Novel optical inspection mirror

Abstract

The utility model relates to a novel optical inspection mirror which comprises a mirror body, a light source and a concave mirror, an inner cavity is arranged in the mirror body, two sides of the inner cavity are respectively provided with an observation port and an inspection port, the light source is arranged in the inner cavity, the concave mirror covers the light source, and the concave mirror is provided with a light outlet opposite to the inspection port. The concave mirror is provided with a focusing part which is opposite to the light source and forms a focusing point and a reflecting part which is opposite to the focusing point and emits light in parallel along the light outlet.

Description

Technical Field

[0001] The utility model relates to an inspection mirror, in particular to a novel optical inspection mirror. Background Art

[0002] An inspection mirror is a basic instrument for doctors to examine the deep parts of the ear canal, nasal cavity and oral and pharyngeal regions. It usually consists of a handle and an internal or external light source. The light source directly irradiates the internal structure of the body cavity, and the doctor directly observes through the central hole, so as to clearly and non-invasively explore the internal structure of these body cavities. It is a convenient and efficient tool for routine physical examinations and preliminary diagnoses of the ear, nose and throat.

[0003] The current inspection mirror relies on a light source matrix formed by multiple light sources to provide illumination. However, the splicing of multiple light sources makes the circuit complex, and the mirror sleeve of the inspection mirror needs to be replaced after each patient uses it. Therefore, the part of the inspection mirror installed with the mirror sleeve needs to be made of wear-resistant material, and installing the light source on the wear-resistant material will result in high installation costs. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an inspection mirror with low cost for a novel optical inspection mirror.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: It includes a mirror body, a light source and a concave mirror. An inner cavity is provided in the mirror body. Observation ports and inspection ports are respectively arranged on both sides of the inner cavity. The light source is arranged in the inner cavity, and the concave mirror covers the light source. The concave mirror has a light outlet opposite to the inspection port, a focusing part opposite to the light source and forming a focal point, and a reflecting part opposite to the focal point and emitting light along the light outlet in parallel. Here, the focal point is a point of a virtual concept, and a focal point formed according to Fermat's principle. Therefore, an elliptical three-dimensional concave mirror needs to be designed to focus the light on the focal point, and then be reflected to the light outlet to illuminate the body cavity.

[0006] By adopting the above technical solutions, the light emitted by the light source is converged to the focal point by the focusing part of the concave mirror, and then reflected by the reflecting part, and is converted into a parallel light beam and emitted from the light outlet, passes through the inspection port and directly reaches the inside of the body cavity. The doctor directly observes the illuminated body cavity structure through the observation port. Through the cooperation of a single light source and the concave mirror, uniform parallel illumination is realized with a very simple structure, completely replacing the traditional multi-light source matrix, significantly reducing the circuit complexity and the light source cost; at the same time, it avoids the observation blind area caused by light scattering and improves the imaging clarity of the deep structure of the body cavity.

[0007] The present utility model is further configured as: further comprising a lens sleeve, the lens body includes a receiving portion and a handle portion, the inner cavity is located within the receiving portion, and the observation port and the inspection port are located on both sides of the receiving portion, the handle portion is disposed at the bottom of the receiving portion, the lens sleeve is detachably disposed at the inspection port, and the other side of the lens sleeve opposite to the inspection port faces the light outlet and forms parallel light rays shooting out from the lens sleeve.

[0008] By adopting the above technical solution, the lens sleeve is detachably installed at the inspection port, and the parallel light rays emitted by the concave mirror pass through the lens sleeve and enter the body cavity. After use, the lens sleeve is removed for separate disinfection or replacement, and the lens body can be reused. Through the split design of the detachable lens sleeve and the inspection port, a low-cost operation and maintenance mode of "one lens body + multiple lens sleeves" is realized: the lens sleeve is replaced as an independent consumable, avoiding overall scrapping; the lens body does not need to be wrapped with wear-resistant materials for the light source, greatly reducing the material cost; and the detachable disinfection of the lens sleeve completely eliminates the risk of cross-infection.

[0009] The present utility model is further configured as: a communication cavity communicating with the inner cavity is provided within the handle portion, and the light source is disposed within the communication cavity and partially extends into the inner cavity.

[0010] By adopting the above technical solution, the light source body is embedded in the communication cavity of the handle portion, and only the light-emitting end extends into the inner cavity, avoiding direct contact between the light source and the inner cavity. The design of hiding the light source body in the communication cavity of the handle forms a physical isolation barrier between the "light source - inspection area": on the one hand, it eliminates the risk of body fluid erosion of the light source and extends the device life; on the other hand, the inner cavity does not need to be additionally provided with a wear-resistant protective layer, further reducing the usage amount of high-cost materials, echoing the overall low-cost core.

[0011] The present utility model is further configured as: the lens sleeve is frustum-shaped, the bottom of the lens sleeve is detachably connected to the inspection port, and the top of the lens sleeve faces the light outlet.

[0012] By adopting the above technical solution, the bottom of the frustum-shaped lens sleeve is snap-connected to the inspection port, and the top is narrowed and faces the light outlet, restricting the light rays to shoot out in a parallel direction. The conical structure of the frustum-shaped lens sleeve optimizes the optical and mechanical properties in a dual manner: its narrowed top precisely restricts the light-emitting angle and enhances the directivity of deep cavity illumination; the wide-mouth design at the bottom ensures quick snap connection and positioning with the inspection port, avoiding optical path deviation caused by assembly misalignment, and at the same time adapting to the insertion requirements of narrow body cavities.

[0013] The present utility model is further configured as: the reflecting portion is locally circular and faces the light outlet, and the focusing portion is locally elliptical and is located on both sides of the reflecting portion.

[0014] By adopting the above technical solution, the elliptical focusing part accurately converges the light rays of the light source to the focal point, and the circular reflecting part reflects the focal light rays into parallel light beams, which are vertically emitted from the light outlet. The combined split curved surfaces of the elliptical focusing part and the circular reflecting part achieve efficient optical path conversion and process cost reduction: the elliptical surface precisely focuses light to reduce energy loss, and the circular reflecting surface forces parallel emission to eliminate stray light; moreover, the split curved surface reduces the overall processing difficulty of the concave mirror and avoids the high manufacturing cost of a complex integral curved surface.

[0015] The present utility model is further configured as: an observation mirror is provided on the observation port, and the observation mirror can be a convex lens.

[0016] By adopting the above technical solution, the observation mirror is embedded in the observation port, and the doctor observes the body cavity illuminated by the parallel light through this lens. The addition of the observation mirror simultaneously improves the diagnostic efficiency and operation safety: the optical magnification function enhances the ability to identify details of deep tissues; the physical barrier blocks the contact of body fluids between doctors and patients; and it suppresses the interference of ambient stray light, improving the contrast of the illumination area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the whole of the present utility model;

[0018] Figure 2 is an exploded view of the whole of the present utility model;

[0019] Figure 3 is a schematic structural view of the whole of the present utility model with the lens sleeve omitted.

[0020] 1. Mirror body; 10. Inner cavity; 11. Accommodating part; 12. Handle part; 13. Inspection port; 14. Observation port; 2. Light source; 21. Connecting cavity; 3. Concave mirror; 31. Light outlet; 32. Focusing part; 33. Reflecting part; 4. Lens sleeve; 5. Observation mirror. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] As Figures 1-3 shown, the present utility model discloses a novel optical inspection mirror, which includes a mirror body 1, a light source 2 and a concave mirror 3. An inner cavity 10 is provided in the mirror body 1. An observation port 14 and an inspection port 13 are respectively provided on both sides of the inner cavity 10. The light source 2 is arranged in the inner cavity 10, and the concave mirror 3 covers the light source 2. The concave mirror 3 has a light outlet 31 opposite to the inspection port 13. The concave mirror 3 has a focusing part 32 opposite to the light source 2 and forming a focal point, and a reflecting part 33 opposite to the focal point and emitting light along the light outlet 31 in parallel. Here, the focal point is a virtual concept point, a focal point formed according to Fermat's principle. Therefore, an elliptical three-dimensional concave mirror 3 needs to be designed to focus the light to the focal point, and then be reflected to the light outlet 31 to illuminate the body cavity. The light emitted by the light source 2 is converged by the focusing part 32 of the concave mirror 3 to the focal point, and then reflected by the reflecting part 33, and is converted into a parallel light beam and emitted from the light outlet 31, passes through the inspection port 13 and reaches directly inside the body cavity. The doctor directly observes the illuminated body cavity structure through the observation port 14. Through the cooperation of a single light source 2 and the concave mirror 3, uniform parallel illumination is realized with a minimalist structure, completely replacing the traditional multi-light source 2 matrix, significantly reducing the circuit complexity and the cost of the light source 2; at the same time, avoiding the observation blind area caused by light scattering and improving the imaging clarity of the deep structure of the body cavity.

[0024] It further includes a mirror sleeve 4. The mirror body 1 includes a receiving part 11 and a handle part 12. The inner cavity 10 is located in the receiving part 11, and the observation port 14 and the inspection port 13 are located on both sides of the receiving part 11. The handle part 12 is arranged at the bottom of the receiving part 11. The mirror sleeve 4 is detachably arranged at the inspection port 13. The other side of the mirror sleeve 4 opposite to the inspection port 13 is opposite to the light outlet 31 and constitutes the parallel light emitted from the mirror sleeve 4. The mirror sleeve 4 is detachably installed at the inspection port 13. The parallel light emitted by the concave mirror 3 passes through the mirror sleeve 4 and enters the body cavity. After use, the mirror sleeve 4 is removed and disinfected or replaced separately, and the mirror body 1 can be reused. Through the detachable design of the mirror sleeve 4 and the inspection port 13, a low-cost operation and maintenance mode of "one mirror body + multiple mirror sleeves 4" is realized: the mirror sleeve 4 is replaced as an independent consumable, avoiding overall scrapping; the mirror body 1 does not need to be wrapped with wear-resistant materials for the light source 2, greatly reducing the material cost; and the detachable disinfection of the mirror sleeve 4 completely eliminates the risk of cross-infection.

[0025] A connecting cavity 21 connected to the inner cavity 10 is provided in the handle portion 12, and the light source 2 is arranged in the connecting cavity 21 and partially extends from the inner cavity 10. The main body of the light source 2 is embedded in the connecting cavity 21 of the handle portion 12, and only the light-emitting end extends into the inner cavity 10 to avoid direct contact between the light source 2 and the inner cavity 10. The design of the main body of the light source 2 hidden in the connecting cavity 21 of the handle forms a physical isolation barrier of "light source 2-inspection area": on the one hand, the risk of body fluids corroding the light source 2 is eliminated, thereby extending the life of the device; on the other hand, the inner cavity 10 does not need to have an additional wear-resistant protective layer, further reducing the use of high-cost materials, echoing the overall low-cost core.

[0026] The mirror cover 4 is in a truncated cone shape, and the bottom of the mirror cover 4 is detachably connected to the inspection port 13, and the top of the mirror cover 4 is opposite to the light outlet 31. The bottom of the truncated cone-shaped mirror cover 4 is clamped with the inspection port 13, and the top is narrowed to face the light outlet 31, so as to constrain the light to be emitted in a directional and parallel manner. The conical structure of the truncated cone-shaped mirror cover 4 dually optimizes the optical and mechanical properties: its narrowed top accurately constrains the light output angle and enhances the directionality of deep cavity lighting; the wide-mouth design at the bottom ensures quick clamping and positioning with the inspection port 13, avoids optical path deviation caused by assembly misalignment, and adapts to the insertion requirements of narrow body cavities.

[0027] The reflecting portion 33 is partially circular and opposite to the light outlet 31, and the focusing portion 32 is partially elliptical and located on both sides of the reflecting portion 33. The elliptical focusing portion 32 accurately converges the light from the light source 2 to a focusing point, and the circular reflecting portion 33 then reflects the focal light into a parallel light beam, which is vertically emitted from the light outlet 31. The split curved surface combination of the elliptical focusing portion 32 and the circular reflecting portion 33 achieves efficient optical path conversion and process cost reduction: the elliptical surface accurately focuses light to reduce energy loss, and the circular reflecting surface forces parallel emission to eliminate stray light; and the split curved surface reduces the overall processing difficulty of the concave mirror 3, avoiding the high manufacturing cost of complex integrated curved surfaces.

[0028] An observation mirror 5 is provided on the observation port 14. The observation mirror 5 can be a convex lens. The observation mirror 5 is embedded in the observation port 14. The doctor observes the body cavity illuminated by parallel light through the lens. The addition of the observation mirror 5 simultaneously improves the diagnostic efficiency and the operation safety: the optical magnification function enhances the recognition of deep tissue details; the physical barrier blocks the contact between doctor and patient body fluids; and the interference of environmental stray light is suppressed to improve the contrast of the lighting area.

[0029] Working process: After the light source 2 is started, it emits light. The elliptical focusing part 32 of the concave mirror 3 converges the light to the focal point. The circular reflecting part 33 then receives the light at the focal point and reflects it into a parallel light beam, which perpendicularly emits from the light outlet 31 of the concave mirror 3. When the lens sleeve 4 is installed at the inspection port 13, the parallel light beam passes through the top of the lens sleeve 4 and enters the body cavity while maintaining a parallel state, illuminating the deep tissue structure. The doctor directly observes the illuminated body cavity through the observation mirror 5 at the observation port 14. At the same time, the communication cavity 21 of the handle part 12 isolates the main body of the light source 2 from the inner cavity 10, preventing pollutants from contacting the light source 2. After use, remove the lens sleeve 4 and replace or disinfect it separately, and the mirror body 1 can be reused for the next time.

Claims

1. A new type of optical inspection mirror, characterized in that: It includes a mirror body (1), a light source (2) and a concave mirror (3). An inner cavity (10) is provided inside the mirror body (1). On both sides of the inner cavity (10), there are an observation port (14) and an inspection port (13) respectively. The light source (2) is arranged in the inner cavity (10), and the concave mirror (3) covers the light source (2). The concave mirror (3) has a light outlet (31) opposite to the inspection port (13), and the concave mirror (3) has a focusing part (32) opposite to the light source (2) and forming a focal point, and a reflecting part (33) opposite to the focal point and emitting light parallel to the light outlet (31).

2. The novel optical inspection mirror according to claim 1, characterized in that: It further includes a mirror sleeve (4). The mirror body (1) includes a receiving part (11) and a handle part (12). The inner cavity (10) is located inside the receiving part (11), and the observation port (14) and the inspection port (13) are on both sides of the receiving part (11). The handle part (12) is arranged at the bottom of the receiving part (11). The mirror sleeve (4) is detachably arranged at the inspection port (13). The other side of the mirror sleeve (4) opposite to the inspection port (13) is opposite to the light outlet (31) and constitutes parallel light emitting from the mirror sleeve (4).

3. The novel optical inspection mirror according to claim 2, wherein: A communication cavity (21) communicating with the inner cavity (10) is provided inside the handle part (12). The light source (2) is arranged in the communication cavity (21) and partially extends into the inner cavity (10).

4. The novel optical inspection mirror according to claim 2, characterized in that: The mirror sleeve (4) is frustum-shaped. The bottom of the mirror sleeve (4) is detachably connected to the inspection port (13), and the top of the mirror sleeve (4) is opposite to the light outlet (31).

5. A novel optical inspection mirror according to claim 1, characterized in that: The reflecting part (33) is partially circular and opposite to the light outlet (31), and the focusing part (32) is partially elliptical and located on both sides of the reflecting part (33).

6. A novel optical inspection mirror according to claim 1, characterized in that: An observation mirror (5) is provided on the observation port (14).

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