A visual laryngoscope

Abstract

A visual laryngoscope comprises a display unit with a main control panel, a handheld shell arranged at one end of the display unit, an insertion unit arranged at one end of the handheld shell, an installation cavity arranged inside one end of the insertion unit and having a camera, a heat light source arranged around the inner wall of the installation cavity, a protective lens plugged into one end of the installation cavity, and a laryngoscope lens detachably sleeved on the insertion unit; wherein the camera and the heat light source are both connected to the main control panel by wires, the camera is used to obtain a laryngeal cavity image and feed it back to the display unit, the main control panel controls the heat light source to illuminate the laryngeal cavity and emit heat in the installation cavity to heat the protective lens; the utility model effectively improves the clarity of an intraoral video laryngoscope, timely exposes the glottis to insert a tracheal tube, timely improves ventilation, and also avoids repeated intubation leading to bleeding and edema of the oral and pharyngeal regions and laryngeal edema.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a visual laryngoscope. Background Art

[0002] Video laryngoscope is a medical device that uses advanced optical technology. It is mainly used in the process of tracheal intubation, allowing the operator to intuitively see the patient's laryngeal structure, thereby improving the accuracy and success rate of intubation. The video laryngoscope presents real-time images of the larynx to the operator through a built-in camera and display screen, helping them to more clearly identify the glottis and other related structures, especially showing significant advantages in difficult airway management. However, although the video laryngoscope brings many conveniences in endotracheal intubation, during the rescue process, the patient often breathes rapidly and irregularly, which causes the temperature and humidity conditions in the oral cavity to change dramatically. When the video laryngoscope enters the oral cavity, the surface of the lens is easily affected by the hot and humid air in the oral cavity and quickly condenses into mist, resulting in blurred vision. The blurred vision has a serious impact on the exposure of the glottis and the insertion of the catheter. Since the laryngeal structure cannot be clearly seen, it is difficult for the operator to accurately judge the position and size of the glottis, thereby prolonging the time for the catheter to be inserted into the glottis, which not only increases the difficulty of the operation, but may also lead to repeated intubation. Repeated intubation not only increases the patient's pain, but also may cause a series of complications. For example, hemorrhagic edema and laryngeal edema in the oral pharynx are common complications. These complications not only further aggravate the patient's breathing difficulties, but may also lead to intubation failure, making the rescue work difficult.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a visual laryngoscope which can effectively solve the above technical problems.

[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0006] A visual laryngoscope, characterized in that it comprises a display unit with a main control panel, a hand-held shell arranged at one end of the display unit, an insertion unit arranged at one end of the hand-held shell, a mounting cavity provided inside one end of the insertion unit and having a camera, a heat light source arranged around the inner wall of the mounting cavity, a protective lens plugged into one end of the mounting cavity, and a laryngoscope blade detachably mounted on the insertion unit;

[0007] The camera and the heat light source are both connected to the main control board by wires. The camera is used to obtain the laryngeal cavity image and feed it back to the display. The main control board controls the heat light source to illuminate the laryngeal cavity and emit heat in the installation cavity to heat the protective lens.

[0008] Furthermore, the insertion member also includes an assembly cavity arranged therein, and a plurality of heating resistors evenly laid in the assembly cavity. The cross-sectional shape of the assembly cavity is annular, and the plurality of heating resistors are all connected to the main control board wires.

[0009] Furthermore, the heat emitted by the heating resistor ranges from 0°C to 40°C.

[0010] Furthermore, a guide rail groove is provided on one side of the insertion piece, the interior of the laryngoscope blade is used for a connecting groove for plugging into the insertion piece, and a guide rail for plugging into the guide rail groove is provided inside the connecting groove; wherein, the insertion piece is made of steel metal, the laryngoscope blade is made of plastic, and the cross-sectional shape of the insertion piece is a curved surface.

[0011] Furthermore, a protrusion is provided on one side of the insertion piece, an extension arm is provided on one side of the laryngoscope blade, and a groove for engaging with the protrusion is provided on the extension arm; wherein, a slope is provided on one end of the protrusion close to the protective lens.

[0012] Furthermore, the outer surface of the assembly cavity is provided with a heat insulation coating.

[0013] Furthermore, the handheld shell includes a battery pack arranged in its inner cavity, a temperature control button and a main control switch arranged on one side of the handheld shell and connected to the main control board by wires, and the main control board is connected to the battery pack by wires.

[0014] Furthermore, the material of the handheld shell is plastic, and the outer surface of the handheld shell is paved with a rubber anti-slip layer.

[0015] Furthermore, the thermal light source is a tungsten halogen lamp.

[0016] Furthermore, the display component is movably connected to the handheld shell.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model effectively improves the clarity of the video laryngoscope entering the mouth by arranging a heat light source and a heating resistor, timely exposes the glottis to insert a tracheal tube, improves ventilation in time, and also avoids repeated intubation leading to bleeding and edema of the oral and pharyngeal parts and laryngeal edema. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 It is a three-dimensional diagram of the utility model.

[0020] Figure 2 It is the first cross-sectional view of the present utility model.

[0021] Figure 3 It is an exploded view of the utility model.

[0022] Figure 4 It is the second cross-sectional view of the present utility model.

[0023] Figure 5 It is the third cross-sectional view of the present utility model.

[0024] In the figure: 1. display part; 2. handheld shell; 3. insertion part; 4. camera; 5. installation cavity; 6. protective lens; 7. laryngoscope blade; 8. main control board; 9. heat light source; 10. assembly cavity; 11. bump; 12. groove; 14. battery pack; 15. temperature control button; 16. main control switch; 17. rubber anti-skid layer; 18. connection groove; 19. guide rail; 20. guide rail groove; 21. heating resistor; 22. extension arm. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0026] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] like Figures 1 to 5As shown, a visual laryngoscope comprises a display part 1 with a main control board 8, a handheld shell 2 arranged at one end of the display part 1, an insertion part 3 arranged at one end of the handheld shell 2, an installation cavity 5 arranged inside one end of the insertion part 3 and having a camera 4, a heat light source 9 arranged around the inner wall of the installation cavity 5, a protective lens 6 plugged into one end of the installation cavity 5, and a laryngoscope blade 7 detachably mounted on the insertion part 3; wherein the camera 4 and the heat light source 9 are both connected to the main control board 8 by wires, the camera 4 is used to obtain a laryngeal cavity image and feed it back to the display part 1, and the main control board 8 controls the heat light source 9 to illuminate the laryngeal cavity and dissipate heat in the installation cavity 5 to heat the protective lens 6.

[0028] Specifically, the heat light source 9 is a halogen tungsten lamp, and the cross-sectional shape of the insertion member 3 is a curved surface. In the present embodiment, the heat light source 9 is arranged in a ring shape around the camera 4, and the light of the heat light source 9 is directly irradiated on the protective lens 6 to prevent the glare of the camera 4 caused by the scattering of the light of the heat light source 9. It is worth noting that the halogen tungsten lamp has the characteristics of small size, high light efficiency and strong brightness. Its color temperature is relatively low, about between 2500K-3200K, and its color rendering is good. By setting the halogen tungsten lamp, on the one hand, the metal tungsten filament is electrically heated to maintain a stable output of heat energy and light energy for a long time, and visible light is emitted at high temperature, so that the lighting capacity is ensured while allowing the installation cavity 5 to have heat energy. The heat energy eliminates the fogging of the protective lens 6 caused by the patient's own irregular breathing entering the mouth during actual use, effectively improves the clarity of the visual laryngoscope entering the mouth, timely exposes the glottis to insert the tracheal tube, and timely improves ventilation. Moreover, since the cross-sectional shape of the insertion member 3 is a curved surface, it can avoid bleeding and edema of the oral and pharyngeal parts and laryngeal edema caused by intubation.

[0029] like Figures 1 to 5As shown, the material of the insertion member 3 is steel metal, and the insertion member 3 also includes an assembly cavity 10 arranged inside it, and a plurality of heating resistors 21 evenly laid in the assembly cavity 10. The cross-sectional shape of the assembly cavity 10 is annular, and the plurality of heating resistors 21 are all connected to the main control board 8 by wires, and the heat emitted by the heating resistors 21 ranges from 0°C to 40°C; in this embodiment, the assembly cavity 10 is a closed cavity, and the plurality of heating resistors 21 are evenly laid in the assembly cavity 10. The main control board 8 is used to control the plurality of heating resistors 21 to generate heat energy. The heat energy generated by the heating resistors 21 can be accumulated through the closed assembly cavity 10, which effectively prevents the heat energy from being emitted too quickly. Based on the thermal conductivity of the steel metal material of the insertion member 3 and the heating resistors 21 cooperate with each other so that the heat accumulated in the assembly cavity 10 can be transferred to the insertion piece 3 and heat the insertion piece 3. In actual use, the laryngoscope blade 7 is mounted on the insertion piece 3, and the heat is transferred from the insertion piece 3 to the laryngoscope blade 7 to heat the laryngoscope blade 7. By heating the laryngoscope blade 7, the patient's use experience can be effectively enhanced, and the laryngoscope blade 7 can be prevented from entering the throat at a low temperature and affecting the user's use experience. It is worth noting that the outer surface of the assembly cavity 10 is provided with a thermal insulation coating. The thermal insulation coating can reduce the heat energy diffusion rate on the one hand to ensure the heating effect of the insertion piece 3, and on the other hand, it can prevent heat from directly diffusing to the inner cavity of the insertion piece 3 to avoid affecting the normal use of the electronic components in the inner cavity of the insertion piece 3.

[0030] like Figures 1 to 5 As shown, a guide groove 20 is provided on one side of the insertion piece 3, a connecting groove 18 is provided inside the laryngoscope blade 7 for plugging with the insertion piece 3, and a guide rail for plugging with the guide groove 20 is provided in the connecting groove 18, a convex block 11 is provided on one side of the insertion piece 3, the laryngoscope blade 7 is made of plastic, an extension arm 22 is provided on one side of the laryngoscope blade 7, and a groove 12 for engaging with the convex block 11 is provided on the extension arm 22; wherein, an inclined surface is provided at one end of the convex block 11 close to the protective lens 6; in this embodiment, the laryngoscope blade 7 is a disposable laryngoscope blade, and the laryngoscope blade 7 is detachably connected to the insertion piece 3, and the laryngoscope blade 7 is based on plastic. The material has elasticity and deformation capabilities due to its characteristics. Two guide rails 19 are provided, and the two guide rails 19 are respectively provided on both sides of the inner wall of the connecting groove 18 and are parallel to each other. Two guide rail grooves 20 are also provided, and the two guide rail grooves 20 are respectively provided on both sides of the insertion piece 3 and are parallel to each other. During specific use, the laryngoscope blade 7 is inserted into the insertion piece 3 along the guide rail groove 20, and the protrusion 11 and the groove 12 are mutually engaged through the extension arm 22, thereby fixing the connection structure between the laryngoscope blade 7 and the insertion piece 3, effectively preventing the laryngoscope blade 7 from falling off the insertion piece 3, and improving the safety of this embodiment when used.

[0031] like Figure 1As shown in the figure, the handheld shell 2 includes a battery pack 14 arranged in its inner cavity, a temperature control button 15 and a main control switch 16 arranged on one side of the handheld shell 2 and connected to the main control board 8 by wires, and the main control board 8 is connected to the battery pack 14 by wires; in this embodiment, the battery pack 14 is used to supply electrical energy to all electronic components in this embodiment, and there are two temperature control buttons 15, which include a temperature control up button and a temperature control down button. The temperature control button 15 is used to control and adjust the amount of heat energy emitted by the heating resistor 21 for user convenience, and the main control switch 16 is used to control the power supply and power off of the battery pack 14; in actual use, the user turns on the present embodiment through the main control switch 16, and uses the temperature control button 15 to adjust the heat emitted by the heating resistor 21 to heat the laryngoscope blade 7 and the insertion piece 3, and then puts the insertion piece 3 into the patient's mouth, and inserts the insertion piece 3 into the patient's laryngeal cavity by observing the image obtained by the display piece 1, and the camera 4 obtains the laryngeal cavity state and feeds back to the display screen.

[0032] like Figures 1 to 5 As shown, the display component 1 is movably connected to the handheld shell 2. The material of the handheld shell 2 is plastic, and the outer surface of the handheld shell 2 is paved with a rubber anti-skid layer 17. In this embodiment, the display component 1 can be swung upward or downward on the handheld shell 2, which is convenient for medical staff to adjust the position of the display component 1 and observe the state of the laryngeal cavity. The rubber anti-skid layer 17 is provided with anti-skid textures, which makes it convenient for doctors to hold it in their hands.

[0033] Working principle: After pressing the main control switch 16 to turn on this embodiment, press the temperature control button 15 to adjust the heat emitted by the heating resistor 21 to heat the laryngoscope blade 7 and the insertion piece 3, and then put the insertion piece 3 into the patient's laryngeal cavity, and the camera 4 obtains the laryngeal cavity status and feeds back to the display piece 1.

[0034] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A visual laryngoscope, characterized in that: The invention comprises a display unit (1) with a main control panel (8), a hand-held shell (2) arranged at one end of the display unit (1), an insertion unit (3) arranged at one end of the hand-held shell (2), a mounting cavity (5) arranged inside one end of the insertion unit (3) and having a camera (4), a heat light source (9) arranged around the inner wall of the mounting cavity (5), a protective lens (6) plugged into one end of the mounting cavity (5), and a laryngoscope blade (7) detachably mounted on the insertion unit (3); The camera (4) and the heat light source (9) are both connected to the main control board (8) by wires. The camera (4) is used to obtain a laryngeal cavity image and feed it back to the display unit (1). The main control board (8) controls the heat light source (9) to illuminate the laryngeal cavity and to emit heat in the installation cavity (5) to heat the protective lens (6).

2. A video laryngoscope according to claim 1, characterized in that: The insertion member (3) further comprises an assembly cavity (10) arranged therein, and a plurality of heating resistors (21) evenly laid in the assembly cavity (10); the cross-sectional shape of the assembly cavity (10) is annular, and the plurality of heating resistors (21) are all connected to the main control board (8) by wires.

3. A video laryngoscope as claimed in claim 2, characterized in that: The heat emitted by the heating resistor (21) ranges from 0°C to 40°C.

4. A video laryngoscope as claimed in claim 3, characterized in that: A guide rail groove (20) is provided on one side of the insertion piece (3), a connecting groove (18) is provided inside the laryngoscope blade (7) for plugging into the insertion piece (3), and a guide rail (19) is provided inside the connecting groove (18) for plugging into the guide rail groove (20); wherein the insertion piece (3) is made of steel metal, the laryngoscope blade (7) is made of plastic, and the cross-section of the insertion piece (3) is a curved surface.

5. A video laryngoscope as claimed in claim 4, characterized in that: A protrusion (11) is provided on one side of the insertion member (3), and an extension arm (22) is provided on one side of the laryngoscope blade (7). The extension arm (22) is provided with a groove (12) for engaging with the protrusion (11); wherein an end of the protrusion (11) close to the protective lens (6) is provided with an inclined surface.

6. A video laryngoscope according to claim 5, characterized in that: The outer surface of the assembly cavity (10) is provided with a heat insulation coating.

7. A video laryngoscope according to claim 6, characterized in that: The handheld shell (2) comprises a battery pack (14) arranged in its inner cavity, a temperature control button (15) and a main control switch (16) arranged on one side of the handheld shell (2) and connected to a main control board (8) by wires, and the main control board (8) is connected to the battery pack (14) by wires.

8. A video laryngoscope as claimed in claim 1, characterized in that: The material of the handheld shell (2) is plastic, and the outer surface of the handheld shell (2) is paved with a rubber anti-slip layer (17).

9. A video laryngoscope as claimed in claim 1, characterized in that: The heat light source (9) is a tungsten halogen lamp.

10. A video laryngoscope according to claim 1, characterized in that: The display element (1) is movably connected to the handheld shell (2).

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