Video laryngoscope

Abstract

The utility model relates to the field of medical instruments, in particular to a video laryngoscope which comprises a display device, a lens assembly and a main body assembly. The main body assembly is connected with the display device and is detachably clamped in the lens assembly. The main body assembly comprises a main body shell, a spring buckle, a data assembly and a camera shooting assembly, and rapid clamping connection and detachment are achieved through the spring buckle and the installation part of the lens assembly. The lens assembly comprises a lens integrated shell and a lens cover plate, a sealed lens window is arranged at the tail end, the main body assembly is prevented from making direct contact with a patient, and the disposable use cost is reduced. Through the detachable design, repeated use of the main body assembly is achieved, resource waste and medical waste generation are reduced, meanwhile, the universality and flexibility of equipment are improved, lens assemblies of different specifications are adapted, the use cost is reduced, and remarkable environmental protection and economic benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a video laryngoscope. Background Technology

[0002] Video laryngoscopes, as indispensable instruments in the medical field, are widely used in procedures requiring observation of the laryngeal structure, such as endotracheal intubation and laryngeal surgery. Utilizing a light source and camera integrated into the lens, they allow doctors to clearly view images of the larynx on a display screen, greatly improving the accuracy and safety of the procedure.

[0003] Currently, most video laryngoscopes on the market consist of three parts: a display device, a handle, and a lens. To ensure stability and safety during use, the lens typically uses a hollow metal shell to enclose the internal light source and camera components. Since video laryngoscopes need to be inserted into the patient's throat during use, to prevent cross-infection and because the cleaning and disinfection process is cumbersome and costly, they are mostly designed for single use. That is, the handle and lens are discarded together after use, while the display device, since it does not come into contact with the patient's mouth or throat, can be reused.

[0004] However, during the development of the embodiments of this application, the inventors discovered numerous problems with the existing technology. The handle and lens contain camera components (circuit lines, light source) and data components (circuit lines, PCB components, connectors, etc.). These components require high quality to ensure device stability, and their actual service life far exceeds that of a single use. Furthermore, since they do not directly contact the patient's mouth or throat, single-use would result in significant waste and increase the cost of the video laryngoscope. While the metal material of traditional video laryngoscope lenses offers excellent strength and safety, its high cost makes single-use impractical. In addition, when used video laryngoscopes are recycled as medical waste, the presence of camera components, data components, and other electronic components, as well as plastic handles and metal lenses of different materials, necessitates a series of processes such as disinfection, disassembly, and sorting, leading to high recycling costs. Utility Model Content

[0005] This application provides a video laryngoscope, which solves the problems of high resource waste and high recycling costs in the single-use process of video laryngoscopes in the prior art, and achieves single-use with less waste, reduced costs, convenient use, and environmental friendliness.

[0006] This application provides a video laryngoscope, including a display device, a lens assembly, and a main body assembly. The display device is connected to the main body assembly, and the main body assembly is detachably snapped into the lens assembly.

[0007] The main component includes a main housing, a spring clip, a data component, and a camera component. The upper inner side of the main housing has a spring clip that extends out of the main housing. The data component extends out of the lower end of the main housing. The camera component is located at the end of the data component away from the main housing. After the display device is connected to the main component, it is electrically connected to the camera component through the data component.

[0008] The lens assembly includes an integrated lens housing, which comprises a handle and a lens portion. One side of the upper end of the handle protrudes outward to form a mounting portion. The main body assembly is detachably engaged with the mounting portion of the lens assembly via a spring clip. A lens window is located at the rear end of the lens portion, and a light-transmitting seal is fixedly installed on the lens window. This light-transmitting seal allows the camera assembly to transmit light while simultaneously sealing the interior of the lens portion, preventing contact between components of the main body assembly and the patient's mouth or throat, thus avoiding the need for the main body assembly to be replaced after single use.

[0009] As a preferred embodiment of this application, the lens assembly further includes a lens cover plate, with an opening on the side of the lens portion for sealing and fastening of the lens cover plate. This facilitates the installation of the light-transmitting sealing element and also allows for the injection molding of the integrated lens housing.

[0010] As some embodiments of this application, a spring placement part is provided on the lower side of the mounting part, and a mounting slot is opened on the outer side of the mounting part.

[0011] As some embodiments of this application, the main body shell is composed of a first main body shell and a second main body shell fastened together. A button bracket is provided inside the upper side of the main body shell. A button hole is opened on the main body shell outside the button bracket. A snap-fit ​​hole is opened below the button hole. A hinge seat is provided above the button hole.

[0012] As some embodiments of this application, the spring clip includes a first spring, a button, a mounting latch, a hinge, and a second spring. The button is mounted on a button hole and extends out of the main body housing. The first spring is abutted against the rear side of the button, and the other end of the first spring abuts against the button bracket. The upper end of the button is the hinge, which is hinged to a hinge seat. The mounting latch is located below the button and extends out of the main body housing through the latch hole. The second spring is located below the mounting latch. When the main body assembly is latched inside the lens assembly, one end of the second spring abuts against the lower part of the mounting latch, and the other end abuts against the spring placement part. The mounting latch is held in place by the first spring and latched into the mounting slot. The spring clip facilitates the latching and disassembly of the lens assembly and the main body assembly.

[0013] As a preferred embodiment of this application, the button bracket has a limiting groove, and the spring clip also includes a limiting rod. The limiting rod is located behind the button and sleeved inside the first spring, and the limiting rod and the limiting groove are slidably connected around the hinge axis. The setting of the limiting groove and the limiting rod helps to improve the stability of the engagement and the smoothness of the button pressing, making the engagement and disassembly between the lens assembly and the main body assembly smoother.

[0014] As some embodiments of this application, the main body component also includes a guide tube assembly and a telescopic assembly. The guide tube assembly is installed inside the main body housing, and the telescopic assembly is slidably connected inside the guide tube assembly. The data component is fixedly installed on the telescopic assembly and extends out of the lower end of the telescopic assembly.

[0015] As some embodiments of this application, a tie rod is provided on the lower side of the second main body shell;

[0016] The pipe guide assembly includes a slide groove and a guide groove. The slide groove runs through the pipe guide assembly from top to bottom, and several vertical guide grooves are opened on the side of the pipe guide assembly.

[0017] The telescopic assembly includes guide rods, tension springs, and connecting parts. Several guide rods are located on the upper side of the telescopic assembly and extend outwards. The number of guide rods matches the number of guide slots. The telescopic assembly slides up and down within the groove of the tube-guide assembly. The guide rods pass through the guide slots and slide with them. One end of the tension spring is connected to the end of the guide rod that passes through the guide slot, and the other end of the tension spring is connected to the pull rod. A connecting part is located at the bottom of the telescopic assembly for connecting the data assembly. Through the cooperation of the tube-guide assembly and the telescopic assembly, the length of the camera assembly extending from the main assembly can be adjusted, thus adapting to lens assemblies of different lengths and sizes. In other words, after selecting different lens assemblies according to different patients or different throat depths, the same main assembly can be used for adaptive adaptation, eliminating the need for a separate main assembly for each lens assembly size, further reducing resource waste.

[0018] As some embodiments of this application, the lower side of the main body shell is provided with a constriction portion, and the lower end of the constriction portion is provided with a tube guide slot; the lower side of the tube guide assembly is also provided with several inclined portions, and the lower side of the inclined portions is provided with a tube guide ring protrusion. The constriction portion abuts against the inclined portions, and the tube guide slot abuts against the tube guide ring protrusion to prevent the tube guide assembly from moving downward.

[0019] As a preferred embodiment of some embodiments of this application, the tube guide assembly is composed of a first tube guide and a second tube guide fastened together. The first tube guide is provided with a first groove on the upper side and a second groove on the lower side. The second tube guide is provided with a first flange that is fastened to the first groove and a second flange that is fastened to the second groove.

[0020] As a preferred embodiment of some embodiments of this application, the telescopic component is composed of a first telescopic member and a second telescopic member fastened together. The first telescopic member includes a first latching protrusion located on the upper side and a second latching protrusion located on the lower side. The second telescopic member includes a first hook that is fastened to the first latching protrusion and a second hook that is fastened to the second latching protrusion.

[0021] As a preferred embodiment of this application, there are two guide grooves, located in the middle part of the fastening joint of the first tube guide and the second tube guide respectively; correspondingly, there are also two guide rods and tension springs.

[0022] As some embodiments of this application, a thickened reinforcing portion is provided between the handle portion and the lens portion. This increases the strength of the lens assembly and prevents breakage or loosening during use.

[0023] As some embodiments of this application, the handle portion is provided with an arc-shaped textured anti-slip part. This makes the grip more comfortable and provides an anti-slip effect.

[0024] As some embodiments of this application, the display device includes a connector, through which the display device is connected to the main component. This facilitates the connection between the display device and the main component, and makes it convenient for the storage, maintenance, and disinfection of the video laryngoscope.

[0025] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0026] 1. Reduced resource waste and operating costs: By designing the lens assembly of the video laryngoscope as an integrated shell structure including the handle and lens, and making both the main body and lens assembly detachable, the main body components (including the data and camera components) are reusable. Only the lens assembly (including the integrated lens shell, lens cover, and light-transmitting seal), which comes into direct contact with the patient, is disposable. This design avoids the waste of the main body components found in traditional disposable video laryngoscopes, significantly reducing operating costs.

[0027] 2. Improve the versatility and flexibility of the equipment: The main body component, through the design of telescopic and tubular components, can be adapted to lens assemblies of different lengths and sizes. This means that the same main body component can be used for lens assemblies of various specifications, further reducing the need for repeated purchases of equipment and improving the versatility and flexibility of the equipment.

[0028] 3. Enhanced safety and environmental friendliness: The lens assembly adopts a disposable design, avoiding the risk of cross-infection. At the same time, the reusability of the main components reduces the generation of medical waste and lowers the complexity and cost of medical waste disposal, which is in line with the concept of green environmental protection.

[0029] 4. Enhanced safety and ease of use: The handle of the lens assembly is designed with an anti-slip part, which increases the comfort and stability of the grip. In addition, the snap-fit ​​and disassembly of the main body assembly and the lens assembly are simple to operate, and quick installation and disassembly can be achieved through spring buckles, which improves the ease of use of the equipment.

[0030] 5. Reduced recycling costs: Since the main components are reusable and the disposable lens components have a relatively simple structure, the disassembly and sorting work during recycling is reduced, thus lowering the cost of medical waste recycling. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0033] Figure 2 This is a three-dimensional structural diagram of an embodiment of this application from another direction;

[0034] Figure 3 This is a three-dimensional structural diagram of the display device plus the main component according to an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the internal structure of the main body shell in an embodiment of this application;

[0036] Figure 5 This is a cross-sectional structural diagram of an embodiment of this application;

[0037] Figure 6 This is a three-dimensional structural diagram of an exploded video laryngoscope according to an embodiment of this application;

[0038] Figure 7 This is a three-dimensional exploded view of the lens assembly according to an embodiment of this application;

[0039] Figure 8 This is an exploded three-dimensional structural diagram of the main components in an embodiment of this application;

[0040] Figure 9 This is an exploded perspective view of the pipe guide assembly and telescopic assembly according to an embodiment of this application;

[0041] Figure 10 This is an exploded three-dimensional structural diagram of the telescopic component according to an embodiment of this application;

[0042] Figure 11 This is a three-dimensional exploded view of the main body shell of an embodiment of this application.

[0043] The attached figures are labeled as follows: 1. Display device; 11. Connector; 2. Lens assembly; 2a. Integrated lens housing; 2b. Lens cover plate; 2c. Light-transmitting seal; 21. Handle; 211. Anti-slip part; 22. Mounting part; 221. Spring placement part; 222. Mounting bayonet; 23. Lens part; 24. Thickened and reinforced part; 25. Lens window; 3. Main body assembly; 4. Main body housing; 4a. First main body housing; 4b. Second main body housing; 41. Button bracket; 411. Limiting slide groove; 42. Recessed opening; 43. Tube guide bayonet; 44. Button hole; 45. Pull rod; 46. Hinge seat; 47. Snap-fit ​​hole; 5. Spring buckle; 51. Limiting slide groove 52. Rod; 53. First spring; 54. Button; 55. Mounting clip; 56. Hinge; 57. Second spring; 6. Tube guide assembly; 6a. First tube guide; 6a1. First groove; 6a2. Second groove; 6b. Second tube guide; 6b1. First flange; 6b2. Second flange; 61. Slide groove; 62. Beveled part; 63. Tube guide ring protrusion; 64. Guide groove; 7. Telescopic assembly; 7a. First telescopic component; 7a1. First locking protrusion; 7a2. Second locking protrusion; 7b. Second telescopic component; 7b1. First hook; 7b2. Second hook; 71. Guide rod; 72. Tension spring; 73. Connecting part; 8. Data assembly; 9. Camera assembly. Detailed Implementation

[0044] To better understand the above technical solution, the following detailed description of the specific implementation method is provided.

[0045] Example 1: This example discloses a video laryngoscope, such as... Figure 1 , Figure 2 As shown, it includes a display device 1, a lens assembly 2, and a main body assembly 3. The display device 1 is connected to the main body assembly 3, and the main body assembly 3 is detachably snapped into the lens assembly 2.

[0046] like Figures 3-6 As shown, the main body component 3 includes a main body shell 4, a spring clip 5, a data component 8, and a camera component 9. The upper inner side of the main body shell 4 is provided with a spring clip 5 that partially extends out of the main body shell 4. The data component 8 is provided inside the main body shell 4 and extends out of the lower end of the main body shell 4. The camera component 9 is provided at the end of the data component 8 that is away from the main body shell 4. After the display device 1 is connected to the main body component 3, it is electrically connected to the camera component 9 through the data component 8.

[0047] like Figure 6 , Figure 7As shown, the lens assembly 2 is composed of a lens housing 2a and a lens cover plate 2b that are sealed and fastened together. The lens housing 2a includes a handle part 21 and a lens part 23. One side of the upper end of the handle part 21 protrudes outward to form a mounting part 22. The main body assembly 3 is detachably fastened to the mounting part 22 of the lens assembly 2 by a spring buckle 5. The side of the lens part 23 has an opening for the lens cover plate 2b to be sealed and fastened together. A lens window 25 is opened at the tail end of the lens part 23. A light-transmitting sealing element 2c is sealed and fixed on the lens window 25 to prevent the camera assembly 9 from exchanging substances with the patient's mouth or throat. A thickened reinforcing part 24 is provided between the handle part 21 and the lens part 23 to increase the strength of the video laryngoscope at the turning point, so that the video laryngoscope can withstand sufficient force during use and avoid the risk of breakage under force.

[0048] When using this video laryngoscope, first connect the display device 1 to the main component 3, then insert the main component 3 into the lens component 2, so that the camera component 9 abuts against the lens window 25, and is secured to the mounting part 22 by the spring clip 5. Then, insert the video laryngoscope into the patient's throat through the mouth, and observe the patient's throat condition through the display device 1. After use, remove the spring clip 5 from the mounting part 22 to pull the display device 1 and main component 3 out of the lens component 2. At this point, since the lens component 2 is in direct contact with the patient's mouth, it should be discarded as medical waste to avoid cross-infection. The display device 1 and main component 3, since they are not in direct contact with the patient's mouth or throat, can be disinfected and reused. This greatly reduces the waste caused by discarding the main component 3 along with the existing video laryngoscopes.

[0049] Example 2: This example also discloses a video laryngoscope, which, based on Example 1, features a detachable snap-fit ​​structure between the main body component 3 and the lens component 2, such as... Figures 1-8 As shown: A spring placement part 221 is provided on the lower side of the mounting part 22, and a mounting slot 222 is opened on the outer side of the mounting part 22.

[0050] The main body shell 4 is composed of a first main body shell 4a and a second main body shell 4b fastened together. A button bracket 41 is provided inside the upper side of the main body shell 4. A button hole 44 is opened on the main body shell 4 outside the button bracket 41. A snap-fit ​​hole 47 is opened below the button hole 44. A hinge seat 46 is provided above the button hole 44.

[0051] The spring clip 5 includes a first spring 52, a button 53, a mounting clip 54, a hinge 55, and a second spring 56. The button 53 is mounted on the button hole 44 and extends out of the main body shell 4. The first spring 52 is abutted against the rear side of the button 53, and the other end of the first spring 52 abuts against the button bracket 41. The upper end of the button 53 is the hinge 55, which is hinged to the hinge seat 46. The mounting clip 54 is located below the button 53 and extends out of the main body shell 4 through the clip hole 47. The second spring 56 is located below the mounting clip 54. When the main body assembly 3 is clipped into the lens assembly 2, one end of the second spring 56 abuts against the lower part of the mounting clip 54, and the other end abuts against the spring placement part 221. The mounting clip 54 is abutted by the first spring 52 and clipped into the mounting slot 222.

[0052] To ensure a more stable engagement, this embodiment also includes a limiting groove 411 on the button bracket 41. The spring buckle 5 also includes a limiting slide rod 51, which is located behind the button 53 and sleeved inside the first spring 52. The limiting slide rod 51 and the limiting groove 411 are slidably connected around the hinge portion 55 axis.

[0053] When the main component 3 needs to be inserted and snapped into the lens assembly 2, first insert the camera component 9 gradually downwards along the upper end of the lens assembly 2 until it reaches the lens window 25. At this time, press and hold button 53 to cause the mounting latch 54 to retract around the center of the hinge 55 until the mounting latch 54 moves to the mounting slot 222. Release button 53, causing the mounting latch 54 to extend under the elastic force of the first spring 52, and then, under the elastic force of the second spring 56, the upper end of the mounting latch 54 abuts against the upper end of the mounting slot 222. In addition, the limiting position of the hinge 55 and the hinge seat 46 prevents the main component 3 from actively disengaging from the lens assembly 2. When it is necessary to remove the main component 3 from the lens assembly 2, manually press button 53 to cause the mounting latch 54 to retract around the center of the hinge 55, and then pull the lens assembly 2 downwards until the mounting latch 54 leaves the range of the mounting part 22, at which point the main component 3 can be completely pulled out of the lens assembly 2.

[0054] Example 3: This example discloses a video laryngoscope. Based on Example 2, to further adapt to different patients or different laryngeal depths, a main component 3 is designed to accommodate different specifications and models of lens assemblies 2, such as... Figures 1-11 As shown, the main body component 3 also includes a guide tube component 6 and a telescopic component 7. The guide tube component 6 is installed inside the main body shell 4, and the telescopic component 7 is slidably connected inside the guide tube component 6. The data component 8 is fixedly installed on the telescopic component 7 and extends out of the lower end of the telescopic component 7.

[0055] A tie rod 45 is provided on the lower side of the second main shell 4b.

[0056] The pipe guide assembly 6 includes a sliding groove 61 and a guide groove 64. The sliding groove 61 runs through the pipe guide assembly 6 from top to bottom, and the pipe guide assembly 6 has several vertical guide grooves 64 on its side.

[0057] The telescopic assembly 7 includes guide rods 71, tension springs 72, and connecting parts 73. Several guide rods 71 ​​are located on the upper side of the telescopic assembly 7 and extend outwards. The number of guide rods 71 ​​is the same as the number of guide grooves 64. The telescopic assembly 7 slides up and down within the sliding groove 61 of the tube guide assembly 6. The guide rods 71 ​​pass through the guide groove 64 and slide with it. One end of the tension spring 72 is connected to the end of the guide rod 71 that passes through the guide groove 64, and the other end of the tension spring 72 is connected to the pull rod 45. A connecting part 73 is provided below the telescopic assembly 7 for connecting the data assembly 8. In this embodiment, the number of guide rods 71, tension springs 72, and guide grooves 64 are all two, and they are symmetrically arranged. There are two guide grooves 64, located in the middle part of the interlocking joint of the first tube guide 6a and the second tube guide 6b, which facilitates even force distribution and avoids jamming.

[0058] The lower side of the main body shell 4 is provided with a constriction portion 42, and the lower end of the constriction portion 42 is provided with a tube guide slot 43; the lower side of the tube guide assembly 6 is also provided with several inclined portions 62, and the lower side of the inclined portions 62 is provided with a tube guide ring protrusion 63. The constriction portion 42 abuts against the inclined portions 62, and the tube guide slot 43 abuts against the tube guide ring protrusion 63 to prevent the tube guide assembly 6 from moving downward.

[0059] The tube guide assembly 6 is composed of a first tube guide 6a and a second tube guide 6b that are fastened together. The first tube guide 6a has a first groove 6a1 on the upper side and a second groove 6a2 on the lower side. The second tube guide 6b has a first flange 6b1 that is fastened to the first groove 6a1 and a second flange 6b2 that is fastened to the second groove 6a2. The fastening design greatly facilitates the installation of its internal telescopic component 7, and also greatly facilitates its own processing and assembly.

[0060] The telescopic assembly 7 is composed of a first telescopic member 7a and a second telescopic member 7b that are fastened together. The first telescopic member 7a includes a first latching protrusion 7a1 located on the upper side and a second latching protrusion 7a2 located on the lower side. The second telescopic member 7b includes a first hook 7b1 that is fastened to the first latching protrusion 7a1 and a second hook 7b2 that is fastened to the second latching protrusion 7a2. The fastening design greatly facilitates the installation of its internal data components 8, and also greatly facilitates its own processing and assembly.

[0061] In this embodiment, to make the grip more comfortable and prevent slipping during use, an arc-shaped anti-slip part 211 is provided on the outside of the handle part 21. The display device 1 includes a connector 11, through which the display device 1 is connected to the main body component 3.

[0062] When the main body component 3 is inserted into the lens component 2, the camera component 9 is at the foremost position, gradually approaching and pressing against the lens window 25. If the spring clip 5 and the mounting part 22 are not yet engaged after the camera component 9 presses against the lens window 25, the main body component 3 needs to be further inserted into the lens component 2. The resistance experienced by the camera component 9 will be transmitted to the telescopic component 7 through the part of the data component 8 located outside the telescopic component 7. The telescopic component 7 overcomes the tension of the spring 72 and slides upward along the slide groove 61 until the spring clip 5 and the mounting part 22 are engaged. Based on this, for different patients or situations requiring different depths into the throat, only the corresponding size of the lens component 2 needs to be selected. The main body component 3, through the cooperation of the tube guide component 6 and the telescopic component 7, can automatically adapt to different sizes of lens components 2, further increasing the versatility of the equipment, reducing the number of main body components 3 that need to be purchased, and thus reducing the cost of using the video laryngoscope. At the same time, it can greatly reduce the medical waste generated by this medical device, simplifying the recycling process after use, making it environmentally friendly.

[0063] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0064] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. Video laryngoscope comprising a display device (1), a lens assembly (2) and a main body assembly (3), characterized in that, The display device (1) is connected to the main component (3), and the main component (3) is detachably snapped into the lens component (2); The main body component (3) includes a main body shell (4), a spring buckle (5), a data component (8), and a camera component (9). The upper inner side of the main body shell (4) is provided with a spring buckle (5) that extends out of the main body shell (4). The main body shell (4) is provided with a data component (8) that extends out of the lower end of the main body shell (4). The end of the data component (8) away from the main body shell (4) is provided with a camera component (9). After the display device (1) is connected to the main body component (3), it is electrically connected to the camera component (9) through the data component (8). The lens assembly (2) includes an integrated lens housing (2a), which includes a handle (21) and a lens (23). The upper side of the handle (21) protrudes outward to form a mounting part (22). The main body assembly (3) is detachably snapped into the mounting part (22) of the lens assembly (2) by a spring clip (5). The lens (23) has a lens window (25) at its tail end, and a light-transmitting sealing element (2c) is sealed and fixed on the lens window (25).

2. A video laryngoscope as claimed in claim 1, wherein, The mounting part (22) has a spring placement part (221) on the lower side, and a mounting slot (222) is opened on the outer side of the mounting part (22); The main body shell (4) is composed of a first main body shell (4a) and a second main body shell (4b) fastened together. The upper interior of the main body shell (4) is provided with a button bracket (41). The main body shell (4) outside the button bracket (41) has a button hole (44). A snap-fit ​​hole (47) is provided below the button hole (44). A hinge seat (46) is provided above the button hole (44). The spring clip (5) includes a first spring (52), a button (53), a mounting clip (54), a hinge (55), and a second spring (56). The button (53) is mounted on the button hole (44) and extends out of the main body shell (4). The first spring (52) is abutted against the rear side of the button (53), and the other end of the first spring (52) abuts against the button bracket (41). The upper end of the button (53) is the hinge (55), which is hinged to the hinge seat (46). The mounting clip (54) is located below the button (53) and extends out of the main body shell (4) through the clip hole (47). The second spring (56) is located below the mounting clip (54). When the main body assembly (3) is clipped into the lens assembly (2), one end of the second spring (56) abuts against the bottom of the mounting clip (54) and the other end abuts against the spring placement part (221). The mounting clip (54) is held in place by the first spring (52) and clipped into the mounting slot (222).

3. A video laryngoscope as claimed in claim 2, wherein, The main body component (3) also includes a pipe guide component (6) and a telescopic component (7). The pipe guide component (6) is installed inside the main body shell (4). The telescopic component (7) is slidably connected inside the pipe guide component (6). The data component (8) is fixedly installed on the telescopic component (7) and extends out of the lower end of the telescopic component (7).

4. A video laryngoscope as claimed in claim 3, wherein, The button bracket (41) has a limit slide groove (411), and the spring buckle (5) also includes a limit slide rod (51). The limit slide rod (51) is located behind the button (53) and is sleeved inside the first spring (52). The limit slide rod (51) is slidably connected to the limit slide groove (411).

5. The video laryngoscope of claim 3, wherein, A tie rod (45) is provided on the lower side of the second main shell (4b); The pipe guide assembly (6) includes a sliding groove (61) and a guide groove (64). The sliding groove (61) runs through the pipe guide assembly (6) from top to bottom, and the pipe guide assembly (6) has several vertical guide grooves (64) on its side. The telescopic assembly (7) includes guide rods (71), tension springs (72), and connecting parts (73). Several guide rods (71) are located on the upper side of the telescopic assembly (7) and extend outward. The number of guide rods (71) is the same as that of the guide grooves (64). The telescopic assembly (7) is slidably connected up and down in the grooves (61) of the tube guide assembly (6). The guide rods (71) pass through the guide grooves (64) and are slidably connected to the guide grooves (64). One end of the tension spring (72) is connected to the end of the guide rod (71) that passes through the guide grooves (64), and the other end of the tension spring (72) is connected to the pull rod (45). The telescopic assembly (7) is provided with a connecting part (73) below it. The connecting part (73) is used for connecting the data assembly (8).

6. A video laryngoscope as claimed in claim 5, wherein, The main body shell (4) has a constriction part (42) on the lower side, and a tube guide slot (43) is provided at the lower end of the constriction part (42); the tube guide assembly (6) also has several inclined parts (62) on the lower side, and a tube guide ring protrusion (63) is provided on the lower side of the inclined parts (62). The constriction part (42) abuts against the inclined parts (62), and the tube guide slot (43) abuts against the tube guide ring protrusion (63) to prevent the tube guide assembly (6) from moving downward.

7. The video laryngoscope of claim 5, wherein, The tube assembly (6) is composed of a first tube lead (6a) and a second tube lead (6b) fastened together. The first tube lead (6a) is provided with a first groove (6a1) on the upper side and a second groove (6a2) on the lower side. The second tube lead (6b) is provided with a first flange (6b1) that is fastened to the first groove (6a1) and a second flange (6b2) that is fastened to the second groove (6a2).

8. The video laryngoscope of claim 2, wherein, The lens assembly (2) also includes a lens cover plate (2b), and the side of the lens part (23) has an opening for the lens cover plate (2b) to be sealed and fastened. The telescopic assembly (7) is composed of a first telescopic member (7a) and a second telescopic member (7b) fastened together. The first telescopic member (7a) includes a first latching protrusion (7a1) located on the upper side and a second latching protrusion (7a2) located on the lower side. The second telescopic member (7b) includes a first hook (7b1) that is fastened to the first latching protrusion (7a1) and a second hook (7b2) that is fastened to the second latching protrusion (7a2).

9. The video laryngoscope of claim 6, wherein, The guide groove (64) is provided in two places, located in the middle part of the fastening joint of the first tube lead (6a) and the second tube lead (6b); correspondingly, the guide rod (71) and the tension spring (72) are provided in two places.

10. The video laryngoscope of claim 1, wherein, A thickened reinforcement part (24) is provided between the handle part (21) and the lens part (23); an arc-shaped anti-slip part (211) is provided on the outside of the handle part (21); the display device (1) includes a connector (11), and the display device (1) is connected to the main body component (3) through the connector (11).

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