A surgical illumination system's light splitting fiber

Abstract

The application provides a surgical lighting system's light splitting fiber, relates to the medical lighting technical field, and relates to a light emitting assembly, a fiber body, the light emitting assembly is used to generate a straight light beam, the first end of the fiber body is dispersed into a plurality of fiber bodies, the outer side of the fiber body is provided with a protective sleeve, the end of the fiber body is provided with a transparent cladding end, and the second end of the fiber body is fixedly provided with a connector assembly.The application adopts the light emitting assembly and the fiber body to form a medical lighting system, the fiber body is a single plastic fiber, the light emitting assembly generates a straight light beam, the light beam is conducted to the other end along the fiber body, the use demand of medical lighting can be met, the cost of the single plastic fiber is relatively low, the single plastic fiber is not prone to breaking during bending adjustment, and the comprehensive benefits brought by specific application are high.

Description

Technical Field

[0001] This invention relates to the field of medical lighting technology, specifically to a beam splitting optical fiber for a surgical lighting system. Background Technology

[0002] To ensure accurate and efficient operation by medical staff during surgery, surgical lighting equipment is required. Currently, the mainstream products are surgical shadowless lamps, surgical auxiliary lamps, and endoscopic products. Surgical shadowless lamps create a shadowless effect through multiple light sources and are the mainstream and primary lighting equipment. Surgical auxiliary lamps are easy to move and can provide specific lighting for local areas; both of these products are non-contact lighting devices. Endoscopic products generate light energy from the endoscope's cold light source, which is transmitted to the endoscope through a fiber optic beam guide and inserted into the body for illumination. They have significant advantages in illuminating specific areas.

[0003] Currently used endoscopic lighting products have high production costs due to the use of multiple optical fibers for light guiding, and there is a risk of fiber breakage when pulling, resulting in low overall efficiency. Therefore, this invention provides a beam splitting optical fiber for surgical lighting systems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a splitting optical fiber for a surgical lighting system, which solves the problems of high production costs, the risk of fiber breakage during pulling, and low overall efficiency of currently used endoscopic lighting products.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A beam splitter fiber for a surgical illumination system, comprising:

[0007] A light-emitting component, the light-emitting component being used to generate a linear light beam;

[0008] The optical fiber body has multiple optical fibers at its first end, a protective sleeve on the outside of each optical fiber, and a transparent end cap at the end of each optical fiber. The connector assembly is fixedly connected to the light-emitting component, and the straight beam of light generated by the light-emitting component corresponds to the center of the optical fiber body.

[0009] The optical fiber body, near the second end, comprises, from the inside out: an optical fiber body, a main heat dissipation layer, and a protective layer. The optical fiber body is a single-strand plastic optical fiber with a number of less than or equal to 5, and the optical fiber body is centrally symmetrically distributed.

[0010] Preferably, the main heat dissipation layer is a copper layer and the protective layer is a polytetrafluoroethylene layer.

[0011] Preferably, the connector assembly includes:

[0012] A thickened heat dissipation layer is disposed on the outside of the optical fiber body, and the thickened heat dissipation layer is integrally formed with the main heat dissipation layer;

[0013] An aluminum alloy sheath is disposed on the outside of the optical fiber body, and the end face of the aluminum alloy sheath away from the thickened heat dissipation layer is a polished end face. The opposite ends of the thickened heat dissipation layer and the aluminum alloy sheath are interlocked in a stepped manner, and the aluminum alloy sheath is located inside the thickened heat dissipation layer at the stepped interlocking part.

[0014] The outer layer of the connector is disposed outside the thickened heat dissipation layer and the aluminum alloy sleeve layer, and the outer layer of the connector is integrally formed with the protective layer;

[0015] The outer layer of the connector is fixedly connected to the end facing the light-emitting component with an inverted fastener.

[0016] Preferably, the light-emitting component includes:

[0017] The light-emitting base has a second chamber at one end facing the optical fiber body, and the second chamber corresponds to the connector assembly.

[0018] A light guide seat is fixedly installed inside the light-emitting seat. The light guide seat has a circular hole at its center and a first annular protrusion is fixedly connected to the inner wall of the light guide seat. A square groove is opened at one end of the light guide seat facing the inner side of the light-emitting seat.

[0019] The LED light source board is fixedly installed inside the square groove, with the light-emitting surface of the LED light source board facing the light guide seat;

[0020] 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;

[0021] A light guide beam, one end of which is threadedly fixed to the inner side of the light guide base, and the end of the light guide beam is clamped between the first annular protrusion and the second annular protrusion. A light guide element is provided at the center of the light guide beam.

[0022] Preferably, the side of the light-emitting base has an annular opening corresponding to the inverted fastener.

[0023] Preferably, the light-emitting base has a first chamber at the end 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 installed 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.

[0024] Preferably, a water tank and a micro pump are fixedly installed inside the first chamber. A semiconductor cooling chip is installed on the side wall of the water tank. The water inlet of the micro pump is connected to the water tank. The water outlet of the micro pump is connected to a second external pipe. A first external pipe is fixedly connected to the side of the water tank.

[0025] The end of the connector assembly forms an annular cavity with the outer end of the light guide base. The second outer tube and the first outer tube are both connected to the light-emitting base, and the second outer tube and the first outer tube are both connected to the annular cavity.

[0026] Preferably, multiple sets of mounting brackets are fixedly installed on the outer side of the light-emitting base, and the mounting brackets are L-shaped.

[0027] Preferably, the centers of the beam guide, coupling lens, connector assembly, and optical fiber body are all on the same axis.

[0028] Preferably, the beam guide is a quartz fiber beam guide.

[0029] This invention provides a beam splitter fiber for a surgical illumination system. It has the following beneficial effects:

[0030] This invention employs 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 straight beam of light, which is transmitted along the optical fiber body to the other end, thus meeting the needs of medical lighting. Furthermore, the single-strand plastic optical fiber has a low cost and is not prone to breakage during bending and adjustment, resulting in high overall benefits in practical applications.

[0031] This invention, through the design of a main heat dissipation layer with good thermal conductivity, avoids heat concentration within the optical fiber, preventing damage and extending the lifespan of the splitting fiber. Furthermore, it incorporates a connector assembly comprising a thickened heat dissipation layer, an aluminum alloy sheath, and an outer connector layer. The end face of the aluminum alloy sheath furthest from the thickened heat dissipation layer is polished, reflecting the emitted light and maximizing light transmission along the optical fiber body. The thickened heat dissipation layer and the aluminum alloy sheath interlock in a stepped manner at their opposite ends, with the aluminum alloy sheath located inside the thickened heat dissipation layer at the interlocking point. This interlocking mechanism, relying on the cooperation of the thickened heat dissipation layer and the aluminum alloy sheath, enables rapid heat transfer, especially at the connection point between the light-emitting component and the optical fiber body, where there is significant light emission and heat generation. This rapid heat dissipation further enhances the lifespan of the optical fiber body.

[0032] This invention, through the design of a multi-layer heat dissipation structure consisting of a protective layer, an optical fiber body, and a main heat dissipation layer, enables it to exhibit excellent performance during use.

[0033] This invention, by designing multiple individually presented optical fibers, achieves more uniform light transmission and a more uniform illumination beam. Attached Figure Description

[0034] Figure 1 This is a three-dimensional view of a beam-splitting optical fiber for a surgical illumination system proposed in this invention;

[0035] Figure 2 This is a front view of the optical fiber of a surgical illumination system proposed in this invention;

[0036] Figure 3 for Figure 2 Schematic diagram of the cross section at point AA;

[0037] Figure 4 This is a vertical cross-sectional view of the optical fiber of a surgical lighting system proposed in this invention.

[0038] Figure 5 This is a three-dimensional schematic diagram of the output optical fiber of the beam splitter fiber of the surgical illumination system proposed in this invention.

[0039] Figure 6 This is a cross-sectional view of the optical fiber of a surgical illumination system proposed in this invention.

[0040] Figure 7 This is an exploded view of the light-emitting component of the beam-splitting optical fiber in a surgical lighting system proposed in this invention;

[0041] Figure 8 This is a three-dimensional schematic diagram of the light guide base of the optical fiber of a surgical lighting system proposed in this invention;

[0042] Figure 9 This is a three-dimensional schematic diagram of the tail end of the light-emitting component of the beam-splitting optical fiber in a surgical lighting system proposed in this invention.

[0043] Figure 10 This is a three-dimensional schematic diagram of the light-emitting base of the optical fiber in a surgical lighting system proposed in this invention.

[0044] The components include: 1. Optical fiber body; 101. Protective layer; 102. Optical fiber body; 103. Main body heat dissipation layer; 2. Transparent covered end; 3. Protective sleeve; 4. Connector assembly; 401. Thickened heat dissipation layer; 402. Aluminum alloy sleeve; 403. Connector outer layer; 404. Inverted fastener; 5. Light-emitting component; 501. Light-emitting base; 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 base; 50101. First annular protrusion; 50102. Square groove; 5011. Coupling lens; 50111. Second annular protrusion; 5012. Beam guide; 5013. Heat dissipation part; a. First chamber; b. Second chamber; c. Annular chamber. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1

[0047] like Figures 1-10 As shown, this embodiment of the invention provides a beam splitting 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 beam of light, and the optical fiber body 1 is used to conduct light. Together, they 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 usage requirements, so as to better meet the medical lighting requirements.

[0048] Specifically, the first end of the optical fiber body 1 is divided into multiple optical fiber bodies 102, which can be used for multiple lighting needs. A protective sleeve 3 is provided on the outside of the optical fiber body 102, and a transparent cladding end 2 is provided at the end of the optical fiber body 102 to protect the end of the optical fiber body 102. A connector assembly 4 is fixedly provided at the second end of the optical fiber body 1. The connector assembly 4 plays the role of receiving and connecting. The connector assembly 4 is fixedly connected to the light-emitting component 5, and the straight beam of light generated by the light-emitting component 5 corresponds to the center of the optical fiber body 1, thereby adapting to the transmission of light.

[0049] A red light source with a center wavelength of 630nm and an optical power of approximately 3W is generally used, with a voltage of 3.5V and a current of 12A. After assembly, the light intensities at the ends of the fiber optic body 1 are 52mW and 59mW, respectively, with a relative error of approximately 7%. The fiber optic body 1, near the second end, includes, from the inside out, the following components: fiber body 102, main heat dissipation layer 103, and protective layer 101. The fiber body 102 consists of 5 or fewer single-strand plastic optical fibers, and the fiber bodies 102 are centrally symmetrically distributed. For example, one fiber body 102 can be selected, located at the center of the main heat dissipation layer 103; or multiple fiber bodies 102 can be arranged in a ring array.

[0050] Near the second end

[0051] In the optical fiber body 1, the heat dissipation layer 103 is a copper layer. Copper 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, which is used by the user to grip and prevents the heat of the copper layer from affecting the use.

[0052] 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. It is preferred to use 2 to 4 fibers to ensure that the optical fiber body 102 has good flexibility and is easy to use.

[0053] In one embodiment, the connector assembly 4 includes: a thickened heat dissipation layer 401, an aluminum alloy sleeve layer 402, a connector outer layer 403, and a buckle 404.

[0054] The thickened heat dissipation layer 401 is disposed on the outer side of the optical fiber body 102, and is integrally formed with the main heat dissipation layer 103. Both the thickened heat dissipation layer 401 and the main heat dissipation layer 103 are made of copper and serve to dissipate heat. The aluminum alloy sleeve 402 is disposed on the outer side 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 polished, so that the end face of the aluminum alloy sleeve 402 away from the thickened heat dissipation layer 401 has the function of reflecting light. The opposite ends of the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402 are interlocked in a stepped manner. The aluminum alloy sleeve 402 is located inside the thickened heat dissipation layer 401. Specifically, both the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402 are stepped ring structures, which can maximize the contact area of ​​the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402. The connector outer layer 403 is located outside the thickened heat dissipation layer 401 and the aluminum alloy sleeve 402, and the connector outer layer 403 is integrally formed with the protective layer 101. The end of the connector outer layer 403 facing the light-emitting component 5 is fixedly connected with an inverted fastener 404. The connector outer layer 403, the protective layer 101 and the inverted fastener 404 can be manufactured by an integral injection molding process.

[0055] In the above scheme, the connector assembly 4 and the light-emitting assembly 5 are detachable, and the optical fiber body 1 can be replaced when it is damaged.

[0056] In one embodiment, in order to ensure the stability of the connection between the connector assembly 4 and the light-emitting assembly 5, heat-resistant adhesive can be used to assist the connection on the basis of the above-mentioned buckle 404 connection, and a certain degree of sealing is ensured at the connection.

[0057] In one embodiment, the light-emitting component 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 beam 5012.

[0058] A second chamber b is formed at one end of the light-emitting base 501 facing the optical fiber body 1. The second chamber b corresponds to the connector assembly 4. The light guide base 5010, LED light source board 509, coupling lens 5011, and beam guide 5012 are all located inside the second chamber b. The light-emitting base 501 can be milled from aluminum. The light guide base 5010 is fixedly installed inside the light-emitting base 501. The light guide base 5010 and the second chamber b are installed and fixed by interference fit. The center of the light guide base 5010 has a circular hole, and a first annular protrusion 50101 is fixedly connected to the inner wall of the light guide base 5010. The light guide base 5010 faces the inner side of the light-emitting base 501. A square groove 50102 is provided at one end of the side. The LED light source board 509 is fixedly installed inside the square groove 50102, and the light-emitting surface of the LED light source board 509 faces the light guide seat 5010. The coupling lens 5011 is a biconvex lens, generally a biconvex lens with a diameter of 6mm and a focal length of 8mm. A second annular protrusion 50111 is fixedly provided on the outer side of the coupling lens 5011. One end of the beam guide 5012 is threadedly fixedly connected to the inner side of the light guide seat 5010, and the end of the beam guide 5012 is clamped with the first annular protrusion 50101 and the second annular protrusion 50111. A light guide element is provided at the center of the beam guide 5012.

[0059] The principle of the light-emitting component 5 is as follows: the LED light source board 509 generates light, and the light is focused by the coupling lens 5011 with a double convex lens structure, so that it forms light parallel to the central circular hole of the light guide seat 5010. The remaining divergent light can be refracted inside the light guide seat 5010, and the light is then conducted through the light guide beam 5012, so that the light is conducted along the axis, which facilitates the connection of the light to the optical fiber body 1.

[0060] In one embodiment, the light-emitting base 501 has an annular opening on its side corresponding to the inverted fastener 404. The inner cross-sectional shape of the annular opening is L-shaped. The inverted fastener 404 is deformed and inserted into the innermost part of the annular opening. The end of the inverted fastener 404 is engaged with the step on the inner side of the annular opening to achieve fixation.

[0061] In one embodiment, in order to ensure better heat dissipation in the second chamber b of the light-emitting base 501, a first chamber a is provided 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 between the first chamber a and the second chamber b can conduct heat. A heat dissipation plate 502 is fixedly provided inside the first chamber a. The heat dissipation plate 502 dissipates heat from the wall between the first chamber a and the second chamber b. A rear mesh cover 504 is fixedly installed at the port of the first chamber a. The rear mesh cover 504 is mesh-like and facilitates airflow. A heat dissipation part 5013 is provided on the side wall of the first chamber a. The heat dissipation part 5013 has a heat dissipation hole structure.

[0062] In one embodiment, a water tank 503 and a micro pump 505 are fixedly installed inside the first chamber a. A semiconductor cooling chip is installed on the side wall of the water tank 503, with the cooling surface of the semiconductor cooling chip facing the side wall of the water tank 503 and the heating surface facing outward. The water inlet of the micro pump 505 is connected to the water tank 503, and the water outlet of the micro pump 505 is connected to a second outer pipe 508. A first outer pipe 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 annular chamber c can be filled with cooling water to dissipate heat from the light guide seat 5010. The second outer pipe 508 and the first outer pipe 507 are both connected to the light-emitting seat 501, and both the second outer pipe 508 and the first outer pipe 507 are connected to the annular chamber c. The water tank 503, the micro pump 505, the second outer pipe 508, the annular chamber c, and the first outer pipe 507 constitute a circulating water circuit.

[0063] During the above-mentioned water cooling cycle, the micro pump 505 pumps the cold water inside the water tank 503 into the annular chamber c through the second outer pipe 508. The cold water inside the annular chamber c cools the light guide seat 5010. Then the water flows back into the water tank 503 through the first outer pipe 507. During this process, the semiconductor cooling chip works to cool the water inside the water tank 503.

[0064] In one embodiment, multiple sets of mounting brackets 506 are fixedly installed on the outer side of the light-emitting base 501. The mounting brackets 506 are L-shaped to facilitate fixing the light-emitting base 501 to the outer wall, wall surface or bracket of other devices, thereby making it convenient to use.

[0065] In one embodiment, the centers of the beam guide 5012, coupling lens 5011, connector assembly 4, and optical fiber body 1 are all on the same axis, thereby ensuring that the pipeline can be well transmitted in the beam guide 5012, coupling lens 5011, connector assembly 4, and optical fiber body 1, and reducing loss.

[0066] In one embodiment, the light guide beam 5012 is a quartz fiber light guide beam with a light guide diameter of 5mm, and quartz fiber light guide beams are readily available.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A beam-splitting optical fiber for a surgical illumination system, characterized in that, include: The light-emitting component is used to generate a straight beam of light. The optical fiber body has multiple optical fibers at its first end, with a protective sleeve on the outside of each fiber and a transparent end cap at each end. A connector assembly is fixedly attached to the second end of the optical fiber body, and the connector assembly is fixedly connected to the light-emitting component. The straight beam of light generated by the light-emitting component corresponds to the center of the optical fiber body. The optical fiber body, near the second end, includes, from the inside to the outside, the following components: optical fiber body, heat dissipation layer, and protective layer. The optical fiber body is a single-strand plastic optical fiber with a number of less than or equal to 5, and the optical fiber bodies are centrally symmetrically distributed. The connector assembly includes: a thickened heat dissipation layer, located on the outside of the optical fiber body, integrally formed with the main heat dissipation layer; an aluminum alloy sleeve, located on the outside of the optical fiber body, with a polished end face away from the thickened heat dissipation layer, the opposite ends of the thickened heat dissipation layer and the aluminum alloy sleeve interlocking in a stepped manner, and the aluminum alloy sleeve located inside the thickened heat dissipation layer at the stepped interlocking part; an outer connector layer, located outside the thickened heat dissipation layer and the aluminum alloy sleeve, integrally formed with the protective layer; and a snap fastener fixedly connected to the end of the outer connector layer facing the light-emitting component. The light-emitting component includes: a light-emitting base with a second chamber at one end facing the optical fiber body, the second chamber corresponding to the connector assembly; a light guide base fixedly disposed inside the light-emitting base, the light guide base having a circular hole at its center, a first annular protrusion fixedly connected to the inner wall of the light guide base, and a square groove at one end of the light guide base facing the inner side of the light-emitting base; an LED light source board fixedly disposed inside the square groove, the light-emitting surface of the LED light source board facing the light guide base; a coupling lens, which is a biconvex lens, with a second annular protrusion fixedly disposed on the outer side of the coupling lens; a beam guide, one end of which is threadedly fixedly connected to the inner side of the light guide base, the end of which clamps the second annular protrusion with the first annular protrusion, and a light guide element at the center of the beam guide; an annular opening corresponding to the inverted fastener is opened on the side of the light-emitting base, the inner cross-sectional shape of the annular opening is L-shaped, the inverted fastener is deformed and inserted into the innermost side of the annular opening, and the end of the inverted fastener is engaged with the step on the inner side of the annular opening to achieve fixation; the centers of the beam guide, coupling lens, connector assembly, and optical fiber body are all on the same axis; A first chamber is formed at the end of the light-emitting base away from the main body of the optical fiber. The wall thickness between the first chamber and the second chamber is less than 1 cm. A heat dissipation plate is fixedly installed inside the first chamber. A rear mesh cover is fixedly installed at the port of the first chamber. A heat dissipation part is provided on the side wall of the first chamber. A water tank and a micro pump are fixedly installed inside the first chamber. A semiconductor cooling chip is provided on the side wall of the water tank. The water inlet of the micro pump is connected to the water tank. The water outlet of the micro pump is connected to a second external tube. A first external tube is fixedly connected to the side of the water tank. The end of the connector assembly and the outer end of the light guide base form an annular chamber. Both the second external tube and the first external tube are connected to the light-emitting base and are in communication with the annular chamber.

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

3. The optical fiber for the surgical illumination system according to claim 1, characterized in that: Multiple sets of mounting brackets are fixedly installed on the outside of the light-emitting base, and the mounting brackets are L-shaped.

4. The optical fiber for the surgical illumination system according to claim 1, characterized in that: The beam guide is a quartz fiber beam guide.

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