Medical image shooting body position automatic calibration device

Abstract

The application relates to the technical field of medical equipment, in particular to a medical image shooting body position automatic calibration device, which comprises a base, a calibration device arranged on the base, an image shooting device arranged on one side of the calibration device, a translation lifting mechanism and a calibration mechanism, the horizontal position of a patient is adjusted through cooperation of a guide rail of the translation lifting mechanism and a sliding plate, the height of the patient is adjusted through cooperation of a shearing type supporting rod and a rotating rod, so that the body position of patients with different heights is adapted, and the horizontal and height direction preliminary alignment of the patient and the image shooting device is quickly completed; the sliding of a sliding strip is driven by a cylinder of the calibration mechanism, two groups of the sliding strips are symmetrically linked through cooperation of a rotating plate and a pull rod, arc-shaped plate one and arc-shaped plate two are driven to limit and calibrate the two sides of the body of the patient, so that the shooting position of the patient and the shooting center of the image shooting device are automatically and accurately positioned, and the body position calibration precision and consistency are improved.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology, specifically to an automatic body positioning calibration device for medical imaging. Background Technology

[0002] In the field of medical imaging diagnosis, the accuracy of the patient's positioning directly affects the reliability of the diagnostic results. Therefore, positioning calibration is a crucial step in the medical imaging process. Currently, clinically common medical imaging positioning calibration relies on manual adjustments by medical staff or adjustments made by the patient based on verbal instructions from medical staff. That is, medical staff guide the patient to adjust their standing position based on information such as the patient's height and the imaging site, while manually adjusting the height and angle of the imaging device to achieve alignment.

[0003] However, traditional manual calibration methods have many limitations: on the one hand, calibration accuracy is highly dependent on the experience and proficiency of medical staff. Different medical staff have different calibration standards, which can easily lead to poor consistency in the imaging position, thus affecting the accuracy of image diagnosis, and may even lead to missed diagnosis or misdiagnosis due to positional deviation; on the other hand, the manual adjustment process is cumbersome and requires repeated communication and cooperation between medical staff and patients, which not only reduces the efficiency of image shooting and increases the workload of medical staff, but may also cause patients to feel fatigued due to excessive adjustment time, making it difficult for them to maintain a stable position, further affecting the calibration effect.

[0004] Furthermore, existing calibration methods are poorly adaptable to patients of different heights, making it difficult to quickly and accurately align the patient's imaging site with the imaging device's center. Manual calibration is even more challenging for patients with limited mobility or low cooperation. To address these issues, there is an urgent need for a device capable of automatically adjusting body position, translating, and precisely calibrating to improve the efficiency and accuracy of medical imaging, reduce the operational burden on medical staff, and enhance the patient's examination experience. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic posture calibration device for medical imaging to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this application to solve its technical problem is: an automatic body position calibration device for medical imaging, comprising: a base, on which a calibration device is disposed, and an imaging device is mounted on one side of the calibration device on the base, and further comprising:

[0007] A translational lifting mechanism includes a guide rail mounted on a base, a sliding plate slidably mounted on the guide rail, and a lifting component mounted on the sliding plate. The translational lifting mechanism is used to adjust the body position and move the patient according to different heights.

[0008] The calibration mechanism includes a set of sliding bars disposed above a sliding plate, a set of connecting rods fixedly disposed on the sliding bars, an arc-shaped plate one fixedly disposed on the connecting rods, and an arc-shaped plate two fixedly disposed at the end of the arc-shaped plate one. The calibration mechanism is used for position calibration between the patient and the imaging device.

[0009] Preferably, the image capturing device includes a fixed column, a guide groove, a guide block, and a camera. The fixed column is mounted on a base, and a guide groove is provided on the fixed column. A guide block is slidably disposed in the guide groove. The guide block is fixedly connected to the camera. Hand grips are also fixedly installed on both sides of the camera.

[0010] Preferably, the lifting assembly further includes a fixing plate fixedly mounted on the sliding plate, a scissor brace is provided above the fixing plate, and a standing plate is provided above the scissor brace.

[0011] Preferably, a through groove is provided above both the standing plate and the fixed plate, and a connecting shaft is slidably disposed in the through groove, the connecting shaft being rotatably connected to the scissor rod.

[0012] Preferably, the standing plate is threaded with a rotating rod, which is used to control the rotation of the scissor brace.

[0013] Preferably, a vertical plate is fixedly disposed on the sliding plate, and a C-shaped plate is fixedly installed on the vertical plate.

[0014] Preferably, a set of mounting rods is fixedly installed on the vertical plate, the mounting rods are located on the rear side of the C-shaped plate, and each mounting rod is fixedly equipped with a slide rail.

[0015] Preferably, the slide rail is symmetrically and slidably provided with connecting blocks, and every two connecting blocks are fixedly connected to the slide bar.

[0016] Preferably, a rotating shaft is fixedly mounted on the mounting rod, a rotating plate is rotatably mounted on the outer surface of the rotating shaft, and pull rods are rotatably mounted at both ends of the rotating plate. The ends of the pull rods away from the rotating plate are rotatably connected to the sliding strip.

[0017] Preferably, a cylinder is fixedly mounted on the mounting rod, and the end of the output shaft of the cylinder is fixedly connected to one of the sliding bars.

[0018] The beneficial effects of this application are:

[0019] This application provides an automatic medical imaging positioning calibration device, which uses the guide rail and sliding plate of the translation and lifting mechanism to adjust the patient's horizontal position and the scissor rod and rotating rod to adjust the patient's height, thereby achieving the effect of adapting to the body position of patients of different heights and quickly completing the initial alignment of the patient with the imaging device in the horizontal and vertical directions.

[0020] This application provides an automatic posture calibration device for medical imaging. A cylinder in the calibration mechanism drives sliding strips, which, in conjunction with a rotating plate and a pull rod, achieve symmetrical linkage between two sets of sliding strips. This causes two arc-shaped plates (one and two) to perform limit calibration on both sides of the patient's body, thereby achieving automatic and precise positioning of the patient's imaging site relative to the imaging device's center, improving the accuracy and consistency of posture calibration. A C-shaped plate on the vertical plate allows the patient's back to rest against it, and handgrips on both sides of the imaging device provide support, thus improving the patient's standing stability and preventing posture shifting during imaging.

[0021] This application provides an automatic body positioning calibration device for medical imaging. The device automates the adjustment and calibration of body positions, reducing manual adjustment and guidance steps for medical staff. This reduces their workload and improves the efficiency of medical imaging. By replacing traditional manual calibration methods that rely on the experience of medical staff with automated calibration, it avoids human error, improves the accuracy of imaging, and reduces the risk of missed or misdiagnosed diagnoses due to body positioning deviations.

[0022] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be further described in detail below with reference to figures. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0025] Figure 3 This is a partial structural diagram of the translation and lifting mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the vertical plate sidewall mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the vertical plate sidewall mechanism of the present invention from another perspective;

[0028] Figure 6 This is a schematic diagram of the overall structure of the calibration mechanism of the present invention.

[0029] Drawing number explanation:

[0030] 1. Base; 2. Calibration device; 3. Image capturing device; 4. Guide rail; 5. Sliding plate; 6. Fixing plate; 7. Scissor rod; 8. Standing plate; 9. Through slot; 10. Connecting shaft; 11. Rotating rod; 12. Vertical plate; 13. C-shaped plate; 14. Mounting rod; 15. Slide rail; 16. Connecting block; 17. Sliding bar; 18. Rotating shaft; 19. Rotating plate; 20. Pull rod; 21. Cylinder; 22. Connecting rod; 23. Arc plate one; 24. Arc plate two. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0033] Please refer to Figures 1 to 6 An automatic calibration device for medical imaging positions includes: a base 1, a calibration device 2 disposed on the base 1, an imaging device 3 mounted on one side of the calibration device 2 on the base 1, the imaging device 3 including a fixed column, a guide groove, a guide block and an imaging machine, the fixed column is mounted on the base 1, the fixed column has a guide groove, a guide block is slidably disposed in the guide groove, the guide block is fixedly connected to the imaging machine, and hand grips are fixedly installed on both sides of the imaging machine.

[0034] This embodiment discloses an automatic medical imaging positioning calibration device, aiming to achieve precise and automatic calibration of the imaging positioning of patients of different heights, thereby improving the accuracy and convenience of medical imaging. The device is based on a base 1, with various functional mechanisms integrated into the base 1 and related supporting structures. The specific structural configuration is as follows: The base 1 integrates three core functional mechanisms: a translation and lifting mechanism, an imaging device 3, and a calibration mechanism. The translation and lifting mechanism is directly mounted on the surface of the base 1, the imaging device 3 is located on the base 1 to one side of the translation and lifting mechanism, and the calibration mechanism is integrated into the supporting structure of the translation and lifting mechanism. These three mechanisms work together to achieve linkage between positioning calibration and imaging. The imaging device 3 consists of a fixed column, a guide groove, a guide block, an imaging camera, and a handgrip. The fixed column is fixed to the base 1, the guide groove is opened along the height direction of the fixed column, the guide block is slidably embedded in the guide groove and fixedly connected to the imaging camera, allowing the imaging camera to be adjusted up and down along the guide groove. The handgrip is symmetrically fixed on both sides of the imaging camera for easy gripping by the patient to maintain their position.

[0035] Please refer to Figures 1 to 5 An automatic body position calibration device for medical imaging also includes: a translation and lifting mechanism, which includes a guide rail 4 mounted on a base 1, a sliding plate 5 slidably mounted on the guide rail 4, and a lifting component mounted on the sliding plate 5. The translation and lifting mechanism is used to adjust the body position and translate according to the patient's height.

[0036] Furthermore, the lifting assembly also includes a fixed plate 6 fixedly mounted on the sliding plate 5, a scissor-type support rod 7 above the fixed plate 6, and a standing plate 8 above the scissor-type support rod 7. During the examination, the patient stands on the standing plate 8. Both the standing plate 8 and the fixed plate 6 have through grooves 9 on their tops, and a connecting shaft 10 is slidably mounted within the through grooves 9, rotatably connected to the scissor-type support rod 7. A rotating rod 11 is threaded onto the standing plate 8, used to control the rotation of the scissor-type support rod 7. A vertical plate 12 is fixedly mounted on the sliding plate 5, and a C-shaped plate 13 is fixedly installed on the vertical plate 12. The C-shaped plate 13 is used for the patient's back to rest against.

[0037] In the above embodiment, the translation and lifting mechanism includes a guide rail 4, a sliding plate 5, a lifting assembly, a vertical plate 12, and a C-shaped plate 13. The guide rail 4 is fixedly laid on the base 1, and the sliding plate 5 slides with the guide rail 4 to achieve translation. The lifting assembly is assembled on the sliding plate 5 and consists of a fixed plate 6, a scissor rod 7, a standing plate 8, a connecting shaft 10, and a rotating rod 11. The fixed plate 6 is fixed above the sliding plate 5, and the scissor rod 7 is disposed between the fixed plate 6 and the standing plate 8. Both the fixed plate 6 and the standing plate 8 have through slots 9. The connecting shaft 10 slides through the through slots 9 and is rotatably connected to the scissor rod 7. The rotating rod 11 is threaded through the standing plate 8, and can drive the scissor rod 7 to rotate to achieve the lifting and lowering of the standing plate 8 by rotating it. The vertical plate 12 is vertically fixed on the sliding plate 5, and the C-shaped plate 13 is fixed on the surface of the vertical plate 12 for the patient's back to lean against, improving the stability of the patient's standing.

[0038] Please refer to Figure 1 as well as Figures 4 to 6 An automatic positioning calibration device for medical imaging further includes: a calibration mechanism, which includes a set of sliding bars 17 disposed above a sliding plate 5, a set of connecting rods 22 fixedly disposed on the sliding bars 17, an arc plate 23 fixedly disposed on the connecting rods 22, and an arc plate 24 fixedly disposed at the end of the arc plate 23. The calibration mechanism is used for positioning calibration between the patient and the imaging device 3.

[0039] A set of mounting rods 14 are fixedly installed on the vertical plate 12, located behind the C-shaped plate 13. Each mounting rod 14 is fixedly equipped with a slide rail 15. Connecting blocks 16 are symmetrically and slidably arranged on the slide rails 15, with every two connecting blocks 16 fixedly connected to a sliding strip 17. A rotating shaft 18 is fixedly installed on the mounting rod 14, and a rotating plate 19 is rotatably mounted on the outer surface of the rotating shaft 18. Pull rods 20 are rotatably mounted at both ends of the rotating plate 19, with the ends of the pull rods 20 furthest from the rotating plate 19 rotatably connected to the sliding strips 17. A cylinder 21 is fixedly installed on the mounting rod 14, and the output shaft end of the cylinder 21 is fixedly connected to one of the sliding strips 17.

[0040] In the above embodiments, the calibration mechanism includes a sliding bar 17, a connecting rod 22, an arc plate 1 23, an arc plate 24, a mounting rod 14, a slide rail 15, a connecting block 16, a rotating shaft 18, a rotating plate 19, a pull rod 20, and a cylinder 21. Mounting rod 14 is symmetrically fixed on vertical plate 12 and located behind C-shaped plate 13. Slide rail 15 is fixed on the surface of mounting rod 14. Connecting block 16 is symmetrically slidably assembled on slide rail 15. Sliding strip 17 is fixedly connected to two sets of symmetrical connecting blocks 16 to achieve smooth sliding of sliding strip 17 along slide rail 15. Connecting rod 22 is fixed on sliding strip 17. Arc plate one 23 is fixed to the end of connecting rod 22 away from sliding strip 17. Arc plate two 24 is fixed to the end of arc plate one 23 to form a calibration structure that conforms to the patient's body contour. Rotating shaft 18 is fixed on mounting rod 14. Rotating plate 19 is rotatably sleeved on the outer surface of rotating shaft 18. Both ends of pull rod 20 are rotatably connected to the end of rotating plate 19 and sliding strip 17 respectively to form a linkage transmission structure. Cylinder 21 is fixed on mounting rod 14. Its output shaft is fixedly connected to one set of sliding strip 17 to provide driving force for sliding of sliding strip 17.

[0041] In summary, the working process of this automatic body positioning calibration device for medical imaging mainly consists of four stages: body positioning preparation, translation and lifting adjustment, precise body positioning calibration, and image capture. Each stage achieves automatic calibration through the coordinated action of its various mechanisms. The specific working principle is as follows:

[0042] When a patient needs to have medical imaging taken, he should first stand on the standing plate 8 of the translation and lifting mechanism and place his back against the C-shaped plate 13 on the vertical plate 12.

[0043] Based on the patient's height and the required imaging location, the operator adjusts the patient's position by raising, lowering, and shifting the image using a translation and lifting mechanism. During raising / lowering adjustment, rotating the rotating rod 11 on the standing plate 8 drives the scissor-type support rod 7 to rotate around the connecting shaft 10 via a threaded transmission. Since the connecting shaft 10 is slidably fitted into the through slot 9 between the fixed plate 6 and the standing plate 8, the rotation of the scissor-type support rod 7 causes the standing plate 8 to rise and fall vertically, thereby causing the patient to rise and fall synchronously until the imaging location reaches a suitable height. During shifting adjustment, the sliding plate 5 slides along the guide rail 4 on the base 1, causing the upper lifting assembly and the patient to shift synchronously, achieving an initial adjustment of the horizontal distance between the patient and the imaging device 3.

[0044] After initial adjustment, the calibration mechanism is activated to precisely calibrate the position between the patient and the imaging device 3. After cylinder 21 is activated, its output shaft extends and retracts, driving a set of sliding bars 17 fixedly connected to it to slide along slide rail 15. These sliding bars 17, via pull rod 20, drive rotating plate 19 to rotate around shaft 18. Pull rod 20 at the other end of rotating plate 19 drives another set of sliding bars 17 to slide symmetrically along slide rail 15. When the two sets of sliding bars 17 slide synchronously, the connecting rod 22 drives arc plate one 23 and arc plate two 24 to move synchronously closer to or further away from the patient. Arc plate one 23 and arc plate two 24 are used to limit and calibrate the patient's sides and arms, ensuring that the patient's imaging area is aligned with the imaging center of the imaging device 3, achieving precise positioning.

[0045] Once the patient's position is calibrated, the sliding plate 5 on the guide rail 4 moves the patient to be in contact with the imaging device 3. Then, the calibration device 2 is removed. During the imaging process, the patient can hold the lever to further stabilize their position and ensure the imaging quality. Finally, the height of the imaging device 3 is adjusted according to the imaging requirements. The imaging machine is raised and lowered by sliding the guide block along the guide groove of the fixed column until the imaging machine reaches the appropriate imaging height. Then, the imaging machine is started to complete the medical imaging of the designated part of the patient.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary. Under the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0047] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An automatic posture calibration device for medical imaging, comprising: A base (1), on which a calibration device (2) is provided, and on one side of the calibration device (2) is an image capturing device (3) mounted on the base (1), characterized in that it further includes: The translation and lifting mechanism includes a guide rail (4) set on the base (1), a sliding plate (5) slidably set on the guide rail (4), and a lifting component installed on the sliding plate (5). The translation and lifting mechanism is used to perform body position lifting and translation according to patients of different heights. The calibration mechanism includes a set of sliding bars (17) disposed above the sliding plate (5), a set of connecting rods (22) fixedly disposed on the sliding bars (17), an arc plate one (23) fixedly disposed on the connecting rods (22), and an arc plate two (24) fixedly disposed at the end of the arc plate one (23). The calibration mechanism is used for position calibration between the patient and the imaging device (3).

2. The automatic body positioning calibration device for medical imaging according to claim 1, characterized in that, The image capturing device (3) includes a fixed column, a guide groove, a guide block and a camera. The fixed column is installed on the base (1). A guide groove is provided on the fixed column. A guide block is slidably arranged in the guide groove. The guide block is fixedly connected to the camera. Hand grips are also fixedly installed on both sides of the camera.

3. The automatic body positioning calibration device for medical imaging according to claim 1, characterized in that, The lifting assembly also includes a fixing plate (6) fixedly mounted on the sliding plate (5), a scissor rod (7) above the fixing plate (6), and a standing plate (8) above the scissor rod (7).

4. The automatic body positioning calibration device for medical imaging according to claim 3, characterized in that, Both the standing plate (8) and the fixing plate (6) are provided with through grooves (9), and a connecting shaft (10) is slidably arranged in the through grooves (9). The connecting shaft (10) is rotatably connected to the scissor rod (7).

5. The automatic body positioning calibration device for medical imaging according to claim 4, characterized in that, A rotating rod (11) is threaded onto the standing plate (8), and the rotating rod (11) is used to control the rotation of the scissor support (7).

6. The automatic body positioning calibration device for medical imaging according to claim 1, characterized in that, A vertical plate (12) is fixedly installed on the sliding plate (5), and a C-shaped plate (13) is fixedly installed on the vertical plate (12).

7. The automatic body positioning calibration device for medical imaging according to claim 6, characterized in that, A set of mounting rods (14) is fixedly installed on the vertical plate (12). The mounting rods (14) are located on the rear side of the C-shaped plate (13). Each mounting rod (14) is fixedly equipped with a slide rail (15).

8. The automatic body positioning calibration device for medical imaging according to claim 7, characterized in that, The slide rail (15) is symmetrically and slidably provided with connecting blocks (16), and every two connecting blocks (16) are fixedly connected to the sliding bar (17).

9. The automatic body positioning calibration device for medical imaging according to claim 8, characterized in that, A rotating shaft (18) is fixedly installed on the mounting rod (14). A rotating plate (19) is rotatably provided on the outer surface of the rotating shaft (18). Pull rods (20) are rotatably provided at both ends of the rotating plate (19). The end of the pull rod (20) away from the rotating plate (19) is rotatably connected to the sliding bar (17).

10. The automatic body positioning calibration device for medical imaging according to claim 9, characterized in that, A cylinder (21) is fixedly mounted on the mounting rod (14), and the end of the output shaft of the cylinder (21) is fixedly connected to one of the sliding bars (17).

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