An examination device for gastrointestinal radiography

Abstract

The present application relates to the technical field of medical apparatus and instruments, in particular to a kind of gastrointestinal radiography auxiliary examination device, including frame body, examination plate and control system for assisting to obtain gastrointestinal radiography, imaging device is fixedly connected to the outer wall of examination plate, control system is used to control the operation of imaging device;Frame body is fixedly connected with the connecting plate that inside and middle are hollow, and the stand plate is fixedly connected to the bottom of connecting plate;Rotating assembly for adjusting the position of examination plate is arranged on connecting plate.Rotating assembly includes outer gear ring rotationally connected to the inner wall of connecting plate, and the gear is engaged with outer gear ring, and examination plate is fixedly connected to the inner wall of outer gear ring;Rotating member is fixedly connected to the bottom of connecting plate, and control system is used to control rotating member to rotate;Rotating member output shaft is coaxially fixedly connected with gear through connecting plate.The success rate of examination of special group is significantly improved, and repeated examination caused by ineffective communication or body position deviation can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a digestive tract contrast imaging auxiliary examination device. Background Technology

[0002] Gastrointestinal contrast radiography is an imaging examination method that uses X-ray imaging technology to comprehensively assess the morphology, function, and lesions of digestive tract organs such as the esophagus, stomach, small intestine, and colon and rectum. This equipment uses digital image processing technology to achieve dynamic observation and flexible image acquisition. Primarily through dynamic fluoroscopy and multi-position radiography, it can display digestive tract lesions, perforations, luminal contours, mucosal folds, wall softness, peristaltic function, emptying capacity, and anatomical relationships between organs. Gastrointestinal contrast radiography typically requires the patient to cooperate in various positional changes on an examination table (such as an X-ray fluoroscopy table); this process usually relies on the physician to verbally instruct the patient to adjust their position.

[0003] However, in actual gastrointestinal contrast imaging examinations, this guidance method has some limitations for patients with hearing impairments, cognitive impairments (such as Alzheimer's disease), intellectual disabilities, language difficulties, or limited limb movement. These patients often struggle to accurately understand or follow instructions, leading to poor posture coordination and frequently requiring repeated exposures or prolonged examination times. This not only increases the patient's radiation exposure risk and discomfort but also reduces examination efficiency.

[0004] Therefore, overcoming the limitations of existing technologies that rely on verbal guidance for position changes and improving adaptability and examination efficiency for special populations has become a pressing technical challenge in the field of gastrointestinal contrast imaging. To this end, there is an urgent need to develop a gastrointestinal contrast imaging auxiliary examination device that improves adaptability and compliance for patients with communication barriers and mobility impairments. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a digestive tract contrast-enhanced imaging auxiliary device. A rotating component drives a gear to rotate, which in turn rotates the entire examination plate via an external gear ring, simultaneously adjusting the position of the imager fixed to the side wall of the examination plate. Patients only need to stand on the plate; no active body movement is required to achieve multi-angle imaging of different parts of the digestive tract. This design significantly improves the success rate of examinations for special populations and effectively reduces duplicate examinations caused by ineffective communication or incorrect body positioning.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A digestive tract contrast imaging auxiliary examination device includes a frame, an examination plate, and a control system for assisting in obtaining digestive tract contrast images. An imager is fixedly connected to the outer wall of the examination plate, and the control system is used to control the operation of the imager. A hollow connecting plate is fixedly connected to the frame, and a station plate is fixedly connected to the bottom of the connecting plate. A rotating component for adjusting the position of the examination plate is provided on the connecting plate.

[0007] The rotating assembly includes an outer gear ring rotatably connected to the inner wall of the connecting plate, the outer gear ring meshing with a gear, and an inspection plate fixedly connected to the inner wall of the outer gear ring; a rotating component is fixedly connected to the bottom of the connecting plate, and the control system is used to control the rotation of the rotating component; the output shaft of the rotating component passes through the connecting plate and is coaxially fixedly connected to the gear.

[0008] The frame is also equipped with a limiting component for limiting the inspection plate, a counterweight component for maintaining the stability of the inspection plate's center of gravity, and an adjustment component for adjusting the fixing force on both sides of the frame. The rotating component is used to drive the adjustment component to operate synchronously, and when the rotating component adjusts the position of the inspection plate, the adjustment component increases the fixing force on the frame opposite to the inspection plate.

[0009] The technical principles of the above solution are as follows:

[0010] Because the external gear ring meshes with the gear, and the gear is coaxially fixedly connected to a rotating component, with the examination plate fixedly connected to the inner wall of the external gear ring, the rotating component can drive the gear to rotate. When the gear rotates, it synchronously drives the external gear ring to rotate. When the external gear ring rotates, it synchronously drives the examination plate to rotate around the axis of the external gear ring, thus adjusting the position of the examination plate. Since the imager is fixedly connected to the outer wall of the examination plate, and the standing plate is fixedly connected to the bottom of the connecting plate, adjusting the position of the examination plate synchronously adjusts the position of the imager. This allows the examination plate and imager to capture images of the digestive tract from different locations without requiring the user to adjust their own position to obtain good body positioning images. During the movement of the examination plate, the design of the limiting component provides a limit to its rotation; the counterweight component keeps the center of gravity of the examination plate stable; and the adjusting component increases the fixing force of the examination plate to the side frame when adjusting the position, further improving the stability of the examination plate's position adjustment.

[0011] The above approach has the following beneficial effects:

[0012] 1. This invention transforms patient positioning into active device movement through a linkage design of rotating components. In traditional gastrointestinal imaging examinations, patients need to change positions multiple times according to the doctor's instructions. Elderly, frail, or hearing-impaired patients often cannot cooperate, leading to positioning errors, blurred images, or even examination failure. This solution uses a rotating component to drive a gear rotation, which in turn uses an external gear ring to rotate the entire examination plate, simultaneously adjusting the position of the imager fixed to the side wall of the examination plate. Patients only need to stand on the plate and do not need to actively move their bodies to achieve multi-angle imaging of different parts of the digestive tract. This design significantly improves the success rate of examinations for special groups and effectively reduces repeated examinations caused by ineffective communication or positioning errors.

[0013] 2. This invention establishes multiple safeguards—anti-over-rotation, stable center of gravity, strong fixation, and high stability—through the synergistic action of limiting components, counterweight components, and adjusting components. The limiting components restrict the rotation range of the examination plate, reducing equipment jamming caused by excessive rotation; the counterweight components, through a center of gravity compensation design, reduce the torque generated by center of gravity shift during examination plate rotation, ensuring overall frame balance; the adjusting components operate synchronously with the rotating components, increasing the fixing force between the examination plate and the ground on one side of the frame, reducing the risk of instability caused by rotating parts during movement. With these multiple safeguards, the stability of the examination plate and imager is effectively improved, enabling doctors to obtain clearer imaging images that better meet clinical needs, and significantly improving the efficiency of lesion observation.

[0014] 3. This invention achieves the combined control benefits of body position adjustment and fixation force compensation through the synchronous linkage of the rotating and adjusting components. When the rotating component starts, the adjusting component responds synchronously, ensuring the equipment remains stable at multiple angles. Simultaneously, the integrated design of the examination plate and imager reduces the need for secondary operations of bed rotation and separate imager adjustment required in traditional equipment, simplifying the operational process for medical staff. This design not only enhances the intelligence of the equipment but also reserves space for functional expansion through a modular structure, improving the portability and safety of contrast imaging examinations.

[0015] Furthermore, the limiting component includes a limiting plate fixedly connected to the top of the frame, and a locking block is fixedly connected to the top of the plate; the bottom of the limiting plate has a slot for the locking block to slide, and a stop block is fixedly connected to the inner wall of the slot.

[0016] Beneficial effects: The sliding engagement of the locking block and the slot provides a physical limit to the rotation of the inspection plate. When the inspection plate rotates with the external gear ring, the locking block slides along the slot to the stop and is blocked, reducing and preventing excessive rotation of the inspection plate and avoiding the risk of equipment jamming or falling due to excessive rotation. At the same time, the guiding function of the slot can constrain the rotation trajectory of the inspection plate, reduce its shaking during movement, ensure the stability of the synchronous movement of the imager and the inspection plate, and further improve the imaging quality and operational safety.

[0017] Furthermore, the counterweight assembly includes a horizontal plate and a counterweight block. An opening is provided in the middle of the limiting plate, and the horizontal plate is slidably connected to the top of the opening. The horizontal plate is vertically and fixedly connected to the inspection plate, and the counterweight block is fixedly connected to the bottom of the horizontal plate on the side opposite to the inspection plate.

[0018] Beneficial effects: The vertical linkage design between the horizontal plate and the inspection plate achieves dynamic center of gravity balance. When the inspection plate rotates, causing a shift in the center of gravity, the horizontal plate slides synchronously with the inspection plate, moving the counterweight in sync. This ensures that the counterweight and the inspection plate maintain the same center of gravity, reducing the risk of the frame tipping over due to unilateral force. Simultaneously, the slidingly connected horizontal plate provides a limit to the inspection plate, ensuring its stability during rotation. This adapts to different rotation angles, ensuring the inspection plate maintains a stable center of gravity during rotation, thus improving the safety of equipment operation and the stability of imaging.

[0019] Furthermore, the adjustment assembly includes a conveying section fixedly connected to the top of the connecting plate, a movable plate slidingly fitted on the inner wall of the conveying section, and conveying pipes connected to the top and bottom of the conveying section; suction cups are symmetrically fixedly connected to the bottom of the frame, each suction cup having a cavity inside, and the end of the conveying pipe away from the conveying section is connected to the cavity; each conveying pipe is connected to a solenoid valve that communicates with the outside, and the control system is used to control the opening and closing of the solenoid valves.

[0020] The connecting plate is equipped with a transmission component for moving the movable plate; when the movable plate moves toward one side of the conveying pipe, the control system opens the solenoid valve on that side of the conveying pipe.

[0021] Beneficial Effects: The linkage design of the transmission and rotation components enables dynamic compensation of the fixing force during the rotation of the inspection plate. When the inspection plate rotates to one side, the transmission component synchronously drives the movable plate to move towards the opposite side of the conveying pipe, extracting the medium from that side's pipe. This, combined with the control system activating the corresponding solenoid valve, changes the pressure within the suction cup cavity on the opposite side, enhancing the suction force between that side's suction cup and the ground. This design uses a dynamic adjustment mode to regulate the fixing force on both sides of the frame, reducing uneven force on one side of the frame caused by the inspection plate's rotation, lowering the risk of equipment tipping over, and improving the stability and ease of operation during the inspection process.

[0022] Furthermore, the transmission assembly includes a lead screw coaxially fixedly connected to the gear, with the top of the lead screw extending into the conveying part and threadedly fitted with a nut seat; the nut seat is fixedly connected to a movable plate, and sliders are symmetrically fixedly connected to the outer wall of the movable plate, with a groove for the sliders to slide on the inner wall of the conveying part.

[0023] Beneficial effects: The coaxial linkage design of the lead screw and gear enables coordinated movement of the rotating and adjusting components. When the gear rotates with the rotating component, the coaxially fixed lead screw rotates synchronously, driving the nut seat to move along the lead screw axis through threaded engagement, thereby driving the movable plate to slide linearly within the conveying section. This design converts the rotational motion of the gear into the linear motion of the movable plate, requiring no additional power source. It features a compact structure and precise transmission, ensuring synchronous response between the movement of the movable plate and the rotation of the inspection plate, dynamically adjusting the suction cup fixing force, and improving the stability and reliability of equipment operation.

[0024] Furthermore, a camera is fixedly connected to the inspection board, and the control system is used to receive image information emitted by the camera and control the operation of the imager based on the image information.

[0025] Beneficial effects: The integrated design of the camera and control system enables intelligent and visual control of the examination process. The camera captures real-time images of the patient's examination site and transmits them to the control system. By analyzing the images, the system dynamically adjusts the imager's operating parameters, ensuring precise alignment of the imager with the target area and improving the quality of the contrast images. Simultaneously, real-time image feedback reduces the need for repeated imaging due to human error, shortening examination time, increasing efficiency, and reducing the risk of radiation exposure for patients, thus balancing the accuracy and safety of medical procedures.

[0026] Furthermore, a telescopic rod is fixedly connected between the connecting plate and the station plate, and the telescopic rod is marked with a scale; the telescopic rod is also equipped with a limiting nut for limiting the telescopic rod's extension and retraction length.

[0027] Beneficial effects: The coordinated design of the telescopic rod, scale, and limiting nut enhances the adaptability and ease of operation of the equipment. The telescopic rod allows for flexible adjustment of the distance between the connecting plate and the station plate, enabling patients to undergo examinations off the ground. It also accommodates the height requirements of patients of different heights or examination scenarios. The scale markings visualize the adjustment process, ensuring accuracy. The limiting nut locks the length of the telescopic rod, reducing accidental slippage caused by external forces during use and ensuring the structural stability of the equipment. This design balances the multiple needs of flexible adjustment and reliable fixation, improving both the versatility of the equipment and operational safety.

[0028] Furthermore, a pressure sensor is fixedly connected to the top wall of the cavity. The control system is used to receive the pressure information emitted by the pressure sensor and control the opening and closing of the corresponding solenoid valve based on the pressure information.

[0029] Beneficial effects: The pressure sensor collects pressure data in the suction cup cavity in real time and transmits it to the control system; when the position adjustment of the inspection plate causes changes in the cavity pressure, the control system responds quickly and controls the opening and closing of the corresponding solenoid valve to ensure that the suction cup and the contact surface maintain a stable and appropriate fixing force; this design not only improves the adaptability of the equipment in different scenarios, but also effectively reduces device slippage or component damage through precise pressure control, thereby enhancing operational safety and reliability.

[0030] Furthermore, the control system includes the following modules:

[0031] The image processing module is used to receive and process image information captured by the camera, extract feature parameters of the required shooting position and shooting clarity of the gastrointestinal contrast area, and transmit the feature parameters to the motion control module.

[0032] The motion control module is used to generate control commands for the rotation speed and direction of the rotating component based on the feature parameters output by the image processing module; and synchronously match the exposure time and focus adjustment action of the imager with the rotation speed and direction of the inspection plate.

[0033] The pressure feedback module is used to collect pressure information inside the cavity in real time and set a safe threshold for the adsorption force inside the cavity; when the pressure information exceeds the safe threshold, an early warning signal is issued.

[0034] Beneficial effects: The integrated design of the control system enables precise and intelligent control of gastrointestinal contrast imaging examinations. The image processing module extracts imaging position and resolution parameters to provide data support for motion control, ensuring that the imager can acquire contrast images of the corresponding area. The motion control module synchronously matches the parameters of the rotating components and the imager, forming a collaborative mechanism linking image acquisition, motion adjustment, and safety assurance. This improves examination efficiency and enhances the safety and reliability of the operation process.

[0035] Furthermore, the image processing module's processing steps are as follows:

[0036] S1. Obtain the patient's body surface feature points through image information recognition, calculate the actual body position angle based on the position of the body surface feature points, and set the target angle.

[0037] S2. Compare the preset target angle to generate an angle deviation; set the deviation threshold of the angle deviation, and start the imager to expose when the angle deviation reaches the deviation threshold.

[0038] S3. Obtain the coordinates of the patient's shoulder and ankle positions through image recognition; calculate the difference between the shoulder and ankle position coordinates; output the scale markings of the extension length of the telescopic rod.

[0039] Beneficial effects: Automated calculation of patient positioning angles is achieved through surface feature point localization, reducing imaging errors caused by traditional manual guidance and providing a reliable data foundation for target angle setting. The deviation threshold-triggered exposure mechanism ensures that the imager only activates when the patient's position meets the examination requirements, reducing invalid images and improving the acquisition rate of effective contrast images. The telescopic rod scale markings output by the shoulder-ankle coordinate difference provide a quantitative basis for equipment height adjustment, ensuring precise adaptation between the examination plate and the patient's position, reducing imaging distortion caused by height deviations, and optimizing the standardization of the examination process and the reliability of results.

[0040] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0041] Figure 1 This is an isometric view of the digestive tract contrast-assisted examination device of the present invention.

[0042] Figure 2 For the present invention Figure 1 Isometric view of the installation of the middle limit component.

[0043] Figure 3 For the present invention Figure 1 Axonometric view of the center counterweight component from below.

[0044] Figure 4 For the present invention Figure 2 Side sectional view of the middle limiting plate.

[0045] Figure 5 For the present invention Figure 1 A cross-sectional view of the adjustment component.

[0046] Figure 6 For the present invention Figure 5 Top sectional view of the central conveyor section.

[0047] Figure 7 For the present invention Figure 1 Cross-sectional view of the suction cup.

[0048] Figure 8 For the present invention Figure 1 Block diagram of the control system.

[0049] The reference numerals in the accompanying drawings of the instruction manual include: 1. Frame; 2. Inspection plate; 3. Imager; 4. Connecting plate; 5. Station plate; 6. External gear ring; 7. Gear; 8. Rotating component; 9. Limiting plate; 10. Locking block; 11. Stop block; 12. Horizontal plate; 13. Counterweight block; 14. Conveying unit; 15. Movable plate; 16. Suction cup; 17. Lead screw; 18. Nut seat; 19. Slider; 20. Camera; 21. Telescopic rod. Detailed Implementation

[0050] The following detailed description illustrates the specific implementation method:

[0051] Example 1:

[0052] As attached Figure 1 The image shows a digestive tract contrast imaging auxiliary examination device, comprising a frame 1, an examination plate 2, and a control system for assisting in acquiring digestive tract contrast images. An imager 3 is bolted to the outer wall of the examination plate 2, and the control system controls the operation of the imager 3. A hollow connecting plate 4 is fixedly welded to the frame 1, and a station plate 5 is bolted to the bottom of the connecting plate 4. The connecting plate 4 is provided with a rotating assembly for adjusting the position of the examination plate 2. In this embodiment, the examination plate 2 is an examination bed, and the imager 3 is an X-ray generator and a flat panel receiver, which are connected to the outer wall of the examination plate 2 via a robotic arm.

[0053] The rotating assembly includes an outer gear ring 6 rotatably connected to the inner wall of the connecting plate 4, the outer gear ring 6 meshing with a gear 7, and the inspection plate 2 bolted to the inner wall of the outer gear ring 6; a rotating component 8 is bolted to the bottom of the connecting plate 4, and in this embodiment, the rotating component 8 is a motor; the control system is used to control the rotating component 8 to rotate; the output shaft of the rotating component 8 passes through the connecting plate 4 and is coaxially keyed to the gear 7.

[0054] The frame 1 is also equipped with a limiting component for providing a limit for the inspection plate 2, a counterweight component for maintaining the stability of the center of gravity of the inspection plate 2, and an adjustment component for adjusting the fixing force on both sides of the frame 1; the rotating component is used to drive the adjustment component to run synchronously, and when the rotating component adjusts the position of the inspection plate 2, the fixing force of the frame 1 on the opposite side of the inspection plate 2 is increased by the adjustment component.

[0055] Combination Figure 2 and Figure 3 As shown, the limiting assembly includes a limiting plate 9 bolted to the top of the frame 1, and a locking block 10 screwed to the top of the inspection plate 2 (e.g., ...). Figure 4 (As shown); the bottom of the limiting plate 9 has a slot for the sliding of the locking block 10, and a stop block 11 is fixedly connected to the inner wall of the slot with screws. In this embodiment, the rotation range of the inspection plate 2 is set to half a turn of the external gear ring 6, which is achieved by setting the forward and reverse rotation mode of the rotating part 8.

[0056] The counterweight assembly includes a horizontal plate 12 and a counterweight block 13. The limiting plate 9 has an opening in the middle, and the horizontal plate 12 is slidably connected to the top of the opening. The horizontal plate 12 is vertically bolted to the inspection plate 2, and the counterweight block 13 is bolted to the bottom of the horizontal plate 12 on the side opposite to the inspection plate 2.

[0057] Specifically, when the inspection plate 2 rotates, the top of the locking block 10 slides in the slot at the bottom of the limiting plate 9 along with its moving direction. The slot provides guidance and constraint for the locking block 10, ensuring that the inspection plate 2 moves along a preset trajectory. When the locking block 10 slides to contact the stop block 11, the mechanical blocking of the stop block 11 restricts the further movement of the locking block 10, thereby limiting the stroke of the inspection plate 2 and keeping the movement of the inspection plate 2 stable.

[0058] When the inspection plate 2 rotates, the horizontal plate 12, which is fixed vertically to the inspection plate 2, moves synchronously with it. The counterweight 13 at the bottom of the horizontal plate 12, being located on the opposite side of the inspection plate 2, generates a reverse torque through its own weight, reducing the tilting tendency caused by the shift of the center of gravity when the inspection plate 2 moves. The inertial mass of the counterweight 13 provides cushioning, making the overall movement more stable and reducing the risk of vibration or tipping of the frame 1 due to uneven force.

[0059] Combination Figure 5As shown, the adjustment assembly includes a conveying section 14 bolted to the top of the connecting plate 4, a movable plate 15 slidingly fitted on the inner wall of the conveying section 14, and conveying pipes connected to both the top and bottom of the conveying section 14; suction cups 16 are symmetrically bolted to the bottom of the frame 1, each suction cup 16 having a cavity inside, and the end of the conveying pipe away from the conveying section 14 is connected to the cavity; each conveying pipe is connected to a solenoid valve that communicates with the outside, and the control system is used to control the opening and closing of the solenoid valves.

[0060] The connecting plate 4 is equipped with a transmission assembly for moving the movable plate 15; when the movable plate 15 moves towards one side of the conveying pipe, the control system opens the solenoid valve on that side of the conveying pipe. The transmission assembly includes a lead screw 17 coaxially keyed to the gear 7, the top of the lead screw 17 extending into the conveying section 14 and threadedly fitted with a nut seat 18; the nut seat 18 is fixedly bonded to the movable plate 15, and sliders 19 (such as...) are symmetrically fixedly bonded to the outer wall of the movable plate 15. Figure 6 As shown), the inner wall of the conveying section 14 has a groove for the slider 19 to slide.

[0061] Specifically, the rotating component 8 (motor) drives the gear 7 to rotate, and the coaxially fixed lead screw 17 rotates synchronously with the gear 7. Since the lead screw 17 is threadedly engaged with the nut seat 18, the rotational motion of the lead screw 17 is converted into the linear lifting motion of the nut seat 18 (the nut seat 18 can move up or down depending on the direction of rotation of the lead screw 17). The movable plate 15, which is fixedly bonded to the nut seat 18, moves synchronously with the nut seat 18, and the slider 19 on its outer wall slides along the groove on the inner wall of the conveying part 14, ensuring that the movable plate 15 only moves linearly along the axial direction of the conveying part 14.

[0062] When the movable plate 15 moves toward a certain side conveying pipe (such as the top conveying pipe) (for example, moving upward), the control system simultaneously opens the solenoid valve on that side conveying pipe to connect the conveying pipe with the outside. At this time, the bottom of the movable plate 15 sucks the inside of the suction cup 16, creating a negative pressure inside, thereby enhancing the suction force of the suction cup 16. The gas squeezed in the upper space is discharged to the outside through the solenoid valve.

[0063] The movement direction of the movable plate 15 and the opening and closing of the solenoid valve are controlled by the control system according to real-time requirements (such as the position adjustment of the inspection plate 2 or a safety threshold) to ensure dynamic matching between the suction force of the suction cup 16 and the movement state of the inspection plate 2. In this embodiment, before adjusting the position of the inspection plate 2, the air pressure inside the cavity of the conveying unit 14 and the suction cup 16 remains constant; when the inspection plate 2 rotates, the conveying unit 14 adjusts the suction force of the suction cups 16 on both sides of the frame 1 in real time; Figure 2 For example, when the inspection plate 2 rotates to the left, the suction force of the suction cup 16 on the right side of the frame 1 is enhanced to increase the fixing force on the right side, so that the center of gravity of the device remains balanced.

[0064] The specific implementation process is as follows:

[0065] Before the contrast imaging is performed, the patient stands on the platform 5. When different angles of contrast imaging are required, the control system starts the rotating component 8 (motor), whose output shaft drives the gear 7 to rotate. The gear 7 meshes with the external gear ring 6, driving the external gear ring 6 to rotate around the inner wall of the connecting plate 4, thereby causing the examination plate 2, which is bolted to the inner wall of the external gear ring 6, to rotate synchronously (the rotation range is half a turn of the external gear ring 6, which can be adjusted by the forward and reverse rotation of the rotating component 8). When the examination plate 2 rotates, the locking block 10 at its top slides along the locking groove at the bottom of the limiting plate 9 (the locking groove provides guiding constraint). When the locking block 10 slides to the end of the locking groove and contacts the stop block 11, the stop block 11 restricts the further movement of the locking block 10 through mechanical blocking, precisely limiting the rotation stroke of the examination plate 2.

[0066] When the inspection plate 2 rotates, the horizontal plate 12, which is fixed perpendicularly to the inspection plate 2, moves synchronously with it (sliding along the opening in the middle of the limiting plate 9); the counterweight 13 at the bottom of the horizontal plate 12 is located on the opposite side of the inspection plate 2, and forms a reverse torque through its own weight, reducing the tilting tendency caused by the shift of the center of gravity when the inspection plate 2 rotates; the inertial mass of the counterweight 13 buffers the impact force when the position of the inspection plate 2 changes, reducing the risk of vibration or tipping of the frame 1 due to uneven force.

[0067] While the rotating component 8 drives the gear 7 to rotate, the lead screw 17, coaxially keyed, rotates synchronously. The lead screw 17 is threadedly engaged with the nut seat 18, converting the rotational motion into the linear lifting motion of the nut seat 18 (the direction is determined by the rotation direction of the lead screw 17). The movable plate 15, fixedly bonded to the nut seat 18, moves synchronously with it, and the outer wall slider 19 slides along the inner wall groove of the conveying section 14, ensuring that the movable plate 15 moves only linearly along the axial direction of the conveying section 14. When the movable plate 15 moves to a certain side of the conveying pipe (such as the top or bottom), the control system synchronously opens the solenoid valve on that side, connecting the conveying pipe to the outside.

[0068] by Figure 2 For example, if the inspection plate 2 rotates to the left, the movable plate 15 moves upward to compress the upper space of the conveying section 14, drawing gas from the cavity of the right suction cup 16 through the bottom conveying pipe to create negative pressure and enhance the suction force on the right side. At the same time, the top conveying pipe discharges the compressed gas due to the opening of the solenoid valve, keeping the air pressure inside the cavity of the left suction cup 16 constant. This achieves a dynamic balance where the suction force of the suction cup 16 on the opposite side of the frame 1 increases when the inspection plate 2 rotates to one side, ensuring the overall stability of the device's center of gravity and reducing the risk of tipping over due to excessive force on one side.

[0069] When the inspection plate 2 rotates to the maximum stroke limited by the stop 11 (or reaches the target angle), the control system controls the rotating component 8 to stop; at this time, all components stop moving synchronously, the suction force of each suction cup 16 remains constant, and the device enters a stable inspection state. If reverse adjustment is required, the rotating component 8 reverses, the above process is executed in reverse, and the inspection plate 2 is reset.

[0070] This embodiment establishes multiple safeguards—anti-over-rotation, stable center of gravity, strong fixation, and high stability—through the synergistic effect of various components. The locking block 10 and the stop block 11 limit the rotation range of the examination plate 2, reducing equipment jamming caused by excessive rotation. The counterweight block 13, through its center of gravity compensation design, reduces the torque generated by the center of gravity shift during the rotation of the examination plate 2, ensuring the overall balance of the frame 1. The piston plate moves synchronously with the rotating component 8, increasing the fixing force of the examination plate 2 against one side of the frame 1 and the ground, reducing the risk of instability caused by the movement of rotating components. With these multiple safeguards, the stability of the examination plate 2 and the imager 3 is effectively improved, allowing doctors to obtain clearer imaging images that better meet clinical needs, significantly improving the efficiency of lesion observation.

[0071] Example 2:

[0072] As attached Figure 1 As shown, the difference from the above embodiment is that a camera 20 is also bolted to the inspection plate 2. The control system is used to receive image information emitted by the camera 20 and control the operation of the imager 3 based on the image information.

[0073] The specific implementation process is as follows: Intelligent and visual control of the examination process is achieved through the linkage design of camera 20 and the control system. Camera 20 collects image information of the patient's examination site in real time and transmits it to the control system. By analyzing the images, the operating parameters of imager 3 are dynamically adjusted to ensure that imager 3 is accurately aligned with the target area, improving the imaging quality of the contrast image. Simultaneously, real-time image feedback reduces repeated shooting caused by human experience-based judgment errors, shortening examination time, improving efficiency, and reducing the risk of radiation exposure to patients, thus balancing the accuracy and safety of medical procedures.

[0074] Example 3:

[0075] As attached Figure 1 As shown, the difference from the above embodiment is that a telescopic rod 21 is bolted between the connecting plate 4 and the station plate 5, and the telescopic rod 21 is marked with a scale; the telescopic rod 21 is also provided with a limiting nut for limiting the telescopic length of the telescopic rod 21.

[0076] The specific implementation process is as follows: The collaborative design of the telescopic rod 21, scale, and limiting nut enhances the adaptability and ease of operation of the equipment; the telescopic rod 21 can flexibly adjust the distance between the connecting plate 4 and the station plate 5, allowing patients to be examined off the ground; it can also adapt to the height requirements of patients of different heights or examination scenarios. The scale markings make the adjustment process visible and ensure adjustment accuracy; the limiting nut locks the length of the telescopic rod 21, reducing accidental slippage caused by external forces during use and ensuring the structural stability of the equipment; this design takes into account multiple needs of flexible adjustment and reliable fixation, improving both the versatility of the equipment and enhancing operational safety.

[0077] Example 4:

[0078] As attached Figure 7 As shown, the difference from the above embodiment is that a pressure sensor is also fixedly bonded to the top wall of the cavity. The control system is used to receive the pressure information emitted by the pressure sensor and control the opening and closing of the corresponding solenoid valve based on the pressure information.

[0079] The specific implementation process is as follows: The pressure sensor collects the pressure data in the cavity of the suction cup 16 in real time and transmits it to the control system; when the position adjustment of the inspection plate 2 causes the cavity pressure to change, the control system responds quickly and controls the opening and closing of the corresponding solenoid valve to ensure that the suction cup 16 and the contact surface maintain a stable and compatible fixing force; this design not only improves the adaptability of the equipment in different scenarios, but also effectively reduces the slippage of the device or damage to components through precise pressure control, thereby enhancing operational safety and reliability.

[0080] Example 5:

[0081] As attached Figure 8 As shown, the difference from the above embodiments is that the control system includes an image processing module for processing image information, a motion control module for controlling the operation of the device, and a pressure feedback module for issuing pressure warning signals.

[0082] The image processing module is used to receive and process the image information acquired by the camera 20, extract the feature parameters of the required shooting position and shooting clarity of the gastrointestinal contrast area, and transmit the feature parameters to the motion control module.

[0083] Specifically, the image processing module's processing steps are as follows:

[0084] S1. Obtain the patient's body surface feature points through image information recognition, calculate the actual body position angle α based on the position of the body surface feature points, and set the target angle β.

[0085] S2. Compare the preset target angle to generate an angle deviation Δθ=|β-α|; set the deviation threshold θ_max of the angle deviation. When the angle deviation reaches the deviation threshold Δθ≥θ_max, it is determined that the patient's position meets the shooting requirements, a stop command is sent to the rotating component 8, and the imager 3 is started for exposure simultaneously.

[0086] S3. Obtain the x-coordinate of the patient's shoulder and y-coordinate of the ankle through image recognition; calculate the difference between the shoulder and ankle coordinates ΔH=xy; output the scale marking of the extension length L=ΔH×C (C is the human body proportion coefficient) of the telescopic rod 21.

[0087] The motion control module generates control commands for the rotational speed and direction of the rotating component 8 based on the feature parameters output by the image processing module; and synchronously matches the exposure time and focus adjustment of the imager 3 with the rotational speed and direction of the inspection plate 2. In this embodiment, a PID control algorithm is used to set the rotational speed v of the rotating component 8 according to the angle deviation Δθ, and dynamically adjust the exposure time t of the imager 3 according to the rotational speed of the inspection plate 2.

[0088] The pressure feedback module is used to collect pressure information (pressure sensor) inside the cavity in real time and set a safe threshold for the adsorption force inside the cavity; when the pressure information exceeds the safe threshold, a warning signal is issued. In this embodiment, the pressure sensor adopts a miniature piezoresistive pressure sensor (range -100kPa to 0kPa, accuracy ±0.1kPa), which collects the pressure value P (negative pressure value, -80kPa is the strong adsorption state, -20kPa is the weak adsorption state) in real time at a frequency of 100Hz; the safe threshold is set according to the maximum load of the frame 1 (e.g., 200kg) and the contact area of ​​the suction cup 16 (e.g., a single suction cup 16 with a diameter of 15cm and an area ≈177cm²), and the safe negative pressure threshold P_min = -60kPa (below this value may cause the suction cup 16 to fall off); at the same time, the overpressure threshold P_max = -90kPa is set (above this value may damage the suction cup 16).

[0089] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A digestive tract contrast-enhanced examination device, comprising a frame (1) and an examination plate (2), wherein an imager (3) is fixedly connected to the outer wall of the examination plate (2), characterized in that, It also includes a control system for assisting in obtaining gastrointestinal contrast imaging, the control system being used to control the operation of the imager (3); a hollow connecting plate (4) is fixedly connected to the frame (1), and a station plate (5) is fixedly connected to the bottom of the connecting plate (4); the connecting plate (4) is provided with a rotating component for adjusting the position of the examination plate (2); The rotating assembly includes an external gear ring (6) rotatably connected to the inner wall of the connecting plate (4), the external gear ring (6) meshing with a gear (7), and an inspection plate (2) fixedly connected to the inner wall of the external gear ring (6); a rotating component (8) is fixedly connected to the bottom of the connecting plate (4), and the control system is used to control the rotating component (8) to rotate; the output shaft of the rotating component (8) passes through the connecting plate (4) and is coaxially fixedly connected to the gear (7); The frame (1) is also provided with a limiting component for providing a limit for the inspection plate (2), a counterweight component for maintaining the stability of the center of gravity of the inspection plate (2), and an adjustment component for adjusting the fixing force on both sides of the frame (1); The rotating component is used to drive the adjusting component to operate synchronously, and when the rotating component adjusts the position of the inspection plate (2), the adjusting component increases the fixing force on the frame (1) opposite to the inspection plate (2); The adjustment assembly includes a conveying part (14) fixedly connected to the top of the connecting plate (4), a movable plate (15) slidingly fitted on the inner side wall of the conveying part (14), and a conveying pipe connected to both the top and bottom of the conveying part (14); suction cups (16) are symmetrically fixedly connected to the bottom of the frame (1), each suction cup (16) has a cavity inside, and the end of the conveying pipe away from the conveying part (14) is connected to the cavity; each conveying pipe is connected to a solenoid valve that communicates with the outside, and the control system is used to control the opening and closing of the solenoid valve; The connecting plate (4) is provided with a transmission component for driving the movable plate (15) to move; when the movable plate (15) moves toward the direction of the conveying pipe on one side, the control system opens the solenoid valve on the conveying pipe on that side. The transmission assembly includes a lead screw (17) coaxially fixedly connected to the gear (7), the top of the lead screw (17) extends to the inside of the conveying part (14) and is threaded with a nut seat (18); the nut seat (18) is fixedly connected to the movable plate (15), and the outer wall of the movable plate (15) is symmetrically fixedly connected with sliders (19), and the inner wall of the conveying part (14) has a groove for the sliders (19) to slide; A pressure sensor is also fixedly connected to the top wall of the cavity. The control system is used to receive the pressure information emitted by the pressure sensor and control the opening and closing of the corresponding solenoid valve based on the pressure information.

2. The gastrointestinal contrast-enhanced examination device according to claim 1, characterized in that, The limiting component includes a limiting plate (9) fixedly connected to the top of the frame (1), and a locking block (10) fixedly connected to the top of the inspection plate (2); the bottom of the limiting plate (9) has a slot for the locking block (10) to slide, and a stop block (11) is fixedly connected to the inner wall of the slot.

3. The digestive tract contrast-enhanced examination device according to claim 1, characterized in that, The counterweight assembly includes a horizontal plate (12) and a counterweight block (13). The limiting plate (9) has an opening in the middle, and the horizontal plate (12) is slidably connected to the top of the opening. The horizontal plate (12) is vertically fixedly connected to the inspection plate (2), and the counterweight block (13) is fixedly connected to the bottom of the horizontal plate (12) on the side opposite to the inspection plate (2).

4. The gastrointestinal contrast-assisted examination device according to claim 1, characterized in that, A camera (20) is also fixedly connected to the inspection plate (2). The control system is used to receive image information emitted by the camera (20) and control the imager (3) to run based on the image information.

5. The gastrointestinal contrast-assisted examination device according to claim 1, characterized in that, A telescopic rod (21) is fixedly connected between the connecting plate (4) and the station plate (5). The telescopic rod (21) is marked with a scale. The telescopic rod (21) is also equipped with a limiting nut for limiting the telescopic rod (21) extension length.

6. The gastrointestinal contrast-assisted examination device according to claim 1, characterized in that, The control system includes the following modules: The image processing module is used to receive and process the image information acquired by the camera (20) and extract the feature parameters of the required shooting position and shooting clarity of the gastrointestinal contrast area; The feature parameters are transmitted to the motion control module; The motion control module is used to generate control commands for the rotation speed and rotation direction of the rotating component (8) based on the feature parameters output by the image processing module; and synchronously match the exposure time and focus adjustment action of the imager (3) with the rotation speed and rotation direction of the inspection plate (2); The pressure feedback module is used to collect pressure information inside the cavity in real time and set a safe threshold for the adsorption force inside the cavity; when the pressure information exceeds the safe threshold, an early warning signal is issued.

7. The gastrointestinal contrast-assisted examination device according to claim 6, characterized in that, The image processing module's processing steps are as follows: S1. Obtain patient's body surface feature points through image information recognition, calculate the actual body position angle based on the position of the body surface feature points, and set the target angle; S2. Compare the preset target angle to generate an angle deviation; set the deviation threshold of the angle deviation, and start the imager (3) to perform exposure when the angle deviation reaches the deviation threshold; S3. Obtain the coordinates of the patient's shoulder and ankle positions through image recognition; calculate the difference between the shoulder and ankle coordinates. The scale markings indicate the extension length of the output telescopic rod (21).

Images