Medical image contrast device and working method thereof

Abstract

The present invention relates to the field of medical imaging diagnostic equipment, and in particular to a medical imaging comparison device and a working method thereof, wherein the device of the present invention includes a housing, a light-transmitting plate, a guide plate, a transmission mechanism, and a cleaning device. During operation, through the swinging of the swing arms of the two transmission mechanisms, when one of the swing arms swings to the middle of the guide plate, the two light-transmitting plates connected to the swing arm automatically open to be parallel, so as to facilitate intuitive comparison of 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 connected to the swing arm automatically close and are located under the cleaning roller of the cleaning device, so that the cleaning roller can descend into the gap between the two closed light-transmitting plates, and clean the light-transmitting surfaces of the two light-transmitting plates at the same time. It can be seen that the invention can realize the synchronization of the cleaning state and the use state of the light-transmitting plates in medical imaging diagnostic equipment, thereby meeting the continuity requirements of high-intensity use scenarios such as emergency rooms and operating rooms.

Description

Technical Field

[0001] The present invention relates to the field of medical imaging diagnostic equipment, and in particular to a medical imaging contrast device and a working method thereof. Background Art

[0002] Medical imaging diagnostic equipment plays a key role in clinical practice. In particular, film viewing lights, as basic tools, directly affect the accuracy of doctors' interpretation of image details such as X-rays and CT films. And with the development of precision medicine, clinical practice has placed higher requirements on the functional integration of imaging equipment. Existing technologies attempt to achieve double-film contrast by adding auxiliary brackets or rotatable structures, such as a medical diagnostic image contrast device disclosed in application number 202211051497.0 and an imaging diagnostic contrast device disclosed in application number 201921932424.6.

[0003] However, taking the above-mentioned prior art as an example, the current equipment with medical diagnostic image contrast function has a temporal and spatial conflict between the cleaning of the light-transmitting plate and the usage status. The equipment is unusable during the cleaning cycle, which makes it difficult to meet the continuity requirements of high-intensity usage scenarios such as emergency rooms and operating rooms. Summary of the Invention

[0004] In view of the deficiencies raised in the above background technology, the present invention provides a medical image contrast device and a working method thereof.

[0005] The present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention discloses a medical image contrast device, comprising:

[0007] A contrast assembly comprising two mutually hinged light-transmitting plates, the front of each light-transmitting plate being light-transmitting, and slots being provided on both sides of the front of each light-transmitting plate, the bottoms of each slot being closed, and the two sides of the diagnostic image being inserted into the two slots from top to bottom and positioned on the bottom surfaces of the lower ends of the slots;

[0008] A guide plate, wherein the middle of the guide plate has an arc-shaped groove, and the contrast components are arranged on both sides of the guide plate;

[0009] A transmission mechanism, wherein the two contrasting assemblies are each connected to a transmission mechanism, the transmission mechanism comprising a swing arm, a sliding member, and a tension arm, one end of the swing arm being connected to the middle of the guide plate for rotation, the axis of the hinged connection of the two light-transmitting plates of the contrasting assembly being located on the other end of the swing arm, and the back surfaces of the two light-transmitting plates of the contrasting assembly being hinged to a tension arm, one end of the two tension arms being away from the light-transmitting plates being pivotally connected to the upper end of the sliding member, a guide pin being fixed to the lower end of the sliding member, the guide pin being adapted to pass through the arc-shaped slot, and the sliding member being restricted to sliding linearly relative to both ends of the swing arm;

[0010] A housing, wherein each of the light-transmitting plates is disposed on a front side of the housing, and the guide plate and the transmission mechanism are disposed inside the housing;

[0011] A cleaning device is provided on both sides of the housing, and includes a cleaning roller, a connecting shaft, a transmission belt, a first counterweight, and a cleaning motor. The connecting shaft is provided above one side of the guide plate and rotates axially in a fixed manner. The cleaning motor drives the connecting shaft to rotate. The transmission belt passes around 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.

[0012] In which, the swing arms of the two transmission mechanisms keep rotating at 90° relative to each other. 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 groove to drive the sliding member to one end connected to the light-transmitting plate, so as to drive the two tension arms to swing toward the middle of the swing arm until the two light-transmitting plates swing to close, and the gap formed between the card slots of the two light-transmitting plates corresponds to under the cleaning roller.

[0013] In a possible implementation of the first aspect, the guide plate is fixed to the bottom of a support arm, a fixed shaft is provided on the support arm, and one end of the swing arms of the two transmission mechanisms are connected to the fixed shaft and swing relative to the guide plate.

[0014] In a possible implementation of the first aspect, sliders that slide linearly relative to the guide plate are provided on both sides of the support arm, and the two sliders slide alternately relative to the guide plate; the sliders are pivotally connected to a first connecting rod, and the first connecting rod is pivotally connected to the side of the swing arm at one end away from the slider.

[0015] In a possible implementation of the first aspect, the support arm fixes the drive motor at a position inside the housing, the output end of the drive motor fixes the drive shaft, and drive rods are fixed at both ends of the drive shaft, the two drive rods are respectively located on both sides of the axis of the drive shaft, and the two drive rods are arranged in parallel; the two ends of the drive shaft are respectively located on both sides of the support arm, and on either side of the support arm, the end of the drive rod is pivotally connected to the second connecting rod, and the end of the second connecting rod away from the drive rod is pivotally connected to the first connecting rod.

[0016] In a possible implementation of the first aspect, the device further includes a housing, a protective cover is provided above the front of the housing, the light-transmitting plate is located on the front of the housing, and the cleaning roller is located in the protective cover when not lowered.

[0017] In a possible implementation of the first aspect, a limit frame is fixed in the protective cover, and the limit frame corresponds to the position above the two light-transmitting plates after merging, and the cleaning roller is embedded in the limit frame when it is not lowered.

[0018] In a possible implementation of the first aspect, guide pins are fixed on both sides of the position where the first counterweight is set in the shell, and vertical guide holes are set at both ends of the first counterweight, and the two guide pins are adapted to pass through the two guide holes.

[0019] In a possible implementation of the first aspect, the cleaning device is configured with two transmission belts, one common end of the two transmission belts is connected to both sides of the cleaning roller, and the other common end of the two transmission belts is connected to both sides of the first counterweight.

[0020] In a possible implementation of the first aspect, the cleaning roller is arranged to rotate under a connecting frame, a second counterweight is fixed on the connecting frame, and an end portion of the transmission belt is fixed to the connecting frame.

[0021] In a second aspect, the present invention further discloses a working method of the above-mentioned device, which is as follows:

[0022] When viewing diagnostic images, the two diagnostic images to be compared are placed on the two light-transmitting plates in the comparison assembly on the front of the guide plate, and the light sources of the light-transmitting plates are turned on so that the two diagnostic images can be displayed intuitively;

[0023] After viewing is completed, the diagnostic image is removed, and then the swing arms of the two transmission mechanisms are controlled to swing, so that the swing arm currently located in the middle of the front face of the guide plate is swung to the side of the guide plate, and at the same time, the swing arm located on the side of the guide plate is swung to the middle of the front face 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 cleaning, and at the same time, the two light-transmitting plates connected to the swing arm swung to the middle of the front face of the guide plate are opened to facilitate the insertion of the diagnostic image again;

[0024] When cleaning the two light-transmitting plates closed at the sides of the guide plate, the cleaning roller above the light-transmitting plates is lowered into the gap between the two closed 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.

[0025] From the above description of the structure of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages: the present invention can realize that 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 contrast assembly connected to the swing arm automatically open to be parallel, so as to facilitate intuitive comparison of 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 contrast assembly connected to the swing arm automatically close and are located under the cleaning roller of the cleaning device, so that the cleaning roller can directly drop into the gap between the two closed light-transmitting plates, and clean the light-transmitting surfaces of the two light-transmitting plates at the same time, so that they can be used again later. It can be seen that the present invention can clean the light-transmitting plates of one contrast assembly when the other contrast assembly is in use, so as to realize the synchronization of the cleaning and use of the light-transmitting plates in the medical imaging diagnostic equipment, save the doctor's cleaning time, and thus meet the continuity requirements of high-intensity use scenarios such as emergency rooms and operating rooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device of the present invention.

[0027] Figure 2 for Figure 1 A magnified schematic diagram.

[0028] Figure 3 for Figure 1 Schematic cross-section along the middle BB direction.

[0029] Figure 4 for Figure 3 Enlarged schematic diagram at point C in the middle.

[0030] Figure 5 This is a schematic diagram of the device of the present invention after the housing is hidden.

[0031] Figure 6It is a structural schematic diagram of two comparison components connected to the guide plate and the support arm through a transmission mechanism.

[0032] Figure 7 for Figure 6 Schematic diagram of the enlarged point D in the middle.

[0033] Figure 8 Schematic diagram of the transmission mechanism connected to the guide plate and the support arm.

[0034] Figure 9 Schematic diagram of the tension arm connecting the hinge and slider.

[0035] Figure 10 It is a schematic diagram of the three-dimensional structure of the cleaning device. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0037] In the following, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0038] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0039] The invention provides a medical image contrast device, as shown in the attached Figure 1 、 3 As shown in Figures 5 and 6, the device includes a housing 1, a contrast assembly, a guide plate 3, a transmission mechanism, and a cleaning device 5. The contrast assembly has two hinged light-transmitting panels 2, each of which is arranged on the front side of the housing 1. The guide plate 3, transmission mechanism, and cleaning device 5 are all arranged inside the housing 1. The housing 1 can be hung on a wall or supported on the ground by a bracket.

[0040] Please refer to the attached Figure 5The light-transmitting plate 2 is a film viewing lamp with a light-transmitting surface, and a light source is provided inside the light-transmitting plate 2 so that the light-transmitting surface is evenly illuminated. C-shaped slots 201 are provided on both sides of the front of the light-transmitting plate 2, and the bottom of the slots 201 are closed. During operation, the two sides of the diagnostic image medium are respectively inserted into the two slots 201 from top to bottom, and the bottom of the diagnostic image is blocked by the bottom surface of the lower end of the slots 201, so that the diagnostic image is placed vertically and attached to the light-transmitting surface of the light-transmitting plate 2. The high-intensity uniform light emitted by the light-transmitting surface penetrates the image medium, which can clearly present diagnostic details including microvascular lesions, tissue calcification foci and tiny anatomical structures. It is particularly suitable for the refined reading needs of medical images such as X-rays and CT films.

[0041] As attached Figure 6 and 7 As shown, a guide plate 3 is fixed within the housing 1 via a connection with a support arm 31. Specifically, one end of the support arm 31 is fixed to the housing 1, while the other end of the support arm 31 is positioned outside the housing 1 to secure the guide plate 3. A curved slot 301 is defined in the center of the guide plate 3. A contrast assembly is positioned on either side of the guide plate 3 (i.e., on either side of the front of the housing 1). Two light-transmitting plates 2 in each contrast assembly are used to hold two diagnostic images, respectively. When the two light-transmitting plates 2 of the contrast assembly are unfolded and aligned parallel, a complete observation plane is formed, facilitating intuitive comparison of the two diagnostic images. This is particularly suitable for clinical scenarios requiring high-precision image contrast, such as orthopedic implant position verification and tumor lesion evolution analysis.

[0042] The two comparison components are connected to the transmission mechanism, and then refer 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 the middle of the guide plate 3 for rotation. Specifically, the support arm 31 is fixedly connected to the fixed shaft 33. One end of the swing arms 41 of the two transmission mechanisms is superimposed 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 connection of the two light-transmitting panels 2 in the comparative assembly is located at the other end of the swing arm 41. Specifically, the back of the light-transmitting panels 2 is fixed with a hinge 21, and the end of the swing arm 41 is fixed with a connecting pin 411. The hinges 21 of the two light-transmitting panels 2 are both sleeved on the connecting pin 411 and rotate relative to the swing arm 41, so that the two light-transmitting panels 2 in the comparative assembly form a synchronous opening and closing kinematic pair at the end of the swing arm 41. That is, the two light-transmitting panels 2 can be tilted relative to each other to open and closed states. The axis of the connecting pin 411 is the axis of the hinge connection of the light-transmitting panels 2.

[0043] Preferably, the conductive wires of the light source inside the light-transmitting plate 2 are routed in a concealed manner, with the wire paths extending linearly along the side edges of the swing arm 41 and the tension arm 43. That is, after the conductive wires are drawn out from the pivot gap of the hinge 21, they pass through the side edges of the tension arm 43 and the swing arm 41 and ultimately flow into the power module inside the housing. Furthermore, the sides of the tension arm 43 and the swing arm 41 can be fixed with wire troughs to confine the conductive wires connected to the light-transmitting plate 2. The above wiring scheme achieves full wire shielding through the engineering plastic wire troughs fixed to the sides of the tension arm 43 and the swing arm 41, which not only meets electrical safety regulations but also maintains the industrial design integrity of the device's appearance.

[0044] The swing arm 41 is provided with a strip hole 401 along its length. The sliding member 42 adopts a three-stage integrated structure, integrating a pivot pin 421, a sliding portion 422, and a guide pin 423 from top to bottom. The sliding portion 422 is loosely fitted into the strip hole 401, allowing the sliding member 42 to produce a limited linear displacement along the length of the swing arm 41. That is, the sliding member 42 is restricted to sliding linearly along the strip hole 401 relative to both ends of the swing arm 41. In the comparative assembly, the hinges 21 on the back of each of the two light-transmitting panels 2 are each hingedly connected to a tension arm 43. The ends of the two tension arms 43 away from the light-transmitting panels 2 are pivotally connected to the upper end of the sliding member 42. When the sliding member 42 slides relative to the strip hole 401, it can drive the two tension arms 43 to swing in a mirrored manner, thereby driving the two light-transmitting panels 2 to flip, achieving a mirror-symmetrical opening and closing state. The guide pin 423 is adapted to pass through the arc groove 301 to form a curved surface pair.

[0045] When the swing arm 41 rotates, since the guide pin 423 passes through the arc groove 301, it will drive the sliding member 42 to move relative to the arc groove 301, and at the same time, the sliding member 42 moves relative to the two ends of the swing arm 41 in the rotating process. Figure 5 and 6 As shown, 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 groove 301 to drive the sliding member 42 to slide toward 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 toward the middle of the swing arm 41 and drive the two light-transmitting plates 2 to flip to form a closed state; and when the swing arm 41 swings to the middle of the guide plate 3, the sliding member 42 slides toward 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.

[0046] Please refer to the attached Figure 7 and 8The support arm 31 is rigidly connected to a slide rail 311 on both sides. The slide rail 311 and the slider 312 form a linear sliding pair, allowing the slider 312 to perform linear displacement along the slide rail 311 relative to the guide plate 3. Both sliders 312 are pivotally connected to a first connecting rod 45. The 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 toward the outside of the housing 1, the first connecting rod 45 generates a thrust that drives the swing arm 41 to deflect toward the center of the guide plate 3. When the slider 312 moves toward the inside of the housing 1, the first connecting rod 45 generates a pulling force that drives the swing arm 41 to deflect toward the side of the guide plate 3.

[0047] When the two sliders 312 alternately slide relative to the guide plate 3, the two transmission mechanisms maintain a symmetrical motion pattern with a 90° phase difference. Specifically, when one slider 312 slides outward, its corresponding first connecting rod 45 pushes the two light-transmitting panels 2 of the contrast assembly carried by the swing arm 41 to rotate to the front of the housing 1 and complete the deployment. Simultaneously, the other slider 312 simultaneously slides inward, and the first connecting rod 45 pulls the two light-transmitting panels 2 of the contrast assembly carried by the corresponding swing arm 41 to a stowed position at the side of the housing 1, maintaining the closed state. This linkage mechanism, through the precise coordination of the slide rails 311 and sliders 312, automatically switches the phases of the two light-transmitting panels 2 of the contrast assembly between the deployed and stowed states, ensuring that the light-transmitting panels 2 at the device's working interface always maintain a clean observation area.

[0048] Furthermore, the support arm 31 is positioned within the housing 1 to secure a drive motor 46, which can be a central axis motor. The output end of the drive motor 46 is secured to a drive shaft, and the two ends of the drive shaft are secured to eccentric drive rods 461 with a phase difference of 180°. Specifically, the two drive rods 461 are located on either side of the axis of the drive shaft, and the two drive rods 461 are arranged in parallel. The two ends of the drive shaft are located on either side of the support arm 31. On either side of the support arm 31, the end of the drive rod 461 is pivotally connected to a second connecting rod 462. The end of the second connecting rod 462, which is away from the drive rod 461, is pivotally connected to the first connecting rod 45, forming a power transmission chain. When the drive motor 46 rotates the drive shaft, the drive rods 461 at each end of the drive shaft rotate accordingly, converting the rotational motion into linear push-pull forces via the second connecting rod 462. When the left drive rod 461 rotates to its outer dead center, the second connecting rod 462 pushes the corresponding slider 312 along the slide rail 311 toward the exterior of the housing 1. Simultaneously, the right drive rod 461 is at its inner dead center, and the second connecting rod 462 pulls the right slider 312 inward along the slide rail 311. These two drive rods 461, with a 180° phase difference, achieve the alternating reciprocating motion of the sliders 312, accurately replicating the automatic switching between the deployed and stowed states of the two contrasting assemblies' light-transmitting panels 2.

[0049] As attached Figure 5 As shown, cleaning devices 5 are provided on both sides of the housing 1 when the light-transmitting plate 2 of the comparison assembly moves to the closed position. Figure 10 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. A protective cover 11 is provided above the front of the housing 1. The top protective cover 11 of the housing 1 adopts a bottom open cavity design. The cleaning rollers 51 of the two cleaning devices 5 are located on both sides of the protective cover 11. Figure 10 The cleaning device 5 also includes a connecting frame 56. The cleaning roller 51 is assembled on the lower part of the connecting frame 56 through a precision bearing. The middle part of the connecting frame 56 is rigidly connected to the second counterweight 561. The width of the connecting frame 56 and the second counterweight 561 is smaller than the effective cleaning surface diameter of the cleaning roller 51. A dynamic gravity compensation mechanism is formed by the mass ratio of the second counterweight 561. That is, when the light-transmitting plate 2 is in a closed state, the gravity generated by the second counterweight 561 causes the connecting frame 56 to carry the cleaning roller 51 and move smoothly downward along the vertical track, ensuring that the cleaning surface of the cleaning roller 51 is in contact with the light-transmitting plate 2.

[0050] Preferably, the cleaning roller 51 can be an electrostatic roller, with conductive slip rings 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, so that the cleaning roller 51 is charged, thereby allowing the cleaning roller 51 to absorb dust particles attached to the surface of the light-transmitting plate 2 through electrostatic attraction. The stator end of the conductive slip ring can be connected to the power source via a conductive wire, specifically to the output end of a circuit for conducting electricity integrated on a circuit board configured in the housing 1. Furthermore, a wire pulley can be provided on the connecting shaft 52, one end of the conductive wire passes around the wire pulley and is connected to the conductive slip ring, and the other end of the conductive wire is connected to the power source.

[0051] Preferably, the cleaning roller 51 utilizes an electrostatic roller body made of a composite conductive material. Precision bearings dynamically connect the ends of the cleaning roller 51 to the rotor ends of the conductive slip rings on both sides of the connecting frame 56. The connecting frame 56 utilizes an insulation-reinforced frame structure. The stator ends of the conductive slip rings on both sides are electrically connected to the DC high-voltage output terminals of the circuit board built into the housing 1 via shielded cables to prevent electromagnetic interference, forming a closed-loop power supply circuit. The conductive slip ring assembly utilizes a gold-nickel alloy contact design to ensure that the cleaning roller 51 continuously receives an electrostatic voltage while rotating. This creates a strong electrostatic field on the roller surface (i.e., the cleaning surface) to attract submicron-sized dust particles from the surface of the light-transmitting plate 2. Furthermore, a wire pulley (not shown) is integrated onto the connecting shaft 52. One end of the conductive wire, after exiting the circuit board, winds circumferentially around the wire pulley to form a redundant routing path, ultimately connecting to the stator input terminals of the conductive slip rings. This wiring arrangement utilizes radial retaining grooves in the wire pulley to provide stress relief for the conductive wires, ensuring stable conduction while avoiding tangled wiring.

[0052] Connecting shaft 52 is positioned above one side of guide plate 3. Specifically, four reinforced connecting beams 12 are fixed above guide plate 3 within housing 1. Two connecting beams 12 on the same side of housing 1 are fixed to bearing seats. The ends of connecting shaft 52 are press-fitted onto the inner rings of the two bearing seats using an interference fit, thereby restricting connecting shaft 52 to axial rotation only within the upper portion of housing 1. A cleaning motor 55 is fixed within housing 1 to drive connecting shaft 52.

[0053] A transmission wheel 531 is fixed to the connecting shaft 52. A transmission belt 532 passes around and engages with the transmission wheel 531. Preferably, the transmission belt 532 can be a chain and the transmission wheel 531 can be a sprocket, or the transmission belt 532 can be a synchronous belt and the transmission wheel 531 can be a synchronous pulley. One end of the transmission belt 532 is also connected to a first counterweight 54 located within the housing 1. The other end of the transmission belt 532 is connected to a connecting frame 56 to which the cleaning roller 51 is connected. When the cleaning motor 55 executes a forward rotation command (i.e., toward the outside of the housing 1 and downward), the transmission wheel 531 drives the transmission belt 532 to extend vertically. At this time, the cleaning roller 51, compensated by the gravity of the second counterweight 561, steadily descends to the gap between the two closed light-transmitting panels 2, performing a double-sided cleaning operation. During the reverse rotation, the transmission belt 532, pulled by the transmission wheel 531, retracts and lifts the cleaning roller 51 into the protective cover 11. Simultaneously, the first counterweight 54, under its own weight, generates a constant force to compensate for the tension of the transmission belt 532 in real time.

[0054] Furthermore, guide pins 423 are fixed on both sides of the position where the first counterweight 54 is set in the shell 1, and vertical guide holes are set at both ends of the first counterweight 54. The two guide pins 423 are adapted to pass through the two guide holes, thereby forming a restriction on the first counterweight 54, ensuring that the counterweight block always maintains a horizontal posture during the lifting process, effectively eliminating the eccentric load of the transmission system, and realizing the dynamic tension balance of the transmission belt 532 under different working conditions.

[0055] Preferably, the cleaning device 5 can be equipped with two transmission belts 532 to form a parallel traction structure. The same end of the two transmission belts 532 is connected to both sides of the connecting frame 56, and the other same end of the two transmission belts 532 is connected to both sides of the first counterweight 54. This dual transmission belt 532 connection is constrained by four points to form a spatially stable structure. When the cleaning motor 55 drives the transmission wheel 531 to rotate, the two transmission belts 532 form a completely synchronized displacement in the vertical plane, effectively constraining the six degrees of freedom of the connecting frame 56 during the lifting process, eliminating roller deflection caused by unilateral force.

[0056] In addition, both sides of the protective cover 11 are fixed with limit frames 57, which correspond to the position above the two light-transmitting plates 2 after they are merged. The bottom edge of the limit frame 57 is processed with a 45° inclined and outward-expanding guide slope, which forms a geometric guide mechanism with the two sides of the cleaning roller 51. When the cleaning roller 51 is driven to rise to the storage position of the protective cover 11, the arc surface of the roller body of the cleaning roller 51 slides along the guide slope of the limit frame 57, 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 constraint, so that the cleaning roller 51 can remain corresponding to the gap between the two light-transmitting plates 2 after closing. Even after 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 corresponds to the bottom of the cleaning roller 51, thereby ensuring the precise positioning of subsequent cleaning operations.

[0057] Furthermore, the top surface of the retaining frame 57 is embedded with a high-conductivity copper alloy base, its surface arrayed with hemispherical elastic electrode contacts. The top of the connecting frame 56 integrates a magnetically positioned energy storage module, and the bottom is provided with a corresponding gradient impedance contact piece. When the cleaning roller 51 completes its upward movement and snaps into the retaining frame 57, the energy storage module, guided by magnetic force, forms a multi-way parallel circuit with the electrode contacts, achieving constant current charging through pressure feedback regulation of the contact piece. This design breaks through the constraints of traditional wires and utilizes the equipment's motion cycle to achieve self-maintenance power supply for the energy storage unit, avoiding the trouble of installing conductive wires.

[0058] The present invention also discloses a working method of the above device, which is as follows:

[0059] When viewing diagnostic images, the two diagnostic images to be compared are placed on the two light-transmitting panels 2 on the front of the housing 1, and the light source of the light-transmitting surface is turned on so that the two diagnostic images can be displayed intuitively;

[0060] After viewing is completed, the diagnostic image is removed, and then the drive 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 face 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 face of the guide plate 3, so that the two light-transmitting plates 2 connected to the swing arm 41 swung to the side of the guide plate 3 are closed, which is convenient for subsequent cleaning, and at the same time, the two light-transmitting plates 2 connected to the swing arm 41 swung to the middle of the front face of the guide plate 3 are opened, which is convenient for viewing the diagnostic image again;

[0061] When cleaning the two light-transmitting plates 2 that are closed on the sides 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, making it convenient for the light-transmitting plates 2 to be moved to the middle of the guide plate 3 and opened again for use.

[0062] To sum up, the present invention can realize that when one of the swing arms 41 of the transmission mechanism 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 facilitate intuitive comparison of 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 viewing the diagnostic images again later. It can be seen that the present invention allows the light-transmitting plates 2 of another pair of comparison components to be cleaned while the light-transmitting plates 2 of one comparison component are in use. The light-transmitting plates 2 of the comparison component after use are then moved to the side of the guide plate 3 for cleaning, and the group of light-transmitting plates 2 of the comparison component after cleaning are moved to the front of the guide plate 3 for reuse. This cycle can always ensure that there is a group of light-transmitting plates 2 with a clean light-transmitting surface for use, saving the doctor's cleaning time, thereby meeting the continuity requirements of high-intensity usage scenarios such as emergency rooms and operating rooms.

[0063] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A medical image contrast device, characterized in that: The device includes: A contrast assembly comprising two mutually hinged light-transmitting plates, the front of each light-transmitting plate being light-transmitting, and slots being provided on both sides of the front of each light-transmitting plate, the bottoms of each slot being closed, and the two sides of the diagnostic image being inserted into the two slots from top to bottom and positioned on the bottom surfaces of the lower ends of the slots; A guide plate, wherein the middle of the guide plate has an arc-shaped groove, and the contrast components are arranged on both sides of the guide plate; A transmission mechanism, wherein the two contrasting assemblies are each connected to a transmission mechanism, the transmission mechanism comprising a swing arm, a sliding member, and a tension arm, one end of the swing arm being connected to the middle of the guide plate for rotation, the axis of the hinged connection of the two light-transmitting plates of the contrasting assembly being located on the other end of the swing arm, and the back surfaces of the two light-transmitting plates of the contrasting assembly being hinged to a tension arm, one end of the two tension arms being away from the light-transmitting plates being pivotally connected to the upper end of the sliding member, a guide pin being fixed to the lower end of the sliding member, the guide pin being adapted to pass through the arc-shaped slot, and the sliding member being restricted to sliding linearly relative to both ends of the swing arm; A housing, wherein each of the light-transmitting plates is disposed on a front side of the housing, and the guide plate and the transmission mechanism are disposed inside the housing; A cleaning device is provided on both sides of the housing, and includes a cleaning roller, a connecting shaft, a transmission belt, a first counterweight, and a cleaning motor. The connecting shaft is provided above one side of the guide plate and rotates axially in a fixed manner. The cleaning motor drives the connecting shaft to rotate. The transmission belt passes around 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. In which, the swing arms of the two transmission mechanisms keep rotating at 90° relative to each other. 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 groove to drive the sliding member to one end connected to the light-transmitting plate, so as to drive the two tension arms to swing toward the middle of the swing arm until the two light-transmitting plates swing to close, and the gap formed between the card slots of the two light-transmitting plates corresponds to under the cleaning roller.

2. The device according to claim 1, wherein The guide plate is fixed to the bottom of a support arm, a fixed shaft is provided on the support arm, and one end of the swing arms of the two transmission mechanisms are connected to the fixed shaft and swing relative to the guide plate.

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

4. The device according to claim 3, characterized in that The support arm fixes the drive motor at a position inside the housing, the output end of the drive motor fixes the drive shaft, and drive rods are fixed at both ends of the drive shaft, the two drive rods are respectively located on both sides of the axis of the drive shaft, and the two drive rods are arranged in parallel; the two ends of the drive shaft are respectively located on both sides of the support arm, and on either side of the support arm, the end of the drive rod is pivotally connected to the second connecting rod, and the end of the second connecting rod away from the drive 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 also includes a shell, a protective cover is arranged above the front of the shell, the light-transmitting plate is located on the front of the shell, and the cleaning roller is located in the protective cover when it is not lowered.

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 set in the shell, and vertically penetrating guide holes are set at both ends of the first counterweight, and the two guide pins are adapted to pass through the two guide holes.

7. The device according to claim 5, characterized in that A limit frame is fixed in the protective cover. The limit frame corresponds to the position above the two light-transmitting plates after they are combined. The cleaning roller is embedded in the limit frame when it is not lowered.

8. The device according to claim 1, wherein The cleaning device is equipped with two transmission belts, one common end of the two transmission belts is connected to both sides of the cleaning roller, and the other common end of the two transmission belts is 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 an end portion of the transmission belt is fixed to the connecting frame.

10. A method for operating a medical image contrast device, in accordance with the device according to any one of claims 1 to 9, characterized in that: The method is as follows: When viewing diagnostic images, the two diagnostic images to be compared are placed on the two light-transmitting plates in the comparison assembly on the front of the guide plate, and the light sources of the light-transmitting plates are turned on so that the two diagnostic images can be displayed intuitively; After viewing is completed, the diagnostic image is removed, and then the swing arms of the two transmission mechanisms are controlled to swing, so that the swing arm currently located in the middle of the front face of the guide plate is swung to the side of the guide plate, and at the same time, the swing arm located on the side of the guide plate is swung to the middle of the front face 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 cleaning, and at the same time, the two light-transmitting plates connected to the swing arm swung to the middle of the front face of the guide plate are opened to facilitate the insertion of the diagnostic image again; When cleaning the two light-transmitting plates closed at the sides of the guide plate, the cleaning roller above the light-transmitting plates is lowered into the gap between the two closed 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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