Camera assembly, laryngoscope camera and laryngoscope

Abstract

The utility model relates to the technical field of medical equipment, and discloses a camera assembly, a laryngoscope camera and a laryngoscope, the camera assembly comprises an illumination assembly, a camera seat, a camera module and a lens, the camera module and the lens are installed on the camera seat, and the lens is a deflection lens with a visual field deflection function. The lens of the camera assembly for the laryngoscope adopts the deflection lens with a view deflection function, and the deflection lens has a light path deflection function and can achieve a view deflection effect, so that when the laryngoscope camera is used, due to view deflection, the observation area range of the laryngoscope is enlarged compared with the observation area range of a laryngoscope adopting a plane lens; the focus area falls into the center of the visual field of the camera, and the visual field of the camera is not shielded by the laryngoscope lens any more, so that clinical observation operation of a doctor is ensured.

Description

Technical Field

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

[0002] The laryngoscope camera is a video intubation system that uses a high-pixel camera to visualize the physiological structure of the larynx. This device can help doctors observe the laryngeal structure through a high-resolution LCD screen, making the glottis clear, thereby improving the success rate and efficiency of tracheal intubation. The laryngoscope camera is usually composed of a laryngoscope host, a laryngoscope blade, and a power adapter.

[0003] Please refer to the attached figure Figure 1 as well as Figure 2 In the related art, the lens of the laryngoscope mostly adopts a flat lens 101, and the lesion area 102 to be observed is not in the center of the camera's field of view. This situation may affect the doctor's clinical observation operation and judgment. The camera's field of view is easily blocked by the laryngoscope pressure piece 104 set on the shell 103, and the blocked area is relatively large. Utility Model Content

[0004] In view of this, the utility model provides a laryngoscope camera and a laryngoscope to solve the problem that a video laryngoscope uses a flat lens, resulting in the area to be observed not being in the center of the camera's field of view.

[0005] In a first aspect, the utility model provides a camera assembly for a laryngoscope, comprising:

[0006] Camera mount;

[0007] A camera module is mounted on the camera seat;

[0008] A lens, mounted on the camera seat, wherein the lens is a deflection lens with a field of view deflection function, so as to deflect the light emitted by the camera module; and

[0009] The lighting assembly is installed on the laryngoscope and is optically connected to the camera module to provide light required for lighting.

[0010] Beneficial effect: The lens of the camera assembly used for the laryngoscope adopts a deflection lens with a field of view deflection function. Since the deflection lens has the function of deflecting the light path, it can achieve the effect of field of view deflection; therefore, when using the laryngoscope camera, due to the deflection of the field of view, the observation area of ​​the laryngoscope is expanded compared with the use of a flat lens, the lesion area falls into the center of the camera's field of view, and the laryngoscope blade no longer blocks the camera's field of view, ensuring the doctor's clinical observation operation.

[0011] In some embodiments, one end of the lens has a cut angle, and the end corresponds to the camera seat.

[0012] Beneficial effects: One end of the lens has a cutting angle, which facilitates the deflection of the optical path with high reliability through simple structure and process; when designing the deflection lens, the direction of the cutting angle and the cutting angle are directly calculated based on the angle that needs to be deflected (the curvature of the laryngoscope).

[0013] In some embodiments, an embedding groove that matches the shape of the lens is formed on the camera seat, and the lens is installed in the embedding groove.

[0014] Beneficial effects: The lens is installed in the embedded groove, which protects the lens and can also support and limit the installation position of the lens in the laryngoscope; and the shape of the embedded groove is set to a shape that matches the shape of the lens, ensuring that the incident surface of light is parallel to the cross section of the laryngoscope, and the structure is compact.

[0015] In some embodiments, a mounting slope is formed on the bottom side of the embedding groove, and the one end of the lens is disposed on the mounting slope.

[0016] Beneficial effect: Corresponding to the angle and shape of the lens cut corner, the bottom side of the embedding groove forms a mounting slope, so that the end of the lens with the cut corner can be fitted and fixed in the embedding groove, and the installation is stable and reliable.

[0017] In some embodiments, the one end of the lens abuts against the mounting bevel and is adhesively connected to the mounting bevel.

[0018] Beneficial effect: The lens is fixed to the mounting inclined surface by bonding, which has simple process and convenient operation.

[0019] In some embodiments, the lighting assembly includes an LED light source and an LED lamp cover covering the LED light source.

[0020] Beneficial effects: The lighting component adopts LED light source, which has high mechanical strength, less heat dissipation from cold light source, long service life, and improves the reliability of laryngoscope.

[0021] In some embodiments, the lens is made of optical glass.

[0022] Beneficial effects: The lens is made of optical glass. Compared with the lens made of plastic material in the related art, it has good light transmittance, is not easy to scratch, and the video taken is clearer, ensuring the reliability of the laryngoscope camera.

[0023] In a second aspect, the utility model also provides a laryngoscope camera, comprising any camera assembly described above.

[0024] Since the laryngoscope camera adopts the camera assembly of the utility model, it has the same technical effect as the camera assembly and will not be described in detail here.

[0025] In some embodiments, the laryngoscope camera further comprises a disposable laryngoscope blade.

[0026] Beneficial effects: Using disposable laryngoscope blades can avoid cross infection caused by repeated use, making the laryngoscope safer to use.

[0027] In a third aspect, the utility model also provides a laryngoscope, comprising the laryngoscope camera mentioned above.

[0028] Beneficial effect: Since the laryngoscope adopts the laryngoscope camera of the utility model, it has the same technical effect as the laryngoscope camera, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 When the related technology uses a flat lens, the position relationship diagram between the laryngoscope camera's field of view and the lesion area;

[0031] Figure 2 This is a structural diagram of a laryngoscope camera head using a flat lens in the related art, and the diagram shows the observation field of view area;

[0032] Figure 3 A three-dimensional structural diagram of a camera assembly of a laryngoscope camera according to an embodiment of the utility model;

[0033] Figure 4 A front cross-sectional view of a deflection lens according to an embodiment of the utility model;

[0034] Figure 5 A side cross-sectional view of a deflection lens according to an embodiment of the utility model;

[0035] Figure 6 A rear cross-sectional view of a deflection lens according to an embodiment of the utility model;

[0036] Figure 7 A schematic diagram of the light refraction principle of a deflection lens according to an embodiment of the utility model;

[0037] Figure 8A diagram showing the positional relationship between the field of view observed by the laryngoscope camera and the lesion area when the deflection lens of the embodiment of the utility model is used;

[0038] Fig. 9 This is an exploded schematic diagram of a deflection lens and a camera seat of a camera assembly of the utility model;

[0039] Fig.10 This is a structural diagram of a laryngoscope camera of an embodiment of the utility model, showing the observation field of view area;

[0040] Fig.11 for Fig.10 A partial enlarged structural diagram of part A.

[0041] Description of reference numerals:

[0042] 101. plane lens; 102. lesion area; 103. housing; 104. laryngoscope pressing piece;

[0043] 1. Lenses;

[0044] 2. Camera holder;

[0045] 21. Embedding groove; 211. Mounting slope;

[0046] 22. Light source slot;

[0047] 3. Camera module;

[0048] 4. Light source cover;

[0049] 5. Laryngoscope blade;

[0050] 6. Insert into the outer shell. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0052] In the related art, the lenses of video laryngoscopes are mostly made of flat lenses without field of view deflection function, which causes the field of view of the lesion area to be observed to deviate from the center of the camera field of view, affecting the doctor's clinical observation operation, and easily making the blocked area of ​​the display screen field of view too large. In addition, in the related art, the lens material of the laryngoscope is mostly made of plastic material, which has poor light transmittance and is easy to scratch. The video taken is blurred, which affects the doctor's judgment and operation, resulting in reduced reliability of laryngoscope use. In view of this, the present utility model is proposed.

[0053] Combine the following Figures 3 to 11 , describing an embodiment of the utility model.

[0054] According to an embodiment of the present utility model, on the one hand, a camera assembly for a laryngoscope is provided, comprising:

[0055] Camera holder 2;

[0056] The camera module 3 is mounted on the camera seat 2;

[0057] A lens 1 is mounted on a camera seat 2, and the lens 1 is a deflection lens with a field of view deflection function, so as to deflect the light emitted by the camera module 3; and

[0058] The lighting assembly is installed on the laryngoscope and is optically connected to the camera module 3 to provide the light required for lighting.

[0059] The lens 1 of the camera assembly for the laryngoscope adopts a deflecting lens with a field of view deflection function. Since the deflecting lens has an optical path deflection function, the field of view deflection effect can be achieved; therefore, when the laryngoscope camera is used, due to the field of view deflection, the observation area of ​​the laryngoscope is expanded compared with the use of a flat lens, the lesion area 102 falls into the center of the camera field of view, and the laryngoscope blade 5 no longer blocks the camera field of view (see Fig.10 ), ensuring the doctor's clinical observation operation.

[0060] In some embodiments, Figure 3 As shown, the lens 1 is a prismatic lens with a cut corner on the bottom side.

[0061] The bottom side of the prismatic lens adopts an angle-cut design to form a deflection lens. Through a simple structure and process, the light path deflection is convenient and has high reliability. When designing the deflection lens, the direction of the angle cut and the cutting angle are calculated directly based on the angle that needs to be deflected (the curvature of the laryngoscope). Figure 4-Figure 6 The cross-sectional structures of the deflective lens with a cut corner at the bottom at different viewing angles are given.

[0062] The specific deflection principle formula is Snell's Law (the law of refraction of light):

[0063] n1*Sinθ1=n2*Sinθ2;

[0064] n1 and n2 are the refractive indices of the two media, θ1 is the angle of incidence (the angle between the incident light and the normal), and θ2 is the angle of refraction (the angle between the refracted light and the normal).

[0065] like Figure 7 As shown, when light is incident obliquely from one medium to another, the propagation direction changes, causing the light to be deflected at the boundary between different media.

[0066] From the formula, it can be known that the optical prism designed by using the principle of light refraction can offset the center of the camera's field of view, so that the lesion area 102 that originally needs to be observed but is at the edge of the field of view is deflected to the center of the field of view, which is convenient for observation and diagnosis. The specific effect can be referred to Figure 1 Related technologies and Figure 8 The contrast effect of the visual field range of the optical path diagram of the utility model.

[0067] According to Snell's Law (the law of refraction of light), when the light path remains unchanged (i.e. the incident angle θ1 does not change, and the refractive index n1 in this case is the refractive index of the light in the use environment, which is usually a constant value), changing the refraction n2 of the optical glass to change the refraction angle θ2 can change the field of view of the deflection lens. Therefore, we can use optical glasses with different refractive indices to make deflection lenses, and adjust the deflection angle so that the observed area is exactly in the center of the field of view.

[0068] In some embodiments, Fig. 9 As shown, an embedding groove 21 is formed on the camera seat 2 , and the embedding groove 21 is adapted to the lens 1 ; the lens 1 is installed in the embedding groove 21 .

[0069] The lens 1 is installed in the embedding groove 21 to protect the lens 1. At the same time, the embedding groove 21 can limit the installation position of the lens 1 in the laryngoscope to facilitate assembly. The shape of the embedding groove 21 is set to a shape that matches the shape of the lens 1. On the one hand, it ensures that the incident surface of the light is parallel to the cross-section of the laryngoscope, so that the laryngoscope has good light intake efficiency. On the other hand, its structure is compact, which is convenient for the arrangement of other components, and also improves the operability of the laryngoscope camera, such as maintainability and expandability.

[0070] In some embodiments, a mounting inclined surface 211 is formed on the bottom side of the embedding groove 21 , and the lens 1 is connected to the mounting inclined surface 211 .

[0071] Corresponding to the angle and shape of the cut corners of the lens 1 , a mounting slope 211 is formed on the bottom side of the embedding groove 21 , so that the lens 1 can be fitted and fixed in the embedding groove 21 , and the installation is stable and reliable.

[0072] In some embodiments, the lens 1 is connected to the mounting slope 211 .

[0073] Specifically, the lens 1 is connected to the mounting bevel 211 by bonding, which ensures connection reliability while simplifying the process and facilitating operation.

[0074] In some embodiments, the lighting assembly includes a light source and a light source cover 4 covering the light source.

[0075] Specifically, the light source of the lighting assembly adopts an LED light source, which has the advantages of high mechanical strength, less heat dissipation of a cold light source, and long service life, thereby improving the reliability of the laryngoscope. The light source cover 4 is an LED lamp cover.

[0076] It should be noted that the light source is arranged on the camera seat 2 near the lens 1, and can reliably provide a lighting source to ensure clear imaging. Specifically, a light source groove 22 is provided on the camera seat 2, and the light source is installed in the light source groove 22. The light source groove 22 is provided on the camera seat 2 and is located on one side of the embedding groove 21. Moreover, the height of the light source groove 22 on the camera seat 2 is higher than the height of the embedding groove 21, forming a step structure, so that the light source after installation is higher than the lens 1, avoiding the light output of the light source from being blocked.

[0077] In some embodiments, the lens 1 is made of optical glass.

[0078] The lens 1 is made of optical glass, which has good light transmittance and is not easily scratched, and the output video is clearer, thereby ensuring the reliability of the laryngoscope camera.

[0079] According to an embodiment of the present utility model, on the other hand, Fig.10 As shown, the utility model also provides a laryngoscope camera, including the camera assembly of the utility model.

[0080] Since the laryngoscope camera adopts the camera assembly of the utility model, it has the same technical effect as the camera assembly and will not be described in detail here.

[0081] The camera assembly of the laryngoscope camera includes a deflecting lens, a camera seat 2, a camera module 3 and an LED lamp cover. The camera seat 2 mainly serves to fix the deflecting lens and the camera module 3. An LED light source and an LED lamp cover attached to the camera module 3 are also fixed thereon to provide a light source when the laryngoscope is working. The camera seat 2 has an inclined embedded structure corresponding to the deflecting lens, and the deflecting lens and the camera seat 2 are fastened together with waterproof glue.

[0082] In some embodiments, the laryngoscope camera head further comprises an insertion housing 6 and a laryngoscope blade 5, see Fig.10 and Fig.11 In some embodiments, the laryngoscope blade 5 is a disposable blade.

[0083] A disposable laryngoscope blade 5 is used, which is removed and replaced with a new laryngoscope blade 5 after use, thereby avoiding cross infection that may be caused by repeated use, and the laryngoscope is safer to use.

[0084] According to an embodiment of the present utility model, on another aspect, the present utility model further provides a laryngoscope, including the laryngoscope camera of the present utility model.

[0085] Since the laryngoscope adopts the laryngoscope camera of the utility model, a lens with a prism structure is used, which has the function of deflecting the light path, thereby achieving the effect of deflecting the field of view; and optical glass with better light transmittance is used as the material of the deflecting lens 1, which improves the problem of blurred and unclear field of view.

[0086] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A camera assembly for a laryngoscope, characterized in that: include: Camera mount (2); A camera module (3) is mounted on the camera seat (2); A lens (1) is mounted on the camera seat (2), and the lens (1) is a deflection lens with a field of view deflection function, so as to deflect the light emitted by the camera module (3); as well as A lighting assembly is mounted on the laryngoscope and is optically connected to the camera module (3) to provide light required for illumination.

2. The camera assembly according to claim 1, characterized in that: One end of the lens (1) has a cut angle, and the end corresponds to the camera seat (2).

3. The camera assembly according to claim 2, characterized in that: The camera seat (2) is formed with an embedding groove (21) that matches the shape of the lens (1), and the lens (1) is installed in the embedding groove (21).

4. The camera assembly according to claim 3, characterized in that: A mounting bevel (211) is formed on the bottom side of the embedding groove (21), and the one end of the lens (1) is arranged on the mounting bevel (211).

5. The camera assembly according to claim 4, characterized in that: The one end of the lens (1) abuts against the mounting bevel (211) and is adhesively connected to the mounting bevel (211).

6. The camera assembly according to claim 1, characterized in that: The lighting assembly comprises an LED light source and an LED lamp cover which is arranged on the LED light source.

7. The camera assembly according to any one of claims 1 to 6, characterized in that: The deflecting lens (1) is made of optical glass.

8. A laryngoscope camera, characterized in that: A camera assembly comprising any one of claims 1-7.

9. The laryngoscope camera according to claim 8, characterized in that: The laryngoscope camera head also includes a disposable laryngoscope blade (5).

10. A laryngoscope, characterized in that: Comprising the laryngoscope camera according to any one of claims 8-9.

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