Coaxial illumination mechanism for assisting ophthalmologic operation microscope

Abstract

The utility model belongs to the field of ophthalmology microscopes, particularly relates to a coaxial illumination mechanism for assisting an ophthalmology operation microscope, and aims to solve the problems that most existing structures are fixed, and the observation angle of the existing structures is hindered due to the fact that the direction of irradiation light is the same as the view angle direction of a main sight glass. In order to solve the problems in the prior art, the utility model provides the following scheme: the device comprises a main lens, the bottom of the main lens is connected with an objective lens connecting sleeve, and the bottom end in the objective lens connecting sleeve is provided with a large objective lens; the illumination assembly is used for light illumination, the illumination assembly is arranged on one side of the objective lens connecting sleeve and comprises a lens sleeve shell and an LED module, the position and angle of the illumination assembly can be adjusted within a certain range, the illumination assembly has certain flexibility, the phenomenon that the sight is blocked can be avoided, the illumination position can be adjusted according to needs, and the illumination effect is improved. Therefore, the practicability is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of ophthalmic microscope technology, and in particular to a coaxial illumination mechanism for an auxiliary ophthalmic surgical microscope. Background Technology

[0002] Ophthalmic surgery is a medical procedure that requires extremely high precision and detail. Its success often depends on the visualization effect during the operation. In ophthalmic surgery, the microscope serves as a key surgical aid, providing doctors with a magnified and clear field of vision, enabling the accurate observation and manipulation of tiny eye structures.

[0003] However, traditional microscopes rely on external light for illumination, which can cause shadows due to angular deviations. Coaxial illumination, on the other hand, places the illumination mechanism inside the microscope, ensuring that the viewing angle and the angle of light are aligned on the same axis as much as possible, thus avoiding this problem.

[0004] However, the structure of this lighting mechanism is mostly fixed, and since the direction of the irradiated light is the same as the viewing angle of the main viewing mirror, it will obstruct the viewing angle and cannot be adjusted according to actual needs, thus reducing its practicality. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the structure of the illumination mechanism is mostly fixed, and the direction of the irradiated light is the same as the viewing angle of the main mirror, which obstructs the observation angle. Therefore, this invention proposes a coaxial illumination mechanism for assisting ophthalmic surgical microscopes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coaxial illumination mechanism for an auxiliary ophthalmic surgical microscope includes a main lens, an objective lens connecting sleeve connected to the bottom of the main lens, and a large objective lens disposed at the bottom of the inner side of the objective lens connecting sleeve.

[0008] An illumination assembly for providing light illumination is provided. The illumination assembly is disposed on one side of the objective lens connecting sleeve. The illumination assembly includes a lens housing and an LED module. The outer wall of the objective lens connecting sleeve has a through hole. One end of the lens housing extends into the interior of the objective lens connecting sleeve through the through hole. One end of the lens housing has an L-shaped cavity. The LED module is installed inside the L-shaped cavity. A right-angle prism is fixedly installed at the bend of the L-shaped cavity. The LED module cooperates with the right-angle prism.

[0009] An adjustment component is used to adjust the position and angle of the LED module, and the adjustment component is disposed on the outer wall of the objective lens connecting sleeve.

[0010] In one possible design, the adjustment assembly includes a slide plate, a bracket is fixedly fitted on the outer wall of the objective lens connecting sleeve, the slide plate is slidably mounted on the top of the bracket, one end of the lens housing is rotatably mounted on one side of the top of the slide plate, a toothed plate is slidably mounted on the top of the bracket, a row of toothed grooves is formed on one side of the slide plate, the toothed plate cooperates with the toothed grooves, a bottom shell is fixedly mounted on the bottom of the bracket, a connecting plate is slidably mounted on the bottom of the bracket and the connecting plate is located inside the bottom shell, and one end of the connecting plate is fixedly mounted to one end of the toothed plate.

[0011] In one possible design, a groove is provided on one side of the connecting plate, a limit rod is fixedly installed inside the groove, a fixing plate is fixedly installed inside the bottom shell, and the fixing plate is slidably sleeved on the outer wall of the limit rod. A compression spring is sleeved on the outer wall of the limit rod, and the two ends of the compression spring are respectively fixedly installed on the inner wall of one side of the groove and one side of the fixing plate.

[0012] In one possible design, the adjustment assembly further includes a threaded shaft, a support plate is fixedly mounted on the top of the slide plate and the support plate is threaded onto the outer wall of the threaded shaft, an insert is fixedly mounted on the top of the slide plate, a groove is provided at the bottom of the lens housing and the insert is located inside the groove, a lower semi-circular groove is provided on the top of the insert and an upper semi-circular groove is provided on the inner wall of the top of the groove, and one end of the threaded shaft extends into the interior of the upper and lower semi-circular grooves.

[0013] In one possible design, the two ends of the upper semicircular groove are an outer port and an inner port, respectively, and the diameter of the outer port is larger than that of the inner port.

[0014] In one possible design, the rotation point of the lens housing is provided with a torsion spring.

[0015] In one possible design, a protective cylinder is fixedly installed at one end of the connecting plate, and the threaded shaft is located inside the protective cylinder.

[0016] In this application, during actual use, the light from the LED module is refracted downwards by a right-angle prism, thus achieving coaxiality with the observation field of view of the main lens. By pressing down on the connecting plate, the toothed plate is moved, disengaging from the toothed groove, thereby releasing the fixed state of the slide plate. Then, the slide plate and the lens housing can be moved to adjust the position of one end of the lens housing inside the objective lens connecting sleeve as needed. As the position of the lens housing changes, the position of the light illumination also changes accordingly. At this time, by rotating the threaded shaft, one end of the threaded shaft will move into the lower and upper semicircular grooves. Since the diameter of the inner port is smaller than that of the outer port, the threaded shaft will push the lens housing upwards during movement, thereby adjusting the illumination angle so that it can still illuminate the corresponding position. Subsequently, the connecting plate is reset by the compression spring, the toothed plate will lock the slide plate again, and the protective sleeve will be fitted onto the outer wall of the threaded shaft to prevent accidental contact.

[0017] In this utility model, the coaxial illumination mechanism for an auxiliary ophthalmic surgical microscope can achieve downward illumination by refraction of light through the illumination component, thereby achieving coaxiality with the observation field of view of the main lens, so as to provide the required light while avoiding the shadow problem caused by using an external light source;

[0018] In this utility model, the coaxial illumination mechanism for an auxiliary ophthalmic surgical microscope can adjust the lateral position and illumination angle of the illumination component through the adjustment component, so that its position inside the objective lens connecting sleeve can be adjusted as needed to avoid obstructing the observation view.

[0019] In this invention, the light emitted from the inside improves the precision and efficiency of the surgery. The position and angle of the lighting component can be adjusted within a certain range, giving it flexibility and preventing obstruction of vision. The irradiation position can also be adjusted as needed, thus greatly increasing its practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of a coaxial illumination mechanism for an auxiliary ophthalmic surgical microscope proposed in this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged view of the structure of section A;

[0022] Figure 3 This is a cross-sectional structural schematic diagram of a coaxial illumination mechanism for an auxiliary ophthalmic surgical microscope proposed in this utility model;

[0023] Figure 4 This is an exploded structural diagram of an adjustment assembly for a coaxial illumination mechanism of an auxiliary ophthalmic surgical microscope proposed in this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the lens housing of an auxiliary ophthalmic surgical microscope according to the present invention.

[0025] Figure 6 This is a schematic diagram of the exploded view of the coaxial illumination mechanism of an auxiliary ophthalmic surgical microscope proposed in this utility model.

[0026] In the diagram: 1. Main lens; 2. Objective lens connecting sleeve; 3. Slide plate; 4. Gear groove; 5. Gear plate; 6. Support; 7. Lens housing; 8. Through hole; 9. LED module; 10. L-shaped cavity groove; 11. Right angle prism; 12. Upper semi-circular groove; 1201. Outer port; 1202. Inner port; 13. Insert groove; 14. Support plate; 15. Threaded shaft; 16. Insert block; 17. Lower semi-circular groove; 18. Fixing plate; 19. Bottom shell; 20. Connecting plate; 21. Limiting rod; 22. Compression spring; 23. Protective cylinder. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1

[0029] Reference Figure 1 , Figure 3 An illumination mechanism includes: a main lens 1, an objective lens connecting sleeve 2, and an illumination assembly. The main lens 1 is connected to the bottom of the objective lens connecting sleeve 2, and a large objective lens is installed at the bottom inside the objective lens connecting sleeve 2 for magnifying and observing the surgical site. The illumination mechanism is located on one side of the objective lens connecting sleeve 2 to provide the illumination required for the surgery.

[0030] The illumination assembly specifically consists of a lens housing 7 and an LED module 9. A through hole 8 is provided on the outer wall of the objective lens connecting sleeve 2, and one end of the lens housing 7 extends into the interior of the objective lens connecting sleeve 2 through this through hole 8. An L-shaped cavity 10 is machined at one end of the lens housing 7, and the LED module 9 is installed inside the L-shaped cavity 10. A right-angle prism 11 is fixedly installed at the bend of the L-shaped cavity 10. The light emitted by the LED module 9 is refracted by the right-angle prism 11, achieving coaxiality with the optical axis of the main lens 1, thereby improving the accuracy and effect of the illumination. This LED module 9 is the same as the LED module in the coaxial illumination mechanism of the ophthalmic surgical microscope with announcement number CN222420644U.

[0031] This application can be used in the field of ophthalmic microscopy, or in other fields applicable to this application.

[0032] Example 2

[0033] refer to Figure 2 An improvement upon Embodiment 1: An auxiliary coaxial illumination mechanism for ophthalmic surgical microscopes, applied in the field of ophthalmic microscopy. The adjustment component is used to adjust the position and angle of the LED module 9. The mechanism mainly consists of a slide plate 3, a support 6, a toothed plate 5, and a base shell 19. The support 6 is fixedly sleeved on the outer wall of the objective lens connecting sleeve 2, and the slide plate 3 is slidably mounted on the top of the support 6. One end of the lens sleeve 7 is connected to one side of the top of the slide plate 3 via a rotating structure. A toothed plate 5 is also slidably mounted on the top of the support 6. A row of toothed grooves 4 is formed on one side of the slide plate 3. The toothed plate 5 engages with the toothed grooves 4. By moving the toothed plate 5, the slide plate 3 can slide on the support 6, thereby adjusting the position of the LED module 9.

[0034] Reference Figure 6 The bottom shell 19 is fixedly installed at the bottom of the bracket 6, and the connecting plate 20 is slidably installed inside the bottom shell 19. One end of the connecting plate 20 is fixedly connected to one end of the toothed plate 5. By pushing or pulling the connecting plate 20, the toothed plate 5 can be moved, thereby releasing the fixation of the slide plate 3.

[0035] To achieve the reset of the connecting plate 20, a groove is provided on one side of the connecting plate 20, and a limit rod 21 is fixedly installed inside the groove. A fixing plate 18 is fixedly installed inside the bottom shell 19, and the fixing plate 18 is slidably sleeved on the outer wall of the limit rod 21. A compression spring 22 is sleeved on the outer wall of the limit rod 21, and the two ends of the compression spring 22 are respectively fixedly installed on one side of the inner wall of the groove and one side of the fixing plate 18. When the connecting plate 20 is released, the elastic force of the compression spring 22 can automatically reset the connecting plate 20 and the toothed plate 5.

[0036] Reference Figure 4-5 The adjustment assembly also includes a threaded shaft 15. A support plate 14 is fixedly mounted on the top of the slide plate 3, and the support plate 14 is threaded onto the outer wall of the threaded shaft 15. An insert 16 is also fixedly mounted on the top of the slide plate 3. A groove 13 is provided at the bottom of the mirror housing 7, and the insert 16 is located inside the groove 13. A lower semi-circular groove 17 is provided on the top of the insert 16, and an upper semi-circular groove 12 is provided on the inner wall of the top of the groove 13. One end of the threaded shaft 15 extends into the interior of the upper semi-circular groove 12 and the lower semi-circular groove 17.

[0037] In addition, the two ends of the upper semicircular groove 12 are designed as an outer port 1201 and an inner port 1202, and the diameter of the outer port 1201 is larger than that of the inner port 1202. A torsion spring is provided at the rotation point of the lens cover 7. The torsion spring can provide a certain restoring force, so that the lens cover 7 can maintain a fixed angle after adjustment and is not easy to shake.

[0038] Specifically, by pressing down on the connecting plate 20, the toothed plate 5 is moved, disengaging from the toothed groove 4, thereby releasing the fixed state of the slide plate 3. Then, the slide plate 3, together with the lens housing 7, can be moved to adjust the position of one end of the lens housing 7 inside the objective lens connecting sleeve 2 as needed. As the position of the lens housing 7 changes, the position of light illumination will also change accordingly. At this time, by rotating the threaded shaft 15, one end of the threaded shaft 15 will move into the lower semicircular groove 17 and the upper semicircular groove 12. Since the diameter of the inner port 1202 is smaller than that of the outer port 1201, the threaded shaft 15 will push the lens housing 7 to rotate upward when it moves, thereby adjusting the illumination angle so that it can still illuminate the corresponding position. Then, the connecting plate 20 is reset by the compression spring 22, the toothed plate 5 will lock the slide plate 3 again, and the protective sleeve 23 will be fitted on the outer wall of the threaded shaft 15 to avoid accidental contact.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of LED module 9 are commonplace and are all conventional methods or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary coaxial illumination mechanism for an ophthalmic surgical microscope, characterized in that, Include: The main lens (1), the bottom of the main lens (1) is connected with the objective lens connecting sleeve (2), the bottom end of the inside of the objective lens connecting sleeve (2) is provided with a large objective lens; The illumination assembly is used for lighting, the illumination assembly is arranged on one side of the objective lens connecting sleeve (2), the illumination assembly comprises a lens sleeve shell (7) and an LED module (9), a through hole (8) is formed in the outer wall of the objective lens connecting sleeve (2), one end of the lens sleeve shell (7) extends to the inside of the objective lens connecting sleeve (2) through the through hole (8), one end of the lens sleeve shell (7) is provided with an L-shaped cavity (10), the LED module (9) is installed in the L-shaped cavity (10), and a right-angle prism (11) is fixedly arranged at the bending part of the L-shaped cavity (10), and the LED module (9) is matched with the right-angle prism (11); The adjusting assembly is used for adjusting the position and angle of the LED module (9), and the adjusting assembly is arranged on the outer wall of the objective lens connecting sleeve (2).

2. An auxiliary co-axial illumination mechanism for an ophthalmic surgical microscope according to claim 1, characterized in that The adjusting assembly comprises a sliding plate (3), the outer wall of the objective lens connecting sleeve (2) is fixedly sleeved with a support (6), the sliding plate (3) is slidingly arranged on the top of the support (6), one end of the lens sleeve shell (7) is rotatably arranged on one side of the top of the sliding plate (3), a toothed plate (5) is slidingly arranged on the top of the support (6), one side of the sliding plate (3) is provided with a row of tooth grooves (4), the toothed plate (5) is matched with the tooth grooves (4), the bottom of the support (6) is fixedly provided with a bottom shell (19), the bottom of the support (6) is slidingly provided with a connecting plate (20), and the connecting plate (20) is located in the inside of the bottom shell (19), and one end of the connecting plate (20) is fixedly arranged with one end of the toothed plate (5).

3. An auxiliary co-axial illumination mechanism for an ophthalmic surgical microscope according to claim 2, characterized in that One side of the connecting plate (20) is provided with a groove, the inside of the groove is fixedly provided with a limiting rod (21), the inside of the bottom shell (19) is fixedly provided with a fixed plate (18), and the fixed plate (18) is slidingly sleeved on the outer wall of the limiting rod (21), the outer wall of the limiting rod (21) is sleeved with a compression spring (22), and the two ends of the compression spring (22) are fixedly arranged on the inner wall of one side of the groove and one side of the fixed plate (18) respectively.

4. An auxiliary co-axial illumination mechanism for an ophthalmic surgical microscope according to claim 3, characterized in that The adjusting assembly further comprises a threaded shaft (15), the top of the sliding plate (3) is fixedly provided with a supporting plate (14), and the supporting plate (14) is threadedly sleeved on the outer wall of the threaded shaft (15), the top of the sliding plate (3) is fixedly provided with an embedded block (16), the bottom of the lens sleeve shell (7) is provided with an embedded groove (13), and the embedded block (16) is located in the inside of the embedded groove (13), the top of the embedded block (16) is provided with a lower semicircular groove (17), the top inner wall of the embedded groove (13) is provided with an upper semicircular groove (12), one end of the threaded shaft (15) extends to the inside of the upper semicircular groove (12) and the lower semicircular groove (17).

5. An auxiliary co-axial illumination mechanism for an ophthalmic surgical microscope according to claim 4, characterized in that The two ends of the upper semicircular groove (12) are respectively an outer port (1201) and an inner port (1202), and the diameter of the outer port (1201) is larger than that of the inner port (1202).

6. An auxiliary co-axial illumination mechanism for an ophthalmic surgical microscope according to claim 5, characterized in that The rotation point of the lens sleeve shell (7) is provided with a torsional spring.

7. An auxiliary co-axial illumination mechanism for an ophthalmic surgical microscope according to claim 6, characterized in that One end of the connecting plate (20) is fixedly provided with a protection cylinder (23), and the threaded shaft (15) is located inside the protection cylinder (23).

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