Examination device and endoscopic examination equipment

Abstract

The embodiment of the invention relates to an examination device and endoscopic examination equipment, belongs to the technical field of medical instruments, and aims to solve the problem that an examination device in the prior art is large in size. The inspection device comprises a shell, a main board, a key assembly and an image acquisition system, the shell is provided with an accommodating cavity; the mainboard is positioned in the accommodating cavity and is connected with the shell; part of the key assembly is located in the containing cavity and located on one side of the main board, and the key assembly is electrically connected with the main board; the image obtaining system is located in the containing cavity and comprises a functional circuit board, and the functional circuit board is located on the side, away from the key assembly, of the mainboard. According to the inspection device, the area of the main board can be reduced, so that the size of the inspection device is reduced, the size of the endoscopic inspection equipment is reduced, and the endoscopic inspection equipment is convenient to carry.

Description

Technical Field

[0001] The embodiments of the present application belong to the technical field of medical devices, and in particular, relate to an inspection device and an endoscopic inspection equipment. Background Art

[0002] In the field of medical technology, endoscopic inspection equipment is commonly used to inspect human cavities, such as the ear, nose, throat, oral cavity, abdominal cavity, uterine cavity or vagina. Endoscopic inspection equipment generally includes an inspection device for acquiring or processing images of human cavities, etc. However, the inspection device in the related art is relatively large, which results in a relatively large volume of the endoscopic inspection equipment, which is not convenient to carry. Summary of the invention

[0003] In view of this, an embodiment of the present application provides an inspection device and an endoscopic inspection equipment to solve the technical problem of the large size of the inspection device.

[0004] A first aspect of an embodiment of the present application provides an inspection device, comprising a shell, a main board, a button assembly and an image acquisition system; the shell has a accommodating cavity; the main board is located in the accommodating cavity and is connected to the shell; part of the button assembly is located in the accommodating cavity and on one side of the main board, and the button assembly is electrically connected to the main board; the image acquisition system is located in the accommodating cavity, and the image acquisition system includes a functional circuit board, and the functional circuit board is located on the side of the main board away from the button assembly.

[0005] In the inspection device of the embodiment of the present application, the button assembly is located on one side of the main board, and the functional circuit board of the image acquisition system is located on the side of the main board away from the button assembly. That is to say, the button assembly and the functional circuit board are respectively arranged on both sides of the main board. Compared with the related art in which the button assembly and the functional circuit board are arranged on the same side of the main board, the area of ​​the main board can be reduced, thereby reducing the volume of the inspection device, and further reducing the volume of the endoscopic inspection equipment, making the endoscopic inspection equipment easy to carry.

[0006] In an implementation that may include any one of the above embodiments, the mainboard is formed with a key function circuit and an image function circuit, the key function circuit has a first connecting pad for electrically connecting to the key assembly; the image function circuit has a second connecting pad electrically connected to the functional circuit board; the mainboard has a first surface and a second surface relative to each other, the first connecting pad is arranged on the first surface, and the second connecting pad is arranged on the second surface.

[0007] In an implementation that may include any one of the above embodiments, a key window is provided on the side of the shell, the key window is opposite to the key assembly, and a portion of the key assembly extends out of the key window.

[0008] In an implementation that may include any one of the above embodiments, the key assembly includes a key pressure plate, a key board and at least one key switch, the key switch is welded to the side of the main board facing the key window; the key pressure plate is located on the side of the main board facing the key window, and is connected to the main board and the shell, the key pressure plate is provided with at least one key through hole, and the key through hole is sleeved on the key switch; the key board is located on the side of the key pressure plate facing the key window, the key board includes a key part and a limiting part, the key part is opposite to the key switch, part of the key part extends out of the key window, a key groove is provided on the side of the key part facing the key switch, and the key groove covers the key switch; the limiting part is connected to the edge of the key part, and is located between the key pressure plate and the shell.

[0009] In an implementation that may include any one of the above-mentioned embodiments, the shell has a first end that is docked with an endoscope, and the first end of the shell is provided with a light-transmitting window; the image acquisition system also includes a mounting frame, a light source assembly and an image acquisition assembly, the mounting frame is located between the functional circuit board and the light-transmitting window, and is connected to the shell; the light source assembly is connected to the mounting frame and is electrically connected to the main board, and the light source assembly is configured to emit light to the outside of the shell through the light-transmitting window; the image acquisition assembly is installed on the mounting frame and is electrically connected to the functional circuit board, and the image acquisition assembly is configured to acquire an image of the outside of the shell through the light-transmitting window.

[0010] In an implementation that may include any one of the above-mentioned embodiments, the mounting frame has a first mounting surface opposite to the light-transmitting window; the light source assembly includes a light source circuit board and at least one light-emitting device, the light source circuit board is connected to the first mounting surface and is electrically connected to the functional circuit board; at least one of the light-emitting devices is connected to a side of the light source circuit board facing away from the first mounting surface.

[0011] In an implementation that may include any one of the above embodiments, the image acquisition component has a first light incident surface, and the light source circuit board surrounds at least a portion of the first light incident surface.

[0012] In an implementation that may include any one of the above embodiments, the image acquisition component includes a dichroic prism, a first camera, and a second camera, the dichroic prism having a first light incident surface opposite to the light-transmitting window, and light outside the shell enters the dichroic prism from the first light incident surface through the light-transmitting window, and is divided into a first light path and a second light path that are independent of each other; the first camera is located on the first light path, and the first camera is used to form an image with a first magnification; the second camera is located on the second light path, and the second camera is used to form an image with a second magnification, and the second magnification is greater than the first magnification.

[0013] In an implementation that may include any one of the above embodiments, the image acquisition component further includes a steering prism, wherein the steering prism is located on the second optical path and between the beam splitting prism and the second camera.

[0014] In an implementation that may include any one of the above embodiments, the mounting frame is provided with a prism mounting groove, and a notch of the prism mounting groove is opposite to the light-transmitting window.

[0015] In an implementation that may include any one of the above-mentioned embodiments, the prism mounting groove has a plurality of groove walls adjacent to each other in sequence, and an avoidance groove is arranged between each two adjacent groove walls; the side surfaces of the beam splitter prism and / or the steering prism are in contact with the groove walls of the prism mounting groove, and the edges of the beam splitter prism and / or the steering prism are located in the avoidance groove.

[0016] In an implementation that may include any one of the above embodiments, the mounting frame is further provided with at least one adjustment through hole, and at least one of the adjustment through holes penetrates through the prism mounting groove.

[0017] In an implementation that may include any one of the above-mentioned embodiments, the prism mounting groove includes a first sub-groove and a second sub-groove that are connected to each other, the first sub-groove accommodating the beam splitter prism, the second sub-groove accommodating the steering prism, an isolation portion is provided between the first sub-groove and the second sub-groove, and the isolation portion is located between the beam splitter prism and the steering prism; along the depth direction of the first sub-groove, the height of the isolation portion is less than the depth of the first sub-groove; along the depth direction of the second sub-groove, the height of the isolation portion is less than the depth of the second sub-groove.

[0018] In an implementation that may include any one of the above embodiments, the mounting frame is also provided with a camera mounting groove for mounting the first camera, the camera mounting groove is arranged back to back with the first sub-groove, and the first sub-groove is connected to the camera mounting groove through a first light hole.

[0019] In an implementation that may include any one of the above embodiments, the mounting frame is also provided with a mounting tube for connecting the second camera, the mounting tube is arranged back to back with the second sub-groove, and the second sub-groove is connected to the mounting tube through a second light-through hole.

[0020] In an implementation that may include any one of the above-mentioned embodiments, a first positioning portion is provided on the inner side of the first end of the shell, and the first positioning portion has a first positioning surface; a second positioning portion is provided on the side of the mounting frame facing the first end of the shell, and the second positioning portion is provided with a second positioning surface facing the shell, and the second positioning surface is in contact with the first positioning surface.

[0021] In an implementation that may include any one of the above embodiments, both the first positioning surface and the second positioning surface are step surfaces.

[0022] In an implementation that may include any one of the above-mentioned embodiments, the inner side wall of the shell is provided with a third positioning portion and a second connecting portion, the third positioning portion having a third positioning surface; the second connecting portion is provided with a threaded hole; the mounting frame is further provided with at least one connecting arm, the connecting arm includes a fourth positioning portion and a fourth connecting portion connected to each other, the fourth positioning portion has a fourth positioning surface facing the side of the shell, the fourth positioning surface is in contact with the third positioning surface; the fourth connecting portion is provided with a connecting through hole, and the connecting through hole is opposite to the threaded hole.

[0023] In an implementation that may include any one of the above embodiments, the shell includes a first shell and a second shell that are detachably connected, and the first shell and the second shell are arranged to enclose the accommodating cavity.

[0024] In an implementation that may include any one of the above-mentioned embodiments, a first connecting groove is provided on a side of one of the first shell and the second shell facing the other; and a first connecting protrusion is provided on the other of the first shell and the second shell, and the first connecting protrusion is inserted into the first connecting groove.

[0025] In an implementation that may include any one of the above embodiments, the housing further includes a sealing member, wherein the sealing member is located in the first connecting groove and between the first connecting groove and the first connecting protrusion.

[0026] In an implementation that may include any one of the above-mentioned embodiments, a second connecting groove is provided on one of the second ends of the first shell and the second ends of the second shell facing the other; a second connecting protrusion is provided on the other of the second ends of the first shell and the second ends of the second shell, and the second connecting protrusion is inserted into the second connecting groove; wherein the second end of the first shell and the second end of the second shell both face away from the endoscope or the dilator.

[0027] A second aspect of an embodiment of the present application provides an endoscopic inspection device, comprising an inspection device as described in any one of the above items.

[0028] Since the endoscopic inspection device of the embodiment of the present application includes any one of the above-mentioned inspection devices, the endoscopic inspection device also has the advantages of any one of the above-mentioned inspection devices, which will not be repeated here.

[0029] In an implementation that may include any one of the above embodiments, an endoscope is also included, and the inspection device is installed in the endoscope and is electrically connected to the endoscope.

[0030] In an implementation that may include any one of the above embodiments, a dilator is also included, and the inspection device is installed in the dilator. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0032] Figure 1 A schematic diagram of the three-dimensional structure of an endoscopic inspection device according to an embodiment of the present application;

[0033] Figure 2 Schematic diagram of the three-dimensional structure of an endoscopic inspection device in some possible implementations of the embodiments of the present application;

[0034] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the inspection device;

[0035] Figure 4 Schematic diagram of the three-dimensional structure of the inspection device in some possible implementations of the embodiments of the present application;

[0036] Figure 5 for Figure 4 A schematic diagram of a first perspective three-dimensional structure of the first shell;

[0037] Figure 6 for Figure 4 A schematic diagram of the stereoscopic structure of the first shell from a second viewing angle;

[0038] Figure 7 for Figure 4 A schematic diagram of the third perspective stereoscopic structure of the second shell;

[0039] Figure 8 for Figure 4 A schematic diagram of the third perspective structure of the second shell in the fourth perspective;

[0040] Fig. 9 for Figure 4 A schematic diagram of the three-dimensional structure of the inspection device when the housing is hidden;

[0041] Fig.10 for Fig. 9 A schematic diagram of the structure from the side when the central inspection device hides the mounting frame;

[0042] Fig.11 for Fig. 9 Schematic diagram of the structure of the image acquisition component;

[0043] Fig.12 for Fig.11 Schematic diagram of the optical path of the image acquisition component;

[0044] Fig.13 for Fig. 9 A schematic diagram of the fifth perspective stereoscopic structure of the middle mounting frame;

[0045] Fig.14 for Fig. 9 A schematic diagram of the sixth perspective stereoscopic structure of the middle mounting frame;

[0046] Fig.15 for Fig. 9 A schematic diagram of the third perspective structure of the middle mounting frame;

[0047] Fig.16 for Figure 4 Schematic diagram of the explosion structure of the inspection device.

[0048] Reference numerals

[0049] 10-Inspection device;

[0050] 100-housing;

[0051] 110-first housing; 111-first connecting portion;

[0052] 112-key window; 113-first positioning portion;

[0053] 1131-first positioning surface; 114-third positioning portion;

[0054] 1141-third positioning surface; 115-second connecting portion;

[0055] 116-first connection window; 117-third connection portion;

[0056] 118-second connecting window; 120-second housing;

[0057] 121-light-transmitting window; 122-light-transmitting protective sheet;

[0058] 130 - first connecting groove; 140 - first connecting protrusion;

[0059] 150 - second connecting groove; 160 - second connecting protrusion;

[0060] 170-connecting tube;

[0061] 200- Mainboard;

[0062] 210-first surface; 220-second surface;

[0063] 230-first connecting circuit board; 231-first connecting terminal;

[0064] 240 - a second connecting circuit board; 241 - a second connecting terminal;

[0065] 300-button assembly;

[0066] 310-button switch; 320-button pressure plate;

[0067] 330-keyboard; 340-key through hole;

[0068] 350-button part; 360-limit part;

[0069] 370-key groove;

[0070] 400- Image acquisition system;

[0071] 410-functional circuit board; 411-third connecting terminal;

[0072] 412-isolation column; 420-light source assembly;

[0073] 421-light source circuit board; 422-light emitting device;

[0074] 430-image acquisition component; 431-beam splitter prism;

[0075] 4311-first light incident surface; 4312-light splitting surface;

[0076] 4313-first light exit surface; 4314-second light exit surface;

[0077] 432-first camera; 433-second camera;

[0078] 434-turning prism; 4341-second light incident surface;

[0079] 4342-first light reflecting surface; 4343-second light reflecting surface;

[0080] 4344-third light emitting surface; 440-mounting frame;

[0081] 441-first mounting surface; 442-prism mounting groove;

[0082] 4421-avoidance slot; 4422-first sub-slot;

[0083] 4423 - second sub-groove; 4424 - isolation portion;

[0084] 4425-adjustment through hole; 4426-first light through hole;

[0085] 4427-second light hole; 443-camera mounting slot;

[0086] 444-installation cylinder; 445-second positioning portion;

[0087] 4451-second positioning surface; 446-connecting arm;

[0088] 4461- fourth positioning portion; 4462- fourth connecting portion;

[0089] 4463- fourth positioning surface; 4464- connecting through hole;

[0090] 500-distance sensor;

[0091] 20-endoscope;

[0092] 600-first operating handle; 610-mirror tube;

[0093] 30-dilator;

[0094] 700-second operating handle; 710-lower leaf;

[0095] 720-upper leaf. DETAILED DESCRIPTION

[0096] In view of the technical problem in the related art that the inspection device is large in size, which leads to the large size of the endoscopic inspection equipment and is inconvenient to carry, the inventors have studied and found that the reason is that: the inspection device usually includes a shell, and a main board, an image acquisition system and a button assembly located in the shell, and the image acquisition system includes a functional circuit board. The functional circuit board and the button assembly are usually arranged on the same side of the main board and are electrically connected to the main board, which increases the area of ​​the main board and thus increases the size of the inspection device, making the endoscopic inspection equipment large and inconvenient to carry.

[0097] In view of this, the inspection device of the embodiment of the present application arranges the functional circuit board and the button assembly on both sides of the main board respectively to reduce the area of ​​the main board, thereby reducing the volume of the inspection device, and further reducing the volume of the endoscopic inspection equipment, making the endoscopic inspection equipment easy to carry.

[0098] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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.

[0099] An embodiment of the present application provides an endoscopic inspection device, which includes an inspection device.

[0100] The endoscopic examination device can examine and / or treat the first preset position. Figure 1 For example, the endoscopic inspection device may further include an endoscope 20, and the inspection device 10 may be installed in the endoscope 20 and electrically connected to the endoscope 20 to inspect and treat the first preset position. The first preset position may be a human body cavity such as a uterine cavity, a nasal cavity, and an abdominal cavity.

[0101] The endoscope 20 refers to a visual medical device used to inspect and / or treat a human cavity. For example, the endoscope 20 may be a hysteroscope, a nasal cavity scope, or a laparoscope. Figure 1 The endoscope 20 may include a first operating handle 600, a mirror tube 610, and an endoscope circuit board. 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 inserted into the first accommodating cavity, or can be screwed into the first accommodating cavity. The inspection device 10 is electrically connected to the endoscope circuit board.

[0102] When inspecting and treating the first preset position, the mirror tube 610 can be inserted into the first preset position. The mirror tube 610 can obtain an image of the first preset position and transmit the image to the inspection device 10 through the endoscope circuit board, thereby inspecting and / or treating the first preset position.

[0103] The endoscopic inspection device can also inspect and / or treat the second preset position. The second preset position can be an open human cavity such as the oral cavity, or an exposed human surface such as the skin. Exemplarily, when inspecting and / or treating the oral cavity, the inspection device 10 can be inserted into the open oral cavity, and the inspection device 10 can acquire and process images in the oral cavity, thereby inspecting the oral cavity. When inspecting the skin, the inspection device 10 can be placed opposite to the skin, thereby inspecting and / or treating the skin.

[0104] The second preset position may also be a human cavity with a closed opening, such as a vagina. Figure 2 In some possible implementations of the embodiments of the present application, the endoscopic inspection device may also include a dilator 30, and the inspection device 10 may be installed in the dilator 30. For example, the inspection device 10 may be inserted into the dilator 30, or may be screwed into the dilator 30.

[0105] The dilator 30 refers to a device that can be inserted into a human cavity with a closed opening, such as the vagina, to expand the space of the human cavity, thereby facilitating the inspection of the human cavity. Figure 2 , the expander 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 the top of the second operating handle 700 also has a visual window. The lower leaf 710 is located below the visual window and is connected to the second operating handle 700. The upper leaf 720 is located above the visual window and is 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 opened, the visual window is exposed. When the upper leaf 720 and the lower leaf 710 are closed, the visual window is blocked. The inspection device 10 can be installed in 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 chamber or can be screwed into the second accommodating chamber.

[0106] When inspecting the second preset position, such as the vagina or other human body cavity, the upper leaf 720 can be controlled to rotate relative to the second operating handle 700, so as to close with the lower leaf 710. The closed upper leaf 720 and the lower leaf 710 are inserted into the second preset position, and then the upper leaf 720 is controlled to rotate in the opposite direction relative to the second operating handle 700, so as to open with the lower leaf 710 to expose the visual window and expand the space of the second preset position. The inspection device 10 can obtain an image of the second preset position through the exposed visual window, so as to inspect the second preset position.

[0107] The inspection device 10 of the embodiment of the present application can inspect and / or treat the first preset position as well as the second preset position, thereby expanding the scope of application of the inspection device 10. When performing multiple inspections and / or treatments of human cavities such as the ears, 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.

[0108] For example, in the process of gynecological diagnosis and treatment, the inspection device 10 of the embodiment of the present application can be installed in a hysteroscope, so that the inspection device 10 is electrically connected to the hysteroscope to form a uterine cavity inspection device with the hysteroscope. The inspection device 10 of the embodiment of the present application can process the image of the uterine cavity obtained by the hysteroscope, so as to inspect the uterine cavity. In addition, the inspection device 10 of the embodiment of the present application can also be installed in the dilator 30 to form a vaginal inspection device with the dilator 30. The inspection device 10 of the embodiment of the present application cooperates with the dilator 30 to obtain images in the vagina, so as to inspect the vagina. In this way, the number of parts of various endoscopic inspection equipment used in the gynecological diagnosis and treatment process 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.

[0109] refer to Figure 3 The inspection device 10 may include a housing 100, a mainboard 200, a key assembly 300, and an image acquisition system 400. The housing 100 has a receiving cavity. The mainboard 200 is located in the receiving cavity and connected to the housing 100. A portion of the key assembly 300 is located in the receiving cavity and is located on one side of the mainboard 200, and the key assembly 300 is electrically connected to the mainboard 200. The image acquisition system 400 is located in the receiving cavity, and the image acquisition system 400 includes a functional circuit board 410, which is located on the side of the mainboard 200 away from the key assembly 300.

[0110] In the inspection device 10 of the embodiment of the present application, the button assembly 300 is located on one side of the main board 200, and the functional circuit board 410 of the image acquisition system 400 is located on the side of the main board 200 away from the button assembly 300. That is, the button assembly 300 and the functional circuit board 410 are respectively arranged on both sides of the main board 200. Compared with the related art in which the button assembly and the functional circuit board are arranged on the same side of the main board, the area of ​​the main board can be reduced, thereby reducing the volume of the inspection device 10, and further reducing the volume of the endoscopic inspection equipment, making the endoscopic inspection equipment easy to carry.

[0111] refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The housing 100 is used to accommodate other components of the inspection device 10. Exemplarily, the housing 100 may include a first housing 110 and a second housing 120 that are detachably connected, and the first housing 110 and the second housing 120 are arranged to form a receiving cavity. In other words, the housing 100 is a split structure. Such a configuration can facilitate the installation of other components of the inspection device 10 in the housing 100, thereby improving the convenience of assembling and adjusting the inspection device 10.

[0112] The first shell 110 and the second shell 120 may both be semi-cylindrical structures, and the two semi-cylindrical structures may be interlocked to form a shell 100 having a receiving cavity.

[0113] For example, reference Figure 5 and Figure 6 The inner side wall of the first housing 110 may be provided with a first connecting portion 111, and the first connecting portion 111 is used to connect the key assembly 300. Exemplarily, the first connecting portion 111 may be a columnar structure, and the first connecting portion 111 may be provided with a threaded hole.

[0114] A key window 112 is also provided on the side of the first shell 110, and the key window 112 is opposite to the key assembly 300. Part of the key assembly 300 extends out of the key window 112, so that the operator can perform key operations on the key assembly 300 outside the first shell 110, thereby improving the convenience of operating the key assembly 300.

[0115] There may be multiple key windows 112, and multiple key windows 112 may be arranged at intervals on the side of the first housing 110. Parts of the key components 300 may extend from the multiple key windows 112, respectively, to divide the key components 300 into different key operation areas. Exemplarily, pressing different key operation areas may realize different functions of the inspection device 10. Such a setting can prevent the operator from mistakenly triggering other functions when pressing the key component 300 to realize a specific function, thereby improving the convenience of operating the inspection device 10.

[0116] There may be multiple first connection parts 111 , and the multiple first connection parts 111 may be arranged around the key window 112 to fix the key assembly 300 at multiple points, thereby improving the connection strength between the key assembly 300 and the housing 100 .

[0117] A first positioning portion 113 may also be provided in the first housing 110 , and the first positioning portion 113 is used to position the image acquisition system 400 .

[0118] A third positioning portion 114 may also be provided in the first housing 110 , and the third positioning portion 114 is used to position the image acquisition system 400 .

[0119] A second connection portion 115 may also be provided in the first housing 110, and the second connection portion 115 is used to connect the image acquisition system 400. Exemplarily, the second connection portion 115 may be a columnar structure, and the second connection portion 115 may be provided with a threaded hole. There may be multiple second connection portions 115, and multiple second connection portions 115 may be arranged at intervals to fix the image acquisition system 400 at multiple points, thereby improving the connection strength between the image acquisition system 400 and the housing 100.

[0120] For example, reference Figure 7 and Figure 8 The first end of the second housing 120 may be provided with a light-transmitting window 121, and external light may enter the accommodating cavity through the second housing 120. The image acquisition system 400 may acquire an image outside the housing 100 through the light-transmitting window 121.

[0121] Exemplarily, the light-transmitting window 121 is provided with a light-transmitting protective sheet 122, which can protect the image acquisition system 400 to prevent the image acquisition system 400 from being contaminated by impurities such as liquids and particles. The protective sheet 122 may also be provided with an anti-reflection film layer to increase the amount of light entering the image acquisition system 400, thereby improving the image quality acquired by the image acquisition system 400. The side of the protective sheet 122 facing away from the accommodating cavity may also be provided with a hydrophobic coating to prevent liquids and the like from adhering to the light-transmitting protective sheet 122 and reducing the image quality acquired by the image acquisition system 400.

[0122] For example, a first connection groove 130 may be provided on one side of the first shell 110 and the second shell 120 facing the other. A first connection protrusion 140 may be provided on the other side of the first shell 110 and the second shell 120. Figures 5 to 8 As shown, the first connection protrusion 140 is disposed on the side of the first shell 110 facing the second shell 120. The first connection groove 130 is disposed on the side of the second shell 120 facing the first shell 110. The first connection protrusion 140 is inserted into the first connection groove 130. The first shell 110 and the second shell 120 are detachably connected by the first connection protrusion 140 and the first connection groove 130 that are inserted into each other.

[0123] In some possible implementations of the embodiment of the present application, the housing 100 may further include a sealing member, which is located in the first connection groove 130 and between the first connection groove 130 and the first connection protrusion 140. The sealing member can seal the gap between the first connection groove 130 and the first connection protrusion 140, so that the first housing 110 and the second housing 120 are sealed and connected, thereby preventing liquid, particles and other impurities outside the housing 100 from entering the housing 100 and affecting the function of the inspection device 10.

[0124] For example, the second end of the first housing 110 and the second end of the second housing 120 may be provided with a second connection groove 150 on one side facing the other. The second end of the first housing 110 and the second end of the second housing 120 may be provided with a second connection protrusion 160. The second end of the first housing 110 and the second end of the second housing 120 are both away from the endoscope 20 or the dilator 30. Figure 5 and Figure 6 As shown, the second connection groove 150 is provided at the second end of the second housing 120, and the second connection protrusion 160 is provided at the second end of the first housing 110. The second connection protrusion 160 can be inserted into the second connection groove 150. For example, the groove bottom of the second connection groove 150 can be provided with a threaded hole, and the second connection protrusion 160 can be provided with a connection through hole. When the second connection protrusion 160 is located in the second connection groove 150, the connection through hole is opposite to the threaded hole. The second connection protrusion 160 can be connected to the second connection groove 150 by a connection bolt that is penetrated in the connection through hole and screwed into the threaded hole. The first housing 110 and the second housing 120 are detachably connected by the second connection groove 150 and the second connection protrusion 160 that are inserted into each other.

[0125] The housing 100 may also be provided with a connecting tube 170, for example, the connecting tube 170 may be connected to the second end of the first housing 110. The connecting tube 170 may be in communication with the accommodating cavity of the housing 100. The inspection device 10 may be provided with an electrical connection line for connecting external devices such as a power supply, a display, a computer, and a surgical instrument, and the electrical connection line may be inserted into the connecting tube 170 to be electrically connected to the components in the accommodating cavity. For example, the functional circuit board 410 may include a third connecting terminal 411, and the third connecting terminal 411 may be electrically connected to an external device through an electrical connection line inserted into the connecting tube 170.

[0126] The mainboard 200 is located in the accommodating cavity and connected to the housing 100. For example, the mainboard 200 can be directly connected to the housing 100 by connecting bolts. Fig. 9 and Fig.10 The mainboard 200 can also be connected to the button assembly 300 through the isolation column 412, and the button assembly 300 is connected to the first connecting portion 111 of the first shell 110 through the isolation column 412, so that the mainboard 200 is indirectly connected to the shell 100. Compared with the related art in which the mainboard is directly connected to the shell, such a setting can further reduce the volume of the mainboard 200, thereby reducing the volume of the inspection device 10, which is conducive to the miniaturization of the endoscopic inspection equipment.

[0127] The mainboard 200 is electrically connected to the key assembly 300. For example, the mainboard 200 may include a key function circuit, and the key function circuit has a first connection pad for electrically connecting to the key assembly 300. The key assembly 300 may be soldered to the first connection pad.

[0128] The functional circuit board 410 is located on a side of the mainboard 200 away from the key assembly 300. Exemplarily, the functional circuit board 410 may not be electrically connected to the mainboard 200. In some possible implementations of the embodiment of the present application, the functional circuit board 410 may also be electrically connected to the mainboard 200. For example, the mainboard 200 may also include an image function circuit, and the image function circuit has a second connection pad electrically connected to the functional circuit board 410. The mainboard 200 has a first surface 210 and a second surface 220 opposite to each other, and the first connection pad may be arranged on the first surface 210, and the second connection pad may be arranged on the second surface 220.

[0129] refer to Fig. 9 and Fig.10 A first connection circuit board 230 and a second connection circuit board 240 may be respectively disposed at both ends of the main board 200 .

[0130] The first connection circuit board 230 may be located on one side of the main board 200 close to the first end of the housing 100. The first connection circuit board 230 is connected to the housing 100. For example, the first connection circuit board 230 may be connected to the image acquisition system 400, thereby being indirectly connected to the housing 100.

[0131] The first connection circuit board 230 may be provided with a first connection terminal 231. Figure 3 , the first connection terminal 231 may be a metal contact. Figure 4 , the first connection terminal 231 can also be a USB Type-C interface. A first connection window 116 can be provided at the first end of the housing 100, and the first connection window 116 exposes the first connection terminal 231. The first connection circuit board 230 can be electrically connected to the mainboard 200 through a flexible flat cable (Flexible Flat Cable, FFC for short) or a harness. When the inspection device 10 is installed in the endoscope 20, the first connection terminal 231 exposed by the first connection window 116 can be electrically connected to the endoscope 20, thereby electrically connecting the mainboard 200, the first connection circuit board 230 and the endoscope 20 to transmit electrical signals between the endoscope 20 and the inspection device 10.

[0132] For example, the second connection circuit board 240 may be located on one side of the main board 200 close to the second end of the housing 100. The second connection circuit board 240 is connected to the housing 100. Figure 5 , a third connection portion 117 may be provided in the first housing 110. The third connection portion 117 may be a columnar structure, and the third connection portion 117 may be provided with a threaded hole. The second connection circuit board 240 may be provided with a connection through hole, and the connection through hole is opposite to the threaded hole. The second connection circuit board 240 may be connected to the third connection portion 117 by a connection bolt that is penetrated through the connection through hole and screwed into the threaded hole.

[0133] The second connection circuit board 240 may be provided with a second connection terminal 241. For example, the second connection terminal 241 may be a metal contact. The second connection terminal 241 may also be a USB Type-C interface. The second end of the housing 100 may be provided with a second connection window 118, and the second connection window 118 exposes the second connection terminal 241. The second connection circuit board 240 may be electrically connected to the mainboard 200 via a flexible flat cable (Flexible Flat Cable, FFC for short) or a harness. The second connection terminal 241 exposed by the second connection window 118 may be electrically connected to an external device such as a display, a computer, a surgical instrument, etc., so as to transmit electrical signals between the external device and the inspection device 10.

[0134] The key assembly 300 may be located on a side of the main board 200 facing the key window 112. Fig. 9 , Fig.10 and Fig.16 , the key assembly 300 may include a key pressing plate 320, a key board 330 and at least one key switch 310. The key switch 310 is welded to the side of the main board 200 facing the key window 112. The key pressing plate 320 is located on the side of the main board 200 facing the key window 112, and is connected to the main board 200 and the housing 100. For example, the main board 200 and the key pressing plate 320 may be connected to the first connecting portion 111 of the first housing 110 through an isolation column 412. The key pressing plate 320 is provided with a key through hole 340, and the key through hole 340 is sleeved on the key switch 310. The key board 330 may include a key portion 350 and a limiting portion 360, the key portion 350 is opposite to the key switch 310, a part of the key portion 350 extends out of the key window 112, and a key groove 370 is provided on the side of the key portion 350 facing the key switch 310, and the key groove 370 is covered on the key switch 310. That is, the button portion 350 covers the button switch 310, which can protect the button switch 310, and the button switch 310 can be operated by pressing the button portion 350, which improves the convenience of the button operation. The limiting portion 360 is connected to the edge of the button portion 350 and is located between the button pressing plate 320 and the housing 100. When the button pressing plate 320 is connected to the housing 100, the limiting portion 360 is fixed between the button pressing plate 320 and the housing 100, thereby improving the convenience of fixing the button plate 330.

[0135] The image acquisition system 400 is located in the housing 100 and can acquire an image outside the housing 100 through the light-transmitting window 121. Fig. 9 and Fig.10 The image acquisition system 400 may further include a light source assembly 420, an image acquisition assembly 430, and a mounting frame 440. The mounting frame 440 is located between the functional circuit board 410 and the light transmission window 121, and is connected to the housing 100. The light source assembly 420 is connected to the mounting frame 440 and is electrically connected to the main board 200. The light source assembly 420 is configured to emit light to the outside of the housing 100 through the light transmission window 121. The image acquisition assembly 430 is mounted on the mounting frame 440 and is electrically connected to the functional circuit board 410. The image acquisition assembly 430 is configured to acquire an image outside the housing 100 through the light transmission window 121.

[0136] When inspecting the second preset position, the functional circuit board 410 controls the light source assembly 420 to emit light to the outside of the housing 100 through the light transmission window 121 to illuminate the second preset position. The functional circuit board 410 controls the image acquisition assembly 430 to acquire an image of the second preset position outside the housing 100 through the light transmission window 121, thereby inspecting the second preset position.

[0137] In addition, during the process of assembling and adjusting the inspection device 10, since the light source assembly 420 and the image acquisition assembly 430 are both mounted on the mounting frame 440, the light source assembly 420 and the image acquisition assembly 430 can be firstly assembled and adjusted on the mounting frame 440, and then the assembled light source assembly 420, the image acquisition assembly 430 and the mounting frame 440 are mounted on the housing 100. Such an arrangement can improve the relative position accuracy between the light source assembly 420, the image acquisition assembly 430 and the mounting frame 440, and improve the convenience of assembling and adjusting the inspection device 10, thereby improving the image quality acquired by the inspection device 10.

[0138] refer to Fig. 9 and Fig.10 , the mounting frame 440 may have a first mounting surface 441 opposite to the light-transmitting window 121. The light source assembly 420 may include a light source circuit board 421 and at least one light-emitting device 422, the light source circuit board 421 is connected to the first mounting surface 441, and is electrically connected to the functional circuit board 410. For example, the light source circuit board 421 may be a flexible printed circuit (Flexible Printed Circuit, referred to as FPC), which can be directly welded to the functional circuit board. At least one light-emitting device 422 is connected to the side of the light source circuit board 421 away from the first mounting surface 441. The light-emitting device 422 can emit light under the action of the light source circuit board 421. Exemplarily, there may be multiple light-emitting devices 422, and the spectra of light emitted by the multiple light-emitting devices 422 may be the same or different, which will not be described in detail in the embodiments of the present application.

[0139] For example, reference Fig. 9 The image acquisition component 430 may have a first light incident surface 4311, and the light source circuit board 421 surrounds at least a portion of the first light incident surface 4311 to prevent the light source circuit board 421 from blocking the light entering the image acquisition component 430. Moreover, since the light source circuit board 421 surrounds at least a portion of the first light incident surface 4311, the plurality of light emitting devices 422 may be arranged along the circumference of the first light incident surface 4311 to illuminate the second preset position in the circumference of the first light incident surface 4311, thereby improving the uniformity of illumination.

[0140] The image acquisition component 430 can acquire an image outside the housing 100. Exemplarily, the image acquisition component 430 may include an imaging camera, which may be installed in the mounting bracket 440, and the light incident surface of the imaging camera is opposite to the light transmission window 121 to receive external light for imaging.

[0141] In some possible implementations of the present application, reference is made to Fig.10 , Fig.11 and Fig.12 The image acquisition component 430 may include a beam splitter prism 431, a first camera 432, and a second camera 433. The beam splitter prism 431 has a first light incident surface 4311 opposite to the light transmission window 121. Light from the outside of the housing 100 enters the beam splitter prism 431 through the light transmission window 121 and the first light incident surface 4311, and is divided into a first light path A and a second light path B that are independent of each other. For example, referring to Fig.12 , the beam splitter prism 431 may include two right-angle prisms whose oblique surfaces are attached to each other. One right-angle surface of one of the right-angle prisms is a first light incident surface 4311, and the other right-angle surface of the right-angle prism is a second light exit surface 4314, and the oblique surfaces attached to each other are a beam splitter surface 4312. One right-angle surface of the other right-angle prism is a first light exit surface 4313. External light can enter the beam splitter prism 431 through the first light incident surface 4311, and when incident on the beam splitter surface 4312, it is divided into a first light path A and a second light path B that are perpendicular to each other at the beam splitter surface 4312, the first light path A is emitted through the first light exit surface 4313, and the second light path B is emitted through the second light exit surface 4314.

[0142] Exemplarily, the ratio of the luminous flux between the first optical path A and the second optical path B may 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 may also be other values, which will not be described in detail in the embodiments of the present application.

[0143] The first camera 432 may be located on the first optical path A, and the first camera 432 is used to form an image with a first magnification. The second camera 433 is located on the second optical path B, and the second camera 433 is used to form an image with a second magnification, and the second magnification is greater than the first magnification. In this way, the image acquisition component 430 can acquire images with different magnifications, so that it is convenient for the operator to check the second preset position.

[0144] The image acquisition component 430 may further include a steering prism 434, which is located on the second optical path B and between the beam splitter prism 431 and the second camera 433. The steering prism 434 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 431 and the second camera 433, thereby reducing the space occupied by the image acquisition component 430, which is conducive to the miniaturization of the inspection device 10.

[0145] Exemplarily, the turning prism 434 may include a second light incident surface 4341, a first light reflecting surface 4342, a second light reflecting surface 4343, and a third light exiting surface 4344. The second light incident surface 4341 is opposite to the second light exiting surface 4314. The first light reflecting surface 4342 is opposite to the second light incident surface 4341. The second light reflecting surface 4343 is opposite to the first light reflecting surface 4342 and is adjacent to the second light incident surface 4341. The third light exiting surface 4344 is located between the first light reflecting surface 4342 and the second light reflecting surface 4343.

[0146] The light emitted from the second light emitting surface 4314 enters the second light incident surface 4341 and is then reflected by the first light reflecting surface 4342 . The light is reflected to the second light reflecting surface 4343 , and then is reflected by the second light reflecting surface 4343 , emitted from the third light emitting surface 4344 , and enters the second camera 433 .

[0147] refer to Fig.12 The steering angle α of the steering prism 434 can be 25° to 30°, for example, the steering angle α can be 25°, 26°, 27°, 28°, 29° or 30°. The steering angle α refers to the angle between the light incident on the steering prism 434 and the light emitted from the steering prism 434. It can be understood that the steering prism 434 can also be a steering prism of other forms, and the steering angles of other forms of steering prisms can also be other values, which will not be repeated in the embodiments of the present application.

[0148] The light source assembly 420 and the image acquisition assembly 430 are both mounted on the mounting frame 440. Fig.13 , Fig.14 and Fig.15 The mounting frame 440 may be provided with a prism mounting groove 442, and the notch of the prism mounting groove 442 is opposite to the light-transmitting window 121. When the image acquisition component 430 includes a beam splitter prism 431, the prism mounting groove 442 is used to mount the beam splitter prism 431. When the image acquisition component 430 also includes a steering prism 434, the prism mounting groove 442 is also used to mount the steering prism 434. The notch of the prism mounting groove 442 is opposite to the light-transmitting window 121, which can prevent the mounting frame 440 from blocking light, so that as much external light as possible enters the image acquisition component 430, thereby improving the image quality.

[0149] For example, reference Fig.13 The prism mounting groove 442 has a plurality of groove walls that are adjacent to each other in sequence, and an avoidance groove 4421 may be provided between each two adjacent groove walls. The side surfaces of the beam splitter prism 431 and / or the steering prism 434 fit with the groove walls of the prism mounting groove 442 to fix the beam splitter prism 431 and / or the steering prism 434. The edges of the beam splitter prism 431 and / or the steering prism 434 may be located in the avoidance groove 4421 to avoid interference between the edges of the beam splitter prism 431 and / or the steering prism 434 and the area where two adjacent groove walls in the prism mounting groove 442 intersect and prevent the beam splitter prism 431 and / or the steering prism 434 from being installed in the mounting frame 440.

[0150] For example, reference Fig.13 When the image acquisition component 430 includes the beam splitter prism 431 and the steering prism 434, the prism mounting groove 442 may include a first sub-groove 4422 and a second sub-groove 4423 that are connected, the first sub-groove 4422 accommodates the beam splitter prism 431, and the second sub-groove 4423 accommodates the steering prism 434. An isolation portion 4424 may be provided between the first sub-groove 4422 and the second sub-groove 4423, and the isolation portion 4424 is located between the beam splitter prism 431 and the steering prism 434. Along the depth direction of the first sub-groove 4422, the height of the isolation portion 4424 is less than the depth of the first sub-groove 4422. Along the depth direction of the second sub-groove 4423, the height of the isolation portion 4424 is less than the depth of the second sub-groove 4423. The isolation portion 4424 is used to isolate the beam splitter prism 431 from the steering prism 434. When assembling the image acquisition component 430, the relative position between the beam splitter prism 431 and the steering prism 434 can be adjusted by adjusting the size of the isolation portion 4424, and the isolation portion 4424 will not block the light between the beam splitter prism 431 and the steering prism 434, thereby improving the relative position accuracy of the beam splitter prism 431 and the steering prism 434, and further improving the quality of the image formed by the image acquisition component 430.

[0151] refer to Figures 13 to 15The mounting frame 440 may also be provided with at least one adjustment through hole 4425, and at least one adjustment through hole 4425 extends through the prism mounting groove 442. After the beam splitter prism 431 and / or the steering prism 434 are mounted in the prism mounting groove 442, since the side surfaces of the beam splitter prism 431 and / or the steering prism 434 are in contact with the groove wall of the prism mounting groove 442, and the contact area is large, the beam splitter prism 431 and / or the steering prism 434 are difficult to move in the prism mounting groove 442. When the beam splitter prism 431 and / or the steering prism 434 need to be adjusted, for example, when the positions of the beam splitter prism 431 and / or the steering prism 434 are offset, or when the beam splitter prism 431 and / or the steering prism 434 are damaged and need to be replaced, it is difficult to adjust the beam splitter prism 431 and / or the steering prism 434. Therefore, the through hole 4425 can be adjusted to contact the beam splitter prism 431 and / or the steering prism 434, thereby applying a moving force to the beam splitter prism 431 and / or the steering prism 434, so that the beam splitter prism 431 and / or the steering prism 434 move, thereby improving the convenience of adjusting the beam splitter prism 431 and / or the steering prism 434.

[0152] For example, reference Fig.14 and Fig.15 The mounting frame 440 may also be provided with a camera mounting groove 443 for mounting the first camera 432, and the camera mounting groove 443 may be arranged opposite to the first sub-groove 4422, and the first sub-groove 4422 and the camera mounting groove 443 may be connected through a first light-through hole 4426. When light is emitted from the beam splitter prism 431, it may be incident into the camera mounting groove 443 through the first light-through hole 4426, and enter the first camera 432 for imaging.

[0153] The mounting frame 440 may also be provided with a mounting tube 444 for connecting the second camera 433. The mounting tube 444 is arranged opposite to the second sub-groove 4423. The second sub-groove 4423 and the mounting tube 444 may be connected through a second light hole 4427. When light is emitted from the steering prism 434, it may be incident into the mounting tube 444 through the second light hole 4427 and enter the second camera 433 for imaging.

[0154] refer to Figure 5 and Fig.13A first positioning portion 113 may be provided on the inner side of the first end of the housing 100. For example, the first positioning portion 113 may be located on the inner side of the first end of the first housing 110. The first positioning portion 113 has a first positioning surface 1131. A second positioning portion 445 may be provided on the side of the mounting frame 440 facing the first end of the housing 100. The second positioning portion 445 is provided with a second positioning surface 4451 facing the housing 100. The second positioning surface 4451 is in contact with the first positioning surface 1131, thereby positioning the mounting frame 440 and the housing 100, and improving the relative position accuracy between the mounting frame 440 and the housing 100.

[0155] Exemplarily, the first positioning surface 1131 and the second positioning surface 4451 may both be stepped surfaces, and the matching stepped surfaces may constrain the first positioning surface 1131 and the second positioning surface 4451 in multiple directions, further improving the relative position accuracy between the mounting frame 440 and the shell 100 .

[0156] refer to Figure 5 , Fig.13 and Fig.14 , the inner side wall of the housing 100 may also be provided with a third positioning portion 114 and a second connecting portion 115, for example, the third positioning portion 114 and the second connecting portion 115 are both located on the inner side of the first housing 110. The third positioning portion 114 has a third positioning surface 1141. The second connecting portion 115 is provided with a threaded hole. The mounting frame 440 may be provided with at least one connecting arm 446, and the connecting arm 446 may include a fourth positioning portion 4461 and a fourth connecting portion 4462 connected to each other. The fourth positioning portion 4461 has a fourth positioning surface 4463 on the side facing the housing 100, and the fourth positioning surface 4463 is in contact with the third positioning surface 1141 to position the connecting arm 446 and the housing 100, thereby positioning the mounting frame 440 and the housing 100, and further improving the relative position accuracy between the mounting frame 440 and the housing 100. The fourth connecting portion 4462 is provided with a connecting through hole 4464, and the connecting through hole 4464 is opposite to the threaded hole. The fourth connection portion 4462 can be connected to the housing 100 via a connection bolt that passes through the connection through hole 4464 and is screwed into the threaded hole.

[0157] refer to Fig. 9 and Fig.10 The inspection device 10 may further include a distance sensor 500 . The distance sensor 500 may be electrically connected to the functional circuit board 410 . The distance sensor 500 is used to measure the distance of the second preset position.

[0158] Exemplarily, the distance sensor 500 may be a laser distance measuring sensor or the like.

[0159] For example, the distance sensor 500 may be installed on the side of the turning prism 434 facing the light-transmitting window 121. The distance sensor 500 may transmit a distance measurement signal to the outside of the housing 100 through the light-transmitting window 121 to measure the distance of the second preset position.

[0160] It is understandable that the distance sensor 500 may also be other types of distance sensors, such as an infrared distance sensor or an ultrasonic distance sensor, etc. The distance sensor 500 may also be installed at other positions of the inspection device 10, which will not be described in detail in the embodiment of the present application.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An inspection device, It is characterized in that include: A housing having a receiving cavity; A main board, located in the accommodating cavity and connected to the shell; A key assembly, part of which is located in the accommodating cavity and on one side of the mainboard, and the key assembly is electrically connected to the mainboard; An image acquisition system is located in the accommodating cavity, and the image acquisition system includes a functional circuit board. The functional circuit board is located on a side of the main board away from the key assembly.

2. The inspection device according to claim 1, It is characterized in that The mainboard is formed with a key function circuit and an image function circuit, the key function circuit has a first connection pad for electrically connecting to the key assembly; the image function circuit has a second connection pad electrically connected to the functional circuit board; The mainboard has a first surface and a second surface opposite to each other. The first connecting pad is arranged on the first surface, and the second connecting pad is arranged on the second surface.

3. The inspection device according to claim 1 or 2, It is characterized in that A key window is disposed on the side of the shell, the key window is opposite to the key assembly, and a portion of the key assembly extends out of the key window.

4. The inspection device according to claim 3, It is characterized in that The key assembly includes a key pressure plate, a key board and at least one key switch. The key switch is welded to a side of the mainboard facing the key window; The key pressing plate is located on a side of the main board facing the key window and is connected to the main board and the housing. The key pressing plate is provided with at least one key through hole, and the key through hole is sleeved on the key switch. The key plate is located on the side of the key pressure plate facing the key window, and the key plate includes a key part and a limiting part. The key part is opposite to the key switch, and part of the key part extends out of the key window. A key groove is provided on the side of the key part facing the key switch, and the key groove covers the key switch; the limiting part is connected to the edge of the key part and is located between the key pressure plate and the shell.

5. The inspection device according to claim 1 or 2, It is characterized in that The housing has a first end that is docked with the endoscope, and the first end of the housing is provided with a light-transmitting window; The image acquisition system further comprises a mounting frame, a light source assembly and an image acquisition assembly, wherein the mounting frame is located between the functional circuit board and the light-transmitting window and is connected to the housing; The light source assembly is connected to the mounting frame and is electrically connected to the mainboard, and the light source assembly is configured to emit light to the outside of the housing through the light-transmitting window; The image acquisition component is mounted on the mounting frame and is electrically connected to the functional circuit board. The image acquisition component is configured to acquire an image outside the housing through the light-transmitting window.

6. The inspection device according to claim 5, It is characterized in that The mounting frame has a first mounting surface opposite to the light-transmitting window; The light source assembly includes a light source circuit board and at least one light-emitting device. The light source circuit board is connected to the first mounting surface and is electrically connected to the functional circuit board. At least one of the light-emitting devices is connected to a side of the light source circuit board away from the first mounting surface.

7. The inspection device according to claim 6, It is characterized in that The image acquisition component has a first light incident surface, and the light source circuit board surrounds at least a portion of the first light incident surface.

8. The inspection device according to claim 5, It is characterized in that The image acquisition component comprises a beam splitter prism, a first camera and a second camera, the beam splitter prism having a first light incident surface opposite to the light-transmitting window, the light outside the housing enters the beam splitter prism through the light-transmitting window and the first light incident surface, and is divided into a first light path and a second light path that are independent of 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.

9. The inspection device according to claim 8, It is 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.

10. The inspection device according to claim 9, It is characterized in that The mounting frame is provided with a prism mounting groove, and the notch of the prism mounting groove is opposite to the light-transmitting window.

11. The inspection device according to claim 10, It is characterized in that The prism installation groove has a plurality of groove walls adjacent to each other in sequence, and an avoidance groove is arranged between every two adjacent groove walls; The side surfaces of the beam splitter prism and / or the steering prism are in contact with the groove wall of the prism installation groove, and the edges of the beam splitter prism and / or the steering prism are located in the avoidance groove.

12. The inspection device according to claim 10, It is characterized in that The mounting frame is further provided with at least one adjustment through hole, and at least one of the adjustment through holes penetrates through the prism mounting groove.

13. The inspection device according to claim 10, It is characterized in that The prism mounting groove includes a first sub-groove and a second sub-groove that are connected to each other, the first sub-groove accommodates the beam splitter prism, the second sub-groove accommodates the steering prism, an isolation portion is provided between the first sub-groove and the second sub-groove, and the isolation portion is located between the beam splitter prism and the steering prism; along the depth direction of the first sub-groove, the height of the isolation portion is less than the depth of the first sub-groove; along the depth direction of the second sub-groove, the height of the isolation portion is less than the depth of the second sub-groove.

14. The inspection device according to claim 13, It is characterized in that The mounting frame is also provided with a camera mounting groove for mounting the first camera, the camera mounting groove is arranged opposite to the first sub-groove, and the first sub-groove is connected with the camera mounting groove through a first light-through hole.

15. The inspection device according to claim 13, It is characterized in that The mounting frame is also provided with a mounting tube for connecting the second camera, the mounting tube is arranged opposite to the second sub-groove, and the second sub-groove is connected to the mounting tube through a second light-through hole.

16. The inspection device according to claim 5, It is characterized in that A first positioning portion is disposed on the inner side of the first end of the housing, and the first positioning portion has a first positioning surface; A second positioning portion is disposed on one side of the mounting frame facing the first end of the shell, and the second positioning portion is disposed with a second positioning surface facing the shell, and the second positioning surface is in contact with the first positioning surface.

17. The inspection device according to claim 16, It is characterized in that The first positioning surface and the second positioning surface are both step surfaces.

18. The inspection device according to claim 5, It is characterized in that The inner side wall of the housing is provided with a third positioning portion and a second connecting portion, the third positioning portion has a third positioning surface; the second connecting portion is provided with a threaded hole; The mounting frame is also provided with at least one connecting arm, which includes a fourth positioning portion and a fourth connecting portion connected to each other, the fourth positioning portion has a fourth positioning surface on the side facing the shell, and the fourth positioning surface is in contact with the third positioning surface; the fourth connecting portion is provided with a connecting through hole, and the connecting through hole is opposite to the threaded hole.

19. The inspection device according to claim 1 or 2, It is characterized in that The shell comprises a first shell and a second shell which are detachably connected, and the first shell and the second shell are arranged to enclose the accommodating cavity.

20. The inspection device according to claim 19, It is characterized in that A first connecting groove is provided on one side of the first shell and the second shell facing the other; The other of the first shell and the second shell is provided with a first connecting protrusion, and the first connecting protrusion is inserted into the first connecting groove.

21. The inspection device according to claim 20, It is characterized in that The housing further includes a sealing member, wherein the sealing member is located in the first connecting groove and between the first connecting groove and the first connecting protrusion.

22. The inspection device according to claim 19, It is characterized in that A second connecting groove is provided on one side of the second end of the first shell and the second end of the second shell facing the other side; The other of the second end of the first shell and the second end of the second shell is provided with a second connecting protrusion, and the second connecting protrusion is inserted into the second connecting groove; Wherein, the second end of the first shell and the second end of the second shell are both away from the endoscope or the dilator.

23. An endoscopy device, It is characterized in that Comprising the inspection device as described in any one of claims 1-22.

24. The endoscopic inspection apparatus according to claim 23, It is characterized in that An endoscope is also included, and the inspection device is installed in the endoscope and is electrically connected to the endoscope.

25. The endoscopic inspection apparatus according to claim 23, It is characterized in that Also included is a dilator, in which the inspection device is installed.

Images