Video laryngoscope

Abstract

The utility model discloses an embodiment provides a kind of video laryngoscope, it is related to endoscope technical field.The video laryngoscope includes display screen, quick connector module and laryngoscope handle, quick connector module includes quick connector, upper cover body, lower cover body and battery cylinder, upper cover body and lower cover body are detachably connected, and are enclosed to form chamber, battery cylinder is set in chamber;Battery cylinder is used to accommodate battery;Display screen is rotatably connected with upper cover body and / or lower cover body;The side of lower cover body away from display screen is connected with quick connector;Laryngoscope handle is detachably connected with quick connector.Display screen and upper cover body / lower cover body rotatably connected can improve the comfort and flexibility when video laryngoscope is operated;Upper cover body and lower cover body are detachably connected, battery cylinder is placed in the chamber enclosed by upper and lower cover body, it is beneficial to installation maintenance and battery replacement, and it has good sealing property;Setting quick connector can realize the quick installation and disassembly of video laryngoscope.

Description

Technical Field

[0001] This utility model relates to the field of endoscopy technology, and more specifically, to a video laryngoscope. Background Technology

[0002] Video laryngoscopes are a newly developed video intubation system in recent years, consisting of a laryngoscope blade, handle, and LCD video window. The operation of a video laryngoscope is the same as that of a traditional laryngoscope. The laryngoscope is inserted into the pharynx, and the LCD video window provides a clear and intuitive view of the pharyngeal structures, with the glottis clearly visible. Compared to traditional laryngoscopes, its advantages include easier intubation and higher accuracy. Therefore, video laryngoscopes are now widely used in major hospitals for endotracheal intubation.

[0003] However, current video laryngoscopes require a large gripping force to operate, leading to operator fatigue, and are inconvenient for battery replacement and installation / repair. Utility Model Content

[0004] This invention provides a video laryngoscope that improves comfort and flexibility during operation and facilitates battery replacement and installation / maintenance.

[0005] The embodiments of this utility model can be implemented as follows: An embodiment of this utility model provides a video laryngoscope, which includes: Display screen; A quick-connect connector module includes a quick-connect connector, an upper cover, a lower cover, and a battery sleeve. The upper cover and the lower cover are detachably connected and enclose a cavity, in which the battery sleeve is disposed. The battery sleeve is used to accommodate a battery. The display screen is rotatably connected to the upper cover and / or the lower cover. The quick-connect connector is connected to the side of the lower cover away from the display screen. The laryngoscope handle is detachably connected to the quick-connect fitting.

[0006] In an optional embodiment, the battery sleeve includes a first battery cover, a cylindrical body, a battery spring, and a second battery cover. The first battery cover is disposed at one end of the cylindrical body, and the battery spring and the second battery cover are disposed at the other end of the cylindrical body. A first sealing element is disposed between the cylindrical body and the first battery cover, and a second sealing element is disposed between the cylindrical body and the second battery cover.

[0007] In an optional embodiment, one end of the cylinder is threadedly connected to the first battery cover; And / or, the other end of the cylinder and the battery spring are fixedly disposed in the cavity, the other end of the cylinder and the battery spring are spaced apart, and the second battery cover is sleeved on the outside of the upper cover and the lower cover.

[0008] In an optional embodiment, the inner wall of the upper cover and / or the lower cover is provided with a wire groove, which is used to guide wiring and fix the wire harness.

[0009] In an optional embodiment, the upper cover and the lower cover are snap-fitted together.

[0010] In an optional embodiment, the quick-connect fitting is sleeved onto the lower cover.

[0011] In an optional embodiment, the video laryngoscope further includes a rotating shaft, and the display screen is rotatably connected to the upper cover and / or the lower cover via the rotating shaft; the rotating shaft is disposed in the cavity and connected to the display screen through an opening on the quick-connect module, and the rotating shaft has a built-in damping mechanism to enable the display screen to be suspended at any angle.

[0012] In an optional embodiment, the rotating shaft includes a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft being coaxial; one end of the first rotating shaft is fixedly connected to the display screen, and the other end of the first rotating shaft is fixedly connected to the upper cover and / or the lower cover through a bushing, and the damping mechanism is built into the first rotating shaft; And / or, the two ends of the second rotating shaft are respectively snapped onto the housing of the display screen and the upper cover and / or the lower cover, and a through hole is provided in the middle of the second rotating shaft, through which the connecting wire harness of the display screen and the quick-connect connector module passes.

[0013] In an optional embodiment, the laryngoscope handle extends longitudinally therein, and one end of the laryngoscope handle is connected to the quick-connect connector; the centerline of the battery cylinder intersects the longitudinal axis of the laryngoscope handle, so that the center of gravity of the battery cylinder and the battery it contains is located on the longitudinal axis of the laryngoscope handle.

[0014] In an optional embodiment, the video laryngoscope further includes a laryngeal blade mounted on the end of the laryngoscope handle away from the quick-release connector.

[0015] The beneficial effects of the video laryngoscope in this embodiment of the present invention include, for example: This video laryngoscope includes a display screen, a quick-connect module, and a laryngoscope handle. The quick-connect module includes a quick-connect connector, an upper cover, a lower cover, and a battery holder. The upper and lower covers are detachably connected and enclose a chamber, where the battery holder is located; the battery holder houses the battery. The display screen is rotatably connected to the upper and / or lower cover. A quick-connect connector is attached to the side of the lower cover away from the display screen. The laryngoscope handle is detachably connected to the quick-connect connector. The rotatable connection of the display screen to the upper / lower cover allows the operator to adjust the screen direction according to their most natural and comfortable posture and viewing angle, significantly reducing muscle fatigue and discomfort, thus improving operational comfort. Furthermore, the rotating screen allows the operator to obtain a better field of vision in different body positions and operating habits, improving operational adaptability, flexibility, and freedom. The detachable connection of the upper and lower covers, with the battery holder located within the chamber enclosed by the upper and lower covers, facilitates installation, maintenance, and battery replacement, and provides good sealing. The quick-connect connector enables rapid installation and removal of the video laryngoscope. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a video laryngoscope provided in an embodiment of the present invention; Figure 2 This is an exploded schematic diagram of a video laryngoscope provided in an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the video laryngoscope provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of a video laryngoscope with the top cover removed, provided in an embodiment of the present invention. Figure 5 This is a partially enlarged schematic diagram of point A provided in an embodiment of this utility model.

[0018] Icons: 1000 - Video laryngoscope; 100 - Display screen; 200 - Quick-connect connector module; 210 - Quick-connect connector; 211 - Connector; 212 - Ring; 220 - Upper cover; 230 - Lower cover; 231 - Cable groove; 240 - Battery holder; 241 - First battery cover; 242 - Battery holder; 243 - Second battery cover; 244 - First seal; 245 - Second seal; 246 - Battery spring; 300 - Laryngoscope handle; 400 - Laryngoscope blade; 500 - Rotary shaft; 510 - First rotating shaft; 520 - Second rotating shaft. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] Video laryngoscopes are a newly developed video intubation system in recent years, consisting of a lens, handle, and LCD video window. The operation of a video laryngoscope is the same as a traditional laryngoscope: the laryngoscope is inserted into the pharynx, and the LCD video window provides a clear and intuitive view of the pharyngeal structures, with the glottis clearly visible. Compared to traditional laryngoscopes, its advantages include easier intubation and higher accuracy. Therefore, video laryngoscopes are now widely used in major hospitals for endotracheal intubation. However, current video laryngoscopes require considerable gripping force, leading to operator fatigue, and are inconvenient for battery replacement and installation / maintenance.

[0026] Based on this, please refer to Figure 1 and Figure 2 The video laryngoscope 1000 provided in the embodiments of this utility model can effectively solve the aforementioned technical problems. The video laryngoscope 1000 can be quickly installed and disassembled, and is convenient for battery replacement and installation / maintenance.

[0027] Figure 1 This is a schematic diagram of the video laryngoscope 1000 provided in an embodiment of the present invention; Figure 2 This is an exploded view of the video laryngoscope 1000 provided in an embodiment of this utility model. Please refer to... Figure 1 and Figure 2In this embodiment, the video laryngoscope 1000 includes a display screen 100, a quick-connect connector module 200, and a laryngoscope handle 300. The quick-connect connector module 200 includes a quick-connect connector 210, an upper cover 220, a lower cover 230, and a battery holder 240. The upper cover 220 and the lower cover 230 are detachably connected and enclose a cavity, in which the battery holder 240 is disposed; the battery holder 240 is used to hold a battery. The display screen 100 is rotatably connected to the upper cover 220 and / or the lower cover 230. The quick-connect connector 210 is connected to the side of the lower cover 230 away from the display screen 100. The laryngoscope handle 300 is detachably connected to the quick-connect connector 210. The display screen 100 may be rotatably connected only to the upper cover 220, only to the lower cover 230, or simultaneously to both the upper cover 220 and the lower cover 230. The rotatable connection between the display screen 100 and the upper cover 220 and / or lower cover 230 allows the operator to adjust the screen orientation according to their most natural and comfortable posture and viewing angle, significantly reducing muscle fatigue and discomfort, thus improving operational comfort. Furthermore, the rotating screen allows the operator to obtain a better field of view in different positions (standing, sitting, at the patient's head or side) and with different operating habits, improving operational adaptability and freedom. The quick-connect connector 210 enables rapid installation and removal of the video laryngoscope 1000. In addition, the design of the separate upper cover 220 and lower cover 230, with the upper and lower covers 230 being detachable, and the battery compartment 240 housed within the cavity enclosed by the upper and lower covers, facilitates battery replacement, saves battery replacement time, is suitable for emergency rescue scenarios, and is easy to install and maintain. It also ensures good internal sealing, meeting requirements for disinfection and storage / use in humid environments.

[0028] The display screen 100 is rotatably connected to the cover and supports multi-angle adjustment to accommodate the line of sight of operators of different heights. The battery holder 240 is housed within the cavity, isolating the battery and circuitry to prevent corrosion. The laryngoscope handle 300 is connected to the cover via a quick-connect coupling 210, allowing for quick assembly and disassembly and facilitating the replacement of different handles as needed. The upper cover 220 and lower cover 230 are detachably connected, facilitating the installation of the battery holder 240 and quick-connect coupling 210, and also aiding in internal wiring and maintenance / rework. Furthermore, the built-in battery improves grip stability. The battery in this embodiment can be a disposable battery or a rechargeable battery; no limitation is made.

[0029] Specifically, in this embodiment, the upper cover 220 and the lower cover 230 are snap-fit ​​connected. The upper cover 220 and the lower cover 230 can be quickly and securely fastened together using snap-fit ​​fasteners and grooves. For example, a snap-fit ​​fastener can be provided on the upper cover 220, and a groove can be provided on the lower cover 230 to mate with the snap-fit ​​fastener; or a groove can be provided on the upper cover 220, and a snap-fit ​​fastener can be provided on the lower cover 230 to mate with the groove. Furthermore, the upper cover 220 and the lower cover 230 can also be connected using threaded fasteners such as bolts or screws, or other detachable connection methods can be used, which are not limited here.

[0030] Please continue reading. Figure 1 and Figure 2 To enable rapid installation and removal of the video laryngoscope 1000, the quick-connect connector 210 in this embodiment is sleeved onto the lower cover 230. To ensure a secure connection between the quick-connect connector 210 and the lower cover 230, threaded fasteners such as screws are also used to connect them. Specifically, the lower cover 230 is sleeved onto the quick-connect connector 210, and screws or other threaded fasteners are installed inside the lower cover 230 for fixation.

[0031] Figure 3 This is a cross-sectional schematic diagram of the video laryngoscope 1000 provided in an embodiment of this utility model. Please refer to... Figure 1 and Figure 2 and combined Figure 3 In this embodiment, the connecting member 211 inside the quick-connect connector 210 is fixed inside the quick-connect connector 210 by means of pressure ring fixing, screw fixing, adhesive, etc. The collar 212 outside the quick-connect connector 210 is rotatably disposed between the connecting member 211 and the lower cover 230. In order to ensure the connection sealing between the connecting member 211 and the lower cover 230, a sealing member is also provided between the connecting member 211 and the lower cover 230 in this embodiment.

[0032] Please see Figure 1 In this embodiment, the laryngoscope handle 300 extends longitudinally, and one end of the laryngoscope handle 300 is connected to the quick-connect connector 210. The centerline of the battery cylinder 240 intersects the longitudinal axis of the laryngoscope handle 300, so that the center of gravity of the battery cylinder 240 and the battery it contains is located on the longitudinal axis of the laryngoscope handle 300. This design allows the overall center of gravity of the video laryngoscope 1000 to fall on or be close to the handle of the video laryngoscope 1000, thereby making it more comfortable for the operator to hold the video laryngoscope 1000 with one hand, improving the controllability of the video laryngoscope 1000, and making its use more flexible.

[0033] Optionally, the video laryngoscope 1000 in this embodiment also includes a laryngoscope blade 400, which is mounted on the end of the laryngoscope handle 300 away from the quick-connect connector 210.

[0034] Because the cover houses electrical components such as wiring harnesses, batteries, battery springs 246, and connectors 211, water or moisture ingress into the cover can damage some structural components of the video laryngoscope 1000, affecting its performance. Therefore, to improve the waterproof performance of the video laryngoscope 1000, please refer to [link to relevant documentation]. Figure 2 In this embodiment, the battery sleeve 240 includes a first battery cover 241, a sleeve 242, a battery spring 246, and a second battery cover 243. The first battery cover 241 is disposed at one end of the sleeve 242, and the battery spring 246 and the second battery cover 243 are disposed at the other end of the sleeve 242. A first sealing member 244 is disposed between the sleeve 242 and the first battery cover 241, and a second sealing member 245 is disposed between the sleeve 242 and the second battery cover 243. By providing the first sealing member 244 and the second sealing member 245, the overall waterproof sealing of the battery sleeve 240 can be ensured, preventing liquid from entering the battery sleeve 240 and damaging the battery.

[0035] In this embodiment, both the first sealing element 244 and the second sealing element 245 are sealing rings, specifically "O"-ring sealing rings. Of course, the first sealing element 244 and the second sealing element 245 can also be other sealing structures such as silicone gaskets, which are not limited here.

[0036] Furthermore, to facilitate battery replacement and maintenance, the battery sleeve 240 in this embodiment adopts a three-section structure, allowing for quick opening and closing and individual maintenance. To facilitate the disassembly and installation of the first battery cover 241, one end of the cylinder 242 in this embodiment is threadedly connected to the first battery cover 241; the other end of the cylinder 242 and the battery spring 246 are fixedly disposed within the cavity enclosed by the upper and lower covers, with the other end of the cylinder 242 and the battery spring 246 spaced apart. The second battery cover 243 is sleeved on the outside of the upper and lower covers. The second battery cover 243 can be detachably connected to the upper and lower covers using threaded connections, snap-fit ​​connections, or other methods, which are not limited here.

[0037] Specifically, in this embodiment, the upper cover 220 and the lower cover 230 together form a partial battery tube 240 structure. This design facilitates the spaced arrangement and fixation of the tube 242 and the battery spring 246. The second battery cover 243 is sleeved on the outside of the upper cover 220 and the lower cover 230 to connect and fix the upper cover 220 and the lower cover 230, improving stability. Furthermore, a first sealing element 244 is provided between the tube 242 and the first battery cover 241, and a second sealing element 245 is provided between the tube 242 and the second battery cover 243. Through the above connection design and the combination of sealing elements, the sealing performance of the battery tube 240 can be further improved.

[0038] To further improve the overall waterproof sealing of the cover, a sealing strip is provided at the connection between the upper cover 220 and the lower cover 230 in this embodiment. Specifically, a sealing strip is provided at the edge where the upper cover 220 and the lower cover 230 meet. In this embodiment, the upper cover 220 has continuous protrusions, and the lower cover 230 has continuous grooves. The protrusions and grooves cooperate to clamp the sealing strip. To enhance the waterproof sealing at the connection between the upper cover 220 and the lower cover 230, waterproof adhesive is also applied to the sealing strip in this embodiment to form a sealed space between the upper cover 220 and the lower cover 230.

[0039] Figure 4 This is a schematic diagram of a video laryngoscope 1000 with the top cover 220 removed, provided in an embodiment of the present invention. Figure 5 This is a partially enlarged schematic diagram of point A provided in an embodiment of this utility model. Please refer to... Figure 4 and Figure 5 In this embodiment, the video laryngoscope 1000 also includes a rotating shaft 500. The display screen 100 is rotatably connected to the upper cover 220 and / or the lower cover 230 via the rotating shaft 500. The rotating shaft 500 is disposed within the cavity and connected to the display screen 100 through an opening on the quick-connect connector module 200. The rotating shaft 500 has a built-in damping mechanism to allow the display screen 100 to be suspended at any angle. The damping mechanism can be a friction plate, a worm gear, or a hydraulic damping structure, etc. The damping mechanism provides rotational resistance. When the operator adjusts the angle, a certain force needs to be applied. After the force is stopped, the damping force will keep the display screen 100 stationary. This design ensures that the display screen 100 will not easily rotate after being rotated to the set angle, thus affecting observation.

[0040] Specifically, in this embodiment, the rotating shaft 500 includes a first rotating shaft 510 and a second rotating shaft 520, which are coaxial. One end of the first rotating shaft 510 is fixedly connected to the display screen 100, and the other end is fixedly connected to the upper cover 220 and / or the lower cover 230 via a bushing. The first rotating shaft 510 has a built-in damping mechanism. The two ends of the second rotating shaft 520 are respectively snapped onto the housing of the display screen 100 and the upper cover 220 and / or the lower cover 230. A through hole is provided in the middle of the second rotating shaft 520, through which the connecting wire harness of the display screen 100 and the quick-connect connector module 200 passes. This design enhances the stability and load capacity of the rotating structure, significantly improving the stability of the display screen 100. The first rotating shaft 510 is fixed to the lower cover 230 via a bushing and bears the main weight of the display screen 100. Its built-in damping mechanism ensures the reliability of the suspension. The second rotating shaft 520 is used to share the torsional load of the first rotating shaft 510, preventing excessive force on a single shaft from causing deformation, thereby improving the service life of the rotating shaft 500. The synergistic effect of the spools also reduces screen jitter during insertion. The coaxial arrangement of the first rotating shaft 510 and the second rotating shaft 520 reduces rotational wear and ensures a uniform distribution of rotational resistance. Furthermore, by setting the first rotating shaft 510 and the second rotating shaft 520, the required rotational force can be reduced, improving operational convenience. In this embodiment, the first rotating shaft 510 and the second rotating shaft 520 are spaced apart along the axial direction. Of course, the first rotating shaft 510 and the second rotating shaft 520 can also be designed as a single, connected rotating shaft 500; this is not limited here. The position of the rotating shaft 500 is also not limited, as long as it allows for a rotatable connection between the display screen 100 and the quick-connect connector module 200.

[0041] Please see Figure 4 and Figure 5 and combined Figure 2 In this embodiment, the inner walls of the upper cover 220 and / or the lower cover 230 are provided with wire grooves 231, which are used to guide wiring and fix the wire harness. Clips or partial narrowing designs can be provided at certain locations in the wire grooves 231 to secure the wire harness. Furthermore, sealant can be applied to the wiring terminals and the wiring circuit board for further protection.

[0042] In summary, the video laryngoscope 1000 includes a display screen 100, a quick-connect connector module 200, and a laryngoscope handle 300. The quick-connect connector module 200 includes a quick-connect connector 210, an upper cover 220, a lower cover 230, and a battery holder 240. The upper cover 220 and lower cover 230 are detachably connected and enclose a chamber, in which the battery holder 240 is disposed; the battery holder 240 is used to hold batteries. The display screen 100 is rotatably connected to the upper cover 220 and lower cover 230. The quick-connect connector 210 is connected to the side of the lower cover 230 away from the upper cover 220. The laryngoscope handle 300 is detachably connected to the quick-connect connector 210. The rotatable connection of the display screen 100 to the upper cover 220 / lower cover 230 allows the operator to adjust the screen direction according to their more natural and comfortable posture and viewing angle, which can significantly reduce the operator's muscle fatigue and discomfort, thereby improving the comfort during operation. Furthermore, the rotating screen allows the operator to obtain a better field of vision in different body positions and operating habits, improving the adaptability, flexibility, and freedom of operation. The upper cover 220 and lower cover 230 are detachably connected, and the battery cylinder 240 is placed in the cavity enclosed by the upper and lower covers, which facilitates installation, maintenance, and battery replacement, and has good sealing performance. The quick-connect connector 210 enables rapid installation and removal of the video laryngoscope 1000.

[0043] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A video laryngoscope, characterized in that, include: Display screen (100); A quick-connect connector module (200) includes a quick-connect connector (210), an upper cover (220), a lower cover (230), and a battery sleeve (240). The upper cover (220) and the lower cover (230) are detachably connected and enclose a cavity. The battery sleeve (240) is disposed within the cavity. The battery sleeve (240) is used to hold a battery. The display screen (100) is rotatably connected to the upper cover (220) and / or the lower cover (230). The quick-connect connector (210) is connected to the side of the lower cover (230) away from the display screen (100). The laryngoscope handle (300) is detachably connected to the quick-connect fitting (210).

2. The video laryngoscope according to claim 1, characterized in that, The battery tube (240) includes a first battery cover (241), a tube body (242), a battery spring (246), and a second battery cover (243). The first battery cover (241) is disposed at one end of the tube body (242), and the battery spring (246) and the second battery cover (243) are disposed at the other end of the tube body (242). A first sealing element (244) is disposed between the tube body (242) and the first battery cover (241), and a second sealing element (245) is disposed between the tube body (242) and the second battery cover (243).

3. The video laryngoscope according to claim 2, characterized in that, One end of the cylindrical body (242) is threadedly connected to the first battery cover (241); And / or, the other end of the cylinder (242) and the battery spring (246) are fixedly disposed in the cavity, the other end of the cylinder (242) and the battery spring (246) are spaced apart, and the second battery cover (243) is sleeved on the outside of the upper cover (220) and the lower cover (230).

4. The video laryngoscope according to claim 1, characterized in that, The inner wall of the upper cover (220) and / or the lower cover (230) is provided with a wire groove (231), which is used to guide wiring and fix the wire harness.

5. The video laryngoscope according to claim 1, characterized in that, The upper cover (220) and the lower cover (230) are snap-fitted together.

6. The video laryngoscope according to claim 1, characterized in that, The quick-connect fitting (210) is sleeved on the lower cover (230).

7. The video laryngoscope according to claim 1, characterized in that, The video laryngoscope (1000) also includes a rotating shaft (500), and the display screen (100) is rotatably connected to the upper cover (220) and / or the lower cover (230) through the rotating shaft (500); the rotating shaft (500) is disposed in the cavity and is connected to the display screen (100) through an opening on the quick-connect module (200), and the rotating shaft (500) has a built-in damping mechanism to enable the display screen (100) to be suspended at any angle.

8. The video laryngoscope according to claim 7, characterized in that, The rotating shaft (500) includes a first rotating shaft (510) and a second rotating shaft (520), the first rotating shaft (510) and the second rotating shaft (520) are coaxial; one end of the first rotating shaft (510) is fixedly connected to the display screen (100), and the other end of the first rotating shaft (510) is fixedly connected to the upper cover (220) and / or the lower cover (230) through a bushing, and the damping mechanism is built into the first rotating shaft (510); And / or, the two ends of the second rotating shaft (520) are respectively snapped onto the housing of the display screen (100) and the upper cover (220) and / or the lower cover (230), and a through hole is provided in the middle of the second rotating shaft (520), and the connecting wire harness of the display screen (100) and the quick-connect module (200) passes through the through hole.

9. The video laryngoscope according to any one of claims 1-8, characterized in that, The laryngoscope handle (300) extends longitudinally, and one end of the laryngoscope handle (300) is connected to the quick-connect connector (210); the centerline of the battery cylinder (240) intersects the longitudinal axis of the laryngoscope handle (300) so that the center of gravity of the battery cylinder (240) and the battery it contains is located on the longitudinal axis of the laryngoscope handle (300).

10. The video laryngoscope according to any one of claims 1-8, characterized in that, The video laryngoscope (1000) also includes a laryngoscope blade (400), which is mounted on the end of the laryngoscope handle (300) away from the quick-release connector (210).

Images