Visual laryngoscope

Abstract

The invention provides a visual laryngoscope which comprises a laryngoscope lens, a laryngoscope handle detachably connected with the laryngoscope lens and a hose connected with the laryngoscope handle, and the laryngoscope handle comprises a rotating telescopic assembly, a first handle seat connected with the first end of the rotating telescopic assembly and a second handle seat connected with the second end of the rotating telescopic assembly. The first end of the hose penetrates through the second handle seat to be connected with the rotary telescopic assembly, and the rotary telescopic assembly rotationally controls the length of the part, extending out of the second handle seat, of the hose; therefore, the device can effectively adapt to different patients, and the length of the hose is adjusted according to specific conditions of the patients, so that the situation that the internal structure of the oral cavity cannot be shot or operation is difficult due to the fact that the hose camera is too long or too short is avoided.

Description

Technical Field

[0002] This invention relates to the field of medical device technology, specifically to a video laryngoscope. Background Technology

[0003] A video laryngoscope is a device used to perform endotracheal intubation on patients and to take photos and videos of the larynx. It is suitable for use in anesthesiology departments, emergency departments, ICUs, pediatric departments, ambulances, and other settings in medical departments at all levels, allowing medical staff to perform endotracheal intubation, simulation exercises, clinical teaching, and other procedures under visual guidance.

[0004] The laryngoscope blades are available in various sizes to accommodate patients of different ages and body types, and all blades are disposable to avoid cross-infection and ensure medical safety. The handle and display module, however, are designed for reusability, featuring a precision-sealed structure for waterproofing and dustproofing, facilitating high-temperature and high-pressure sterilization.

[0005] However, existing similar products on the market generally suffer from problems such as inconvenient operation, safety hazards, and poor user experience, causing trouble and uncontrollable risks for medical staff when using these products.

[0006] Therefore, there is an urgent need for a video intubation laryngoscope that is quick to install and remove, safe and reliable, provides clear imaging, and is highly adaptable to solve the problems faced by existing similar products. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a video laryngoscope that can be adjusted according to different models of laryngoscope blades, thereby avoiding the problem of the flexible tube being too long or too short, which would prevent the flexible tube camera from capturing the internal structure of the oral cavity or make operation difficult.

[0008] The technical solution adopted by this invention to solve its technical problem is: A video laryngoscope includes a laryngoscope blade, a laryngoscope handle detachably connected to the laryngoscope blade, and a flexible tube connected to the laryngoscope handle. The laryngoscope handle includes a rotating telescopic assembly, a first handle seat connected to a first end of the rotating telescopic assembly, and a second handle seat connected to a second end of the rotating telescopic assembly. The first end of the flexible tube passes through the second handle seat and is connected to the rotating telescopic assembly. The rotating telescopic assembly rotates to control the length by which the flexible tube extends beyond the second handle seat.

[0009] In one embodiment, the rotary telescopic assembly includes an outer rotary sleeve, an active sliding sleeve disposed within the outer rotary sleeve and fixedly connected to the outer rotary sleeve, a directional ring sleeve disposed within the active sliding sleeve, and a sliding core tube disposed within the directional ring sleeve; wherein... The upper part of the outer surface of the sliding core tube is provided with a symmetrical first sliding column and a second sliding column; The directional ring sleeve is provided with a symmetrical first through groove and a second through groove, the first sliding post extends out of the first through groove, and the second sliding post extends out of the second through groove; The inner wall of the active sliding sleeve is provided with a first spiral slide rail for the first sliding column to slide and a second spiral slide rail for the second sliding column to slide.

[0010] In one embodiment, the active sliding sleeve is provided with at least three sets of positioning holes. The positioning hole sets include a first positioning hole formed on the active sliding sleeve and located in the first spiral slide rail, and a second positioning hole formed on the active sliding sleeve and located in the second spiral slide rail. The first positioning hole and the second positioning hole are symmetrically arranged.

[0011] In one embodiment, the first sliding column has a first groove at the end opposite to the sliding core tube, and a first spring ball is provided in the first groove; the second sliding column has a second groove at the end opposite to the sliding core tube, and a second spring ball is provided in the second groove.

[0012] In one embodiment, the end of the flexible tube away from the laryngoscope handle is connected to a lens mount, the lens mount having a viewing lens and a lighting lamp inside, and the lens mount having a protrusion separating the viewing lens and the lighting lamp.

[0013] In one embodiment, the laryngeal blade has a groove that matches the protrusion.

[0014] In one embodiment, the first handle base is connected to a display screen module, and the communication interface of the display screen module is magnetically connected to the communication interface of the first handle base.

[0015] In one embodiment, the first handle seat is provided with a symmetrical first locking post and a second locking post, and the first end of the laryngeal lens is provided with a fastening element. There is a gap between the fastening element and the first end of the laryngeal lens, and the fastening element is provided with a locking groove that matches the first locking post and the second locking post.

[0016] In one embodiment, the card slot is provided with a limiting block.

[0017] In one embodiment, the laryngeal blade is a disposable laryngeal blade.

[0018] In one embodiment, the laryngeal blade is provided with a metal reinforcing plate, and the metal reinforcing plate and the laryngeal blade are integrally formed.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a laryngoscope blade, a laryngoscope handle, and a flexible tube connected to the laryngoscope handle. The laryngoscope handle includes a rotating telescopic component, a first handle seat connected to a first end of the rotating telescopic component, and a second handle seat connected to a second end of the rotating telescopic component. The first end of the flexible tube passes through the second handle seat and connects to the rotating telescopic component. The rotating telescopic component controls the length of the flexible tube extending beyond the second handle seat. Thus, this application can adjust the video laryngoscope according to different laryngoscope blade models, thereby avoiding situations where the flexible tube camera cannot capture the internal oral cavity structure or where operation is difficult due to the flexible tube being too long or too short. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 For the present invention Figure 1 A schematic diagram of the laryngoscope handle structure; Figure 4 For the present invention Figure 1 A schematic diagram of the laryngeal blade structure; Figure 5 For the present invention Figure 4 A schematic diagram of the exploded structure of a laryngeal blade; Figure 6 For the present invention Figure 3 A schematic diagram of the lens mount structure; Figure 7 For the present invention Figure 4 A schematic diagram of the cross-sectional structure of a laryngeal blade; Figure 8 For the present invention Figure 3 Schematic diagram of the cross-sectional structure in the middle; Figure 9 For the present invention Figure 8 A schematic diagram of the rotating telescopic component structure in the diagram; Figure 10 For the present invention Figure 3 Schematic diagram of the connection structure between the sliding core tube and the flexible tube; Figure 11 For the present invention Figure 3 A schematic diagram of the directional ring structure in the middle; Figure 12 For the present invention Figure 10 A schematic diagram of a structure with a directional ring in the middle; Figure 13 For the present invention Figure 3 Schematic diagram of the active sliding sleeve; Figure 14 For the present invention Figure 13 A cross-sectional schematic diagram of the active sliding sleeve; Figure 15 For the present invention Figure 12 A schematic diagram of a structure with an active sliding sleeve in the middle.

[0021] In the diagram: 50, laryngoscope blade; 51, buckle; 52, gap; 53, slot; 54, groove; 55, metal reinforcing plate; 60, laryngoscope handle; 70, flexible tube; 71, lens mount; 72, viewing lens; 73, illumination lamp; 74, boss; 80, first handle base; 81, first locking post; 82, second locking post; 85, display screen module; 90, second handle base; 100, rotating telescopic assembly; 110, outer rotating sleeve; 120, active sliding sleeve; 121, first spiral slide rail; 122, second spiral slide rail; 123, first positioning hole; 124, second positioning hole; 130, directional ring; 131, first through groove; 132, second through groove; 140, sliding core tube; 141, first sliding post; 142, second sliding post. Detailed Implementation

[0022] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0024] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the coordinate system shown in the accompanying drawings. They are used only for the convenience of describing the present invention 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. Therefore, they should not be construed as limitations on the present invention.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1 like Figure 1-4 As shown, this embodiment includes a laryngoscope blade 50, a laryngoscope handle detachably connected to the laryngoscope blade 50, and a flexible tube 70 connected to the laryngoscope handle 60. In this embodiment, the laryngoscope blade 50 is a disposable laryngoscope blade. Therefore, the laryngoscope blade 50 can be directly discarded after each use, effectively avoiding cross-infection and improving the safety and hygiene standards of clinical operation.

[0029] Because existing disposable laryngeal blades are made of completely transparent plastic, their overall yield strength is limited, posing a safety hazard of breakage during use or under specific circumstances.

[0030] like Figure 5 As shown, the laryngeal blade 50 has a metal reinforcing plate 55 inside. The metal reinforcing plate 55 and the laryngeal blade 50 are an integral whole, which greatly increases the overall strength of the disposable laryngeal blade 50, thereby avoiding potential safety hazards during use. At the same time, it can make the laryngeal blade 50 stronger in the same volume, thereby avoiding the risk of breakage during use.

[0031] like Figure 6As shown, the end of the flexible tube 70 away from the laryngoscope handle 60 is connected to a lens mount 71. The lens mount 71 contains a viewing lens 72 and an illumination lamp 73. The viewing lens 72 is used to acquire image information of the pharynx, and the illumination lamp 73 provides local illumination to enhance image clarity. The viewing lens 72 is electrically connected to the display screen module (described in detail below) and can transmit images in real time, facilitating the operator to accurately guide the intubation path.

[0032] In this embodiment, the lens mount 71 is provided with a protrusion 74 that separates the view lens 72 and the illumination lamp 73. The protrusion 74 effectively prevents the light emitted by the illumination lamp 73 from directly shining on the view lens 72, avoiding halo or imaging interference, and ensuring the clarity and accuracy of image acquisition. The protrusion 74 extends from the inner wall of the lens mount 71 and is made of opaque, high-temperature resistant plastic. It is integrally formed with the lens mount 71, has a stable structure, and is easy to clean and disinfect. The view lens 72 and the illumination lamp 73 are located on both sides of the protrusion 74, in an asymmetrical layout, which further optimizes space utilization and optical performance.

[0033] like Figure 7 As shown, the laryngeal blade 50 has a groove 54 that matches the boss 74; thus, the boss 74 is inserted into the groove 54, further preventing light from being directly reflected from the illumination lamp 73 to the viewing lens 72, effectively reducing stray light interference. The groove 54 and the boss 74 fit tightly, improving the reliability of optical isolation and enhancing the stability of the structural connection.

[0034] In this embodiment, the lens mount 71 is provided with a boss 74, and the laryngeal lens 50 is provided with a groove 54 that matches the boss 74; thus, the problem of glare caused by imaging in existing products in the industry is completely solved.

[0035] In this embodiment, the laryngoscope handle 60 is equipped with a power supply interface and a control switch, and the flexible tube 70 is used to connect an external light source and an image acquisition system to achieve clear airway field of view transmission. The laryngoscope blade 50 and the laryngoscope handle 60 are detachably connected for easy installation and replacement. During use, the operator gently inserts the laryngoscope blade 50 into the patient's oral cavity, gradually exposing the glottis with its arc-shaped structure. At the same time, the illumination and imaging functions are activated by the control switch on the handle to acquire images of the pharynx and larynx in real time. The entire process is simple to operate and responds quickly, significantly improving the intubation success rate and clinical efficiency.

[0036] In this embodiment, the flexible tube 70 is made of medical-grade silicone material that is resistant to tension and bending, ensuring stable signal transmission even under frequent bending operations; multiple independent shielded wires are embedded inside, which are used for power supply, video signal transmission and data communication, respectively, effectively reducing electromagnetic interference and improving the overall reliability of the system.

[0037] When using a video laryngoscope, it's crucial to select a laryngoscope blade of appropriate length based on the patient's demographics, age, and body type to ensure a clear field of vision and smooth operation. Simultaneously, the flexible tubing in the handle must be adjusted to fit different blade sizes. However, in clinical practice, it's often difficult to quickly find the optimal handle for the laryngoscope blade, leading to prolonged operation time or an increased risk of complications.

[0038] like Figure 8 As shown, the laryngoscope handle 60 includes a rotating telescopic assembly 100, a first handle seat 80 connected to a first end of the rotating telescopic assembly 100, and a second handle seat 90 connected to a second end of the rotating telescopic assembly 100. The first end of the flexible tube 70 passes through the second handle seat 90 and is connected to the rotating telescopic assembly 100. The rotating telescopic assembly 100 rotates to control the extension of the flexible tube 70 beyond the second handle seat 90, thereby adjusting the length of the laryngoscope handle 60 to suit different patient body shapes and operational needs.

[0039] In this embodiment, the purpose of the rotating telescopic component 100 in the laryngoscope handle 60 is to allow one laryngoscope handle 60 to be adapted to a variety of disposable laryngoscope blades 50 of different sizes and specifications. The rotation adjustment function allows medical staff to accurately set the laryngoscope handle 60 to the required length.

[0040] like Figure 9 As shown, the rotating telescopic assembly 100 includes an outer rotating sleeve 110, an active sliding sleeve 120 disposed inside the outer rotating sleeve 110 and fixedly connected to the outer rotating sleeve 110, a directional ring sleeve 130 disposed inside the active sliding sleeve 120, and a sliding core tube 140 disposed inside the directional ring sleeve 130; in this embodiment, the first end of the flexible hose 70 is fixedly connected to the bottom of the sliding core tube 140.

[0041] like Figure 10 As shown, the upper part of the outer surface of the sliding core tube 140 is provided with a symmetrical first sliding post 141 and a second sliding post 142; the first sliding post 141 has a first groove at the end opposite to the sliding core tube 140, and a first spring ball is provided in the first groove; the second sliding post 142 has a second groove at the end opposite to the sliding core tube 140, and a second spring ball is provided in the second groove; in this embodiment, the first spring ball and the second spring ball both include a spring disposed in the first groove and the second groove and a ball connected to the spring.

[0042] like Figure 11-12As shown, the directional ring 130 has symmetrical first through grooves 131 and second through grooves 132. The first sliding post 141 extends out of the first through groove 131, and the second sliding post 142 extends out of the second through groove 132. In this embodiment, the first through groove 131 and the second through groove 132 extend downward along the axial direction of the directional ring 130, and their widths are adapted to the diameters of the first sliding post 141 and the second sliding post 142, so that when the first sliding post 141 and the second sliding post 142 on the sliding core tube 140 can move axially within the directional ring 130, that is, when the first sliding post 141 and the second sliding post 142 can drive the sliding core tube 140 to slide synchronously within the first through groove 131 and the second through groove 132 and achieve up and down movement.

[0043] like Figure 13-15 As shown, the inner wall of the active sliding sleeve 120 is provided with a first spiral slide rail 121 for the first sliding column 141 to slide and a second spiral slide rail 122 for the second sliding column 142 to slide. Thus, the first sliding column 141 and the second sliding column 142 symmetrically arranged on the core tube 140 pass through the first through groove 131 and the second through groove 132 on the directional ring sleeve 130, and are embedded in the first spiral slide rail 121 and the second spiral slide rail 122 inside the active sliding sleeve 120. When the active sliding sleeve 120 rotates relative to the directional ring sleeve 130, the first spiral slide rail 121 and the second spiral slide rail 122 guide the first sliding column 141 and the second sliding column 142 to move along a spiral path, thereby driving the core tube 140 and the hose 70 connected to it to achieve axial extension and retraction. By controlling the rotation angle and direction of the active sliding sleeve 120, the exposed length of the hose 70 can be precisely adjusted, improving operational stability and clinical adaptability.

[0044] In this embodiment, the starting and ending segments of the first spiral slide rail 121 and the second spiral slide rail 122 are symmetrically arranged, and the intersection points of the first spiral slide rail 121 and the second spiral slide rail 122 are also symmetrically arranged. In addition, the spiral angles of the first spiral slide rail 121 and the second spiral slide rail 122 are the same, ensuring that the first slide column 141 and the second slide column 142 are subjected to balanced forces during synchronous rotation.

[0045] In this embodiment, the outer wall of the active sliding sleeve 120 is provided with a vertical protrusion, and the inner wall of the outer rotating sleeve 110 is provided with a vertical groove. Thus, the vertical protrusion on the outer wall of the active sliding sleeve 120 and the vertical groove on the inner wall of the outer rotating sleeve 110 cooperate to achieve synchronous rotation between the active sliding sleeve 120 and the outer rotating sleeve 110. When the outer rotating sleeve 110 is rotated, the cooperation of the vertical protrusion and the vertical groove drives the active sliding sleeve 120 to rotate synchronously, thereby causing the first spiral slide rail 121 and the second spiral slide rail 122 inside the active sliding sleeve 120 to rotate synchronously, pushing the first sliding column 141 and the second sliding column 142 to move along a spiral path, thereby driving the sliding core tube 140 to achieve axial extension and retraction. At this time, the axial displacement of the sliding core tube 140 is directly transmitted to the operating end through the flexible hose 70, achieving precise adjustment of the exposed length; the consistency of the helix angle effectively counteracts radial off-center load, avoids jamming, and ensures smooth movement.

[0046] In this embodiment, the outer surface of the sliding core tube 140 is also provided with a scale. Thus, the axial displacement of the hose 70 can be read intuitively through the scale on the outer surface of the sliding core tube 140, thereby accurately controlling the exposed length of the hose 70 and improving the visualization and accuracy of the operation.

[0047] The active sliding sleeve 120 is provided with at least three sets of positioning holes. In this embodiment, there are three sets of positioning holes. The three sets of positioning holes are respectively set at the starting section and ending section of the first spiral slide rail 121 and the second spiral slide rail 122, as well as at the intersection of the first spiral slide rail 121 and the second spiral slide rail 122, to limit the positioning state of the active sliding sleeve 120 in the initial position, the fully extended position, and the intermediate transition position.

[0048] The positioning hole group includes a first positioning hole 123 opened on the active sliding sleeve 120 and located in the first spiral slide rail 121, and a second positioning hole 124 opened on the active sliding sleeve 120 and located in the second spiral slide rail 122. The first positioning hole 123 and the second positioning hole 124 are symmetrically arranged. Thus, the first spring ball and the second spring ball on the first sliding column 141 and the second sliding column 142 can be respectively embedded in the first positioning hole 123 and the second positioning hole 124, realizing the precise positioning and stable holding of the sliding core tube 140 in the initial position, the fully extended position and the intermediate transition position. Through the symmetrical distribution of the three sets of positioning holes, the positioning force at each stage is ensured to be uniform, avoiding positioning failure caused by assembly deviation or motion wear, and further improving the operating feel and reliability of clinical use.

[0049] In this embodiment, the first end of the sliding core tube 140 is connected to the first handle seat 80, and the second end of the sliding core tube 140 is connected to the second handle seat 90. This allows the outer rotating sleeve 110 to be circumferentially connected between the first handle seat 80 and the second handle seat 90, thereby achieving stable transmission of the axial movement of the sliding core tube 140. When the operator rotates the outer rotating sleeve 110, the power is transmitted to the active sliding sleeve 120 through the vertical protrusion and the vertical groove. The rotation of the active sliding sleeve 120 drives the first spiral slide rail 121 and the second spiral slide rail 122 to drive the first sliding column 141 and the second sliding column 142 to extend and retract, thereby controlling the sliding core tube 140 to slide stably along the axial direction in the first through groove 131 and the second through groove 132 on the directional ring sleeve 130, ensuring the extension and retraction action. Throughout the process, the positioning hole group and the spring ball work together to provide clear positioning feedback, ensuring the locking reliability of each key position and improving the intuitiveness and safety of the operation.

[0050] The first handle base 80 is connected to a display screen module 85, and the communication interface of the display screen module 85 and the communication interface of the first handle base 80 are magnetically connected. Thus, the display screen module 85 can display the image information acquired by the lens mount 71 in real time, facilitating the operator's observation of the real-time status of the target area. In this embodiment, the first handle base 80 and the lens mount 71 are connected via a signal line to ensure stable video stream transmission and avoid delays or image distortion. When the sliding core tube 140 completes its extension and retraction, the display screen module 85 synchronously displays the changes in the image captured by the front lens, assisting in judging the instrument's positioning. Combined with the precise control of the spiral slide rail and positioning structure, the linkage and coordination of mechanical movement and visual feedback are achieved, further improving operational accuracy and safety.

[0051] In this embodiment, the magnetic connection between the communication interface of the display screen module 85 and the communication interface of the first handle base 80 can solve the problem of efficient and rapid docking between the laryngoscope handle 60 and the display screen module 85.

[0052] In the existing technology, most laryngoscope blades 50 and laryngoscope handles 60 adopt a spring-ball type disassembly structure. Although it is convenient, long-term use can easily lead to problems such as ball wear and elasticity failure, resulting in loose connection and affecting operational stability. In addition, during repeated disassembly and assembly, the spring-ball structure is prone to contamination or jamming, reducing the service life and safety of the instrument.

[0053] This application describes a first handle base 80 with symmetrical first locking posts 81 and second locking posts 82; a first end of a laryngoscope blade 50 with a locking member 51, a gap 52 between the locking member 51 and the first end of the laryngoscope blade 50, and a locking groove 53 matching the first locking post 81 and the second locking post 82 on the locking member 51; in this embodiment, the locking groove 53 is smaller than the diameter of the first locking post 81 and the second locking post 82; and the locking member 51 is a locking member made of elastic material; thus, by pressing the end of the locking member 51, the locking of the locking groove 53 can be enlarged, and by loosening the locking member 51, the opening of the locking groove 53 can be made smaller than the diameter of the first locking post 81 and the second locking post 82.

[0054] When the laryngoscope handle 60 is installed onto the laryngoscope blade 50, pressing the end of the locking member 51 makes the opening of the slot 53 larger. Then, the first locking post 81 and the second locking post 82 are inserted into the slot 53, and the locking member 51 is released. The elasticity returns, causing the slot 53 to tighten and firmly lock the first locking post 81 and the second locking post 82, achieving a quick connection and reliable fixation between the laryngoscope blade 50 and the laryngoscope handle 60. This structure avoids the wear and jamming problems of spring ball joints, improves connection stability and sealing, and reduces the risk of contamination. When disassembling, simply pressing the end of the locking member 51 again will release the lock, making the operation simple and repeatable. With the linkage feedback of the rotating telescopic component 100 and the display screen module 85, the whole structure forms an integrated design that combines mechanical transmission, visual guidance, and rapid assembly, significantly enhancing the efficiency and safety of clinical operations.

[0055] In this embodiment, the fastening and fixing method between the laryngoscope handle 60 and the disposable laryngoscope blade 50 solves the problems of easy detachment, poor insertion and removal experience, short lifespan, and high cost of existing fixing methods on the market.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A video laryngoscope, comprising a laryngoscope blade (50), a laryngoscope handle (60) detachably connected to the laryngoscope blade (50), and a flexible tube (70) connected to the laryngoscope handle (60), characterized in that: The laryngoscope handle (60) includes a rotating telescopic assembly (100), a first handle seat (80) connected to a first end of the rotating telescopic assembly (100), and a second handle seat (90) connected to a second end of the rotating telescopic assembly (100). The first end of the tubing (70) passes through the second handle seat (90) and is connected to the rotating telescopic assembly (100). The rotating telescopic assembly (100) rotates to control the tubing (70) to extend beyond the length of the second handle seat (90).

2. The video laryngoscope according to claim 1, characterized in that: The rotating telescopic assembly (100) includes an outer rotating sleeve (110), an active sliding sleeve (120) disposed within the outer rotating sleeve (110) and fixedly connected to the outer rotating sleeve (110), a directional ring sleeve (130) disposed within the active sliding sleeve (120), and a sliding core tube (140) disposed within the directional ring sleeve (130); wherein, The upper part of the outer surface of the sliding core tube (140) is provided with a symmetrical first sliding column (141) and a second sliding column (142). The directional ring (130) is provided with a symmetrical first through groove (131) and a second through groove (132), the first sliding post (141) extends out of the first through groove (131), and the second sliding post (142) extends out of the second through groove (132). The inner wall of the active sliding sleeve (120) is provided with a first spiral slide rail (121) for sliding the first slide column (141) and a second spiral slide rail (122) for sliding the second slide column (142).

3. The video laryngoscope according to claim 2, characterized in that: The active sliding sleeve (120) is provided with at least three sets of positioning holes. The positioning hole sets include a first positioning hole (123) opened on the active sliding sleeve (120) and located in the first spiral slide rail (121), and a second positioning hole (124) opened on the active sliding sleeve (120) and located in the second spiral slide rail (122). The first positioning hole (123) and the second positioning hole (124) are symmetrically arranged.

4. The video laryngoscope according to claim 2, characterized in that: The first sliding column (141) has a first groove at the end opposite to the sliding core tube (140), and a first spring ball is provided in the first groove; the second sliding column (142) has a second groove at the end opposite to the sliding core tube (140), and a second spring ball is provided in the second groove.

5. The video laryngoscope according to claim 1, characterized in that: The end of the flexible tube (70) away from the laryngoscope handle (60) is connected to a lens mount (71). The lens mount (71) is provided with a viewing lens (72) and a lighting lamp (73). The lens mount (71) is provided with a boss (74) that separates the viewing lens (72) and the lighting lamp (73).

6. The video laryngoscope according to claim 5, characterized in that: The laryngeal blade (50) has a groove (54) that matches the boss (74).

7. The video laryngoscope according to claim 1, characterized in that: The first handle base (80) is connected to a display screen module (85), and the communication interface of the display screen module (85) is magnetically connected to the communication interface of the first handle base (80).

8. The video laryngoscope according to claim 1, characterized in that: The first handle seat (80) is provided with a symmetrical first locking post (81) and a second locking post (82). The first end of the laryngeal lens (50) is provided with a fastening element (51). There is a gap (52) between the fastening element (51) and the first end of the laryngeal lens (50). The fastening element (51) is provided with a matching groove (53) for the first locking post (81) and the second locking post (82).

9. The video laryngoscope according to claim 1, characterized in that: The laryngeal blade (50) is a disposable laryngeal blade (50).

10. The video laryngoscope according to claim 1, characterized in that: The laryngeal blade (50) is provided with a metal reinforcing plate (55), and the metal reinforcing plate (55) and the laryngeal blade (50) are integrally formed.

Images