Visible laryngoscope system

Abstract

The present invention provides a visible laryngoscope system, a visible laryngoscope, and fully-wrapped laryngoscope blades of different specifications. Each of the laryngoscope blades comprises a gripping part, a bending part, and a tongue pressing part. The visible laryngoscope comprises a head end part, a soft tube, a hard tube, and a display screen; the head end part, the soft tube, the hard tube, and the display screen are sequentially connected from bottom to top; a first channel is formed in the gripping part, and a second channel extending in an arc shape is formed in the bending part; the second channel is in communication with the first channel to form a channel allowing the visible laryngoscope to be inserted and placed; and the soft tube of the visible laryngoscope can bend to adjust the length of the soft tube in an arc-shaped passageway, and the length of the hard tube is not greater than the extension length of the gripping part of the laryngoscope blade of the maximum specification. Thus, the cooperation between the hard tube and the gripping parts of laryngoscope blades of different specifications in an insertion / retraction manner is ensured.

Description

A visual laryngoscope system Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a full-cover laryngoscope blade, a visual laryngoscope and a visual laryngoscope system. Background Art

[0002] The use of a video laryngoscope in conjunction with a disposable all-inclusive laryngoscope blade can prevent cross infection. The existing video laryngoscope and all-inclusive laryngoscope blade models or specifications are one-to-one, and the video laryngoscope and all-inclusive laryngoscope blade models need to be used one-to-one, which is inconvenient to carry and has a high user investment cost. At the same time, when doctors examine different patients, they will waste time selecting the handle and the matching all-inclusive laryngoscope blade, thereby reducing medical efficiency, and the all-inclusive laryngoscope blade is wasted due to unsuccessful matching.

[0003] The prior art attempts to design the handle of the video laryngoscope into a retractable form so that it can be compressed and shortened in the full-cover laryngoscope blade to ensure that it is compatible with different models of full-cover laryngoscope blades, that is, the full-cover laryngoscope blades still use the existing full-cover laryngoscope blades. However, this adaptation method causes the handle to be compressed too much, which eventually damages the connecting cable, resulting in poor signal connection and degradation of the visual effect. In addition, since the models of full-cover laryngoscope blades for different signals vary greatly, when the video laryngoscope is adapted to small-sized laryngoscope blades, it will cause excessive pushing resistance, and the telescopic tube will generate a large reset force. It is difficult to fit the camera with the observation window at the head end of the full-cover laryngoscope blade simply by adjusting the size of the handle of the video laryngoscope. Summary of the Invention

[0004] The present invention provides a visual laryngoscope system, which includes a visual laryngoscope and different types of full-cover laryngoscope blades, the full-cover laryngoscope blades all including a gripping portion, a bending portion and a tongue depressing portion, the visual laryngoscope is pluggable and connected to the full-cover laryngoscope blade, the visual laryngoscope includes a head end, a soft tube, a hard tube and a display screen, the head end, the soft tube, the hard tube and the display screen are connected in sequence from bottom to top, the head end is embedded with a camera, the hard tube has a built-in power supply, the hard tube and the soft tube are connected with a connecting cable connected to the camera, the gripping portion has a first channel, the bending portion has a second channel extending in an arc shape, the second channel is connected to the first channel to form a power supply Looking at the channel for inserting the laryngoscope, the total length of the channels of different models of full-cover laryngoscope blades is the same, and the second channels of the different models of full-cover laryngoscope blades have different arc lengths; the extension lengths of the bending portions of the different models of full-cover laryngoscope blades are different, and the distal ends of the bending portions are sealed by transparent observation windows; the hard tube has a first length, and the head end portion and the soft tube have a naturally extended second length, and the soft tube can be bent to adjust its length in the channel, the first length is not greater than the extension length of the first channel of the largest model of full-cover laryngoscope blade, and the second length is greater than or equal to the extension length of the second channel of the largest model of full-cover laryngoscope blade, the end face of the head end portion forms an inclined surface, and the long side direction of the inclined surface constitutes a pushing fulcrum.

[0005] In some embodiments, the inclined surface extends downward from the proximal side toward the distal side, and the long side of the inclined surface is in close contact with the lower side of the observation window.

[0006] In some embodiments, the bevel angle is 1-10°.

[0007] In some embodiments, the head end portion forms a left oblique surface and a right oblique surface along the left-right direction.

[0008] In some embodiments, the second length does not exceed 115% of the extended length of the second channel of the smallest full-cover laryngoscope blade. Preferably, the second length is 105% of the extended length of the second channel of the curved portion of the largest full-cover laryngoscope blade.

[0009] In some embodiments, the cross-section of the head end portion and the observation window is rectangular.

[0010] In some embodiments, the gripping portion and the hard tube are pluggably matched via a snap-fit ​​structure.

[0011] In some embodiments, the snap-fit ​​structure is realized by the following structure: a snap-fit ​​groove is formed on the inner wall of the gripping portion, and an elastic protrusion matching the snap-fit ​​groove is formed on the outer wall of the hard tube.

[0012] In some embodiments, the grip portion has a flared opening, and the periphery of the flared opening forms a rib facing outward.

[0013] The present invention further provides the aforementioned video laryngoscope, which is compatible with various models of full-cover laryngoscope blades.

[0014] The present invention further provides the aforementioned fully enclosed laryngoscope blade.

[0015] The video laryngoscope system provided by the present invention can use the same video laryngoscope to adapt to different models of full-cover laryngoscope blades. The soft tube of the video laryngoscope can be bent to adjust its length in the arc-shaped cavity, and the length of the hard tube is not greater than the extended length of the gripping portion of the largest model of full-cover laryngoscope blade. In this way, the plug-in and pull-out cooperation of the hard tube and the gripping portions of different models of full-cover laryngoscope blades is ensured.

[0016] The extended length of the end of the visual laryngoscope lens and the soft tube provided by the new invention, that is, the second length is greater than or equal to the extended length of the second channel of the largest model full-enclosed laryngoscope blade, and the second length does not exceed 115% of the bending portion and the base of the smallest model full-enclosed laryngoscope blade. In this way, by extending the length of the bendable soft tube, it is ensured that the camera end reaches the observation window of different models of full-enclosed laryngoscope blades, and at the same time, it also avoids the technical problem of excessive pushing resistance or even exceeding the bending limit and poor signal caused by the overly long soft tube when the visual laryngoscope is adapted to a small model full-enclosed laryngoscope blade.

[0017] The end face of the visual laryngoscope lens provided by the present invention forms an inclined surface, and the long side direction of the inclined surface constitutes a pushing fulcrum to facilitate the pushing and bending of the soft tube, which is beneficial to the fitting of the head end camera and the observation window, and the camera is clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic diagram of the structures of three different types of full-cover laryngoscope blades;

[0019] FIG2 is a schematic structural diagram of a video laryngoscope provided by the present invention;

[0020] FIG3 is a schematic diagram of the coordination state of the video laryngoscope and the full-cover laryngoscope blade provided by the present invention;

[0021] FIG4 is a cross-sectional view of the video laryngoscope and the fully enclosed laryngoscope blade provided by the present invention in a coordinated state;

[0022] Figures 5 and 6 are schematic diagrams of the partial structure of the video laryngoscope provided by the present invention;

[0023] FIG7 is a schematic diagram showing the principle of the oblique insertion of the video laryngoscope provided by the present invention. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Referring to Figures 1-6, the present invention provides a video laryngoscope system comprising a video laryngoscope and various types of fully enclosed laryngoscope blades. Each of the fully enclosed laryngoscope blades comprises a grip 11, a bend 12, and a tongue depressor 13. The grip 11 is the handle portion of the fully enclosed laryngoscope blade, used by a doctor or operator to grip and control the laryngoscope insertion process. The bend transitions from the grip to the grip in an arc shape. The bend is located between the grip and the tongue depressor and extends in an arc shape, allowing the fully enclosed laryngoscope blade to adapt to the anatomical structure of the oral cavity and pharynx. The function of the bend is to help the fully enclosed laryngoscope blade pass smoothly through the oral cavity and pharynx and find the correct position for visual examination. The tongue depressor is located at the terminal end of the fully enclosed laryngoscope blade and is used to push the tongue and provide sufficient space for the doctor to observe the larynx and vocal cords. By placing the tongue depressor below the root of the tongue, the doctor can fully display the laryngeal structure, thereby enabling accurate examination and diagnosis. The gripping portion 11, the bending portion 12 and the tongue depressing portion 13 cooperate with each other, so that the full-coverage laryngoscope blade can achieve the purpose of visualizing the larynx in clinical applications, helping doctors to perform larynx examination, treatment or other related operations.

[0026] The video laryngoscope is pluggable and connected to the channel defined by the full-cover laryngoscope blade, wherein the grip portion 11 has a first channel, the curved portion 12 has a second channel extending in an arc shape, the dividing line between the second channel and the first channel is the arc intersection of the grip portion 11 and the curved portion 12, and the second channel is connected to the first channel to form a channel for inserting the video laryngoscope. Please refer to Figure 1. The total length of the channels of different models of full-cover laryngoscope blades is the same. The same total length here can be strictly equal or roughly equal. In this way, when different models are adapted to a universal video laryngoscope, the fit is stronger and the pushing and compression length of the video laryngoscope is not strong, thereby extending the service life of the video laryngoscope. The curved portion 12 of different models of full-cover laryngoscope blades has different extension lengths, that is, the second channels of different models of full-cover laryngoscope blades have different arc lengths. The distal end of the curved portion 12 is sealed by a transparent observation window 15 to prevent the video laryngoscope from contacting body fluids and causing contamination.

[0027] Please refer to Figure 2. The video laryngoscope includes a head end 21, a soft tube 22, a hard tube 23, a connecting seat 24 and a display screen 25. The head end, soft tube 22, hard tube 23 and connecting seat 24 are connected in sequence from bottom to top. The head end 21 is embedded with a camera and a light source. The hard tube 23 has a built-in power supply. The connecting cable between the camera and the light source passes through the soft tube 21 and the hard tube 22 to output the signal obtained by the camera. The hard tube 22 is supported in the channel of the grip 11, and the connecting seat 24 forms a slot 241 for plugging and unplugging the display screen 25.

[0028] In this embodiment, referring to FIG1 , the full-cover laryngoscope blade has three different sizes: small, medium, and large, to accommodate the oral cavity and pharynx of infants, children, and adults. Each of the small, medium, and large full-cover laryngoscope blades includes a grip portion 11 and a curved portion 12. The difference lies primarily in the different extension lengths of the curved portion 12, which is strictly controlled to accommodate different oral cavity shapes. The extension height of the grip portion 11 is not restricted, as long as it is capable of being gripped. Under this premise, if the grip portion 11 maintains uniform specifications while the curved portion 12 varies, the visual laryngoscope will need to be manufactured in different sizes to allow the camera to reach the observation window 15. This approach would result in high production and treatment costs. The reason is that the full-cover laryngoscope blade is a transparent plastic piece. As a disposable piece, different sizes do not result in excessive costs. However, manufacturing a visual laryngoscope in different sizes would increase costs and require doctors to identify and use it, which is inconvenient.

[0029] Based on this, referring to Figures 5 and 6 , this embodiment provides a single-size video laryngoscope that is compatible with different models of full-cover laryngoscope blades. To achieve this purpose, the soft tube 22 provided in this embodiment can be bent to adjust its length within the channel, that is, the soft tube 22 can be bent to shorten its extension path within the second channel. Since the large-size full-cover laryngoscope blade has a shorter grip 11 and a longer bending portion 12, and the small-size full-cover laryngoscope blade has a longer grip 11 and a shorter bending portion 12, the hard tube 23 has a first length. In order to prevent the hard tube 23 from being too long to enter the bending portion 12, the first length is not greater than (less than or equal to) the extension length of the first channel of the largest-size full-cover laryngoscope blade. In this way, the hard tube 23 can adapt to the shortest grip, and of course it can adapt to the longest grip 11. The head end 21 and the soft tube 22 have a second length of natural extension. The natural extension here refers to the longest length of the soft part without bending. Since the soft part is bendable, its length can be bent and compressed under the pushing action of the operator. The second length is greater than or equal to the extension length of the second channel of the largest model full-cover laryngoscope blade. In this way, the extension length of the soft tube and the head end is at least guaranteed to reach the observation window 15 of the largest model full-cover laryngoscope blade. It can be understood that when the visual laryngoscope is inserted into the smallest model full-cover laryngoscope blade, the length of the hard tube is less than the length of the first channel of the grip portion. In this way, the starting point of the soft tube extends from the first channel. In addition, considering the compression limit of the soft tube, the second length does not exceed 115% of the extension length of the second channel of the smallest model full-cover laryngoscope blade. Specifically, the extension length h of the head end and the soft tube is 105% of the extension length of the bending portion of the largest model full-cover laryngoscope blade. In this way, it is ensured that a single specification of visual laryngoscope can be applied to different models of full-cover laryngoscope blades by utilizing the bending compression of the soft tube.

[0030] Furthermore, since the angles of the curved portions of the full-cover laryngoscope blades of different specifications are different, the observation window of the full-cover laryngoscope blade cannot fit with the end face of the head end of the visual laryngoscope, causing unclear photography. Based on this, please refer to Figure 7, the end face of the visual laryngoscope blade end forms a slope 211, so that after the soft tube 22 and the head end 21 of the visual laryngoscope enter the curved portion 12, the long side direction of the slope constitutes a pushing fulcrum 100, and there is a space 101 with an angle between the short side of the slope and the observation window. Through the pushing action of the hose, the short side of the head end is squeezed to the observation window to meet the fitting of lenses at different angles.

[0031] In this embodiment, the inclined surface 211 extends downward from the proximal side toward the distal side, the long side of the inclined surface is in close contact with the lower side of the observation window, and the angle of the inclined surface is 1-10°.

[0032] The cross-sections of the head end portion and the observation window are rectangular, and the head end portion forms a left oblique surface and a right oblique surface along the left and right directions, so that the hose can be pushed forward more smoothly.

[0033] The handle portion and the hard tube are pluggably matched via a snap-fit ​​structure. In some embodiments, the snap-fit ​​structure is implemented by the following structure: the inner wall of the grip portion forms a slot, and the outer wall of the hard tube forms an elastic protrusion 231 that matches the slot.

[0034] The fully enclosed laryngoscope blade is an integrally formed transparent tube.

[0035] In some embodiments, the grip portion has a flared opening 111, the periphery of which forms an outwardly facing rib 112. This facilitates the doctor to quickly insert the video laryngoscope into the passage through the flared opening 111. Furthermore, the outwardly facing rib formed around the periphery of the flared opening prevents the doctor's hand from contacting the display screen due to misoperation or slippage, which could cause cross-infection.

[0036] The video laryngoscope system provided by the present invention can use the same video laryngoscope to adapt to different models of full-cover laryngoscope blades. The soft tube of the video laryngoscope can be bent to adjust its length in the arc-shaped cavity, and the length of the hard tube is not greater than the extended length of the gripping portion of the largest model of full-cover laryngoscope blade. In this way, the plug-in and pull-out cooperation of the hard tube and the gripping portions of different models of full-cover laryngoscope blades is ensured.

[0037] Exemplarily, the working process of the laryngoscope provided by the present invention is:

[0038] The present invention provides doctors with a video laryngoscope of the same specification; the present invention also provides doctors with full-cover laryngoscope blades of various specifications (such as large, medium, and small), which are disposable products;

[0039] During the procedure, the doctor simply selects the appropriate size of laryngoscope blade based on the patient's condition, then inserts the video laryngoscope into any size of laryngoscope blade to begin the treatment process. If the laryngoscope blade does not fit tightly against the tip of the video laryngoscope, the doctor pushes the soft tube of the video laryngoscope to bend it and adjust its length within the channel.

[0040] The second length of the end of the visual laryngoscope lens and the soft tube provided by the new invention is greater than or equal to the extended length of the second channel of the largest model full-enclosed laryngoscope blade, and the second length does not exceed 115% of the curved portion of the smallest model full-enclosed laryngoscope blade. In this way, by extending the length of the bendable soft tube, it is ensured that the camera end reaches the observation window of different models of full-enclosed laryngoscope blades, and at the same time, it also avoids the technical problem of excessive pushing resistance or even exceeding the bending limit and poor signal caused by the overly long soft tube when the visual laryngoscope is adapted to a small model full-enclosed laryngoscope blade.

[0041] The end face of the visual laryngoscope lens provided by the present invention forms an inclined surface, and the long side direction of the inclined surface constitutes a pushing fulcrum to facilitate the pushing and bending of the soft tube, which is beneficial to the fitting of the head end camera and the observation window, and the camera is clearer.

[0042] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A visual laryngoscope system, comprising a visual laryngoscope and different types of fully enclosed laryngoscope blades, wherein the fully enclosed laryngoscope blades each comprise a gripping portion, a bending portion and a tongue depressing portion, the visual laryngoscope is pluggably connected to the fully enclosed laryngoscope blade, the visual laryngoscope comprises a head portion, a soft tube, a hard tube and a display screen, the head portion, the soft tube, the hard tube and the display screen are sequentially connected from bottom to top, a camera is embedded in the head portion, a power supply is built into the hard tube, and a connecting cable connected to the camera runs through the hard tube and the soft tube; characterized in that, The gripping portion has a first channel therein, the bending portion has a second channel extending in an arc shape, the second channel is connected to the first channel to form a channel for inserting a visual laryngoscope, the total length of the channels of different models of full laryngoscope blades are the same, and the second channels of different models of full laryngoscope blades have different arc lengths; the extension lengths of the bending portions of different models of full laryngoscope blades are different, and the distal ends of the bending portions are sealed by transparent observation windows; the hard tube has a first length, the head end portion and the soft tube have a naturally extended second length, the soft tube can be bent to adjust its length in the channel, the first length is not greater than the extension length of the first channel of the largest model of full laryngoscope blade, the second length is greater than or equal to the extension length of the second channel of the largest model of full laryngoscope blade, the end face of the head end portion forms an inclined surface, and the long side direction of the inclined surface constitutes a pushing fulcrum.

2. The video laryngoscope system according to claim 1, characterized in that: The inclined surface extends downward from the proximal side toward the distal side, and the long side direction of the inclined surface is in close contact with the lower side of the observation window.

3. The video laryngoscope system according to claim 2, characterized in that: The angle of the bevel is 1-10°.

4. The video laryngoscope system according to claim 2, characterized in that: The head end forms a left inclined surface and a right inclined surface along the left-right direction.

5. The video laryngoscope system according to claim 1, characterized in that: The second length does not exceed 115% of the extended length of the second channel of the smallest model full-enclosed laryngoscope blade. Preferably, the second length is 105% of the extended length of the second channel of the curved portion of the largest model full-enclosed laryngoscope blade.

6. The video laryngoscope system according to claim 1, characterized in that: The cross-sections of the head end and the observation window are rectangular.

7. The video laryngoscope system according to claim 1, characterized in that: The gripping portion and the hard tube are pluggably matched via a snap-fit ​​structure.

8. The video laryngoscope system according to claim 1, characterized in that: The gripping portion has a flared opening, and the periphery of the flared opening forms a retaining edge facing outward.

9. A full-cover laryngoscope blade, characterized in that: The fully enclosed laryngoscope blade adopts the fully enclosed laryngoscope blade described in any one of claims 1 to 8.

10. A video laryngoscope, characterized in that: The video laryngoscope adopts the video laryngoscope described in any one of claims 1 to 8.

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