Light splitting optical fiber of operation lighting system

Abstract

The invention provides a light-splitting optical fiber of an operation illumination system, and relates to the technical field of medical illumination, the light-splitting optical fiber comprises a light-emitting assembly and an optical fiber body, the light-emitting assembly is used for generating a linear light beam, a first end of the optical fiber body is dispersed into a plurality of optical fiber bodies, protective sleeves are arranged on the outer sides of the optical fiber bodies, and transparent coating end heads are arranged at the end parts of the optical fiber bodies; a connector assembly is fixedly arranged at the second end of the optical fiber body. The light-emitting assembly and the optical fiber body are adopted to form a medical illumination system, the optical fiber body is a single-strand plastic optical fiber, the light-emitting assembly generates a linear light beam, the light beam is transmitted to the other end along the optical fiber body, and the use requirement of medical illumination can be met; and the cost of the single-strand plastic optical fiber is low, the single-strand plastic optical fiber is not easy to break during bending adjustment, and the comprehensive benefit brought by specific application is high.

Description

Technical Field

[0001] The present invention relates to the technical field of medical lighting, in particular to a light-splitting optical fiber for a surgical lighting system. Background Art

[0002] In order to ensure that medical staff can operate accurately and efficiently during surgery, surgical lighting equipment is required. The current mainstream products are surgical shadowless lamps, surgical auxiliary lamps and endoscope products; surgical shadowless lamps create a shadowless effect through multiple light sources and are the mainstream and main lighting equipment; surgical auxiliary lamps are easy to move and can provide specific lighting to local areas. Both products are non-contact lighting equipment; endoscope products generate light energy from the endoscope's cold light source, which is transmitted to the endoscope through a light guide structure of an optical fiber structure. The endoscope is then placed inside the human body for lighting, and has obvious advantages in lighting specific parts.

[0003] Currently used endoscope lighting products use multiple optical fibers to guide light, resulting in high production costs and the risk of broken fibers when pulled, resulting in low overall efficiency. To address this issue, the present invention provides a light-splitting optical fiber for a surgical lighting system. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a splitter optical fiber for a surgical lighting system, which solves the problems of high production costs, risk of wire breakage when pulling, and low overall benefits of currently used endoscope lighting products.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A light-splitting optical fiber for a surgical lighting system, comprising: A light-emitting component, wherein the light-emitting component is used to generate a straight light beam; An optical fiber body, wherein the first end of the optical fiber body is dispersed into multiple optical fiber bodies, a protective sheath is provided on the outside of the optical fiber body, and a transparent coated end is provided at the end of the optical fiber body, the connector assembly is fixedly connected to the light-emitting assembly, and the linear light beam generated by the light-emitting assembly corresponds to the center of the optical fiber body; The optical fiber body comprises, from inside to outside, an optical fiber body, a main heat dissipation layer, and a protective layer near the second end. The optical fiber body is a single strand of plastic optical fiber with a number less than or equal to 5, and the optical fiber body is centrally symmetrically distributed.

[0006] Preferably, the main heat dissipation layer is a metal copper layer, and the protective layer is a polytetrafluoroethylene layer.

[0007] Preferably, the joint assembly comprises: A thickened heat dissipation layer, which is arranged on the outside of the optical fiber body and is integrally arranged with the main body heat dissipation layer; An aluminum alloy jacket, the aluminum alloy jacket being disposed on the outside of the optical fiber body, and having an end face of the aluminum alloy jacket away from the thickened heat dissipation layer being a polished end face, the thickened heat dissipation layer and the aluminum alloy jacket having opposite ends interlocked in a stepped manner, and the aluminum alloy jacket being located on the inside of the thickened heat dissipation layer at the interlocking portion of the stepped manner; The joint outer layer is arranged on the outside of the thickened heat dissipation layer and the aluminum alloy jacket, and the joint outer layer and the protective layer are integrally arranged; The end of the outer layer of the joint facing the light-emitting component is fixedly connected with a buckle.

[0008] Preferably, the light emitting component includes: A light emitting base, wherein a second cavity is formed at one end of the light emitting base facing the optical fiber body, and the second cavity corresponds to the connector assembly; A light guide base, the light guide base being fixedly disposed inside the light emitting base, the light guide base having a circular hole at its center, a first annular protrusion being fixedly connected to the inner wall of the light guide base, and a square groove being formed at one end of the light guide base facing the inner side of the light emitting base; An LED light source board, wherein the LED light source board is fixedly disposed inside the square slot, with the light emitting surface of the LED light source board facing the light guide seat; A coupling lens, wherein the coupling lens is a biconvex lens, and a second annular protrusion is fixedly provided on the outer side of the coupling lens; A light guide, one end of which is threadedly fixedly connected to the inner side of the light guide seat, and the end of the light guide and the first annular protrusion clamp the second annular protrusion, and a light guide member is provided at the center of the light guide.

[0009] Preferably, a side surface of the light emitting base is provided with an annular opening corresponding to the undercut piece.

[0010] Preferably, a first chamber is provided at one end of the light emitting seat away from the optical fiber body, the wall thickness between the first chamber and the second chamber is less than 1 cm, a heat dissipation plate is fixedly provided inside the first chamber, a rear mesh cover is fixedly installed at the port of the first chamber, and a heat dissipation part is provided on the side wall of the first chamber.

[0011] Preferably, a water tank and a micro pump are fixedly installed inside the first chamber, a semiconductor cooling plate is provided on the side wall of the water tank, a water inlet end of the micro pump is connected to the water tank, a water outlet end of the micro pump is connected to the second outer tube, and a side wall of the water tank is fixedly connected to the first outer tube; The end of the joint assembly and the outer end of the light guide seat form an annular chamber. The second outer tube and the first outer tube are both connected to the light emitting seat and communicate with the annular chamber.

[0012] Preferably, multiple sets of mounting brackets are fixedly mounted on the outer side of the light emitting base, and the mounting brackets are L-shaped.

[0013] Preferably, the centers of the light guide, coupling lens, connector assembly, and optical fiber body are all on the same axis.

[0014] Preferably, the light guide is a quartz optical fiber light guide.

[0015] The present invention provides a light-splitting optical fiber for a surgical lighting system. It has the following beneficial effects: The present invention uses a light-emitting component and an optical fiber body to form a medical lighting system. The optical fiber body is a single-strand plastic optical fiber. The light-emitting component generates a linear light beam, which is transmitted along the optical fiber body to the other end, thereby meeting the use requirements of medical lighting. In addition, the cost of the single-strand plastic optical fiber is low and it is not easy to break when bending and adjusting. The specific application brings high comprehensive benefits.

[0016] The present invention designs a main body heat dissipation layer with good thermal conductivity, which avoids heat concentration in the optical fiber body and causes damage to the optical fiber body, thereby extending the service life of the splitting optical fiber; and also designs a connector assembly, which includes a thickened heat dissipation layer, an aluminum alloy sleeve, and a connector outer layer. The end face of the aluminum alloy sleeve away from the thickened heat dissipation layer is a polished end face, and the polished end face can reflect divergent light, so that as much light as possible is transmitted along the optical fiber body; and the opposite ends of the thickened heat dissipation layer and the aluminum alloy sleeve are interlocked in a step-like manner, and the aluminum alloy sleeve is located on the inner side of the thickened heat dissipation layer at the step-like interlocking portion. It relies on the thickened heat dissipation layer and the aluminum alloy sleeve to cooperate with each other to achieve rapid heat transfer, especially at the connection part between the light-emitting assembly and the optical fiber body, where more light is diverged and more heat is generated. It dissipates heat quickly, which can increase the service life of the optical fiber body.

[0017] The present invention, by designing a multi-layer heat dissipation structure composed of a protective layer, an optical fiber body, a main body heat dissipation layer, etc., exhibits excellent performance when in use.

[0018] The present invention designs a plurality of single optical fiber bodies, so that the internal light transmission is more uniform and the illumination beam is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 2 This is a front view of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 3 for Figure 2 Schematic diagram of the cross section at AA in the middle; Figure 4 A vertical cross-sectional view of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 5A three-dimensional schematic diagram of a light-emitting optical fiber of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 6 This is a transverse cross-sectional view of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 7 This is an exploded view of a light-emitting component of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 8 A three-dimensional schematic diagram of a light guide seat of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 9 This is a three-dimensional schematic diagram of the tail of a light-emitting component of a light-splitting optical fiber of a surgical lighting system proposed by the present invention; Figure 10 This is a three-dimensional schematic diagram of a light-emitting base of a light-splitting optical fiber of a surgical lighting system proposed by the present invention.

[0020] Among them, 1. optical fiber body; 101. protective layer; 102. optical fiber body; 103. main body heat dissipation layer; 2. transparent covering end; 3. protective cover; 4. connector assembly; 401. thickened heat dissipation layer; 402. aluminum alloy sleeve; 403. connector outer layer; 404. buckle; 5. light-emitting assembly; 501. light-emitting seat; 502. heat dissipation plate; 503. water tank; 504. rear mesh cover; 505. micro pump; 506. mounting bracket; 507. first outer tube; 508. second outer tube; 509. LED light source board; 5010. light guide seat; 50101. first annular protrusion; 50102. square groove; 5011. coupling lens; 50111. second annular protrusion; 5012. light guide; 5013. heat dissipation part; a. first chamber; b. second chamber; c. annular chamber. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1 like Figures 1-10 As shown, an embodiment of the present invention provides a splitter optical fiber for a surgical lighting system, which includes: a light-emitting component 5 and an optical fiber body 1. The light-emitting component 5 is used to generate a straight light beam, and the optical fiber body 1 is used to transmit light. The two together constitute a medical lighting system. The optical fiber body 1 is a flexible optical fiber. During the operation, the position of the first end of the optical fiber body 1 can be adjusted according to the use requirements, so as to better meet the medical lighting needs.

[0023] Specifically, the first end of the optical fiber body 1 is dispersed into multiple optical fiber bodies 102, which can be used for multiple lighting needs. A protective cover 3 is provided on the outside of the optical fiber body 102, and a transparent coated end head 2 is provided at the end of the optical fiber body 102. The transparent coated end head 2 is used to protect the end of the optical fiber body 102. The second end of the optical fiber body 1 is fixedly provided with a connector assembly 4. The connector assembly 4 plays the role of connecting. The connector assembly 4 is fixedly connected to the light-emitting assembly 5, and the straight light beam generated by the light-emitting assembly 5 corresponds to the center of the optical fiber body 1, thereby adapting to the conduction of light.

[0024] Generally, a red light source with a central wavelength of 630nm and an optical power of approximately 3W is used, with a voltage of 3.5V and a current of 12A. After assembly, the light intensities at the ends of the optical fiber main body 1 are 52mW and 59mW, respectively, with a relative error of approximately 7%. The optical fiber main body 1 near the second end includes, from the inside to the outside, a fiber body 102, a main body heat dissipation layer 103, and a protective layer 101. The optical fiber body 102 is a single-strand plastic optical fiber with a number of less than or equal to 5, and the optical fiber bodies 102 are distributed symmetrically around the center. For example, one optical fiber body 102 can be selected, which is located at the center of the main body heat dissipation layer 103. For example, there are multiple optical fiber bodies 102, and the multiple optical fiber bodies 102 are distributed in a ring array.

[0025] Near the second end In the optical fiber body 1, the main body heat dissipation layer 103 is a metal copper layer. The metal copper material has good thermal conductivity, which prevents heat from concentrating in the optical fiber body 102 and causing damage; the protective layer 101 is a polytetrafluoroethylene layer. The polytetrafluoroethylene layer is the outermost layer for users to grasp to prevent the heat of the metal copper layer from affecting use.

[0026] In one embodiment, the optical fiber body 102 is an organic glass optical fiber with a diameter of 1.5 mm and a length of 400 mm. Preferably, 2 to 4 optical fibers are used to ensure that the optical fiber body 102 has good flexibility and is easy to use.

[0027] In one embodiment, the joint assembly 4 includes: a thickened heat dissipation layer 401 , an aluminum alloy jacket 402 , a joint outer layer 403 , and a fastener 404 .

[0028] Among them, the thickened heat dissipation layer 401 is arranged on the outside of the optical fiber body 102, and the thickened heat dissipation layer 401 is integrally arranged with the main heat dissipation layer 103. The thickened heat dissipation layer 401 and the main heat dissipation layer 103 are both made of metal copper, which plays a role in heat dissipation. The aluminum alloy sleeve 402 is arranged on the outside of the optical fiber body 102, and the end face of the aluminum alloy sleeve 402 away from the thickened heat dissipation layer 401 is a polished end face, so that the end face of the aluminum alloy sleeve 402 away from the thickened heat dissipation layer 401 has the effect of reflecting light. The opposite ends of the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402 are interlocked in a step-like manner, and the step-like interlocking The aluminum alloy sleeve 402 is located on the inner side of the thickened heat dissipation layer 401. Specifically, the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402 are both step ring structures, which can maximize the contact area of the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402. The joint outer layer 403 is arranged on the outside of the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402, and the joint outer layer 403 is integrated with the protective layer 101. The joint outer layer 403 is fixedly connected to the end of the light-emitting component 5 with a reverse fastener 404. The joint outer layer 403, the protective layer 101 and the reverse fastener 404 can be manufactured using an integrated injection molding process.

[0029] In the above solution, the connector assembly 4 and the light emitting assembly 5 are detachable, and when the optical fiber main body 1 is damaged, the optical fiber main body 1 can be replaced.

[0030] In one embodiment, in order to ensure the stability of the connection between the connector assembly 4 and the light-emitting assembly 5, on the basis of the above-mentioned connection of the undercut 404, heat-resistant glue can also be used to assist the connection to ensure a certain degree of sealing at the connection.

[0031] In one embodiment, the light emitting assembly 5 includes a light emitting base 501 , a light guide base 5010 , an LED light source board 509 , a coupling lens 5011 and a light guide 5012 .

[0032] The light emitting base 501 is provided with a second chamber b at one end facing the optical fiber body 1, and the second chamber b corresponds to the connector assembly 4. The light guide base 5010, the LED light source plate 509, the coupling lens 5011 and the light guide 5012 are all located inside the second chamber b. The light emitting base 501 can be made of aluminum by milling. The light guide base 5010 is fixedly arranged inside the light emitting base 501. The light guide base 5010 and the second chamber b are fixed by interference fit. The center of the light guide base 5010 has a circular hole, and the inner wall of the light guide base 5010 is fixedly connected to the first annular protrusion 50101. The light guide base 5010 faces the inside of the light emitting base 501. A square groove 50102 is provided at one end of the side, and the LED light source board 509 is fixedly arranged inside the square groove 50102, and the light-emitting surface of the LED light source board 509 faces the light guide seat 5010, and the coupling lens 5011 is a double convex lens, generally a double convex lens with a diameter of 6 mm and a focal length of 8 mm is selected, and a second annular protrusion 50111 is fixedly provided on the outer side of the coupling lens 5011, and one end of the light guide light 5012 is threadedly fixedly connected to the inner side of the light guide seat 5010, and the end of the light guide light 5012 and the first annular protrusion 50101 clamp the second annular protrusion 50111, and a light guide part is provided in the center of the light guide light 5012.

[0033] The principle of the light-emitting component 5 is as follows: the LED light source board 509 generates a light source, and the coupling lens 5011 with a double convex lens structure gathers the light to form a light parallel to the central circular hole of the light guide base 5010. The remaining divergent light can be refracted inside the light guide base 5010, and the light is then transmitted through the light guide 5012, so that the light is transmitted along the axis, which facilitates the light to connect with the optical fiber body 1.

[0034] In one embodiment, a ring-shaped opening corresponding to the reverse fastener 404 is opened on the side of the light-emitting base 501, and the inner cross-section of the ring-shaped opening is L-shaped. The reverse fastener 404 is deformed and inserted into the innermost side of the ring-shaped opening, and the end of the reverse fastener 404 is engaged with the step inside the ring-shaped opening to achieve fixation.

[0035] In one embodiment, in order to ensure that the second chamber b of the light emitting base 501 can better dissipate heat, a first chamber a is opened at the end of the light emitting base 501 away from the optical fiber body 1. The wall thickness between the first chamber a and the second chamber b is less than 1 cm. The wall panel between the first chamber a and the second chamber b can conduct heat. A heat dissipation plate 502 is fixedly arranged inside the first chamber a. The heat dissipation plate 502 dissipates heat from the wall panel between the first chamber a and the second chamber b. A rear mesh cover 504 is fixedly installed on the port of the first chamber a. The rear mesh cover 504 is mesh-shaped and easy for air flow. The side wall of the first chamber a is provided with a heat dissipation portion 5013, and the heat dissipation portion 5013 is a heat dissipation hole structure.

[0036] In one embodiment, a water tank 503 and a micro pump 505 are fixedly installed inside the first chamber a, and a semiconductor refrigeration plate is installed on the side wall of the water tank 503. The cooling surface of the semiconductor refrigeration plate faces the side wall of the water tank 503, and the heating surface faces the outside. The water inlet end of the micro pump 505 is connected to the water tank 503, and the water outlet end of the micro pump 505 is connected to the second outer tube 508. The side of the water tank 503 is fixedly connected to the first outer tube 507. The end of the joint assembly 4 and the outer end of the light guide seat 5010 form an annular chamber c. The inside of the annular chamber c can be filled with cooling water to dissipate heat for the light guide seat 5010. The second outer tube 508 and the first outer tube 507 are both connected to the light-emitting seat 501, and the second outer tube 508 and the first outer tube 507 are both connected to the annular chamber c; wherein, the water tank 503, the micro pump 505, the second outer tube 508, the annular chamber c, and the first outer tube 507 constitute a circulating water circuit.

[0037] During the above-mentioned water cooling circulation process, the micro pump 505 pumps the cold water inside the water tank 503 into the annular chamber c through the second outer tube 508. The cold water inside the annular chamber c cools the light guide seat 5010, and then the water flows back to the water tank 503 through the first outer tube 507. During this process, the semiconductor refrigeration plate works to cool the water inside the water tank 503.

[0038] In one embodiment, multiple sets of mounting brackets 506 are fixedly mounted on the outer side of the light emitting base 501. The mounting brackets 506 are L-shaped, so that the light emitting base 501 can be fixed on the outer wall, wall or bracket of other equipment for easy use.

[0039] In one embodiment, the centers of the light guide 5012, the coupling lens 5011, the connector assembly 4, and the optical fiber body 1 are all on the same axis, thereby ensuring that the pipeline can be better conducted in the light guide 5012, the coupling lens 5011, the connector assembly 4, and the optical fiber body 1, thereby reducing losses.

[0040] In one embodiment, the light guide 5012 is a quartz fiber light guide with a light guide diameter of 5 mm. Quartz fiber light guides are easily available.

[0041] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A light-splitting optical fiber for a surgical lighting system, characterized in that: include: A light-emitting component (5), the light-emitting component (5) being used to generate a linear light beam; An optical fiber body (1), wherein a first end of the optical fiber body (1) is dispersed into a plurality of optical fiber bodies (102), a protective sleeve (3) is provided on the outside of the optical fiber body (102), an end of the optical fiber body (102) is provided with a transparent covering end (2), a connector assembly (4) is fixedly provided at the second end of the optical fiber body (1), the connector assembly (4) is fixedly connected to a light-emitting assembly (5), and a linear light beam generated by the light-emitting assembly (5) corresponds to the center of the optical fiber body (1); The optical fiber body (1) comprises, from the inside to the outside, near the second end: an optical fiber body (102), a main body heat dissipation layer (103), and a protective layer (101); the optical fiber body (102) is a single strand of plastic optical fiber with a number of less than or equal to 5, and the optical fiber body (102) is centrally symmetrically distributed.

2. The optical fiber for a surgical lighting system according to claim 1, characterized in that: The main heat dissipation layer (103) is a metal copper layer, and the protective layer (101) is a polytetrafluoroethylene layer.

3. The optical fiber for a surgical lighting system according to claim 1, characterized in that: The joint assembly (4) comprises: A thickened heat dissipation layer (401), wherein the thickened heat dissipation layer (401) is arranged on the outside of the optical fiber body (102), and the thickened heat dissipation layer (401) and the main body heat dissipation layer (103) are integrally arranged; an aluminum alloy jacket (402), the aluminum alloy jacket (402) being arranged on the outside of the optical fiber body (102), and an end face of the aluminum alloy jacket (402) away from the thickened heat dissipation layer (401) being a polished end face, the opposite ends of the thickened heat dissipation layer (401) and the aluminum alloy jacket (402) being interlocked in a stepped manner, and the aluminum alloy jacket (402) being located on the inner side of the thickened heat dissipation layer (401) at the interlocked portion of the stepped manner; A joint outer layer (403), the joint outer layer (403) being arranged outside the thickened heat dissipation layer (401) and the aluminum alloy jacket layer (402), and the joint outer layer (403) and the protective layer (101) being integrally arranged; The end of the joint outer layer (403) facing the light-emitting component (5) is fixedly connected with a buckle (404).

4. The light-splitting optical fiber of a surgical lighting system according to claim 3, characterized in that: The light emitting component comprises: A light emitting seat (501), wherein the light emitting seat (501) is provided with a second chamber (b) at one end facing the optical fiber body (1), and the second chamber (b) corresponds to the connector assembly (4); A light guide seat (5010), the light guide seat (5010) being fixedly arranged inside the light emitting seat (501), the light guide seat (5010) having a circular hole at its center, and a first annular protrusion (50101) being fixedly connected to the inner wall of the light guide seat (5010), and a square groove (50102) being formed at one end of the light guide seat (5010) facing the inner side of the light emitting seat (501); An LED light source board (509), the LED light source board (509) being fixedly disposed inside the square groove (50102), with the light-emitting surface of the LED light source board (509) facing the light guide seat (5010); A coupling lens (5011), the coupling lens (5011) being a biconvex lens, and a second annular protrusion (50111) being fixedly provided on the outer side of the coupling lens (5011); A light guide (5012), one end of the light guide (5012) being threadedly fixedly connected to the inner side of the light guide seat (5010), and the end of the light guide (5012) and the first annular protrusion (50101) clamping the second annular protrusion (50111), and a light guide member being provided at the center of the light guide (5012).

5. The light-splitting optical fiber of the surgical lighting system according to claim 4, characterized in that: The side surface of the light-emitting base (501) is provided with an annular opening corresponding to the undercut piece (404).

6. The light-splitting optical fiber of a surgical lighting system according to claim 4, characterized in that: A first chamber (a) is provided at one end of the light emitting base (501) away from the optical fiber body (1); the wall thickness between the first chamber (a) and the second chamber (b) is less than 1 cm; a heat dissipation plate (502) is fixedly provided inside the first chamber (a); a rear mesh cover (504) is fixedly installed at the port of the first chamber (a); and a heat dissipation portion (5013) is provided on the side wall of the first chamber (a).

7. The light-splitting optical fiber of the surgical lighting system according to claim 6, characterized in that: A water tank (503) and a micro pump (505) are fixedly provided inside the first chamber (a); a semiconductor cooling plate is provided on the side wall of the water tank (503); a water inlet end of the micro pump (505) is connected to the water tank (503); a water outlet end of the micro pump (505) is connected to a second outer tube (508); and a first outer tube (507) is fixedly connected to the side of the water tank (503); The end of the connector assembly (4) and the outer end of the light guide seat (5010) form an annular chamber (c), the second outer tube (508) and the first outer tube (507) are both connected to the light-emitting seat (501), and the second outer tube (508) and the first outer tube (507) are both in communication with the annular chamber (c).

8. The light-splitting optical fiber of a surgical lighting system according to claim 4, characterized in that: Multiple groups of mounting brackets (506) are fixedly mounted on the outer side of the light-emitting base (501), and the mounting brackets (506) are L-shaped.

9. The light-splitting optical fiber of a surgical lighting system according to claim 4, characterized in that: The centers of the light guide (5012), the coupling lens (5011), the connector assembly (4), and the optical fiber body (1) are all on the same axis.

10. The light-splitting optical fiber of a surgical lighting system according to claim 4, characterized in that: The light guide (5012) is a quartz optical fiber light guide.

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