Multi-channel endoscope lighting device

Abstract

The invention relates to the technical field of endoscopes, in particular to a multi-channel endoscope lighting device. The device is arranged at the tail end of the multi-channel endoscope and comprises an illumination assembly, a light source assembly and a light source assembly, the fixed bracket is fixedly connected with the multi-channel endoscope; the adjusting support is connected with the fixing support and the lighting assembly, and a magnetostriction piece is arranged on the adjusting support; and the second electromagnet is arranged on the fixed bracket, and the second electromagnet corresponds to the magnetostriction piece. The adjusting support comprises a vertical arm, the two ends of the vertical arm are connected with the fixing support and the lighting assembly respectively, the magnetostrictive piece is attached to the vertical arm, and the vertical arm is made of non-magnetostrictive materials. The adjusting support comprises an inclined arm, a cross arm and a vertical arm, the inclined arm and the cross arm form a triangular structure, the cross arm is connected with the fixing support, and a connecting seat is arranged at the joint of the vertical arm and the inclined arm and connected with the lighting assembly. The irradiation direction can be adjusted at any angle, and the irradiation range can also be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of endoscopes, and in particular to a multi-channel endoscope lighting device. Background Art

[0002] In today's medical field, multi-channel endoscopes have become indispensable auxiliary medical equipment. With its significant advantages such as minimally invasive, precise and rapid diagnosis and treatment, they have been widely used in various surgical and diagnostic scenarios. As its core component, the image acquisition and lighting device is generally integrated into the head of the endoscope, and the more common design is as a fixed component. In actual use, medical staff need to control the angle adjustment of the head from the back end according to specific needs to obtain clear and accurate images and appropriate lighting effects.

[0003] However, in the prior art, the endoscope disclosed in the patent application with publication number CN117017172A has certain limitations in structure. When adjusting the angle of its imaging element or lighting element, the range limitation is more prominent, and it can only be turned in a single dimension. In some complex surgical operations or diagnostic and treatment processes with high requirements for visual angles, it may not meet the requirements of all-round and multi-angle observation, thereby affecting the accuracy of the operation and the diagnostic and treatment effect. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention provides a multi-channel endoscope lighting device, which can adjust the irradiation direction to any angle, and the irradiation range can also be adjusted.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A multi-channel endoscope lighting device, arranged at the end of the multi-channel endoscope, comprises: An illumination assembly is movably disposed in the multi-channel endoscope; A fixed bracket, fixedly connected to the multi-channel endoscope; An adjusting bracket is connected to the fixing bracket and the lighting assembly, and a magnetostrictive component is arranged on the adjusting bracket; The second electromagnet is arranged on the fixed bracket, and the second electromagnet corresponds to the magnetostrictive element.

[0006] Furthermore, the adjustment bracket includes: a vertical arm, both ends of which are respectively connected to the fixed bracket and the lighting assembly, the magnetostrictive element is attached to the vertical arm, and the vertical arm is made of non-magnetostrictive material.

[0007] Furthermore, the adjustment bracket includes: an oblique arm and a horizontal arm, the vertical arm, the oblique arm and the horizontal arm form a triangular structure, the horizontal arm is connected to the fixed bracket, and a connecting seat is provided at the connection between the vertical arm and the oblique arm, and the connecting seat is connected to the lighting assembly.

[0008] Furthermore, the lighting assembly includes an LED light source and a convex lens, and the distance between the LED light source and the convex lens is adjustable.

[0009] Furthermore, the lighting assembly includes a first bracket, and the first bracket includes: An inner fixing frame, in which the convex lens is fixedly arranged; An outer fixing frame is arranged outside the inner fixing frame; The long grooves are arranged between the inner fixing frame and the outer fixing frame. A connecting beam is formed between adjacent long grooves. Two ends of the connecting beam are respectively connected to the inner fixing frame and the outer fixing frame.

[0010] Further, the lighting assembly includes: a second bracket and a third bracket; The second bracket includes: An inner cylinder, fixedly connected to the inner fixing frame; A movable plate is arranged on the outer side of the inner cylinder; A permanent magnet is disposed on the moving plate; The third bracket includes: A connecting plate, fixedly connected to the outer fixing frame; The first electromagnet is arranged on the connecting plate, and the first electromagnet corresponds to the permanent magnet.

[0011] Furthermore, a connecting piece is provided on the connecting plate, a hollow is provided between the connecting piece and the connecting plate, and the connecting piece is connected to the adjusting bracket.

[0012] Furthermore, the connecting plate is provided with an inner circle, a reflector is embedded in the inner circle, and the LED light source is arranged in the reflector.

[0013] Furthermore, the outer edge of the reflector protrudes from the inner ring and can be slidably inserted into the inner cylinder.

[0014] Furthermore, the end of the multi-channel endoscope is sealed with a transparent protective cover protruding outward, and the lighting assembly is located inside the transparent protective cover. Beneficial effects of the present invention: (1) Magnetostrictive elements have a unique physical property, that is, when they are placed in a magnetic field, they will change in the length direction. This change is not random or irregular, but is closely related to the strength of the applied magnetic field.

[0015] When the magnetostrictive element changes length due to the magnetic field, it will act as a key driving factor, causing the adjustment bracket connected to it to bend accordingly. The bending deformation of the adjustment bracket can effectively amplify and transform the tiny length change of the magnetostrictive element, thereby adjusting the direction of the irradiation component. And multiple adjustment brackets work together to flexibly adjust the irradiation direction at any angle.

[0016] (2) The adjusting bracket adopts a triangular structure. The triangular structure has a natural stability advantage in mechanical principles and can withstand large external forces while maintaining its own relative stability.

[0017] When the magnetostrictive element changes length under the influence of the magnetic field, it will exert a force on one of the sides of the triangular structure, causing the side to deform. Since the three sides of the triangular structure are interrelated and mutually restricted, the deformation of one side will affect the entire structure, causing the entire triangular structure to deform accordingly.

[0018] Compared with the traditional single straight beam deformation method, this triangular structure adjustment bracket shows significant advantages. When a single straight beam is deformed by force, it is easy to bend, twist and other unstable deformations, and once it is slightly disturbed by the outside world, it may cause a large deviation in the illumination direction of the lighting component. The triangular structure adjustment bracket, with its stable geometric characteristics, can better maintain its shape and position when facing various complex working conditions and external interference, making it easier to maintain a stable state of the illumination direction.

[0019] (3) As the main emitter of light, the LED light source has certain divergent characteristics. The convex lens has the ability to converge light. When light passes through the convex lens, it will undergo different degrees of refraction and convergence depending on the focal length of the convex lens and its relative position to the light source. When we gradually change the distance between the LED light source and the convex lens, the propagation path and divergence of the light after refraction through the convex lens will also change, thereby adjusting the size of the illumination range. This adjustment method can meet the diverse needs for illumination range in different scenarios.

[0020] (4) The convex lens is fixed by a specially designed connecting beam. This connecting beam is not a completely rigid restrictive structure, but rather gives the convex lens a certain range of motion. This design enables the convex lens to be fine-tuned within a certain spatial dimension, thus laying the foundation for subsequent optical performance adjustments.

[0021] The distance between the convex lens and the LED light source can be adjusted by an electromagnet. This adjustment method can accurately push the convex lens to move along a predetermined path, thereby effectively changing the distance between the convex lens and the LED light source. This adjustment method is not only highly accurate and can meet the demand for precise control of the irradiated light, but also has a simple structure and fast response.

[0022] (5) Through the optimized design and reasonable layout of each component, the overall volume can be greatly reduced without affecting its basic functions, thus meeting the needs of small equipment integration. This feature is of great significance for multi-channel endoscopes. Because the end space of a multi-channel endoscope is usually very limited, the device can be integrated at the end of a multi-channel endoscope with its miniaturized advantages and work together with other functional modules of the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the structure of a multi-channel endoscope; Figure 2 yes Figure 1 A local enlarged view of the position of species A; Figure 3 The structure of the present invention is schematically shown in FIG. Figure 1 ; Figure 4 The structure of the present invention is schematically shown in FIG. Figure 2 ; Figure 5 is an exploded view of the present invention; Figure 6 is a partial cross-sectional view of the present invention; Figure 7 is a schematic structural diagram of a first bracket; Figure 8 is a schematic structural diagram of a second bracket; Fig. 9 is a schematic diagram of the structure of the third bracket; Fig.10 is a schematic diagram of the structure of the adjustment bracket; Fig.11 It is a structural schematic diagram of the fixed bracket.

[0025] In the picture: 1. Transparent protective cover, 2. Convex lens, 3. First bracket, 4. Second bracket, 5. Third bracket, 6. Reflector, 7. LED light source, 8. Adjustment bracket, 9. Fixed bracket, 10. Multi-channel endoscope; 301. inner fixing frame, 302. long slot, 303. connecting beam, 304. outer fixing frame; 401. moving plate, 402. permanent magnet, 403. inner cylinder; 501. connecting plate, 502. first electromagnet, 503. inner ring, 504. connecting member; 801. oblique arm, 802. vertical arm, 803. horizontal arm, 804. magnetostrictive element, 805. connecting seat; 901. Fixed seat, 902. Second electromagnet. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings.

[0027] A multi-channel endoscope lighting device is arranged at the execution end of the multi-channel endoscope 10. Its specific structure includes a lighting component, which is movably arranged in the multi-channel endoscope 10, and the irradiation direction and irradiation range of the lighting component can be adjusted. The fixed bracket 9 is fixedly connected to the multi-channel endoscope 10. The adjustment bracket 8 connects the fixed bracket 9 and the lighting component, and a magnetostrictive component 804 is arranged on the adjustment bracket 8. The second electromagnet 902 is arranged on the fixed bracket 9, and the second electromagnet 902 corresponds to the magnetostrictive component 804. In a specific implementation, the fixed bracket 9 includes a fixed seat 901, and the fixed seat 901 is fixedly connected to the multi-channel endoscope 10. Three second electromagnets 902 are evenly distributed on the fixed seat 901, and the adjustment bracket 8 also has three corresponding ones. Three second electromagnets 902 and three adjustment brackets 8 are the minimum number to realize its function. In a specific implementation, the number of the second electromagnets 902 and the adjustment bracket 8 is not less than three.

[0028] The adjustment bracket 8 includes a vertical arm 802, both ends of which are connected to the fixed bracket 9 and the lighting assembly respectively. The magnetostrictive element 804 is attached to the vertical arm 802, and the vertical arm 802 is made of non-magnetostrictive material.

[0029] The magnetostrictive element 804 has a unique physical property, that is, when it is in a magnetic field environment, changes will occur in the length direction. This change is not random or irregular, but is closely related to the intensity of the applied magnetic field. When the magnetostrictive element 804 changes in length due to the magnetic field, it will act as a key driving factor, causing the vertical arm 802 of the non-magnetostrictive material connected thereto to undergo corresponding bending deformation. The bending deformation of the vertical arm 802 can effectively amplify and transform the slight length change of the magnetostrictive element 804, thereby achieving adjustment of the direction of the irradiation component. And the vertical arms 802 on the multiple adjustment brackets 8 work together to flexibly adjust the irradiation direction of the irradiation component at any angle.

[0030] The specific structure of the adjustment bracket 8 also includes an oblique arm 801 and a horizontal arm 803. The vertical arm 802, the oblique arm 801 and the horizontal arm 803 are connected in sequence to form a triangular structure. The vertical arm 802, the oblique arm 801 and the horizontal arm 803 are all made of non-magnetostrictive materials. The horizontal arm 803 is connected to the fixed bracket 9. The connection between the vertical arm 802 and the oblique arm 801 is provided with a connecting seat 805, and the connecting seat 805 is connected to the lighting assembly.

[0031] The adjustment bracket 8 adopts a triangular structure. The triangular structure has a natural stability advantage in terms of mechanical principles and can withstand large external forces while maintaining its own relative stability. When the magnetostrictive element 804 changes in length under the action of the magnetic field, a force is applied to one of the sides of the triangular structure, thereby causing the side to deform. Since the three sides of the triangular structure are interrelated and mutually restricted, the deformation of one side will affect the entire structure, causing the entire triangular structure to deform accordingly.

[0032] Compared with the traditional single straight beam deformation method, this triangular structure adjustment bracket shows significant advantages. When a single straight beam is deformed by force, it is easy to bend, twist, and other unstable deformations, and once it is slightly disturbed by the outside world, it may cause a large deviation in the illumination direction of the lighting component. The triangular structure adjustment bracket 8, with its stable geometric characteristics, can better maintain its own shape and position when facing various complex working conditions and external interference, and it is easier to maintain a stable state of the illumination direction.

[0033] The lighting assembly comprises an LED light source 7 and a convex lens 2, and the distance between the LED light source 7 and the convex lens 2 is adjustable.

[0034] As the main emitter of light, the LED light source 7 emits light with certain divergence characteristics. The convex lens 2 has the ability to converge light. When the light passes through the convex lens 2, it will undergo different degrees of refraction and convergence effects depending on the focal length of the convex lens 2 and its relative position to the LED light source 7. When we gradually change the distance between the LED light source 7 and the convex lens 2, the propagation path and divergence of the light after refraction through the convex lens 2 will also change, thereby adjusting the size of the illumination range of the lighting component. This adjustment method can meet the diverse needs for the illumination range in different scenarios.

[0035] In order to achieve the above functions, the structure of the lighting assembly includes a first bracket 3. The first bracket 3 includes an inner fixing frame 301, and the convex lens 2 is fixedly arranged in the middle of the inner fixing frame 301. The outer fixing frame 304 is arranged on the outer side of the inner fixing frame 301. The long groove 302 is opened between the inner fixing frame 301 and the outer fixing frame 304, and a connecting beam 303 is formed between adjacent long grooves 302, and the two ends of the connecting beam 303 are respectively connected to the inner fixing frame 301 and the outer fixing frame 304. The connecting beam 303 adopts an arc structure. When the relative position of the outer fixing frame 304 and the inner fixing frame 301 changes, it can cause elastic deformation of the connecting beam 303.

[0036] The convex lens 2 is fixed by a specially designed connecting beam 303, which is not a completely rigid limiting structure, but gives a certain range of motion to the convex lens 2. This design enables the convex lens 2 to be fine-tuned in position within a certain spatial dimension, thus laying a foundation for subsequent optical performance adjustment.

[0037] The connection structure of the arc-shaped connection beam 303 is simple in structure and can save space, and is convenient for miniaturization application.

[0038] The lighting assembly also includes a second bracket 4 and a third bracket 5. The second bracket 4 includes an inner cylinder 403, and the inner cylinder 403 is fixedly connected to the inner fixed frame 301. The movable plate 401 is arranged on the outer side of the inner cylinder 403. The permanent magnet 402 is arranged on the movable plate 401. The third bracket 5 includes a connecting plate 501, and the connecting plate 501 is fixedly connected to the outer fixed frame 304. The LED light source 7 is arranged on the third bracket 5 through the reflector 6. The first electromagnet 502 is arranged on the connecting plate 501, and the first electromagnet 502 corresponds to the permanent magnet 402. Through the first electromagnet 502 and the permanent magnet 402, the external position of the inner fixed frame 301 relative to the outer fixed frame 304 can be adjusted, thereby adjusting the relative position between the LED light source 7 and the convex lens 2.

[0039] The distance between the convex lens 2 and the LED light source 7 can be adjusted by the electromagnet. This adjustment method can accurately push the convex lens 2 to move along a predetermined moving path, thereby effectively changing the distance between the convex lens 2 and the LED light source 7. This adjustment method is not only highly accurate and can meet the demand for precise control of the irradiated light, but also has a simple structure and fast response.

[0040] A connecting piece 504 is provided on the connecting plate 501 , a hollow is provided between the connecting piece 504 and the connecting plate 501 , and the connecting piece 504 is connected to the adjusting bracket 8 .

[0041] The hollow design gives the connector 504 a certain degree of elastic deformation margin when subjected to force. When the adjustment bracket 8 is deformed, the connector 504 can flexibly adapt to the shape change of the adjustment bracket 8 by virtue of its own elastic deformation ability, thereby effectively avoiding problems such as loose connection and stress concentration that may be caused by the deformation of the adjustment bracket 8. Moreover, the existence of this elastic deformation margin makes it smoother and more efficient for multiple adjustment brackets 8 to work together, and it is more convenient to accurately adjust the illumination direction of the lighting assembly.

[0042] The connecting plate 501 is provided with an inner circle 503 , a reflector 6 is embedded in the inner circle 503 , and the LED light source 7 is arranged in the reflector 6 .

[0043] In the lighting system, the reflector 6 plays a vital role. It can effectively converge the light emitted by the LED light source 7, and through its special reflective surface design and optical principle, it can concentrate the originally scattered light, thereby enhancing the directionality and intensity of the light, so that the light can be more concentrated and effectively used in a specific area.

[0044] The outer edge of the reflector 6 protrudes from the inner ring 503 and is slidably inserted into the inner cylinder 403 .

[0045] During the operation of the entire device, this structural design can accurately guide the second bracket 4. Through this guiding mechanism, when the second bracket 4 drives the first bracket 3 to move, the first bracket 3 can also always slide stably along the predetermined track of the reflector 6 without deviation or shaking. In this way, the convex lens 2 installed on the first bracket 3 can also maintain a stable position, thereby ensuring that the center of the convex lens 2 is always accurately aligned with the center of the reflector 6.

[0046] The end of the multi-channel endoscope 10 is sealed with a transparent protective cover 1 protruding outwards. The transparent protective cover 1 is fixedly connected to the end of the multi-channel endoscope 10 , and the lighting component is located inside the transparent protective cover 1 .

[0047] The transparent protective cover 1 also has excellent sealing performance, and its tightly fitting edges and high-quality sealing materials can effectively prevent various external objects from entering the internal space of the transparent protective cover 1. This sealing effect greatly reduces the risk of short circuit, corrosion, wear and other faults of the lighting component caused by the intrusion of foreign objects from the outside, effectively ensuring that the lighting component is always in a normal operating state, and providing a solid guarantee for its stable and reliable continuous operation.

[0048] This technical solution can significantly reduce the overall volume without affecting its basic functions through the optimized design and reasonable layout of each component, as well as the original driving form, so as to meet the needs of small equipment integration. This feature is of great significance for multi-channel endoscopes. Because the end space of a multi-channel endoscope is usually very limited, and this device can be integrated at the end of a multi-channel endoscope with its miniaturized advantages, and work together with other functional modules of the endoscope.

[0049] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A multi-channel endoscope lighting device, arranged at the end of a multi-channel endoscope (10), characterized in that: include: An illumination assembly, movably disposed in the multi-channel endoscope (10); A fixed bracket (9) fixedly connected to the multi-channel endoscope (10); An adjusting bracket (8) connected to the fixing bracket (9) and the lighting assembly, wherein a magnetostrictive element (804) is provided on the adjusting bracket (8); The second electromagnet (902) is arranged on the fixed bracket (9), and the second electromagnet (902) corresponds to the magnetostrictive element (804).

2. A multi-channel endoscope lighting device according to claim 1, characterized in that: The adjustment bracket (8) comprises a vertical arm (802), two ends of the vertical arm (802) are respectively connected to the fixed bracket (9) and the lighting assembly, the magnetostrictive component (804) is attached to the vertical arm (802), and the vertical arm (802) is made of non-magnetostrictive material.

3. A multi-channel endoscope lighting device according to claim 2, characterized in that: The adjustment bracket (8) comprises: an oblique arm (801) and a horizontal arm (803); the vertical arm (802), the oblique arm (801) and the horizontal arm (803) form a triangular structure; the horizontal arm (803) is connected to the fixed bracket (9); a connecting seat (805) is provided at the connection between the vertical arm (802) and the oblique arm (801); and the connecting seat (805) is connected to the lighting assembly.

4. The multi-channel endoscope lighting device according to claim 1, characterized in that: The lighting assembly comprises an LED light source (7) and a convex lens (2), and the distance between the LED light source (7) and the convex lens (2) is adjustable.

5. A multi-channel endoscope lighting device according to claim 4, characterized in that: The lighting assembly comprises a first bracket (3), wherein the first bracket (3) comprises: An inner fixing frame (301), wherein the convex lens (2) is fixedly arranged in the inner fixing frame (301); An outer fixing frame (304) is arranged outside the inner fixing frame (301); The long grooves (302) are formed between the inner fixing frame (301) and the outer fixing frame (304), and connecting beams (303) are formed between adjacent long grooves (302). The two ends of the connecting beams (303) are respectively connected to the inner fixing frame (301) and the outer fixing frame (304).

6. The multi-channel endoscope lighting device according to claim 5, characterized in that: The lighting assembly comprises: a second bracket (4) and a third bracket (5); The second bracket (4) comprises: An inner cylinder (403) fixedly connected to the inner fixing frame (301); A movable plate (401) is arranged outside the inner cylinder (403); A permanent magnet (402) is disposed on the movable plate (401); The third bracket (5) comprises: A connecting plate (501) fixedly connected to the outer fixing frame (304); A first electromagnet (502) is arranged on the connecting plate (501), and the first electromagnet (502) corresponds to the permanent magnet (402).

7. The multi-channel endoscope lighting device according to claim 6, characterized in that: A connecting piece (504) is provided on the connecting plate (501), a hollow is provided between the connecting piece (504) and the connecting plate (501), and the connecting piece (504) is connected to the adjusting bracket (8).

8. The multi-channel endoscope lighting device according to claim 6, characterized in that: The connecting plate (501) is provided with an inner ring (503), a reflector (6) is embedded in the inner ring (503), and the LED light source (7) is arranged in the reflector (6).

9. The multi-channel endoscope lighting device according to claim 8, characterized in that: The outer edge of the reflector (6) protrudes from the inner ring (503) and can be slidably inserted into the inner cylinder (403).

10. The multi-channel endoscope lighting device according to claim 1, characterized in that: The end of the multi-channel endoscope (10) is sealed with a transparent protective cover (1) protruding outwards, and the lighting assembly is located inside the transparent protective cover (1).

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