Anesthesia video laryngoscopy

By improving the structural design of the anesthesia video laryngoscope, including the frame, screen, circuit board, and buffer assembly, the problem of blind spots in laryngoscope observation under special anatomical structures has been solved, achieving more comprehensive visualization support and improving the reliability and stability of intubation operations.

CN224269276UActive Publication Date: 2026-05-26SHENZHEN JUNYUAN MEDICAL EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN JUNYUAN MEDICAL EQUIPMENT CO LTD
Filing Date
2025-04-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing anesthesia video laryngoscopes cannot fully observe the glottis and surrounding structures under special anatomical or pathological conditions, such as severe cervical spine deformities and large epiglottic cysts, increasing the difficulty of intubation.

Method used

An anesthesia video laryngoscope was designed, comprising components such as a frame, screen, circuit board, memory card, conductive foam, heat shrink tubing, connectors, and handle. Through multi-layer connection and buffer structure, it ensures stable observation of the patient's oral cavity and pharynx at different angles and positions, reducing blind spots.

Benefits of technology

It improves the applicability of laryngoscopes, enabling clear observation of the glottis and surrounding structures from different angles and positions, reducing blind spots, and enhancing visualization support for intubation procedures.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of medical device technology and discloses an anesthesia video laryngoscope, including a frame. A screen is installed on the inner side of the frame, and a circuit board is installed on the rear side of the frame. A memory card is disposed on the top wall of the circuit board and engages with the circuit board. A rear shell is fixedly connected to the rear side of the outer wall of the circuit board, and a rotating shaft is rotatably connected to the rear side of the outer wall of the rear shell. A plastic part is rotatably connected to the outer wall of the rotating shaft, and a connector is fixedly connected to the bottom wall of the plastic part. A heat shrink tubing is fixedly connected to the inner top wall of the connector. In this utility model, the light and lens at the bottom of the handle acquire images of the patient's oral cavity and pharynx. After preliminary processing by a second circuit board, the data is further processed by a first circuit board and displayed on the screen. It can adapt to the patient's body posture and anatomical structure at different angles and positions, allowing doctors to observe the surrounding structures more comprehensively and improving the applicability of the laryngoscope.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to anesthesia video laryngoscope. Background Technology

[0002] An anesthesia video laryngoscope is a medical device used to assist in endotracheal intubation during anesthesia. It mainly consists of a laryngoscope handle, laryngoscope blades, a camera, and a display screen. The camera transmits real-time images of the patient's oral cavity and pharynx to the display screen, allowing anesthesiologists to clearly observe the glottis and surrounding structures, thus enabling more accurate and safe endotracheal intubation.

[0003] A search revealed Chinese patent publication number CN108685558A, which discloses an anesthesia video laryngoscope comprising a human-computer interaction section, a main control section, and a power supply section. The human-computer interaction section includes a display device and control buttons, enabling interactive control between the operator and the laryngoscope. The main control section includes a camera assembly, a camera adjustment device, a processor, a storage device, a TF card, a WIFI module, and peripheral interfaces, enabling the display, storage, reception, and transmission of information, as well as cooperating with the human-computer interaction section to achieve corresponding functions. The power supply section includes a charging interface, a lithium battery, and a power supply circuit to power the laryngoscope. This invention has the advantages of simple structure, convenient use, safety and reliability, adjustable camera and light source, and anti-fogging high definition. However, in special anatomical structures or pathological conditions, such as severe cervical spine deformities and large epiglottic cysts, it is impossible to fully observe the glottis and surrounding structures through the video laryngoscope, thus increasing the difficulty of intubation. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an anesthesia video laryngoscope, which aims to improve the problem that insertion into the oral cavity in the prior art causes discomfort to patients.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an anesthesia video laryngoscope, including a frame, a screen mounted on the inner side of the frame, a circuit board one mounted on the rear side of the frame, a memory card disposed on the top wall of the circuit board one, the memory card engaging with the circuit board one, a rear shell fixedly connected to the rear side of the outer wall of the circuit board one, a rotating shaft rotatably connected to the rear side of the outer wall of the rear shell, a plastic part rotatably connected to the outer wall of the rotating shaft, a connector one fixedly connected to the bottom wall of the plastic part, and a connector one fixedly connected to the inner top wall of the connector one. A heat shrink tubing is attached, with a second connector fixedly connected to the bottom wall of the heat shrink tubing. A connector is installed on the bottom wall of the second connector, and a third connector is fixedly connected to the bottom wall of the connector. Springs are equidistantly installed on the outer wall of the third connector, and a pendant is provided on the bottom wall of the third connector. A female connector is fixedly connected to the bottom wall of the pendant, and a second circuit board is installed on the bottom wall of the female connector. A handle is fixedly connected to the bottom wall of the female connector, and the second circuit board is located inside the handle. A handle cover is provided on the rear side of the outer wall of the handle, and the handle cover engages with the handle.

[0006] As a further description of the above technical solution:

[0007] The battery is installed on the inner wall of the rear shell.

[0008] As a further description of the above technical solution:

[0009] Conductive foam is installed on the upper middle part of the rear side of the outer wall of the circuit board, and multiple soft rubber parts are fixedly connected at equal intervals on the upper middle part of the rear side of the outer wall of the circuit board.

[0010] As a further description of the above technical solution:

[0011] A dust cover is installed on the right side of the outer wall of the rear shell.

[0012] As a further description of the above technical solution:

[0013] Multiple buttons are equidistantly installed on the top wall of the rear shell, and an indicator light is fixedly connected to the left side of the outer wall of the rear shell.

[0014] As a further description of the above technical solution:

[0015] A rubber sheet is installed on the top wall of the first connector, and multiple gaskets are fixedly connected at equal intervals on the bottom wall of the first connector.

[0016] As a further description of the above technical solution:

[0017] Bolts are threaded at all four corners of the top wall of the aviation insertion tube.

[0018] As a further description of the above technical solution:

[0019] A keycap is installed on the front side of the outer wall of the handle, and a magnetic ring is installed inside the handle.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, the light and lens at the bottom of the handle capture images of the patient's oral cavity and pharynx. After preliminary processing by circuit board two, the data is transmitted to circuit board one through a series of connecting components. Circuit board one further processes the data and displays it on the screen, so that doctors can clearly observe the condition of the patient's oral cavity and pharynx. It can also better adapt to the patient's body posture and anatomical structure at different angles and positions, enabling doctors to observe the glottis and surrounding structures more comprehensively, reducing blind spots and improving the applicability of the laryngoscope. Attached Figure Description

[0022] Figure 1 This is a front view of the anesthesia video laryngoscope proposed in this utility model;

[0023] Figure 2 This is a right view of the anesthesia video laryngoscope proposed in this utility model;

[0024] Figure 3 This is a top view of the anesthesia video laryngoscope proposed in this utility model;

[0025] Figure 4 This is a partial structural breakdown diagram of the anesthesia video laryngoscope proposed in this utility model;

[0026] Figure 5 This is an exploded view of the anesthesia video laryngoscope proposed in this utility model.

[0027] Legend:

[0028] 1. Screen; 2. Frame; 3. Circuit Board 1; 4. Battery; 5. Memory Card; 6. Conductive Foam; 7. Soft Rubber Parts; 8. Back Cover; 9. Dust Cover; 10. Buttons; 11. Indicator Lights; 12. Plastic Parts; 13. Hinge; 14. Rubber Sheet; 15. Connector 1; 16. Heat Shrink Tube; 17. Gasket; 18. Connector 2; 19. Connector; 20. Spring; 21. Connector 3; 22. Bolt; 23. Airplane Insert Crimping Tube; 24. Female Plug; 25. Circuit Board 2; 26. Handle; 27. Keycaps; 28. Handle Cover; 29. ​​Magnetic Ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of an anesthesia video laryngoscope, including a frame 2. A screen 1 is installed on the inner side of the frame 2, which allows doctors to clearly observe the patient's oral cavity and pharynx, providing visual support for intubation and other operations. A circuit board 3 is installed on the rear side of the frame 2. The circuit board 3 is a PCBA model. A memory card 5 is provided on the top wall of the circuit board 3, and the memory card 5 engages with the circuit board 3. The memory card 5 is used to store the acquired image or video data. A rear shell 8 is fixedly connected to the rear side of the outer wall of the circuit board 3. The rear shell 8 is used to protect the circuit board 3. A rotating shaft 13 is rotatably connected to the rear side of the outer wall of the rear shell 8. The rotating shaft 13 is used to rotate the rear shell 8. The outer wall of the rotating shaft 13 is rotatably connected to the rear shell 8. A plastic part 12 is attached, and a connector 15 is fixedly connected to the bottom wall of the plastic part 12. A heat shrink tubing 16 is fixedly connected to the inner top wall of the connector 15. The heat shrink tubing 16 is used to tightly connect different components together, ensuring the stability of each part of the laryngoscope structure, so that the performance of the equipment will not be affected by the loosening of components during use. A connector 28 is fixedly connected to the bottom wall of the heat shrink tubing 16, and a connector 19 is installed on the bottom wall of the connector 28. The connector 19 is used for signal transmission. A connector 3 21 is fixedly connected to the bottom wall of the connector 19, and springs 20 are installed at equal intervals on the outer wall of the connector 3 21. The springs 20 can buffer external forces to a certain extent and protect the internal circuits and components. The laryngoscope is equipped with a laryngoscope insertion tube 23, to which a female connector 24 is fixedly connected. The female connector 24 ensures a stable connection during use, preventing loosening or poor contact due to vibration, shaking, or external pulling, thus guaranteeing the reliability and stability of the laryngoscope. A second circuit board 25 (EPCBA type) is mounted on the bottom wall of the female connector 24. A handle 26 is fixedly connected to the bottom wall of the female connector 24, with the second circuit board 25 housed within the handle 26. A light and lens at the bottom of the handle 26 clearly capture images of the patient's oral cavity and pharynx. A handle cover 28 is located on the rear side of the outer wall of the handle 26, used to close the handle 26. The handle cover 28 and the handle 26... The back cover 8 has a battery 4 installed on its inner wall. The battery 4 is used to power the laryngoscope. The upper middle part of the rear side of the outer wall of the circuit board 3 has conductive foam 6 installed. The conductive foam 6 has good conductivity and can form a shielding layer to limit the electromagnetic signal generated by the circuit board 3 to a certain range and prevent it from interfering with other surrounding equipment. Multiple soft rubber parts 7 are fixedly connected at equal intervals on the upper middle part of the rear side of the outer wall of the circuit board 3. The soft rubber parts 7 are used to buffer the pressure of the back cover 8 on the circuit board 3 and prevent the circuit board 3 from being damaged by rigid compression. The right side of the outer wall of the back cover 8 has a dust cover 9 installed. The dust cover 9 is used to prevent dust, moisture and debris from entering the USB interface and HDMI interface on the back cover 8.

[0031] Specifically, the light and lens at the bottom of the handle 26 can clearly capture image information of the patient's mouth and throat, avoiding discomfort to the patient. The data acquired by the lens is initially processed by circuit board 25, and then transmitted to circuit board 3 via female connector 24, insertion tube 23, connector 3 21, connector 19, connector 2 18, heat shrink tubing 16, connector 1 15, and plastic part 12. Circuit board 3 further processes the data and transmits it to screen 1, so that the doctor can clearly observe the patient's mouth and throat, providing visual support for intubation. The memory card 5 on circuit board 3 is used to store the acquired image or video data, which the doctor can access when needed. The spring 20 can buffer external forces to a certain extent and protect the internal circuits and components. The handle cover 28 engages with the handle 26 to protect the internal circuits and components of the handle 26, while also providing a comfortable grip for the doctor. The conductive foam 6 has good conductivity and can form a shielding layer to limit the electromagnetic signals generated by the circuit board 3 to a certain range and prevent them from interfering with other surrounding devices. The soft rubber part 7 is used to buffer the pressure of the back cover 8 on the circuit board 3 and prevent the circuit board 3 from being damaged by rigid compression. The dust cover 9 is used to prevent dust, moisture and debris from entering the USB and HDMI interfaces on the back cover 8.

[0032] Reference Figure 3 and Figure 5 Multiple buttons 10 are equidistantly installed on the top wall of the rear shell 8. The buttons 10 are used to control different functions of the laryngoscope. An indicator light 11 is fixedly connected to the left side of the outer wall of the rear shell 8. The indicator light 11 is used to intuitively display the working status of the laryngoscope. A rubber sheet 14 is installed on the top wall of the connector 15. The rubber sheet 14 is used to buffer the laryngoscope when it is subjected to vibration or external impact. Multiple gaskets 17 are fixedly connected at equal intervals on the bottom wall of the connector 15. The gaskets 17 are used to ensure the installation accuracy and fit clearance between the components, making the structure of the equipment more compact and reasonable.

[0033] Specifically, button 10 is used to control different functions of the laryngoscope, indicator light 11 is used to intuitively display the working status of the laryngoscope, rubber sheet 14 is used to buffer when the laryngoscope is subjected to vibration or external impact, and gasket 17 is used to ensure the installation accuracy and fit clearance between various components, making the structure of the equipment more compact and reasonable.

[0034] Reference Figure 4 Bolts 22 are threaded at the four corners of the top wall of the aviation insertion tube 23. A keycap 27 is installed on the front side of the outer wall of the handle 26. The keycap 27 is used for taking pictures and videos. A magnetic ring 29 is installed inside the handle 26. The magnetic ring 29 is used to form a shielding layer to limit the electromagnetic signals generated inside to a certain range and prevent them from interfering with other surrounding equipment.

[0035] Specifically, bolt 22 is used to ensure that the laryngoscope insertion tube 23 will not loosen due to vibration, movement or other factors during the use of the laryngoscope, keycap 27 is used for taking pictures and videos, and magnetic ring 29 is used to form a shielding layer to limit the electromagnetic signals generated inside to a certain range and prevent them from interfering with other surrounding equipment.

[0036] Working principle: The light and lens at the bottom of the handle 26 can clearly collect image information of the patient's oral cavity and throat, avoiding discomfort to the patient. The data obtained by the lens is initially processed by the second circuit board 25, and transmitted to the first circuit board 3 through the female plug 24, the insertion tube 23, the third connector 21, the connector 19, the second connector 18, the heat shrink tubing 16, the first connector 15, and the plastic part 12. The first circuit board 3 further processes the data and transmits it to the screen 1 so that the doctor can clearly observe the condition of the patient's oral cavity and throat, providing visual support for the intubation operation. The memory card 5 on the first circuit board 3 is used to store the collected image or video data. When needed, the doctor can export this data. The spring 20 can buffer external force to a certain extent and protect the internal circuit and components. The handle cover 28 engages with the handle 26, which protects the internal circuit and components of the handle 26 and also provides a comfortable grip for the doctor.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anaesthetic video laryngoscope comprising a frame (2) characterised in that: A screen (1) is installed on the inner side of the frame (2), and a circuit board (3) is installed on the rear side of the frame (2). A memory card (5) is provided on the top wall of the circuit board (3), and the memory card (5) engages with the circuit board (3). A back shell (8) is fixedly connected to the rear side of the outer wall of the circuit board (3). A rotating shaft (13) is rotatably connected to the rear side of the outer wall of the back shell (8). A plastic part (12) is rotatably connected to the outer wall of the rotating shaft (13). A connector (15) is fixedly connected to the bottom wall of the plastic part (12). A heat shrink tube (16) is fixedly connected to the inner top wall of the connector (15). A connector (18) is fixedly connected to the bottom wall of the heat shrink tube (16). A connector (19) is installed on the bottom wall of the second connector (18). A third connector (21) is fixedly connected to the bottom wall of the connector (19). Springs (20) are installed at equal intervals on the outer wall of the third connector (21). An aviation insertion tube (23) is provided on the bottom wall of the third connector (21). A female plug (24) is fixedly connected to the bottom wall of the aviation insertion tube (23). A second circuit board (25) is installed on the bottom wall of the female plug (24). A handle (26) is fixedly connected to the bottom wall of the female plug (24). The second circuit board (25) is located inside the handle (26). A handle cover (28) is provided on the rear side of the outer wall of the handle (26). The handle cover (28) engages with the handle (26).

2. The anesthetic video laryngoscope of claim 1, wherein: The battery (4) is installed on the inner wall of the rear shell (8).

3. The anesthetic video laryngoscope of claim 1, wherein: Conductive foam (6) is installed on the upper middle part of the rear side of the outer wall of the circuit board 1 (3), and multiple soft rubber parts (7) are fixedly connected at equal intervals on the upper middle part of the rear side of the outer wall of the circuit board 1 (3).

4. The anesthetic video laryngoscope of claim 1, wherein: A dust cover (9) is installed on the right side of the outer wall of the rear shell (8).

5. The anesthetic video laryngoscope of claim 1, wherein: Multiple buttons (10) are equidistantly installed on the top wall of the rear shell (8), and an indicator light (11) is fixedly connected to the left side of the outer wall of the rear shell (8).

6. The anesthetic video laryngoscope of claim 1, wherein: A rubber sheet (14) is installed on the top wall of the connector (15), and multiple gaskets (17) are fixedly connected at equal intervals on the bottom wall of the connector (15).

7. The video laryngoscope of claim 1, wherein: Bolts (22) are threaded at the four corners of the top wall of the aviation insertion tube (23).

8. The anesthetic video laryngoscope of claim 1, wherein: A keycap (27) is installed on the front side of the outer wall of the handle (26), and a magnetic ring (29) is installed inside the handle (26).