Angle-adjustable intelligent wide-angle optical system and microendoscope

Abstract

The invention discloses an angle-adjustable intelligent wide-angle optical system and a microendoscope. The angle-adjustable intelligent wide-angle optical system comprises an endoscope handle and probe equipment arranged at the end of the endoscope handle. The probe equipment is provided with the two-dimensional scanner used for changing the light emitting direction of the illumination beam, and the swing speed of the two-dimensional scanner is controlled to reach a certain threshold value, so that the illumination range of the illumination beam on the target living tissue can be expanded visually, and therefore, the acquisition optical fiber can acquire larger feedback image information; the effect of enlarging the visual angle of the endoscope is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and in particular to an angle-adjustable intelligent wide-angle optical system and a microendoscope. Background Art

[0002] As a medical device that integrates optics, precision machinery and modern electronic technology, the working principle of endoscope mainly relies on the optical lens to capture the image inside the body and transmit it to the external display through the image sensor, so that the doctor can directly observe the situation inside the patient's body. Endoscopes are widely used in the medical field. For example, in the diagnosis and treatment of diseases of the digestive tract, respiratory tract, urinary system, etc., doctors can intuitively and accurately understand the location of the lesion through endoscopes, providing an important basis for treatment.

[0003] With the continuous development of medical technology, the performance requirements for endoscopes are getting higher and higher. Among them, expanding the viewing angle of the endoscope probe is of great significance for improving diagnostic accuracy and reducing the missed diagnosis rate. Therefore, developing an endoscope probe that can expand the viewing angle, has stable performance, and is easy to operate is of great significance for improving the level of medical diagnosis. Summary of the invention

[0004] The purpose of the present application is to provide an angle-adjustable intelligent wide-angle optical system and a microendoscope, which can improve the above-mentioned problems.

[0005] The embodiment of the present application is implemented as follows: In a first aspect, the present application provides an angle-adjustable intelligent wide-angle optical system, which includes a light source transmission optical fiber, a dichroic mirror, an illumination optical fiber, a collection optical fiber, a handle photoelectric conversion module, and a probe device arranged at the end of the endoscope handle; The light source transmission optical fiber is connected to a light source driving board that supplies a laser light source, and is used to transmit the laser light beam to the surface of the dichroic mirror for reflection; the head end of the illumination optical fiber is arranged toward the dichroic mirror, and the reflected light beam reflected by the dichroic mirror is coupled into the illumination optical fiber for transmission, and the end of the illumination optical fiber extends to the probe device; The probe device includes an opening and a two-dimensional scanner disposed toward the opening; the end of the illumination optical fiber emits an illumination beam toward the two-dimensional scanner, and the two-dimensional scanner swings under the drive of a control signal to reflect the illumination beam toward different angles, and the illumination beam irradiates the target living tissue through the opening; The head end of the collection optical fiber is arranged at the opening. The target living tissue generates fluorescence after being excited by the laser. The fluorescence is collected by the collection optical fiber and then transmitted. It is emitted toward the end of the dichroic mirror through the collection optical fiber, passes through the dichroic mirror, and is received by the handle photoelectric conversion module. The handle photoelectric conversion module is used to convert the received optical signal into an electrical signal.

[0006] It can be understood that the present application discloses an angle-adjustable intelligent wide-angle optical system, including an endoscope handle and a probe device arranged at the end of the endoscope handle. The probe device is provided with a two-dimensional scanner for changing the light-emitting direction of the illumination beam, and the swing speed of the two-dimensional scanner is controlled to reach a certain threshold, so that the illumination range of the illumination beam on the target living tissue can be visually expanded, so that the collection optical fiber collects more feedback image information, which plays a role in expanding the viewing angle of the endoscope.

[0007] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: The illumination optical fiber and the collection optical fiber are arranged in parallel with the single crystal substrate; The end of the illumination optical fiber is provided with an inclined surface coated with a reflective material, constituting a first reflective inclined surface; The head end of the collection optical fiber is provided with an inclined surface coated with a reflective material, constituting a second reflective inclined surface; The first reflective slope is used to reflect the illumination light beam transmitted in the illumination optical fiber toward the two-dimensional scanner; The second reflective slope is used to reflect the ambient light beam incident from the opening toward the inside of the collection optical fiber.

[0008] It can be understood that in order to facilitate the placement of the illumination fiber and the collection fiber, and also to reduce the overall volume of the angle-adjustable intelligent wide-angle optical system, the illumination fiber and the collection fiber can be arranged parallel to the single crystal substrate. The above-mentioned first reflection bevel and second reflection bevel are arranged to change the original light emitting or light entering direction of the optical fiber, so that the illumination fiber and the collection fiber can achieve the purpose of illumination and light collection.

[0009] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: A circular arc groove is provided on the side wall of the end of the illumination optical fiber, and the concave surface of the circular arc groove is used to diffuse the reflected light reflected by the first reflecting inclined surface; A circular arc groove is also provided on the side wall of the head end of the collection optical fiber, and the concave surface of the circular arc groove is used to converge the ambient light beam incident from the opening.

[0010] In an optional embodiment of the present application, the two-dimensional scanner includes a first magnet and a second magnet fixed on the housing of the probe device, a single crystal substrate fixed between the first magnet and the second magnet, and a reflective support plate; a receiving window is opened in the center of the single crystal substrate, the reflective support plate is arranged in the receiving window, and is attached to the single crystal substrate by a first flexible member and a second flexible member arranged along a rotating axis; a reflector is fixed in the center of the reflective support plate, and an electromagnetic coil is arranged around the reflector.

[0011] It can be understood that the first magnet and the second magnet emit permanent magnetic fields with the same orientation, and these permanent magnetic fields form a magnetic field across at least a portion of the single crystal substrate, which is configured to interact with the shifted magnetic field emitted by the electromagnetic coil located on the single crystal substrate. The interaction between the magnetic field and the shifted magnetic field causes the reflective support plate to swing around the rotation axis, and the reflective support plate is attached to the single crystal substrate through the first flexible member and the second flexible member. In this way, the central fixed reflector of the reflective support plate can also swing around the rotation axis. When the swing speed reaches a certain threshold, the illumination range of the illumination beam on the target living tissue can be visually expanded through the principle of residual vision.

[0012] In an optional embodiment of the present application, the probe device is provided with a first opening and a second opening relative to each other, and the first opening and the second opening are respectively arranged on opposite sides of the two-dimensional scanner; both the front and back sides of the reflection support plate are provided with reflection mirrors, wherein the front reflection mirror is arranged toward the first opening, and the back reflection mirror is arranged toward the second opening.

[0013] It can be understood that two opposite openings can also be set in the probe device disclosed in the present application, and corresponding reflectors are set on both the front and back sides of the reflective support plate. When the two-dimensional scanner is working, the front reflector and the back reflector swing around the rotation axis to reflect the illumination light beam to the first opening and the second opening respectively, and the ambient light beam incident from the two openings can be collected at the same time to form a collection image of the target living tissue. The endoscope viewing angle can be further expanded by image stitching.

[0014] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: The illumination optical fiber comprises a single head end and two ends, wherein the first illumination end emits a light beam toward the front reflector, and the second illumination end emits a light beam toward the back reflector; The angle-adjustable intelligent wide-angle optical system includes two illumination optical fibers, the head ends of the two illumination optical fibers are both arranged toward the dichroic mirror, wherein the end of the first illumination optical fiber emits a light beam toward the front reflector, and the end of the second illumination optical fiber emits a light beam toward the back reflector.

[0015] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: The collection optical fiber comprises two head ends and a single end, wherein the first collection head end collects the ambient light beam toward the first opening, and the second collection head end collects the ambient light beam toward the second opening; The angle-adjustable intelligent wide-angle optical system includes two collection optical fibers, and the ends of the two illumination optical fibers are both arranged toward the dichroic mirror, wherein the head end of the first collection optical fiber faces the first opening to collect the ambient light beam, and the head end of the second collection optical fiber faces the second opening to collect the ambient light beam.

[0016] In the second aspect, the present application also provides an angle-adjustable intelligent wide-angle optical system. On the basis of any angle-adjustable intelligent wide-angle optical system disclosed in the first aspect, a sensor adapter board is added, which is electrically connected to the handle photoelectric conversion module through a cable. The sensor adapter board is used to sample and process the electrical signal transmitted by the handle photoelectric conversion module and convert the parallel-to-serial signal format, and convert the serialized electrical signal into an optical signal again.

[0017] It can be understood that after the handle photoelectric conversion module receives the optical signal collected by the collection optical fiber, it converts the optical signal into an electrical signal; in order to prevent electromagnetic interference, the sensor adapter board will sample and process the transmitted electrical signal and convert the parallel-to-serial signal format, and convert the serialized electrical signal into an optical signal again, so that it can be transmitted to the camera module of the endoscope host through the transmission optical fiber for further photoelectric conversion, and finally the enlarged microscopic image is output on the display.

[0018] In a third aspect, the present application discloses a microendoscope, comprising the angle-adjustable intelligent wide-angle optical system, a camera module, and a light source module as described in the second aspect; The camera module includes a mainboard processor and a display electrically connected to the mainboard processor, and the mainboard processor is also connected to the sensor adapter board through a transmission optical fiber; The light source module includes a light source driving board and a scanning driving board electrically connected to the mainboard processor; the light source driving board is connected to the light source transmission optical fiber, and is used to transmit a laser beam to the angle-adjustable intelligent wide-angle optical system through the light source transmission optical fiber under the control of the mainboard processor; the scanning driving board is electrically connected to the two-dimensional scanner, and is used to drive the two-dimensional scanner to perform scanning swing under the control of the mainboard processor.

[0019] It can be understood that the present application discloses a microendoscope including the above-mentioned angle-adjustable intelligent wide-angle optical system, a camera module and a light source module. The mainboard processor in the camera module is electrically connected to the light source module, and is used to control the light source driver board and the scanning driver board in the light source module, respectively driving the laser light source in the angle-adjustable intelligent wide-angle optical system to turn on / off and the swing of the two-dimensional scanner. In addition, the main processor is also connected to the sensor adapter board through a transmission optical fiber, and is used to convert the optical signal fed back by the sensor adapter board into an electrical signal again, and then through a series of image ISP algorithm processing, the original image is processed into a target image and the image is reconstructed and output to the display for display in a specified format.

[0020] In an optional embodiment of the present application, the mainboard processor is used to perform the following steps: Controlling the light source driving board to generate a laser beam to supply the angle-adjustable intelligent wide-angle optical system; Controlling the scanning driving board to drive the two-dimensional scanner to perform scanning swing, so as to expand the irradiation range of the illumination light beam; The optical signal fed back by the sensor adapter board is received, and the optical signal is converted into an electrical signal, and then the display is controlled to display a corresponding picture based on the electrical signal. Beneficial Effects

[0021] The present application discloses an angle-adjustable intelligent wide-angle optical system, comprising an endoscope handle and a probe device arranged at the end of the endoscope handle. The probe device is provided with a two-dimensional scanner for changing the light-emitting direction of an illumination beam. By controlling the swing speed of the two-dimensional scanner to reach a certain threshold, the illumination range of the illumination beam on the target living tissue can be visually expanded, so that the collection optical fiber can collect greater feedback image information, thereby expanding the viewing angle of the endoscope.

[0022] The probe device disclosed in the present application can also be provided with two opposite openings, and corresponding reflectors are provided on both the front and back sides of the reflective support plate. When the two-dimensional scanner is working, the front reflector and the back reflector both swing around the rotation axis, respectively reflecting the illumination beam to the first opening and the second opening, and can simultaneously collect the ambient light beam incident from the two openings to form a collection image of the target living tissue. The endoscope viewing angle can be further expanded by image stitching.

[0023] The present application discloses a microendoscope including the above-mentioned intelligent wide-angle optical system with adjustable angle, a camera module and a light source module. The mainboard processor in the camera module is electrically connected to the light source module, and is used to control the light source driving board and the scanning driving board in the light source module, and respectively drive the laser light source in the intelligent wide-angle optical system with adjustable angle to turn on / off and the swing of the two-dimensional scanner. In addition, the main processor is also connected to the sensor adapter board through a transmission optical fiber, and is used to convert the optical signal fed back by the sensor adapter board into an electrical signal again, and then process the original image into a target image through a series of image ISP algorithm processing and reconstruct the image to output it to the display for display in a specified format.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, optional embodiments are specifically listed below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the appearance of an angle-adjustable intelligent wide-angle optical system provided by the present application; Figure 2 It is a schematic diagram of the internal structure of an angle-adjustable intelligent wide-angle optical system provided by the present application; Figure 3 yes Figure 2 The schematic diagram of the structure of the illumination optical fiber in the angle-adjustable intelligent wide-angle optical system shown; Figure 4 yes Figure 3 The structural schematic diagram of the two-dimensional scanner in the angle-adjustable intelligent wide-angle optical system shown in FIG. Figures 5 to 7 yes Figure 4 A schematic diagram of the working state of the two-dimensional scanner shown; Figure 8 It is a structural schematic diagram of a probe device provided by the present application; Fig. 9 is a structural schematic diagram of another probe device provided by the present application; Fig.10 It is a structural schematic diagram of a microendoscope provided in this application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] First, as Figure 1 and Figure 2 As shown, the present application provides an angle-adjustable intelligent wide-angle optical system, which includes a light source transmission optical fiber 11, a dichroic mirror 12, an illumination optical fiber 13, a collection optical fiber 14, and a handle photoelectric conversion module ( Figure 1 and Figure 2 ), and a probe device 20 disposed at the end of the endoscope handle.

[0029] The light source transmission optical fiber 11 is connected to the light source driving board that supplies the laser light source, and is used to transmit the laser beam to the surface of the dichroic mirror 12 for reflection; the head end of the illumination optical fiber 13 is arranged toward the dichroic mirror 12, and the reflected light beam reflected by the dichroic mirror 12 is coupled to the illumination optical fiber 13 for transmission, and the end of the illumination optical fiber 13 extends to the probe device 20. The dichroic mirror is a special optical element that selectively reflects or transmits light according to the wavelength (or frequency) of the light. Within a given angle and wavelength range, the dichroic mirror exhibits high reflection for light of a certain wavelength and high transmission for light of another wavelength.

[0030] The probe device 20 includes an opening 21 and a two-dimensional scanner 22 disposed toward the opening 21; the end of the illumination optical fiber 13 emits an illumination beam toward the two-dimensional scanner 22, and the two-dimensional scanner 22 swings under the drive of the control signal to reflect the illumination beam toward different angles, and the illumination beam irradiates the target living tissue through the opening 21. It can be understood that the housing of the probe device 20 can be designed as a whole with the end of the endoscope handle, that is, the probe device 20 is designed as the end of the endoscope handle.

[0031] The head end of the collection optical fiber 14 is set at the opening 21. The target living tissue generates fluorescence after being excited by the laser. The fluorescence is collected by the collection optical fiber 14 and then transmitted. It is emitted toward the end of the dichroic mirror 12 through the collection optical fiber 14, and passes through the dichroic mirror 12. It is received by the handle photoelectric conversion module, and the handle photoelectric conversion module is used to convert the received optical signal into an electrical signal. After the living tissue is excited by the laser, it will generate fluorescence. This fluorescence usually has a different wavelength from the excitation light, that is, a band excitation change occurs. It is this band change that allows the reflected light (fluorescence) to pass through the dichroic mirror that originally reflects the laser.

[0032] It can be understood that the present application discloses an angle-adjustable intelligent wide-angle optical system, including an endoscope handle and a probe device 20 disposed at the end of the endoscope handle. The probe device 20 is provided with a two-dimensional scanner 22 for changing the light-emitting direction of the illumination beam. By controlling the swing speed of the two-dimensional scanner 22 to reach a certain threshold, the illumination range of the illumination beam on the target living tissue can be visually expanded, so that the collection optical fiber 14 can collect greater feedback image information, thereby expanding the viewing angle of the endoscope.

[0033] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: The illumination optical fiber 13 and the collection optical fiber 14 are arranged parallel to the single crystal substrate 23; The end of the illumination optical fiber 13 is provided with an inclined surface coated with a reflective material, constituting a first reflective inclined surface; The head end of the collection optical fiber 14 is provided with an inclined surface coated with a reflective material, constituting a second reflective inclined surface; The first reflective slope is used to reflect the illumination light beam transmitted in the illumination optical fiber 13 toward the two-dimensional scanner 22; The second reflective slope is used to reflect the ambient light beam incident from the opening 21 toward the inside of the collection optical fiber 14 .

[0034] It can be understood that in order to facilitate the placement of the illumination optical fiber 13 and the collection optical fiber 14 and to reduce the overall volume of the angle-adjustable intelligent wide-angle optical system, the illumination optical fiber 13 and the collection optical fiber 14 can be arranged parallel to the single crystal substrate 23. The above-mentioned first reflection bevel and second reflection bevel are arranged to change the original light emitting or light entering direction of the optical fiber, so that the illumination optical fiber 13 and the collection optical fiber 14 can achieve the purpose of illumination and light collection.

[0035] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: An arc-shaped groove is provided on the side wall of the end of the illumination optical fiber 13, and the concave surface of the arc-shaped groove is used to diffuse the reflected light reflected by the first reflecting inclined surface; An arc-shaped groove is also provided on the side wall of the head end of the collection optical fiber 14 , and the concave surface of the arc-shaped groove is used to converge the ambient light beam incident from the opening 21 .

[0036] like Figure 3As shown, taking the illumination optical fiber 13 as an example, the end of the illumination optical fiber 13 is provided with a first reflective slope coated with a reflective material, which is used to reflect the illumination light beam transmitted in the illumination optical fiber 13 toward the two-dimensional scanner 22, and a groove 130 is provided on the side wall. The groove 130 is in an arc shape and is used to diffuse the reflected light reflected by the first reflective slope, which is conducive to the illumination light beam reflected by the two-dimensional scanner to irradiate a larger range. The groove design of the collection optical fiber 14 is similar to the groove design of the illumination optical fiber 13, and will not be repeated here.

[0037] In an optional embodiment of the present application, if Figure 4 As shown, the two-dimensional scanner 22 includes a first magnet 210 and a second magnet 220 fixed on the outer shell of the probe device 20, a single crystal substrate 23 fixed between the first magnet 210 and the second magnet 220, and a reflection support plate 24; a receiving window is opened in the center of the single crystal substrate 23, and the reflection support plate 24 is arranged in the receiving window and is attached to the single crystal substrate 23 by a first flexible member 251 and a second flexible member 252 arranged along the rotation axis; a reflection mirror 26 is fixed in the center of the reflection support plate 24, and an electromagnetic coil 27 is arranged around the reflection mirror 26.

[0038] It can be understood that the first magnet 210 and the second magnet 220 emit permanent magnetic fields with the same orientation, which form a magnetic field across at least a portion of the single crystal substrate 23, and the magnetic field is configured to interact with the displacement magnetic field emitted by the electromagnetic coil 27 located on the single crystal substrate 23. The interaction between the magnetic field and the displacement magnetic field causes the reflection support plate 24 to swing around the rotation axis AA', and the reflection support plate 24 is attached to the single crystal substrate 23 by the first flexure 251 and the second flexure 252. In this way, the central fixed reflector 26 of the reflection support plate 24 can also swing around the rotation axis AA', as shown in FIG. Figures 5 to 7 When the swing speed reaches a certain threshold, the illumination range of the illumination beam on the target living tissue can be visually expanded through the principle of residual vision.

[0039] In an optional embodiment of the present application, if Figure 8 As shown, the probe device 20 is provided with a relative first opening 211 and a second opening 212, and the first opening 211 and the second opening 212 are respectively arranged on opposite sides of the two-dimensional scanner 22; both the front and back sides of the reflection support plate 24 are provided with reflection mirrors, wherein the front reflection mirror is arranged toward the first opening 211, and the back reflection mirror is arranged toward the second opening 212.

[0040] It can be understood that two opposite openings 21 can also be set in the probe device 20 disclosed in the present application, and corresponding reflectors are set on both the front and back sides of the reflective support plate 24. When the two-dimensional scanner 22 is working, the front reflector and the back reflector swing around the rotation axis AA' to reflect the illumination light beam to the first opening 211 and the second opening 212 respectively, and the ambient light beam incident from the two openings 21 can be collected at the same time to form a collection image of the target living tissue. The endoscope viewing angle can be further expanded by image stitching.

[0041] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: The illumination optical fiber 13 includes a single head end and two ends. Figure 8 As shown, the first lighting end 131 emits a light beam toward the front reflector, and the second lighting end 132 emits a light beam toward the rear reflector; The angle-adjustable intelligent wide-angle optical system includes two illumination optical fibers, the head ends of which are both arranged toward the dichroic mirror, such as Fig. 9 As shown, the end of the first illumination optical fiber 133 emits a light beam toward the front reflector, and the end of the second illumination optical fiber 134 emits a light beam toward the rear reflector.

[0042] In an optional embodiment of the present application, the above-mentioned angle-adjustable intelligent wide-angle optical system includes at least one of the following: The collection optical fiber 14 includes two head ends and a single end. Fig. 9 As shown, the first collecting head end 141 collects the ambient light beam toward the first opening 211 , and the second collecting head end 142 collects the ambient light beam toward the second opening 212 ; The angle-adjustable intelligent wide-angle optical system includes two collection optical fibers 14, and the ends of two illumination optical fibers 13 are both arranged toward the dichroic mirror 12. Figure 8 As shown, the head end of the first collection optical fiber 143 faces the first opening 211 to collect the ambient light beam, and the head end of the second collection optical fiber 144 faces the second opening 212 to collect the ambient light beam.

[0043] In the second aspect, the present application also provides an angle-adjustable intelligent wide-angle optical system. On the basis of any angle-adjustable intelligent wide-angle optical system disclosed in the first aspect, a sensor adapter board is added, which is electrically connected to the handle photoelectric conversion module through a wiring harness. The sensor adapter board is used to sample and process the electrical signal transmitted from the handle photoelectric conversion module and convert the parallel-to-serial signal format, and convert the serialized electrical signal into an optical signal again.

[0044] It can be understood that after the handle photoelectric conversion module receives the optical signal collected by the collection optical fiber 14, it converts the optical signal into an electrical signal; in order to prevent electromagnetic interference, the sensor adapter board will sample and process the transmitted electrical signal and convert the parallel-to-serial signal format, and convert the serialized electrical signal into an optical signal again, so as to facilitate transmission to the camera module 200 of the endoscope host through the transmission optical fiber 40 for further photoelectric conversion, and finally output the enlarged microscopic image on the display 202.

[0045] Thirdly, Fig.10 As shown, the present application discloses a microendoscope, comprising the angle-adjustable intelligent wide-angle optical system 100 of the second aspect, a camera module 200 and a light source module 300; The camera module 200 includes a mainboard processor 201 and a display 202 electrically connected to the mainboard processor 201. The mainboard processor 201 is also connected to the sensor adapter board via a transmission optical fiber 40. The light source module 300 includes a light source driving board 301 and a scanning driving board 302 electrically connected to the mainboard processor 201; the light source driving board 301 is connected to the light source transmission optical fiber 11, and is used to transmit a laser beam to the angle-adjustable intelligent wide-angle optical system 100 through the light source transmission optical fiber 11 under the control of the mainboard processor 201; the scanning driving board 302 is electrically connected to the two-dimensional scanner 22, and is used to drive the two-dimensional scanner 22 to perform scanning swings under the control of the mainboard processor 201.

[0046] It can be understood that the present application discloses a microendoscope including the above-mentioned angle-adjustable intelligent wide-angle optical system 100, a camera module 200 and a light source module 300. The mainboard processor 201 in the camera module 200 is electrically connected to the light source module 300, and is used to control the light source driving board 301 and the scanning driving board 302 in the light source module 300, respectively driving the laser light source in the angle-adjustable intelligent wide-angle optical system 100 to turn on / off and the swing of the two-dimensional scanner 22. In addition, the main processor is also connected to the sensor adapter board through the transmission optical fiber 40, and is used to convert the optical signal fed back by the sensor adapter board into an electrical signal again, and then the original image is processed into a target image through a series of image ISP algorithm processing and the image is reconstructed and output to the display 202 in a specified format for display.

[0047] It should be understood that in the embodiments of the present invention, the processor referred to may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0048] In an optional embodiment of the present application, the mainboard processor 201 is used to perform the following steps: Control the light source driving board 301 to generate a laser beam to supply the angle-adjustable intelligent wide-angle optical system 100; Controlling the scanning driving board 302 to drive the two-dimensional scanner 22 to perform scanning swinging to expand the irradiation range of the illumination light beam; Receive the optical signal fed back by the sensor adapter board, convert the optical signal into an electrical signal, and then control the display 202 to display the corresponding picture based on the electrical signal.

[0049] The expressions "first", "second", "the first" or "the second" used in various embodiments of the present disclosure may modify various components regardless of order and / or importance, but these expressions do not limit the corresponding components. The above expressions are only configured for the purpose of distinguishing an element from other elements. For example, a first user device and a second user device represent different user devices, although both are user devices. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0050] When one element (e.g., a first element) is referred to as being "(operably or communicatively) coupled" or "(operably or communicatively) coupled to" or "connected to" another element (e.g., a second element), it is understood that the one element is directly connected to the other element or the one element is indirectly connected to the other element via yet another element (e.g., a third element). Conversely, it is understood that when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled" to another element (the second element), no element (e.g., a third element) is interposed between the two.

[0051] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0052] The above description is only an optional embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

[0053] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0054] The above description is only an optional embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

[0055] The above description is only an optional embodiment of the present application and is 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 angle-adjustable intelligent wide-angle optical system, characterized in that: It includes a light source transmission optical fiber, a dichroic mirror, an illumination optical fiber, a collection optical fiber, a handle photoelectric conversion module, and a probe device arranged at the end of the endoscope handle; The light source transmission optical fiber is connected to a light source driving board that supplies a laser light source, and is used to transmit the laser light beam to the surface of the dichroic mirror for reflection; the head end of the illumination optical fiber is arranged toward the dichroic mirror, and the reflected light beam reflected by the dichroic mirror is coupled into the illumination optical fiber for transmission, and the end of the illumination optical fiber extends to the probe device; The probe device includes an opening and a two-dimensional scanner disposed toward the opening; The end of the illumination optical fiber emits an illumination beam toward the two-dimensional scanner, and the two-dimensional scanner swings under the drive of the control signal to reflect the illumination beam toward different angles, and the illumination beam irradiates the target living tissue through the opening; The head end of the collection optical fiber is arranged at the opening. The target living tissue generates fluorescence after being excited by the laser. The fluorescence is collected by the collection optical fiber and then transmitted. It is emitted toward the end of the dichroic mirror through the collection optical fiber, passes through the dichroic mirror, and is received by the handle photoelectric conversion module. The handle photoelectric conversion module is used to convert the received optical signal into an electrical signal.

2. The angle-adjustable intelligent wide-angle optical system according to claim 1, characterized in that: Include at least one of the following: The illumination optical fiber and the collection optical fiber are arranged in parallel with the single crystal substrate; The end of the illumination optical fiber is provided with an inclined surface coated with a reflective material, constituting a first reflective inclined surface; The head end of the collection optical fiber is provided with an inclined surface coated with a reflective material, forming a second reflective inclined surface; The first reflective slope is used to reflect the illumination light beam transmitted in the illumination optical fiber toward the two-dimensional scanner; The second reflective slope is used to reflect the ambient light beam incident from the opening toward the inside of the collection optical fiber.

3. The angle-adjustable intelligent wide-angle optical system according to claim 2, characterized in that: Include at least one of the following: A circular arc groove is provided on the side wall of the end of the illumination optical fiber, and the concave surface of the circular arc groove is used to diffuse the reflected light reflected by the first reflecting inclined surface; A circular arc groove is also provided on the side wall of the head end of the collection optical fiber, and the concave surface of the circular arc groove is used to converge the ambient light beam incident from the opening.

4. The angle-adjustable intelligent wide-angle optical system according to claim 1, characterized in that: The two-dimensional scanner includes a first magnet and a second magnet fixed on the housing of the probe device, a single crystal substrate fixed between the first magnet and the second magnet, and a reflective support plate; A receiving window is provided in the center of the single crystal substrate, the reflective support plate is arranged in the receiving window, and is attached to the single crystal substrate via a first flexible member and a second flexible member arranged along a rotation axis; A reflector is fixed at the center of the reflective support plate, and an electromagnetic coil is arranged around the reflector.

5. The angle-adjustable intelligent wide-angle optical system according to claim 4, characterized in that: The probe device is provided with a first opening and a second opening opposite to each other, and the first opening and the second opening are respectively provided at two opposite sides of the two-dimensional scanner; Reflecting mirrors are arranged on both the front and back sides of the reflecting support plate, wherein the front reflecting mirror is arranged toward the first opening, and the back reflecting mirror is arranged toward the second opening.

6. The angle-adjustable intelligent wide-angle optical system according to claim 5, characterized in that: Include at least one of the following: The illumination optical fiber comprises a single head end and two ends, wherein the first illumination end emits a light beam toward the front reflector, and the second illumination end emits a light beam toward the back reflector; The angle-adjustable intelligent wide-angle optical system includes two illumination optical fibers, the head ends of the two illumination optical fibers are both arranged toward the dichroic mirror, wherein the end of the first illumination optical fiber emits a light beam toward the front reflector, and the end of the second illumination optical fiber emits a light beam toward the back reflector.

7. The angle-adjustable intelligent wide-angle optical system according to claim 6, characterized in that: Include at least one of the following: The collection optical fiber comprises two head ends and a single end, wherein the first collection head end collects the ambient light beam toward the first opening, and the second collection head end collects the ambient light beam toward the second opening; The angle-adjustable intelligent wide-angle optical system includes two collection optical fibers, and the ends of the two illumination optical fibers are both arranged toward the dichroic mirror, wherein the head end of the first collection optical fiber faces the first opening to collect the ambient light beam, and the head end of the second collection optical fiber faces the second opening to collect the ambient light beam.

8. The angle-adjustable intelligent wide-angle optical system according to any one of claims 1 to 7, characterized in that: It also includes a sensor adapter board, which is electrically connected to the handle photoelectric conversion module through a cable. The sensor adapter board is used to sample and process the electrical signal transmitted by the handle photoelectric conversion module and convert the parallel-to-serial signal format, and convert the serialized electrical signal into an optical signal again.

9. A microendoscope, characterized in that: It comprises the angle-adjustable intelligent wide-angle optical system, the camera module and the light source module as claimed in claim 8; The camera module includes a mainboard processor and a display electrically connected to the mainboard processor, and the mainboard processor is also connected to the sensor adapter board through a transmission optical fiber; The light source module includes a light source driving board and a scanning driving board electrically connected to the mainboard processor; the light source driving board is connected to the light source transmission optical fiber, and is used to transmit a laser beam to the angle-adjustable intelligent wide-angle optical system through the light source transmission optical fiber under the control of the mainboard processor; the scanning driving board is electrically connected to the two-dimensional scanner, and is used to drive the two-dimensional scanner to perform scanning swing under the control of the mainboard processor.

10. The microendoscope according to claim 9, characterized in that: The motherboard processor is used to perform the following steps: Controlling the light source driving board to generate a laser beam to supply the angle-adjustable intelligent wide-angle optical system; Controlling the scanning driving board to drive the two-dimensional scanner to perform scanning swing, so as to expand the irradiation range of the illumination light beam; The optical signal fed back by the sensor adapter board is received, and the optical signal is converted into an electrical signal, and then the display is controlled to display a corresponding picture based on the electrical signal.

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