Endoscope system

Abstract

The invention discloses an endoscope system. The endoscope system includes an endoscope host and a substance analysis mechanism. An endoscope tube and an optical imaging module are connected to the endoscope host, at least part of the optical imaging module is arranged in the endoscope tube, and the optical imaging module is configured to illuminate predetermined tissue and image an illumination area; the substance analysis mechanism comprises an analyzer, a light source generator and a substance analysis optical fiber, the substance analysis optical fiber is arranged in the endoscope tube and connected with the analyzer and the light source generator, and the substance analysis optical fiber is configured to converge test light generated by the light source generator, irradiate the test light to preset tissue and perform spectral information collection on the irradiation position; and then transmitting to an analyzer for analysis. The endoscope system can carry out component analysis on diseases in a view field while carrying out microscopic amplification on the diseases, an obtained analysis result is fed back to a doctor, the diagnosis period of the diseases is greatly shortened, and the diagnosis cost of the diseases is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an endoscope system. Background Art

[0002] At present, endoscopes are widely used in clinical medical operations, providing doctors with microscopic magnified visual diagnostic technology for diseases in the body. However, in the diagnosis and treatment of some diseases, it is not enough to rely solely on visual diagnosis. It is necessary to further analyze the components of the disease and then give different treatment plans based on different components, such as the diagnosis of stones in urology.

[0003] At present, the analysis of the components of a patient's disease mainly relies on in vitro precision instrument detection, such as Fourier transform infrared spectrometer and Raman spectrometer. However, although in vitro detection can achieve high detection accuracy, the detection cycle is too long, often taking about 1 week, which brings great inconvenience to medical diagnosis. Summary of the invention

[0004] The main purpose of the present application is to provide an endoscope system that can microscopically magnify the disease while performing component analysis on the disease within the field of view, and feed back the analysis results to the doctor, thereby greatly shortening the diagnosis cycle and cost of the disease.

[0005] According to one aspect of the present application, there is provided an endoscope system, comprising:

[0006] An endoscope host, to which an endoscope tube and an optical imaging module are connected, wherein the optical imaging module is at least partially disposed in the endoscope tube, and the optical imaging module is configured to illuminate a predetermined tissue and image an illuminated area;

[0007] A material analysis mechanism, the material analysis mechanism includes an analyzer, a light source generator and a material analysis optical fiber, the material analysis optical fiber is arranged in the endoscope tube and connected to the analyzer and the light source generator, the material analysis optical fiber is configured to converge the test light generated by the light source generator onto the predetermined tissue and collect spectral information at the irradiated position, and then transmit it to the analyzer for analysis.

[0008] Furthermore, the material analysis mechanism also includes a filter, which includes a reflection port, a light inlet and a light outlet, the light inlet is connected to the light source generator, the reflection port is connected to the analyzer, and the light outlet is connected to the material analysis optical fiber.

[0009] Further, the analyzer includes a spectrometer, and / or the light source generator includes a laser.

[0010] Furthermore, the material analysis optical fiber includes a detection end away from the light source generator, and the end face of the detection end includes at least one of a plane, a spherical surface, a parabola, a wedge surface, and a conical surface.

[0011] Furthermore, the material analysis optical fiber includes a detection end away from the light source generator, the detection end includes a convex arc segment and at least one frustum segment, the frustum segment and the convex arc segment are connected in sequence along the direction away from the light source generator, and the cross-section of the frustum segment gradually decreases along the direction away from the light source generator.

[0012] Further, the frustum segment includes a first frustum segment and a second frustum segment, and the first frustum segment, the second frustum segment and the convex arc segment are sequentially connected in a direction away from the light source generator;

[0013] The angle between the conical surface of the first frustum segment and the axis of the material analysis optical fiber is θ1, the angle between the conical surface of the second frustum segment and the axis of the material analysis optical fiber is θ2, and θ1<θ2.

[0014] Furthermore, the length of the conical surface of the first frustum segment is d1, the length of the conical surface of the second frustum segment is d2, and d1>d2.

[0015] Furthermore, the endoscope tube includes a hard pipe or a soft pipe.

[0016] Further, the endoscope tube comprises an inner tube body and an outer tube body, the outer tube body is sleeved on the outside of the inner tube body, and a light-transmitting gap is provided between the inner tube body and the outer tube body, and the light-transmitting gap is provided around the outer circumference of the inner tube body;

[0017] The optical imaging module comprises an optical lens group and a light guide bundle, wherein the optical lens group is arranged inside the inner tube body, and the light guide bundle is arranged in the light-transmitting gap;

[0018] The material analysis optical fiber is fixedly installed in the light passing gap.

[0019] Further, the endoscope tube comprises an inner tube body and an outer tube body, the outer tube body is sleeved on the outside of the inner tube body, and a light-transmitting gap is provided between the inner tube body and the outer tube body, the light-transmitting gap is provided around the outer circumference of the inner tube body, the inner tube body and the outer tube body are connected to form a junction position, and a mounting hole is provided at the junction position;

[0020] The optical imaging module comprises an optical lens group and a light guide bundle, wherein the optical lens group is arranged inside the inner tube body, and the light guide bundle is arranged in the light-transmitting gap;

[0021] The material analysis optical fiber is fixedly installed in the installation hole.

[0022] Furthermore, an instrument through hole is provided on the endoscope tube, and the material analysis optical fiber is detachably arranged in the instrument through hole.

[0023] Further, the substance analysis optical fiber includes at least one optical fiber body. When there are multiple optical fiber bodies, the multiple optical fiber bodies are arranged side by side to form a cylindrical strip structure; and / or,

[0024] The substance analysis optical fiber is used at least to detect light with a wavelength of 200 nm to 1400 nm.

[0025] Further, the wavelength of the light emitted by the light source generator is within a range of 785 nm to 1064 nm; and / or,

[0026] The detection wavelength of the analyzer includes 797.52nm to 1351.62nm; and / or,

[0027] The bandpass wavelength of the filter is 785±10nm to 830±10nm.

[0028] In the present application, by sending the endoscope tube of the endoscope host into the body of a human or animal, etc., at this time, the optical imaging module arranged in the endoscope tube can illuminate the predetermined tissue and image the illumination area, so that the medical staff can observe the location of the disease. At the same time, since the endoscope system in the present application is also provided with a material analysis mechanism, the material analysis mechanism has a material analysis optical fiber arranged in the endoscope tube, the material analysis optical fiber can converge the test light generated by the light source generator to the predetermined tissue and collect the spectral information of the irradiation position, and then transmit it to the analyzer for analysis, so that the disease can be analyzed at the scene of the doctor's examination and surgery. It can be seen that the endoscope system in the present application integrates a material analysis mechanism, and the setting of the material analysis mechanism can analyze the disease components while endoscopic examination, thereby greatly shortening the examination of the disease and the treatment cycle of the patient, which can bring great convenience to medical diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 A schematic diagram of the structure of the endoscope system disclosed in the embodiment of the present application when in use;

[0031] Figure 2It is a schematic diagram of the structure of a light beam when it is transmitted inside the material analysis optical fiber disclosed in the embodiment of the present application;

[0032] Figure 3 A front view of the end of a partial substance analysis optical fiber disclosed in an embodiment of the present application;

[0033] Figure 4 A front view of the end of another substance analysis optical fiber disclosed in an embodiment of the present application;

[0034] Figure 5 This is a schematic diagram of the end structure of an endoscope tube disclosed in an embodiment of the present application;

[0035] Figure 6 This is a schematic diagram of the end structure of another endoscope tube disclosed in an embodiment of the present application;

[0036] Figure 7 Schematic diagram of light loss of the light guide beam from visible light to near-infrared light guide beam of the present application.

[0037] The above drawings include the following reference numerals:

[0038] 10. Endoscope host; 11. Endoscope tube; 111. Inner tube body; 112. Outer tube body; 113. Light-through gap; 114. Mounting hole; 115. Instrument through hole; 116. Lighting element hole; 117. Air hole / water hole; 118. Optical lens hole; 12. Optical imaging module; 20. Material analysis mechanism; 21. Analyzer; 22. Light source generator; 23. Material analysis optical fiber; 231. First frustum segment; 232. Second frustum segment; 233. Convex arc segment; 24. Filter; 241. Reflection port; 242. Light inlet; 243. Light outlet; 40. Light beam; 50. Converging point. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0042] See also Figures 1 to 6 As shown, according to an embodiment of the present application, an endoscope system is provided, which includes an endoscope host 10 and a material analysis mechanism 20 .

[0043] Among them, the endoscope host 10 is connected to an endoscope tube 11 and an optical imaging module 12, the optical imaging module 12 is at least partially arranged in the endoscope tube 11, and the optical imaging module 12 is configured to illuminate the predetermined tissue and image the illuminated area; the material analysis mechanism 20 includes an analyzer 21, a light source generator 22 and a material analysis optical fiber 23, the material analysis optical fiber 23 is arranged in the endoscope tube 11 and connected to the analyzer 21 and the light source generator 22, and the material analysis optical fiber 23 is configured to converge the test light generated by the light source generator 22 to illuminate the predetermined tissue and collect spectral information at the irradiated position, and then transmit it to the analyzer 21 for analysis.

[0044] When the endoscope system in this embodiment is actually used, the endoscope tube 11 of the endoscope main unit 10 is inserted into the body of a person or an animal, etc. At this time, the optical imaging module 12 arranged in the endoscope tube 11 can illuminate the predetermined tissue and image the illuminated area, so that the medical staff can observe the location of the disease. At the same time, since the endoscope system in this embodiment is also provided with a material analysis mechanism 20, the material analysis mechanism 20 has a material analysis optical fiber 23 arranged in the endoscope tube 11, the material analysis optical fiber 23 can converge the test light generated by the light source generator 22 to the predetermined tissue and collect spectral information of the irradiated position, and then transmit it to the analyzer 21 for analysis, so that the disease can be analyzed at the scene of the doctor's examination and operation.

[0045] Compared with the endoscope in the prior art, the endoscope system in this embodiment integrates a material analysis mechanism 20. The setting of the material analysis mechanism 20 can analyze the components of the disease while performing endoscopic examination, thereby greatly shortening the disease examination and the patient's treatment cycle, and can bring great convenience to medical diagnosis.

[0046] Combination Figure 1 As shown, the endoscope host 10 and the endoscope tube 11 in this embodiment can be connected by connecting wires and the like. The endoscope host 10 provides the required image processing function for the endoscope system, and can store, process images, and display images on the screen for the imaging data collected by the optical imaging module 12 in the endoscope tube 11. In the actual design process, the endoscope host 10 can be provided with structures such as a display screen, a processing module, and a storage module. Among them, the processing module can be used to process the data and images fed back by the optical imaging module 12; the storage module is electrically connected to the processing module, and can store the processing structure of the data processing module; the display screen is electrically connected to the processing module, which is convenient for displaying the processing structure of the processing module. In addition, the endoscope host 10 in this embodiment can also be electrically connected to the analyzer. Such a configuration facilitates the use of the storage module and the display screen of the endoscope host 10 to store and display the data of the analyzer 21.

[0047] In clinical surgery, after the surgeon successfully finds the location of the disease in the human body through the endoscope tube 11, the surgeon can analyze the components of the disease according to the material analysis mechanism 20, and then provide a further diagnosis plan based on the analysis results. For example, in the holmium laser lithotripsy surgery of urology, the surgeon smoothly passes the endoscope tube 11 through the ureter and other tissues to reach the stone, and can analyze the components of the stone according to the material analysis mechanism 20, and then set different holmium laser lithotripsy parameters according to the different stone components, so as to provide a reference basis for subsequent treatment. In other words, the endoscope system in this embodiment can analyze the disease at the scene of clinical surgery, and then can guide the surgeon to perform the surgery at the scene of the surgery, which can greatly reduce the treatment time of the patient.

[0048] Furthermore, the endoscope tube 11 in this embodiment can be a hard tube or a soft tube. In other words, the endoscope system of the present application can accommodate different types of endoscope hosts 10 and can be widely used in endoscopic examinations and surgeries with different requirements.

[0049] See also Figure 5As shown, in some embodiments, the endoscope tube 11 includes an inner tube body 111 and an outer tube body 112, the outer tube body 112 is sleeved on the outside of the inner tube body 111, and a light-transmitting gap 113 is provided between the inner tube body 111 and the outer tube body 112, the light-transmitting gap 113 is provided around the outer circumference of the inner tube body 111, the inner tube body 111 and the outer tube body 112 are connected to form a junction position, and a mounting hole 114 is provided at the junction position; the optical imaging module 12 includes an optical lens group and a light guide beam, the optical lens group is provided inside the inner tube body 111, and the light guide beam is provided in the light-transmitting gap 113; the material analysis optical fiber 23 is fixedly installed in the mounting hole 114. In this embodiment, the endoscope tube 11 is configured as an inner tube body 111 and an outer tube body 112 connected to each other, the inner tube body 111 is provided with an optical lens group of the optical imaging module 12, and the outer periphery of the inner tube body 111 is provided with an annular light-transmitting gap 113, and the light-transmitting gap 113 is provided with a light-guiding light bundle of the optical imaging module 12. At this time, the optical lens group is located inside the annular light-guiding light bundle, etc., and can illuminate around the outer periphery of the optical lens group, which is more suitable for the optical lens group to capture the optical light for optical imaging. At the same time, by providing a mounting hole 114 at the intersection of the inner tube body 111 and the outer tube body 112 to install the material analysis optical fiber 23, it is more convenient to realize the miniaturization and lightweight design of the endoscope tube 11, so that the endoscope system in this embodiment can be suitable for minimally invasive surgery environment.

[0050] exist Figure 5 In the structure, the lighting system of the endoscope host 10 is composed of an illumination light source and a light guide bundle, wherein the illumination light source is located in the endoscope host 10, and the light guide bundle is located in the light-passing gap 113 of the endoscope tube 11. After the illumination light source generates illumination light, it is uniformly irradiated onto the tissue through the light guide bundle fixed in the light-passing gap 113. The optical lens group of the optical imaging module 12 is located in the inner tube body 111, and the optical lens group collects and transmits the image information of the illuminated tissue, and finally transmits the optical signal to the processing module in the endoscope host 10 for image processing, and passes through the storage module, and is simultaneously displayed and output through the display screen.

[0051] At the same time, in this embodiment, the material analysis optical fiber 23 is fixedly installed in the mounting hole 114, so that it can enter the body at the same time as the endoscope tube 11 to perform material composition analysis on the disease, that is, the test light generated by the light source generator 22 is focused and irradiated on the disease test area in front of the distal end of the endoscope tube 11, and the extremely weak spectral information within the larger divergence angle generated by the disease test area is collected, and the collected spectral information is transmitted to the analyzer 21 for analysis and data output.

[0052] In the structure of this embodiment, there is no mutual interference between the light guide beam, the optical lens group and the material analysis optical fiber 23. It is only necessary to open a smaller mounting hole 114 in a suitable area of ​​the endoscope tube 11 to fix the material analysis optical fiber 23.

[0053] Optionally, the endoscope tube 11 in this embodiment is a hard tube, and the light guide bundle can be composed of a plurality of optical fibers. Glass optical fiber is selected as the optical fiber material. For visible light to near infrared light (400nm-1400nm), the light transmission loss is small. Figure 7 As shown, it can be used as a light guide from visible light to near-infrared light. Figure 7 The horizontal axis is the length of the light wave, and the vertical axis is the loss rate of light after passing through the light guide beam.

[0054] In this embodiment, when the analyzer 21 is set as a Raman spectrometer, the spectral range of the material analysis optical fiber 23 for testing is 200nm-1400nm, such as a spectrum of 200nm, 400nm, 600nm, 780nm, 1200nm, 1400nm or a spectrum from 200nm to 1400nm. In actual use, the light guide bundle from visible light to near-infrared light can be used as the material analysis optical fiber 23 according to needs. Therefore, in this embodiment, the light guide bundle can be used as a part of the lighting system and the material analysis mechanism 20 at the same time. In other words, Figure 5 The endoscope tube 11 may not be provided with an additional mounting hole 114, and the material analysis optical fiber 23 may be provided in the light-through gap 113, which can improve the integration degree of the endoscope system in this embodiment. In this embodiment, the end face of each optical fiber or a part of the optical fibers in the light-guide light bundle is processed by the optical fiber end face grinding technology to enable it to have the material analysis optical fiber capability. At this time, the light guide in the light-through gap 113 has two functions: as an illumination element, the illumination light generated by the illumination light source in the endoscope host 10 is uniformly irradiated onto the tissue; as a material analysis element, the light outlet 243 of the filter 24 is connected to converge the test light generated by the light source generator 22 onto the symptom, and the spectral information of the symptom material analysis is transmitted to the analyzer 21. In this structure, the arrangement of the material analysis optical fiber 23 can expand the symptom test area range, while increasing the ability to collect spectral information, and can well detect the symptom.

[0055] See also Figure 6As shown, in other embodiments of the present application, an instrument through hole 115 is provided on the endoscope tube 11, and the material analysis optical fiber 23 is detachably provided in the instrument through hole 115. That is to say, for the endoscope host 10 equipped with the instrument through hole 115, when the material analysis mechanism 20 is actually used, the material analysis optical fiber 23 can be installed as needed. When surgery is required, the surgical instrument can pass through the instrument through hole 115, and when material analysis detection is required, the material analysis optical fiber 23 can be detected through the instrument through hole 115, without the need to additionally set up an independent material analysis optical fiber 23, and the structure is simple and easy to use.

[0056] like Figure 6 As shown, the endoscope tube 11 in this embodiment is also provided with an optical lens hole 118, a lighting element hole 116 and an air hole / water hole 117. Among them, an optical lens group is provided in the optical lens hole 118, a lighting element is provided in the lighting element hole 116, and the air hole / water hole 117 is used to pass physiological saline, etc. Optionally, the lighting element hole 116 and the air hole / water hole 117 in this embodiment can be set as one, or can be set as two or more. The instrument through hole 115 in this embodiment can help the surgeon to extend the auxiliary instrument into the body during surgery, the air hole / water hole 117 is used to ensure clear imaging, the lighting element illuminates the tissue, and the optical lens group is used for tissue imaging. The surgeon extends the endoscope tube 11 into the human body and approaches the diseased tissue area through the lighting element hole 116 and the optical lens group, and then extends some auxiliary instruments into the body through the instrument through hole 115 of the endoscope tube 11 to assist the surgeon in the next step of surgery. The material analysis optical fiber 23 serves as an auxiliary instrument and can be directly extended from the instrument through hole 115 into the diseased tissue area.

[0057] In addition, in some surgeries that require the use of auxiliary optical fibers, these auxiliary optical fibers can be combined with the material analysis optical fibers 23 to increase the function of pre-operative material analysis.

[0058] For example, in urology holmium laser lithotripsy, after the surgeon finds the location of the stone through an endoscope, the surgeon places the holmium laser fiber close to the stone through the instrument through hole 115, and finally uses the holmium laser to break the stone. At present, commercial holmium laser fibers are suitable for visible light to near-infrared light (500nm-2500nm), so the holmium laser fiber can be polished through the fiber end surface to enable the holmium laser fiber to have the function of material analysis. After the holmium laser fiber is close to the stone, the holmium laser fiber is connected to the material analysis mechanism 20, and the stone composition is first analyzed. After the stone composition analysis data is obtained, the holmium laser fiber is connected to the holmium laser, and the holmium laser parameters are adjusted according to the stone composition to perform better holmium laser lithotripsy.

[0059] Recombination Figures 1 to 6As shown, the material analysis mechanism 20 in this embodiment further includes a filter 24, which includes a reflection port 241, a light inlet 242 and a light outlet 243, the light inlet 242 is connected to the light source generator 22, the reflection port 241 is connected to the analyzer 21, and the light outlet 243 is connected to the material analysis optical fiber 23. Optionally, the analyzer 21 includes a spectrometer, which can be a Fourier transform infrared spectrometer and a Raman spectrometer, etc.; the light source generator 22 includes a laser, which emits a detection laser, and the structure is convenient for implementation.

[0060] The filter 24 in this embodiment mainly includes the following three functions: transmitting the test light generated by the light source generator 22 to the material analysis optical fiber 23 for testing; performing spectral filtering on the spectral signal collected by the material analysis optical fiber 23, greatly attenuating the proportion of the test light in the spectral signal; transmitting the filtered signal light to the analyzer for spectral analysis. The specific process is as follows: after the light source generator 22 generates the test light, it will enter the filter 24 from the light inlet 242 of the filter 24, and will be emitted from the light outlet 243 of the filter 24 and enter the material analysis optical fiber 23. After the material analysis optical fiber 23 collects and transmits back the spectral information, it will enter the filter 24 from the light outlet 243 of the filter 24 in the reverse direction. The filtered signal light will be emitted from the reflection port 241 of the filter 24 and enter the analyzer 21 for spectral analysis.

[0061] See also Figure 2 As shown, the material analysis optical fiber 23 in this embodiment includes a detection end far away from the light source generator 22, and the end face design of the detection end can achieve confocalization, that is, after the test light passes through the material analysis optical fiber 23, the light beam 40 converges to the convergence point 50, and the light emitted from a local area outside the end of the material analysis optical fiber 23 is concentratedly collected. Through the fiber end face grinding technology, the end face of the material analysis optical fiber 23 can be ground into any desired simple free-form surface to achieve the convergence function of the light beam 40, and through the coating technology of the fiber end face, the light loss at the fiber end face is reduced.

[0062] Optionally, the material analysis optical fiber 23 in this embodiment includes a detection end away from the light source generator 22, and the end surface of the detection end includes at least one of a plane, a spherical surface, a parabola, a wedge surface, and a cone surface. Figure 3 As shown, Figure 3 (a) shows the case where the end face of the detection end of the material analysis optical fiber 23 is a flat surface. Figure 3 (b) shows the case where the end face of the detection end of the material analysis optical fiber 23 is a spherical surface. Figure 3 (c) shows the case where the detection end of the material analysis optical fiber 23 is a parabola. Figure 3 (d) shows the situation when the end face of the material analysis optical fiber 23 is a conical surface. Figure 3(e) shows the case where the end face of the detection end of the material analysis optical fiber 23 is a combination of a parabola and a plane. Figure 3 (f) shows the case where the end face of the material analysis optical fiber 23 is a combination of an inclined surface and a flat surface.

[0063] During actual processing, through the fiber end face grinding technology, the end face of the detection end of the material analysis optical fiber 23 can be ground into any desired simple free-form surface shape to realize the light beam convergence function, and through the fiber end face coating technology, the light loss at the fiber end face is reduced. According to actual needs, such as processing difficulty, fiber diameter, distance from the convergence point to the end face, convergence angle requirements, etc., the free-form surface shape is simulated, and finally the surface shape parameters that need to be processed are output. In this embodiment, the material analysis optical fiber 23 can realize a spherical end face, a parabolic end face, a wedge end face, a parabolic plane end face, a wedge plane end face, etc. Figure 3 shown.

[0064] See also Figure 4 As shown, in another embodiment of the present application, the material analysis optical fiber 23 includes a detection end away from the light source generator 22, and the detection end includes a convex arc segment 233 and at least one frustum segment. The frustum segment and the convex arc segment 233 are sequentially connected in a direction away from the light source generator 22, and the cross-sectional area of ​​the frustum segment is successively reduced along the transmission direction of the light beam. It can be understood that the cross-sectional area of ​​the frustum segment described in this embodiment refers to the cross-sectional area obtained by cutting the detection end along the direction perpendicular to the axis of the material analysis optical fiber 23. In this embodiment, by setting the detection end of the material analysis optical fiber 23 as a convex arc segment 233 and at least one frustum segment, the laser emitted by the laser can be converged to a certain local area after being refracted by the frustum segment and the convex arc segment 233, or the material analysis optical fiber 23 can collect light information emitted from a predetermined area, so as to facilitate rapid analysis of the material at the location of the disease.

[0065] Furthermore, the frustum segment in this embodiment includes a first frustum segment 231 and a second frustum segment 232. The first frustum segment 231, the second frustum segment 232 and the convex arc segment 233 are sequentially connected in a direction away from the light source generator 22; wherein the angle between the conical surface of the first frustum segment 231 and the axis of the material analysis optical fiber 23 is θ1, the angle between the conical surface of the second frustum segment 232 and the axis of the material analysis optical fiber 23 is θ2, and θ1<θ 2。 The length of the conical surface of the first frustum section 231 is d1, the length of the conical surface of the second frustum section 232 is d2, and d1>d2.

[0066] That is to say, the detection end in this embodiment is composed of the first frustum segment 231, the second frustum segment 232 and the convex arc segment 233, and the light can be effectively converged by making θ1<θ2, d1>d2. In the actual design process, θ1, θ2, d1, d2 and the radius of the convex arc segment 233 can be reasonably set as needed, and then the convergence angle of the light beam and the position of the convergence point can be designed.

[0067] The design of the end face of the detection end of the material analysis optical fiber 23 in this embodiment has two main advantages: the test light is concentrated to a greater extent and irradiated on a certain tiny test area, thereby increasing the light intensity in the test area, increasing the probability of interaction between light and matter in the test area, and increasing the probability of generating material analysis signals in the test area; the material analysis signal based on spectral analysis is extremely weak. Through the design of the end face of the material analysis optical fiber, the collection angle of the test area signal can be greatly improved, that is, the signal receiving capacity per unit area can be improved.

[0068] Optionally, the material analysis optical fiber 23 includes at least one light body. When there are multiple optical fiber bodies, the multiple light bodies are arranged side by side to form a cylindrical strip structure. In actual operation, the material analysis optical fiber 23 in this embodiment is at least used to detect light with a wavelength of 780nm to 1400nm.

[0069] Optionally, the wavelength of the light emitted by the light source generator 22 is 785 nm to 1064 nm; the detection wavelength of the analyzer 21 includes 797.52 nm to 1351.62 nm; and the bandpass wavelength of the filter 24 is 785±10 nm to 830±10 nm.

[0070] In some embodiments of the present application, the analyzer 21 uses a Raman spectrometer. In order to avoid the influence of biofluorescence during in vivo detection as much as possible, the analysis band of the Raman spectrometer is selected in the near-infrared region. The Raman spectrometer and the supporting light source generator 22 and filter 24 can be, for example:

[0071] 1. The light source of the spectrometer is a 785nm laser, the full width at half maximum of the laser is less than 0.021nm, the detection core of the Raman spectrometer is a Si-based CCD (image controller), the analysis band range of the Raman spectrometer includes at least 797.52nm to 931.19nm, and the resolution of the spectrometer is less than 1cm -1 , the bandpass wavelength range of filter 24 is selected to be 785±10nm.

[0072] 2. The light source of the spectrometer is 830nm laser, the full width at half maximum of the laser is less than 0.023nm, the detector of the Raman spectrometer is Si-based CCD, the analysis band range of the Raman spectrometer includes at least 844.01nm~995.20nm, and the resolution of the spectrometer is less than 1cm -1, the bandpass wavelength range of filter 24 is selected to be 830±10nm.

[0073] 3. The light source of the spectrometer is a 1064nm laser, the full width at half maximum of the laser is less than 0.039nm, the detector of the Raman spectrometer is InGaAs CCD, the analysis band of the Raman spectrometer includes at least 1087.13nm to 1351.62nm, and the resolution of the spectrometer is less than 1cm -1 , the bandpass wavelength range of filter 24 is selected to be 1064±15nm.

[0074] According to the above description, the endoscopy system of the present application has at least the following technical effects:

[0075] (1) The endoscope system of the present application can analyze the components of the disease while performing endoscopic examination, thereby greatly shortening the disease examination and patient treatment cycle, and can bring great convenience to medical diagnosis.

[0076] (2) The endoscope system of the present application is compatible with multiple endoscope systems and can be applied to various practical needs.

[0077] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0078] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0079] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An endoscope system, characterized in that: include: An endoscope mainframe (10), the endoscope mainframe (10) being connected to an endoscope tube (11) and an optical imaging module (12), the optical imaging module (12) being at least partially disposed in the endoscope tube (11), the optical imaging module (12) being configured to illuminate a predetermined tissue and to image an illuminated area; A material analysis mechanism (20), the material analysis mechanism (20) comprising an analyzer (21), a light source generator (22) and a material analysis optical fiber (23), the material analysis optical fiber (23) being arranged in the endoscope tube (11) and connected to the analyzer (21) and the light source generator (22), the material analysis optical fiber (23) being configured to converge the test light generated by the light source generator (22) onto the predetermined tissue and collect spectral information at the irradiated position, and then transmit the information to the analyzer (21) for analysis.

2. The endoscope system according to claim 1, characterized in that: The material analysis mechanism (20) further comprises a filter (24), wherein the filter (24) comprises a reflection port (241), a light inlet port (242) and a light outlet port (243), wherein the light inlet port (242) is connected to the light source generator (22), the reflection port (241) is connected to the analyzer (21), and the light outlet port (243) is connected to the material analysis optical fiber (23).

3. The endoscope system according to claim 2, characterized in that: The analyzer (21) includes a spectrometer, and / or the light source generator (22) includes a laser.

4. The endoscope system according to claim 1, characterized in that: The material analysis optical fiber (23) comprises a detection end away from the light source generator (22), and the end surface of the detection end comprises at least one of a plane, a spherical surface, a parabola, a wedge surface, and a cone surface.

5. The endoscope system according to claim 1, characterized in that: The material analysis optical fiber (23) comprises a detection end away from the light source generator (22), the detection end comprising a convex arc segment (233) and at least one frustum segment, the frustum segment and the convex arc segment (233) are connected in sequence along a direction away from the light source generator (22), and the cross-section of the frustum segment gradually decreases along the direction away from the light source generator (22).

6. The endoscope system according to claim 5, characterized in that: The frustum segment comprises a first frustum segment (231) and a second frustum segment (232), wherein the first frustum segment (231), the second frustum segment (232) and the convex arc segment (233) are sequentially connected in a direction away from the light source generator (22); The angle between the conical surface of the first frustum segment (231) and the axis of the material analysis optical fiber (23) is θ1, the angle between the conical surface of the second frustum segment (232) and the axis of the material analysis optical fiber (23) is θ2, and θ1<θ2.

7. The endoscope system according to claim 6, characterized in that: The length of the conical surface of the first frustum section (231) is d1, the length of the conical surface of the second frustum section (232) is d2, and d1>d2.

8. The endoscope system according to any one of claims 1 to 7, characterized in that: The endoscope tube (11) comprises a hard pipe or a soft pipe.

9. The endoscope system according to any one of claims 1 to 7, characterized in that: The endoscope tube (11) comprises an inner tube body (111) and an outer tube body (112), wherein the outer tube body (112) is sleeved on the outside of the inner tube body (111), and a light-transmitting gap (113) is provided between the inner tube body (111) and the outer tube body (112), and the light-transmitting gap (113) is provided around the outer circumference of the inner tube body (111); The optical imaging module (12) comprises an optical lens group and a light guide bundle, the optical lens group is arranged inside the inner tube body (111), and the light guide bundle is arranged in the light-transmitting gap (113); The material analysis optical fiber (23) is fixedly installed in the light passing gap (113).

10. The endoscope system according to any one of claims 1 to 7, characterized in that: The endoscope tube (11) comprises an inner tube body (111) and an outer tube body (112); the outer tube body (112) is sleeved on the outside of the inner tube body (111); a light-transmitting gap (113) is provided between the inner tube body (111) and the outer tube body (112); the light-transmitting gap (113) is provided around the outer circumference of the inner tube body (111); the inner tube body (111) and the outer tube body (112) are connected to form a junction; a mounting hole (114) is provided at the junction; The optical imaging module (12) comprises an optical lens group and a light guide bundle, the optical lens group is arranged inside the inner tube body (111), and the light guide bundle is arranged in the light-transmitting gap (113); The material analysis optical fiber (23) is fixedly mounted in the mounting hole (114).

11. The endoscope system according to any one of claims 1 to 7, characterized in that: The endoscope tube (11) is provided with an instrument through hole (115), and the substance analysis optical fiber (23) is detachably arranged in the instrument through hole (115).

12. The endoscope system according to any one of claims 1 to 7, characterized in that: The substance analysis optical fiber (23) comprises at least one optical fiber body. When there are multiple optical fiber bodies, the multiple optical fiber bodies are arranged side by side to form a cylindrical strip structure; and / or, The substance analysis optical fiber (23) is used at least to detect light with a wavelength of 200 nm to 1400 nm.

13. The endoscope system according to claim 2, characterized in that: The wavelength of the light emitted by the light source generator (22) is within a range of 785 nm to 1064 nm; and / or, The detection wavelength of the analyzer (21) includes 797.52 nm to 1351.62 nm; and / or, The passband wavelength of the filter (24) is 785±10 nm to 830±10 nm.

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