An adjustable visual laryngoscope

CN224925138UActive Publication Date: 2026-11-03THE THIRD PEOPLES HOSPITAL OF CHENGDU
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Patent Information

Application Number
CN202520340408.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-11-03
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing visualization laryngoscopes are prone to causing teeth to loosen or fall out during use, especially for patients with loose teeth, as the fixed part contacts the teeth, causing problems.

Method used

An adjustable video laryngoscope was designed, which uses a first air bladder on the fixed part to expand and abut against the mouth, combined with a second air bladder to support the position of the laryngoscope and avoid direct contact with the teeth. The expansion and contraction of the air bladder is controlled by an inflation device and an air deflation tube. The flexible part can be adjusted in angle. It is equipped with a camera and a supplementary light. The handle contains a control device and a wireless signal transmitter.

Benefits of technology

It effectively keeps the laryngoscope in a stable position, preventing teeth from loosening or falling out, and provides flexible adjustment of the operating angle and clear image display to meet the needs of different patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of adjustable visual laryngoscope, belong to laryngoscope technical field, solve the problem that laryngoscope in prior art can be fixed with tooth as fixed point and lead to tooth loose or fall off.The utility model discloses a handle, the handle is connected with fixed part, fixed part is curvedly arranged away from the one end of handle, first air bag for expansion abutting in oral cavity is arranged on the fixed part, first air bag is connected with inflation pipe and deflation pipe, one-way valve is arranged in inflation pipe, inflation pipe is connected with inflation device, valve is arranged on deflation pipe.The first air bag on fixed part can abut in oral cavity after inflation expansion, to keep the position of laryngoscope unmoved, avoid fixed part contact tooth and cause tooth loose or fall off.
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Description

Technical Field

[0001] This invention belongs to the field of laryngoscope technology, specifically to an adjustable video laryngoscope. Background Technology

[0002] The visualization laryngoscope combines fiberoptic bronchoscope and beam-guided technology. A high-definition miniature camera at the tip captures images of the pharynx and larynx, transmitting them to an LCD screen. The operator can observe the position of the laryngoscope within the machine and the surrounding tissue structures on the screen, enabling precise intubation or examination procedures.

[0003] Existing visualization laryngoscopes are fixed in position by pressing the main body of the laryngoscope against the patient's teeth during use. Improper operation can cause the teeth to loosen, especially for some patients with loose teeth, which can easily lead to the teeth falling out during the operation. Therefore, it is necessary to design a visualization laryngoscope that does not use the teeth as a fixed point. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an adjustable video laryngoscope. The first air bladder on the fixed part can be inflated and placed against the oral cavity to keep the laryngoscope in place, thus preventing the fixed part from contacting the teeth and causing them to loosen or fall out.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An adjustable video laryngoscope includes a handle with a fixing part connected to the handle. The fixing part is bent at one end away from the handle. A first air bladder for inflating and pressing against the oral cavity is provided on the fixing part. The first air bladder is connected to an inflation tube and a deflation tube. A one-way valve is provided in the inflation tube, and an inflation device is connected to the inflation tube. A valve is provided on the deflation tube.

[0007] Preferably, there are two first airbags, and the two first airbags are arranged vertically on both sides of the fixing part.

[0008] Preferably, the fixing part is provided with a second airbag for expanding and abutting against the upper jaw, and the second airbag is also connected to an inflation tube and an deflation tube.

[0009] Preferably, the fixed part is provided with a flexible part with an adjustable deflection angle at the end away from the handle, the flexible part is provided with a camera and a fill light, the handle is provided with a control device for controlling the deflection of the flexible part, and the handle is provided with a display screen electrically connected to the camera.

[0010] Preferably, the handle is provided with a wireless signal transmitter that is electrically connected to the camera.

[0011] Preferably, the display screen is connected to the handle via a rotary joint.

[0012] Preferably, both the fixing part and the flexible part are provided with a hollow structure, and the fixing part is provided with a tube inlet.

[0013] Preferably, the fixed part and the flexible part are provided with a suction tube, which is connected to the end of the flexible part.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] The first air bladder on the fixed part can be placed against the oral cavity after inflation to keep the laryngoscope in place and prevent the fixed part from contacting the teeth, which could cause the teeth to loosen or fall out. 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 A cross-sectional structural schematic diagram provided for an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the venting pipe and the inflation pipe provided in an embodiment of the present utility model.

[0019] Reference numerals: 1-Display screen; 2-Handle; 3-Rotary joint; 4-Charging joint; 5-Wireless signal transmitter; 6-Control knob; 7-Control device; 8-Insertion port; 9-Suction tube; 10-First airbag; 11-Second airbag; 12-Fixing part; 13-Flexible part; 14-Camera; 15-Fill light; 16-Battery; 17-Inflation tube; 18-Inflation device; 19-Valve; 20-One-way valve; 21-Deflator tube. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear 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 commonly used when the product is in 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] The following is combined with Figure 1 and Figure 2 This utility model will be described in detail.

[0024] Example

[0025] An adjustable video laryngoscope includes a handle 2, a fixing part 12 connected to the handle 2, the fixing part 12 being bent at one end away from the handle 2, a first airbag 10 for inflating and pressing against the oral cavity provided on the fixing part 12, the first airbag 10 being connected to an inflation tube 17 and a deflation tube 21, a one-way valve 20 being provided in the inflation tube 17, an inflation device 18 being connected to the inflation tube 17, and a valve 19 being provided on the deflation tube 21.

[0026] Once the laryngoscope is inserted into the patient's larynx, the inflation device 18 is activated. The inflation device 18 inflates the first air bladder 10 through the inflation tube 17, causing the first air bladder 10 to expand and come into contact with the patient's mouth. The one-way valve 20 only allows gas to flow from the inflation device 18 to the first air bladder 10, thus keeping the first air bladder 10 inflated even after the inflation device 18 stops operating. When it is necessary to deflate and remove the laryngoscope, medical personnel simply need to open valve 19, which can be replaced with a threaded sealing plug.

[0027] Two first airbags 10 are provided, and the two first airbags 10 are arranged vertically on both sides of the fixing part 12. After the two first airbags 10 are inflated, they abut against the upper and lower jaws respectively, thereby fixing the position of the laryngoscope. The two first airbags 10 can also be replaced by a single ring-shaped airbag.

[0028] The fixing part 12 is provided with a second airbag 11 for inflating and abutting against the palate. The second airbag 11 is also connected to an inflation tube 17 and a deflation tube 21. The second airbag 11 is inflated by an inflation device 18 and deflated by a deflation tube 21. After inflating, the second airbag 11 can support the laryngoscope and, together with the first airbag 10, keep the laryngoscope in the correct orientation, thereby facilitating the subsequent insertion of the intubation tube.

[0029] The inflation tube 17 can be set inside or on the outer surface of the fixing part 12. The inflation tube 17 is connected to the inflation device 18 outside the laryngoscope to control the inflation of the air bag; or a miniaturized inflation device 18 can be directly installed in the handle 2.

[0030] A flexible section 13 with adjustable deflection angle is provided at the end of the fixed part 12 away from the handle 2. A camera 14 and a supplementary light 15 are mounted on the flexible section 13. A control device 7 for controlling the deflection of the flexible section 13 is provided in the handle 2, and a display screen 1 electrically connected to the camera 14 is provided on the handle 2. A control knob 6 located outside the handle 2 is provided on the control device 7. Medical personnel can rotate the control knob 6 in both directions to retract the relevant angle adjustment wire (not shown in the figure), thereby controlling the angle adjustment of the flexible section 13. This process is existing technology and can be referenced to the deflection control structure and related processes of fiber optic endoscope lenses; therefore, it will not be described in detail here. After the flexible section 13 is adjusted, the camera 14 and the supplementary light 15 can be better aimed at the larynx.

[0031] The handle 2 is equipped with a wireless signal transmitter 5 that is electrically connected to the camera 14. The handle 2 is also equipped with a controller, which transmits the signal generated by the camera 14 to the wireless signal transmitter 5, and then transmits it to an electronic device outside the laryngoscope, such as a projector or mobile phone, so that others can watch and teach.

[0032] The handle 2 also contains a battery 16 to provide power to the electrical appliances; the battery 16 is connected to a charging connector 4.

[0033] The display screen 1 is connected to the handle 2 via a rotary joint 3. The display screen 1 can be rotated to adjust its angle for easy viewing by medical personnel. A friction pad is provided between the two opposing rotating contact surfaces of the rotary joint 3 to create damped rotation, ensuring that the display screen 1 remains stationary in the absence of external force.

[0034] Both the fixing part 12 and the flexible part 13 are provided with hollow structures, and the fixing part 12 is provided with a cannula inlet 8. The cannula inlet 8 is used to insert the cannula. After passing through the fixing part 12 and the flexible part 13, the cannula extends out from the front end of the flexible part 13 and enters the throat.

[0035] A suction tube 9 is provided in the fixed part 12 and the flexible part 13, and the suction tube 9 is connected to the end of the flexible part 13. The suction tube 9 is connected to a suction device (not shown in the figure) located outside the laryngoscope. The suction tube 9 can suction body fluid in the larynx to avoid the body fluid from affecting the image acquisition of the camera 14.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable video laryngoscope, comprising a handle (2), wherein a fixing part (12) is connected to the handle (2), and the end of the fixing part (12) away from the handle (2) is bent, characterized in that, The fixing part (12) is provided with a first airbag (10) for inflating and abutting against the oral cavity. The first airbag (10) is connected to an inflation tube (17) and an air deflation tube (21). A one-way valve (20) is provided in the inflation tube (17). An inflation device (18) is connected to the inflation tube (17). A valve (19) is provided on the air deflation tube (21).

2. The adjustable video laryngoscope according to claim 1, characterized in that, There are two first airbags (10), and the two first airbags (10) are arranged vertically on both sides of the fixing part (12).

3. The adjustable video laryngoscope according to claim 1, characterized in that, The fixing part (12) is provided with a second airbag (11) for expanding to abut against the upper jaw. The second airbag (11) is also connected to an inflation tube (17) and an deflation tube (21).

4. The adjustable video laryngoscope according to claim 1, characterized in that, The fixed part (12) is provided with a flexible part (13) with an adjustable deflection angle at one end away from the handle (2). A camera (14) and a fill light (15) are provided on the flexible part (13). A control device (7) for controlling the deflection of the flexible part (13) is provided in the handle (2). A display screen (1) electrically connected to the camera (14) is provided on the handle (2).

5. An adjustable video laryngoscope according to claim 4, characterized in that, The handle (2) is equipped with a wireless signal transmitter (5) that is electrically connected to the camera (14).

6. An adjustable video laryngoscope according to claim 4, characterized in that, The display screen (1) is connected to the handle (2) via a rotary joint (3).

7. An adjustable video laryngoscope according to claim 4, characterized in that, Both the fixed part (12) and the flexible part (13) are provided with hollow structures, and the fixed part (12) is provided with a tube inlet (8).

8. An adjustable video laryngoscope according to claim 4, characterized in that, A suction tube (9) is provided in the fixed part (12) and the flexible part (13), and the suction tube (9) is connected to the end of the flexible part (13).