Medical image comparison equipment and working method thereof

Abstract

The invention relates to the field of medical image diagnosis equipment, in particular to medical image comparison equipment and a working method thereof, and the equipment comprises a shell, a light-transmitting plate, a guide plate, a transmission mechanism and a cleaning device. In the working process, when one swing arm swings to the position between the guide plates through swinging of the swing arms of the two transmission mechanisms, the two light-transmitting plates connected with the swing arm are automatically opened to be parallel, and therefore diagnosis images placed on the two light-transmitting plates can be visually compared; meanwhile, the other swing arm swings to the side edge of the guide plate, the two light-transmitting plates connected with the swing arm are automatically closed and located below a cleaning roller of the cleaning device, and the cleaning roller can descend into a gap between the two closed light-transmitting plates to clean the light-transmitting surfaces of the two light-transmitting plates at the same time. Therefore, the cleaning state and the use state of the light-transmitting plate in the medical image diagnosis equipment can be synchronously carried out, so that the continuous requirements of high-intensity use scenes such as emergency treatment and operating rooms are met.

Description

Technical Field

[0001] The present invention relates to the field of medical imaging diagnostic devices, and particularly to a medical imaging contrast device and its working method. Background Art

[0002] Medical imaging diagnostic devices play a crucial role in clinical practice. In particular, the viewbox, as a basic tool, directly affects the accuracy of doctors' interpretation of image details such as X-ray films and CT films. And with the development of precision medicine, the clinical requirements for the functional integration of imaging devices are higher. The prior art has tried to achieve double-film contrast by adding auxiliary brackets or rotatable structures. For example, a medical diagnostic imaging contrast device disclosed in the patent application No. 202211051497.0, and an imaging diagnostic contrast device disclosed in the patent application No. 201921932424.6.

[0003] However, taking the above-mentioned prior art as an example, the currently available devices with the function of medical diagnostic imaging contrast have a spatio-temporal conflict between the cleaning of the light-transmitting plate and the usage state. During the cleaning cycle, the device is in an unavailable state, making it difficult to meet the continuous needs of high-intensity usage scenarios such as emergency departments and operating rooms. Summary of the Invention

[0004] In view of the deficiencies in the above-mentioned background art, the present invention provides a medical imaging contrast device and its working method.

[0005] The present invention adopts the following technical solutions: In a first aspect, the present invention discloses a medical imaging contrast device, which includes: A contrast component, the contrast component has two mutually hinged light-transmitting plates. The front surface of the light-transmitting plate is a light-transmitting surface, and card slots are provided on both sides of the front surface of the light-transmitting plate. The bottom surface of the card slot is closed, and both sides of the diagnostic image are inserted into the two card slots from top to bottom and are located on the bottom surface at the lower end of the card slot; A guide plate, the middle of the guide plate has an arc-shaped groove, and the contrast components are provided on both sides of the guide plate; A transmission mechanism, both contrast components are connected to a transmission mechanism. The transmission mechanism includes a swing arm, a sliding member, and a tension arm. One end of the swing arm is rotatably connected to the middle of the guide plate, and the axis line of the hinge connection of the two light-transmitting plates of the contrast component is located at the other end of the swing arm. And a tension arm is hinged to the back surface of each of the two light-transmitting plates of the contrast component. One end of the two tension arms away from the light-transmitting plate is pivotally connected to the upper end of the sliding member. A guide pin is fixed to the lower end of the sliding member, and the guide pin is adapted to pass through the arc-shaped groove. The sliding member is restricted to slide linearly relative to the two ends of the swing arm; The housing, each of the light-transmitting plates is disposed on one side of the front surface of the housing, and the guide plate and the transmission mechanism are both disposed inside the housing; The cleaning device, the cleaning devices are disposed on both sides inside the housing, and the cleaning device includes a cleaning roller, a connecting shaft, a transmission belt, a first counterweight, and a cleaning motor. The connecting shaft is rotatably fixed axially above one side of the guide plate. The cleaning motor drives the connecting shaft to rotate. The transmission belt bypasses the connecting shaft, and one end of the transmission belt is connected to the first counterweight, and the other end of the transmission belt is connected to the cleaning roller; Wherein, the swing arms of the two transmission mechanisms rotate relative to each other by 90°. When one of the swing arms swings to one side of the guide plate, the guide pin of the sliding member moves along the arc-shaped groove to drive the sliding member towards the end connecting the light-transmitting plate, so as to drive the two tension arms to swing towards the middle of the swing arm to drive the two light-transmitting plates to swing to close, and the gap formed between the card slots of the two light-transmitting plates corresponds to under the cleaning roller.

[0006] In a possible implementation manner of the first aspect, the guide plate is fixed below a support arm, a fixed shaft is provided on the support arm, and one ends of the swing arms of the two transmission mechanisms are both connected to the fixed shaft and swing relative to the guide plate.

[0007] In a possible implementation manner of the first aspect, sliders that linearly slide relative to the guide plate are provided on both sides of the support arm, and the two sliders slide relative to the guide plate alternately; the sliders are both pivotally connected to a first link, and the end of the first link away from the slider is pivotally connected to the side of the swing arm.

[0008] In a possible implementation manner of the first aspect, a driving motor is fixed at the position of the support arm inside the housing, an output end of the driving motor is fixed to a driving shaft, and driving rods are fixed at both ends of the driving shaft. The two driving rods are respectively located on both sides of the axis line of the driving shaft, and the two driving rods are arranged in parallel; both ends of the driving shaft are respectively located on both sides of the support arm. In any one side of the support arm, the end of the driving rod is pivotally connected to a second link, and the end of the second link away from the driving rod is pivotally connected to the first link.

[0009] In a possible implementation manner of the first aspect, the device further includes a housing, a protective cover is disposed above the front surface of the housing, the light-transmitting plate is located on the front surface of the housing, and the cleaning roller is located inside the protective cover when it does not descend.

[0010] In a possible implementation manner of the first aspect, a limiting frame is fixed inside the protective cover, the limiting frame corresponds to above the position after the two light-transmitting plates are combined, and the cleaning roller is embedded in the limiting frame when it does not descend.

[0011] In a possible implementation of the first aspect, guide pins are fixed on both sides of the position where the first counterweight is internally disposed in the housing. Vertical through guide holes are provided at both ends of the first counterweight, and the two guide pins are adapted to pass through the two guide holes.

[0012] In a possible implementation of the first aspect, the cleaning device is configured with two transmission belts. The same ends of the two transmission belts are respectively connected to both sides of the cleaning roller, and the same other ends of the two transmission belts are respectively connected to both sides of the first counterweight.

[0013] In a possible implementation of the first aspect, the cleaning roller is rotatably disposed under a connection frame. A second counterweight is fixed on the connection frame, and the end of the transmission belt is fixed to the connection frame.

[0014] In a second aspect, the present invention also discloses a working method of the above device, and the method is as follows: When viewing diagnostic images, place the two diagnostic images to be compared on the two light-transmitting plates in the comparison component on the front of the guide plate respectively, and turn on the light source of the light-transmitting plates so that the two diagnostic images can be intuitively displayed. After viewing, remove the diagnostic images, and then control the swing arms of the two transmission mechanisms to swing, so that the swing arm currently located in the middle of the front of the guide plate swings to the side of the guide plate, and at the same time, the swing arm located on the side of the guide plate swings to the middle of the front of the guide plate, so that the two light-transmitting plates connected to the swing arm swung to the side of the guide plate are closed for easy cleaning, and at the same time, the two light-transmitting plates connected to the swing arm swung to the middle of the front of the guide plate are opened to facilitate placing the diagnostic images again. When cleaning the two light-transmitting plates closed on the side of the guide plate, lower the cleaning roller above the light-transmitting plates into the gap between the closed two light-transmitting plates, so that the cleaning roller cleans the light-transmitting surfaces of the two light-transmitting plates in real time during the descending process.

[0015] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: When one of the swing arms of the two transmission mechanisms swings to the middle of the guide plate, the two light-transmitting plates of the comparison component connected to the swing arm can be automatically opened to be parallel, so as to intuitively compare the diagnostic images placed on the two light-transmitting plates. At the same time, the other swing arm swings to the side of the guide plate, and the two light-transmitting plates of the comparison component connected to the swing arm are automatically closed and located under the cleaning roller of the cleaning device, so that the cleaning roller can directly descend into the gap between the two closed light-transmitting plates to clean the light-transmitting surfaces of the two light-transmitting plates at the same time, so as to facilitate subsequent reuse. It can be seen that the invention enables the light-transmitting plates of one comparison component to be cleaned while the light-transmitting plates of the other comparison component are in use, realizing the synchronization of the cleaning and use states of the light-transmitting plates in the medical imaging diagnosis device, saving the doctor's cleaning time, and thus meeting the continuous requirements of high-intensity use scenarios such as emergency departments and operating rooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a perspective structural view of the device of the present invention.

[0017] Figure 2 is Figure 1 an enlarged view of part A in FIG.

[0018] Figure 3 is Figure 1 a cross-sectional view taken along the line B-B in FIG.

[0019] Figure 4 is Figure 3 an enlarged view of part C in FIG.

[0020] Figure 5 FIG. is a schematic view of the device of the present invention with the outer shell hidden.

[0021] Figure 6 FIG. is a schematic structural view of two comparison components connected to a guide plate and a support arm through a transmission mechanism.

[0022] Figure 7 is Figure 6 an enlarged view of part D in FIG.

[0023] Figure 8 FIG. is a schematic view of the transmission mechanism connected to the guide plate and the support arm.

[0024] Figure 9 FIG. is a schematic view of a tension arm connecting a hinge and a sliding member.

[0025] Figure 10 FIG. is a perspective structural view of the cleaning device. DETAILED DESCRIPTION OF THE INVENTION

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings.

[0027] Hereinafter, terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] In addition, in this application, orientation terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification and can change accordingly with the change of the orientation of the components placed in the accompanying drawings.

[0029] The invention provides a medical imaging contrast device. As shown in the attached drawings Figure 1 、 3 and 5, the device includes a housing 1, a contrast component, a guide plate 3, a transmission mechanism, and a cleaning device 5. Among them, the contrast component has two mutually hinged light-transmitting plates 2, and each light-transmitting plate 2 is arranged on the front side of the housing 1. The guide plate 3, the transmission mechanism, and the cleaning device 5 are all arranged inside the housing 1, and the housing 1 can be used to hang on the wall or be supported on the ground by a bracket.

[0030] Referring again to the attached drawings Figure 5 , the light-transmitting plate 2 is a viewbox with a light-transmitting surface on one side, and a light source is arranged inside the light-transmitting plate 2 to evenly illuminate the light-transmitting surface. C-shaped card slots 201 are arranged on both sides of the front surface of the light-transmitting plate 2, and the bottom surface of the card slot 201 is closed. During operation, both sides of the diagnostic imaging medium are inserted into the two card slots 201 from top to bottom respectively, and the bottom of the diagnostic image is blocked by the bottom surface at the lower end of the card slot 201, so that the diagnostic image is vertically placed and attached to the light-transmitting surface of the light-transmitting plate 2. The high-intensity uniform light emitted through the light-transmitting surface penetrates the imaging medium, and can clearly present diagnostic detail features including microvascular lesions, tissue calcification foci, and microscopic anatomical structures, which is particularly suitable for the refined film reading requirements of medical images such as X-ray films and CT films.

[0031] As shown in the attached drawings Figure 6 and 7As shown, the guide plate 3 is fixedly connected inside the housing 1 through the connection of the support arm 31, that is, one end of the support arm 31 is fixed inside the housing 1, and the other end of the support arm 31 is located outside the housing 1 to fix the guide plate 3. An arc-shaped groove 301 is provided in the middle of the guide plate 3, and a comparison component is arranged on both sides of the guide plate 3 (that is, both sides of the front of the housing 1). The two light-transmitting plates 2 of the two comparison components are respectively used to place two diagnostic images. When the two light-transmitting plates 2 of the comparison component are unfolded to be aligned and parallel, a complete observation plane can be formed, which is convenient for directly comparing the two diagnostic images, and is especially suitable for clinical scenarios such as orthopedic implant position verification and tumor lesion evolution analysis that require high-precision image comparison.

[0032] Both of the two comparison components are connected to a transmission mechanism. Referring to the attached Figure 8 and 9 The transmission mechanism includes a swing arm 41, a sliding member 42, and a tension arm 43. One end of the swing arm 41 is connected to rotate in the middle of the guide plate 3. Specifically, a fixed shaft 33 is fixedly connected to the support arm 31. One end of the swing arm 41 of the two transmission mechanisms is superposed and sleeved on the fixed shaft 33 to rotate relative to the fixed shaft 33, forming a structure in which the swing arm 41 rotates relative to the middle position of the guide plate 3. The axis of the hinge of the two light-transmitting plates 2 in the comparison component is located at the other end of the swing arm 41. Specifically, a hinge 21 is fixed to the back of the light-transmitting plate 2, and a connecting pin 411 is fixedly connected to the end of the swing arm 41. The hinges 21 of the two light-transmitting plates 2 are both sleeved on the connecting pin 411 and flip relative to the swing arm 41, so that the two light-transmitting plates 2 of the comparison component form a synchronous opening and closing kinematic pair at the end of the swing arm 41, that is, the two light-transmitting plates 2 can be flipped relative to each other to the open and closed states, and the axis of the connecting pin 411 is the axis of the hinge of the light-transmitting plate 2.

[0033] Preferably, the conductive wires of the internal light source of the light-transmitting plate 2 adopt a concealed wiring scheme, and the wiring path linearly extends along the side edges of the tension arm 43 and the swing arm 41. That is, after the conductive wires are led out from the pivot gap of the hinge 21, they pass through the side of the tension arm 43 and the side of the swing arm 41 and finally converge into the internal power supply module of the housing. Further, wire grooves can be fixed to the side edges of the tension arm 43 and the swing arm 41 to limit the conductive wires connected to the light-transmitting plate 2. The above wiring scheme realizes full-course wire shielding through the engineering plastic wire grooves fixed to the side edges of the tension arm 43 and the swing arm 41, which not only meets the electrical safety specifications but also maintains the industrial design integrity of the appearance of the device.

[0034] The swing arm 41 is provided with a strip-shaped hole 401 along its length direction. The sliding member 42 adopts a three-stage integrated structure, which integrally forms a pivot pin 421, a sliding portion 422 and a guide pin 423 from top to bottom in sequence. The sliding portion 422 is fitted into the strip-shaped hole 401 with a clearance fit, so that the sliding member 42 generates a defined linear displacement along the length direction of the swing arm 41, that is, the sliding member 42 is restricted to linearly slide only along the strip-shaped hole 401 relative to both ends of the swing arm 41. In the comparison assembly, hinge joints 21 on the back of the two light-transmitting plates 2 are respectively hinged to a tension arm 43. One end of the two tension arms 43 away from the light-transmitting plates 2 is pivotally connected to the upper end of the sliding member 42. When the sliding member 42 slides relative to the strip-shaped hole 401, it can drive the two tension arms 43 to swing mirror-symmetrically, thereby driving the two light-transmitting plates 2 to flip, realizing the mirror-symmetric opening and closing states. The guide pin 423 is adapted to pass through the arc-shaped groove 301 to form a curved surface pair fit.

[0035] When the swing arm 41 rotates, since the guide pin 423 passes through the arc-shaped groove 301, it will drive the sliding member 42 to move relative to the arc-shaped groove 301 while making the sliding member 42 move relative to both ends of the swing arm 41 during the rotation process. As shown in the attached Figure 5 and 6 , when the swing arm 41 swings to one side of the guide plate 3, the guide pin 423 of the sliding member 42 moves along the arc-shaped groove 301 to drive the sliding member 42 to slide towards the end of the swing arm 41 connected to the light-transmitting plate 2, so as to drive the two tension arms 43 to swing towards the middle of the swing arm 41 and drive the two light-transmitting plates 2 to flip to form a closed state; when the swing arm 41 swings to the middle of the guide plate 3, the sliding member 42 slides towards the end of the swing arm 41 connected to the fixed shaft 33 to pull the tension arm 43 to drive the two light-transmitting plates 2 to flip to form an open state.

[0036] Referring to the attached Figure 7 and 8 again, slide rails 311 are rigidly connected to both sides of the support arm 31. The slide rails 311 and the sliders 312 form a linear sliding pair, so that the sliders 312 perform a linear displacement relative to the guide plate 3 along the slide rails 311. Both sliders 312 are pivotally connected to a first connecting rod 45. One end of the first connecting rod 45 away from the slider 312 is pivotally connected to the side of the swing arm 41. In this structure, when the slider 312 slides along the slide rail 311 towards the outside of the housing 1, it can cause the first connecting rod 45 to generate a thrust to drive the swing arm 41 to deflect towards the middle of the guide plate 3; when the slider 312 moves towards the inside of the housing 1, the first connecting rod 45 generates a pulling force to drive the swing arm 41 to deflect towards the side of the guide plate 3.

[0037] When the two sliders 312 slide relative to the guide plate 3 alternately, the two transmission mechanisms can be kept in a symmetric motion mode with a phase difference of 90°. That is, when one of the sliders 312 slides outward, the corresponding first link 45 pushes the swing arm 41 to carry the two light-transmitting plates 2 of the comparison component to rotate to the front of the housing 1 and complete the unfolding action; at the same time, the other slider 312 slides inward synchronously, and through the pulling of the first link 45, the two light-transmitting plates 2 of the comparison component carried by the corresponding swing arm 41 are deflected to the side storage position of the housing 1 and kept in a closed state. This linkage mechanism realizes the automatic phase switching of the light-transmitting plates 2 of the two comparison components between the unfolded / stored states through the precise cooperation of the slide rail 311 and the slider 312, ensuring that the light-transmitting plates 2 in the device working interface always maintain a clean observation area.

[0038] Further, a driving motor 46 is also fixed at the position of the support arm 31 inside the housing 1. The driving motor 46 can be a central shaft motor. The output end of the driving motor 46 is fixed with a driving shaft. Eccentric driving rods 461 with a phase difference of 180° are fixed at both ends of the driving shaft. That is, the two driving rods 461 are respectively located on both sides of the axis line of the driving shaft, and the two driving rods 461 are arranged in parallel. Both ends of the driving shaft are respectively located on both sides of the support arm 31. In any one side of the support arm 31, the end of the driving rod 461 is pivotally connected to a second link 462. The end of the second link 462 away from the driving rod 461 is pivotally connected to the first link 45 to form a power transmission chain. When the driving motor 46 drives the driving shaft to rotate, the driving rods 461 at both ends of the driving shaft rotate accordingly. The rotational motion is converted into a linear pushing and pulling force through the second link 462. When the left driving rod 461 rotates to the outer dead center, the second link 462 pushes the corresponding slider 312 to slide outward along the slide rail 311 towards the outside of the housing 1; at the same time, the right driving rod 461 is at the inner dead center, and the right slider 312 is pulled to retract inward along the slide rail 311 through the second link 462. The above-mentioned moving mode of the reciprocating motion of the two sliders 312 on both sides is realized by the 180° phase difference setting of the two driving rods 461, accurately reproducing the automatic switching action of the light-transmitting plates 2 of the two comparison components between the unfolded and stored states.

[0039] As shown in the Figure 5 attachment, cleaning devices 5 are provided on both sides of the housing 1 at the positions where the light-transmitting plates 2 of the comparison component move to after closing. Referring to the Figure 10 attachment again, the cleaning device 5 includes a cleaning roller 51, a connecting shaft 52, a transmission belt 532, a first counterweight 54, and a cleaning motor 55. Among them, a protective cover 11 is provided above the front of the housing 1. The protective cover 11 on the top of the housing 1 adopts a bottom-open cavity design. The cleaning rollers 51 of the two cleaning devices 5 are respectively on both sides inside the protective cover 11. Referring to the Figure 10, the cleaning device 5 further includes a connecting frame 56. The cleaning roller 51 is assembled to the lower part of the connecting frame 56 through precision bearings. A second counterweight 561 is rigidly connected to the middle of the connecting frame 56. The widths of the connecting frame 56 and the second counterweight 561 are smaller than the diameter of the effective cleaning surface of the cleaning roller 51. A dynamic gravity compensation mechanism is formed through the mass ratio of the second counterweight 561. That is, when the light-transmitting plate 2 is in the closed state, the gravity generated by the second counterweight 561 causes the connecting frame 56 to carry the cleaning roller 51 to move smoothly downward along the vertical track, ensuring that the cleaning surface of the cleaning roller 51 contacts the light-transmitting plate 2.

[0040] Preferably, the cleaning roller 51 can be an electrostatic roller. Conductive slip rings are fixed on both sides of the connecting frame 56. The rotating shafts at both ends of the cleaning roller 51 are respectively fixed to the rotor ends of the two conductive slip rings. After the stator ends of the two conductive slip rings are fixed to the connecting frame 56, the stator ends of the conductive slip rings are connected to a power source to charge the cleaning roller 51, so that the cleaning roller 51 can electrostatically adsorb dust particles attached to the surface of the light-transmitting plate 2. The stator ends of the conductive slip rings can be connected to the power source through conducting wires, specifically connected to the output end of the circuit for conducting electricity integrated on the circuit board disposed in the housing 1. Further, a wire wheel can be provided on the connecting shaft 52. One end of the conducting wire bypasses the wire wheel and is connected to the conductive slip ring, and the other end of the conducting wire is connected to the power source.

[0041] Preferably, the cleaning roller 51 is an electrostatic roller body made of a composite conductive material. Both ends of the cleaning roller 51 form a dynamic electrical connection with the rotor ends of the conductive slip rings on both sides of the connecting frame 56 through precision bearings. The connecting frame 56 adopts an insulating and enhanced frame structure. The stator ends of the conductive slip rings on both sides thereof are both conducted to the DC high-voltage output end of the circuit board built in the housing 1 through electromagnetic interference shielding cables to form a closed-loop power supply circuit. The conductive slip ring assembly adopts a gold-nickel alloy contact design to ensure that the cleaning roller 51 continuously obtains an electrostatic voltage in the rotating state, so that a strong electrostatic field is formed on the roller surface (i.e., the cleaning surface) of the cleaning roller to adsorb sub-micron dust on the surface of the light-transmitting plate 2. Further, a wire wheel (not shown in the drawing) is integrally formed on the surface of the connecting shaft 52. After one end of the conducting wire is led out from the circuit board, it is wound circumferentially around the wire wheel to form a redundant routing path, and finally connected to the input terminal of the stator end of the conductive slip ring. This wiring method realizes the stress release of the conducting wire through the radial limiting groove of the wire wheel, which not only ensures the conductive stability but also avoids the chaotic entanglement of the lines.

[0042] The connecting shaft 52 is arranged above one side of the guide plate 3. Specifically, four reinforced connecting beams 12 are fixed above the guide plate 3 inside the housing 1. Bearing seats are fixed to two connecting beams 12 on the same side inside the housing 1. Both ends of the connecting shaft 52 are press-fitted into the inner rings of the two bearing seats by an interference fit method to limit the connecting shaft 52 to rotate axially fixed only above the housing 1. The cleaning motor 55 is fixed inside the housing 1 to drive the connecting shaft 52 to rotate.

[0043] A driving wheel 531 is fixed on the connecting shaft 52. The transmission belt 532 bypasses the driving wheel 531 and meshes with the driving wheel 531. Preferably, the transmission belt 532 can be a chain, and the driving wheel 531 can be a sprocket, or the transmission belt 532 can be a timing belt, and the driving wheel 531 can be a timing pulley. One end of the transmission belt 532 is also connected to a first counterweight 54 located inside the housing 1, and the other end of the transmission belt 532 is connected to the connecting frame 56 to which the cleaning roller 51 is connected. When the cleaning motor 55 executes a forward rotation (i.e., rotates in the direction outside the housing 1 and downward) instruction, the driving wheel 531 drives the transmission belt 532 to extend in the vertical direction. At this time, the cleaning roller 51 smoothly descends to the gap between the two closed light-transmitting plates 2 under the gravity compensation of the second counterweight 561, and the double-sided cleaning operation is synchronously executed; during the reverse rotation process, the transmission belt 532 is retracted and lifted by the driving wheel 531 to lift the cleaning roller 51 into the protective cover 11. At the same time, the first counterweight 54 relies on the constant force generated by its own weight sliding down to achieve real-time compensation of the tension of the transmission belt 532.

[0044] Furthermore, guide pins 423 are fixed on both sides of the position where the first counterweight 54 is arranged inside the housing 1. Vertical through holes are provided at both ends of the first counterweight 54, and the two guide pins 423 are adapted to pass through the two guide holes, thereby forming a restriction on the first counterweight 54 to ensure that the counterweight block always maintains a horizontal posture during the lifting process, effectively eliminating the movement eccentric load of the transmission system, and realizing the dynamic tension balance of the transmission belt 532 under different working conditions.

[0045] Preferably, the cleaning device 5 can be configured with two transmission belts 532 to form a parallel traction structure. The same ends of the two transmission belts 532 are connected to both sides of the connecting frame 56, and the same other ends of the two transmission belts 532 are connected to both sides of the first counterweight 54. The connection of the two transmission belts 532 forms a spatially stable structure through four-point constraints. When the cleaning motor 55 drives the driving wheel 531 to rotate, the two transmission belts 532 form completely synchronous displacement amounts in the vertical plane, effectively restricting the six degrees of freedom of the connecting frame 56 during the lifting process and eliminating the phenomenon of roller deflection caused by unilateral force.

[0046] In addition, limiting frames 57 are fixedly arranged on both sides inside the protective cover 11, corresponding to the positions above the merged positions of the two light-transmitting plates 2. The bottom edges of the limiting frames 57 are processed with guiding inclined surfaces that expand outward at an angle of 45°, and the guiding inclined surfaces and both sides of the cleaning roller 51 form a geometric guiding mechanism. When the cleaning roller 51 is driven to rise to the storage position in the protective cover 11, the roller arc surface of the cleaning roller 51 slides into the limiting frame 57 along the guiding inclined surface, and the axial alignment of the center line of the cleaning roller 51 and the gap between the closed light-transmitting plates 2 is achieved through three-point contact restraint, so that the cleaning roller 51 can be kept corresponding to the gap between the two closed light-transmitting plates 2. Even when the swing arm 41 swings to the side to drive the light-transmitting plates 2 to close, the gap formed between the card slots 201 of the two light-transmitting plates 2 is corresponding to the cleaning roller 51, thereby ensuring the accurate positioning of subsequent cleaning operations.

[0047] Furthermore, a high-conductivity copper alloy base is embedded in the top surface of the limiting frame 57, and hemispherical elastic electrode contacts are arrayed on its surface; a magnetic adsorption positioning type energy storage module is integrated at the top of the connection frame 56, and a gradient impedance contact piece is correspondingly arranged at the bottom. When the cleaning roller 51 completes the rising action and is clamped into the limiting frame 57, the energy storage module forms a multi-path parallel circuit with the electrode contacts under the guidance of magnetic force, and constant current charging is realized through the pressure feedback adjustment of the contact piece. This design breaks through the traditional wire bondage and realizes the self-maintenance power supply of the energy storage unit by using the movement cycle of the device, avoiding the trouble of setting up conductive wires.

[0048] The present invention also discloses a working method of the above device, and the method is as follows: When viewing diagnostic images, the two diagnostic images to be compared are respectively placed on the two light-transmitting plates 2 on the front of the housing 1, and the light source on the light-transmitting surface is turned on so that the two diagnostic images can be intuitively displayed; After viewing, the diagnostic images are removed, and then the driving motor 46 is controlled to drive the swing arms 41 of the two transmission mechanisms to swing, so that the swing arm 41 currently located in the middle of the front of the guide plate 3 swings to the side of the guide plate 3, and at the same time, the swing arm 41 located on the side of the guide plate 3 swings to the middle of the front of the guide plate 3, so that the two light-transmitting plates 2 connected to the swing arm 41 that swings to the side of the guide plate 3 are closed, facilitating subsequent cleaning, and at the same time, the two light-transmitting plates 2 connected to the swing arm 41 that swings to the middle of the front of the guide plate 3 are opened, facilitating viewing diagnostic images again; When cleaning the two closed light-transmitting plates 2 located on the side of the guide plate 3, the cleaning roller 51 above the light-transmitting plates 2 is lowered into the gap between the two closed light-transmitting plates 2, so that the cleaning roller 51 cleans the light-transmitting surfaces of the two light-transmitting plates 2 in real time during the descending process, facilitating the use when the light-transmitting plates 2 are moved to the middle of the guide plate 3 and opened again.

[0049] In summary, through the swinging of the swing arms 41 of the two transmission mechanisms in the present invention, when one of the swing arms 41 swings to the middle of the guide plate 3, the two light-transmitting plates 2 in the comparison assembly connected to the swing arm 41 automatically open to be parallel, so as to visually compare the diagnostic images placed on the two light-transmitting plates 2; at the same time, the other swing arm 41 swings to the side of the guide plate 3, and the two light-transmitting plates 2 in the comparison assembly connected to the swing arm 41 automatically close and are located under the cleaning roller 51 of the cleaning device, so that the cleaning roller 51 can directly descend into the gap between the two closed light-transmitting plates 2, thereby realizing the simultaneous cleaning of the light-transmitting surfaces of the two light-transmitting plates 2, so as to facilitate the subsequent viewing of the diagnostic images again. Thus, it can be seen that in the present invention, when the light-transmitting plate 2 of one comparison assembly is in use, the light-transmitting plates 2 of the other comparison assembly are cleaned, and then the light-transmitting plates 2 of the used comparison assembly are moved to the side of the guide plate 3 for cleaning, while the light-transmitting plates 2 of the cleaned comparison assembly are moved to the front of the guide plate 3 for reuse. Such a cycle can always keep a set of light-transmitting plates 2 having a clean light-transmitting surface for use, saving the doctor's cleaning time, thereby meeting the continuous requirements of high-intensity use scenarios such as emergency departments and operating rooms.

[0050] The above is only the specific implementation manner of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modification of the present invention using this concept shall fall within the scope of infringement of the protection of the present invention.

Claims

1. A medical imaging contrast device, characterized in that, The device includes: a comparison component, which has two light-transmitting plates hinged to each other. The front of the light-transmitting plate is a light-transmitting surface, and clamping grooves are provided on both sides of the front of the light-transmitting plate. The bottom surface of the clamping groove is closed, and both sides of the diagnostic image are respectively inserted into the two clamping grooves from top to bottom and are located on the bottom surface at the lower end of the clamping groove; a guiding plate, which has an arc-shaped groove in the middle, and the comparison components are provided on both sides of the guiding plate; a transmission mechanism, both of the comparison components are connected to a transmission mechanism. The transmission mechanism includes a swing arm, a sliding member and a tension arm. One end of the swing arm is rotatably connected to the middle of the guiding plate, and the axis line where the two light-transmitting plates of the comparison component are hinged is located at the other end of the swing arm. And a tension arm is hinged to the back of each of the two light-transmitting plates of the comparison component. One ends of the two tension arms away from the light-transmitting plates and the upper end of the sliding member are pivotally connected. A guiding pin is fixed to the lower end of the sliding member, and the guiding pin is adapted to pass through the arc-shaped groove, and the sliding member is restricted to slide linearly relative to both ends of the swing arm; a housing, each light-transmitting plate is provided on one side of the front of the housing, and the guiding plate and the transmission mechanism are both arranged inside the housing; a cleaning device, the cleaning devices are provided on both sides inside the housing. The cleaning device includes a cleaning roller, a connecting shaft, a transmission belt, a first counterweight and a cleaning motor. The connecting shaft is rotatably fixed axially above one side of the guiding plate, the cleaning motor drives the connecting shaft to rotate, the transmission belt bypasses the connecting shaft, and one end of the transmission belt is connected to the first counterweight, and the other end of the transmission belt is connected to the cleaning roller; Wherein, the swing arms of the two transmission mechanisms rotate relative to each other by 90°. When one of the swing arms swings to one side edge of the guiding plate, the guiding pin of the sliding member moves along the arc-shaped groove to drive the sliding member towards the end connecting the light-transmitting plates, so as to drive the two tension arms to swing towards the middle of the swing arm to drive the two light-transmitting plates to swing to be closed, and the gap formed between the clamping grooves of the two light-transmitting plates corresponds to under the cleaning roller.

2. The device according to claim 1, characterized in that, The guiding plate is fixed to the lower part of a support arm, and a fixed shaft is provided on the support arm. One end of the swing arm of each of the two transmission mechanisms is connected to the fixed shaft and swings relative to the guiding plate.

3. The device according to claim 2, characterized in that, Sliders that slide linearly relative to the guiding plate are provided on both sides of the support arm, and the two sliders slide relative to the guiding plate alternately; the sliders are pivotally connected to a first connecting rod, and one end of the first connecting rod away from the slider is pivotally connected to the side of the swing arm.

4. The device according to claim 3, characterized in that, The support arm fixes a driving motor at its position within the housing. The output end of the driving motor fixes a driving shaft, and both ends of the driving shaft fix driving rods. The two driving rods are respectively located on both sides of the axis line of the driving shaft, and the two driving rods are arranged in parallel; both ends of the driving shaft are respectively located on both sides of the support arm. In any one side of the support arm, the end of the driving rod is pivotally connected to a second connecting rod, and one end of the second connecting rod away from the driving rod is pivotally connected to the first connecting rod.

5. The device according to any one of claims 1 to 4, characterized in that, The device further includes a housing, a protective cover is arranged above the front surface of the housing, the light-transmitting plate is located on the front surface of the housing, and when the cleaning roller is not lowered, it is located within the protective cover.

6. The device according to claim 5, characterized in that, Guide pins are fixed on both sides of the position where the first counterweight is arranged within the housing. Vertical through guide holes are arranged at both ends of the first counterweight, and the two guide pins are fitted to pass through the two guide holes.

7. The device according to claim 5, characterized in that, A limiting frame is fixed within the protective cover, and the limiting frame corresponds to the position above the merged position of the two light-transmitting plates. When the cleaning roller is not lowered, it is embedded within the limiting frame.

8. The device according to claim 1, wherein, The cleaning device is configured with two transmission belts. The same ends of the two transmission belts are respectively connected to both sides of the cleaning roller, and the same other ends of the two transmission belts are respectively connected to both sides of the first counterweight.

9. The device according to claim 1 or 8, characterized in that, The cleaning roller is arranged to rotate under a connecting frame, a second counterweight is fixed on the connecting frame, and the end of the transmission belt is fixed to the connecting frame.

10. A working method of a medical imaging contrast device, for the device according to any one of claims 1 to 9, characterized in that, The method is as follows: When viewing diagnostic images, place the two diagnostic images to be compared on the two light-transmitting plates in the comparison assembly on the front surface of the guide plate respectively, and turn on the light sources of the light-transmitting plates so that the two diagnostic images can be visually displayed; After viewing, remove the diagnostic images, and then control the swing arms of the two transmission mechanisms to swing, so that the swing arm currently located in the middle of the front surface of the guide plate swings to the side of the guide plate, and at the same time, the swing arm located on the side of the guide plate swings to the middle of the front surface of the guide plate, so that the two light-transmitting plates connected to the swing arm that swings to the side of the guide plate are closed for cleaning, and at the same time, the two light-transmitting plates connected to the swing arm that swings to the middle of the front surface of the guide plate are opened to facilitate placing diagnostic images again; When cleaning the two light-transmitting plates closed on the side of the guide plate, lower the cleaning roller above the light-transmitting plates into the gap between the closed two light-transmitting plates, so that the cleaning roller cleans the light-transmitting surfaces of the two light-transmitting plates in real time during the descending process.

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