Examination device and endoscopic examination apparatus

Abstract

Embodiments of the present application relate to the technical field of medical instruments, and specifically relate to an examination device and an endoscopic examination apparatus, aiming to solve the problem in the related art of small range of application of an examination device. The examination device comprises a housing, an examination system and an image acquisition system; the housing is provided with an accommodating cavity; the examination system is located in the accommodating cavity and connected to the housing, and the examination system is configured to be electrically connected to an endoscope when the examination device is mounted in the endoscope, so as to process an image of a first position acquired by the endoscope; the image acquisition system is located in the accommodating cavity and connected to the housing, and the image acquisition system is configured to acquire the image of the second position, or acquire and process the image of the second position. According to the examination device, the function is increased, the range of application is expanded, the portability of endoscopic examination apparatuses is improved, and the collaborative integration of the endoscopic examination apparatuses is facilitated.

Description

Inspection devices and endoscopic inspection equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 14, 2023, with application number 202310713758.9 and application name “Inspection Device and Endoscopic Inspection Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of medical device technology, and in particular relates to an inspection device and an endoscopic inspection equipment. Background Art

[0003] In the field of medical technology, endoscopic examination equipment is commonly used to examine human cavities such as the ear, nose, throat, oral cavity, abdominal cavity, uterine cavity, or vagina. Endoscopic examination equipment generally includes an examination device for acquiring or processing images of human cavities.

[0004] However, the scope of application of related art inspection devices is limited. For example, the inspection device can only be adapted with a hysteroscope to form a uterine cavity inspection device, or can only be adapted with a dilator to form a vaginal inspection device. When performing multiple inspections of the uterine cavity, vagina, etc., each endoscopic inspection device must be equipped with an inspection device, resulting in a large number of parts for each endoscopic inspection device, making it inconvenient to carry.

[0005] Summary of the Invention

[0006] In view of this, the embodiments of the present application provide an inspection device and an endoscopic inspection equipment to solve the technical problem that the inspection device has a small scope of application.

[0007] A first aspect of an embodiment of the present application provides an inspection device, comprising a shell, an inspection system and an image acquisition system; the shell has a accommodating cavity; the inspection system is located in the accommodating cavity and connected to the shell, and the inspection system is configured to be electrically connected to the endoscope when the inspection device is installed in the endoscope, so as to process an image of a first position acquired by the endoscope; the image acquisition system is located in the accommodating cavity and connected to the shell, and the image acquisition system is configured to acquire an image of a second position, or to acquire and process an image of the second position.

[0008] When the inspection device is installed in the endoscope, the inspection system can be electrically connected to the endoscope to process the image of the first position obtained by the endoscope. The image acquisition system can obtain, or obtain and process the image of the second position. Therefore, the inspection device of the embodiment of the present application can not only inspect and / or treat the first position, but also inspect and / or treat the second position, which increases the function of the inspection device and thus expands the scope of application of the inspection device. When performing multiple inspections and / or treatments on the first position and the second position, such as the ear, nose, throat, oral cavity, abdominal cavity, uterine cavity, vagina and other human cavities, as well as human body surfaces such as skin, various endoscopic inspection equipment can share the inspection device of the embodiment of the present application, which reduces the number of parts of each endoscopic inspection equipment, improves the portability of the endoscopic inspection device, and is conducive to the coordinated integration of various endoscopic inspection equipment.

[0009] A second aspect of an embodiment of the present application provides an endoscopic inspection device, comprising the inspection device as described in any one of the above items.

[0010] Since the endoscopic inspection device of the embodiment of the present application includes any of the inspection devices described above, the endoscopic inspection device also has the advantages of any of the inspection devices described above, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of the three-dimensional structure of an endoscopic inspection device according to an embodiment of the present application;

[0012] FIG2 is a schematic diagram of the three-dimensional structure of an endoscopic inspection device in some possible implementations of the embodiments of the present application;

[0013] FIG3 is a schematic diagram of the three-dimensional structure of the inspection device in FIG2 ;

[0014] FIG4 is a schematic diagram of the three-dimensional structure of an inspection device in some possible implementations of the embodiments of the present application;

[0015] FIG5 is a schematic diagram of the three-dimensional structure of the inspection device in FIG4 when the housing is hidden;

[0016] FIG6 is a schematic diagram of the three-dimensional structure of FIG5 when the inspection device hides the first mounting bracket;

[0017] FIG7 is a schematic diagram of a first partial structure of the image acquisition system in FIG6 ;

[0018] FIG8 is a schematic diagram of the optical path of the image acquisition system in FIG7 ;

[0019] FIG9 is a schematic diagram of a second partial structure of the image acquisition system in FIG6 ;

[0020] FIG10 is a schematic diagram of a third partial structure of the image acquisition system in FIG6 ;

[0021] FIG11 is a schematic diagram of the explosion structure of the inspection device in FIG4 . DETAILED DESCRIPTION

[0022] In view of the fact that the inspection device in the related technology has a small scope of application, when conducting multiple inspections such as the uterine cavity and vagina, each endoscopic inspection equipment requires an inspection device, which leads to a large number of parts for various endoscopic inspection devices and is inconvenient to carry. The inventors have found that the reason is that the inspection device has a single function.

[0023] In view of this, the inspection device of an embodiment of the present application is provided with an inspection system and an image acquisition system. When the inspection device is installed in an endoscope, the inspection system can be electrically connected to the endoscope to process the image of the first position acquired by the endoscope; when the inspection device is not installed in the endoscope, the image acquisition system can acquire the image of the second position.

[0024] Therefore, the inspection device of the embodiment of the present application can not only inspect and / or treat the first position, but also inspect and / or treat the second position, thereby expanding the scope of application of the inspection device. When inspecting the first position and the second position, such as the human body cavities such as the ears, nose and throat, oral cavity, abdominal cavity, uterine cavity, vagina, and human body surfaces such as skin, various endoscopic inspection equipment can share the inspection device of the embodiment of the present application, reducing the number of parts of various endoscopic inspection equipment, improving the portability of the endoscopic inspection device, and facilitating the coordinated integration of various endoscopic inspection equipment.

[0025] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] An embodiment of the present application provides an endoscopic inspection device, which may include an inspection device. The endoscopic inspection device can inspect and / or treat a first location. Referring to Figure 1, the endoscopic inspection device may further include an endoscope 20. The inspection device 10 can be installed in the endoscope 20, for example, the inspection device 10 can be plugged into the endoscope 20 or screwed into the endoscope 20. The inspection device 10 can be electrically connected to the endoscope 20 to inspect and / or treat the first location. The first location can be a human body cavity such as the uterine cavity, nasal cavity, and abdominal cavity.

[0027] The endoscope 20 refers to a visual medical device for inspecting and / or treating human cavities. Exemplarily, the endoscope 20 may be a hysteroscope, a nasal scope, or a laparoscope. Referring to FIG1 , the endoscope 20 may include a first operating handle 600, a mirror tube 610, and an endoscope circuit board (not shown in the drawings). The first operating handle 600 has a first accommodating cavity with an open bottom end, and the endoscope circuit board is installed in the first accommodating cavity. The mirror tube 610 is connected to the first operating handle 600. The inspection device 10 can be installed in the first accommodating cavity via the bottom end of the first operating handle 600. For example, the inspection device 10 can be plugged into the first accommodating cavity or screwed into the first accommodating cavity. The inspection device 10 is electrically connected to the endoscope circuit board.

[0028] When inspecting and / or treating the first position, the mirror tube 610 can be inserted into the first accommodating cavity. The mirror tube 610 can obtain an image of the first position and transmit the image to the inspection device 10 through the endoscope circuit board, thereby inspecting and / or treating the first position.

[0029] The endoscopic examination device can also inspect and / or treat a second location. This second location can be an open human cavity, such as the mouth, or an exposed human surface, such as the skin. For example, when inspecting and / or treating the oral cavity, the inspection device 10 can be inserted into the open mouth. The inspection device 10 can capture and process images of the oral cavity, thereby performing an inspection of the oral cavity. When inspecting the skin, the inspection device 10 can be placed against the skin to perform inspection and / or treatment of the skin.

[0030] The second location may also be a human cavity with a closed opening, such as the vagina. Referring to FIG2 , in some possible implementations of the present invention, the endoscopic inspection apparatus may also include a dilator 30, and the inspection device 10 may be installed within the dilator 30. For example, the inspection device 10 may be inserted into the dilator 30 or screwed into the dilator 30.

[0031] The dilator 30 is a device that can be inserted into a closed-opening human body cavity, such as the vagina, to expand the space within the cavity, thereby facilitating inspection. For example, referring to Figure 2 , the dilator 30 may include a second operating handle 700, a lower leaf 710, and an upper leaf 720. The second operating handle 700 has a second accommodating chamber with an open bottom end and a viewing window at its top end. The lower leaf 710 can be located below the viewing window and connected to the second operating handle 700. The upper leaf 720 can be located above the viewing window and rotatably connected to the second operating handle 700. The upper leaf 720 can rotate relative to the second operating handle 700 to open or close with the lower leaf 710. When the upper leaf 720 and the lower leaf 710 are open, the viewing window is exposed. When the upper leaf 720 and the lower leaf 710 are closed, the viewing window is blocked. The inspection device 10 can be mounted within the second accommodating chamber via the bottom end of the second operating handle 700. For example, the inspection device 10 can be inserted into the second accommodating cavity, or can be screwed into the second accommodating cavity.

[0032] When inspecting and / or treating a second location, such as a human body cavity such as the vagina, the upper leaf 720 can be controlled to rotate relative to the second operating handle 700, thereby closing with the lower leaf 710. The closed upper leaf 720 and lower leaf 710 are inserted into the second location. The upper leaf 720 is then controlled to rotate in the opposite direction relative to the second operating handle 700, thereby opening with the lower leaf 710, exposing a viewing window and expanding the space of the second location. The inspection device 10 can capture images of the second location through the exposed viewing window, thereby enabling inspection and / or treatment of the second location.

[0033] The inspection device 10 of the embodiment of the present application can inspect and / or treat both the first position and the second position, thereby increasing the functionality of the inspection device 10 and expanding the scope of application of the inspection device 10. When performing multiple inspections and / or treatments of human cavities such as the ear, nose, throat, oral cavity, nasal cavity, abdominal cavity, uterine cavity, vagina, and human body surfaces such as the skin, various endoscopic inspection equipment can share the inspection device 10, reducing the number of overall components of all endoscopic inspection equipment and improving the portability of the endoscopic inspection device; and it is conducive to the coordinated integration of various endoscopic inspection equipment.

[0034] For example, during the process of gynecological diagnosis and treatment, the inspection device of the embodiment of the present application can be installed in a hysteroscope, so that the inspection device is electrically connected to the hysteroscope to form a uterine cavity inspection device with the hysteroscope. The inspection device of the embodiment of the present application can process the image of the uterine cavity obtained by the hysteroscope, thereby inspecting and / or treating the uterine cavity. In addition, the inspection device of the embodiment of the present application can also be installed in a dilator to form a vaginal inspection device with the dilator. The inspection device of the embodiment of the present application cooperates with the dilator to obtain images inside the vagina, thereby inspecting and / or treating the vagina. In this way, the number of parts of various endoscopic inspection equipment used in the process of gynecological diagnosis and treatment can be reduced, and the convenience of carrying these endoscopic inspection devices can be improved. Moreover, the coordinated integration of various endoscopic inspection equipment in gynecological diagnosis and treatment equipment can also be achieved.

[0035] 3, 4, and 5, the inspection device 10 may include a housing 100, an inspection system 200, and an image acquisition system 300. The housing 100 has a housing cavity. The inspection system 200 may be located within the housing cavity and connected to the housing 100. When the inspection device 10 is installed within the endoscope 20, the inspection system 200 is configured to electrically connect to the endoscope 20 to process an image captured by the endoscope 20 at a first location. The image acquisition system 300 may be located within the housing cavity and connected to the housing 100. The image acquisition system 300 is configured to capture an image at a second location, or to capture and process an image at the second location.

[0036] When the inspection device 10 is installed in the endoscope 20, the inspection system 200 can be electrically connected to the endoscope 20 to process the image of the first position acquired by the endoscope 20. The image acquisition system 300 can acquire an image of the second position, or acquire and process the image of the second position. Therefore, the inspection device 10 of the embodiment of the present application can not only inspect and / or treat the first position, but also inspect and / or treat the second position, thereby increasing the functionality of the inspection device 10 and expanding the scope of application of the inspection device 10. When performing multiple inspections and / or treatments on the first position and the second position, such as the human body cavities such as the ears, nose and throat, oral cavity, abdominal cavity, uterine cavity, vagina, and human body surfaces such as the skin, various endoscopic inspection equipment can share the inspection device 10 of the embodiment of the present application, reducing the number of components of the endoscopic inspection equipment, improving the portability of the endoscopic inspection equipment, and facilitating the coordinated integration of various endoscopic inspection equipment.

[0037] Exemplarily, the housing 100 may include a first housing 110 and a second housing 120 that are detachably connected. The first housing 110 and the second housing 120 may both be semi-cylindrical structures, and the two semi-cylindrical structures are buckled together to enclose a receiving cavity.

[0038] For example, a seal may be provided between the first housing 110 and the second housing 120. The seal provides a sealed connection between the first housing 110 and the second housing 120 to improve the sealing of the enclosed accommodating cavity, thereby preventing external impurities such as moisture, liquid, and dust from entering the accommodating cavity and reducing the reliability of the inspection device 10. The seal may be a rubber seal or a nylon seal.

[0039] Exemplarily, the housing 100 has a first end and a second end, wherein the second end of the housing 100 and the first end of the housing 100 are opposite ends in the extension direction of the housing 100. The first end of the housing 100 can be configured to dock with the endoscope 20. For example, as shown in Figures 3 and 4, the first end of the housing 100 is the top end of the housing 100, and the second end of the housing 100 is the bottom end of the housing 100.

[0040] The first end of the shell 100 may be provided with a first connection window 111. The inspection system 200 may have a first connection terminal 221, and the first connection terminal 221 is exposed by the first connection window 111. When the inspection device 10 is installed in the endoscope 20, the first connection terminal 221 may be electrically connected to the endoscope 20. Exemplarily, the first connection window 111 may be provided at the first end of the first shell 110. Referring to Figure 3, the first connection terminal 221 may be a metal contact. Referring to Figure 4, the first connection terminal 221 may also be a USB Type-C interface. It is understandable that the first connection terminal 221 may also be other types of connection terminals, which will not be described in detail in the embodiments of the present application.

[0041] The first end of the housing 100 may also be provided with a light-transmitting window 121, which is spaced apart from the first connection window 111. The image acquisition system 300 located in the housing 100 can acquire an image of the second position through the light-transmitting window 121. For example, the light-transmitting window 121 may be provided at the first end of the second housing 120.

[0042] For example, the light-transmitting window 121 may be covered with a light-transmitting protective sheet 122. The light-transmitting protective sheet 122 can protect the image acquisition system 300 located within the housing 100 from contamination. The protective sheet 122 may also be provided with an anti-reflection film to increase the amount of light entering the image acquisition system 300, thereby improving the quality of images captured by the image acquisition system 300. The side of the protective sheet 122 facing away from the accommodating cavity may also be provided with a hydrophobic coating to prevent moisture, liquids, etc. from adhering to the light-transmitting protective sheet 122 and affecting the quality of images captured by the image acquisition system 300.

[0043] The first end of the housing 100 may include a first outer end surface 130 and a second outer end surface 140 that are connected. The end surface of the housing 100 provided with the first connection window 111 may be the first outer end surface 130, and the end surface of the housing 100 provided with the light-transmitting window 121 may be the second outer end surface 140. A first angle α may be formed between the first outer end surface 130 and the second outer end surface 140, and the first angle α may be less than 180°. This arrangement allows the light-transmitting window 121 and the first connection window 111 to face different directions, thereby preventing mutual interference between the inspection system 200 and the image acquisition system 300.

[0044] 3 and 4 , a second angle β may be formed between the second outer end surface 140 of the housing 100, on which the light-transmitting window 121 is provided, and the extension direction of the outer surface of the housing 100. The second angle β may be greater than or equal to 10° and less than or equal to 45°. For example, the second angle β may be 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°. A second angle β within this range allows the housing 100 to be tilted when the inspection device 10 is inspecting and / or treating the second location, thereby facilitating the operator's grip on the inspection device 10. For example, when using the inspection device 10 to inspect and / or treat a human surface such as skin, the operator needs to hold the housing 100 of the inspection device 10 so that the light-transmitting window 121 faces the human surface such as skin. Because the second outer end surface 140 of the housing 100, on which the light-transmitting window 121 is provided, forms a second angle β with the extension direction of the outer surface of the housing 100, thereby creating a gripping space between the housing 100 and the human surface such as skin, thereby facilitating gripping by the operator. If the second angle β is too small or too large, the gripping space may be reduced, reducing the operator's gripping comfort, or the amount of light entering the image acquisition system 300 through the light-transmitting window 121 may be reduced, thereby affecting image quality.

[0045] The housing 100 may further include a connecting tube 150. A first connecting hole may be provided at the second end of the housing 100. The connecting tube 150 is positioned over the first connecting hole and connects to the accommodating chamber through the first connecting hole. A connecting cable may be provided within the accommodating chamber and sequentially threaded through the first connecting hole and the connecting tube to electrically connect to external devices such as a display, computer, and surgical instruments.

[0046] The second end of the housing 100 may be provided with a second connection window. As shown in FIG5 , the inspection system 200 may have a second connection terminal 231, which is exposed by the second connection window. The inspection system 200 within the housing 100 can be electrically connected to an external device via the second connection terminal 231 to enable signal transmission between the endoscope 20, the first mainboard 210, and the external device. For example, an image of the first position acquired by the endoscope 20 can be processed by the inspection system 200 and then transmitted to the external device.

[0047] Exemplarily, a guide groove may be provided on the outside of the shell 100 , and the guide groove may be provided along the extension direction of the shell 100 , so that the liquid can flow in the guide groove, thereby guiding the liquid to prevent the liquid from entering the shell 100 and affecting the reliability of the inspection device 10 .

[0048] The inspection system 200 may be located within the housing 100. Exemplarily, with reference to FIG5 and FIG6 , the inspection system 200 may include a first main board 210, a first connection circuit board 220, and a second connection circuit board 230. The first main board 210 is connected to the housing 100. For example, the first main board 210 may be connected to the housing 100 by bolts. The first main board 210 may include a first image processing circuit that can process the image of the first position acquired by the endoscope 20. It is understandable that in some possible implementations of the embodiments of the present application, the first main board 210 may also include a first control circuit to control the endoscope 20 and other components electrically connected to the first main board 210 to implement related functions of the endoscope 20 and other components, such as controlling the hysteroscope to inject distending fluid into the uterine cavity.

[0049] Exemplarily, the inspection system 200 may further include a first connection circuit board 220. The first connection circuit board 220 is connected to the housing 100 and is proximate to the first end of the housing 100. For example, the first connection circuit board 220 may be indirectly connected to the housing 100 via a first mounting bracket 335. The first connection circuit board 220 is electrically connected to the first mainboard 210. For example, the first connection circuit board 220 may be electrically connected to the first mainboard 210 via a flexible flat cable (FFC) or a harness. The first connection circuit board 220 has a first connection terminal 221.

[0050] For example, the inspection system 200 may further include a second connection circuit board 230. The second connection circuit board 230 is connected to the housing 100 and is located near the second end of the housing 100. For example, the second connection circuit board 230 may be bolted to the housing 100. The second connection circuit board 230 is electrically connected to the first mainboard 210. For example, the second connection circuit board 230 may be electrically connected to the first mainboard 210 via an FFC or a cable harness. The second connection circuit board 230 has second connection terminals 231 for electrically connecting to external devices. The external devices may include displays, computers, surgical instruments, and the like.

[0051] After the endoscope 20 acquires an image at a first location, it can transmit the image at the first location to the first connection circuit board 220 via the first connection terminal 221. The image at the first location is then transmitted to the first main board 210 for processing, and then transmitted to the second connection circuit board 230, and then transmitted to the external device via the second connection terminal 231. In addition, the first main board 210 can also control the endoscope 20 and the external device via the first connection terminal 221 and the second connection terminal 231.

[0052] For example, the second connection circuit board 230 may also be provided with a third connection terminal (not shown in the drawings). The second end of the housing 100 may be provided with a third connection window (not shown in the drawings), which exposes a third connection terminal. The third connection terminal is used to electrically connect to a surgical instrument such as a laser knife. The third connection terminal electrically connects the surgical instrument to the first mainboard 210, allowing the surgical instrument to perform a therapeutic operation under the control of the first control circuit of the first mainboard 210, thereby giving the inspection device 10 of the embodiment of the present application a therapeutic function, further increasing the functionality of the inspection device 10.

[0053] 5 and 6 , the inspection system 200 may further include a key assembly 240 electrically connected to the first mainboard 210. The key assembly 240 can be operated to control the first image processing circuit, the first control circuit, and the like within the first mainboard 210 to implement various functions of the inspection device 10. For example, a key window 112 may be provided on the sidewall of the housing 100, and a portion of the key assembly 240 may extend out of the key window 112 to facilitate key operation of the key assembly 240.

[0054] For example, with continued reference to FIG. 11 , the key assembly 240 may include a key switch 241, a key pressure plate 242, and a key board 243. The key switch 241 is located on the side of the first mainboard 210 facing the key window 112 and is electrically connected to the first mainboard 210. For example, the key switch 241 may be soldered to the first mainboard 210. Pressing the key switch 241 controls the first control circuit within the first mainboard 210, thereby controlling the endoscope 20, external devices, and the like. The key pressure plate 242 is located on the side of the first mainboard 210 facing the key window 112 and is connected to the housing 100. The key pressure plate 242 may be provided with a key through-hole 244, which covers the key switch 241. The key board 243 may be located on the side of the key pressure plate 242 facing away from the key switch 241. The key board 243 includes a key portion 245 and a stopper 246 circumferentially connected to the key portion 245. A key groove 247 may be provided on the side of the key portion 245 facing the key switch 241. The key groove 247 is sleeved on the key switch 241, and a portion of the key portion 245 extends out of the key window 112. In other words, the key portion 245 covers the key switch 241, which can protect the key switch 241. Moreover, the key switch 241 can be operated by pressing the key portion 245, thereby improving the convenience of key operation. The limiter 246 is located between the key plate 242 and the housing 100. When the key plate 242 is connected to the housing 100, the limiter 246 is fixed between the key plate 242 and the housing 100, thereby improving the convenience of fixing the key plate 243.

[0055] The image acquisition system 300 is located within the housing 100. For example, referring to Figures 6, 7, and 8, the image acquisition system 300 may include a second mainboard 310, a light source assembly 320, and an image acquisition assembly 330. The second mainboard 310 is connected to the housing 100. An image acquisition circuit may be formed within the second mainboard 310 to enable the image acquisition system 300 to acquire an image of a second location. In some possible implementations of the present embodiment, the second mainboard 310 may also include a second image processing circuit to enable image processing and other functions of the image acquisition system 300. For example, the second mainboard 310 may have a fourth connection terminal 311 disposed at its second end facing the housing 100. The fourth connection terminal 311 may be a power port or a USB Type-C port, for example. The fourth connection terminal 311 can be connected to an external device via a cable inserted into the connecting barrel 150. It is understood that the fourth connection terminal 311 may also be other types of connection terminals, which will not be described in detail in this embodiment. The external device may be a display, a computer, a power supply, or a surgical instrument, for example.

[0056] In some possible implementations of the present application, the second mainboard 310 can be electrically connected to the first mainboard 210. The second mainboard 310 can be controlled by the first control circuit within the first mainboard 210. For example, the first control circuit can be controlled by operating the key assembly 240, thereby controlling other components of the image acquisition system 300, such as the light source assembly 320 or the image acquisition assembly 330. For example, the second mainboard 310 can also transmit the image of the second location to the first image processing circuit of the first mainboard 210 for processing.

[0057] In other possible implementations of the present invention, the second mainboard 310 may include a second control circuit configured to control the image acquisition system 300 to automatically acquire and process images of the second location. For example, the second mainboard 310 may be connected to an external device via the fourth connection terminal 311, allowing the external device to control the second control circuit, or vice versa.

[0058] For example, the housing 100 may be provided with an indicator light hole (not shown in the drawings). The inspection system 200 and / or the image acquisition system 300 may also be provided with a status indicator light and a light guide column, and the status indicator light is used to indicate the working status of the inspection system 200 and / or the image acquisition system 300. The light guide column is installed in the indicator light hole and is connected to the indicator light. When the inspection system 200 and / or the image acquisition system 300 is working, the indicator light illuminates, and the light emitted by the indicator light is emitted from the indicator light hole of the housing 100 via the light guide column, so that the operator can confirm the working status of the inspection device 10 of the embodiment of the present application based on the state of the light emitted from the indicator light hole, thereby improving the convenience of operation of the inspection device 10.

[0059] The light-emitting side of the light source assembly 320 can face the light-transmitting window 121 and be electrically connected to the second mainboard 310. The light-emitting side of the light source assembly 320 refers to the side of the light source assembly 320 that can emit light. When the light source assembly 320 emits light, the light it emits can pass through the light-transmitting window 121 and illuminate the second location, thereby illuminating the second location.

[0060] For example, a light-absorbing layer may be provided on the edge of the light-transmitting protective sheet 122 facing the light source assembly 320. When the light source assembly 320 emits light, the light-absorbing layer absorbs the light directed toward the edge of the light-transmitting protective sheet 122, preventing the light-transmitting protective sheet 122 from reflecting the light and causing it to enter the image acquisition assembly 330 and form stray light, thereby improving the quality of the image captured by the image acquisition assembly 330.

[0061] Image capture assembly 330 can be electrically connected to second mainboard 310. As shown in Figures 7 and 8, image capture assembly 330 has a first light incident surface 3311, which is opposite to light-transmitting window 121 and receives external light. Image capture assembly 330 can capture light from a second location through light-transmitting window 121 to form an image of the second location.

[0062] The second main board 310 can control the light source assembly 320 to emit light. The light emitted by the light source assembly 320 is irradiated to the second position through the light-transmitting window 121. The second position reflects the light emitted by the light source assembly 320 to the image acquisition assembly 330. The image acquisition assembly 330 images the second position and then transmits the image of the second position to the second main board 310. The second main board 310 processes the image of the second position, etc.

[0063] Exemplarily, with reference to Figures 5 to 8, the light source assembly 320 may include a light source circuit board 321 and a plurality of light-emitting devices 322. The light source circuit board 321 is connected to the housing 100. For example, the light source circuit board 321 may be indirectly connected to the housing 100 via a first mounting bracket 335. The light source circuit board 321 is electrically connected to the second main board 310 so as to be controlled by the second main board 310. The light source circuit board 321 may be electrically connected to the second main board 310 via an FFC or a harness. In some possible implementations of the embodiments of the present application, the light source circuit board 321 may be a flexible printed circuit (FPC) that can be directly soldered to the second main board 310. The light source circuit board 321 may be provided with an avoidance hole 323 that surrounds at least a portion of the first light incident surface 3311 to prevent the light source circuit board 321 from blocking the first light incident surface 3311. A plurality of light-emitting devices 322 are provided on the light source circuit board 321 to emit light under the action of the light source circuit board 321. Exemplarily, the light-emitting device 322 may be a light-emitting diode (LED).

[0064] The light emitted by the multiple light-emitting devices 322 may include at least one of white light, green light, purple light, infrared light and ultraviolet light to provide a variety of illumination spectra for the second position, so that the image acquisition component 330 can acquire images of different spectra of the second position, and further enable the inspection device 10 to perform different detections on the second position.

[0065] For example, the light emitted by the plurality of light emitting devices 322 may be white light, and the spectral range of the white light may be 420-680 nm. The plurality of light emitting devices 322 may provide white light illumination for the second location, and the image acquisition component 330 may acquire a white light image of the second location, thereby enabling the inspection device 10 to perform conventional white light inspection of the second location.

[0066] For example, the light emitted by the multiple light-emitting devices 322 may include green and violet light, and the central wavelength of the green light may be 540 nm. The central wavelength of the violet light emitted by the multiple light-emitting devices 322 may be 415 nm. The multiple light-emitting devices 322 may provide green and violet light illumination for the second location, and the image acquisition component 330 may capture green and violet light images of the second location, thereby enabling the inspection device 10 to perform narrow-band imaging (NBI) on the subepidermal and supraepidermal blood vessels at the second location.

[0067] For example, the light emitted by the plurality of light-emitting devices 322 may be infrared light, and the central wavelength of the infrared light may be 780 nm. The plurality of light-emitting devices 322 may provide infrared light to the second location to excite the targeting agent at the second location to emit fluorescence. The image acquisition component 330 may acquire a fluorescent image of the targeting agent at the second location, thereby enabling the inspection device 10 to perform fluorescence detection of the targeting agent at the second location.

[0068] For example, the light emitted by the plurality of light-emitting devices 322 may be ultraviolet light, and the central wavelength of the ultraviolet light may be 340 nm. The plurality of light-emitting devices 322 may provide ultraviolet light to the second location to stimulate the second location to emit fluorescence. The image acquisition component 330 may acquire an autofluorescence image of the second location, thereby enabling the inspection device 10 to perform autofluorescence detection on the second location.

[0069] The image acquisition component 330 can acquire an image of the second position. Exemplarily, the image acquisition component 330 may include an imaging camera installed in the housing 100, with the light incident surface of the imaging camera facing the light-transmitting window 121 to receive external light for imaging.

[0070] In some possible implementations of the embodiments of the present application, referring to Figures 5 to 8, the image acquisition component 330 may include a beam splitter prism 331, a first camera 332, and a second camera 333. The beam splitter prism 331 has a first light incident surface 3311. External light enters the beam splitter prism 331 through the first light incident surface 3311 and is divided into a first light path A and a second light path B that are perpendicular to each other. For example, referring to Figures 7 and 8, the beam splitter prism 331 may include two right-angle prisms with oblique surfaces attached to each other. One right-angle surface of one right-angle prism is the first light incident surface 3311, the other right-angle surface of the right-angle prism is the second light exit surface 3314, and the oblique surfaces attached to each other are the beam splitter surface 3312. One right-angle surface of the other right-angle prism is the first light exit surface 3313. External light can enter the spectroscopic prism 331 through the first light incident surface 3311, and when it is incident on the spectroscopic surface 3312, it is divided into a first light path A and a second light path B that are perpendicular to each other at the spectroscopic surface 3312. The first light path A is emitted through the first light exit surface 3313, and the second light path B is emitted through the second light exit surface 3314.

[0071] For example, the ratio of the luminous flux between the first optical path A and the second optical path B can be 1:1. It is understandable that the ratio of the luminous flux between the first optical path A and the second optical path B can also be other values, such as 1:2, etc., which will not be described in detail in the present embodiment.

[0072] A first camera 332 may be located on the first optical path A and configured to form an image having a first magnification. A second camera 333 may be located on the second optical path B and configured to form an image having a second magnification, which may be greater than the first magnification. With this arrangement, the image acquisition component 330 can acquire images at different magnifications, thereby facilitating an operator's examination and / or treatment of a second location.

[0073] For example, the focal length of the second camera 333 may be greater than that of the first camera 332, so that the second magnification of the second camera 333 can be greater than the first magnification of the first camera 332. For example, the focal length of the second camera 333 may be 12 to 16 mm, and the focal length of the first camera 332 may be 3.6 to 4.7 mm.

[0074] The field of view of the second camera 333 may be smaller than that of the first camera 332. For example, the field of view of the second camera 333 may be 40×30 mm, and the field of view of the first camera 332 may be 80×60 mm, so that the image acquisition component 330 can acquire images with different fields of view, thereby facilitating the operator to inspect and / or treat the second location.

[0075] For example, the number of pixels of the second camera 333 and the first camera 332 may be 5 mega pixels (MP for short).

[0076] For example, along the extension direction of the first optical path A, the first camera 332 may include, in sequence, a first optical lens group, a first dual-bandpass filter, and a first image sensor. After entering the first optical lens group, external light is incident on the first dual-bandpass filter, which filters the light. The filtered light then enters the first image sensor for imaging. For example, the first image sensor may be a complementary metal oxide semiconductor (CMOS) image sensor or a charge-coupled device (CCD) image sensor. The first dual-bandpass filter can filter the light entering the first camera 332, thereby improving the spectral accuracy of the light entering the first camera 332 and, in turn, improving the quality of the resulting image.

[0077] The first dual-bandpass filter has a first filtering wavelength range and a second filtering wavelength range. The first filtering wavelength range can be 400-680 nm, and the second filtering wavelength range can be 810-830 nm. The first dual-bandpass filter can filter light within two wavelength ranges, eliminating the need for two separate filters. This simplifies the mechanical structure of the first camera 332 and reduces the size of the first camera 332, facilitating miniaturization of the inspection device 10.

[0078] For example, along the extension direction of the second optical path B, the second camera 333 may include, in sequence, a second optical lens assembly, a second dual-bandpass filter, and a second image sensor. After entering the second optical lens assembly, external light is incident on the second dual-bandpass filter, which filters the light. The filtered light then enters the second image sensor for imaging. For example, the second image sensor may be a CMOS image sensor or a CCD image sensor. The second dual-bandpass filter can filter the light entering the second camera 333, thereby improving the spectral accuracy of the light entering the second camera 333 and, consequently, the quality of the resulting image.

[0079] The second dual-bandpass filter has a third filtering wavelength range and a fourth filtering wavelength range. The third filtering wavelength range can be 400-680 nm, and the fourth filtering wavelength range can be 810-830 nm. The second dual-bandpass filter can filter light within two wavelength ranges, eliminating the need for two separate filters. This simplifies the mechanical structure of the second camera 333 and reduces the size of the second camera 333, facilitating miniaturization of the inspection device 10.

[0080] It should be noted that when the light emitted by the multiple light-emitting devices 322 is ultraviolet light, it can excite the second position to emit fluorescence. The wavelength range of the fluorescence emitted by the second position is usually 450 to 460 nm. Therefore, the fluorescence can pass through the first dual-bandpass filter into the first camera 332 and pass through the second dual-bandpass filter into the second camera 333.

[0081] For example, referring to Figures 5 to 8, the image acquisition assembly 330 may further include a steering prism 334, which is located on the second optical path B and between the beam splitter prism 331 and the second camera 333. The steering prism 334 can change the direction of the second optical path B and fold the second optical path B to shorten the distance between the beam splitter prism 331 and the second camera 333, thereby reducing the space occupied by the image acquisition assembly 330 and facilitating the miniaturization of the inspection device 10.

[0082] The turning prism 334 may include a second light incident surface 3341, a first light reflecting surface 3342, a second light reflecting surface 3343, and a third light exiting surface 3344. The second light incident surface 3341 is opposite the second light exiting surface 3314. The first light reflecting surface 3342 is opposite the second light incident surface 3341. The second light reflecting surface 3343 is opposite the first light reflecting surface 3342 and adjacent to the second light incident surface 3341. The third light exiting surface 3344 is located between the first light reflecting surface 3342 and the second light reflecting surface 3343.

[0083] The light emitted from the second light exit surface 3314 enters the second light incident surface 3341 and is then reflected by the first light reflecting surface 3342 . The light is reflected to the second light reflecting surface 3343 , and then reflected by the second light reflecting surface 3343 , and is emitted from the third light exit surface 3344 and enters the second camera 333 .

[0084] For example, the image acquisition assembly 330 may further include a first mounting bracket 335, which is connected to the housing 100. For example, the first mounting bracket 335 may be bolted to the housing 100. The beam splitter prism 331, the steering prism 334, the first camera 332, and the second camera 333 are all mounted on the first mounting bracket 335. During the assembly and adjustment of the image acquisition assembly 330, the orientation of the beam splitter prism 331, the steering prism 334, the first camera 332, and the second camera 333 can be adjusted by adjusting the structure of the first mounting bracket 335, thereby improving the convenience of assembling and adjusting the image acquisition assembly 330.

[0085] The image acquisition system 300 may also include a first moving mechanism (not shown in the drawings), which is installed in the shell 100 and connected to the first camera 332 to drive the first camera 332 to move along the first optical path A, thereby adjusting the position of the first camera 332 so that the first camera 332 can focus, thereby improving the quality of the image formed by the first camera 332.

[0086] The first moving mechanism may include a voice coil motor (VCM), and the movement stroke provided by the VCM for the second camera 333 may be greater than or equal to 0.2 mm.

[0087] For example, referring to Figures 9 and 11 , the second image sensor 3335 of the second camera 333 can slide relative to the housing 100 along the second optical path. For example, the second camera 333 can further include a lens barrel 3336 and a base 3331. The lens barrel 3336 is used to mount the second optical lens assembly and is connected to the first mounting bracket 335. The base 3331 is provided with a mounting hole, and the mounting hole cover is provided on the second image sensor 3335. The base 3331 is connected to the second image sensor 3335. The mounting hole is also provided on the lens barrel 3336, allowing the base 3331 to slide relative to the lens barrel 3336.

[0088] The image acquisition system 300 may also include a second moving mechanism 340, which is installed in the shell 100 and connected to the second image sensor 3335 of the second camera 333 to drive the second image sensor 3335 to move along the second optical path B, thereby adjusting the position of the second image sensor 3335 so that the second camera 333 can focus, thereby improving the quality of the image formed by the second camera 333.

[0089] For example, as shown in Figures 9 and 11, the second moving mechanism 340 may include a second mounting frame 341, a drive screw 342, a drive nut 343, and a drive motor 344. The second mounting frame 341 is connected to the housing 100. For example, the second mounting frame 341 may include a connecting plate 3411 and two mounting plates 3412. The connecting plate 3411 may be connected to the first mounting frame 335 connected to the housing 100. The two mounting plates 3412 are spaced apart along the optical axis of the second camera 333 and are both connected to the connecting plate 3411. The drive screw 342 is disposed along the optical axis of the second camera 333, and both ends of the drive screw 342 are rotatably connected to the second mounting frame 341. For example, the ends of the drive screw 342 may be rotatably connected to the two mounting plates 3412, respectively. The drive screw 342 is also connected to the drive motor 344. The transmission nut 343 is sleeved on the transmission screw 342 and is slidably connected to the second mounting bracket 341 along the optical axis of the second camera 333 . The transmission nut 343 is connected to the base 3331 connected to the second image sensor 3335 .

[0090] When the driving motor 344 is in operation, it can drive the transmission screw 342 to rotate relative to the second mounting bracket 341. Since the transmission nut 343 is slidably connected to the second mounting bracket 341 along the optical axis of the second camera 333, the transmission nut 343 slides along the optical axis of the second camera 333 on the transmission screw 342. The transmission nut 343 drives the second image sensor 3335 to slide along its optical axis, thereby adjusting the position of the second image sensor 3335.

[0091] The driving nut 343 may be directly connected to the second image sensor 3335 .

[0092] In some possible implementations of the present invention, the transmission nut 343 may also be indirectly connected to the second image sensor 3335. Referring to Figure 9, the second moving mechanism 340 may further include a sliding rod 345 and a compressible elastic member 346. The transmission nut 343 is provided with a sliding groove. The sliding rod 345 is positioned along the optical axis of the second camera 333 and slides within the sliding groove. The first end of the sliding rod 345 extending from the sliding groove is provided with an abutment 3451, which abuts the transmission nut 343. The second end of the sliding rod 345 is fixedly connected to the base 3331. For example, the base 3331 of the second camera 333 may be provided with a second connecting hole 3332, into which the second end of the sliding rod 345 can be inserted. The compressible elastic member 346 is sleeved onto the sliding rod 345, with the first end of the compressible elastic member 346 abutting the transmission nut 343 and the second end of the compressible elastic member 346 abutting the base 3331. Exemplarily, the compression elastic member 346 may be a compression spring.

[0093] The compression elastic member 346 is always in a compressed state, and the compression elastic member 346 applies thrust to the transmission nut 343 and the base 3331 respectively, so that the internal thread of the transmission nut 343 is always in contact with the thread groove wall of the transmission screw 342 away from the base 3331, and the abutment portion 3451 of the sliding rod 345 is in contact with the transmission nut 343.

[0094] When the drive motor 344 is activated, it drives the transmission screw 342 to rotate. The wall of the thread groove of the transmission screw 342 away from the base 3331 pushes the transmission nut 343, causing the transmission nut 343 to move toward the light-transmitting window 121. The transmission nut 343 pushes the abutment portion 3451, causing the sliding rod 345 to move the base 3331 and the second image sensor toward the second optical lens assembly.

[0095] When the drive motor 344 is reversed, it drives the transmission screw 342 to rotate in the opposite direction. The wall of the thread groove of the transmission screw 342 that is away from the base 3331 pushes the transmission nut 343, causing the transmission nut 343 to move away from the light-transmitting window 121. The transmission nut 343 slides relative to the sliding rod 345 to compress the compression elastic member 346. The compression elastic member 346 applies a thrust to the transmission nut 343 and the base 3331, causing the internal thread of the transmission nut 343 to always fit against the wall of the thread groove of the transmission screw 342 that is away from the base 3331. This also causes the abutment 3451 of the sliding rod 345 to abut against the transmission nut 343, thereby causing the sliding rod 345, the base 3331, and the second image sensor to follow the transmission nut 343 in moving away from the second optical lens assembly.

[0096] During the process of the transmission nut 343 moving relative to the transmission screw 342 toward the light-transmitting window 121, and during the process of the transmission nut 343 moving relative to the transmission screw 342 in the direction away from the light-transmitting window 121, the working surfaces of the transmission nut 343 and the transmission screw 342 always maintain one-sided contact, thereby avoiding the transmission screw 342 from returning due to the gap between the external thread of the transmission screw 342 and the internal thread of the transmission nut when the transmission screw 342 changes its rotation direction, thereby improving the transmission accuracy between the transmission screw 342 and the transmission nut 343, and further improving the adjustment accuracy when adjusting the displacement of the second image sensor 3335.

[0097] The second moving mechanism 340 may further include a guide rod 347, through which the drive nut 343 can be slidably connected to the second mounting bracket 341. Referring to Figure 9, the guide rod 347 can be positioned along the optical axis of the second camera 333, with both ends of the guide rod 347 connected to the second mounting bracket 341. For example, the ends of the guide rod 347 can be fixedly connected to the two mounting plates 3412, respectively. The drive nut 343 is provided with a sliding through-hole 3431, which is sleeved on the guide rod 347. The guide rod 347 can guide the drive nut 343 along the optical axis of the second camera 333, thereby improving the movement accuracy of the drive nut 343 and thus improving the position adjustment accuracy of the second camera 333.

[0098] Referring to Figure 10 , the second moving mechanism 340 may further include a first travel switch and a second travel switch 348 spaced apart along the optical axis of the second camera 333. Both the first and second travel switches 348 are connected to the housing 100. For example, the first travel switch is connected to the first mounting bracket 335. The second travel switch 348 is connected to the first mounting bracket 335 via a connecting bracket 349, and the second travel switch 348 is disposed opposite the first travel switch. Both the first and second travel switches 348 are electrically connected to the second mainboard 310. An indicator ring 3333 is connected to the second image sensor 3335. For example, the indicator ring 3333 may be connected to the base 3331 and have an indicator protrusion 3334 located between the first and second travel switches 348.

[0099] When the second image sensor 3335 moves, it drives the indicator ring 3333 to move. When the indicator protrusion 3334 of the indicator ring 3333 contacts the first travel switch, the second image sensor 3335 has moved to the first position. When the indicator protrusion 3334 of the indicator ring 3333 contacts the second travel switch 348, the second image sensor 3335 has moved to the second position. The first and second travel switches 348 transmit trigger signals to the second mainboard 310, allowing the second mainboard 310 to detect the position of the second image sensor 3335. The second mainboard 310 controls the drive motor based on the position of the second image sensor 3335, thereby automatically controlling the position of the second image sensor 3335 and achieving autofocus for the second camera 333.

[0100] The inspection device 10 may further include a distance measurement system electrically connected to the second mainboard 310 to measure the distance to the second position. The distance measurement system may be located within the accommodating cavity and connected to the housing 100. The distance measurement system faces the light-transmitting window 121 and is configured to measure the distance to the second position through the light-transmitting window 121. In some possible implementations of the embodiments of the present application, the first camera 332 and the second camera 333 may be adjusted based on the distance to the second position measured by the distance measurement system to achieve an automatic focus function.

[0101] For example, referring to FIG8 , the ranging system may include a laser ranging sensor 400 or an infrared distance sensor. Taking the laser ranging sensor 400 as an example, the laser ranging sensor 400 can be mounted on the side of the steering prism 334 facing the light-transmitting window 121 and electrically connected to the second mainboard 310 via an FFC or a harness. The laser ranging sensor 400 can emit a laser beam through the light-transmitting window 121 toward a second location and receive the laser beam reflected by the second location, thereby measuring the distance to the second location.

[0102] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. An inspection device, characterized in that: include: A housing having a receiving cavity; an inspection system, located in the accommodating cavity and connected to the housing, the inspection system being configured to be electrically connected to the endoscope when the inspection device is installed in the endoscope, so as to process the image of the first position acquired by the endoscope; The image acquisition system is located in the accommodating cavity and connected to the shell. The image acquisition system is configured to acquire an image of the second position, or acquire and process an image of the second position.

2. The inspection device according to claim 1, characterized in that: A first connection window is provided at a first end of the housing, and the first end is configured to dock with the endoscope; The inspection system has a first connection terminal, which is exposed by the first connection window. When the inspection device is installed in the endoscope, the first connection terminal is electrically connected to the endoscope.

3. The inspection device according to claim 2, characterized in that: The inspection system comprises a first main board, a first connection circuit board and a second connection circuit board, wherein the first main board is connected to the housing; The first connecting circuit board is connected to the housing and is close to the first end of the housing. The first connecting circuit board is electrically connected to the first main board. The first connecting circuit board has the first connecting terminal. The second connection circuit board is connected to the housing and is close to the second end of the housing. The second connection circuit board is electrically connected to the first main board. The second connection circuit board has a second connection terminal, and the second connection terminal is used to electrically connect to an external device. The second end of the housing is provided with a second connection window, and the second connection window exposes the second connection terminal. The first end of the shell and the second end of the shell are respectively two opposite ends in the extension direction of the shell.

4. The inspection device according to claim 3, characterized in that: The side wall of the housing is provided with a key window; The inspection system further includes a key assembly electrically connected to the first mainboard, and a portion of the key assembly extends out of the key window.

5. The inspection device according to claim 3, characterized in that: The second end of the housing is also provided with a third connecting window; The second connection circuit board is also provided with a third connection terminal, the third connection terminal is exposed from the third connection window, and the third connection terminal is used for electrically connecting to the surgical instrument.

6. The inspection device according to claim 2, characterized in that: A light-transmitting window is provided at the first end of the housing, and the light-transmitting window is spaced apart from the first connecting window; The image acquisition system comprises a second mainboard, a light source assembly and an image acquisition assembly, wherein the second mainboard is connected to the housing; The light emitting side of the light source assembly faces the light-transmitting window and is electrically connected to the second main board; The image acquisition component is electrically connected to the second main board, and the image acquisition component has a first light incident surface, which is opposite to the light-transmitting window and is used to receive external light.

7. The inspection device according to claim 6, characterized in that: A fourth connection terminal is disposed on one side of the second mainboard facing the second end of the housing, and the fourth connection terminal is used for electrical connection with an external device.

8. The inspection device according to claim 6, characterized in that: The light source assembly includes a light source circuit board and a plurality of light emitting devices, the light source circuit board is connected to the housing and is electrically connected to the second main board, the light source circuit board has an avoidance hole, and the avoidance hole surrounds at least a portion of the first light incident surface; A plurality of the light emitting devices are arranged on the light source circuit board.

9. The inspection device according to claim 8, characterized in that: The light emitted by the plurality of light emitting devices includes at least one of white light, green light, purple light, infrared light and ultraviolet light.

10. The inspection device according to claim 9, characterized in that: The spectrum range of white light emitted by the plurality of light emitting devices is 420 to 680 nm; Or, the central wavelength of the green light emitted by the plurality of light emitting devices is 540 nm; Or, the central wavelength of the purple light emitted by the plurality of light emitting devices is 415 nm; Or, the central wavelength of the infrared light emitted by the plurality of light emitting devices is 780 nm; Alternatively, the central wavelength of the ultraviolet light emitted by the plurality of light-emitting devices is 340 nm.

11. The inspection device according to claim 6, characterized in that: The image acquisition component includes a beam splitter prism, a first camera and a second camera, the beam splitter prism has the first light incident surface; external light enters the beam splitter prism through the first light incident surface and is divided into a first light path and a second light path that are perpendicular to each other; The first camera is located on the first optical path, and the first camera is used to form an image with a first magnification; The second camera is located on the second optical path, and is used to form an image with a second magnification, where the second magnification is greater than the first magnification.

12. The inspection device according to claim 11, characterized in that: The focal length of the second camera is greater than the focal length of the first camera; And / or, the field of view of the second camera is smaller than the field of view of the first camera.

13. The inspection device according to claim 11, characterized in that: Along the extension direction of the first optical path, the first camera includes a first optical lens group, a first dual-bandpass filter and a first image sensor in sequence.

14. The inspection device according to claim 13, characterized in that: The first dual-bandpass filter has a first filtering wavelength range and a second filtering wavelength range, the first filtering wavelength range is 400-680 nm, and the second filtering wavelength range is 810-830 nm.

15. The inspection device according to claim 11, characterized in that: The image acquisition system further includes a first moving mechanism, which is installed in the housing and connected to the first camera to drive the first camera to move along the first optical path.

16. The inspection device according to claim 15, characterized in that: The first moving mechanism includes a voice coil motor.

17. The inspection device according to claim 11, characterized in that: Along the extension direction of the second optical path, the second camera includes a second optical lens group, a second dual-bandpass filter and a second image sensor in sequence.

18. The inspection device according to claim 17, characterized in that: The second dual-bandpass filter has a third filtering wavelength range and a fourth filtering wavelength range, the third filtering wavelength range is 400-680 nm, and the fourth filtering wavelength range is 810-830 nm.

19. The inspection device according to claim 17, characterized in that: The second image sensor is slidable relative to the housing along the second optical path; The image acquisition system further includes a second moving mechanism, which is installed in the housing and connected to the second image sensor to drive the second image sensor to move along the second optical path.

20. The inspection device according to claim 19, characterized in that The second moving mechanism comprises a second mounting frame, a transmission screw, a transmission nut and a driving motor, and the second mounting frame is connected to the housing; The transmission screw is arranged along the optical axis of the second camera, and both ends of the transmission screw are rotatably connected to the second mounting frame, and the transmission screw is connected to the driving motor; The transmission nut is sleeved on the transmission lead screw and is slidably connected to the second mounting bracket along the optical axis of the second camera. The transmission nut is connected to a base connected to the second image sensor.

21. The inspection device according to claim 20, characterized in that: The transmission nut is provided with a sliding groove; The second moving mechanism also includes a sliding rod and a compression elastic member. The sliding rod is arranged along the optical axis of the second camera. The sliding rod is slidably arranged in the sliding groove. The first end of the sliding rod extending out of the sliding groove is provided with an abutment portion, the abutment portion abuts against the transmission nut, and the second end of the sliding rod is fixedly connected to the base; the compression elastic member is sleeved on the sliding rod, the first end of the compression elastic member abuts against the transmission nut, and the second end of the compression elastic member abuts against the base.

22. The inspection device according to claim 20, characterized in that The second moving mechanism further includes a guide rod, which is arranged along the optical axis of the second camera, and both ends of the guide rod are connected to the second mounting bracket; The transmission nut is provided with a sliding through hole, and the sliding through hole is sleeved on the guide rod.

23. The inspection device according to claim 19, characterized in that The second moving mechanism further includes a first travel switch and a second travel switch spaced apart along the optical axis direction of the second camera, wherein the first travel switch and the second travel switch are both connected to the housing and electrically connected to the second mainboard; The second image sensor is connected to an indicator ring, the indicator ring has an indicator protrusion, and the indicator protrusion is located between the first travel switch and the second travel switch.

24. The inspection device according to claim 11, characterized in that The image acquisition assembly further includes a turning prism located on the second optical path and between the beam splitting prism and the second camera.

25. The inspection device according to claim 24, characterized in that The image acquisition assembly further includes a first mounting frame connected to the housing; The beam splitter prism, the steering prism, the first camera and the second camera are all mounted on the first mounting frame.

26. The inspection device according to claim 6, characterized in that The light-transmitting window is provided with a light-transmitting protective sheet, and a light-absorbing layer is provided on an edge of the light-transmitting protective sheet on a side facing the light source assembly.

27. The inspection device according to claim 6, characterized in that: The housing is provided with an indicator light hole; The inspection system and / or the image acquisition system is provided with a status indicator light and a light guide column, wherein the status indicator light is used to indicate the working status of the inspection system and / or the image acquisition system; the light guide column is installed in the indicator light hole and connected to the indicator light.

28. The inspection device according to claim 6, characterized in that A first outer end surface of the shell provided with the first connecting window has a first angle with a second outer end surface of the shell provided with the light-transmitting window, and the first angle is less than 180°.

29. The inspection device according to claim 6, characterized in that A second angle is formed between a reverse extension surface of a second outer end surface of the shell having the light-transmitting window and an extension direction of an outer surface of the shell, and the second angle is greater than or equal to 10° and less than or equal to 45°.

30. The inspection device according to any one of claims 6 to 29, characterized in that: The inspection device also includes a distance measuring system, which is located in the accommodating cavity and connected to the shell. The distance measuring system faces the light-transmitting window. The distance measuring system is electrically connected to the second main board, and the distance measuring system is configured to measure the distance of the second position through the light-transmitting window.

31. The inspection device according to claim 30, characterized in that The distance measuring system includes a laser distance measuring sensor.

32. An endoscopy device, characterized in that: Comprising an inspection device as described in any one of claims 1-31.

33. The endoscopic inspection device according to claim 32, characterized in that An endoscope is also included, and the inspection device is installed in the endoscope and is electrically connected to the endoscope.

34. The endoscopic inspection apparatus according to claim 32, characterized in that Also included is a dilator, in which the inspection device is installed.

Images