Performance Detection Device for Medical Endoscope Cold Light Source

Abstract

The present invention discloses a performance detection device for a cold light source of a medical endoscope; the present invention relates to the technical field of medical endoscopes; a stable placement component is constructed for precisely placing and adjusting the orientation of the endoscope. The shooting end of the endoscope is connected to a black and white camera through a data cable to ensure the stability and clarity of image transmission. The testing mechanism is the core of this solution; the design of the rotating component enables the transmissive standard color plate target to rotate flexibly, simulating test scenarios at different angles. The topological deformation unit realizes precise control of the curved surface shape of the transmissive standard color plate target through the annular array arrangement of the first servo cylinder, expanding the coverage of the test. The coordinated work of the fine adjustment mechanism and the macro adjustment mechanism enables the testing mechanism to achieve fine and macroscopic angle and position adjustments in multiple directions, meeting complex test requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of medical endoscopes, specifically to the optical testing technology of medical endoscopes, and particularly to a performance detection device for the cold light source of medical endoscopes. Background Art

[0002] An endoscope is a precision optical instrument widely used in the medical field, especially playing an irreplaceable role in minimally invasive surgeries. It transmits the image inside the human body to the doctor's eyes through the optical and mechanical structures inside the slender tube body, enabling the doctor to directly observe the internal organs and tissues of the patient, thereby making accurate diagnoses and treatments. However, color deviation problems may occur during the use of endoscopes. Such deviations may stem from various factors, such as the manufacturing precision of the endoscope lens, the characteristics of the optical material, the stability of the light source, and the contamination and wear of the lens during use.

[0003] Color deviation not only affects the doctor's accurate identification of diseased tissues but may also lead to misjudgments, increasing the surgical risk and potential safety hazards for patients. Therefore, accurately detecting and evaluating the color deviation of medical endoscopes is particularly important.

[0004] The literature "Wang Yunlong. Research on Qualitative Detection Technology for Optical Performance Quality Control of Medical Endoscopes [D]. Southern Medical University, 2015." discloses a testing method that realizes the detection and judgment of the color difference problem of endoscopes by comparing the colors of red, blue, and green color comparison cards with the image colors; Chinese invention patent CN118706411A discloses a device and method for detecting various color deviations of medical endoscopes (publication date: September 27, 2024), which provides a stable and uniform light source through an integrating sphere to ensure consistent lighting conditions during the detection process. At the same time, a transmissive standard color plate target is used as the observation target, which consists of multiple color regions, and each color region has the same transmittance, thus ensuring the accuracy and reliability of color detection. During the detection process, an image of the transmissive standard color plate target is collected by a black and white camera and transmitted to an image processing computer for processing. The computer calculates the deviation of the endoscope under each color by comparing the change in the gray values of each color region before and after placing the endoscope to be tested.

[0005] However, the above traditional technologies have two technical problems:

[0006] (1)When an endoscope is in actual use, the detection angle between it and the irradiated object is dynamically changing. This dynamic change stems from the flexibility of the endoscope and the need for the doctor to adjust the angle and position of the endoscope according to different observation requirements during the operation. In contrast, when detecting in the detection mode of "relative stillness between the endoscope and the standard color plate target", since the detection angle in the detection mode is fixed, it may not cover all possible angle changes of the endoscope in actual use. Therefore, color deviations at certain angles may not be detected, resulting in missed detections. Even if the detection mode can detect color deviations at certain angles, since these angles are not the optimal observation angles of the endoscope in actual use, the accuracy and reliability of the detection results may be affected. For example, at some extreme angles, the optical performance of the endoscope may change, leading to misjudgments or missed judgments of color deviations.

[0007] (2)The actual human body structure is complex and diverse, including many curved body parts. The surface shapes and radii of curvature of these curved body parts are different, posing higher requirements for the detection angle and lighting conditions of the endoscope. Since the standard color plate target is flat, it cannot simulate the complex structure of the curved body parts of the human body. Therefore, the endoscope may not be able to fully expose its detection ability for curved body parts in the detection mode, resulting in color deviations at certain angles not being detected. Even if the detection mode can detect the color deviation of the endoscope for the flat target, since these angles and lighting conditions are not optimized for curved body parts, the accuracy and reliability of the detection results may not be directly applied to actual human body examinations. For example, on curved body parts, the endoscope may need to detect at different incident angles to obtain clear images and accurate color information.

[0008] Therefore, the present invention proposes a performance detection device for a medical endoscope cold light source. Summary of the Invention

[0009] In view of this, the embodiments of the present invention hope to provide a performance detection device for a medical endoscope cold light source to solve or alleviate the technical problems existing in the prior art, that is:

[0010] (1)How to dynamically adjust the spatial orientation of the transmissive standard color plate target relative to a stationary medical endoscope to avoid missed detections, misjudgments or missed judgments;

[0011] (2)How to flexibly and dynamically control and adjust the curved surface shape of the transmissive standard color plate target so that the detection mode can detect the color deviation of the endoscope for the curved body target;

[0012] The technical solution of the present invention is realized as follows: A performance detection device for a medical endoscope cold light source: In implementation, first, a placement component is constructed to place and adjust the orientation of the endoscope. The shooting end of the endoscope is connected to a black and white camera through a data cable to ensure the stability and clarity of image transmission. The test mechanism, as the core of this solution, its rotating component is connected and driven by mechanical or electromagnetic means to rotate a flexible transmissive standard color plate target. The transmissive standard color plate target is made of a flexible material with a high transmittance rate, and its surface is coated with area blocks with evenly distributed colors. The integrating sphere, as the light source, is precisely installed on one side of the transmissive standard color plate target to ensure sufficient and uniform light illumination. The micro-motion adjustment mechanism realizes the micro-angle adjustment of the integrating sphere, the rotating component, and the transmissive standard color plate target relative to the endoscope. In addition, the macro-motion adjustment mechanism is responsible for the large-range spatial orientation adjustment of the test mechanism relative to the endoscope;

[0013] In one implementation mode: In the specific implementation of the rotating component, the hollow seat ring not only serves as the support structure of the rotating component but also provides space for the light source path inside it. A third motor is installed on the seat ring, and this motor generates rotational power through electric drive. The output shaft of the third motor is connected to a gear, and the gear starts to rotate under the drive of the motor. Meshing with the gear is a toothed ring, and the inner teeth of the toothed ring cooperate with the outer teeth of the gear. The toothed ring rotates and fits inside the seat ring. The end face of the toothed ring is fixedly connected to a hollow rotating frame, which is also designed to be hollow to reduce weight and facilitate light transmission. The transmissive standard color plate target is fixed inside the rotating frame and rotates with the rotation of the rotating frame. In this way, when the third motor is started, the transmissive standard color plate target can be rotated through the meshing transmission mechanism. At the same time, the hollow part of the seat ring provides a path for the light source provided by the integrating sphere, ensuring that the light source can evenly irradiate the transmissive standard color plate target.

[0014] In one implementation mode: In the specific implementation of the topological deformation unit, several first servo cylinders arranged in an annular array are used to control the surface shape of the transmissive standard color plate target. These first servo cylinders are precisely installed on the rotating frame, their cylinders are fixed, and the piston rods are adhesively connected to the outer edge of the transmissive standard color plate target. This annular array arrangement ensures that multiple piston rods are evenly adhesively connected to the outer edge of the transmissive standard color plate target, enabling precise control of the target surface shape. When it is necessary to change the surface shape of the transmissive standard color plate target, only need to send instructions to one or more first servo cylinders through the control system to make their piston rods perform telescopic movements. Since the piston rods are adhesively connected to the outer edge of the transmissive standard color plate target, the telescopic movement of the piston rods will directly drive the deformation of the target surface, thereby realizing the dynamic adjustment of the surface shape.

[0015] In one embodiment: In the specific implementation of the fine adjustment mechanism, it is constructed by using a first disk body, a second disk body, and second servo cylinders arranged in an annular array between the two. The first disk body and the second disk body serve as the main support structures of the fine adjustment mechanism, and a certain distance is maintained between them through precise machining and assembly. The second servo cylinders are evenly arranged between the first disk body and the second disk body to form an annular array. The cylinder body and the piston rod of each second servo cylinder are universally hinged through a universal joint coupling. This design enables the second servo cylinder to generate small displacements and angular changes in multiple directions. When it is necessary to adjust the spatial orientation and angle of the transmissive standard color plate target relative to the endoscope, only by sending an instruction to the second servo cylinder through the control system to make it perform corresponding telescopic movements, thereby driving the first disk body or the second disk body to generate small displacements and angular changes, and then achieving precise adjustment of the transmissive standard color plate target.

[0016] In one embodiment: The second disk body is designed as a fixed support structure, on which not only an integrating sphere is fixedly installed, but also a seat ring of the rotating assembly is fixedly installed. Such a design ensures the stability and accuracy of the integrating sphere and the rotating assembly during the testing process. At the same time, the first disk body is designed as a hollow structure, and this design cleverly leaves the movement space for the integrating sphere during universal angular adjustment, enabling the integrating sphere to perform multi-angle illumination tests without obstruction. In addition, in order to ensure a stable light source provided by the integrating sphere while avoiding interference from external light on the test environment, a light shield is provided between the integrating sphere and the second disk body. The light shield can effectively block external light, ensuring that the illumination conditions of the test environment are only provided by the integrating sphere, thereby improving the accuracy and reliability of the test.

[0017] In one embodiment: In the specific implementation of the macro movement adjustment mechanism, it includes a solid frame as the support basis of the entire mechanism. Around the frame, at least three feed components are arranged in an annular array, and these feed components can output precise feed actions. The connecting frame, as the connecting component between the macro movement adjustment mechanism and the fine adjustment mechanism, is designed to be able to receive the feed actions from at least three feed components simultaneously. When these feed actions act on the connecting frame in a coordinated manner, the connecting frame will generate a macroscopic universal angular adjustment, that is, the angle can be adjusted in multiple directions.

[0018] Furthermore, the first disk body of the fine adjustment mechanism is fixedly arranged on the connecting frame. In this way, the testing mechanism (including the integrating sphere, the rotating assembly, the transmissive standard color plate target, etc.) is stably connected to the macro movement adjustment mechanism through the fine adjustment mechanism. This design not only ensures the stability of the testing mechanism during the macro movement adjustment process, but also enables the fine adjustment mechanism to perform more precise angle and position adjustments on this basis.

[0019] In one embodiment: In the feeding assembly, the second motor serves as the power source and is firmly fixed to the frame. The second motor transmits power through driving the second transmission belt, and the second transmission belt further drives the rocker arm to rotate. Here, the rocker arm is connected to the frame by means of hinge, ensuring that it can freely rotate around the hinge point.

[0020] In one embodiment: The storage component includes a truss, a moving connection table that is slidably fitted on the truss and is used to fix the endoscope, a first motor fixed on the truss, and a first transmission belt driven by the first motor, and the first transmission belt drives the position adjustment of the moving connection table.

[0021] In one embodiment: It further includes a computer terminal, which is used to receive the photos taken by the black-and-white camera and is also used to control all the electrical components in the macro motion adjustment mechanism and the testing mechanism. The storage component, the black-and-white camera, and the macro motion adjustment mechanism are all arranged on the workbench, and the computer terminal is mounted on the workbench.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The design of the rotating component enables the transmissive standard color plate target to rotate flexibly, simulating the test scenarios at different angles. The topological deformation unit realizes the precise control of the curved surface shape of the transmissive standard color plate target through the annular array layout of the first servo electric cylinder, expanding the coverage of the test. The coordinated work of the micro motion adjustment mechanism and the macro motion adjustment mechanism enables the testing mechanism to achieve fine and macroscopic angle and position adjustments in multiple directions, meeting the complex test requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of one perspective of the whole machine of the present invention;

[0025] Figure 2 It is a schematic diagram of another perspective of the whole machine of the present invention;

[0026] Figure 3 It is a three-dimensional schematic diagram of the storage component and the black-and-white camera of the present invention;

[0027] Figure 4 It is a three-dimensional schematic diagram of the storage component, the black-and-white camera, the macro motion adjustment mechanism and the testing mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged view of area A (showing details of the feeding component);

[0029] Figure 6 Stereoscopic schematic diagram of the test mechanism of the present invention;

[0030] Figure 7 Stereoscopic schematic diagram of the rotating component, integrating sphere and fine adjustment mechanism in the test mechanism of the present invention;

[0031] Figure 8 Stereoscopic schematic diagram of the fine adjustment mechanism of the present invention;

[0032] Figure 9 Schematic diagram of the curved surface deformation of the transmissive standard color plate target of the present invention.

[0033] Reference numerals: 1, placing component; 101, truss; 102, first motor; 103, first transmission belt; 104, moving connection table; 2, black and white camera; 3, macro movement adjustment mechanism; 301, feeding component; 3011, second motor; 3012, second transmission belt; 3013, rocker arm; 302, frame; 303, connecting arm; 304, connecting frame; 4, test mechanism; 401, rotating component; 4011, third motor; 4012, gear; 4013, gear ring; 4014, seat ring; 4015, rotating frame; 4016, topological deformation unit; 402, transmissive standard color plate target; 403, integrating sphere; 404, fine adjustment mechanism; 4041, first disk body; 4042, second disk body; 4043, second servo cylinder; 4044, universal joint coupling; 405, light shield; 5, workbench; 6, computer terminal. Detailed implementation manners

[0034] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below;

[0035] Embodiment: The literature "Wang Yunlong. Research on Qualitative Detection Technology for Quality Control of Optical Performance of Medical Endoscopes [D]. Southern Medical University, 2015." discloses a testing method. By using red, blue, and green color comparison cards to compare with the image color, the detection and judgment of the color difference problem of the endoscope are realized. On the one hand, if the detection angle in the detection mode is fixed, it may not be able to cover all possible angle changes of the endoscope in actual use. On the other hand, the actual human body structure is complex and diverse, including many curved body parts. The surface shapes and curvature radii of these curved body parts are different, which puts higher requirements on the detection angle and illumination conditions of the endoscope. Since the standard color plate target is flat, it cannot simulate the complex structure of the curved body parts of the human body. Therefore, please refer to Figures 1-9 , this specific embodiment will provide a performance detection device for the cold light source of a medical endoscope to solve the above technical problems: including a placement component 1 in the traditional technology for placing and adjusting the orientation of the endoscope, a black and white camera 2 connected to the endoscope and responsible for taking pictures, and a testing mechanism 4 for performing color difference tests on the endoscope. The improvement point of this solution is that the testing mechanism 4 includes:

[0036] A rotating component 401, which is connected to and drives the flexible transmissive standard color plate target 402 to rotate, and controls the curved surface shape of the transmissive standard color plate target 402 through a topological deformation unit 4016; wherein the transmissive standard color plate target 402 uses a flexible material with a high transparency rate as the base material, and different colors are coated with evenly distributed area blocks on it;

[0037] An integrating sphere 403 for providing light source to the transmissive standard color plate target 402 (to make the image gray value of the white area reach 255);

[0038] A fine adjustment mechanism 404 that drives the integrating sphere 403, the rotating component 401, and the transmissive standard color plate target 402 to perform micro-universal angle adjustment relative to the endoscope;

[0039] The performance detection device further includes a macro adjustment mechanism 3, and the macro adjustment mechanism 3 drives the testing mechanism 4 to perform macro-universal angle adjustment relative to the endoscope.

[0040] In this solution, when in use, the endoscope needs to be fixed on the placement component 1 first, and its shooting end is connected to the black and white camera 2. The detection end of the endoscope is aligned with the transmissive standard color plate target 402, and the integrating sphere 403 is turned on. Subsequently, the topological deformation unit 4016 controls and adjusts the curved surface shape of the transmissive standard color plate target 402 to simulate different human curved surface structures. During this process, the area of some color region blocks of the transmissive standard color plate target 402 will be stretched or compressed, thereby simulating different color concentration effects and further improving the detection effect. The rotating component 401 can drive the transmissive standard color plate target 402 to rotate relative to the endoscope. By rotating the transmissive standard color plate target 402 with different curved surface shapes for one week, it can be determined whether there is a color difference phenomenon in the endoscope at different angles. Externally, the macro motion adjustment mechanism 3 drives the test mechanism 4 to perform large-range spatial orientation adjustment relative to the endoscope, and the micro motion adjustment mechanism 404 can finely adjust the spatial orientation and angle of the transmissive standard color plate target 402 relative to the endoscope, further avoiding missed detections, misjudgments or false negatives.

[0041] Specifically: The design principle of this detection device is to comprehensively simulate different scenarios of the endoscope in actual use by dynamically adjusting the curved surface shape and angle of the transmissive standard color plate target 402, as well as the light source provided by the integrating sphere 403. The flexible design of the transmissive standard color plate target 402 enables it to simulate human curved surface structures, and through the precise control of the topological deformation unit 4016, flexible changes in the target curved surface shape can be achieved. The integrating sphere 403 serves as a standard light source to ensure consistent lighting conditions in the test environment and improve the accuracy and repeatability of the test. The combined use of the micro motion adjustment mechanism 404 and the macro motion adjustment mechanism 3 enables the test mechanism 4 to perform fine spatial orientation and angle adjustment relative to the endoscope, thereby covering all possible observation angles of the endoscope and ensuring the comprehensiveness and accuracy of color difference detection.

[0042] It can be understood that the above solution can significantly improve the color difference detection efficiency and accuracy of the cold light source of medical endoscopes. By driving the transmissive standard color plate target 402 to rotate through the rotating component 401 and combining with the control of the curved surface shape of the topological deformation unit 4016, various complex human curved surface structures can be simulated, thus more realistically reflecting the imaging effect of the endoscope in actual use. The integrating sphere 403 provides a stable and uniform light source to ensure the consistency of the test environment, making the test results more reliable. The precise adjustment capabilities of the micro motion adjustment mechanism 404 and the macro motion adjustment mechanism 3 enable the test mechanism 4 to flexibly adjust the spatial orientation and angle of the transmissive standard color plate target 402 relative to the endoscope, thereby achieving comprehensive detection of the color difference phenomenon of the endoscope. This detection device not only improves the quality control level of medical endoscopes, but also provides a safer and more accurate visual guarantee for doctors' surgical operations.

[0043] In the technical solution provided in this embodiment, please refer to Figures 6-7 : The rotating assembly 401 includes a hollow seat ring 4014. A third motor 4011 is provided on the seat ring 4014. The third motor 4011 drives a rotating gear 4012. The gear 4012 meshes with a toothed ring 4013. The toothed ring 4013 is rotatably fitted in the seat ring 4014. A hollow rotating frame 4015 is fixedly connected to the end face of the toothed ring 4013. A transmissive standard color plate target 402 is fixedly provided inside the rotating frame 4015; the hollow part of the seat ring 4014 serves as a light source passage with respect to the integrating sphere 403.

[0044] Specifically: The third motor 4011 serves as a power source. The rotational power is transmitted to the toothed ring 4013 through the gear 4012, and the toothed ring 4013 then drives the rotating frame 4015 and the transmissive standard color plate target 402 to rotate together. This transmission method has the advantages of compact structure, accurate transmission, and stable operation. At the same time, the design of the hollow seat ring 4014 not only reduces the weight of the entire rotating assembly 401, but also provides a passage for the light source of the integrating sphere 403, enabling the light source to irradiate the transmissive standard color plate target 402 smoothly, ensuring consistent lighting conditions in the test environment. This design principle not only meets the functional requirements of the rotating assembly 401, but also considers the lighting conditions of the test environment, reflecting the comprehensiveness and practicality of the design.

[0045] It can be understood that in the above solution: Driven by the third motor 4011, the transmissive standard color plate target 402 can rotate, thereby simulating different observation angles of the endoscope in actual use. Because different observation angles may produce different color difference effects. At the same time, the design of the hollow seat ring 4014 enables the light source of the integrating sphere 403 to irradiate the transmissive standard color plate target 402 smoothly, ensuring consistent and stable lighting conditions in the test environment. It not only improves the accuracy and reliability of the test, but also provides a safer and more accurate visual guarantee for the doctor's surgical operation.

[0046] In the technical solution provided in this embodiment, please refer to Figure 7 : The topological deformation unit 4016 is a number of first servo cylinders arranged in an annular array. The cylinder body of the first servo cylinder is fixedly provided on the rotating frame 4015. The piston rod of the first servo cylinder is adhesively connected to the outer edge of the transmissive standard color plate target 402. The first servo cylinders arranged in an annular array are equivalent to multiple piston rods being adhesively connected to the outer edge of the transmissive standard color plate target 402 evenly; when the piston rods of any one or more first servo cylinders perform telescopic movements, the curved surface shape of the transmissive standard color plate target 402 can be controlled.

[0047] Specifically: The design principle of the topological deformation unit 4016 is mainly based on the precise control of the servo cylinder and the arrangement of the circular array. In this embodiment, multiple servo cylinders are arranged in a circular array on the rotating frame 4015, and the piston rod is connected to the outer edge of the transmissive standard color plate target 402 by adhesion. In this way, when the piston rod of the servo cylinder performs telescopic movement, it will exert a tensile or compressive effect on the transmissive standard color plate target 402, thereby changing its surface shape. Due to the precise control ability of the servo cylinder and the arrangement of the circular array, the change of this surface shape can be very precise and flexible.

[0048] It should be noted that since the piston rod is adhesively connected to the outer edge of the target, the telescopic movement of the piston rod will directly drive the transmissive standard color plate target 402 to deform. By controlling the telescopic amount and speed of different servo cylinders, precise and flexible adjustment of the shape of the transmissive standard color plate target 402 can be achieved. This mechanism effectively solves the problem of how to flexibly and dynamically control and adjust the surface shape of the transmissive standard color plate target 402. By adjusting the surface shape, different curved surface body test scenarios can be simulated, thereby detecting the color deviation of the endoscope.

[0049] Furthermore, as Figure 9 shown, this embodiment provides several different simulation modes (for the convenience of clear demonstration, the transmissive standard color plate target 402 is square and has only two color intervals):

[0050] 1) As shown in part (A) of Figure 9 , the topological deformation unit 4016 is not activated, and the transmissive standard color plate target 402 is in a flat shape, serving the test function of the traditional device; it is used for the preliminary test of the basic color recognition ability of the endoscope.

[0051] 2) As shown in part (B) of Figure 9 , activate a certain topological deformation unit 4016 to cause the flat transmissive standard color plate target 402 to generate a partial curved surface shape, and the specific size is determined by the position, telescopic direction and feeding degree of the activated topological deformation unit 4016; in this mode, the color deviation recognition ability of the endoscope for the local curved surface target can be detected. It is suitable for simulating the local curved surface tissue that the endoscope may encounter during the operation, and evaluating its recognition and processing ability of the curved surface color deviation.

[0052] 3) As shown in Figure 9As shown in part (C), multiple topological deformation units 4016 are activated to make the flat-shaped transmissive standard color plate target 402 generate an irregular curved surface shape, and the specific size is determined by the position, telescopic direction, and feeding degree of the activated topological deformation units 4016; in this mode, the color deviation recognition ability of the endoscope for complex curved surface targets can be comprehensively detected, including the recognition of different curved surface angles, curvatures, and color boundaries. It is applicable to simulating complex surgical environments, such as tumor resection, organ transplantation, etc., which involve various curved surface shapes and color changes.

[0053] 4) As Figure 9 As shown in part (D), all topological deformation units 4016 are activated, and the feeding direction and spacing are the same, so that the entire transmissive standard color plate target 402 generates large-scale regular changes. In this mode, the color deviation recognition ability of the endoscope for targets with large-scale and regular curved surface changes can be detected. It is applicable to evaluating the tracking and color recognition ability of the endoscope for continuous curved surface changes in a dynamic surgical environment, such as intestinal examination, vascular surgery, etc.

[0054] Through these four different simulation modes, the color deviation recognition ability of the endoscope for curved surface targets can be comprehensively evaluated. From the flat mode to the large-scale regular change mode, the complexity and challenge of the test are gradually increased, thus more accurately reflecting the performance of the endoscope in the actual surgical environment. This precise and dynamic curved surface shaping adjustment technology provides strong support for the performance detection of the endoscope.

[0055] Furthermore, the transmissive standard color plate target 402 needs to use a flexible material with a high transparency rate as the substrate, and it needs to be elastic to adapt to the adjustment of its curved surface shape by the topological deformation units 4016. On the substrate, there are area blocks coated with different colors and evenly distributed. These color area blocks represent different color standards and are used to calibrate or verify various color measuring instruments, such as spectral colorimeters, color difference meters, colorimeters, etc.; the topological deformation units 4016 can simulate different human curved surface structures by precisely controlling the curved surface shape of the transmissive standard color plate target 402. In this process, the area of some color area blocks on the target will be stretched or compressed, thereby simulating different color concentration effects. This dynamic adjustment ability makes the detection process closer to the actual surgical environment and improves the accuracy and reliability of the detection.

[0056] Preferably, the material of the transmissive standard color plate target 402 is any one of the following:

[0057] (1) Optical grade polyester film: A high-transparency plastic film with good light transmittance and flexibility. It is often used to manufacture optical components and display devices, etc., so it is also suitable as the substrate of the transmissive standard color plate target 402.

[0058] (2) Polycarbonate: A high-performance thermoplastic with excellent transparency, impact strength, and weather resistance. It also has good flexibility and can adapt to a certain degree of curved surface deformation. Therefore, polycarbonate is also a potential material option for the transmissive standard color plate target 402.

[0059] (3) Polyimide film: A high-performance polymer film with extremely high heat resistance, chemical stability, and mechanical strength. Although its flexibility is relatively poor, in some endoscopic inspections that need to work in high-temperature or strong-corrosion environments, polyimide film may be a more suitable choice.

[0060] It can be understood that in the above solution: The topological deformation unit 4016 plays an important functional role in the performance detection device of the medical endoscope cold light source. By precisely controlling the curved surface shape of the transmissive standard color plate target 402, various complex human curved surface structures can be simulated, thus more realistically reflecting the imaging effect of the endoscope in actual use. This function is crucial for comprehensively detecting the color difference phenomenon and imaging quality of the endoscope. At the same time, the flexibility and precision of the topological deformation unit 4016 also enable the entire performance detection device to adapt to the test requirements of different models and specifications of endoscopes. In addition, due to the high reliability and stability of the servo cylinder, the topological deformation unit 4016 can also ensure the stability and repeatability of the test process, providing a safer and more accurate visual guarantee for the doctor's surgical operation.

[0061] To solve the problem of fixed detection angle, in the technical solution provided in this embodiment, please refer to Figures 7-8 : The fine adjustment mechanism 404 includes a first disk body 4041, a second disk body 4042, and a second servo cylinder 4043 arranged in an annular array between the two. The cylinder body and piston rod of the second servo cylinder 4043 are both universally hinged between the first disk body 4041 and the second disk body 4042 through a universal joint coupling 4044.

[0062] Specifically: The design principle of the fine adjustment mechanism 404 is mainly based on the precise control of the second servo cylinder 4043 and the universal joint coupling 4044. As an electric actuator capable of precisely controlling displacement and speed, the second servo cylinder 4043 can achieve precise control of the telescopic movement of the piston rod through the control system. The universal joint coupling 4044 is a mechanical component that can transmit force and motion and allow a certain angular deviation between two shafts. In this embodiment, the second servo cylinders 4043 are arranged in an annular array between the first disk body 4041 and the second disk body 4042, and the universal joint coupling 4044 is used to achieve the universal joint connection between the cylinder block and the piston rod. In this way, when the piston rod of the second servo cylinder 4043 performs telescopic movement, the force and motion will be transmitted to the first disk body 4041 or the second disk body 4042 through the universal joint coupling 4044, so as to achieve the micro displacement and angle adjustment of the transmissive standard color plate target 402. Due to the precise control ability of the second servo cylinder 4043 and the universal joint function of the universal joint coupling 4044, this kind of micro adjustment can be very precise and flexible.

[0063] It can be understood that in the above solution: The fine adjustment mechanism 404 plays a crucial role in the performance detection device of the medical endoscope cold light source. By precisely controlling the spatial orientation and angle of the transmissive standard color plate target 402 relative to the endoscope, a comprehensive detection of the color difference phenomenon of the endoscope can be achieved. This function is crucial for ensuring the imaging quality and color restoration degree of the endoscope in actual use. At the same time, the flexibility and precision of the fine adjustment mechanism 404 also enable the entire performance detection device to adapt to the test requirements of different models and specifications of endoscopes. In addition, due to the high reliability and stability of the second servo cylinder 4043, the fine adjustment mechanism 404 can also ensure the stability and repeatability of the test process, providing a safer and more accurate visual guarantee for the doctor's surgical operation.

[0064] In the technical solution provided in this embodiment, please refer to Figures 6-8 : A integrating sphere 403 and a seat ring 4014 of the rotating assembly 401 are fixedly arranged on the second disk body 4042. The first disk body 4041 is hollow to leave a movement space for the integrating sphere 403 during universal angle adjustment; A light shield 405 is arranged between the integrating sphere 403 and the second disk body 4042.

[0065] Specifically, the second disk body 4042 serves as a fixed support structure, ensuring the stability and accuracy of the integrating sphere 403 and the rotating assembly 401. The hollow design of the first disk body 4041 provides sufficient movement space for the integrating sphere 403, enabling it to perform illumination tests at multiple angles. The setting of the light shield 405 effectively blocks external light, ensuring the consistency and stability of the illumination conditions in the test environment. It not only has the function of precisely adjusting the spatial orientation and angle of the transmissive standard color plate target 402 relative to the endoscope, but also improves the accuracy and reliability of the test through a stable support structure, flexible movement space, and effective light shielding design. The stable support of the integrating sphere 403 and the effective light shielding of the light shield 405 ensure the consistency and stability of the illumination conditions in the test environment, providing strong support for the color difference phenomenon test of the endoscope. At the same time, the hollow design of the first disk body 4041 enables the integrating sphere 403 to perform illumination tests at multiple angles, further improving the comprehensiveness and accuracy of the test.

[0066] In the technical solution provided in this embodiment, please refer to Figures 2-5 : The macro motion adjustment mechanism 3 includes a frame 302 and at least three feed components 301 arranged in a circular array outside the frame 302. The feed components 301 output a feed action to the connecting frame 304. When the connecting frame 304 receives at least three feed actions simultaneously, macro universal angle adjustment can be achieved. A first disk body 4041 of the micro motion adjustment mechanism 404 is fixedly provided on the connecting frame 304, thereby achieving the fixation between the test mechanism 4 and the macro motion adjustment mechanism 3.

[0067] Furthermore, a first disk body 4041 of the micro motion adjustment mechanism 404 is fixedly provided on the connecting frame 304. In this way, the test mechanism 4 (including the integrating sphere 403, the rotating assembly 401, the transmissive standard color plate target 402, etc.) is firmly connected to the macro motion adjustment mechanism 3 through the micro motion adjustment mechanism 404. This design not only ensures the stability of the test mechanism 4 during macro motion adjustment, but also enables the micro motion adjustment mechanism 404 to perform more precise angle and position adjustments on this basis.

[0068] Specifically: The design principle of the macro motion adjustment mechanism 3 is mainly based on the idea of multi-point support and coordinated feeding. Through the circular array arrangement of at least three feed components 301, it is ensured that the connecting frame 304 can obtain stable support and driving force in multiple directions. When these feed components 301 work in a coordinated manner, the resultant force they form will push the connecting frame 304 for universal angle adjustment. At the same time, since the connecting frame 304 is fixedly connected to the first disk body 4041 of the micro motion adjustment mechanism 404, this macroscopic angle adjustment will be directly transmitted to the test mechanism 4, realizing precise control of the endoscope test environment.

[0069] It can be understood that in the above solution: The macro-motion adjustment mechanism 3 plays a crucial role in the performance detection device of the medical endoscope cold light source. Through precise universal angle adjustment, it can simulate various complex angles and position conditions that the endoscope may encounter during actual use, thus providing a more realistic and comprehensive environment for testing. At the same time, the close combination with the micro-motion adjustment mechanism 404 enables the entire test system to perform precise angle and position adjustments at both the macroscopic and microscopic levels, greatly improving the accuracy and flexibility of the test. In addition, the stable support and precise adjustment ability of the macro-motion adjustment mechanism 3 also provide a safer and more accurate visual guarantee for the doctor's surgical operation.

[0070] It can be understood that the micro-motion adjustment mechanism 404 provides microscopic universal angle adjustment and can achieve fine adjustment of the test piece (such as an endoscope). This fine adjustment ability helps to eliminate test errors caused by small angle deviations and improve the test accuracy. The macro-motion adjustment mechanism 3, on the other hand, provides macroscopic universal angle adjustment and can quickly adjust the approximate position and direction of the test piece. By combining the coarse adjustment of the macro-motion adjustment mechanism 3 and the fine adjustment of the micro-motion adjustment mechanism 404, more accurate test positioning can be achieved. The two adjustment mechanisms cooperate with each other to simulate various angle and position changes that the test piece may encounter during actual use. This flexibility helps to comprehensively evaluate the performance and stability of the test piece.

[0071] Exemplarily, in endoscope detection, the test piece (endoscope) may need to enter narrow spaces at different angles and positions. Through the cooperation of the macro-motion and micro-motion adjustment mechanism 404, these complex usage scenarios can be simulated, thus more realistically reflecting the performance of the endoscope. The combination of the fine adjustment ability of the micro-motion adjustment mechanism 404 and the rapid positioning ability of the macro-motion adjustment mechanism 3 can significantly shorten the test preparation time. The tester does not need to manually adjust the position and angle of the test piece, thus improving the test efficiency.

[0072] In the technical solution provided in this embodiment, please refer to Figures 4-5 : The feeding assembly 301 includes a second motor 3011 fixedly arranged on the frame 302, a second transmission belt 3012 driven by the second motor 3011, and a rocker arm 3013 driven by the second transmission belt 3012 to rotate. The rocker arm 3013 is hinged to the frame 302; one end and the other end of the connecting arm 303 are universally hinged to the connecting frame 304 and the rocker arm 3013 through spherical couplings.

[0073] Specifically, in order to convert the rotational motion of the rocker arm 3013 into the feeding action of the connecting frame 304, a connecting arm 303 is introduced. One end of the connecting arm 303 is universally hinged to the connecting frame 304 through a spherical coupling, and the other end is also universally hinged to the rocker arm 3013 through a spherical coupling. This design of the spherical coupling enables the connecting arm 303 to flexibly transmit force and motion in multiple directions, thus ensuring the accuracy and stability of the feeding action. When the second motor 3011 is started, it drives the rocker arm 3013 to rotate through the second transmission belt 3012. The rotational motion of the rocker arm 3013 is then transmitted to the connecting frame 304 through the connecting arm 303, enabling the connecting frame 304 to generate feeding actions in multiple directions. Since at least three feeding components 301 are arranged in a circular array outside the frame 302 and act on the connecting frame 304 simultaneously, the connecting frame 304 can achieve macroscopic universal angle adjustment.

[0074] It can be understood that in the above solution: The feeding component 301 can not only provide stable driving force and accurate transmission ratio, but also, through the universal hinge function of the spherical coupling, achieve the feeding action of the connecting frame 304 in multiple directions. This design not only improves the flexibility and accuracy of the macro motion adjustment mechanism 3, but also provides a more realistic and comprehensive test environment for the entire test system.

[0075] In the technical solution provided in this embodiment, please refer to Figures 1-4 : The storage component 1 includes a truss 101, a movable connecting table 104 that is slidably fitted on the truss 101 and is used to fix the endoscope, a first motor 102 fixed on the truss 101, and a first transmission belt 103 driven by the first motor 102. The first transmission belt 103 drives the position adjustment of the movable connecting table 104.

[0076] In the technical solution provided in this embodiment, please refer to Figures 1-2 : It further includes a computer terminal 6. The computer terminal 6 is used to receive the photos taken by the black and white camera 2 and is also used to control all the electrical components in the macro motion adjustment mechanism 3 and the test mechanism 4. The storage component 1, the black and white camera 2, and the macro motion adjustment mechanism 3 are all arranged on the workbench 5, and the workbench 5 is equipped with a computer terminal 6.

[0077] In this solution, all the electrical components of the entire device are powered by the commercial power supply; specifically, the electrical components of the entire device are conventionally electrically connected to the commercial power output port through devices such as relays, transformers, and button panels to meet the power supply requirements of all the electrical components of this device.

[0078] Furthermore, for the performance detection device of the medical endoscope cold light source disclosed in this specific embodiment, the electrical components described in the context and the mechanisms composed of them can all execute the conventional PID controller algorithm (Proportion Integral Differential) through the controller to achieve the control of output parameters such as the corresponding operating start-stop time interval, rotation speed, power, etc., that is, to enable the mechanism to execute the predetermined or preset action operation mode according to a certain function or motion trajectory.

[0079] Summarizing, aiming at the related problems in the traditional technology, based on the performance detection device of the medical endoscope cold light source provided above, this specific embodiment adopts the following technical means or features to achieve the solution:

[0080] Dynamically adjust the spatial orientation of the transmissive standard color plate target 402: The macro motion adjustment mechanism 3 realizes the macroscopic universal angle adjustment of the connecting frame 304 (on which the micro motion adjustment mechanism 404 and the transmissive standard color plate target 402 are fixedly installed) through the annular array arrangement and coordinated work of at least three feed components 301. This design allows the transmissive standard color plate target 402 to perform dynamic spatial orientation adjustment relative to the stationary medical endoscope in multiple directions. The second motor 3011 in the feed component 301 drives the second transmission belt 3012 to drive the rocker arm 3013 to rotate, and the rocker arm 3013 then converts the rotational motion into the feed action of the connecting frame 304 through the connecting arm 303 and the spherical coupling. Due to the universal joint function of the spherical coupling, the connecting frame 304 can achieve precise displacement and angle adjustment in multiple directions.

[0081] Through the design of this macro motion adjustment mechanism 3, the transmissive standard color plate target 402 can flexibly change its spatial orientation relative to the medical endoscope, thereby avoiding missed detections, misjudgments or false negatives during the detection process. For example, when it is necessary to detect the color performance of the endoscope at different angles of the target, the orientation of the target can be easily adjusted to meet the test requirements.

[0082] Flexibly and dynamically control the adjustment of the curved surface shape of the transmissive standard color plate target 402: Fine and dynamic adjustment of the curved surface shape of the transmissive standard color plate target 402 can simulate different curved surface shapes, so that the detection mode can detect the color deviation of the endoscope from the curved surface target. This design improves the flexibility and accuracy of the detection, enabling the system to more comprehensively evaluate the performance of the endoscope.

[0083] The above-described embodiments merely represent the implementation modes of the relevant actual applications of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A performance testing device for a cold light source for a medical endoscope, comprising a storage component (1) for placing and adjusting the position of an endoscope, a black-and-white camera (2) connected to the endoscope and responsible for taking pictures, and a testing mechanism (4) for performing a color difference test on the endoscope, characterized in that: The testing mechanism (4) comprises: A rotating component (401) is connected to and drives a flexible transmission-type standard color plate target (402) to rotate, and controls the curved surface modeling of the transmission-type standard color plate target (402) through a topological deformation unit (4016); An integrating sphere (403) used for providing a light source to the transmission type standard color plate target (402); A micro-adjustment mechanism (404) for driving the integrating sphere (403), the rotating assembly (401), and the transmission-type standard color plate target (402) to perform micro-universal angle adjustment relative to the endoscope; The performance detection device further comprises a macro-motion adjustment mechanism (3), wherein the macro-motion adjustment mechanism (3) drives the testing mechanism (4) to perform macro-universal angle adjustment relative to the endoscope; The topological deformation unit (4016) is a plurality of first servo electric cylinders arranged in a circular array, the piston rods of the first servo electric cylinders being connected to the transmission-type standard color plate target (402); when the piston rods of any one or more of the first servo electric cylinders perform telescopic movement, the curved surface shape of the transmission-type standard color plate target (402) can be controlled and adjusted; The micro-motion adjustment mechanism (404) comprises a first disk body (4041), a second disk body (4042), and a second servo electric cylinder (4043) arranged in a ring array between the first disk body (4041) and the second disk body (4042); the cylinder body and the piston rod of the second servo electric cylinder (4043) are universally hinged between the first disk body (4041) and the second disk body (4042); The macro-motion adjustment mechanism (3) comprises a frame (302) and at least three feeding components (301) arranged in a ring array outside the frame (302); the feeding components (301) output a feeding action to a connecting frame (304); and when the connecting frame (304) receives at least three feeding actions at the same time, the macro-universal angle adjustment can be achieved; The feeding assembly (301) comprises a second motor (3011) fixedly mounted on the frame (302), a second transmission belt (3012) driven by the second motor (3011), and a rocker arm (3013) driven to rotate by the second transmission belt (3012), wherein the rocker arm (3013) is hingedly connected to the frame (302); One end and the other end of the connecting arm (303) are universally hinged to the connecting frame (304) and the rocker arm (3013).

2. The performance detection device according to claim 1, characterized in that: The rotating assembly (401) comprises a seat ring (4014), and a third motor (4011) drives a rotating frame (4015) to rotate, wherein the transmission type standard color plate target (402) is fixedly arranged in the rotating frame (4015).

3. The performance detection device according to claim 2, characterized in that: The integrating sphere (403) and the rotating assembly (401) are fixedly mounted on the second disk body (4042); a light shield (405) is arranged between the integrating sphere (403) and the second disk body (4042).

4. The performance detection device according to claim 3, characterized in that: The first disk body (4041) of the micro-adjustment mechanism (404) is fixedly mounted on the connecting frame (304).

5. The performance detection device according to claim 4, characterized in that: The storage assembly (1) comprises a truss (101), a mobile connection platform (104) slidably engaged with the truss (101) and used to fix the endoscope, a first motor (102) fixed to the truss (101), and a first transmission belt (103) driven by the first motor (102), wherein the first transmission belt (103) drives the mobile connection platform (104) to adjust its position.

6. The performance detection device according to claim 3, characterized in that: It also includes a computer terminal (6), which is used to receive the photos taken by the black and white camera (2) and is also used to control all electrical components in the macro-adjustment mechanism (3) and the test mechanism (4).

Images