CN218356171U - Fluorescence endoscope imaging device and system - Google Patents
Fluorescence endoscope imaging device and system Download PDFInfo
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- CN218356171U CN218356171U CN202221564184.0U CN202221564184U CN218356171U CN 218356171 U CN218356171 U CN 218356171U CN 202221564184 U CN202221564184 U CN 202221564184U CN 218356171 U CN218356171 U CN 218356171U
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Abstract
The utility model relates to a fluorescence endoscope image device and system. The fluorescence endoscope imaging device comprises: an illumination assembly for providing multi-band probe light; the first objective lens is arranged on a transmission light path of the optical signal and used for receiving reflected light reflected by the detection light in the area to be detected; the steering assembly is arranged on an emergent optical axis of the first objective lens and is used for separating the reflected light emitted by the first objective lens so as to separate visible light and fluorescence and enable the visible light and the fluorescence to be emitted in different directions; the second objective lens is arranged on a visible light emergent optical axis or a fluorescence emergent optical axis of the steering assembly and is used for receiving the visible light or the fluorescence emergent from the steering assembly; and the imaging assembly is used for receiving the visible light and generating a visible light image, receiving the fluorescence and generating a fluorescence image. The fluorescence endoscope imaging device can generate visible light images and fluorescence images with the same definition, and further can generate high-quality fusion images.
Description
Technical Field
The utility model relates to an endoscope technical field especially relates to fluorescence endoscope image device and system.
Background
Currently, fluorescence endoscopes require at least 2-way optical imaging, such as visible light imaging and fluorescence imaging.
However, since the wavelengths of the visible light and the fluorescence are different and the focal lengths are also different, the imaging definition of the visible light and the fluorescence on the same image sensor is different, and the fused image is not clear.
In addition, the current imaging scheme of the fluorescence endoscope mostly adopts the same image sensor to carry out time-sharing acquisition, and a method of post-image processing realizes the fusion of the imaging device of the fluorescence endoscope. Due to time-sharing acquisition, motion blur exists among video frames, the influence on image registration and fusion is large, and the quality of later-stage images is low.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a fluorescence endoscope imaging device and system for the problem of blurred fused images.
A fluorescence endoscopic imaging apparatus, comprising:
an illumination assembly for providing multi-band probe light;
the first objective lens is arranged on a transmission light path of the detection light and is used for receiving reflected light of the detection light reflected in the area to be detected;
the steering assembly is arranged on an emergent optical axis of the first objective lens and is used for separating the reflected light emitted by the first objective lens so as to separate visible light and fluorescence and enable the visible light and the fluorescence to be emitted in different directions;
the second objective lens is arranged on a visible light emergent optical axis or a fluorescence emergent optical axis of the steering assembly and used for receiving the visible light or the fluorescence emergent from the steering assembly;
an imaging assembly for receiving the visible light and generating a visible light image, and receiving the fluorescence and generating a fluorescence image.
The fluorescence endoscope imaging device provides multiband detection light through the illumination component to illuminate the target area so as to promote the area to be detected to reflect reflected light containing visible light and fluorescence; visible light and fluorescence are emitted to the steering assembly after passing through the first objective lens, the steering assembly separates the visible light and the fluorescence emitted by the first objective lens, the visible light and the fluorescence are emitted in different directions, and the visible light or the fluorescence is processed by the second objective lens so as to adjust the optimal imaging surface position of the visible light or the fluorescence; it can be understood that one of the visible light and the fluorescence passes through the first objective lens and the second objective lens, and the other passes through only the first objective lens, then the optimal imaging surface of the fluorescence and the visible light can be positioned on the imaging component by selecting the first objective lens and the second objective lens with proper parameters and placing the second objective lens at a proper position, and the fluorescence and the visible light are separated out as the reflected light of the detection light reflected in the area to be detected; therefore, the visible light and the fluorescence can form a clear visible light image and a fluorescence image with the same definition on the imaging assembly; in addition, the visible light and the fluorescence are collected simultaneously, and the images and the fluorescence images have no motion time difference, so that motion blur between video frames cannot be caused; therefore, the fused image generated by fusing the visible light image and the fluorescence image is a clear image, and the imaging quality of the fused image is high.
In one embodiment, the second objective lens is disposed on the fluorescence emission optical axis of the turning component and is used for receiving the fluorescence emitted from the turning component.
In one embodiment, the imaging assembly comprises a first image sensor and a second image sensor, the first image sensor is arranged on the emergent optical axis of the second objective lens and is used for collecting the fluorescence emitted by the second objective lens to generate the fluorescence image; the second image sensor is arranged on a visible light emergent optical axis of the steering assembly and used for collecting visible light emitted by the steering assembly and generating the visible light image.
In one embodiment, the turning assembly includes a turning prism for separating the visible light and the fluorescent light.
In one embodiment, the turning prism comprises a visible light emitting surface and a fluorescent light emitting surface, the imaging system further comprises a visible light filter and a fluorescent light filter, and the visible light filter is arranged on the visible light emitting surface of the turning prism; the fluorescent filter is arranged on the fluorescent light-emitting surface of the steering prism.
In one embodiment, the turning assembly includes a first turning prism and a second turning prism, the first turning prism is used for separating the visible light from the fluorescent light, and the second turning prism is arranged on the fluorescent light emitting surface of the first turning prism and used for adjusting the emitting direction of the fluorescent light.
In one embodiment, the steering assembly further comprises a visible light filter and a fluorescent filter, wherein the fluorescent filter is arranged between the first steering prism and the second steering prism; the visible light filter is arranged on the visible light emergent surface of the first steering prism.
In one embodiment, the fluorescence endoscope imaging device further comprises a lens tube, and the first objective lens and the emission end of the illumination assembly are arranged in the lens tube.
In one embodiment, the illumination assembly includes a light source for generating the probe light, a first optical fiber and a second optical fiber, both of which are used for conducting and emitting the probe light, and the first optical fiber and the second optical fiber are disposed in the lens tube and symmetrically distributed on both sides of the first objective lens.
A fluorescence endoscope imaging system, comprising a display, a processing assembly and a fluorescence endoscope imaging device as described in any of the above, wherein the processing assembly is connected with the imaging assembly and is used for fusing the visible light image and the fluorescence image to generate a fused image of the area to be detected; the display is connected with the processing component and is used for displaying at least one of the visible light image, the fluorescence image and the fusion image.
According to the fluorescence endoscope imaging system, the visible light image and the fluorescence image which are clear and have the same definition are formed through the fluorescence endoscope imaging device, so that the visible light image and the fluorescence image are fused by the processing assembly, the fused images of the to-be-detected area are generated to have higher definition, and the imaging quality of the fused images is ensured; after the visible light image, the fluorescence image and the fusion image are generated, at least one of the visible light image, the fluorescence image and the fusion image is displayed through a display according to the selection of a user, so that the observation and the distinction of the user are facilitated, the user can distinguish a normal tissue and a lesion tissue (the lesion tissue can stay in fluorescence for imaging), and clear boundary information is obtained.
Drawings
Fig. 1 to 3 are schematic structural views of a fluorescence endoscope imaging device in different embodiments;
FIG. 4 is a schematic structural diagram of a fluorescence endoscope imaging system in one embodiment.
Description of reference numerals:
1-fluorescence endoscope imaging device, 10-area to be detected, 11-illumination component, 12-first objective lens, 13-steering component, 131-first steering prism, 132-second steering prism, 14-second objective lens, 15-imaging component, 151-first image sensor, 152-second image sensor, 16-fluorescence filter, 17-visible light filter, 2-processing component and 3-display.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
It can be understood that the light with different wavelengths has different propagation speeds and different refractive indexes in the medium, so that the focal length of the same lens is different for the light with different wavelengths, and the longer the wavelength is, the larger the focal length is. Because the wavelength ranges of the visible light wave band (460 nm-760 nm) and the near infrared wave band (800 nm-850 nm) are different, the fluorescence belongs to the near infrared wave band, the wavelength of the fluorescence is longer than the wavelength of the visible light, and for the same lens, the focal length corresponding to the fluorescence is longer than the focal length corresponding to the visible light. According to the pinhole imaging principle, only when the distance from the imaging surface to the optical center is equal to the image distance, the object can form the clearest image. Let the object distance be u, the image distance be v, the focal length be f, the relationship of the three be: 1/v +1/u =1/f, based on this, if fluorescence and visible light are imaged through the same lens, the positions of the optimal imaging surfaces of the fluorescence and the visible light are different, and the definition of imaging of the visible light and the fluorescence on the same image sensor is different, so that the fused image after fusion is not clear.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a fluorescence endoscope imaging device 1 according to an embodiment of the present invention, and the fluorescence endoscope imaging device 1 according to an embodiment of the present invention includes an illumination assembly 11, a first objective lens 12, a steering assembly 13, a second objective lens 14, and an imaging assembly 15. The illumination assembly 11 is used for providing multi-band detection light; the first objective lens 12 is arranged on the transmission light path of the detection light and used for receiving the reflected light reflected by the detection light in the area to be detected 10; the steering assembly 13 is disposed on an exit optical axis of the first objective lens 12, and is configured to separate the reflected light exiting from the first objective lens 12 to separate visible light and fluorescence, and enable the visible light and the fluorescence to exit in different directions; the second objective lens 14 is disposed on the visible light emergent optical axis or the fluorescence emergent optical axis of the turning component 13, and is used for receiving the visible light or the fluorescence emergent from the turning component 13; the imaging assembly 15 is configured to receive visible light and generate a visible light image, and receive fluorescence and generate a fluorescence image.
Herein, it is understood that the wavelength range of the probe light generated by the illumination assembly 11 includes a visible light band (460 nm to 760 nm) and a near infrared band (800 nm to 850 nm), and the wavelength range of the probe light generated by the illumination assembly 11 is, for example, 460nm to 850nm. Wherein the first objective lens 12 and the second objective lens 14 each comprise at least one singlet lens. The turning component 13 may include a turning prism, and due to the wavelength difference between the visible light and the fluorescent light, the reflected light containing the visible light and the fluorescent light will exit in different directions after passing through the turning prism, so that the separation of the visible light and the fluorescent light can be realized.
Illustratively, the second objective lens 14 is disposed on a fluorescence emission optical axis of the steering assembly 13, and is configured to receive fluorescence emitted from the steering assembly 13, so that the fluorescence passes through the first objective lens 12 and the second objective lens 14 to be imaged on the imaging assembly 15, the visible light passes through the first objective lens 12 to be imaged on the imaging assembly 15, and by selecting the first objective lens 12 and the second objective lens 14 with appropriate parameters and placing the second objective lens 14 at an appropriate position, an optimal imaging surface of the fluorescence and the visible light can be both imaging surfaces of the imaging assembly 15, and further the fluorescence and the visible light can form a clear image with the same definition.
It is understood that the imaging assembly 15 may include one or more image sensors, when the imaging assembly 15 may include only one image sensor, by selecting the first objective lens 12 and the second objective lens 14 with suitable parameters and placing the second objective lens 14 at a suitable position, the optimal imaging planes of the fluorescence and the visible light may be the imaging plane of the same image sensor, and the fluorescence and the visible light are the reflected light of the detection light reflected in the region to be detected 10 and separated; thus, the visible light and the fluorescence can be imaged with the same resolution on the same image sensor, and when the imaging assembly 15 includes only one image sensor, the imaging assembly 15 can also form the visible light image and the fluorescence image with the same resolution. When the imaging component 15 may include only one image sensor, the first objective lens 12 and the second objective lens 14 with suitable parameters are selected, and the second objective lens 14 is placed at a suitable position, so that the optimal imaging surfaces of the fluorescence and the visible light can be the imaging surfaces of the corresponding image sensors, and the visible light and the fluorescence are imaged separately by the plurality of image sensors, so as to improve the imaging quality of the visible light image and the fluorescence image.
In the embodiment, the target area is illuminated by the multi-band detection light provided by the illumination assembly 11, so that the area to be detected 10 is prompted to reflect the reflected light containing visible light and fluorescence; visible light and fluorescence are emitted to the steering component 13 after passing through the first objective lens 12, the steering component 13 separates the visible light and the fluorescence emitted by the first objective lens 12, the visible light and the fluorescence are emitted in different directions, and the visible light or the fluorescence is processed by the second objective lens 14 so as to adjust the optimal imaging surface position of the visible light or the fluorescence; it can be understood that one of the visible light and the fluorescence passes through the first objective lens 12 and the second objective lens 14, and the other passes through only the first objective lens 12, then by selecting the first objective lens 12 and the second objective lens 14 with suitable parameters and placing the second objective lens 14 at a suitable position, the optimal imaging surface of the fluorescence and the visible light can be located on the imaging assembly 15, and the fluorescence and the visible light are separated from the reflected light of the detection light reflected in the region to be detected 10; therefore, the visible light and the fluorescence can form a clear visible light image and a fluorescence image with the same definition on the imaging assembly 15; in addition, the visible light and the fluorescence are collected simultaneously, and the images and the fluorescence images have no motion time difference, so that motion blur between video frames cannot be caused; therefore, the fused image generated by fusing the visible light image and the fluorescence image is a clear image, and the imaging quality of the fused image is high.
In one embodiment, as shown in fig. 2, the imaging assembly 15 includes a first image sensor 151 and a second image sensor 152, the first image sensor 151 is disposed on the emergent optical axis of the second objective lens 14, and is used for collecting the fluorescence emitted from the second objective lens 14 to generate a fluorescence image; the second image sensor 152 is disposed on the visible light outgoing optical axis of the steering assembly 13, and is configured to collect the visible light outgoing from the steering assembly 13 and generate a visible light image.
The first image sensor 151 and the second image sensor 152 may be the same image sensor or different image sensors.
It is understood that the optimal response wavelengths of the different types of image sensors are different, and since the wavelength of the fluorescence is different from that of the visible light, in order to improve the imaging quality of the fluorescence and the visible light, the first image sensor 151 and the second image sensor 152 may be different types of image sensors, and the first image sensor 151 has a higher imaging quality of the fluorescence and the second image sensor 152 has a higher imaging quality of the visible light. In addition, the first image sensor 151 images fluorescence, and the second image sensor 152 images visible light, so that the optimal imaging surfaces of the fluorescence and the visible light are not limited to the same imaging surface, and the parameter selection of the first objective lens 12, the parameter selection of the second objective lens 14 and the position selection of the second objective lens 14 have higher flexibility, which is beneficial to improving the flexibility of the endoscope structure design and reducing the endoscope size.
In one embodiment, the turning assembly 13 includes a turning prism for separating the visible light and the fluorescent light.
The turning prism is a polyhedron made of transparent materials (such as glass, crystal and the like), and a transparent object is formed by planes which are intersected in pairs but are not parallel to each other for splitting light or dispersing light beams. The light of different wavelengths has different refractive indexes and different exit directions from the turning prism, so that the light of different wavelengths is separated. Based on this, the visible light and the fluorescent light can be separated by the turning prism.
In one embodiment, the turning prism includes a visible light emitting surface and a fluorescent light emitting surface, the imaging system further includes a visible light filter 17 and a fluorescent filter 16, the visible light filter 17 is disposed on the visible light emitting surface of the turning prism; the fluorescence filter 16 is disposed on the fluorescence exit surface of the turning prism.
The visible light filter 17 is used for filtering light beams not belonging to the visible light waveband range, and the fluorescent light filter 16 is used for filtering light beams not belonging to the fluorescent waveband range.
In the embodiment, the visible light filter 17 is arranged on the visible light emergent surface of the steering prism, so that the visible light emitted from the steering prism passes through the visible light filter 17, the light emitted from the visible light emergent surface is filtered, the negative influence of stray light on visible light imaging is avoided, and the image quality of a visible light image is ensured; similarly, the fluorescence filter 16 is disposed on the fluorescence exit surface of the turning prism to filter light emitted from the fluorescence exit surface, so as to avoid negative influence of stray light on fluorescence imaging and ensure image quality of the fluorescence image.
In one embodiment, as shown in fig. 3, the turning assembly 13 includes a first turning prism 131 and a second turning prism 132, the first turning prism 131 is used for separating visible light and fluorescent light, and the second turning prism 132 is disposed on the fluorescent light emitting surface of the first turning prism 131 for adjusting the emitting direction of the fluorescent light.
It can be understood that by separating the visible light and the fluorescence through the first turning prism 131, the emitting directions of the visible light and the fluorescence may be relatively close, and when the imaging assembly 15 images the visible light and the fluorescence, the visible light and the fluorescence may interfere with each other and affect the respective imaging qualities. After the second turning prism 132 is disposed on the fluorescence light-emitting surface of the first turning prism 131, the exit direction of the fluorescence is adjusted by the second turning prism 132, so that the exit directions of the visible light and the fluorescence further deviate, the visible light and the fluorescence do not interfere with each other, and the imaging quality of the visible light and the fluorescence is ensured.
In one embodiment, as shown in fig. 3, the turning assembly 13 further includes a visible light filter 17 and a fluorescent filter 16, the fluorescent filter 16 being disposed between the first turning prism 131 and the second turning prism 132; the visible light filter 17 is disposed on the visible light exiting surface of the first turning prism 131.
In the embodiment, the visible light filter 17 is arranged on the visible light emergent surface of the steering prism, so that the visible light emitted from the steering prism passes through the visible light filter 17, the light emitted from the visible light emergent surface is filtered, the negative influence of stray light on visible light imaging is avoided, and the image quality of a visible light image is ensured; after the second turning prism 132 is disposed on the fluorescence emitting surface of the first turning prism 131, the fluorescence filter 16 is disposed between the first turning prism 131 and the second turning prism 132, so that the fluorescence filter 16 is fixed on the fluorescence emitting surface of the turning prism, and the light emitted from the first turning prism 131 is filtered, thereby avoiding the negative effect of stray light on fluorescence imaging and ensuring the image quality of fluorescence images.
In one embodiment, the fluorescence endoscopic imaging device 1 further comprises a lens tube, within which the first objective lens 12 and the emission end of the illumination assembly 11 are disposed.
In this embodiment, the first objective lens 12 and the emitting end of the illumination assembly 11 are disposed in the lens tube, when the lens tube moves, the first objective lens 12 and the emitting end of the illumination assembly 11 move synchronously, and when the emitting end of the illumination assembly 11 emits detection light to the region to be detected, the first objective lens 12 is always located on the transmission light path of the reflected light in the region 10 to be detected, and can receive the reflected light of the detection light reflected in the region 10 to be detected, so as to obtain the visible light image and the fluorescence image corresponding to the region 10 to be detected.
In one embodiment, the illumination assembly 11 includes a light source for generating probe light, a first optical fiber and a second optical fiber both for conducting and emitting the probe light, the first optical fiber and the second optical fiber being disposed in the lens tube and symmetrically distributed on both sides of the first objective lens 12.
The light source can be medical cold light source meeting medical standard, such as halogen lamp light source, xenon lamp light source and LED cold light source. Through making first optic fibre and second optic fibre and symmetric distribution in camera lens both sides to all conduct and launch the detecting light through first optic fibre and second optic fibre, thereby make the detecting light source can form even light field, avoid the imaging quality problem that detecting light field light shade uneven leads to.
With reference to fig. 4, fig. 4 shows a schematic structural diagram of a fluorescence endoscope imaging system in an embodiment of the present invention, and in some embodiments, a fluorescence endoscope imaging system is provided, which includes a display 3, a processing component 2 and a fluorescence endoscope imaging apparatus 1 as described above, where the processing component 2 is connected to an imaging component 15 for fusing a visible light image and a fluorescence image to generate a fused image of a region 10 to be detected, and a multiband wavelet fusion method or a multiband laplacian pyramid fusion method may be adopted to realize fusion of the visible light image and the fluorescence image. A display 3 is connected to the processing assembly 2 for displaying at least one of the visible light image, the fluorescence image and the fused image.
Wherein the display 3 displays at least one of the visible light image, the fluorescence image, and the fusion image according to a user selection.
In the embodiment, after the clear visible light image and the fluorescence image with the same definition are generated by the fluorescence endoscope imaging device, the visible light image and the fluorescence image can be fused by the processing assembly to generate a fused image of the region to be detected 10 with higher definition, so that the imaging quality of the fused image is ensured; after the visible light image, the fluorescence image and the fusion image are generated, the display displays at least one of the visible light image, the fluorescence image and the fusion image according to the selection of the user, so that the user can conveniently observe and distinguish, and the user can distinguish a normal tissue and a lesion tissue (the lesion tissue can be subjected to fluorescence resident imaging) to obtain clear boundary information.
In application, the fluorescence endoscope navigation is mainly realized by marking a target organ with a specific 'fluorescence color', and the contrast ratio of the fluorescence marking color to the color inside the abdominal cavity is larger, so that a doctor can judge the boundary of a fluorescence area in an operation more conveniently. However, the doctor needs to observe the fluorescence for a long time during the operation, and if the contrast is too large, the doctor is likely to feel dazzling, which may cause eye fatigue of the doctor. Therefore, a balance point needs to be taken between "contrast" and "visual fatigue". At present, green is often selected as the fluorescent color expression, which is helpful for balancing "contrast" and "visual fatigue" on the one hand, and is also more helpful for prompting doctors to find fluorescence on the other hand. However, the green fluorescence is processed by fusing a single color, and the intensity of the green fluorescence can be judged only by the fusion degree of the green fluorescence on the fluorescence map, and the discrimination is weak. Therefore, the color fluorescence technology is adopted, and in contrast, the color fluorescence technology introduces 'step-change fluorescence color', the fluorescence color change is marked by the gradual change color to express the intensity change of the fluorescence 'weak-medium-strong', and the differentiation degree of the fluorescence intensity is enriched on the aspect of visual expression. In the clinical operation application scenario, if the discrimination of the fused image needs to be further increased, a color fluorescence mode scheme can be adopted. Under the color fluorescence, doctors can distinguish the intensity step change of the fluorescence more intuitively through the color step change from yellow to green, so as to judge the alternate boundary of the intensity of the fluorescence more accurately, wherein the color matching scheme of the product is designed according to the use habit of users, and the user comfort is taken as the principle.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A fluorescence endoscopic imaging apparatus, comprising:
an illumination assembly for providing multi-band probe light;
the first objective lens is arranged on a transmission light path of the detection light and used for receiving reflected light reflected by the detection light in the area to be detected;
the steering assembly is arranged on an emergent optical axis of the first objective lens and is used for separating the reflected light emitted by the first objective lens so as to separate visible light and fluorescence and enable the visible light and the fluorescence to be emitted in different directions;
the second objective lens is arranged on a visible light emergent optical axis or a fluorescence emergent optical axis of the steering assembly and used for receiving the visible light or the fluorescence emergent from the steering assembly;
an imaging assembly for receiving the visible light and generating a visible light image, and receiving the fluorescence and generating a fluorescence image.
2. The fluorescence endoscope imaging device according to claim 1, wherein the second objective lens is disposed on a fluorescence emission optical axis of the steering assembly for receiving fluorescence emitted from the steering assembly.
3. The fluorescence endoscope imaging device according to claim 2, characterized in that the imaging assembly comprises a first image sensor and a second image sensor, the first image sensor is arranged on the emergent optical axis of the second objective lens and is used for collecting the fluorescence emitted by the second objective lens and generating the fluorescence image; the second image sensor is arranged on a visible light emergent optical axis of the steering assembly and used for collecting visible light emergent from the steering assembly and generating the visible light image.
4. A fluorescence endoscopic imaging apparatus as claimed in claim 1, wherein said steering assembly comprises a steering prism for separating the visible light and the fluorescence light.
5. The fluorescence endoscope imaging device according to claim 4, wherein the turning prism comprises a visible light exit surface and a fluorescence exit surface, the imaging device further comprises a visible light filter and a fluorescence filter, the visible light filter is arranged on the visible light exit surface of the turning prism; the fluorescent filter is arranged on the fluorescent light-emitting surface of the steering prism.
6. A fluorescence endoscope imaging device according to any one of claims 1 to 5, characterized in that said steering assembly comprises a first steering prism for separating said visible light from said fluorescence and a second steering prism provided on the fluorescence exit surface of said first steering prism for adjusting the exit direction of said fluorescence.
7. The fluorescence endoscopic imaging apparatus of claim 6, wherein the steering assembly further comprises a visible light filter and a fluorescence filter disposed between the first steering prism and the second steering prism; the visible light filter is arranged on the visible light emergent surface of the first steering prism.
8. The fluorescence endoscopic imaging apparatus according to claim 1, further comprising a scope tube within which said first objective lens and an emission end of said illumination assembly are disposed.
9. The fluorescence endoscopic imaging apparatus according to claim 8, wherein said illumination assembly comprises a light source for generating said probe light, a first optical fiber and a second optical fiber, both for conducting and emitting said probe light, said first optical fiber and said second optical fiber being disposed within said objective tube and symmetrically distributed on both sides of said first objective lens.
10. A fluorescence endoscope imaging system comprising a display, a processing assembly and a fluorescence endoscope imaging device according to any one of claims 1 to 9, said processing assembly being connected to said imaging assembly for fusing said visible light image and said fluorescence image to generate a fused image of said area to be detected; the display is connected with the processing component and is used for displaying at least one of the visible light image, the fluorescence image and the fusion image.
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| CN117398043A (en) * | 2023-12-15 | 2024-01-16 | 广东欧谱曼迪科技股份有限公司 | 3D fluorescent endoscope, imaging method, device and debugging method |
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| CN117398043A (en) * | 2023-12-15 | 2024-01-16 | 广东欧谱曼迪科技股份有限公司 | 3D fluorescent endoscope, imaging method, device and debugging method |
| CN117398043B (en) * | 2023-12-15 | 2024-07-02 | 广东欧谱曼迪科技股份有限公司 | 3D fluorescent endoscope, imaging method, device and debugging method |
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