Visual laryngoscope with stable imaging quality

Abstract

The utility model provides a visual laryngoscope with stable imaging quality, which comprises a visual laryngoscope main body and a visual laryngoscope insertion end, and the visual laryngoscope insertion end is connected with the front end of the visual laryngoscope main body; the visual laryngoscope inserting end comprises a connecting shell assembly, a metal elbow, a camera shooting assembly and a laryngoscope blade, the tail end of the metal elbow is connected with the front end of the visual laryngoscope body through the connecting shell assembly, the camera shooting assembly is installed at the front end of the metal elbow, and the laryngoscope blade is arranged on the connecting shell assembly and the metal elbow in a sleeving mode. The radian of the metal elbow is consistent with that of the laryngoscope blade, and the camera shooting assembly is tightly attached to the inner wall of the laryngoscope blade. According to the visual laryngoscope, the metal bent pipe is adopted as a supporting part of the insertion end of the visual laryngoscope, the visual laryngoscope is prevented from being deformed due to stress, the camera shooting assembly is tightly attached to the inner wall of the laryngoscope blade, the problem that light is easily reflected during imaging of the camera shooting assembly due to a matched gap can be solved, and therefore the stability of the imaging quality of the visual laryngoscope is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a visual laryngoscope with stable imaging quality. Background Art

[0002] Video laryngoscope is a medical device used to examine and treat throat diseases. It provides real-time images through a camera inserted into the throat, allowing doctors to clearly observe the patient's laryngeal structure, thereby improving diagnosis and treatment effects. Stable imaging quality is an important performance indicator of video laryngoscopes because it directly affects the accuracy of diagnosis and the safety of treatment.

[0003] With the development of optics, electronics and computer technology, video laryngoscopes have also undergone multiple iterations and updates. From the earliest ordinary light-illuminating visual laryngoscopes to fiber-optic laryngoscopes, and then to today's electronic video laryngoscopes, video laryngoscopes have made great improvements in image clarity, light source stability, and ease of operation. There are several main ways to improve the imaging quality of video laryngoscopes: using high-quality lenses, optimizing the design of the optical system, and using advanced electronic control systems and ergonomic design. In terms of video laryngoscope design, common video laryngoscopes have a camera assembly including a camera and a lighting source at the front end. In order to facilitate the assembly of the camera assembly, the existing video laryngoscopes have the front end of the video laryngoscope designed as an injection molded part. The front end of this type of video laryngoscope is easily deformed during use, causing the camera assembly to shift, thereby affecting the stability of the imaging quality.

[0004] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0005] The utility model provides a visual laryngoscope with stable imaging quality, which is used to solve the problem that the front end of the existing visual laryngoscope is easy to deform, causing the camera assembly to shift, thereby affecting the stability of imaging quality.

[0006] The utility model provides a visual laryngoscope with stable imaging quality, comprising:

[0007] Video laryngoscope body;

[0008] The insertion end of the visual laryngoscope is connected to the front end of the visual laryngoscope body, and comprises a connecting shell assembly, a metal bent pipe, a camera assembly and a laryngoscope blade. The end of the metal bent pipe is connected to the front end of the visual laryngoscope body through the connecting shell assembly, the camera assembly is installed on the front end of the metal bent pipe, the laryngoscope blade is sleeved on the connecting shell assembly and the metal bent pipe, and the curvature of the metal bent pipe is consistent with that of the laryngoscope blade, and the camera assembly fits tightly against the inner wall of the laryngoscope blade.

[0009] According to the visual laryngoscope with stable imaging quality provided by the utility model, the metal bent pipe is a hollow tubular structure, the end of the metal bent pipe is provided with a positioning hole and a first fixing hole, the connecting shell assembly is provided with a positioning column and a second fixing hole, the positioning column is inserted in the positioning hole, the first fixing hole corresponds to the second fixing hole, and the first fastener is passed through the first fixing hole and the second fixing hole to fix the metal bent pipe and the connecting shell assembly.

[0010] According to the visual laryngoscope with stable imaging quality provided by the utility model, the connecting shell assembly includes a first connecting shell and a second connecting shell, the first connecting shell is fixed to the front end of the visual laryngoscope body, the positioning column and the second fixing hole are arranged on the side of the first connecting shell facing the second connecting shell, the end of the metal elbow is wrapped between the first connecting shell and the second connecting shell, and the first connecting shell and the second connecting shell are detachably connected.

[0011] According to the visual laryngoscope with stable imaging quality provided by the utility model, a third fixing hole is further provided on the side of the first connecting shell facing the second connecting shell, and the metal bent pipe and the second connecting shell are respectively provided with a first through hole and a fourth fixing hole at positions corresponding to the third fixing hole, and a second fastener is sequentially inserted into the fourth fixing hole, the first through hole and the third fixing hole to connect and fix the first connecting shell and the second connecting shell.

[0012] According to the visual laryngoscope with stable imaging quality provided by the utility model, the visual laryngoscope also includes a waterproof rubber ring, which is contoured to the metal bent pipe, and the outer surface of the metal bent pipe is provided with a limiting groove, and the waterproof rubber ring is sleeved on the limiting groove, and the front end of the connecting shell assembly is tightly fitted to the metal bent pipe through the waterproof rubber ring.

[0013] According to the visual laryngoscope with stable imaging quality provided by the utility model, the front end of the metal bent tube is provided with a camera assembly fixing hole, the camera assembly is installed and fixed in the camera assembly fixing hole, and the end face of the camera assembly is flush with the end face of the metal bent tube.

[0014] According to the visual laryngoscope with stable imaging quality provided by the utility model, the metal bent pipe is a split structure, including a bent pipe body and at least one cover plate, the bent pipe body is a hollow tubular structure, and the side wall of the bent pipe body is provided with a cover plate limiting groove adapted to the cover plate, and the cover plate is installed on the cover plate limiting groove.

[0015] According to the visual laryngoscope with stable imaging quality provided by the utility model, the cover plate limiting groove passes through the side wall of the curved tube body, the cover plate limiting groove extends along the extension direction of the curved tube body, and the shape of the cover plate limiting groove is consistent with the shape of the cover plate.

[0016] According to the visual laryngoscope with stable imaging quality provided by the utility model, glue overflow grooves are provided on the edges around the cover plate limiting groove, the cover plate is fixed to the cover plate limiting groove by colloid, and the glue overflow grooves are used to accommodate the colloid overflowed when the cover plate is installed.

[0017] According to the visual laryngoscope with stable imaging quality provided by the utility model, a data transmission line is arranged in the internal cavity of the metal curved tube, one end of the data transmission line is connected to the camera assembly, and the other end of the data transmission line is connected to the controller on the visual laryngoscope body.

[0018] The above technical solution of the utility model has the following beneficial effects:

[0019] The utility model provides a visual laryngoscope with stable imaging quality. The metal bent pipe is used instead of the traditional injection molded parts as the supporting part of the insertion end of the visual laryngoscope, which can prevent the visual laryngoscope from being deformed by force, improve the structural strength of the insertion end of the visual laryngoscope, and avoid the displacement of the camera assembly due to the deformation of the visual laryngoscope due to force, which affects the stability of the imaging quality of the visual laryngoscope. The metal bent pipe has the same curvature as the laryngoscope blade, so that the camera assembly fits tightly against the inner wall of the laryngoscope blade, which can avoid the problem of easy reflection of the camera assembly due to the matching gap between the camera assembly and the laryngoscope blade, thereby further improving the stability of the imaging quality of the visual laryngoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 An exploded view of the structure of a visual laryngoscope provided in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of a metal elbow provided by an embodiment of the utility model;

[0023] Figure 3 A cross-sectional view of the insertion end of a visual laryngoscope provided in an embodiment of the utility model;

[0024] Figure 4A schematic structural diagram of a metal elbow provided in another embodiment of the utility model.

[0025] Reference numerals:

[0026] 1. Visual laryngoscope body; 2. Connecting shell assembly; 3. Laryngoscope blade; 4. Waterproof rubber ring; 5. Metal elbow; 6. Camera assembly; 7. First fastener; 8. Second fastener; 21. First connecting shell; 22. Second connecting shell; 51. First fixing hole; 52. First through hole; 53. Positioning hole; 54. Limiting groove; 55. Camera assembly fixing hole; 56. Bend pipe body; 57. Cover plate; 560. Cover plate limiting groove; 201. Second fixing hole; 202. Third fixing hole; 203. Positioning column; 204. Fourth fixing hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Combine the following Figures 1 to 4 A visual laryngoscope with stable imaging quality provided by the utility model is described in detail.

[0029] See also Figure 1 The utility model provides a visual laryngoscope with stable imaging quality, comprising a visual laryngoscope body 1 and a visual laryngoscope insertion end, the visual laryngoscope insertion end is connected to the front end of the visual laryngoscope body 1, and the visual laryngoscope insertion end is used to extend into the patient's throat for corresponding examination and treatment. The visual laryngoscope insertion end comprises a connecting shell assembly 2, a laryngoscope blade 3, a waterproof rubber ring 4, a metal elbow 5, a camera assembly 6, a first fastener 7 and a second fastener 8.

[0030] The end of the metal elbow 5 is fixed to the connecting shell assembly 2 through a first fastener 7, and the connecting shell assembly 2 is fixed to the front end of the visual laryngoscope body 1. The camera assembly 6 is installed at the front end of the metal elbow 5, and the laryngoscope blade 3 is sleeved on the connecting shell assembly 2 and the metal elbow 5.

[0031] Specifically, combined Figures 1 to 3As shown, the connecting shell assembly 2 includes a first connecting shell 21 and a second connecting shell 22. The first connecting shell 21 is fixed to the front end of the video laryngoscope body 1. The front end of the video laryngoscope body 1 is a handle elbow. The first connecting shell 21 and the second connecting shell 22 are combined to form a receiving cavity for accommodating the end of the metal elbow 5. The end of the metal elbow 5 is wrapped between the first connecting shell 21 and the second connecting shell 22, and the first connecting shell 21 and the second connecting shell 22 are detachably connected.

[0032] The metal elbow 5 is a hollow tubular structure. The end of the metal elbow 5 is provided with a first fixing hole 51 and a positioning hole 53. The side of the first connection shell 21 facing the second connection shell 22 is provided with a second fixing hole 201 and a positioning column 203. The first fixing hole 51 corresponds to the second fixing hole 201. During assembly, the positioning column 203 is inserted into the positioning hole 53 to ensure the accuracy of the installation position of the metal elbow 5 and the first connection shell 21. Then the first fastener 7 is inserted into the first fixing hole 51 and the second fixing hole 201 to fix the metal elbow 5 and the first connection shell 21. The end of the metal elbow 5 is also provided with a first through hole 52, which is used to make room for the second fastener 8 that fixes the first connection shell 21 and the second connection shell 22. A third fixing hole 202 is also provided on the side of the first connecting shell 21 facing the second connecting shell 22, and a fourth fixing hole 204 is provided on the second connecting shell 22 at a position corresponding to the third fixing hole 202. During assembly, the second fastener 8 is sequentially passed through the fourth fixing hole 204, the first through hole 52 and the third fixing hole 202 to connect and fix the first connecting shell 21 and the second connecting shell 22.

[0033] The first fastener 7 and the second fastener 8 may both be fasteners such as screws.

[0034] The front end of the metal curved tube 5 is provided with a camera assembly fixing hole 55, and the camera assembly 6 is installed and fixed in the camera assembly fixing hole 55. The camera assembly 6 is composed of a camera head and an LED lamp, and its appearance is consistent with the shape of the camera assembly fixing hole 55. The camera assembly 6 is fixed in the camera assembly fixing hole 55 of the metal curved tube 5 after being glued, and it is ensured that the end face of the camera assembly 6 is flush with the end face of the metal curved tube 5 after being installed.

[0035] The waterproof rubber ring 4 is contoured with the metal elbow 5, and a limiting groove 54 is further provided on the outer surface of the metal elbow 5. The limiting groove 54 is used to fix the waterproof rubber ring 4. The waterproof rubber ring 4 is sleeved on the limiting groove 54, and the front end of the connecting shell assembly 2 is tightly fitted with the metal elbow 5 through the waterproof rubber ring 4, thereby achieving a waterproof effect on the insertion end of the visual laryngoscope, preventing water from entering the visual laryngoscope main body 1 and causing equipment failure.

[0036] When the visual laryngoscope is used, if the insertion end of the visual laryngoscope directly inserts the metal curved tube 5 into the human throat, it is easy to cause secondary damage to the patient by the sharp objects on the surface of the metal curved tube 5, and the metal curved tube 5 is inconvenient to be disinfected, so the insertion end of the visual laryngoscope needs to be covered with a disposable laryngoscope blade 3. The laryngoscope blade 3 has the same curvature as the metal curved tube 5, and is sleeved on the connecting shell assembly 2 and the metal curved tube 5 along the metal curved tube 5. After being sleeved, the camera assembly 6 located at the front end of the metal curved tube 5 is tightly fitted with the inner wall of the laryngoscope blade 3, and then the camera in the camera assembly 6 is tightly fitted with the laryngoscope blade 3, which can prevent the refraction of light from affecting the imaging quality of the visual laryngoscope.

[0037] Furthermore, a controller is provided on the visual laryngoscope body 1, and a data transmission line is arranged in the internal cavity of the metal bent pipe 5, one end of the data transmission line is connected to the camera assembly 6, and the other end of the data transmission line is connected to the controller on the visual laryngoscope body 1, so as to transmit the camera data to the controller of the visual laryngoscope body 1.

[0038] In this embodiment, the setting of the metal elbow can improve the structural strength of the insertion end of the visual laryngoscope, avoid the displacement of the camera assembly due to the deformation of the visual laryngoscope caused by the force, and affect the stability of the imaging quality of the visual laryngoscope; and the curvature of the metal elbow is consistent with that of the laryngoscope blade, and the inner wall of the camera assembly and the laryngoscope blade fits tightly, which can avoid the problem of easy reflection of the camera assembly imaging caused by the matching gap between the camera assembly and the laryngoscope blade, thereby further improving the stability of the imaging quality of the visual laryngoscope. In addition, the tail of the metal elbow at the insertion end of the visual laryngoscope is provided with a positioning hole and a first fixing hole, and the first connecting shell is provided with a positioning column and a second fixing hole, which is convenient for fixing the metal elbow to the main body of the visual laryngoscope more stably, and the front end of the metal elbow is provided with a camera assembly fixing hole, which can make the camera fixation more stable, further improving the imaging quality. In addition, the connection part between the tail of the metal elbow and the connecting shell assembly is provided with a waterproof rubber ring, and the camera assembly and the metal elbow are fixed by gluing, which can play a waterproof effect, further ensuring the stable operation of the visual laryngoscope imaging system.

[0039] Generally, the supporting elbow of the insertion end of a video laryngoscope needs to be bent during processing, which is difficult to process and the bending accuracy will affect the assembly effect of the laryngoscope blade. Therefore, another embodiment of the utility model provides a metal elbow with a split structure, which can be directly processed by computer numerical control (CNC) and can better ensure the bending accuracy.

[0040] See also Figure 4The metal elbow 5 of this embodiment includes an elbow body 56 and at least one cover plate 57. The elbow body 56 is a hollow tubular structure. The side wall of the elbow body 56 is provided with a cover plate limiting groove 560 adapted to the cover plate 57. The cover plate 57 is installed on the cover plate limiting groove 560. The cover plate limiting groove 560 penetrates the side wall of the elbow body 56, extends along the extension direction of the elbow body 56, and the shape of the cover plate limiting groove 560 is consistent with the shape of the cover plate 57, and the curvature of the cover plate 57 is consistent with the curvature of the elbow body 56.

[0041] Among them, the end of the bent pipe body 56 is provided with a first fixing hole 51, a first through hole 52, a positioning hole 53 and a limiting groove 54, and the front end of the bent pipe body 56 is provided with a camera assembly fixing hole 55. Among them, the structure and connection method of the first fixing hole 51, the first through hole 52, the positioning hole 53, the limiting groove 54 and the camera assembly fixing hole 55 of the metal bent pipe 5 of this embodiment are consistent with the design method and connection relationship of the metal bent pipe in the above-mentioned embodiment, and will not be repeated here.

[0042] Furthermore, the edges of the cover plate limit groove 560 are provided with overflowing glue grooves, and the cover plate 57 is fixed on the cover plate limit groove 560 by glue, and the overflowing glue groove is used to receive the glue overflowed when the cover plate 57 is installed. The overflowing glue groove can prevent the glue from overflowing, and ensure that the surface of the metal elbow 5 is smooth and has no protrusions after bonding.

[0043] The metal elbow 5 of the present embodiment can improve the structural strength of the insertion end of the video laryngoscope, avoid the displacement of the camera assembly due to the deformation of the visual laryngoscope caused by the force, and affect the stability of the imaging quality of the visual laryngoscope. The metal elbow 5 of the present embodiment adopts a split structural design to facilitate production and processing, which can better ensure the curvature of the metal elbow 5, make the metal elbow 5 and the laryngoscope blade 3 fit more closely, avoid the problem of easy reflection of the imaging due to the fitting gap, and further improve the imaging stability of the visual laryngoscope.

[0044] To facilitate CNC processing, compared with the metal bend in the above embodiment, the split metal bend in this embodiment has more CNC processed grooves, which meets the CNC processing requirements without affecting the use effect and improves the dimensional accuracy of the split metal bend.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A visual laryngoscope with stable imaging quality, characterized in that: include: Video laryngoscope body; The insertion end of the visual laryngoscope is connected to the front end of the visual laryngoscope body, and comprises a connecting shell assembly, a metal bent pipe, a camera assembly and a laryngoscope blade. The end of the metal bent pipe is connected to the front end of the visual laryngoscope body through the connecting shell assembly, the camera assembly is installed on the front end of the metal bent pipe, the laryngoscope blade is sleeved on the connecting shell assembly and the metal bent pipe, and the curvature of the metal bent pipe is consistent with that of the laryngoscope blade, and the camera assembly fits tightly against the inner wall of the laryngoscope blade.

2. The video laryngoscope with stable imaging quality according to claim 1, characterized in that: The metal bent pipe is a hollow tubular structure, and a positioning hole and a first fixing hole are provided at the end of the metal bent pipe. A positioning column and a second fixing hole are provided on the connecting shell assembly. The positioning column is inserted into the positioning hole, and the first fixing hole corresponds to the second fixing hole. A first fastener is inserted into the first fixing hole and the second fixing hole to fix the metal bent pipe and the connecting shell assembly.

3. The video laryngoscope with stable imaging quality according to claim 2, characterized in that: The connecting shell assembly includes a first connecting shell and a second connecting shell, the first connecting shell is fixed to the front end of the visual laryngoscope body, the positioning column and the second fixing hole are arranged on the side of the first connecting shell facing the second connecting shell, the end of the metal elbow is wrapped between the first connecting shell and the second connecting shell, and the first connecting shell and the second connecting shell are detachably connected.

4. The video laryngoscope with stable imaging quality according to claim 3, characterized in that: A third fixing hole is further provided on a side of the first connecting shell facing the second connecting shell, and a first through hole and a fourth fixing hole are respectively provided on the metal bent pipe and the second connecting shell at positions corresponding to the third fixing hole, and a second fastener is sequentially inserted into the fourth fixing hole, the first through hole and the third fixing hole to connect and fix the first connecting shell and the second connecting shell.

5. The video laryngoscope with stable imaging quality according to claim 3, characterized in that: The visual laryngoscope also includes a waterproof rubber ring, which is contoured to the metal curved pipe. A limiting groove is provided on the outer surface of the metal curved pipe. The waterproof rubber ring is sleeved on the limiting groove. The front end of the connecting shell assembly is tightly fitted to the metal curved pipe through the waterproof rubber ring.

6. The video laryngoscope with stable imaging quality according to claim 1, characterized in that: A camera assembly fixing hole is provided at the front end of the metal bent pipe, the camera assembly is installed and fixed in the camera assembly fixing hole, and the end face of the camera assembly is flush with the end face of the metal bent pipe.

7. The video laryngoscope with stable imaging quality according to claim 1, characterized in that: The metal elbow is a split structure, including an elbow body and at least one cover plate. The elbow body is a hollow tubular structure. The side wall of the elbow body is provided with a cover plate limiting groove adapted to the cover plate, and the cover plate is installed on the cover plate limiting groove.

8. The video laryngoscope with stable imaging quality according to claim 7, characterized in that: The cover plate limiting groove passes through the side wall of the elbow body, the cover plate limiting groove extends along the extension direction of the elbow body, and the shape of the cover plate limiting groove is consistent with the shape of the cover plate.

9. The video laryngoscope with stable imaging quality according to claim 7, characterized in that: The edges of the cover plate limiting groove are provided with overflowing glue grooves. The cover plate is fixed on the cover plate limiting groove by colloid. The overflowing glue grooves are used to receive the colloid overflowed when the cover plate is installed.

10. The video laryngoscope with stable imaging quality according to claim 1, characterized in that: A data transmission line is arranged in the inner cavity of the metal elbow, one end of the data transmission line is connected to the camera assembly, and the other end of the data transmission line is connected to a controller on the visual laryngoscope body.

Images