCT provides more detailed and accurate images of anatomical structures, making it invaluable for the diagnosis and treatment planning of areas such as teeth, jawbones, and temporomandibular joints.

[0003] Most existing dental CBCT devices employ a suspended structure. For example, Chinese utility model patent CN212630786U discloses a multi-mode dental CBCT device, which includes a lifting base fixed to the ground, a jaw support mechanism located on one side of the lifting base, an L-arm mechanism fixed to the top of the lifting base, and a rotating follower mechanism rotatably connected below the L-arm mechanism. Below the rotating follower mechanism, an X-ray tube for emitting X-rays and a detector for receiving signals are positioned opposite each other. The patient stands during the imaging process. The height of the jaw support mechanism and the rotating follower mechanism are adjusted using the lifting base to accommodate different heights. After the patient's chin is positioned by the jaw support mechanism, the rotating follower mechanism drives the X-ray tube and detector to rotate around the patient's head to complete the imaging.

[0004] However, oral CBCT equipment with a suspended structure has a high center of gravity and poor overall rigidity. The entire frame has a vibration amplification effect, which easily causes significant shaking during the rotation of the driven mechanism for imaging, making it impossible to guarantee the stability of the equipment's imaging and thus affecting the image quality. Currently, in order to improve the stability of rotation imaging, the lifting base needs to be designed to be relatively large, which increases the cost of the equipment and makes the overall weight heavier, making it inconvenient for transportation and installation. It is also necessary to use expensive high-rigidity guide rails and sliders, which further increases the cost of the equipment. Alternatively, low-cost guide rails and sliders that require manual adjustment of the gap can be used, but the adjustment is time-consuming and laborious, and inconvenient for on-site installation and subsequent maintenance.

[0005] Based on this, existing technologies disclose dental CBCT devices with a floor-standing structure design. For example, Chinese utility model patent CN219183814U discloses a CT imaging device including a bottom and a base that can rotate relative to each other. A seat is mounted on the bottom, and a source support frame and a detector support frame are mounted opposite each other on the base. A source is mounted on the source support frame, and a detector is mounted opposite the source on the detector support frame. In use, the patient sits on the seat, and the base rotates relative to the bottom, causing the source and detector to rotate around the patient to complete the imaging.

[0006] The existing technology of the aforementioned floor-standing structure rotates the base, eliminating the need for a suspension structure. While this effectively improves stability during rotating shooting, it still presents the following problems:

[0007] 1) If the X-ray source and detector are installed on both sides of the seat via corresponding support frames, the X-ray source and detector need to be packaged, transported and installed separately. Moreover, the installation distance between the X-ray source and detector is farther than that of the traditional suspension structure, which not only increases the cost, but also increases the difficulty of positioning during on-site installation and subsequent maintenance, resulting in poor positioning accuracy of the X-ray source and detector.

[0008] 2) In actual use, the detector needs to be close to the patient. In order to avoid the detector support frame hitting the patient when rotating around the patient, the detector support frame is set away from the seat. However, the upper part of the detector support frame is bent towards the seat, which makes the connection link between the radiation source and the detector very long and complicated. This not only increases the cost, but also increases the installation error of the detector, further increasing the difficulty of on-site installation and subsequent maintenance. Utility Model Content

[0009] The present invention aims to provide a floor-standing dental CBCT device to solve the technical problems of existing technology where the X-ray source and detector need to be installed separately at a long distance, which increases the difficulty of on-site installation and subsequent maintenance, resulting in poor positioning accuracy.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A floor-standing dental CBCT device includes a floor base and a rotating base rotatably fitted onto the floor base. A support mechanism is provided on the floor base, and an imaging mechanism is provided on the rotating base. The support mechanism includes a lifting seat mounted on the top of the floor base, and chin support assemblies and head support assemblies distributed on the front and rear sides of the lifting seat. The imaging mechanism includes a column, an X-ray source and a detector arranged radially along the floor base. The X-ray source is fixed to the top of the column, and a connector for interconnection is provided between the X-ray source and the detector. The lifting seat is located between the X-ray source and the detector.

[0012] It should be noted that the front side of the adjustable seat refers to the side that the patient's face faces when sitting in the adjustable seat; correspondingly, the back side of the adjustable seat refers to the side that the patient's back faces when sitting in the adjustable seat.

[0013] The principles and advantages of this scheme are:

[0014] In practical application, the imaging mechanism is positioned in the patient entry position, with the X-ray source and detector distributed in the front and rear directions of the lifting seat. After stepping onto the base, the patient can sit down from the side of the lifting seat. Once seated, the patient faces the chin support assembly and their back faces the headrest assembly. The height of the lifting seat is adjusted so that the patient's chin rests precisely on the chin support assembly, and the headrest assembly is used to hold the back of the patient's head in place, thus defining the position of the patient's head. The device is then activated, and the rotating base rotates relative to the base, causing the X-ray source and detector to rotate around the patient's head to complete the imaging. After imaging is completed, the rotating base continues to rotate until the imaging mechanism returns to the patient entry position, releasing the chin support assembly and headrest assembly from defining the position of the patient's head. The patient can then get off the lifting seat from the side.

[0015] 1. This solution arranges the X-ray source and detector at both ends of the same part (i.e., connector) to form a fixed assembly. Therefore, the X-ray source and detector do not need to be packaged, transported and installed separately, which can effectively reduce costs. Although the installation distance between the X-ray source and detector is farther than that of the traditional suspension structure, there is no need for separate installation and positioning, which can effectively reduce the positioning difficulty of on-site installation and later maintenance, thereby ensuring the positioning accuracy of the X-ray source and detector.

[0016] 2. This solution fixes the radiation source to the top of the column. During the operation of the equipment, the fixed assembly formed by the connector connecting the radiation source and the detector is relatively stationary with respect to the column. That is, there are no rotating joints or moving cables at the connection between the fixed assembly and the column. This not only makes the structure more stable and reliable, but also allows for the overall installation and disassembly of the fixed assembly, which is beneficial to improving the convenience of on-site installation and subsequent maintenance.

[0017] Although traditional suspended dental CBCT equipment also mounts the X-ray tube and detector on the same part (i.e., the rotary follower mechanism), the rotary follower mechanism is rotatably connected to the L-arm mechanism. This requires the arrangement of the rotary follower mechanism's rotational freedom and motion cables at the connection point, making it impossible to achieve convenient installation and maintenance of the rotary follower mechanism along with the X-ray tube and detector.

[0018] 3. This solution only requires a single support column for the radiation source, and the detector is suspended and connected to the radiation source via a connector. This eliminates the need for the detector support frame structure in existing technologies. Even if the detector needs to be placed close to the patient, the detector support frame can be prevented from hitting the patient during rotation. Furthermore, the simple structure between the detector and the radiation source (only one connector) effectively shortens the connection link between the radiation source and the detector and reduces complexity. This not only reduces costs but also reduces detector installation errors, further simplifying on-site installation and subsequent maintenance.

[0019] 4. This solution fixes the height of the X-ray source, detector, jaw support assembly, and headrest assembly. By adjusting the seat, the patient moves in the height direction, so that the height of the patient's head matches the height of the X-ray source, detector, jaw support assembly, and headrest assembly. Compared to the method where the patient sits still in the seat and the X-ray source, detector, jaw support assembly, and headrest assembly are moved in the height direction to match the height of the patient's head, this solution requires adjusting fewer objects (only one), which can more effectively ensure the accuracy of positioning and improve adjustment efficiency.

[0020] 5. This solution uses a jaw support component and a head support component to limit the position of the patient's head from both the front and back. Compared with the existing technology that only uses a jaw support component to limit the position of the patient's head, this solution can effectively improve the positioning accuracy of the patient's head and can also effectively keep the patient's head fixed during subsequent shooting, thereby ensuring the shooting effect.

[0021] Preferably, as an improvement, the connector is connected to the side of the radiation source and the detector, and the connector is U-shaped, protruding away from the lifting seat.

[0022] Beneficial effects: This design places the connector on the side of the X-ray source and detector, meaning the connection between the X-ray source and detector is a side-semi-circular arrangement. This ensures that the patient's head is unobstructed during imaging, guaranteeing ample head space and preventing claustrophobia that could cause anxiety. Furthermore, designing the connector as a U-shape protruding away from the adjustable seat avoids movement interference between the connector and the chin rest and headrest components, while also further expanding the patient's head space.

[0023] Preferably, as an improvement, the jaw support assembly includes an inverted L-shaped bracket and a jaw support block, with the vertical portion of the inverted L-shaped bracket fixed to a floor base and the jaw support block disposed on the horizontal portion of the inverted L-shaped bracket.

[0024] Beneficial effects: This solution uses an inverted L-shaped bracket to support and fix the chin support block on the floor base. This not only ensures that the height of the chin support block matches the height of the X-ray source and detector, positioning the patient's head between the X-ray source and detector to ensure the effectiveness of the imaging, but also allows the vertical part of the inverted L-shaped bracket to avoid the front of the patient, ensuring ample legroom and improving the patient's comfort during the imaging process.

[0025] Preferably, as an improvement, the top of the jaw support block is provided with a limiting groove, the bottom of the limiting groove is arc-shaped, and the limiting groove extends through the side of the jaw support block near the lifting seat.

[0026] Beneficial effects: This design features a limiting groove running through the top of the chin rest, near the side of the adjustable seat. The patient simply places their chin within this groove to position the chin rest assembly. The structure is simple, reliable, and easy to use. Furthermore, the curved bottom of the limiting groove effectively improves patient comfort.

[0027] Preferably, as an improvement, the chin support assembly further includes an inclined support rod, the support rod being connected to the chin support block near the top of the lifting seat, and the support rod being connected to the horizontal portion of the inverted L-shaped bracket at the bottom away from the lifting seat.

[0028] Beneficial effects: This solution uses an inclined support rod to fix the jaw block to the horizontal part of the inverted L-shaped bracket. This prevents the front of the patient's body from touching the horizontal part of the inverted L-shaped bracket after the patient places their chin in the limiting groove, thus ensuring that the front of the patient's body has ample space and further improving the patient's comfort during the shooting process.

[0029] Preferably, as an improvement, the chin support assembly further includes two angled handles that are connected near the top of the adjustable seat to the horizontal portion of the inverted L-shaped bracket.

[0030] Beneficial effects: This design adds two handles to the horizontal section of the inverted L-shaped support. This allows the patient to hold the handles with both hands to maintain stability after placing their chin in the limiting groove, thus ensuring optimal shooting results. Furthermore, the outward tilt of the handles, compared to vertically positioned handles, provides upward support for the patient's hands, aiding in stability. This not only reduces the burden on the patient to maintain balance and improves comfort during shooting but also guarantees better results.

[0031] Preferably, as an improvement, the headrest assembly includes a fixed column and a headrest plate, the headrest plate being slidably connected to the fixed column along the radial direction of the floor base, so as to allow the headrest plate to move closer to and further away from the adjustable seat.

[0032] Beneficial Effects: This solution involves a headrest that slides radially along the base to a fixed post. After the patient places their chin in the limiting groove, medical staff slide the headrest relative to the fixed post towards the lifting seat, bringing it against the back of the patient's head. This effectively restricts the position of the patient's head. After the procedure, the medical staff slide the headrest away from the lifting seat, releasing it from contact with the back of the patient's head and eliminating the restriction on head position. This solution features a simple, reliable, and easy-to-operate headrest assembly that effectively restricts the patient's head position while improving shooting efficiency.

[0033] Preferably, as an improvement, the bottom of the head support plate is provided with a sliding plate, and the fixing column is provided with a groove in the radial direction of the landing base, and the sliding plate is slidably inserted into the groove.

[0034] Beneficial effects: This solution achieves a sliding connection between the head support plate and the fixed column by using a sliding plate at the bottom of the head support plate and a sliding groove on the fixed column. The structure is simple and reliable.

[0035] Preferably, as an improvement, the headrest is provided with limit plates on both sides, and the side of the limit plate away from the headrest is inclined toward the lifting seat.

[0036] Beneficial effects: This solution features inwardly tilted limiting plates on both sides of the headrest. When the headrest is against the back of the patient's head to limit the position of the patient's head, the limiting plates are located on both sides of the patient's head to further limit the position of the patient's head, so that the patient's head is straight and avoids the patient's head from turning, thereby improving the accuracy of CBCT imaging results.

[0037] Preferably, as an improvement, the floor base is also provided with a foot pedal, which is located on the front side of the lift seat.

[0038] Beneficial effects: This solution features a foot pedal on the ground base at the front of the adjustable seat. If the patient is short, the adjustable seat needs to be raised higher to match the height of the patient's head with the shooting mechanism, jaw support assembly, and head support assembly, resulting in the patient's feet being suspended in the air. In this case, the patient can step on the foot pedal to improve the patient's comfort during the shooting process. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0040] Figure 2 This is a schematic diagram of the jaw support assembly in an embodiment of the present invention.

[0041] Figure 3 This is a schematic diagram of the headrest assembly in an embodiment of the present invention.

[0042] Figure 4 This is a schematic diagram of the structure of the fixing component in an embodiment of this utility model.

[0043] Figure 5 This is a schematic diagram of the overall structure of the device in the patient entry position in an embodiment of this utility model.

[0044] Figure 6 This is a flowchart illustrating the implementation of an embodiment of the present utility model. Detailed Implementation

[0045] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0046] The reference numerals in the accompanying drawings include: 1. Floor base; 2. Rotating base; 3. Support mechanism; 31. Lifting seat; 32. Jaw support assembly; 321. Inverted L-shaped bracket; 322. Jaw support block; 323. Limiting groove; 324. Support rod; 325. Handle; 33. Headrest assembly; 331. Fixing column; 332. Headrest plate; 333. Slide plate; 334. Slide groove; 335. Limiting plate; 4. Imaging mechanism; 41. Column; 42. X-ray source; 43. Detector; 44. Connector; 5. Foot pedal.

[0047] The basic implementation examples are as follows: Figures 1 to 6 As shown:

[0048] A floor-standing dental CBCT device, as shown in the attached image. Figure 1 As shown, it includes a floor base 1, a rotating base 2, a support mechanism 3, and a shooting mechanism 4. The floor base 1 is fixedly connected to the ground, the rotating base 2 is coaxially rotated and sleeved on the floor base 1, the support mechanism 3 is set on the floor base 1, and the shooting mechanism 4 is set on the rotating base 2.

[0049] The support mechanism 3 includes a height-adjustable seat 31, a chin rest assembly 32, and a headrest assembly 33. The height-adjustable seat 31 is fixedly connected to the center or near the center of the top of the floor base 1. The chin rest assembly 32 is located on the front side of the height-adjustable seat 31, and the headrest assembly 33 is located on the rear side of the height-adjustable seat 31. Specifically, the height-adjustable seat 31 can be a pneumatic or electric height-adjustable chair, such as a height-adjustable office chair or gaming chair. This is mature existing technology, and its structure will not be described in detail in this embodiment.

[0050] As attached Figure 2As shown, the chin support assembly 32 includes an inverted L-shaped bracket 321, a chin support block 322, a support rod 324, and a handle 325. The vertical portion of the inverted L-shaped bracket 321 is fixedly connected to the top of the floor base 1, and the vertical portion of the inverted L-shaped bracket 321 is located on the side directly in front of the lifting seat 31. The horizontal portion of the inverted L-shaped bracket 321 is located directly in front of the lifting seat 31. The support rod 324 is inclined, specifically, the bottom end of the support rod 324 is away from the seat, and the top end of the support rod 324 is close to the seat; the bottom end of the support rod 324 is fixedly connected to the horizontal portion of the inverted L-shaped bracket 321, and the chin support block 322 is fixedly connected to the top end of the support rod 324. A limiting groove 323 is formed at the top of the chin support block 322, and the limiting groove 323 penetrates the side wall of the chin support block 322 near the lifting seat 31, and the bottom of the limiting groove 323 is arc-shaped. In this embodiment, there are two handles 325, and the handles 325 are set at an angle. Specifically, the top of the handle 325 is close to the lifting seat 31, the bottom of the handle 325 is away from the lifting seat 31, and the top of the handle 325 is fixedly connected to the horizontal part of the inverted L-shaped bracket 321.

[0051] As attached Figure 3 As shown, the headrest assembly 33 includes a fixing post 331 and a headrest plate 332. The fixing post 331 is vertically fixed to the top of the floor base 1 directly behind the lifting seat 31. The headrest plate 332 is vertically disposed between the fixing post 331 and the lifting seat 31, and the headrest plate 332 is slidably connected to the fixing post 331 along the radial direction of the floor base 1, so as to allow the headrest plate 332 to move closer to and further away from the lifting seat 31. Specifically, a sliding plate 333 is horizontally fixed to the bottom of the headrest plate 332, and a sliding groove 334 is horizontally opened along the radial direction of the floor base 1 on the fixing post 331. The sliding plate 333 is slidably inserted into the sliding groove 334. In this embodiment, the sliding groove 334 passes through the fixing post 331 along the radial direction of the floor base 1, and the length of the sliding plate 333 is greater than the length of the sliding groove 334, that is, both ends of the sliding plate 333 extend out of the sliding groove 334, so as to prevent the sliding plate 333 from falling out of the sliding groove 334 when the headrest plate 332 moves closer to the lifting seat 31. Limiting plates 335 are fixedly connected to both sides of the headrest 332. The side of the limiting plate 335 away from the headrest 332 is tilted towards the lifting seat 31. When the headrest 332 is close to the lifting seat 31, the limiting plate 335 limits the patient's head on both sides, straightens the patient's head, and prevents the patient's head from turning.

[0052] The imaging mechanism 4 includes a column 41, an X-ray source 42, a detector 43, and a connector 44. The column 41 is vertically fixed to the top of the rotating base 2. The X-ray source 42 is fixedly fixed to the top of the column 41. One end of the connector 44 is fixedly connected to the side wall of the X-ray source 42, and the other end of the connector 44 is fixedly connected to the side wall of the detector 43. That is, the connector 44 is located between the X-ray source 42 and the detector 43, fixing them together as shown in the attached figure. Figure 4 A fixed assembly is shown. The radiation source 42 and detector 43 are arranged radially along the floor base 1, and the lifting seat 31 is located between the radiation source 42 and detector 43. The connector 44 is generally U-shaped, specifically, the middle part of the connector 44 protrudes away from the lifting seat 31 to avoid movement interference with the chin support assembly 32 and head support assembly 33, and to ensure that the patient's head space is open.

[0053] A foot pedal 5 is fixedly connected to the top of the floor base 1. The foot pedal 5 is located on the front side of the lifting seat 31 so that patients sitting on the lifting seat 31 can step on it.

[0054] As attached Figure 6 As shown, the specific implementation process is as follows:

[0055] (1) Determine if the device is in the patient entry position: as shown in the attached document. Figure 5 As shown, in the patient entry position, the X-ray source 42 and detector 43 are distributed in the front and rear directions of the lifting seat 31. Specifically, the X-ray source 42 is located directly behind the lifting seat 31, and the detector 43 is located directly in front of the lifting seat 31, with one side of the lifting seat 31 completely empty. The system determines whether the device is in the patient entry position. If the device is in the patient entry position, proceed to the next step; if the device is not in the patient entry position, rotate the rotating base 2 relative to the ground base 1 to reset the device to the patient entry position.

[0056] (2) Pull out the headrest: The medical staff pushes the headrest 332 away from the lifting seat 31, so that the slide plate 333 slides away from the lifting seat 31 relative to the slide groove 334 until the headrest 332 abuts against the fixed column 331. At this time, the headrest 332 is away from the jaw block 322.

[0057] (3) Patient sits down: The patient steps onto the base 1 and sits down on the side of the lifting seat 31 that is completely empty, with the patient facing the jaw support 322 and the back facing the head support 332.

[0058] (4) Patient positioning: Adjust the height of the lifting seat 31 so that the patient's chin is supported in the limiting groove 323 of the chin support block 322 and the patient's head is kept horizontal. Then, the medical staff pulls the head support plate 332 towards the lifting seat 31 so that the slide plate 333 slides relative to the slide groove 334 towards the lifting seat 31 until the head support plate 332 touches the back of the patient's head. At this time, the limiting plate 335 is located on both sides of the patient's head. The patient's head is straightened and the patient positioning is completed. At this time, the patient's head is located between the radiation source 42 and the detector 43.

[0059] If the patient is short, the lifting seat 31 needs to be raised higher so that the height of the patient's head matches the height of the shooting mechanism 4, the chin support assembly 32 and the head support assembly 33, resulting in the patient's feet being suspended in the air. At this time, the patient can step on the foot pedal 5 to improve the patient's comfort during the subsequent shooting process.

[0060] (5) Imaging: The rotating base 2 rotates relative to the ground base 1, causing the X-ray source 42 and detector 43 to rotate around the patient's head to complete the oral CBCT imaging.

[0061] (6) The device is returned to the patient entry position: After the shooting is completed, the rotating base 2 continues to rotate until the device is returned to the patient entry position.

[0062] (7) Pull out the headrest: The medical staff repeats the action of step (2) above to pull out the headrest plate 332 to release the headrest component 33 from restricting the position of the patient's head.

[0063] (8) Patient leaves the seat: The patient leaves the seat from the side of the lifting seat 31 that is completely empty and leaves the base 1.

[0064] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A floor type oral CBCT device, comprising a floor base and a rotating base sleeved on the floor base, a supporting mechanism is arranged on the floor base, and a shooting mechanism is arranged on the rotating base; characterized in that: The support mechanism includes a lifting seat mounted on top of the base, and chin support and head support assemblies distributed on the front and rear sides of the lifting seat; the imaging mechanism includes a column, a radiation source and a detector arranged radially along the base, the radiation source being fixed on top of the column, a connector for interconnection between the radiation source and the detector, and the lifting seat being located between the radiation source and the detector.

2. The floor standing oral CBCT apparatus according to claim 1, characterized in that: The connector is attached to the side of the radiation source and the detector, and the connector is U-shaped and protrudes away from the lifting seat.

3. A floor-standing dental CBCT device according to claim 2, characterized in that: The jaw support assembly includes an inverted L-shaped bracket and a jaw support block. The vertical part of the inverted L-shaped bracket is fixed to the floor base, and the jaw support block is set on the horizontal part of the inverted L-shaped bracket.

4. A floor-standing dental CBCT device according to claim 3, characterized in that: The chin support block has a limiting groove at its top, the bottom of which is arc-shaped and extends through the side of the chin support block closest to the adjustable seat.

5. A floor-standing dental CBCT device according to claim 4, characterized in that: The jaw support assembly also includes an inclined support rod, which is connected to the jaw support block near the top of the lifting seat and to the horizontal part of the inverted L-shaped bracket at the bottom of the support rod away from the lifting seat.

6. A floor-standing dental CBCT device according to claim 5, characterized in that: The chin support assembly also includes two angled handles that are connected to the horizontal portion of the inverted L-shaped bracket near the top of the adjustable seat.

7. A floor-standing dental CBCT device according to claim 2, characterized in that: The headrest assembly includes a fixed column and a headrest plate, with the headrest plate slidably connected to the fixed column along the radial direction of the floor base to allow the headrest plate to move closer to and further away from the seat.

8. A floor-standing dental CBCT device according to claim 7, characterized in that: The bottom of the head support plate is horizontally provided with a sliding plate, and the fixing column is horizontally provided with a sliding groove along the radial direction of the landing base, and the sliding plate is slidably inserted into the sliding groove.

9. A floor-standing dental CBCT device according to claim 8, characterized in that: Limiting plates are provided on both sides of the headrest, with the side of the limiting plate away from the headrest tilted towards the lifting seat.

10. A floor-standing dental CBCT device according to any one of claims 1-9, characterized in that: The base is also equipped with a foot pedal, which is located in front of the adjustable seat.

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