Front end component and endoscope

Abstract

The present invention provides a front-end component and an endoscope, and relates to the technical field of medical devices. The present invention includes a front-end shell; a camera module, which is arranged at the front-end shell and is used to collect images; an illumination light source, which is arranged at the front-end shell and is used for illumination; and a marking light source, which is arranged at the front-end shell and is used to form a marking light spot in the image collection area of ​​the camera module; wherein the image collected by the camera module has an indication mark and a range mark, and in the image collected by the camera module in the clear imaging area, the marking light spot is located in the area between the range mark and the indication mark. Compared with the prior art, the present invention has the advantage of being able to provide effective guidance for doctors, helping doctors adjust the position of the front-end shell so that the front-end shell is at a suitable distance from the target, thereby allowing the target to be located in the clear imaging area to obtain a clear target image.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a front-end component and an endoscope. Background Art

[0002] Lesions are abnormal changes that form in tissues in the body, and may include tumors, polyps, kidney stones, etc. These lesions vary in size and shape, which affects doctors' diagnosis and treatment decisions. Endoscopy is a common method that can directly observe lesions and provide important information for subsequent treatment. Accurately assessing the size of the lesion helps to develop appropriate treatment plans, such as choosing the appropriate removal or resection method.

[0003] During endoscopic surgery, doctors adjust the position of the endoscope to obtain images of lesions and judge the location of the lesions based on these images. However, the complexity of the internal environment often leads to limited image clarity, and the doctor's operating experience has a direct impact on image quality. Due to the different experience levels of different doctors, the image clarity obtained when adjusting the endoscope will also vary. This experience-based adjustment method can easily lead to a decrease in image quality, thereby affecting the accurate assessment of lesions. This inaccurate judgment may lead to inappropriate treatment plans, which in turn have a negative impact on the patient's recovery. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present application provides a front end component and an endoscope.

[0005] In a first aspect, the present application provides a front-end component, which adopts the following technical solution:

[0006] A front end component, applied to an endoscope, comprising:

[0007] Front end housing;

[0008] A camera module, arranged at the front housing, for collecting images, wherein the camera module has a preset near-view limit and far-view limit to limit a clear imaging area of ​​the camera module;

[0009] an illumination light source, disposed in the front end housing, for illumination; and

[0010] A marking light source, disposed in the front end housing, for forming a marking light spot in the image acquisition area of ​​the camera module;

[0011] The image captured by the camera module has an indicator mark and a range mark, the indicator mark is used to indicate the optical axis of the camera module, and the range mark and the indicator mark are arranged at intervals; the optical axis of the mark light source intersects with the optical axis of the camera module and forms a first intersection, and the first intersection is located at the near view limit or the far view limit;

[0012] When the first intersection point is located at the near view limit, in the image captured at the far view limit, the optical axis of the marking light source intersects with the range mark;

[0013] When the first intersection point is located at the far view limit, in the image collected at the near view limit, the optical axis of the mark light source intersects with the range mark.

[0014] Preferably, the indicator mark is arranged on the lens of the camera module, the optical axis of the camera module passes through the center point of the indicator mark, and the indicator mark is used to block at least part of the light of the wavelength band;

[0015] And / or, the range mark is set on the lens of the camera module, and in the image captured by the camera module in the clear imaging area, the mark light spot is located in the area between the range mark and the indication mark.

[0016] Preferably, it further comprises a range light source disposed on the front end housing, wherein the range light source is used to form the range mark within the image acquisition area of ​​the camera module;

[0017] In the image captured by the camera module in the clear imaging area, the marking light spot is located in the area between the range mark and the indication mark.

[0018] Preferably, the optical axis of the range light source intersects with the optical axis of the camera module, and the intersection position is located in an area outside the clear imaging area;

[0019] Alternatively, the optical axis of the range light source is parallel to the optical axis of the camera module.

[0020] Preferably, the light emitted by the range light source is parallel light;

[0021] And / or, the range light source is located on one side of the camera module, and the marking light source is located on the other side of the camera module.

[0022] Preferably, the light emitted by the marking light source is parallel light;

[0023] And / or, the marking light source and the illumination light source are located on the same side of the camera module.

[0024] Preferably, the optical axis of the illumination light source intersects with the optical axis of the camera module, and the intersection position is located outside the clear imaging area;

[0025] Alternatively, the optical axis of the illumination light source is parallel to the optical axis of the camera module, the optical axis of the illumination light source intersects with the optical axis of the marking light source, and the intersection position is located in an area outside the clear imaging area.

[0026] In a second aspect, the present application provides an endoscope, which adopts the following technical solution:

[0027] An endoscope comprises a front end component described in the above technical solution.

[0028] The present invention has the following advantages and beneficial effects:

[0029] When capturing an image of a target, first adjust the position of the front housing so that the indicator mark in the image captured by the camera module is located at the center of the target. Then, continue to adjust the front housing so that the mark spot in the image captured by the camera module is located in the area between the indicator mark and the range mark. At this point, the target position will be in the clear imaging area, so that a clear target image can be captured by the camera module.

[0030] By setting indicator marks and range marks, effective guidance can be provided to doctors, helping them adjust the position of the front housing so that it is at an appropriate distance from the target, thereby ensuring that the target is in a clear imaging area to obtain a clear target image. This not only reduces the difficulty of operation, but also ensures that different doctors can obtain consistent picture clarity under similar conditions, eliminating image quality fluctuations caused by differences in experience. The optimization of this structure effectively solves the impact of the complexity of the in vivo environment on image clarity, as well as the inaccurate evaluation caused by differences in doctors' operating experience, thereby reducing the risk of inappropriate treatment plans. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the structure of the front-end components;

[0034] Figure 3 It is a schematic diagram of the imaging of the camera module when the target is between the near-field boundary and the camera module;

[0035] Figure 4 is Figure 3Schematic diagram of images collected by the camera module in the case;

[0036] Figure 5 It is a schematic diagram of imaging of the camera module when the target is at the side of the distant view boundary away from the camera module;

[0037] Figure 6 is Figure 5 Schematic diagram of images collected by the camera module in the case;

[0038] Figure 7 It is a schematic diagram of the imaging of the camera module when the target is in the clear imaging area;

[0039] Figure 8 is Figure 7 Schematic diagram of images collected by the camera module in the case;

[0040] Fig. 9 It is a schematic diagram of imaging of the camera module when the optical axis of the range light source intersects with the optical axis of the camera module;

[0041] Fig.10 images collected for endoscopy;

[0042] Fig.11 It is a schematic diagram of the structure of an endoscope.

[0043] The markings in the figure are:

[0044] 10. Endoscope; 20. Target; 100. Front end shell; 200. Camera module; 210. Indicator mark; 220. Near-field boundary; 230. Far-field boundary; 240. Clear imaging area; 300. Illumination light source; 400. Marking light source; 410. First intersection point; 420. Marking light spot; 430. Second intersection point; 500. Range light source; 510. Range mark; L1. Optical axis of camera module; L2. Optical axis of marking light source; L3. Optical axis of range light source. DETAILED DESCRIPTION

[0045] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0046] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0047] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its components relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0048] The camera has a specific depth of field, which refers to the distance range in which the camera can capture a clear image. This range is defined by the near-field boundary and the far-field boundary. The near-field boundary is the closest distance that the camera can capture a clear image, while the far-field boundary is the farthest distance that the camera can capture a clear image. The area between the near-field boundary and the far-field boundary is the clear imaging area of ​​the camera. In practical applications, the existence of depth of field allows the camera to provide relatively clear images within a certain distance, but if the target object is beyond this range, the image clarity will decrease.

[0049] In modern medicine, endoscopic technology is widely used in various minimally invasive surgeries and diagnostic procedures. Many endoscopic devices are equipped with cameras so that doctors can observe the target in real time. However, due to economic and usage restrictions, many endoscopic cameras are still designed to not be able to focus automatically. This means that the operating doctor needs to manually adjust the distance between the camera and the target area to ensure that the observation area is within the clear imaging range of the camera. This manual adjustment increases the complexity of the operation, especially in a dynamic surgical environment, which may affect the doctor's judgment and surgical efficiency.

[0050] In addition, doctors have different levels of experience, so the image clarity obtained when adjusting the endoscope will also vary. This experience-based adjustment method may lead to a decrease in image quality, which in turn affects the accurate assessment of the target. Therefore, it is particularly important to find an effective solution to improve the clarity of endoscopic images.

[0051] To address this problem, the present application provides a front-end component, an endoscope, and an image acquisition and analysis method. By setting indicator marks and range marks, the doctor can be guided to adjust the position of the front-end component so that the target is located within the clear imaging area of ​​the camera module, so that a clear target image can be captured by the camera module. This not only reduces the difficulty of operation, but also ensures that different doctors can obtain consistent picture clarity under similar conditions, eliminating image quality fluctuations caused by differences in experience. The optimization of this structure effectively solves the impact of the complexity of the internal environment on image clarity, as well as the problem of inaccurate evaluation caused by differences in doctors' operating experience, thereby reducing the risk of inappropriate treatment plans.

[0052] The following is combined with Figures 1 to 11 , a front-end component and an endoscope provided in an embodiment of the present application are described in detail through specific embodiments and their application scenarios.

[0053] The first aspect of this embodiment provides a detailed description of a front-end component.

[0054] The embodiment of the present application provides a front end assembly, which is applied to an endoscope 10. For example, referring to Figure 1 , Fig.11 , the endoscope 10 includes an insertion portion, and the front end assembly is located in the insertion portion. Specifically, the front end assembly is located at the distal end of the insertion portion. In some embodiments, the front end assembly can be a part of the insertion portion, and illustratively, the front end assembly and a part of the insertion portion are an integral structure. In some embodiments, the front end assembly can be detachably mounted on the insertion portion, and illustratively, the front end assembly is connected to the insertion portion by a clamping structure and / or bolts.

[0055] Reference Figure 1 , Figure 2 , the front-end assembly includes a front-end housing 100, a camera module 200, an illumination light source 300 and a marking light source 400. Exemplarily, the front-end housing 100 is a basic structural member. The front-end housing 100 can be the installation base for the camera module 200, the illumination light source 300 and the marking light source 400. In some schemes, an instrument channel is provided in the insertion portion, one end of the instrument channel is opened at the handle portion of the endoscope 10, and the other end is located at the distal end of the insertion portion, so that the instrument can be inserted into the body through the opening of the handle portion of the endoscope 10 through the insertion portion. The front-end housing 100 has an instrument port, the instrument channel extends to the front-end housing 100, and the instrument channel is connected to the instrument port. That is, through the instrument channel of the endoscope 10, the instrument can be extended from the instrument port of the front-end housing 100, so that the tissue in the body can be operated by the instrument.

[0056] In some embodiments, the illumination light source 300 is disposed at the front housing 100, and the illumination light source 300 can illuminate the internal space, so that the image captured by the camera module 200 can be clearer. It can be understood that in this embodiment, the light emitted by the illumination light source 300 is non-parallel light. Exemplarily, the illumination light source 300 is a point light source, that is, light is emitted from the illumination light source 300 to the surroundings.

[0057] In some embodiments, reference Figure 2 , Figure 3 The camera module 200 has a preset near-view limit 220 and a far-view limit 230 to limit a clear imaging area 240 of the camera module 200. The near-view limit 220 indicates the closest distance at which the camera module 200 can capture a clear image, while the far-view limit 230 indicates the farthest distance at which a clear image can be captured. When the distance between an object and the camera module 200 is less than the near-view limit 220 or greater than the far-view limit 230, the camera module 200 will not be able to clearly capture the object.

[0058] The structure of the camera module 200 includes an optical lens and a photosensitive element, which can focus light on the photosensitive element. The focal length of the lens determines the setting of the near-view limit 220 and the far-view limit 230. The reasonable setting of these limits helps to optimize the focusing effect of light, thereby enhancing the clarity of the image. By setting the near-view limit 220, the camera module 200 can avoid image defocus or distortion caused by objects being too close; setting the far-view limit 230 prevents image blur caused by objects being too far away.

[0059] In order to effectively observe the target in the body, the doctor needs to constantly adjust the position of the endoscope 10 during the treatment process to ensure that the distance between the target and the camera module 200 is between the two limits. In this way, the camera module 200 can clearly capture the image of the target area to a certain extent, which is beneficial for the doctor to judge and evaluate the target.

[0060] In some embodiments, reference Figure 2 , Figure 3 , the image captured by the camera module 200 has an indicator mark 210, and the indicator mark 210 is used to indicate the optical axis of the camera module 200. Among them, the optical axis of the camera module 200 represents the direction of light emitted from the optical center of the lens of the camera module 200 (usually the geometric center of the lens). Exemplarily, the center position in the image captured by the camera module 200 is the position of the optical axis. Specifically, the center position of the image captured by the camera module 200 is the position of the optical axis, and the optical axis is perpendicular to the image plane and passes through the center point of the image.

[0061] In some embodiments, the marking light source 400 is used to form a marking light spot 420 in the image acquisition area of ​​the camera module 200. Exemplarily, the marking light source 400 can be a laser or a concentrated light. This design makes the marking light spot 420 have high brightness and clarity in the image, which is convenient for the doctor to quickly locate the target 20 object during the observation process.

[0062] It is understandable that the brightness of the marking light source 400 is higher than that of the illumination light source 300, so that the marking light spot 420 can be clearly distinguished in the environment illuminated by the illumination light source 300. Exemplarily, the color of the marking light source 400 is different from the color of the illumination light source 300, and this color contrast helps the doctor to more easily identify and locate the marking light spot 420. This design enhances the visibility of the marking light spot 420, so that in a complex surgical environment, the doctor can quickly determine the position of the target 20, thereby optimizing the accuracy and efficiency of the surgical operation.

[0063] In some embodiments, reference Figure 3 , Figure 4 , the optical axis of the marking light source 400 intersects with the optical axis of the camera module 200 and forms a first intersection 410, and the first intersection 410 is located at the near view limit 220 or the far view limit 230. It can be understood that the first intersection 410 is a virtual point, which is located in the front area of ​​the camera module 200 lens, such as Figure 3 , 5 As shown in 7 , L1 is the optical axis of the camera module 200 , and L2 is the optical axis of the marking light source 400 .

[0064] In some embodiments, the image captured by the camera module 200 has a range mark 510, and the range mark 510 is spaced apart from the indicator mark 210. When the first intersection 410 is located at the near view limit 220, the optical axis of the marker light source 400 intersects with the range mark 510 in the image captured at the far view limit 230. When the first intersection 410 is located at the far view limit 230, the optical axis of the marker light source 400 intersects with the range mark 510 in the image captured at the near view limit 220. Exemplarily, the intersection position of the optical axis of the marker light source 400 and the range mark 510 forms a second intersection 430. That is, one of the first intersection 410 and the second intersection 430 is located at the near view limit 220, and the other is located at the far view limit 230.

[0065] This design enables the doctor to more intuitively judge the distance between the object and the camera module 200 when operating the endoscope 10, thereby optimizing the imaging effect and improving the accuracy of observation of the target. Specifically, since the optical axis of the marking light source 400 intersects with the optical axis of the camera module 200 at the first intersection 410, and the optical axis of the marking light source 400 intersects with the range mark 510 at the second intersection 430, the optical axis of the marking light source 400 between the first intersection 410 and the second intersection 430 is located between the near-view boundary 220 and the far-view boundary 230. This means that when an image located between the near-view boundary 220 and the far-view boundary 230 is captured by the camera module 200, an image in which the marking light spot 420 is located between the indicator mark 210 and the range mark 510 can be obtained (refer to Figure 7 , Figure 8 ).

[0066] In this way, when the camera module 200 captures an image of the target, if the marking light spot 420 is located between the range mark 510 and the indicator mark 210, it indicates that the target is located between the near-view limit 220 and the far-view limit 230, that is, the target is within the clear imaging area 240 of the camera module 200, and the captured target image will be clear. Therefore, the operator can judge the position between the target and the camera module 200 by observing the relationship between the marking light spot 420, the range mark 510, and the indicator mark 210 in the image of the camera module 200. By ensuring that the marking light spot 420 is located in the area between the range mark 510 and the indicator mark 210, a clear target image can be obtained.

[0067] It should be noted that in the image captured by the camera module 200, the marking spot 420, the indicator mark 210 and the range mark 510 can be located on the same straight line (refer to Figure 5 ), or they may not be located on the same straight line. Preferably, the marking spot 420, the indicator mark 210 and the range mark 510 are located on the same straight line. This design facilitates the determination of the positional relationship between the marking spot 420, the indicator mark 210 and the range mark 510, thereby providing a more intuitive reference for the doctor.

[0068] When the marking light spot 420, the indicator mark 210 and the range mark 510 are not located on the same straight line, the marking light spot 420 will still be located in the area between the indicator mark 210 and the range mark 510. This arrangement ensures that the doctor can effectively identify the relative position between the target and the camera module 200 when observing the image, regardless of whether the light spot is on the same straight line with other marks. Therefore, the relative position of the marking light spot 420 can provide the doctor with important positioning information to help him make a more accurate judgment. This flexibility is of great significance in practical applications and helps to optimize the operation of the endoscope 10 and improve the imaging effect.

[0069] According to an alternative embodiment, referring to Figure 2 , Figure 4 , the indicator mark 210 is set on the lens of the camera module 200, and the optical axis of the camera module 200 passes through the center point of the indicator mark 210. The indicator mark 210 is used to block at least part of the light band. Exemplarily, the indicator mark 210 is etched, pasted or printed at the center of the lens of the camera module 200. In this way, the optical axis of the camera module 200 will pass through the center of the mark. The color and transparency of the indicator mark 210 can also be adjusted to form a clear visual contrast in the captured image, thereby enhancing its visibility.

[0070] When the camera module 200 captures an image, since the indicator mark 210 is located at the center of the lens, the captured image will contain the corresponding indicator mark 210. By blocking the light of a certain band, the indicator mark 210 appears more obvious in the image, which helps the doctor to more accurately determine the position of the mark. For example, if a cross mark is printed at the center of the lens, a cross-shaped indicator mark 210 will appear in the image captured by the camera module 200 (refer to Fig.10 ). Since the indicator mark 210 is located at the center of the lens, it will also be located at the center of the image in the acquired image. Such a design helps the doctor to quickly locate and determine the position of the target when observing the image.

[0071] According to an optional embodiment, the range mark 510 is set on the lens of the camera module 200 (not shown in the figure), and in the image captured by the camera module 200 in the clear imaging area 240, the marking spot 420 is located in the area between the range mark 510 and the indicator mark 210. Exemplarily, the range mark 510 can be designed in a straight line, a curve, a cross or other geometric shapes. These marks can be applied to the surface of the camera module 200 lens by etching, printing or pasting to enhance its visibility in the image.

[0072] The color and transparency of the range mark 510 can be adjusted according to actual needs to ensure a clear visual contrast in the captured image. For example, a cross-shaped range mark 510 can be printed on the camera module 200 lens, and a certain distance is maintained between the mark and the indicator mark 210. In this way, the indicator mark 210 and the range mark 510 will be clearly displayed in the image captured by the camera module 200, and since the indicator mark 210 and the range mark 510 are different in size and color, the doctor can easily distinguish between the two marks.

[0073] In some embodiments, the range marker 510 has a first axis parallel to the optical axis of the camera module 200. The first axis intersects with the optical axis of the marker light source 400 and forms a second intersection 430, and one of the second intersection 430 and the first intersection 410 is located at the near-view limit 220, and the other is located at the far-view limit 230. This design provides a clear reference frame for the doctor, which helps to judge the distance between the target and the camera module 200.

[0074] It should be noted that the setting of the indicator mark 210 and the range mark 510 significantly improves the positioning ability of the doctor in actual operation, especially in a dynamic surgical environment, and can quickly adjust with the indicator mark 210 and the range mark 510, thereby improving the efficiency and accuracy of the operation. With the guidance of the indicator mark 210 and the range mark 510, the doctor can more effectively obtain clear images and ensure accurate observation and judgment of the target.

[0075] According to an alternative embodiment, referring to Figure 2 , Figure 3 The front-end assembly also includes a range light source 500 disposed on the front-end housing 100, and the range light source 500 is used to form a range mark 510 in the image acquisition area of ​​the camera module 200. Specifically, the range mark 510 is generated by the illumination of the range light source 500, providing a clear visual guide to help doctors quickly identify the target position when observing the image. In the figure, L3 is the optical axis of the range light source 500.

[0076] In the image captured by the camera module 200 in the clear imaging area 240, the marking light spot 420 is located in the area between the range mark 510 and the indicator mark 210. This design ensures that the doctor can intuitively judge the relative position between the object and the camera module 200 through the marking light spot 420 in the image. This setting not only improves the readability of the image, but also enhances the accuracy and efficiency of the doctor's operation in a dynamic surgical environment. With the assistance of the range light source 500, the doctor can better obtain a clear image, thereby making a timely and accurate assessment of the target.

[0077] Exemplarily, the range light source 500 is configured on the front housing 100, responsible for irradiating and generating the range mark 510. The range light source 500 can adopt different light source types, such as LED lights, lasers or other suitable lighting devices, and the selection can be determined according to the actual application environment and requirements.

[0078] The illumination angle and intensity of the range light source 500 can be adjusted to provide the best marking effect in different surgical environments. By adjusting the brightness of the range light source 500, the doctor can obtain consistent visibility in bright or dim environments. For example, in a darker in vivo environment, the range light source 500 can enhance the prominence of the range mark 510, thereby ensuring that the doctor can clearly identify the range mark 510 in the image.

[0079] The range mark 510 can be designed in a variety of shapes and colors according to the characteristics of the range light source 500 to form a clear visual contrast in the image. For example, the range mark 510 can be designed in a dot shape, a cross shape, or other geometric shapes, or even a dynamically changing light spot to attract the doctor's attention. Different color and pattern designs will help doctors quickly identify the mark in complex surgical scenes and avoid visual interference.

[0080] Reference Figure 3 and Figure 4 When the target is located between the camera module 200 and the near-view limit 220, in the image captured by the camera module 200, the marking spot 420 is located outside the range mark 510 and the indicator mark 210. In this case, the image captured by the camera module 200 is unclear, which may make it difficult for the doctor to accurately determine the position of the target, thereby affecting the observation of the target.

[0081] Reference Figure 5 and Figure 6 At this time, the target is located on the side of the distant view boundary 230 away from the camera module 200, and in the image captured by the camera module 200, the marking spot 420 is also located in the area outside the range mark 510 and the indicator mark 210. In this case, the image captured by the camera module 200 is unclear, and the doctor will also face difficulties in judging the distance and size of the target, which may affect subsequent operations and treatments.

[0082] Reference Figure 7 and Figure 8 When the target is located in the clear imaging area 240 of the camera module 200, the marking light spot 420 is located in the area between the range mark 510 and the indicator mark 210 in the image captured by the camera module 200. At this time, the image captured by the camera module 200 is clear, and the doctor can clearly identify the position of the target and make an accurate judgment based on the relative position of the mark, thereby optimizing the observation of the target and the treatment effect.

[0083] According to an alternative embodiment, referring to Fig. 9As shown, the optical axis of the range light source 500 intersects with the optical axis of the camera module 200, and the intersection position is located in the area outside the clear imaging area 240. This means that the irradiation direction of the range light source 500 forms a certain angle with the shooting direction of the camera module 200. When the camera module 200 is close to the near-view boundary 220, the interval between the indicator mark 210 and the range mark 510 in the captured image is farther. At the position close to the far-view boundary 230, the interval between the two is closer in the captured image.

[0084] Specifically, near the near-view boundary 220, the target image captured by the camera module 200 is usually larger, while near the far-view boundary 230, the target image is relatively smaller. Therefore, on the larger target image, the distance between the indicator mark 210 and the range mark 510 is farther, which is conducive to the doctor to identify the mark more clearly and avoid visual confusion. In the image of the smaller target, the distance between the indicator mark 210 and the range mark 510 is closer. This design can avoid the situation where the range mark 510 is not within the target area when the indicator mark 210 and the range mark 510 are farther apart.

[0085] The core of this structural design is that the indicator mark 210 and the range mark 510 are always in the target area, so that the doctor can accurately judge the actual distance between the target and the camera module 200, thereby collecting clearer images. By ensuring that the relative position relationship between the indicator mark 210 and the range mark 510 is maintained at different distances, the doctor can quickly make adjustments in a dynamic surgical environment, improving the accuracy of observation and judgment.

[0086] According to an alternative embodiment, referring to Figure 5 , Figure 6 , the optical axis of the range light source 500 is parallel to the optical axis of the camera module 200. This design enables the range light source 500 to form a clear and consistent range mark 510 in the image acquisition area of ​​the camera module 200. This structure ensures that the spacing between the range mark 510 and the indicator mark 210 remains consistent at different shooting distances, thereby facilitating the doctor to quickly determine the relationship between the position of the target and the camera module 200.

[0087] In this configuration, the doctor can more intuitively understand the actual position of the target when observing the image. Since the parallel optical axis of the range light source 500 does not interfere with the imaging of the camera module 200, the doctor can clearly see the boundary of the imaging area, which is crucial for optimizing the adjustment and operation during the operation.

[0088] According to an alternative embodiment, referring to Figure 7 , Figure 8, the light emitted by the range light source 500 is parallel light. This configuration enables the range light source 500 to form a range mark 510 of uniform size and brightness in the image acquisition area of ​​the camera module 200, which facilitates the doctor to make accurate judgments during the observation process.

[0089] According to an alternative embodiment, referring to Figure 1 , Figure 2 , the range light source 500 is located on one side of the camera module 200, and the mark light source 400 is located on the other side of the camera module 200. Since the optical axis of the range light source 500 needs to intersect with the optical axis of the mark light source 400, this layout can increase the angle between the two within the limited space of the front housing 100. This configuration helps to effectively generate the indicator mark 210 and the range mark 510 with the required spacing.

[0090] In addition, the separate arrangement of the range light source 500 and the marking light source 400 can not only avoid the heat dissipation problem caused by the heat being concentrated together, but also keep the size of the front end housing 100 small. This design optimizes the size of the device while ensuring functionality, making the endoscope 10 more flexible and easy to use in a narrow operating environment.

[0091] Through this configuration, doctors can obtain clear visual guidance when operating, and the reasonable spacing between the range mark 510 and the indicator mark 210 also helps to improve the accuracy and effectiveness of imaging. This design not only improves the overall performance of the system, but also provides doctors with a more convenient and intuitive operating experience.

[0092] According to an optional embodiment, the light emitted by the marking light source 400 is parallel light. In this way, the marking light source 400 can form a marking light spot 420 of uniform size and brightness in the image acquisition area, which helps doctors to quickly identify and locate.

[0093] According to an alternative embodiment, referring to Figure 1 , Figure 2 , the marking light source 400 and the illumination light source 300 are located on the same side of the camera module 200. This design not only ensures that the clear imaging area 240 has better lighting conditions, but also improves the doctor's operating efficiency in a complex environment and ensures the quality of the captured image. By reasonably configuring the position and type of the light source, these designs effectively enhance the user experience of the endoscope 10, allowing doctors to observe and judge the target position more accurately in a dynamic surgical environment.

[0094] Specifically, since the optical axis of the marking light source 400 intersects with the optical axis of the camera module 200, the illumination light source 300 is arranged on the same side of the camera module 200, especially on the side of the marking light source 400 away from the camera module 200. This configuration can make the optical axis of the marking light source 400 face away from the illumination light source 300, avoiding the situation where the optical axis of the illumination light source 300 overlaps with the optical axis of the marking light source 400 in the clear imaging area 240, because once they overlap, the brightness of the illumination light source 300 is too high, which will affect the visibility of the marking light spot 420. In this way, the doctor can more easily identify the marking light spot 420, thereby improving the accuracy of observation and judgment of the target.

[0095] According to an optional embodiment, the optical axis of the illumination light source 300 intersects with the optical axis of the camera module 200, and the intersection position is located outside the clear imaging area 240. This design can avoid the interference of the illumination light source 300 on the imaging of the camera module 200, thereby improving the clarity and quality of the image.

[0096] In another optional embodiment, the optical axis of the illumination light source 300 is parallel to the optical axis of the camera module 200, and the optical axis of the illumination light source 300 intersects with the optical axis of the marking light source 400, and the intersection position is located outside the clear imaging area 240. This configuration also helps to maintain the clarity of the image, avoids the brightness being concentrated on the part illuminated by the marking light source 400, and thus improves the visibility of the marking light spot 420.

[0097] Specifically, the illumination light source 300 is a point light source, and the brightness is highest at the center. If the center of the point light source coincides with the irradiation site of the marking light source 400, it may be difficult for the doctor to distinguish the marking light spot 420 when observing the image. Therefore, by designing the intersection of the illumination light source 300 and the marking light source 400 to be outside the clear imaging area 240, such overlap can be avoided to a certain extent, thereby improving the recognizability of the marking light spot 420. This design is beneficial for doctors to quickly determine the target position during surgery and improve surgical efficiency and accuracy.

[0098] A second aspect of this embodiment describes an endoscope in detail.

[0099] Reference Fig.11 , an embodiment of the present application provides an endoscope 10, including a front end assembly of the above embodiment. In this way, the endoscope 10 has the beneficial effects of the above front end assembly, which will not be repeated here. The endoscope 10 referred to in the embodiment of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of the endoscope 10.

[0100] The third aspect of this embodiment describes in detail an image acquisition method.

[0101] An embodiment of the present application provides an image acquisition method, which is applied to an endoscope of the above embodiment, comprising the following steps:

[0102] S001. Capture an image of the target area through the camera module 200.

[0103] S002. Adjust the position of the front housing 100 so that the indicator mark 210 in the image captured by the camera module 200 is located at the center of the target.

[0104] S003. Adjust the distance between the front housing 100 and the target so that the marking spot 420 in the image captured by the camera module 200 is located in the area between the indication mark 210 and the range mark 510, thereby obtaining a clear image of the target.

[0105] The fourth aspect of this embodiment provides a detailed description of an image analysis method.

[0106] An embodiment of the present application provides an image analysis method, including an image acquisition method in the above embodiment, which determines the size of the target based on the relative size of the target and the marking spot 420 in the clear image.

[0107] Exemplarily, the marking spot 420 is generated by parallel light irradiation, and after irradiating the target position, the size of the marking spot 420 is determined. The area of ​​the target area can be calculated by the area ratio of the marking spot 420 and the target area in the image captured by the camera module 200.

[0108] For example, the method can determine the size of the stone, helping doctors to judge the volume of the stone so as to effectively remove the stone and avoid the situation where the stone cannot be removed through the ureter due to misjudgment. This not only improves the efficiency and effect of the operation, but also reduces the pain and surgical risks of the patient. Through such a design, the endoscope 10 can provide more accurate information during the target analysis and processing process to ensure the success rate and safety of the operation.

[0109] It is understandable that in this embodiment, the target 20 may be a lesion, a foreign body, etc., and the specific type is not limited. The method is applicable to a variety of medical or tubular object foreign body detection scenarios.

[0110] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A front end assembly, applied to an endoscope (10), characterized in that: include: Front end housing (100); A camera module (200) disposed on the front housing (100) and used for collecting images, the camera module (200) having a preset near-view boundary (220) and a far-view boundary (230) to limit a clear imaging area (240) of the camera module (200); An illumination light source (300), arranged on the front end housing (100) and used for illumination; as well as, A marking light source (400), arranged in the front end housing (100), and used to form a marking light spot (420) in the image acquisition area of ​​the camera module (200); The image captured by the camera module (200) comprises an indication mark (210) and a range mark (510), the indication mark (210) being used to indicate the optical axis of the camera module (200), and the range mark (510) being arranged at an interval from the indication mark (210); the optical axis of the marking light source (400) intersects with the optical axis of the camera module (200) to form a first intersection point (410), and the first intersection point (410) is located at the near view boundary (220) or the far view boundary (230); When the first intersection point (410) is located at the near view boundary (220), in the image captured at the far view boundary (230), the optical axis of the marking light source (400) intersects with the range mark (510); When the first intersection point (410) is located at the distant view boundary (230), in the image captured at the near view boundary (220), the optical axis of the marking light source (400) intersects with the range mark (510).

2. A front end assembly according to claim 1, characterized in that: The indicator mark (210) is arranged on the lens of the camera module (200), the optical axis of the camera module (200) passes through the center point of the indicator mark (210), and the indicator mark (210) is used to shield light of at least a part of the wavelength band; And / or, the range mark (510) is arranged on the lens of the camera module (200), and in the image captured by the camera module (200) in the clear imaging area (240), the marking light spot (420) is located in the area between the range mark (510) and the indication mark (210).

3. A front end assembly according to claim 1, characterized in that: It also includes a range light source (500) disposed on the front end housing (100), the range light source (500) being used to form the range mark (510) within the image acquisition area of ​​the camera module (200); In the image captured by the camera module (200) in the clear imaging area (240), the marking light spot (420) is located in the area between the range mark (510) and the indication mark (210).

4. A front end assembly according to claim 3, characterized in that: The optical axis of the range light source (500) intersects with the optical axis of the camera module (200), and the intersection position is located in an area outside the clear imaging area (240); Alternatively, the optical axis of the range light source (500) is parallel to the optical axis of the camera module (200).

5. A front end assembly according to claim 4, characterized in that: The light emitted by the range light source (500) is parallel light; And / or, the range light source (500) is located on one side of the camera module (200), and the marking light source (400) is located on the other side of the camera module (200).

6. A front end assembly according to claim 1, characterized in that: The light emitted by the marking light source (400) is parallel light; And / or, the marking light source (400) and the illumination light source (300) are located on the same side of the camera module (200).

7. A front end assembly according to claim 1, characterized in that: The optical axis of the illumination light source (300) intersects with the optical axis of the camera module (200), and the intersection position is located in an area outside the clear imaging area (240); Alternatively, the optical axis of the illumination light source (300) is parallel to the optical axis of the camera module (200), the optical axis of the illumination light source (300) intersects with the optical axis of the marking light source (400), and the intersection position is located in an area outside the clear imaging area (240).

8. An endoscope, characterized in that: A front-end component comprising any one of claims 1-7.

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