A medical image acquisition device

Abstract

The present invention relates to the technical field of medical devices, and specifically relates to a medical image acquisition device, which includes a column, a driving motor, a bushing, a flat panel detector, an adjustment mechanism, a support plate, a fixing component, and a push rod; a driving motor is fixedly installed on the column, and a bushing is slidably installed on the driving motor; the bushing is rotatably installed with the flat panel detector; an adjustment mechanism is provided above the bushing. When the flat panel detector performs image acquisition, the adjustment mechanism drives the flat panel detector to deflect; a support plate is fixedly installed on the bushing, a driving cavity is formed on the support plate, a fixing component is installed in the driving cavity, the push rod is located in the driving cavity, and when the flat panel detector deflects, the adjustment mechanism drives the push rod to slide horizontally through the fixing component. The present invention realizes multi-angle adjustment of the flat panel detector through rotational movement, thereby improving the diversity of image data acquisition and the accuracy of acquisition.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a medical image acquisition device. Background Art

[0002] Medical imaging devices are widely used in various clinical departments. By interacting with the human body through certain media, such as X-rays, electromagnetic fields, and ultrasonic waves, the internal tissue and organ structures and densities of the human body are presented in the form of images for diagnostic medical staff to make judgments.

[0003] As a commonly used medical imaging device, an X-ray machine mainly consists of an X-ray generator and a flat panel detector. The X-ray machine emits X-rays through the X-ray generator. During the process of the X-rays passing through the patient's body, a part of the X-rays is absorbed by the bones and organs, and the other part of the unabsorbed X-rays falls on the flat panel detector and is collected by the flat panel detector to complete the processes of X-ray information detection, energy conversion, quantization, information transmission, etc., and finally form a digital X-ray image.

[0004] When detecting the human heart and lungs with X-rays, the patient needs to keep the body close to the flat panel detector and change the body position according to the doctor's advice to better obtain X-ray images. However, during the process of changing the body position, there will be a problem of deviation in body position change, which will lead to inaccurate acquisition of X-ray information passing through the human body by the flat panel detector, resulting in inaccurate X-ray images and affecting the doctor's diagnosis.

[0005] Therefore, the prior art has proposed a medical imaging device that reduces the generation of artifacts and improves the imaging efficiency and image accuracy of the medical imaging device by scanning the physiological signals of the patient and realizing the gating trigger of the medical imaging device according to the physiological signals, but still does not solve the problem of inaccurate image acquisition caused by body position changes.

[0006] In view of this, we propose a medical image acquisition device. Summary of the Invention

[0007] The purpose of the present invention is to provide a medical image acquisition device to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A medical imaging acquisition device, comprising a column, a driving motor, a bushing, a flat panel detector, an adjusting mechanism, a support plate, a fixing component and a top rod; a driving motor is fixedly installed on the column, a thread is provided on the driving motor, and a bushing is slidably installed on the driving motor; the bushing is rotatably installed with the flat panel detector, an X-ray machine is arranged in front of the flat panel detector, the X-ray machine is slidably installed on the roof and slides through a slide rail, thereby changing the distance from the flat panel detector, and the flat panel detector is used for collecting the X-rays passing through the human body to realize imaging;

[0010] A screw groove is provided on the bushing, an adjusting mechanism is arranged above the bushing, when the flat panel detector performs image acquisition, the adjusting mechanism drives the flat panel detector to deflect, and the deflection of the flat panel detector realizes multi-angle acquisition of the human chest cavity, avoiding the influence of the patient's overly frequent body posture change on image acquisition; a support plate is fixedly installed on the bushing, a driving cavity is provided on the support plate, a fixing component is installed in the driving cavity, the top rod is located in the driving cavity, when the flat panel detector deflects, the adjusting mechanism drives the top rod to slide horizontally through the fixing component, the top rod slides horizontally and extends to support the flat panel detector, and at the same time, the sliding distance of itself is adjusted according to the deflection angle of the flat panel detector to improve the stability of the flat panel detector and avoid the appearance of artifacts caused by the shaking of the flat panel detector.

[0011] Preferably, a circular sliding groove is provided on the bushing, and a positioning groove is provided in the circular sliding groove; a circular sliding block is provided on the flat panel detector, and a positioning convex block is provided on the circular sliding block. The relative rotation between the bushing and the flat panel detector is realized through the cooperation of the circular sliding groove and the circular sliding block, and the friction between the two is enhanced through the positioning groove and the positioning convex block, thereby improving the stability when the flat panel detector rotates and ensuring the accuracy of the angle deflection of the flat panel detector.

[0012] Preferably, the adjusting mechanism includes a micro motor, a worm, a worm gear, a rotating shaft, a crank, a rocker, a swing rod and a limiting column; the micro motor is fixedly installed on the column, and the micro motor is fixedly connected with the worm; a worm gear is arranged on one side of the worm; the worm gear is fixedly installed with the rotating shaft, the rotation of the micro motor drives the worm to rotate synchronously, the worm drives the worm gear to rotate horizontally, and the worm further drives the rotating shaft to rotate synchronously; the rotating shaft is rotatably installed with the column, and the lower end of the rotating shaft extends into the driving cavity of the support plate; one end of the crank is connected with the rotating shaft, and the other end of the crank is rotatably connected with the rocker; the rocker and the swing rod are connected through a limiting column; the swing rod is connected with the flat panel detector, and the crank, the rocker and the swing rod form a three-link mechanism to drive the flat panel detector to swing synchronously. The rotating shaft rotates under the action of the worm gear, so that the rotating shaft drives the crank fixedly connected with it to make a circular motion, the crank pulls the rocker to swing, the rocker drives the swing rod to slide, and the swing rod pulls the flat panel detector to rotate relative to the bushing.

[0013] Preferably, the rotating shaft includes a fixed shaft, a sliding shaft, and a tension spring; the fixed shaft is fixedly connected to the worm gear and is rotatably connected to the column; the sliding shaft is slidably installed within the fixed shaft, and the sliding shaft and the inner wall of the fixed shaft are connected by a tension spring. The lower end of the sliding shaft is fixedly connected to a crank. The fixed shaft is rotatably installed on the column through a bearing and is fixedly connected to the worm gear, rotating synchronously with the worm gear, thereby driving the sliding shaft to rotate synchronously. The sliding shaft and the fixed shaft can rotate relative to each other. When the flat panel detector adjusts its own height, the sliding shaft will move synchronously with the flat panel detector and be stretched.

[0014] Preferably, an arc-shaped sliding groove is formed in the support plate, and the limiting post is located within the arc-shaped sliding groove. The arc-shaped sliding groove restricts the sliding trajectory of the limiting post, thereby restricting the swing of the swing rod, so that the swing rod moves along a fixed trajectory, improving the stability of the rotation of the flat panel detector.

[0015] Preferably, friction lines are provided on the inner wall of the arc-shaped sliding groove, and the thickness of the friction lines at both ends of the arc-shaped sliding groove is greater than that at the middle. The friction lines are used to enhance the friction force between the limiting post and the arc-shaped sliding groove, thereby preventing the limiting post from shaking. At the same time, as the deflection angle of the flat panel detector increases, the sliding distance of the limiting post within the arc-shaped sliding groove increases. The closer to the end point of the arc-shaped sliding groove, the greater the friction force and the greater the fixing force on the limiting post, avoiding the phenomenon that as the deflection angle of the flat panel detector increases, the acting force between the flat panel detector and the human body increases, causing the flat panel detector to shake.

[0016] Preferably, the top of the top rod is a hemispherical structure. The top rod is divided into a left top rod and a right top rod. When the flat panel detector rotates, regardless of the size of the deflection angle, the hemispherical structure enables the top rod to always contact the flat panel detector and play a supporting role for the flat panel detector.

[0017] Preferably, the fixing assembly includes a driving wheel, a driving rack, a transfer rack, a transmission wheel, and a transmission rack; the driving wheel is located within the driving cavity and is fixedly connected to the sliding shaft. The rotating shaft rotates under the action of the worm gear, thereby driving the driving wheel to rotate synchronously. The driving wheel is respectively provided with a driving rack and a transfer rack; the driving rack and the transfer rack are perpendicularly arranged; the driving rack is fixedly connected to the left top rod. When the driving wheel rotates, it drives the driving rack to slide horizontally, and the driving rack drives the left top rod to slide synchronously. At the same time, the driving wheel drives the transfer rack to slide horizontally; a transmission wheel is provided in front of the transfer rack; the transmission rack is perpendicularly arranged with the transfer rack and meshes with the transmission wheel; the transmission rack is connected to the right top rod. The transfer rack slides horizontally to drive the transmission wheel to rotate, and the transmission wheel then drives the transmission rack to slide, and the transmission rack drives the right top rod to slide horizontally.

[0018] Preferably, the transmission ratio of the driving rack to the driving wheel is the same as that of the transmission rack to the transmission wheel. The same transmission ratio makes the sliding distances of the left ejector rod and the right ejector rod the same, thereby ensuring that the supporting forces received by the flat panel detector are the same and guaranteeing the stability of the deflection of the flat panel detector.

[0019] Preferably, push plates are symmetrically arranged at the middle end of the transmission rack; the push plates are engaged with the limit posts, and the push plates and the arc-shaped chutes cooperate with each other to limit the sliding trajectory of the limit posts, thereby restricting the sliding trajectory of the swing rod and ensuring the stability of the movement of the three-link mechanism, and thus guaranteeing the stability of the deflection of the flat panel detector.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] A medical image acquisition device realizes the multi-angle rotation of the flat panel detector through the cooperation of the adjustment mechanism and the fixing component, improves the diversity of image acquisition of the flat panel detector, realizes multi-angle comparison, and improves the diagnostic accuracy.

[0022] A medical image acquisition device improves the stability of the flat panel detector through the fixing component, avoiding the phenomenon that the flat panel detector shakes, resulting in image acquisition errors and artifacts, which affect the diagnosis of medical staff.

[0023] A medical image acquisition device realizes the rotation of the flat panel detector through the adjustment mechanism, and thus realizes multi-angle shooting of the patient's diagnosis area, avoiding the influence of the patient's frequent change of body position or incorrect body position on the accuracy of image data acquisition. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a semi-sectional view of the overall structure of the present invention;

[0025] Figure 2 is of the present invention Figure 1 partial enlarged view of point A;

[0026] Figure 3 is a horizontal sectional view of the overall structure of the present invention;

[0027] Figure 4 is of the present invention Figure 2 partial enlarged view of point B;

[0028] Figure 5 is a horizontal sectional view of the support plate of the present invention;

[0029] Figure 6 is a semi-sectional view of the flat panel detector and the bushing of the present invention;

[0030] Figure 7 is of the present invention Figure 6 partial enlarged view of point C;

[0031] Figure 8 It is an overall schematic diagram of the adjustment mechanism of the present invention;

[0032] Figure 9 It is a partial schematic diagram of the flat panel detector and the adjustment mechanism of the present invention;

[0033] Figure 10 A half-section view of the rotating shaft of the present invention;

[0034] Figure 11 It is an overall schematic diagram of the fixing assembly of the present invention.

[0035] In the figure:

[0036] 1. Column;

[0037] 2. Drive motor;

[0038] 3. Shaft sleeve; 31. Annular slide groove; 311. Positioning groove;

[0039] 4. Flat panel detector; 41. Ring slide block; 411. Positioning protrusion;

[0040] 5. Adjustment mechanism; 51. Micro motor; 52. Worm; 53. Worm wheel; 54. Rotating shaft; 541. Fixed shaft; 542. Sliding shaft; 543. Tension spring; 55. Crank; 56. Rocker; 57. Rocker; 58. Limiting column;

[0041] 6. Support plate; 61. Driving cavity; 62. Arc-shaped slide groove; 621. Friction pattern;

[0042] 7. Fixed assembly; 71. Driving wheel; 72. Active rack; 73. Transfer rack; 731. Push plate; 74. Transmission wheel; 75. Transmission rack;

[0043] 8. Push rod; 81. Hemispherical structure; 82. Left push rod; 83. Right push rod. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] A technical solution provided by the present invention:

[0046] like Figures 1 to 11As shown in the figure, a medical imaging acquisition device includes a column 1, a drive motor 2, a bushing 3, a flat panel detector 4, an adjustment mechanism 5, a support plate 6, a fixing component 7, and a push rod 8; the drive motor 2 is fixedly installed on the column 1, the drive motor 2 is provided with a thread, and the bushing 3 is slidably installed on the drive motor 2; the bushing 3 is provided with a thread groove, the bushing 3 is rotatably installed with the flat panel detector 4, and the drive motor 2 cooperates with the thread groove provided on the bushing 3 through the thread to convert the rotation of the motor itself into the vertical sliding of the bushing 3. An X-ray machine is provided in front of the flat panel detector 4, and the X-ray machine is slidably installed on the roof and slides through a slide rail, thereby changing the distance from the flat panel detector 4 to improve the detection accuracy. The X-ray machine emits X-rays, which pass through the human body and are absorbed and then fall on the flat panel detector 4. The flat panel detector 4 is used to collect the X-rays passing through the human body to achieve imaging;

[0047] An adjustment mechanism 5 is provided above the bushing 3. When the flat panel detector 4 performs image acquisition, the adjustment mechanism 5 drives the flat panel detector 4 to deflect. The deflection of the flat panel detector 4 realizes multi-angle acquisition of the human chest cavity, avoiding the influence of the patient's overly frequent body posture changes on image acquisition; a circular chute 31 is provided on the bushing 3, and a positioning groove 311 is provided in the circular chute 31; a circular slider 41 is provided on the flat panel detector 4, and a positioning protrusion 411 is provided on the circular slider 41. The relative rotation between the bushing 3 and the flat panel detector 4 is realized through the cooperation of the circular chute 31 and the circular slider 41. Moreover, the friction between the two is enhanced through the positioning groove 311 and the positioning protrusion 411, thereby improving the stability of the flat panel detector 4 during rotation, ensuring the accuracy of the angle deflection of the flat panel detector 4. At the same time, the stability of the flat panel detector 4 during height adjustment is ensured, ensuring that it will not rotate relative to the bushing 3. When the height of the flat panel detector 4 needs to be adjusted, the drive motor 2 drives the bushing 3 to slide vertically, and the bushing 3 squeezes the circular chute 31 through the circular slider 41, thereby driving the flat panel detector 4 to slide synchronously with itself for height adjustment; when the angle of the flat panel detector 4 needs to be adjusted, the bushing 3 remains fixed, and the relative rotation between the flat panel detector 4 and the bushing 3 is realized through the cooperation of the circular chute 31 and the circular slider 41;

[0048] A support plate 6 is fixedly installed on the bushing 3. A drive cavity 61 is formed in the support plate 6. A fixing component 7 is installed in the drive cavity 61. The ejector rod 8 is located in the drive cavity 61. When the flat panel detector 4 deflects, the adjusting mechanism 5 drives the ejector rod 8 to slide horizontally through the fixing component 7. The ejector rod 8 slides horizontally and extends to support the flat panel detector 4. At the same time, according to the deflection angle of the flat panel detector 4, its own sliding distance is adjusted to improve the stability of the flat panel detector 4 and avoid the appearance of artifacts caused by the shaking of the flat panel detector 4. The top end of the ejector rod 8 is a hemispherical structure 81. The ejector rod 8 is divided into a left ejector rod 82 and a right ejector rod 83. When the height of the flat panel detector 4 is adjusted, the left ejector rod 82 and the right ejector rod 83 support the flat panel detector 4 to prevent the flat panel detector 4 from deflecting in angle during the height adjustment process and making itself not in a horizontal state. When the flat panel detector 4 rotates, regardless of the size of the deflection angle, the hemispherical structure 81 enables the ejector rod 8 to always contact the flat panel detector 4 and play a supporting role for the flat panel detector 4.

[0049] The micro motor 51 is fixedly installed on the column 1, and the micro motor 51 is fixedly connected to the worm 52; a worm gear 53 is provided on one side of the worm 52; the worm gear 53 is fixedly installed with the rotating shaft 54. The rotation of the micro motor 51 drives the synchronous rotation of the worm 52, the worm 52 drives the horizontal rotation of the worm gear 53, and the worm 52 further drives the synchronous rotation of the rotating shaft 54; the rotating shaft 54 is rotatably installed with the column 1, and the rotating shaft 54 is rotatably installed with the column 1 through a bearing. The lower end of the rotating shaft 54 extends into the driving cavity 61 of the support plate 6; one end of the crank 55 is connected to the rotating shaft 54, and the rotating shaft 54 includes a fixed shaft 541, a sliding shaft 542, and a tension spring 543; the fixed shaft 541 is fixedly connected to the worm gear 53 and is rotatably connected to the column 1; the sliding shaft 542 is slidably installed in the fixed shaft 541, and the sliding shaft 542 is connected to the inner wall of the fixed shaft 541 through the tension spring 543. The tension spring 543 enables the fixed shaft 541 and the sliding shaft 542 to form an integral body and can rotate synchronously. The lower end of the sliding shaft 542 is fixedly connected to the crank 55. The fixed shaft 541 is rotatably installed with the column 1 through a bearing, and the fixed shaft 541 is fixedly connected to the worm gear 53 and rotates synchronously with the worm gear 53, thereby driving the synchronous rotation of the sliding shaft 542. The sliding shaft 542 and the fixed shaft 541 can perform relative sliding. When the flat panel detector 4 adjusts its own height, the sliding shaft 542 will move synchronously with the flat panel detector 4 for stretching; the other end of the crank 55 is rotatably connected to the rocker 56; the rocker 56 is connected to the swing rod 57 through a limit post 58; the swing rod 57 is connected to the flat panel detector 4. The crank 55, the rocker 56, and the swing rod 57 form a three-link mechanism to drive the flat panel detector 4 to swing synchronously. The rotating shaft 54 rotates under the action of the worm gear 53, and then the rotating shaft 54 drives the crank 55 fixedly connected thereto to perform a circular motion. The crank 55 pulls the rocker 56 to swing, the rocker 56 drives the swing rod 57 to slide, and the swing rod 57 pulls the flat panel detector 4 to rotate relative to the bushing 3;

[0050] An arc-shaped sliding groove 62 is formed in the support plate 6. The limiting post 58 is located in the arc-shaped sliding groove 62. The arc-shaped sliding groove 62 restricts the sliding track of the limiting post 58, thereby restricting the swing of the swing rod 57, so that the swing rod 57 moves along a fixed track, improving the stability of the rotation of the flat panel detector 4. The inner wall of the arc-shaped sliding groove 62 is provided with friction lines 621. The thickness of the friction lines 621 at both ends of the arc-shaped sliding groove 62 is greater than that at the middle end. The friction lines 621 are used to enhance the friction force between the limiting post 58 and the arc-shaped sliding groove 62, thereby avoiding the shaking of the limiting post 58. At the same time, as the deflection angle of the flat panel detector 4 increases, the sliding distance of the limiting post 58 in the arc-shaped sliding groove 62 increases. The closer to the end point of the arc-shaped sliding groove 62, the greater the friction force received, and the greater the fixing force received by the limiting post 58, avoiding the phenomenon that as the deflection angle of the flat panel detector 4 increases, the acting force between the flat panel detector 4 and the human body increases, resulting in the shaking of the flat panel detector 4.

[0051] When the flat panel detector 4 needs to deflect to the left, the micro motor 51 drives the worm 52 to rotate forward. The worm 52 drives the worm wheel 53 to rotate synchronously. The worm wheel 53 drives the rotating shaft 54 to rotate counterclockwise. The rotating shaft 54 then drives the crank 55 to rotate synchronously. The crank 55 pushes the rocker 56 to swing. The rocker 56 pushes the swing rod 57 through the limiting post 58. The limiting post 58 maintains the stability of its own sliding under the action of the arc-shaped sliding groove 62, thereby ensuring the stability of the movement of the swing rod 57. The swing rod 57 exerts a rightward acting force on the flat panel detector 4, and the flat panel detector 4 deflects to the right. When the flat panel detector 4 needs to deflect to the left, the movement principle is the same as above.

[0052] The driving wheel 71 is located within the driving cavity 61 and is fixedly connected to the sliding shaft 542. The rotating shaft 54 rotates under the action of the worm gear 53, thereby driving the driving wheel 71 to rotate synchronously. The driving wheel 71 is respectively provided with a driving rack 72 and a transfer rack 73; the driving rack 72 and the transfer rack 73 are perpendicularly arranged; the driving rack 72 is fixedly connected to the left ejector rod 82. When the driving wheel 71 rotates, it drives the driving rack 72 to slide horizontally. The driving rack 72 drives the left ejector rod 82 to slide synchronously. At the same time, the driving wheel 71 drives the transfer rack 73 to slide horizontally; symmetrically arranged push plates 731 are provided at the middle end of the transmission rack 75; the push plates 731 are engaged with the limiting posts 58, and the push plates 731 cooperate with the arc-shaped sliding groove 62 to restrict the sliding trajectory of the limiting posts 58, thereby restricting the sliding trajectory of the swing rod 57 and ensuring the stability of the three-link movement, thus ensuring the stability of the deflection of the flat panel detector 4; a transmission wheel 74 is provided in front of the transfer rack 73; the transmission rack 75 is perpendicularly arranged with the transfer rack 73 and is engaged with the transmission wheel 74; the transmission rack 75 is connected to the right ejector rod 83. The transfer rack 73 slides horizontally to drive the transmission wheel 74 to rotate, and the transmission wheel 74 further drives the transmission rack 75 to slide. The transmission rack 75 drives the right ejector rod 83 to slide horizontally; the transmission ratio of the driving rack 72 to the driving wheel 71 is the same as the transmission ratio of the transmission rack 75 to the transmission wheel 74. The same transmission ratio makes the sliding distances of the left ejector rod 82 and the right ejector rod 83 the same, thereby ensuring that the supporting forces received by the flat panel detector 4 are the same and ensuring the stability of the deflection of the flat panel detector 4. The flat panel detector 4 deflects around the central plane of the driving motor 2, so that the deflection angles on both sides are the same and the deflection distances are the same. Therefore, it is necessary to ensure that the sliding distances of the left ejector rod 82 and the right ejector rod 83 are the same, and further ensure that the forces exerted by the left ejector rod 82 and the right ejector rod 83 on the flat panel detector 4 are the same, ensuring the balanced force on the flat panel detector 4.

[0053] When the worm gear 53 drives the rotating shaft 54 to rotate counterclockwise, the rotating shaft 54 drives the crank 55, the crank 55 drives the rocker 56, and the rocker 56 pushes the swing rod 57 to move to the right. The swing rod 57 further drives the flat panel detector 4 to deflect to the left. At the same time, the rotating shaft 54 drives the driving wheel 71 to rotate in the same direction; the driving wheel 71 drives the driving rack 72 to slide into the driving cavity 61, and the driving cavity 61 pulls the left ejector rod 82 to move in the same direction. At the same time, the driving wheel 71 drives the transfer rack 73 to slide horizontally to the right. During the process of the transfer rack 73 sliding to the right, the push plate 731 pushes the limiting post 58 to slide horizontally to the right, thereby promoting the displacement of the swing rod 57 and ensuring the correctness of the deflection of the flat panel detector 4. At the same time, the transfer rack 73 drives the transmission wheel 74 to rotate, and the transmission wheel 74 drives the transmission rack 75 to slide out of the driving cavity 61. The transmission rack 75 pushes the right ejector rod 83 to slide out to support the flat panel detector 4; when the worm gear 53 drives the rotating shaft 54 to rotate clockwise, the movement principle is the same as above.

[0054] When a medical image acquisition device of this embodiment is in use, medical staff adjust the height of the flat panel detector 4 according to the patient's height. The medical staff start the drive motor 2, and the rotation of the drive motor 2 drives the sleeve 3 to slide vertically downward. The sleeve 3 drives the flat panel detector 4 thereon to slide downward synchronously. At the same time, the sleeve 3 drives the support plate 6 and the components inside the support plate 6 to slide downward synchronously. During the sliding process, the drive wheel 71 inside the support plate 6 pulls the rotating shaft 54 to move synchronously, and the sliding shaft 542 in the rotating shaft 54 slides relative to the fixed shaft 541;

[0055] After the height adjustment is completed, the medical staff adjust the angle according to the area where the image data needs to be collected. The micro motor 51 is started, and the micro motor 51 drives the worm 52 to rotate. The worm 52 drives the worm wheel 53 to rotate. The worm wheel 53 drives the rotating shaft 54 to rotate synchronously. The rotating shaft 54 drives the crank 55 to rotate synchronously. The drive drives the rocker 56. The rocker 56 drives the swing rod 57 through the limit post 58. The swing rod 57 drives the flat panel detector 4 to rotate. At the same time, the rotating shaft 54 drives the drive wheel 71 to rotate in the same direction; The drive wheel 71 drives the active rack 72 to slide horizontally. The active rack 72 drives the left ejector rod 82 to move synchronously. At the same time, the drive wheel 71 drives the intermediate rack 73 to slide horizontally. The intermediate rack 73 drives the limit post 58 to move through the push plate 731, thereby promoting the rotation of the flat panel detector 4. The intermediate rack 73 slides and then drives the transmission wheel 74 to rotate. The transmission wheel 74 drives the transmission rack 75 to rotate. The transmission rack 75 drives the right ejector rod 83 to slide. The right ejector rod 83 slides in the opposite direction to the left ejector rod 82;

[0056] When the image data acquisition is completed, the micro motor 51 rotates in reverse to drive the worm 52 to rotate in reverse. The worm 52 drives the worm wheel 53 to rotate in reverse. The worm wheel 53 drives the rotating shaft 54 to rotate in reverse. The rotating shaft 54 drives the flat panel detector 4 to rotate in reverse and reset through the crank 55, rocker 56 and swing rod 57. At the same time, the rotating shaft 54 drives the drive wheel 71 to rotate in reverse. The drive wheel 71 drives the active rack 72 and the intermediate rack 73 to move in the opposite direction and reset. The active rack 72 drives the left ejector rod 82 to reset. The intermediate rack 73 drives the transmission wheel 74 to reset. The transmission wheel 74 drives the transmission rack 75 to reset. The transmission rack 75 drives the right ejector rod 83 to reset. Then start the drive motor 2, and the drive motor 2 rotates in reverse to drive the sleeve 3 to slide in the reverse direction and reset. The sleeve 3 drives the flat panel detector 4 and the support plate 6 to reset. The support plate 6 pushes the sliding shaft 542 to reset. The rotation shaft 54 is reset, and a working cycle ends.

[0057] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical image acquisition device, characterized in that: It comprises a column (1), a driving motor (2), a shaft sleeve (3), a flat-panel detector (4), an adjustment mechanism (5), a support plate (6), a fixing assembly (7) and a push rod (8); A drive motor (2) is fixedly mounted on the column (1), a thread is provided on the drive motor (2), and a shaft sleeve (3) is slidably mounted on the drive motor (2); The shaft sleeve (3) is provided with a screw groove, the shaft sleeve (3) and the flat-panel detector (4) are rotatably mounted, the shaft sleeve (3) is provided with an annular slide groove (31), and a positioning groove (311) is provided in the annular slide groove (31); the flat-panel detector (4) is provided with an annular slide block (41), and the annular slide block (41) is provided with a positioning protrusion (411); An adjustment mechanism (5) is provided above the shaft sleeve (3), and when the flat-panel detector (4) is collecting images, the adjustment mechanism (5) drives the flat-panel detector (4) to deflect; The regulating mechanism (5) comprises a micro-motor (51), a worm (52), a worm wheel (53), a rotating shaft (54), a crank (55), a rocker (56), a swing rod (57) and a limiting column (58); The micro-motor (51) is fixedly mounted on the column (1), and the micro-motor (51) is fixedly connected to the worm (52); A worm wheel (53) is provided on one side of the worm (52); the worm wheel (53) is fixedly mounted on the rotating shaft (54); The rotating shaft (54) is rotatably mounted on the column (1), and the lower end of the rotating shaft (54) extends into the driving cavity (61) of the support plate (6); One end of the crank (55) is connected to the rotating shaft (54), and the other end of the crank (55) is rotatably connected to the rocker (56); The rocker (56) and the swing rod (57) are connected via a limiting column (58); The swing rod (57) is connected to the flat panel detector (4); A support plate (6) is fixedly mounted on the shaft sleeve (3), an arc-shaped slide groove (62) is provided on the support plate (6), the limiting column (58) is located in the arc-shaped slide groove (62), a friction pattern (621) is provided on the inner wall of the arc-shaped slide groove (62), and the thickness of the friction pattern (621) at both ends of the arc-shaped slide groove (62) is greater than that at the middle end; The support plate (6) is provided with a driving cavity (61), a fixing assembly (7) is installed in the driving cavity (61), the push rod (8) is located in the driving cavity (61), when the flat panel detector (4) is deflected, the adjustment mechanism (5) drives the push rod (8) to slide horizontally through the fixing assembly (7), the top end of the push rod (8) is a hemispherical structure (81), and the push rod (8) is divided into a left push rod (82) and a right push rod (83).

2. The medical image acquisition device according to claim 1, characterized in that: The rotating shaft (54) comprises a fixed shaft (541), a sliding shaft (542) and a tension spring (543); The fixed shaft (541) is fixedly connected to the worm gear (53), and the fixed shaft (541) is rotationally connected to the column (1); The sliding shaft (542) is slidably mounted inside the fixed shaft (541); the sliding shaft (542) and the inner wall of the fixed shaft (541) are connected via a tension spring (543); and a crank (55) is fixedly connected to the lower end of the sliding shaft (542).

3. The medical image acquisition device according to claim 1, characterized in that: The fixed assembly (7) comprises a driving wheel (71), an active rack (72), a transfer rack (73), a transmission wheel (74) and a transmission rack (75); The driving wheel (71) is located in the driving cavity (61) and is fixedly connected to the sliding shaft (542). The driving wheel (71) is provided with an active rack (72) and a transfer rack (73). The active rack (72) and the transfer rack (73) are arranged vertically; The active rack (72) is fixedly connected to the left top rod (82); A transmission wheel (74) is provided in front of the transfer rack (73); The transmission rack (75) is arranged vertically with the transfer rack (73) and meshes with the transmission wheel (74); the transmission rack (75) is connected to the right push rod (83).

4. The medical image acquisition device according to claim 3, characterized in that: The transmission ratio between the active rack (72) and the driving wheel (71) is consistent with the transmission ratio between the transmission rack (75) and the transmission wheel (74).

5. The medical image acquisition device according to claim 4, characterized in that: A push plate (731) is symmetrically provided at the middle end of the transmission rack (75); the push plate (731) is engaged with the limiting column (58).

Images