A reading device for radiological image diagnosis

Abstract

This invention relates to the field of radiology, specifically to a film reading device for radiological image diagnosis. The device includes a hollow housing with symmetrically arranged fixing components on its side walls. Each fixing component includes a pressure plate. A first pull rod and a second pull rod are fixedly connected to the side wall of the pressure plate near the housing, extending into the housing and slidably connected to the side wall. A protrusion is fixedly connected to the bottom of each pull rod, and a pressure block is fixedly connected to the side of the protrusion near the pressure plate, extending out of the housing. A sliding plate is slidably connected inside the housing, with the first and second pull rods fixed to its side wall. A pressure rod is fixedly connected to the other side of the sliding plate, and a linkage component for assisting in clamping the film is provided at the other end of the pressure rod. This invention, through the linkage component formed by the pressure plate, pressure block, and airbag, effectively prevents the film from sticking too tightly to the housing wall and becoming difficult to remove.

Description

Technical Field

[0001] This invention relates to the field of radiology, and more specifically to a viewing device for radiological image diagnosis. Background Technology

[0002] Radiological imaging diagnosis is one of the most crucial examination methods in clinical medicine, and the film viewing device (usually called a viewing lamp or lightbox) is a core auxiliary device for radiologists to observe silver halide film images. Its performance directly affects the accuracy of diagnosis and work efficiency. Since the discovery of X-rays and their application in medical imaging, the viewing lamp has been deeply integrated with analog imaging technology, evolving from early simple lightboxes to modern high-brightness, high-uniformity LED viewing lamps. It is one of the iconic devices of the analog medical imaging era.

[0003] Traditional film viewing devices (such as the Yadilete AD8200 film viewing lamp) typically consist of a light source system, a light guiding and homogenizing system, a housing fixing component, and auxiliary components. Their core operating logic is based on the transmission imaging principle of silver halide film: electrical energy is converted into a uniform surface light source; the light penetrates the film in areas of different densities, forming images of contrasting light and dark areas. Doctors observe these images in a darkened or semi-dark environment to determine the location, shape, and nature of lesions. To achieve stable film positioning during observation, traditional film viewing devices generally employ a slot-type fixing structure—slit-like slots are set above or on both sides of the viewing lamp. During use, the edge of the film is inserted into the slot, causing the film to adhere to the surface of the homogenizing panel. Position is maintained by the clamping force of the slot or the film's own weight.

[0004] In actual clinical application, it has been found that this traditional slot-type fixation method exposes several operational inconveniences and safety hazards. First, the thickness of a single layer of radiographic film (especially X-ray film) is usually between 0.5 mm and 5 mm, and the material has a certain degree of flexibility. When the film is inserted into the slot above the viewer lamp, the film and the light-diffusing panel often adhere extremely tightly. In addition, the light-diffusing panel is mostly made of acrylic or glass with a smooth surface. Under the influence of static electricity or slight moisture, the film is easily attracted to the panel, resulting in a significant increase in resistance when removing it.

[0005] Operators typically need to use their fingertips to forcefully pry or pull the film from one edge to remove it from the slot. Fingernails or rough fingertips can easily scratch the emulsion layer on the film surface during this process. The emulsion layer of silver halide film is the sensitive layer carrying image information; once scratched, artifacts or missing information will appear in the corresponding image area, affecting diagnostic accuracy to the point of misdiagnosis or missed diagnosis. This is especially true for images that need to be stored long-term, as scratches are irreversible physical damage. Furthermore, the edges of the film (especially X-ray films that have been cut but not sufficiently rounded) are often sharp, and medical personnel are prone to cutting their fingers when forcefully prying the film, posing a risk of occupational exposure and infection. In addition, frequent prying accelerates wear on the slot structure, causing the film to become loose and further reducing the efficiency of image reading.

[0006] The present invention provides a viewing device for radiological image diagnosis to solve the above-mentioned problems. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a film viewing device for radiological image diagnosis, which avoids the situation where the film is difficult to remove due to excessive adhesion to the surface of the viewing lamp, thereby facilitating medical staff to easily and safely handle the film.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows: A film reading device for radiological image diagnosis includes a hollow box body. The side walls of the box body are symmetrically equipped with fixing components, each including a pressure plate. A first pull rod and a second pull rod are fixedly connected to the side wall of the pressure plate near the box body, respectively. Both the first and second pull rods extend into the box body and are slidably connected to the side wall of the box body. A protrusion is fixedly connected to the bottom of both the first and second pull rods. A pressure block is fixedly connected to the side of the protrusion near the pressure plate, and both pressure blocks extend out of the box body. A sliding plate is slidably connected inside the box body. The first and second pull rods are fixed to the side of the sliding plate near the pressure plate. A pressure rod is fixedly connected to the other side of the sliding plate, and a linkage component for assisting in clamping the film is provided at the other end of the pressure rod.

[0009] The technical principles of the above solution are as follows: When medical staff need to insert the film, they place it between the pressure rod and the protrusion, activating the linkage mechanism to move it into the housing. The pressure rod moves inward, causing the slide plate to slide within the housing. Since both the first and second pull rods are fixed to the side wall of the slide plate, the movement of the slide plate causes the pressure plate to move inward. The space between the slide plate and the housing decreases, activating the linkage mechanism to clamp the film, making it more secure. When it's time to remove the film, the linkage mechanism moves the pressure rod outward, causing the slide plate, first pull rod, and second pull rod to move outward simultaneously. The linkage mechanism releases the film; the distance between the protrusion and the housing prevents the film from sticking too tightly to the viewing lamp surface.

[0010] The above approach has the following beneficial effects: 1. This solution effectively solves the problem of inconvenient film fixing and removal in traditional methods. Through symmetrically arranged fixing components, the film can be easily clamped and released by the cooperation of pressure plates, pull rods and pressure blocks. The protrusions can play a limiting role to prevent excessive pulling and damage to the linkage components.

[0011] 2. This solution achieves simultaneous clamping on both sides, ensuring stable and reliable fixation. When the pressure bar is pressed or released, the slide plate drives the pull rods and pressure plates on both sides to move synchronously, ensuring that the clamping force of the pressure plates on the left and right sides of the box is uniform and consistent, avoiding warping or displacement of the film due to unilateral force, and improving the stability of the film during the reading process.

[0012] 3. This solution avoids damage caused by direct contact between the film and fingers. The film is clamped by the pressure plate and linkage components, eliminating the need to pick up the film with your fingers. This prevents fingers from scratching the film surface and ensures image clarity. It also prevents the film edges from scratching the fingers of medical staff, eliminating potential safety hazards and improving the safety and practicality of the device.

[0013] Furthermore, the linkage component includes an electric rod, the bottom of which is fixedly connected to the side wall of the box. The telescopic end of the electric rod is fixed to the pressure rod. An airbag is fixedly connected to the side of the pressure plate near the box, and the airbag is located in a one-to-one correspondence between the pressure plate and the pressure block.

[0014] Beneficial effects: Enables flexible compression and linkage adjustment during image reading. Compared to rigid linkage structures, the airbag can adaptively deform according to the thickness of the image, which can not only stably compress the image and avoid diagnostic errors caused by image displacement and wrinkles during image reading, but also prevent rigid compression from causing wear and damage to the image.

[0015] Furthermore, gas channels are opened inside the pressure plate, the first pull rod, the second pull rod, and the slide plate, and the airbag is connected to the box body through the gas channels.

[0016] Beneficial effects: Optimizes the transmission efficiency and stability of the linkage components. The gas channel enables rapid and smooth gas flow between the airbag and the housing, avoiding linkage lag caused by gas stagnation. It ensures that gas flows rapidly between the housing and the airbag during the movement of the slide, thereby enabling the pressure block to quickly press and release the image film.

[0017] Furthermore, a light guide plate is fixedly connected to the side of the housing near the pressure plate.

[0018] Beneficial effects: Optimizes the lighting effect for image reading, improving the accuracy of radiological image diagnosis. The light guide plate can evenly diffuse the light source inside the box, avoiding problems such as uneven light intensity, light spots, and reflections caused by direct light.

[0019] Furthermore, the surface of the compact is provided with an anti-slip layer.

[0020] Beneficial effects: Increases the friction of the pressure block and improves the stability of image film fixation.

[0021] Furthermore, the bottom of the box is equipped with a hollow base.

[0022] Beneficial effects: Improves the stability of the device and ease of use. The base increases the contact area between the device and the surface it is placed on (such as a viewing table or desktop), lowers the device's center of gravity, and prevents the device from tipping over due to an excessively high center of gravity or external impact.

[0023] Furthermore, several lamp tubes are fixedly connected to the inner wall of the box.

[0024] Beneficial effects: Provides ample and stable light source to meet the illumination needs of radiology film reading. Several lamps are evenly distributed on the inner wall of the cabinet, enabling multi-angle coverage of the light source. Combined with the light guide plate, this further improves the uniformity of illumination.

[0025] Furthermore, the base is equipped with a control component for adjusting the brightness of the lamp tube. The control component includes a button and a controller. The controller is fixedly connected to the inner wall of the base, and the button is fixedly connected to the base.

[0026] Beneficial effects: Enables convenient and precise adjustment of lamp brightness, adapting to different film reading scenarios and the visual needs of medical staff. Radiology staff can quickly operate the system via buttons on the base, and the controller precisely adjusts the lamp brightness after receiving instructions.

[0027] Furthermore, a battery is installed inside the base.

[0028] Beneficial effects: Enables wireless power supply for the device, improving its mobility and applicability.

[0029] Furthermore, the base is equipped with a switch to control the opening and closing of the battery.

[0030] Beneficial effects: Enables precise control of the battery, saves energy, and extends the battery's lifespan. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the main body of the image reading device for radiological image diagnosis according to the present invention; Figure 2 This is an isometric view of the image reading device for radiological image diagnosis according to the present invention; Figure 3 This is a top sectional view of the image reading device for radiological image diagnosis according to the present invention; Figure 4 This is a side sectional view of the image reading device for radiological image diagnosis according to the present invention; Figure 5 for Figure 4 Enlarged view of part A in the middle.

[0032] The reference numerals in the accompanying drawings of the instruction manual include: 1. Box body; 2. Pressure plate; 3. Protrusion; 4. Pressure block; 5. Slide plate; 6. Pressure rod; 7. Electric rod; 8. Airbag; 9. Gas channel; 10. Light guide plate; 11. Base; 12. Lamp tube; 13. Controller; 14. Button; 15. Battery; 16. Switch; 17. Anti-slip layer; 101. First pull rod; 102. Second pull rod. Detailed Implementation

[0033] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The following detailed description illustrates the specific implementation method: Example 1:

[0037] As attached Figure 1 As shown: A viewing device for radiological image diagnosis includes a hollow box 1. The side walls of the box 1 are symmetrically provided with fixing components. Each fixing component includes a pressure plate 2. A first pull rod 101 and a second pull rod 102 are respectively welded to the side wall of the pressure plate 2 near the box 1. The first pull rod 101 and the second pull rod 102 both extend into the interior of the box 1 and are slidably connected to the box 1. A protrusion 3 is fixedly connected to the bottom of the first pull rod 101 and the second pull rod 102. A pressure block 4 is welded to the side of the protrusion 3 near the pressure plate 2 and extends out of the box 1. Inside the housing 1, a slide plate 5 is slidably connected via a slide rail. The first pull rod 101 and the second pull rod 102 are both welded and fixed to the side of the slide plate 5 near the pressure plate 2. A pressure rod 6 is fixedly connected to the other side of the slide plate 5. The other end of the pressure rod 6 is equipped with a linkage component for assisting in clamping the film.

[0038] The specific implementation process is as follows: When reviewing the films, medical staff first place the radiology film on the light-diffusing panel on the front of the housing 1, ensuring that the upper and lower ends of the film are inserted into the gaps between the pressure plates 2 and pressure blocks 4 of the two sets of fixing components, so as to ensure that the film is placed flat and without deviation. Then, the medical staff adjusts the linkage component, which drives the pressure rod 6 to move into the housing 1, thereby driving the slide plate 5 to slide along the track and carry the first pull rod 101 and the second pull rod 102 into the housing 1. During the sliding process, the slide rail and the slide plate 5 are closely matched to ensure that the slide plate 5 moves smoothly and without jamming. A closed space is formed between the slide plate 5 and the side of the housing 1 away from the pressure plate 2. The movement of the slide plate 5 controls the clamping and releasing of the linkage component.

[0039] When medical staff need to remove the film, the pressure rod 6 moves outward from the housing 1, simultaneously driving the slide plate 5, the first pull rod 101, and the second pull rod 102 to move outward from the housing. The pressure plate 2 and the pressure block 4 move outward and away from the housing 1. At this time, the linkage component resets. Since the film is placed in the gap between the pressure plate 2 and the pressure block 4, when taking it out, the pressure plate 2 is pulled outward. At this time, there is a certain gap between the pressure block 4 and the side wall of the housing 1, and the film will not be tightly attached to the light-diffusing panel. Medical staff only need to gently pick up the film to complete the removal without having to use their fingers to pick it up. The operation is convenient and safe.

[0040] In this design, the pressure plate 2 and the pressure block 4 effectively prevent the film from being in close contact with the housing 1, making it difficult to remove. The protrusion 3 not only fixes the pressure block 4 but also acts as a limit, preventing excessive pulling force from causing the linkage component to fail. Furthermore, the linkage transmission structure consisting of the first pull rod 101, the second pull rod 102, the slide plate 5, and the pressure rod 6 enables one-handed operation for clamping and releasing the film, offering advantages such as compact structure, convenient operation, minimal damage to the film, and safe handling.

[0041] Example 2:

[0042] As attached Figure 3 As shown, the difference from Embodiment 1 is that the linkage component includes an electric rod 7 (the electric rod 7 is equipped with a motor and control buttons; the preferred model of the electric rod 7 is an LX835 electric push rod). The bottom of the electric rod 7 is fixedly connected to the side wall of the housing 1, and the output end of the electric rod 7 is welded to the pressure rod 6, as shown. Figure 5 As shown, airbags 8 are symmetrically glued to the side of the pressure plate 2 near the box body 1, and the airbags 8 correspond one-to-one with the pressure blocks 4. Figure 4 As shown, the pressure plate 2, the first pull rod 101, the second pull rod 102, and the slide plate 5 all have gas channels 9 inside. The air bag 8 is connected to the box body 1 through the gas channels 9. In addition, the surface of the pressure block 4 is provided with an anti-slip layer 17.

[0043] The specific implementation process is as follows: When medical staff start the motor and press the control button to control the electric rod 7 to retract, since the telescopic end of the electric rod 7 is fixedly connected to the pressure rod 6, the electric rod 7 will drive the pressure rod 6 to move synchronously towards the box 1, thereby driving the slide plate 5 to slide into the box 1. The gas between the slide plate 5 and the box 1 is compressed and enters the airbag 8 through the gas channel 9, causing the airbag 8 to inflate. The expansion of the airbag 8 reduces the gap between the pressure plate 2 and the pressure block 4. At this time, the airbag 8 clamps the film. When medical staff control the electric rod 7 to extend, the pressure rod 6 moves outward from the box 1. The pressure rod 6 pulls the slide plate 5 outward from the box 1, making the space between the slide plate 5 and the box 1 larger and forming a negative pressure. This causes the gas in the gas channel 9 to transfer to the box 1, causing the airbag 8 to shrink. At this time, the gap between the pressure plate 2 and the pressure block 4 expands, and medical staff can easily remove it.

[0044] Furthermore, the anti-slip layer 17 on the pressure block 4 can increase the friction between the film and the pressure block 4, so that when the airbag 8 inflates, it can cooperate with the pressure block 4 to further clamp the film. The way the anti-slip layer 17 and the airbag 8 clamp together is different from the traditional clamping method or the fixing method of the clip or slot, which can effectively protect the film and prevent the film from being scratched or damaged.

[0045] This solution utilizes an electric lever 7, a sliding plate 5, and an airbag 8 to employ pneumatic expansion instead of traditional rigid clamping. The electric lever 7 controls the movement of the sliding plate 5, thereby controlling the transfer of gas between the housing 1 and the airbag 8 to achieve pneumatic expansion clamping. This not only avoids scratches or indentations on the film surface but also saves effort and provides a sensitive response. At the same time, the anti-slip layer 17 further enhances the reliability of clamping, making it particularly suitable for radiology film reading scenarios where films are frequently changed.

[0046] Example 3:

[0047] As attached Figure 3 As shown, the difference from Embodiment 2 is that several lamp tubes 12 are welded to the inner wall of the housing 1. The lamp tubes 12 are preferably 2835 surface-mount LED lamp tubes 12. A light guide plate 10 is fixedly connected to the side of the housing 1 near the pressure plate 2. A hollow base 11 is provided at the bottom of the housing 1. The base 11 contains a control component for adjusting the brightness of the lamp tubes 12. The control component includes a button 14 and a controller 13 (equipped with a PWM dimming drive module, preferably a Yusenyi PWM module). The controller 13 is welded to the inner wall of the base 11. The controller 13 is preferably a Huihai H5432B constant current drive chip. The button 14 is welded to the base 11. A battery 15 is provided inside the base 11. A switch 16 for controlling the opening and closing of the battery 15 is provided on the base 11.

[0048] The specific implementation process is as follows: Before reviewing the film, medical staff first activate the battery 15 via the switch 16 on the base 11. The battery 15 powers the lamp tubes 12 and control components inside the housing 1. Then, based on the ambient light and the density differences of the film itself, they press the button 14 on the base 11. The button 14 sends a brightness adjustment signal to the controller 13, which adjusts the luminous intensity of the lamp tubes 12 accordingly, so that the light distribution panel obtains uniform and suitable backlight brightness. The light emitted by the lamp tubes 12 is scattered by the light guide plate 10 and evenly illuminates the light distribution panel on the front of the housing 1, avoiding local over-brightness or dark areas, thereby improving the display clarity of the film image.

[0049] After the film is clamped, medical staff can perform image diagnosis under optimized backlighting conditions. After reviewing the film, first turn off the lamp 12 or adjust it to the lowest brightness using button 14, and then disconnect the main power supply of the battery 15 using switch 16 to save energy and extend the life of the lamp 12.

[0050] This solution further optimizes the lighting and control system, integrating high-performance LED light sources, constant current drive and PWM fine dimming, as well as 15V backup battery power supply. It not only meets the strict requirements of medical image reading for high brightness, high uniformity and flicker-free operation, but also takes into account ease of operation and energy consumption management. It is particularly suitable for the actual working scenarios of frequent and long-term image reading in radiology departments.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A viewing device for radiological image diagnosis, comprising a hollow housing (1), characterized in that, The side walls of the box body (1) are symmetrically equipped with fixing components, each of which includes a pressure plate (2). A first pull rod (101) and a second pull rod (102) are fixedly connected to the side wall of the pressure plate (2) closest to the box body (1). Both the first pull rod (101) and the second pull rod (102) extend into the interior of the box body (1). Both the first pull rod (101) and the second pull rod (102) are slidably connected to the box body (1). The bottom of the first pull rod (101) and the second pull rod (102)... Each part is fixedly connected with a protrusion (3), and each protrusion (3) is fixedly connected with a pressure block (4) on the side near the pressure plate (2). The pressure blocks (4) extend to the outside of the box body (1). A sliding plate (5) is slidably connected inside the box body (1). The first pull rod (101) and the second pull rod (102) are fixed to the side of the sliding plate (5) near the pressure plate (2). A pressure rod (6) is fixedly connected to the other side of the sliding plate (5). The other end of the pressure rod (6) is provided with a linkage component for assisting in clamping the film.

2. The image reading device for radiological image diagnosis according to claim 1, characterized in that, The linkage component includes an electric rod (7), the bottom of which is fixedly connected to the side wall of the box (1), the output end of the electric rod (7) is fixed to the pressure rod (6), and an airbag (8) is fixedly connected to the side of the pressure plate (2) near the box (1), and the airbag (8) corresponds one-to-one with the pressure block (4).

3. The image reading device for radiological image diagnosis according to claim 2, characterized in that, Gas channels (9) are opened inside the pressure plate (2), the first pull rod (101), the second pull rod (102), and the slide plate (5). The air bag (8) and the box body (1) are connected through the gas channels (9).

4. The image reading device for radiological image diagnosis according to claim 3, characterized in that, A light guide plate (10) is fixedly connected to the side of the housing (1) near the pressure plate (2).

5. The image reading device for radiological image diagnosis according to claim 4, characterized in that, The surface of the pressing block (4) is provided with an anti-slip layer (17).

6. The image reading device for radiological image diagnosis according to claim 5, characterized in that, The bottom of the box (1) is provided with a hollow base (11).

7. The image reading device for radiological image diagnosis according to claim 6, characterized in that, Several lamp tubes (12) are fixedly connected to the inner wall of the box (1).

8. The image reading device for radiological image diagnosis according to claim 7, characterized in that, The base (11) is equipped with a control component for adjusting the brightness of the lamp tube (12). The control component includes a button (14) and a controller (13). The controller (13) is fixedly connected to the inner wall of the base (11), and the button (14) is fixedly connected to the base (11).

9. The image reading device for radiological image diagnosis according to claim 8, characterized in that, A battery (15) is installed inside the base (11).

10. The image reading device for radiological image diagnosis according to claim 9, characterized in that, The base (11) is equipped with a switch (16) for controlling the opening and closing of the storage battery (15).

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