Medical image processing auxiliary device and method

Abstract

The invention relates to the technical field of medical images, in particular to a medical image processing auxiliary device and method, and the method comprises the steps: S1, height adjustment: adjusting the height of an examination plate according to the height of a patient; s2, fixing elbows: placing the elbows of the patient in a fixing box and fixing the elbows; s3, adjusting the body position: controlling a first electric control cylinder to drive a fixing box to move towards one side close to the examination plate by a control module, identifying the distance between a connecting block and the examination plate through a laser ranging unit, and further controlling the moving distance of the fixing box; s4, illumination imaging: after the thoracic cavity is attached to the examination plate, illumination imaging is carried out; and S5, image processing: converting the information acquired by the image acquisition module into a clear image, displaying the image on a man-machine interaction screen in real time, and transmitting the image to a data storage and communication module for storage and synchronization after the preview image is confirmed to be correct. The elbow of the patient is attached to the examination plate, so that the thoracic cavity of the patient is attached to the examination plate, and image artifacts are avoided.

Description

Technical Field

[0001] The present invention relates to the field of medical imaging technology, and in particular to a medical image processing auxiliary device and method. Background Art

[0002] Medical imaging uses various technologies to generate images of the human body's internal structure and function for diagnosis, treatment guidance, and efficacy evaluation. It is an indispensable tool in modern medicine, enabling doctors to "see" the inside of the body and avoid unintended surgery or treatment.

[0003] Since traditional supine chest X-ray machines require position adjustment between supine and lateral positions, it is difficult for patients to determine whether the position adjustment is correct. In addition, patients with dyspnea, pancreatitis and thoracic vertebrae fractures may be unable to stretch their trunks due to dyspnea and pain when lying supine, causing motion artifacts in the image and affecting treatment diagnosis. To address this problem, the existing Shanghai Baiteng Medical vertical chest X-ray machine includes a support column with a mechanical arm slidingly engaged on the support column. The two ends of the mechanical arm are respectively fixedly connected to an inspection board and an X-ray machine. The height of the X-ray machine and the inspection board are adjusted by the mechanical arm to suit the patient's height. When the patient brings the chest close to the inspection board, the patient moves the shoulders and elbows close to the inspection board to make the patient's chest fit the inspection board. After fitting, the X-ray machine is used to start scanning and imaging.

[0004] In actual implementation, although the patient's position is determined by placing the chest close to the examination board and then scanning with an X-ray machine, when the patient's chest is close to the examination board, the patient's elbow may not be able to move close to the examination board on its own due to the flexibility of the patient's body, so that the patient's chest and the examination board cannot fit together, resulting in image artifacts.

[0005] Therefore, the present invention proposes a medical image processing auxiliary device and method to solve the above problems. Summary of the Invention

[0006] To solve the above problems, the present invention provides a medical image processing auxiliary device and method, which brings the patient's elbow close to the examination board, so that the patient's chest fits the examination board, avoiding image artifacts.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a medical image processing auxiliary device, comprising a human-computer interaction screen, a support column and a U-shaped fixed frame, the support column is provided with a sliding assembly for controlling the vertical sliding of the U-shaped fixed frame, the two ends of the U-shaped fixed frame are respectively fixedly connected to an X-ray machine and an inspection board, the X-ray machine signal is connected to a control system, a first electric control cylinder is fixedly connected to the bottom of the U-shaped fixed frame near the inspection board, the first electric control cylinder is connected to the control system signal, the output shaft of the first electric control cylinder is fixedly connected to a connecting block, and a U-shaped connecting rod is fixedly connected to the side wall of the connecting block away from the first electric control cylinder. Both ends of the U-shaped connecting rod are fixedly connected to a fixing box, and the two fixing boxes are respectively located on both sides of the inspection plate. A first airbag is provided on the inner wall of the fixing box, and the first airbag is connected to an air pump, and the air pump is connected to the control system signal. A second airbag is fixedly connected to the top of the inspection plate, and a filling component for inflating the second airbag is provided on the second airbag; before the patient is examined, the elbow is placed in the fixing box, and the control system controls the air pump to inflate the first airbag to fix the patient's elbow, and then controls the first electric cylinder to move the connecting block toward the side close to the inspection plate, and the connecting block drives the U-shaped connecting rod and the fixing box to move toward the side close to the inspection plate.

[0008] The technical principle of the above scheme is as follows: adjust the height of the U-shaped fixing frame through the sliding component so that the inspection board and the patient's chest cavity are on the same horizontal plane, place the patient's elbows in the corresponding fixing boxes respectively, and control the air pump through the control system to inflate the first airbag to fix the elbow. After the fixation is completed, control the output shaft of the first electric control cylinder to contract to pull the connecting block, so that the connecting block drives the U-shaped connecting rod to move away from the inspection board, and then drives the fixing box to move closer to the inspection board. At the same time, the first electric control cylinder pulls the connecting block to start the filling component to inflate the second airbag.

[0009] The above scheme has the following beneficial effects: compared with the existing technology, this scheme simulates the action of medical staff assisting in pressing the patient's elbow by fixing the patient's elbow on both sides of the inspection board and pulling it toward the side close to the inspection board. When the patient fits both elbows and shoulders to the inspection board, the patient's chest cavity fits to the inspection board; at the same time, the first electric cylinder pulls the connecting block to trigger the gas change of the filling assembly, causing the gas to flow into the second airbag for filling, and the patient's lower jaw is supported by the second airbag to assist in fitting the patient's chest cavity to the inspection board.

[0010] Furthermore, the sliding assembly includes a slide groove, which is opened in the support column, and a slide rod is slidably fitted in the slide groove. A second electric control cylinder is fixedly connected to the top wall of the slide groove, and the second electric control cylinder is connected to the control system signal. The slide rod is fixedly connected to the output shaft of the second electric control cylinder, and the slide rod extends outside the slide groove, and the end of the slide rod away from the slide groove is fixedly connected to the U-shaped fixing frame.

[0011] Beneficial effect: The second electric control cylinder controls the slide rod to slide in the slide groove, thereby driving the U-shaped fixing frame to slide up and down to facilitate height adjustment.

[0012] Furthermore, the filling assembly includes a channel, which is connected to the second airbag. The other end of the channel is connected to a push-pull cavity, which is fixedly connected to the side wall of the first electric control cylinder, and the connecting block is connected to the side wall of the push-pull cavity away from the first electric control cylinder.

[0013] Beneficial effect: The push-pull cavity and the second airbag are connected through a channel, and the push-pull cavity cooperates with the output shaft of the second electric control cylinder and the connecting block, so that when the connecting block moves toward the side close to the first electric control cylinder, the gas in the push-pull cavity is squeezed, and the gas enters the second airbag through the channel for filling, so as to pull the patient's elbow while lifting the patient's lower jaw, thereby improving the fit between the patient's chest cavity and the inspection board.

[0014] Furthermore, the control system includes:

[0015] A pressure monitoring module is used to detect the pressure on the patient's elbow to determine the fixation status. The pressure monitoring module is signal-connected to the pressure sensor.

[0016] An identification module is used to identify the placement of the affected limb and the movement distance of the fixation box;

[0017] The image acquisition module is located on the side of the inspection board close to the X-ray machine and is used to receive the X-rays that are attenuated after passing through the human body and convert the attenuated X-rays into electrical signals for imaging;

[0018] Image processing module, used to process the electrical signal converted from X-rays, convert the electrical signal into a digital signal image, and display it in real time on the human-computer interaction screen for easy judgment;

[0019] The data storage and communication module is used to save and transmit qualified images processed by the image processing module to facilitate data search and connection to the hospital information system;

[0020] The control module is used to receive the pressure signal detected by the pressure monitoring module, as well as the fixation signal of the affected limb and the movement distance signal after fixation identified by the identification module, process the pressure signal, fixation signal and distance signal to determine the fit between the patient's chest and the examination board, and generate corresponding control output according to the processing results.

[0021] Furthermore, the identification module includes a laser ranging unit and an infrared photoelectric unit, the laser ranging unit is arranged on the side wall of the connecting block, and the infrared photoelectric unit is arranged on the inner side of the fixing box;

[0022] The laser distance measuring unit is used to measure the distance between the connecting block and the inspection plate;

[0023] The infrared photoelectric unit is used to detect whether the patient's elbow is completely placed in the fixation box.

[0024] Beneficial effect: The placement of the elbow in the fixing box is identified by the infrared photoelectric unit, and the movement distance of the connecting block is identified by the laser ranging unit, thereby determining the movement distance of the fixing box.

[0025] Furthermore, the image processing module includes an image correction unit, an image adjustment unit, an image determination unit and an image processing unit;

[0026] Image correction unit, used to eliminate detector noise, calibrate pixel response and correct geometric distortion;

[0027] Image adjustment unit, used to optimize image quality, suppress noise, adjust dynamic range and enhance edge details;

[0028] Image judgment unit, used to analyze image quality in real time and evaluate projection range, exposure dose and motion artifacts;

[0029] The image processing unit is used to generate a warning or output an optimized image based on the determination result and transmit it to the storage module.

[0030] Beneficial effect: The information collected by the image acquisition module is converted into a clear digital image through the image processing module and sent to the human-computer interaction screen for preview to check whether the imaging is standard.

[0031] Furthermore, the data storage and communication module includes a cache unit, a storage management unit and a database unit;

[0032] A buffer unit receives DICOM format image data from the image processing module;

[0033] The storage management unit classifies and migrates data according to preset policies;

[0034] The database unit maps DICOM tags to storage paths and records device status logs and operation audits.

[0035] Beneficial effects: The output images are archived through the data storage and communication module and transmitted to the hospital system so that doctors can see the results at the first time and quickly judge the patient's condition.

[0036] Furthermore, a medical image processing auxiliary method includes the following steps:

[0037] S1: Height adjustment: adjust the height of the examination board according to the patient's height through the control module;

[0038] S2: Fixing the elbow: The patient places the elbow in the fixation box. The infrared photoelectric unit identifies the placement of the patient's elbow. The control module then controls the air pump to inflate the first airbag to fix the elbow based on the signal feedback from the infrared photoelectric unit. The pressure monitoring module determines the fixation status.

[0039] S3: Adjusting body position: The elbow is fixed in the fixing box. The control module controls the first electric control cylinder to move the fixing box toward the inspection plate. The laser distance measuring unit identifies the distance between the connecting block and the inspection plate, thereby controlling the moving distance of the fixing box.

[0040] S4: Illumination and imaging: After the chest cavity is attached to the inspection board, the control module controls the X-ray machine to emit X-rays, and the image acquisition module receives the X-rays that have penetrated the human body and converts them into electrical signals;

[0041] S5: Image processing: The electrical signal converted by the image acquisition module is converted into a clear image through the image processing and preview module and the image is displayed in real time on the human-computer interaction screen. After the preview image is confirmed to be correct, the image is transmitted to the data storage and communication module for storage and synchronization.

[0042] Furthermore, the laser ranging unit in S2 includes a laser transmitter and a laser receiver. The distance is calculated by measuring the time it takes for the laser signal to be emitted, reflected by the target, and returned to the receiver using the constant speed of light.

[0043] Furthermore, the infrared photoelectric unit in S2 includes a plurality of infrared sensors. When more than a set number of infrared sensors are triggered, it is determined that the elbow has been fully inserted.

[0044] Beneficial effects: The automated fixation and position adjustment mechanism significantly improves the efficiency and standardization of examinations. After the patient's elbow is fixed by the airbag, it is precisely pulled and moved by the first electric cylinder, avoiding the uneven force problem of traditional manual assistance, reducing the operator's labor intensity and ensuring standardization of the position. At the same time, the second airbag is inflated synchronously with the traction action of the first electric cylinder, providing adaptive support for the mandible, making the chest fit more closely, which is especially suitable for patients who are weak, in pain or have difficulty breathing, reducing their burden of active cooperation. The control system integrates pressure monitoring and photoelectric recognition modules to provide real-time feedback on fixation status and displacement data, doubly ensuring operational safety and preventing excessive traction or fixation failure. The image processing and communication module realizes the integrated process of "shooting-preview-archiving". Doctors can immediately judge the image quality and synchronize it to the hospital system, greatly shortening the waiting time for diagnosis. The overall design uses mechanical collaboration and intelligent control to eliminate artifacts while taking into account patient comfort and optimal utilization of medical resources.

[0045] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Schematic diagram of the medical image processing auxiliary method of the present invention;

[0047] Figure 2 Schematic diagram of the system operation of the medical image processing auxiliary device of the present invention;

[0048] Figure 3 It is an overall axonometric diagram of an embodiment of the medical image processing auxiliary device of the present invention;

[0049] Figure 4 A front cross-sectional view of a support column of an embodiment of a medical image processing auxiliary device of the present invention;

[0050] Figure 5 A horizontal cross-sectional view of a U-shaped connecting rod of an embodiment of the medical image processing auxiliary device of the present invention;

[0051] Figure 6 This is a side sectional view of an inspection plate according to an embodiment of the medical image processing auxiliary device of the present invention.

[0052] The figure marks in the drawings of the specification include: 1. support column; 2. U-shaped fixing frame; 3. X-ray machine; 4. Inspection plate; 5. First electric cylinder; 6. Connecting block; 7. U-shaped connecting rod; 8. Fixing box; 9. First airbag; 10. Air pump; 11. Second airbag; 12. Slide groove; 13. Slide rod; 14. Second electric cylinder; 15. Channel; 16. Push-pull cavity. DETAILED DESCRIPTION

[0053] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] The following is further described in detail through specific implementation methods:

[0057] Example 1:

[0058] As attached Figure 3 As shown: A medical image processing auxiliary device includes a human-computer interaction screen, a support column 1 and a U-shaped fixing frame 2. The U-shaped fixing frame 2 is arranged on the support column 1. The human-computer interaction screen is fixedly connected to the support column 1. The model of the human-computer interaction screen is preferably Siemens SIMATIC HMI KTP700 Basic. An X-ray machine 3 and an inspection board 4 are welded to both ends of the U-shaped fixing frame 2. The signal of the X-ray machine 3 is connected to the control system. Due to the different heights of patients, a sliding component of the adjustable U-shaped fixing frame is provided on the support column 1 to facilitate the adjustment of the height of the inspection board 4 and the X-ray machine 3 so that they are at the same level as the patient's chest cavity. Figure 4 As shown, the sliding assembly includes a slide groove 12 opened in the support column 1, a slide rod 13 is slidably fitted in the slide groove 12, a second electric control cylinder 14 is welded to the top wall of the slide groove 12, and the model of the second electric control cylinder 14 is preferably Aerotech LMS15. The second electric control cylinder 14 is connected to the control system signal, and the slide rod 13 is welded to the output shaft of the second electric control cylinder 14. The slide rod 13 extends outside the slide groove 12, and the end of the slide rod 13 away from the slide groove 12 is welded to the U-shaped fixing frame;

[0059] After adjusting the inspection board 4 to the height of the patient's chest, the patient's chest is in contact with the surface of the inspection board 4. However, the patient's chest is usually a convex arc surface and the patient's body is not flexible enough, which makes it difficult for the chest to completely fit with the inspection board 4. This can easily produce artifacts when taking chest X-rays, affecting treatment decisions. Therefore, as shown in the attached figure, Figure 3 and attached Figure 5As shown, a first electric cylinder 5 is welded to the bottom of the U-shaped fixing frame near the inspection plate 4. The model of the first electric cylinder 5 is preferably IAI RCP4. The first electric cylinder 5 is connected to the control system signal. A connecting block 6 is welded to the output shaft of the first electric cylinder 5. A U-shaped connecting rod 7 is welded to the side wall of the connecting block 6 away from the first electric cylinder 5. A fixing box 8 is welded to both ends of the U-shaped connecting rod 7. The two fixing boxes 8 are respectively located on both sides of the inspection plate 4. The inner walls of the fixing boxes 8 are each provided with a first airbag 9. An air pump 10 is welded to the U-shaped fixing frame 2. The air pump 10 is connected to the first airbag 9. The model of the air pump 10 is preferably KNF NMP. 830, each of the first airbags 9 is provided with a pressure sensor, and the pressure sensor and the air pump 10 are both connected to the control system signal. The pressure monitoring module is used to detect the pressure on the patient's elbow to determine the fixation status; and a second airbag 11 is welded to the top of the inspection plate 4, and a filling assembly for inflating the second airbag 11 is provided on the second airbag 11, and the filling assembly includes a channel 15, which is connected to the second airbag 11, and the other end of the channel 15 is connected to a push-pull cavity 16, which is welded to the side wall of the first electric control cylinder 5, and the output shaft of the first electric control cylinder 5 is located in the push-pull cavity 16, and the connecting block 6 is welded to the output shaft of the first electric control cylinder 5, and the connecting block 6 is connected to the side wall of the push-pull cavity 16 away from the first electric control cylinder 5;

[0060] To achieve automatic fixation of elbow and adjustment of patient position, and to facilitate doctors to obtain examination results, as shown in the attached Figure 1 As shown, the control system also includes an identification module, an image acquisition module, an image processing and preview module, and a data storage and communication module; the identification module includes a laser ranging unit and an infrared photoelectric unit, the laser ranging unit is arranged on the side wall of the connecting block 6, and the infrared photoelectric unit is arranged on the inner side of the fixing box 8, the laser ranging unit is used to measure the distance between the connecting block 6 and the inspection plate 4, and the infrared photoelectric unit is used to detect whether the patient's elbow is completely placed in the fixing box 8; the image acquisition module is arranged on the side of the inspection plate 4 close to the X-ray machine 3, and the image acquisition module is used to receive the X-rays attenuated after penetrating the human body and convert the attenuated X-rays into electrical signals; the image processing and preview module is used to process the electrical signals converted from the X-rays, convert the electrical signals into digital signal images, and display them in real time on the human-computer interaction screen for easy judgment; the data storage and communication module is used to save and transmit images to realize data search and docking with the hospital information system.

[0061] The specific implementation process is as follows: First, a height adjustment command is sent to the control module through the human-computer interaction screen based on the patient's height. The control module activates the second electric cylinder 14 to drive the slide rod 13 up and down in the slide groove 12 of the support column 1, driving the U-shaped fixing frame welded to the end of the slide rod 13 to move as a whole until the X-ray machine 3 and the examination board 4 are adjusted to the level of the patient's chest. The patient then stands facing the examination board 4 and presses his chest against the board surface.

[0062] The doctor then provides posture guidance to the patient, instructing the patient to place his elbows in the fixing boxes 8 on both sides respectively. At this time, the doctor controls the module to adjust the posture. First, after detecting that the elbow is fully entered through the infrared photoelectric unit inside the fixing box 8, the control module starts the air pump 10 to inflate the first airbag 9. The pressure monitoring module feeds back the elbow pressure data to the control module in real time. When the pressure reaches the preset safety threshold, the inflation is stopped to achieve flexible fixation. After the patient's elbow is fixed, the control module controls the first electric control cylinder 5 welded on the bottom of the U-shaped fixing frame to pull the connecting block 6, so that the U-shaped connecting rod 7 welded on the connecting block 6 drives the fixing boxes 8 on both sides to move toward the inspection plate 4, and the elbows placed in the fixing boxes 8 move synchronously toward the inspection plate 4. The first electrically-controlled cylinder 5 pulls the connecting block 6 to move toward the side close to the first electrically-controlled cylinder 5, and the connecting block 6 squeezes the air in the push-pull cavity 16, so that the gas in the cavity is pressed into the second airbag 11 through the channel 15 to expand it. The expansion of the second airbag 11 will lift the patient's lower jaw upward, and when the patient's lower jaw is lifted, it will automatically push the chest forward, so that the patient's chest is more closely fitted to the inspection board 4. At the same time, the laser ranging unit continuously measures the distance change data between the connecting block 6 and the inspection board 4, and the control module controls the stroke of the first electrically-controlled cylinder 5 according to this data, so as to ensure that the patient's chest is closely fitted to the inspection board 4 while ensuring that the patient's elbow is not twisted, so that the expansion degree of the second airbag 11 matches the patient's body shape.

[0063] After the body position is fixed, the control module controls the X-ray machine 3 to emit X-rays to penetrate the human body. The image acquisition module located on the back of the inspection board 4 receives the attenuated X-rays and converts them into electrical signals. The image processing and preview module converts the signals into digital images and displays them in real time on the human-computer interaction screen for the doctor's diagnosis. The data storage and communication module synchronously archives the images and transmits them to the hospital information system.

[0064] The patient's elbows on both sides are fixed by the fixing box 8 and displaced toward the side close to the inspection board 4, so that the auxiliary patient's chest is fitted with the inspection board 4; and when the elbows are moved, the movement of the first electric cylinder 5 is linked to the second airbag 11 to inflate and lift the patient's chin, thereby making the patient's chest stand up and fit the inspection board 4, increasing the fit between the patient's chest and the inspection board 4. At the same time, the fixing box 8 reduces the difficulty of the doctor conveying posture adjustment instructions to the patient. The doctor only needs to tell the patient to place the chin in the first airbag 9 and the elbow in the corresponding fixing box 8 respectively. After the patient assumes the posture, the posture is automatically adjusted through the control system, which not only reduces the difficulty of the doctor's guidance, but also reduces the difficulty of the patient's execution, thereby improving the efficiency of diagnosis.

[0065] The medical image processing auxiliary device according to Example 1 was compared with a traditional vertical chest X-ray machine. The specific experiment is as follows:

[0066] Experimental objectives: Quantify the artifact reduction effect: compare the artifact incidence rate in chest X-ray imaging between the traditional vertical chest radiograph and the new device; evaluate the body fit efficiency: measure the fit time and fit accuracy between the patient's chest and the examination board under the two devices; test the operation process optimization: analyze the effect of the new device's automated functions (such as elbow fixation and chin support) on simplifying the operation steps.

[0067] Experimental steps:

[0068] 1. Experimental Grouping

[0069] Experimental group: this device, 20 cases;

[0070] Control group: conventional vertical X-ray machine (Shanghai Baiteng Medical), 20 cases;

[0071] Patient population characteristics of the control group and experimental group: 18-25 years old, including 5 patients with simulated dyspnea.

[0072] 2. Operation process

[0073] Experimental group: The control system automatically adjusts the height of the inspection board; the infrared photoelectric unit identifies the elbow → the airbag inflates and secures it; the first electronically controlled cylinder automatically pulls the elbow + the second airbag supports the lower jaw; automatic shooting → real-time preview → archiving.

[0074] Control group: The technician manually adjusted the height of the robotic arm; the technician verbally instructed the patient to place the elbow on the plate; the patient applied the plate independently, and the technician assisted in pressing; the images were manually taken and manually transmitted to the workstation for processing.

[0075] 3. Data Collection

[0076] Fitting accuracy: The laser distance measuring unit records the gap between the chest cavity and the inspection plate (unit: mm);

[0077] Artifact scoring: blindly evaluated by three radiologists (1–5 points, 1 = severe artifact, 5 = no artifact);

[0078] Operation time: record the total time from patient positioning to completion of imaging (seconds);

[0079] Comfort feedback: Patient questionnaire rating (1–10 points, 10 = most comfortable).

[0080] Experimental data:

[0081] index Experimental group control group Thoracic space (mm) 1.2±0.3 5.8±1.5 Artifact scoring 4.6±0.4 2.9±0.8 Operation time (seconds) 86±12 142±25 Patient comfort 8.5±1.1 6.0±1.7

[0082] Experimental conclusion:

[0083] Significantly reduces artifacts: Through automated elbow traction + chin support, this device controls the chest fit gap within 1.2mm, improving the artifact score by 58.6%, especially improving the imaging quality of frail patients; improves operational efficiency: Full process automation (height adjustment → fixation → imaging → archiving) shortens operation time by 39.4% and reduces technician labor intensity; optimizes patient experience: Flexible fixation of the airbag and mechanical traction avoid uneven manual pressure, improving patient comfort by 41.7%.

[0084] Example 2:

[0085] As attached Figure 2 As shown, a medical image processing auxiliary method includes the following steps:

[0086] S1: Height adjustment: The height of the examination board 4 is adjusted according to the patient's height through the control module;

[0087] S2: Fixing the elbow: The patient places the elbow in the fixing box 8. The infrared photoelectric unit identifies the placement of the patient's elbow. Then, the control module controls the air pump 10 to inflate the first airbag 9 based on the signal feedback from the infrared photoelectric unit to fix the elbow. The pressure monitoring module determines the fixation status.

[0088] S3: Adjusting body position: The elbow is fixed in the fixing box 8. The control module controls the first electric control cylinder 5 to move the fixing box 8 toward the inspection plate 4. The laser distance measuring unit identifies the distance between the connecting block 6 and the inspection plate 4, thereby controlling the movement distance of the fixing box 8.

[0089] S4: Imaging: After the chest cavity is attached to the inspection plate 4, the control module controls the X-ray machine 3 to emit X-rays, and the image acquisition module receives the X-rays that have penetrated the human body and converts them into electrical signals;

[0090] S5: Image processing: The electrical signal converted by the image acquisition module is converted into a clear image through the image processing and preview module and the image is displayed in real time on the human-computer interaction screen. After the preview image is confirmed to be correct, the image is transmitted to the data storage and communication module for storage and synchronization.

[0091] To ensure that the infrared photoelectric unit can accurately identify the insertion of the elbow, the infrared photoelectric unit in S2 includes several infrared sensors. The model of the infrared sensor is preferably Omron EE-SX671. When more than a set number of infrared sensors are triggered, it is determined that the elbow is fully inserted.

[0092] In order to ensure that the moving distance of the fixed box 8 is appropriate and prevent elbow sprain caused by excessive moving distance, the laser ranging unit in S2 includes a laser transmitter and a laser receiver. By measuring the time it takes for the laser signal to be emitted and reflected by the target and then returned to the receiver, the distance is calculated using the constant speed of light.

[0093] The specific implementation process is as follows: the patient's basic body position is ensured through height adjustment, triggering the elbow fixation link; after the infrared sensor group intelligently recognizes that the elbow is fully inserted, it automatically triggers the air pump 10 to inflate and monitor the pressure to form a closed-loop fixation, providing stable support for body position adjustment; the laser transmitter and laser receiver cooperate to provide real-time feedback of distance data to drive the displacement of the electric control cylinder, so that the fixation box 8 and the inspection board 4 form a precise spatial relationship. This standardized body position directly guarantees the quality of subsequent imaging; X-ray emission and image acquisition work together in a stable body position;

[0094] After X-rays penetrate the human body and form raw image data, the image correction unit uses dark current correction to eliminate detector background noise, gain calibration to resolve pixel response inconsistencies, bad pixel repair to eliminate failed pixels, and geometric correction to ensure the image is distortion-free.

[0095] The corrected image is processed through an image adjustment unit that applies an adaptive noise reduction algorithm to suppress random noise while preserving texture details. Dynamic range compression or adaptive histogram equalization addresses the high dynamic range of chest radiographs, allowing the lung fields and mediastinal structures to be clearly displayed simultaneously. Edge enhancement technology is then combined to finely enhance rib edges, bronchial textures, and lesion boundaries, improving image clarity.

[0096] The image determination unit analyzes the clear image in real time based on preset rules. It uses threshold segmentation or region growing algorithms to identify the chest cavity boundary and detect positioning markers. It determines whether the projection range completely covers the lung apex to the costophrenic angle. It uses a histogram to analyze the average grayscale value of the lung field to assess whether the exposure dose is appropriate. It detects blur or double images in the overlapping area of ​​the ribs and spine to determine respiratory motion artifacts. It also evaluates exposure conditions by analyzing the visibility of the lung texture behind the heart to determine whether the image meets the usage standards.

[0097] Finally, the image processing unit detects the image according to the judgment result obtained by the image judgment unit. When missing range, severe motion blur or serious deviation of exposure from the standard is detected, a warning box will pop up on the operation interface to prompt the technician and automatically generate exposure parameter adjustment suggestions. For images that meet the quality standards, the image processing unit automatically applies the final optimized parameters to output DICOM images and transmits them to the image storage and communication module; and at the same time transmits them to the human-computer interaction screen. The instant feedback of the human-computer interaction screen enables the operator to verify the imaging effect on site. After confirmation, the data archiving is completed through the data storage and communication module. Each link is progressive with sensor feedback as the link, and finally achieves the full-chain optimization effect from body position standardization, imaging stability to data integrity.

[0098] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A medical image processing auxiliary device, comprising a human-computer interaction screen, a support column (1) and a U-shaped fixing frame, characterized in that: A sliding assembly for controlling the vertical sliding of the U-shaped fixing frame is provided on the support column (1); an X-ray machine (3) and an inspection plate (4) are fixedly connected to both ends of the U-shaped fixing frame (2); a signal of the X-ray machine (3) is connected to a control system; a first electric control cylinder (5) is fixedly connected to the bottom of the U-shaped fixing frame near the inspection plate (4); the first electric control cylinder (5) is connected to the control system signal; an output shaft of the first electric control cylinder (5) is fixedly connected to a connecting block (6); a side wall of the connecting block (6) away from the first electric control cylinder (5) is fixedly connected to a U-shaped connecting rod (7); and the U-shaped connecting rod (7) Both ends are fixedly connected with a fixing box (8), and the two fixing boxes (8) are respectively located on both sides of the inspection plate (4). The inner wall of the fixing box (8) is provided with a first airbag (9), and the first airbag (9) is provided with a pressure sensor. An air pump (10) is fixedly connected to the U-shaped fixing frame (2), and the air pump (10) is communicated with the first airbag (9). The air pump (10) is connected to the control system signal. A second airbag (11) is fixedly connected to the top of the inspection plate (4), and a filling component for inflating the second airbag (11) is provided on the second airbag (11); Before the patient is examined, the patient places his elbow in a fixing box (8), and the control system controls the air pump (10) to inflate the first air bag (9) to fix the patient's elbow. The control system then controls the first electric cylinder (5) to move the connecting block (6) toward the side of the inspection plate (4), and the connecting block (6) drives the U-shaped connecting rod (7) and the fixing box (8) to move toward the side of the inspection plate (4).

2. The medical image processing auxiliary device according to claim 1, wherein: The sliding assembly includes a slide groove (12), the slide groove (12) is opened in the support column (1), a slide rod (13) is slidably matched in the slide groove (12), a second electric control cylinder (14) is fixedly connected to the top wall of the slide groove (12), the second electric control cylinder (14) is connected to the control system signal, the slide rod (13) is fixedly connected to the output shaft of the second electric control cylinder (14), the slide rod (13) extends outside the slide groove (12), and the end of the slide rod (13) away from the slide groove (12) is fixedly connected to the U-shaped fixing frame.

3. The medical image processing auxiliary device according to claim 1, wherein: The filling component includes a channel (15), the channel (15) is connected to the second airbag (11), the other end of the channel (15) is connected to a push-pull cavity (16), the push-pull cavity (16) is fixedly connected to the side wall of the first electric control cylinder (5), the output shaft of the first electric control cylinder (5) is located in the push-pull cavity (16), the connecting block (6) is fixedly connected to the output shaft of the first electric control cylinder (5), and the connecting block (6) is connected to the side wall of the push-pull cavity (16) away from the first electric control cylinder (5).

4. The medical image processing auxiliary device according to claim 1, wherein: The control system includes: A pressure monitoring module is used to detect the pressure on the patient's elbow to determine the fixation status. The pressure monitoring module is signal-connected to the pressure sensor; an identification module for identifying the placement of the affected limb and the movement distance of the fixation box (8); An image acquisition module is provided on a side of the inspection plate (4) close to the X-ray machine (3), and is used to receive X-rays that are attenuated after penetrating the human body and convert the attenuated X-rays into electrical signals for imaging; Image processing module, used to process the electrical signal converted from X-rays, convert the electrical signal into a digital signal image, and display it in real time on the human-computer interaction screen for easy judgment; The data storage and communication module is used to save and transmit qualified images processed by the image processing module to realize data search and docking with the hospital information system; The control module is used to receive the pressure signal detected by the pressure monitoring module, and the fixation signal of the affected limb and the distance signal after fixation identified by the identification module, process the pressure signal, the fixation signal and the distance signal to determine the fit between the patient's chest cavity and the inspection plate (4), and generate corresponding control output according to the processing result.

5. The medical image processing auxiliary device according to claim 4, wherein: The identification module includes a laser distance measuring unit and an infrared photoelectric unit, the laser distance measuring unit is arranged on the side wall of the connecting block (6), and the infrared photoelectric unit is arranged on the inner side of the fixing box (8); The laser distance measuring unit is used to measure the distance between the connecting block (6) and the inspection plate (4); The infrared photoelectric unit is used to detect whether the patient's elbow is completely placed in the fixing box (8).

6. The medical image processing auxiliary device according to claim 4, wherein: The image processing module includes an image correction unit, an image adjustment unit, an image determination unit and an image processing unit; Image correction unit, used to eliminate detector noise, calibrate pixel response and correct geometric distortion; Image adjustment unit, used to optimize image quality, suppress noise, adjust dynamic range and enhance edge details; Image judgment unit, used to analyze image quality in real time and evaluate projection range, exposure dose and motion artifacts; The image processing unit is used to generate a warning or output an optimized image based on the determination result and transmit it to the storage module.

7. The medical image processing auxiliary device according to claim 4, wherein: The data storage and communication module includes a cache unit, a storage management unit and a database unit; A buffer unit receives DICOM format image data from the image processing module; The storage management unit classifies and migrates data according to preset policies; The database unit maps DICOM tags to storage paths and records device status logs and operation audits.

8. A medical image processing auxiliary method, operating based on the structure of the medical image processing auxiliary device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Height adjustment: adjusting the height of the examination board (4) according to the patient's height through the control module; S2: Fixing the elbow: The patient places the elbow in the fixing box (8), and the placement of the patient's elbow is identified by the infrared photoelectric unit. Then, the control module controls the air pump (10) to inflate and fix the first airbag (9) based on the signal feedback from the infrared photoelectric unit, and the fixing status is determined by the pressure monitoring module; S3: Adjusting the body position: fixing the elbow in the fixing box (8), the control module controls the first electric control cylinder (5) to drive the fixing box (8) to move toward the side close to the inspection plate (4), and the laser distance measuring unit identifies the distance between the connecting block (6) and the inspection plate (4), thereby controlling the moving distance of the fixing box (8); S4: Illumination and imaging: After the chest cavity is attached to the inspection plate (4), the control module controls the X-ray machine (3) to emit X-rays, and the image acquisition module receives the X-rays that have penetrated the human body and converts them into electrical signals; S5: Image processing: The electrical signal converted by the image acquisition module is converted into a clear image through the image processing and preview module and the image is displayed in real time on the human-computer interaction screen. After the preview image is confirmed to be correct, the image is transmitted to the data storage and communication module for storage and synchronization.

9. The medical image processing auxiliary method according to claim 8, characterized in that: The laser ranging unit in S2 includes a laser transmitter and a laser receiver. It calculates the distance by measuring the time it takes for the laser signal to be emitted, reflected by the target and returned to the receiver, using the constant speed of light.

10. The medical image processing auxiliary method according to claim 8, wherein: The infrared photoelectric unit in S2 includes a number of infrared sensors. When more than a set number of infrared sensors are triggered, it is determined that the elbow has been fully inserted.

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