Performance detection device for cold light source of medical endoscope

Abstract

The invention discloses a performance detection device for a cold light source of a medical endoscope. The invention relates to the technical field of medical endoscopes. A stable object placing assembly is constructed and used for accurately placing and adjusting the direction of the endoscope. The shooting end of the endoscope is connected with the black and white camera through a data line, so that the stability and definition of image transmission are ensured. The testing mechanism serves as the core of the scheme. Through the design of the rotating assembly, the transmission-type standard color plate target can rotate flexibly, and test scenes at different angles are simulated. According to the topological deformation unit, through annular array type arrangement of the first servo electric cylinders, accurate control over the curved surface modeling of the transmission type standard color plate target is achieved, and the coverage of testing is expanded. Through cooperative work of the micro-motion adjusting mechanism and the macro-motion adjusting mechanism, the testing mechanism can achieve fine and macro angle and position adjustment in multiple directions, and the complex testing requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of medical endoscopes, in particular to an optical testing technology of medical endoscopes, and in particular to a performance testing device for a cold light source of a medical endoscope. Background Art

[0002] Endoscope is a precision optical instrument widely used in the medical field, especially in minimally invasive surgery. It transmits images of the human body to the doctor through the optical and mechanical structure inside the slender tube, allowing the doctor to visually observe the patient's internal organs and tissues, so as to make accurate diagnosis and treatment. However, the endoscope may have color deviation problems during use. This deviation may be caused by many factors, such as the manufacturing accuracy 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 lesions, but may also lead to misjudgment, resulting in increased surgical risks and patient safety hazards. Therefore, it is particularly important to accurately detect and evaluate the color deviation of medical endoscopes.

[0004] The document "Wang Yunlong. Research on qualitative detection technology for quality control of optical performance of medical endoscopes [D]. Southern Medical University, 2015." discloses a test method, which detects and judges the color difference problem of endoscopes by using red, blue and green color comparison cards and image color comparison; Chinese invention patent CN118706411A discloses a device and method for detecting multiple color deviations of medical endoscopes (published on 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 transmission-type standard color plate target is used as the observation target. The target consists of multiple color areas, and each color area has the same transmittance, thereby ensuring the accuracy and reliability of color detection. During the detection process, the image of the transmission-type 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 grayscale value changes of each color area before and after the endoscope to be tested is placed.

[0005] However, the above conventional technology has two technical problems: (1) When the endoscope is actually in use, the detection angle between it and the irradiated object changes dynamically. This dynamic change is due to the flexibility of the endoscope and the need for doctors to adjust the angle and position of the endoscope according to different observation needs during surgery. In contrast, when the detection mode is "relatively still between the endoscope and the standard color plate target", due to the fixed detection angle in the detection mode, 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 detection. 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 certain extreme angles, the optical performance of the endoscope may change, resulting in misjudgment or missed judgment of color deviation.

[0006] (2) The actual human body structure is complex and diverse, including many curved parts. The surface shapes and curvature radii of these curved parts are different, which puts higher requirements on 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 parts of the human body. Therefore, the endoscope may not fully expose its detection ability of curved parts in actual use in the detection mode, resulting in color deviations at certain angles that cannot be detected. Even if the detection mode can detect the color deviation of the endoscope for flat targets, since these angles and lighting conditions are not optimized for curved parts, the accuracy and reliability of the detection results may not be directly applied to actual human body inspections. For example, on curved parts, the endoscope may need to detect at different incident angles to obtain clear images and accurate color information.

[0007] To this end, the present invention proposes a performance detection device for a medical endoscope cold light source. Summary of the invention

[0008] In view of this, the embodiment of the present invention hopes to provide a performance detection device for a cold light source of a medical endoscope to solve or alleviate the technical problems existing in the prior art, namely: (1) How to dynamically adjust the spatial orientation of the transmission standard color plate target relative to a stationary medical endoscope to avoid missed detection, misjudgment, or missed judgment; (2) How to flexibly and dynamically control and adjust the curved surface shape of the transmission standard color plate target so that the detection mode can detect the color deviation of the endoscope to the curved surface target; The technical solution of the present invention is implemented as follows: Performance detection device of cold light source for medical endoscope: During implementation, first construct a placement component for placing and adjusting the orientation of the endoscope. The shooting end of the endoscope is connected to the black and white camera via a data cable to ensure the stability and clarity of image transmission. The testing mechanism is the core of this solution, and its rotating component is connected and drives the flexible transmission-type standard color plate target to rotate by mechanical or electromagnetic means. The transmission-type standard color plate target is made of a flexible material with high transparency, and the surface is coated with area blocks with uniformly distributed colors. The integrating sphere is used as a light source and is precisely installed on one side of the transmission-type standard color plate target to ensure sufficient and uniform illumination. The micro-adjustment mechanism realizes small angle adjustments of the integrating sphere, the rotating component and the transmission-type standard color plate target relative to the endoscope. In addition, the macro-adjustment mechanism is responsible for the large-range spatial orientation adjustment of the testing mechanism relative to the endoscope; In one embodiment, in the specific implementation of the rotating assembly, the hollow seat ring not only serves as a supporting structure of the rotating assembly, but also provides space for the light source passage inside it. A third motor is installed on the seat ring, which generates rotating power through electric drive. The output shaft of the third motor is connected to the gear, and the gear starts to rotate under the drive of the motor. The gear is meshed with the ring gear, and the inner teeth of the ring gear match the outer teeth of the gear. The ring gear rotates and fits in the seat ring. The end face of the ring gear is fixedly connected with a hollow rotating frame, and the rotating frame is also designed as a hollow structure to reduce weight and facilitate light transmission. The transmission type 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 transmission type 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 passage for the light source provided by the integrating sphere, ensuring that the light source can be evenly irradiated on the transmission type standard color plate target.

[0009] In one embodiment, in the specific implementation of the topological deformation unit, a plurality of first servo electric cylinders arranged in a ring array are used to realize the control of the curved surface modeling of the transmission type standard color plate target. These first servo electric cylinders are precisely mounted on a rotating frame, their cylinder bodies are fixed, and the piston rods are adhered and connected to the outer edge of the transmission type standard color plate target. This arrangement of the ring array ensures that the outer edge of the transmission type standard color plate target is evenly adhered and connected with multiple piston rods, so that the precise control of the target curved surface modeling can be realized. When it is necessary to change the curved surface modeling of the transmission type standard color plate target, it is only necessary to send instructions to one or more first servo electric cylinders through the control system to make their piston rods perform telescopic movement. Since the piston rod is adhered and connected to the outer edge of the transmission type standard color plate target, the telescopic movement of the piston rod will directly drive the deformation of the target curved surface, thereby realizing the dynamic adjustment of the curved surface modeling.

[0010] In one embodiment, in the specific implementation of the micro-adjustment mechanism, a first disk, a second disk, and a second servo electric cylinder arranged in a circular array between the two are used to construct the micro-adjustment mechanism. The first disk and the second disk serve as the main supporting structures of the micro-adjustment mechanism, and a certain distance between them is maintained through precise processing and assembly. The second servo electric cylinder is evenly arranged between the first disk and the second disk to form a circular array. The cylinder body and piston rod of each second servo electric cylinder are universally articulated through a universal joint coupling. This design enables the second servo electric cylinder to produce small displacements and angle changes in multiple directions. When it is necessary to adjust the spatial orientation and angle of the transmission standard color plate target relative to the endoscope, it is only necessary to send instructions to the second servo electric cylinder through the control system to make it produce corresponding telescopic movement, thereby driving the first disk or the second disk to produce small displacements and angle changes, thereby achieving precise adjustment of the transmission standard color plate target.

[0011] In one embodiment, the second disk is designed as a fixed support structure, on which not only the integrating sphere but also the seat ring of the rotating assembly is fixed. Such a design ensures the stability and accuracy of the integrating sphere and the rotating assembly during the test. At the same time, the first disk is designed as a hollow structure, which cleverly leaves room for the integrating sphere to move during universal angle adjustment, so that the integrating sphere can perform multi-angle lighting tests without hindrance. In addition, in order to ensure that the integrating sphere provides a stable light source while avoiding interference of external light on the test environment, a light shield is also provided between the integrating sphere and the second disk. The light shield can effectively block external light and ensure that the lighting conditions of the test environment are only provided by the integrating sphere, thereby improving the accuracy and reliability of the test.

[0012] In one embodiment, in the specific implementation of the macro-adjustment mechanism, a stable frame is included as the support base of the entire mechanism. Around the frame, at least three feeding assemblies are arranged in a circular array, and these feeding assemblies can output precise feeding actions. The connecting frame, as a connecting component between the macro-adjustment mechanism and the micro-adjustment mechanism, is designed to be able to simultaneously receive feeding actions from at least three feeding assemblies. When these feeding actions act on the connecting frame in a coordinated manner, the connecting frame will produce a macroscopic universal angle adjustment, that is, the angle can be adjusted in multiple directions.

[0013] Furthermore, the first disk of the micro-adjustment mechanism is fixedly arranged on the connecting frame, so that the test mechanism (including the integrating sphere, the rotating assembly and the transmission standard color plate target, etc.) is firmly connected with the macro-adjustment mechanism through the micro-adjustment mechanism. This design not only ensures the stability of the test mechanism during the macro-adjustment process, but also enables the micro-adjustment mechanism to perform more precise angle and position adjustments on this basis.

[0014] In one embodiment, in the feeding assembly, the second motor is used as a power source and is firmly fixed on the frame. The second motor transmits power by 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 in an articulated manner, ensuring that it can rotate freely around the hinge point.

[0015] In one embodiment, the storage assembly includes a truss, a mobile connection platform that slides 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 mobile connection platform to adjust its position.

[0016] In one embodiment, a computer terminal is also included, which is used to receive the photos taken by the black and white camera and is also used to control all electrical components in the macro-motion adjustment mechanism and the test mechanism. The storage component, the black and white camera and the macro-motion adjustment mechanism are all arranged on a workbench, and the workbench is equipped with a computer terminal.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the design of the rotating assembly enables the transmission type standard color plate target to rotate flexibly, simulating the test scenes at different angles. The topological deformation unit realizes the precise control of the curved surface modeling of the transmission type standard color plate target through the circular array arrangement of the first servo electric cylinder, thus expanding the coverage of the test. The coordinated work of the micro-adjustment mechanism and the macro-adjustment mechanism enables the test mechanism to realize fine and macro angle and position adjustment in multiple directions, meeting the complex test requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the whole machine of the present invention from one perspective; Figure 2 It is a schematic diagram of the whole machine of the present invention from another perspective; Figure 3 It is a three-dimensional schematic diagram of the storage assembly and the black-and-white camera of the present invention; Figure 4 It is a three-dimensional schematic diagram of the storage assembly, black and white camera, macro adjustment mechanism and testing mechanism of the present invention; Figure 5 For the present invention Figure 4Schematic diagram of the enlarged view of area A (showing the details of the feed component); Figure 6 is a three-dimensional schematic diagram of the testing mechanism of the present invention; Figure 7 It is a three-dimensional schematic diagram of the rotating assembly, the integrating sphere and the fine-motion adjustment mechanism in the testing mechanism of the present invention; Figure 8 It is a three-dimensional schematic diagram of the micro-adjustment mechanism of the present invention; Fig. 9 It is a schematic diagram of the curved surface deformation of the transmission type standard color plate target of the present invention.

[0020] Figure numerals: 1, storage assembly; 101, truss; 102, first motor; 103, first transmission belt; 104, mobile connection platform; 2, black and white camera; 3, macro adjustment mechanism; 301, feeding assembly; 3011, second motor; 3012, second transmission belt; 3013, rocker arm; 302, frame; 303, connecting arm; 304, connecting frame; 4, testing mechanism; 401, rotating assembly; 4011, first Three motors; 4012, gear; 4013, gear ring; 4014, seat ring; 4015, rotating frame; 4016, topological deformation unit; 402, transmission standard color plate target; 403, integrating sphere; 404, micro-adjustment mechanism; 4041, first disk; 4042, second disk; 4043, second servo electric cylinder; 4044, universal joint coupling; 405, light shield; 5, workbench; 6, computer terminal. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below; Example: The document "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 that uses red, blue, and green color comparison cards and image color comparison to detect and judge the color difference problem of the endoscope; on the one hand, if the detection angle in the detection mode is fixed, it may not cover all possible angle changes of the endoscope in actual use. On the other hand, the actual human body structure is complex and diverse, containing many curved parts. The surface shape and curvature radius of these curved parts are different, which puts higher requirements on 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; for this reason, please refer to Figure 1-Figure 9 This specific embodiment will provide a performance detection device for a cold light source of a medical endoscope to solve the above technical problems: it includes a placement component 1 for placing and adjusting the orientation of an endoscope in the traditional technology, a black and white camera 2 connected to the endoscope and responsible for shooting, and a testing mechanism 4 for performing a color difference test on the endoscope. The improvement of this solution is that the testing mechanism 4 includes: The rotating component 401 is connected to and drives the rotating flexible transmissive standard color plate target 402, and controls the curved surface modeling of the transmissive standard color plate target 402 through the topological deformation unit 4016; wherein the transmissive standard color plate target 402 uses a flexible material with high transparency as a substrate, and is coated with area blocks of different colors and evenly distributed; An integrating sphere 403 for providing a light source to the transmission type standard color plate target 402 (so that the gray scale of the white area image reaches 255); A micro-adjustment mechanism 404 drives an integrating sphere 403, a rotating assembly 401 and a 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, which drives the testing mechanism 4 to perform macro-universal angle adjustment relative to the endoscope.

[0022] In this solution, when using, the endoscope needs to be fixed on the storage component 1 first, and its shooting end is connected to the black and white camera 2, the detection end of the endoscope is aimed at the transmission standard color plate target 402, and the integrating sphere 403 is turned on; then the topological deformation unit 4016 controls the adjustment of the surface shape of the transmission standard color plate target 402 to simulate different human body surface structures. In this process, some color area blocks of the transmission standard color plate target 402 will be stretched or compressed, thereby simulating the concentration effects of different colors and further improving the detection effect; and the rotating component 401 can drive the angle of the transmission standard color plate target 402 relative to the endoscope; by rotating the transmission standard color plate target 402 with different surface shapes for one circle, it can be determined whether the endoscope will have color difference at different angles. Externally, the macro-adjustment mechanism 3 drives the test mechanism 4 to perform a large range of spatial orientation adjustment relative to the endoscope, while the micro-adjustment mechanism 404 can slightly adjust the spatial orientation and angle of the transmission standard color plate target 402 relative to the endoscope, further avoiding missed detection, misjudgment or missed judgment.

[0023] Specifically: The design principle of this detection device is to fully simulate different scenarios of endoscopes in actual use by dynamically adjusting the curved surface shape and angle of the transmission-type standard color plate target 402 and the light source provided by the integrating sphere 403. The flexible design of the transmission-type standard color plate target 402 enables it to simulate the curved surface structure of the human body, and the flexible change of the target surface shape is achieved through the precise control of the topological deformation unit 4016. 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 coordinated use of the micro-adjustment mechanism 404 and the macro-adjustment mechanism 3 enables the test mechanism 4 to perform fine spatial orientation and angle adjustments relative to the endoscope, thereby covering all possible observation angles of the endoscope and ensuring the comprehensiveness and accuracy of color difference detection.

[0024] It is understandable that the above scheme can significantly improve the efficiency and accuracy of color difference detection of cold light sources of medical endoscopes. By driving the transmission type standard color plate target 402 to rotate through the rotating component 401, and cooperating with the surface modeling control of the topological deformation unit 4016, a variety of complex human body surface structures can be simulated, thereby 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 and make the test results more reliable. The precise adjustment capabilities of the micro-adjustment mechanism 404 and the macro-adjustment mechanism 3 enable the test mechanism 4 to flexibly adjust the spatial orientation and angle of the transmission type standard color plate target 402 relative to the endoscope, thereby realizing a comprehensive detection of the chromatic aberration 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.

[0025] In the technical solution provided in this embodiment, please refer to Figure 6-Figure 7 The rotating assembly 401 includes a hollow seat ring 4014, on which a third motor 4011 is disposed. The third motor 4011 drives a gear 4012 to rotate. The gear 4012 is meshed with a gear ring 4013. The gear ring 4013 rotates in the seat ring 4014. The end face of the gear ring 4013 is fixedly connected with a hollow rotating frame 4015. A transmission-type standard color plate target 402 is fixedly disposed in the rotating frame 4015. The hollow portion of the seat ring 4014 serves as a light source passage relative to the integrating sphere 403.

[0026] Specifically: the third motor 4011 is used as a power source, and the rotational power is transmitted to the ring gear 4013 through the gear 4012, and the ring gear 4013 then drives the rotating frame 4015 and the transmission type standard color plate target 402 to rotate together. This transmission method has the advantages of compact structure, accurate transmission, and smooth operation. At the same time, the hollow seat ring 4014 design not only reduces the weight of the entire rotating component 401, but also provides a path for the light source of the integrating sphere 403, so that the light source can smoothly shine on the transmission type standard color plate target 402, ensuring that the lighting conditions of the test environment are consistent. This design principle not only meets the functional requirements of the rotating component 401, but also takes into account the lighting conditions of the test environment, reflecting the comprehensiveness and practicality of the design.

[0027] It is understandable that in the above scheme: through the drive of the third motor 4011, the transmission type standard color plate target 402 can be rotated, thereby simulating different observation angles of the endoscope in actual use. Because different observation angles may produce different chromatic aberration effects. At the same time, the hollow seat ring 4014 design allows the light source of the integrating sphere 403 to smoothly illuminate the transmission type standard color plate target 402, ensuring that the lighting conditions of the test environment are consistent and stable. Not only does it improve the accuracy and reliability of the test, but it also provides a safer and more accurate visual guarantee for the doctor's surgical operation.

[0028] In the technical solution provided in this embodiment, please refer to Figure 7 The topological deformation unit 4016 is a plurality of first servo electric cylinders arranged in a circular array. The cylinder body of the first servo electric cylinder is fixed on the rotating frame 4015. The piston rod of the first servo electric cylinder is adhered and connected to the outer edge of the transmission type standard color plate target 402. The first servo electric cylinders arranged in a circular array are equivalent to the outer edge of the transmission type standard color plate target 402 being evenly adhered and connected with a plurality of piston rods. When the piston rods of any one or more first servo electric cylinders perform telescopic motion, the curved surface shape of the transmission type standard color plate target 402 can be controlled.

[0029] Specifically: The design principle of the topological deformation unit 4016 is mainly based on the precise control of the servo electric cylinder and the arrangement of the circular array. In this embodiment, a plurality of servo electric cylinders are arranged in a circular array on the rotating frame 4015, and the piston rod is connected to the outer edge of the transmission type standard color plate target 402 by means of an adhesive connection. In this way, when the piston rod of the servo electric cylinder performs a telescopic movement, it will produce a stretching or compressing effect on the transmission type standard color plate target 402, thereby changing its curved surface shape. Due to the precise control capability of the servo electric cylinder and the arrangement of the circular array, the change of this curved surface shape can be very precise and flexible.

[0030] 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 cause the transmission type standard color plate target 402 to deform. By controlling the telescopic amount and telescopic speed of different servo electric cylinders, the shape of the transmission type standard color plate target 402 can be accurately and flexibly adjusted. This mechanism effectively solves the problem of how to flexibly and dynamically control and adjust the curved surface shape of the transmission type standard color plate target 402. By adjusting the curved surface shape, different curved surface test scenes can be simulated, thereby detecting the color deviation of the endoscope.

[0031] Further, such as Fig. 9 As shown, this embodiment provides several different simulation modes (for the sake of clear demonstration, the transmission type standard color plate target 402 is square and has only two color intervals): 1) If Fig. 9 As shown in part (A), the topological deformation unit 4016 is not started, and the transmission standard color plate target 402 is a flat plate, which plays the test function of a traditional device; it is used to perform a preliminary test on the basic color recognition ability of the endoscope.

[0032] 2) If Fig. 9 As shown in part (B), a topological deformation unit 4016 is activated to make the flat-plate transmission standard color plate target 402 produce a partial curved surface shape, and the specific size is determined by the position, extension direction and feeding degree of the activated topological deformation unit 4016; in this mode, the endoscope's ability to recognize the color deviation of the local curved surface target can be tested. It is suitable for simulating the local curved surface tissue that the endoscope may encounter during surgery, and evaluating its ability to recognize and process the curved surface color deviation.

[0033] 3) If Fig. 9 As shown in part (C), multiple topological deformation units 4016 are activated to make the flat-plate transmission standard color plate target 402 produce irregular curved surface shapes, the specific size of which 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 complex curved surface targets can be fully tested, including the recognition of different curved surface angles, curvatures and color boundaries. It is suitable for simulating complex surgical environments, such as tumor resection, organ transplantation, etc., which involve multiple curved surface shapes and color changes.

[0034] 4) If Fig. 9As shown in part (D), all topological deformation units 4016 are started, and the feeding direction and spacing are the same, so that the entire transmission standard color plate target 402 produces a large and regular change. In this mode, the color deviation recognition ability of the endoscope for targets with large-scale and regular surface changes can be tested. It is suitable for evaluating the tracking and color recognition ability of the endoscope for continuous surface changes in dynamic surgical environments, such as intestinal examinations, vascular surgery, etc.

[0035] Through these four different simulation modes, the endoscope's ability to recognize color deviations of curved targets can be fully evaluated. From the flat mode to the large-scale regular change mode, the complexity and challenge of the test are gradually increased, thereby more accurately reflecting the performance of the endoscope in the actual surgical environment. This fine and dynamic surface modeling adjustment technology provides strong support for the performance detection of the endoscope.

[0036] Furthermore, the transmission type standard color plate target 402 needs to use a flexible material with high transparency as the substrate, and needs to be elastic to adapt to the adjustment of its curved surface shape by the topological deformation unit 4016. On the substrate, there are area blocks 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 spectrocolorimeter, colorimeter, colorimeter, etc.; the topological deformation unit 4016 can simulate different human curved surface structures by accurately controlling the curved surface shape of the transmission type standard color plate target 402. In this process, some color area blocks on the target will be stretched or compressed in area, thereby simulating the concentration effects of different colors. This dynamic adjustment capability makes the detection process closer to the actual surgical environment and improves the accuracy and reliability of the detection.

[0037] Preferably, the material of the transmission type standard color plate target 402 is any one of the following: (1) Optical grade polyester film: a highly transparent plastic film with good light transmittance and flexibility. It is often used to manufacture optical components and display devices, and is therefore also suitable as a substrate for the transmission type standard color plate target 402.

[0038] (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 surface deformation. Therefore, polycarbonate is also a potential material choice for the transmission standard color plate target 402.

[0039] (3) Polyimide film: A high-performance polymer film with extremely high heat resistance, chemical stability and mechanical strength. Although its flexibility is relatively poor, polyimide film may be a more suitable choice in some endoscopic inspections that require working in high temperature or highly corrosive environments.

[0040] It is understandable that in the above scheme: the topological deformation unit 4016 plays an important functional role in the performance detection device of the cold light source of the medical endoscope. By accurately controlling the curved surface modeling of the transmission type standard color plate target 402, a variety of complex human curved surface structures can be simulated, thereby more realistically reflecting the imaging effect of the endoscope in actual use. This function is crucial for comprehensively detecting the chromatic aberration phenomenon and imaging quality of the endoscope. At the same time, the flexibility and accuracy of the topological deformation unit 4016 also enable the entire performance detection device to adapt to the testing requirements of endoscopes of different models and specifications. In addition, due to the high reliability and stability of the servo electric 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.

[0041] In order to solve the problem of fixed detection angle, in the technical solution provided in this embodiment, please refer to Figure 7-Figure 8 The micro-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 therebetween. 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 through a universal joint coupling 4044.

[0042] Specifically: The design principle of the micro-adjustment mechanism 404 is mainly based on the precise control of the second servo electric cylinder 4043 and the universal articulation function of the universal joint coupling 4044. The second servo electric cylinder 4043 is an electric actuator that can accurately control displacement and speed, and 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 angle deviation between the two axes. In this embodiment, the second servo electric cylinder 4043 is arranged in a circular array between the first disk body 4041 and the second disk body 4042, and the universal articulation of the cylinder body and the piston rod is achieved through the universal joint coupling 4044. In this way, when the piston rod of the second servo electric 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, thereby achieving a small displacement and angle adjustment of the transmission type standard color plate target 402. Due to the precise control capability of the second servo electric cylinder 4043 and the universal joint function of the universal joint coupling 4044, this slight adjustment can be very precise and flexible.

[0043] It is understandable that in the above scheme: the micro-adjustment mechanism 404 plays a vital role in the performance detection device of the cold light source of the medical endoscope. By accurately controlling the spatial orientation and angle of the transmission standard color plate target 402 relative to the endoscope, a comprehensive detection of the chromatic aberration phenomenon of the endoscope can be achieved. This function is crucial to ensure the imaging quality and color reproduction of the endoscope in actual use. At the same time, the flexibility and accuracy of the micro-adjustment mechanism 404 also enable the entire performance detection device to adapt to the testing requirements of endoscopes of different models and specifications. In addition, due to the high reliability and stability of the second servo electric cylinder 4043, the micro-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.

[0044] In the technical solution provided in this embodiment, please refer to Figure 6-Figure 8 : The integrating sphere 403 and the seat ring 4014 of the rotating assembly 401 are fixedly mounted on the second disk body 4042; the first disk body 4041 is hollow so as to leave room for the integrating sphere 403 to move during universal angle adjustment; a light shield 405 is disposed between the integrating sphere 403 and the second disk body 4042.

[0045] Specifically: the second plate 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 plate 4041 provides sufficient movement space for the integrating sphere 403, so that it can perform multi-angle lighting tests. The setting of the light shield 405 effectively blocks the external light, ensuring the consistency and stability of the lighting conditions of the test environment. It not only has the function of accurately adjusting the spatial orientation and angle of the transmission 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 lighting conditions of the test environment, providing strong support for the chromatic aberration test of the endoscope. At the same time, the hollow design of the first plate 4041 enables the integrating sphere 403 to perform multi-angle lighting tests, further improving the comprehensiveness and accuracy of the test.

[0046] In the technical solution provided in this embodiment, please refer to Figure 2-Figure 5 The macro-motion adjustment mechanism 3 includes a frame 302 and at least three feeding components 301 arranged in a circular array outside the frame 302. The feeding components 301 output the feeding action to the connecting frame 304. When the connecting frame 304 receives at least three feeding actions at the same time, the macro-universal angle adjustment can be achieved. The first plate 4041 of the micro-motion adjustment mechanism 404 is fixed on the connecting frame 304, thereby achieving the fixation between the test mechanism 4 and the macro-motion adjustment mechanism 3.

[0047] Furthermore, the first disc body 4041 of the fine adjustment mechanism 404 is fixedly arranged on the connecting frame 304. In this way, the testing mechanism 4 (including the integrating sphere 403, the rotating assembly 401, the transmissive standard color plate target 402, etc.) is stably connected to the macro adjustment mechanism 3 through the fine adjustment mechanism 404. This design not only ensures the stability of the testing mechanism 4 during the macro adjustment process, but also enables the fine adjustment mechanism 404 to perform more precise angle and position adjustments on this basis.

[0048] Specifically: The design principle of the macro adjustment mechanism 3 is mainly based on the idea of multi-point support and coordinated feeding. Through the annular array arrangement of at least three feeding components 301, it is ensured that the connecting frame 304 can obtain stable support and driving force in multiple directions. When these feeding 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 disc body 4041 of the fine adjustment mechanism 404, this macroscopic angle adjustment will be directly transmitted to the testing mechanism 4, realizing precise control of the endoscope testing environment.

[0049] It can be understood that in the above solution: The macro 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 angle and position conditions that the endoscope may encounter during actual use, thus providing a more real and comprehensive environment for testing. At the same time, the close combination with the fine adjustment mechanism 404 enables the entire testing system to perform precise angle and position adjustments at both the macroscopic and microscopic levels, greatly improving the accuracy and flexibility of the testing. In addition, the stable support and precise adjustment ability of the macro adjustment mechanism 3 also provide a safer and more accurate visual guarantee for the doctor's surgical operation.

[0050] It can be understood that the fine 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 test accuracy. The macro adjustment mechanism 3 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 adjustment mechanism 3 and the fine adjustment of the fine adjustment mechanism 404, more accurate test positioning can be achieved. The two adjustment mechanisms cooperate with each other and can 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.

[0051] For example, in endoscope inspection, the tested object (endoscope) may need to enter a narrow space 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, thereby more realistically reflecting the performance of the endoscope. The fine-tuning capability of the micro-motion adjustment mechanism 404 and the rapid positioning capability of the macro-motion adjustment mechanism 3 are combined to significantly shorten the test preparation time. The tester does not need to manually adjust the position and angle of the tested object, thereby improving the test efficiency.

[0052] In the technical solution provided in this embodiment, please refer to Figure 4-Figure 5 The feeding assembly 301 includes a second motor 3011 fixed 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, and 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 a spherical coupling.

[0053] Specifically: in order to convert the rotary motion of the rocker arm 3013 into the feeding action of the connecting frame 304, the connecting arm 303 is introduced. One end of the connecting arm 303 is universally hinged with the connecting frame 304 through a spherical coupling, and the other end is also universally hinged with the rocker arm 3013 through a spherical coupling. The design of this spherical coupling enables the connecting arm 303 to flexibly transmit force and motion in multiple directions, thereby 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 rotary motion of the rocker arm 3013 is then transmitted to the connecting frame 304 through the connecting arm 303, so that the connecting frame 304 can generate feeding action in multiple directions. Since at least three feeding assemblies 301 are arranged in an annular array outside the frame 302 and act on the connecting frame 304 at the same time, the connecting frame 304 can realize macroscopic universal angle adjustment.

[0054] It can be understood that in the above scheme: the feeding assembly 301 can not only provide a stable driving force and a precise transmission ratio, but also realize the feeding action of the connecting frame 304 in multiple directions through the universal joint function of the ball coupling. This design not only improves the flexibility and accuracy of the macro-adjustment mechanism 3, but also provides a more realistic and comprehensive testing environment for the entire test system.

[0055] In the technical solution provided in this embodiment, please refer to Figure 1-Figure 4The storage assembly 1 includes a truss 101, a mobile connecting platform 104 that is slidably fitted on the truss 101 and is used to fix an endoscope, a first motor 102 that is fixed on the truss 101, and a first transmission belt 103 driven by the first motor 102. The first transmission belt 103 drives the mobile connecting platform 104 to adjust its position.

[0056] In the technical solution provided in this embodiment, please refer to Figure 1-Figure 2 : 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-motion adjustment mechanism 3 and the testing mechanism 4. The storage component 1, the black and white camera 2 and the macro-motion adjustment mechanism 3 are all arranged on a workbench 5, and the computer terminal 6 is mounted on the workbench 5.

[0057] In this solution, all electrical components of the device as a whole rely on AC power for energy supply; specifically, the electrical components of the device as a whole are conventionally electrically connected to the AC power output port through devices such as relays, transformers and button panels to meet the energy supply requirements of all electrical components of the device.

[0058] Furthermore, for the performance detection device of the medical endoscope cold light source disclosed in this specific embodiment, the electrical components as described in the context, and the mechanism composed of them can realize the corresponding operation start and stop time interval, speed, power and other output parameter control through the controller executing the conventional PID controller algorithm (Proportion Integral Differential), that is, the mechanism executes a predetermined or preset action operation mode according to a certain function or motion trajectory.

[0059] In summary, in view of the related problems in the traditional technology, this specific embodiment is based on the performance detection device of the medical endoscope cold light source provided above, and adopts the following technical means or features to achieve the solution: Dynamically adjust the spatial orientation of the transmission type standard color plate target 402: The macro-adjustment mechanism 3 realizes the macroscopic universal angle adjustment of the connecting frame 304 (on which the micro-adjustment mechanism 404 and the transmission type standard color plate target 402 are fixed) through the annular array arrangement and coordinated work of at least three feeding components 301. This design allows the transmission type standard color plate target 402 to be dynamically adjusted in space relative to the stationary medical endoscope in multiple directions. The second motor 3011 in the feeding component 301 drives the rocker arm 3013 to rotate by driving the second transmission belt 3012, and the rocker arm 3013 then converts the rotational motion into the feeding action of the connecting frame 304 through the connecting arm 303 and the spherical coupling. Due to the universal articulation function of the spherical coupling, the connecting frame 304 can achieve precise displacement and angle adjustment in multiple directions.

[0060] Through the design of the macro-adjustment mechanism 3, the transmissive standard color plate target 402 can flexibly change its spatial orientation relative to the medical endoscope, thereby avoiding missed detection, misjudgment or missed judgment during the detection process. For example, when it is necessary to detect the color performance of the endoscope at different angles to the target, the orientation of the target can be easily adjusted to meet the test requirements.

[0061] Flexible and dynamic control of the curved surface of the transmission standard color plate target 402: Fine and dynamic curved surface adjustment of the transmission standard color plate target 402 can simulate different curved surface shapes, so that the detection mode can detect the color deviation of the endoscope to the curved surface target. This design improves the flexibility and accuracy of the detection, allowing the system to more comprehensively evaluate the performance of the endoscope.

[0062] The above-mentioned embodiments only express the implementation methods of the relevant practical applications of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached 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) that drives 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.

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 1, characterized in that: The topological deformation unit (4016) is a plurality of first servo electric cylinders arranged in a circular array, wherein the piston rods of the first servo electric cylinders are 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.

4. The performance detection device according to any one of claims 1 to 3, characterized in that: 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).

5. The performance detection device according to claim 4, 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).

6. The performance detection device according to claim 4, characterized in that: 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 simultaneously, the macro-universal angle adjustment can be achieved.

7. The performance detection device according to claim 6, characterized in that: The first disk body (4041) of the micro-adjustment mechanism (404) is fixedly mounted on the connecting frame (304).

8. The performance detection device according to claim 7, characterized in that: 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).

9. 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.

10. The performance detection device according to claim 4, 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).

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