Corrosion-resistant laser optical fiber

Abstract

The utility model discloses a corrosion-resistant laser optical fiber, which relates to the technical field of optical fibers and comprises a main body, an outer tube is arranged on the periphery of the main body, the outer tube is composed of paint and a protective tube, the paint is a parylene coating, a hoop is arranged on the periphery of one end of the outer tube, threads are arranged on the other side of the hoop through the outer tube, and the protective tube is arranged on the outer tube. And eight through holes are formed in the side face of the end, located on the threads, of the outer pipe, the through holes are evenly distributed around the circle center of the outer pipe, sealing plugs are slidably arranged in the through holes, and the number and the position of the sealing plugs are consistent with those of the through holes. Compared with an existing common laser optical fiber, the corrosion-resistant laser optical fiber has the advantages that the outer tube needs to be sleeved outside the main body before use, the hoop is fastened and the outer tube is fixed on the outer side of the main body when the corrosion-resistant laser optical fiber is in place, and then the sealing plug is inserted into the through hole, so that the main body can be isolated from the outside, and the corrosion of the main body can be avoided; and after the protection device of the external outer pipe is aged, the protection device can be directly replaced, so that the use cost can be further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to a corrosion-resistant laser optical fiber. Background Technique

[0002] Laser is a kind of energy with directional emission, and the energy density is extremely high. The output wavelength and energy are closely controllable. At present, it has been widely used in the medical field. It mainly uses its high-power and high-energy heating effect to coagulate, carbonize or vaporize human tissues, so that the body tissues are ablated or vaporized, so as to achieve the purpose of treating diseases. Photodynamic is a new technology for disease diagnosis and treatment in modern medical clinics. Its principle is that the photosensitizer reacts with the cells of the target tissue. After laser irradiation, the target tissue cells necrosis. The transmission of laser requires a carrier, and the medical laser optical fiber plays the role of conducting specific light to the target position.

[0003] For example, the application number is 202220036339.7. The utility model discloses a corrosion-resistant medical laser optical fiber, which specifically relates to the technical field of optical fibers. The existing optical fibers are easily affected by the external environment and aged, affecting the service life of the optical fibers. It includes a laser treatment machine, and a fiber optic main body corresponding to it is arranged on one side of the laser treatment machine. The outer surface of the fiber optic main body is wrapped with a protective layer, and a coating layer is sprayed on the outer surface of the protective layer. Through the set flame-retardant layer, it has high heat resistance and high strength, good barrier property, low smoke emission of fireproof filler, high temperature resistance and good heat stability. The shielding layer can play an anti-interference role, shielding external signals and avoiding the influence of external signals on the signal transmission inside the optical fiber. Through the set waterproof layer, it plays a waterproof role and avoids water seeping into the optical fiber interior. Through the set corrosion-resistant coating, it can play an anti-corrosion role and avoid being corroded during long-term use. Through the set wear-resistant coating, it can play a wear-resistant role. However, the protection device of this laser optical fiber is fixed to the fiber optic main body. When the external protection device ages, it needs to be replaced together with the optical fiber, which is not convenient for the cost during use, and it is not convenient to change the focusing position of the laser when providing protection for the optical fiber.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a corrosion-resistant laser optical fiber is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a corrosion-resistant laser optical fiber to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A corrosion-resistant laser optical fiber, including a main body, an outer tube is arranged around the main body, and the outer tube is composed of a coating and a protective tube. The coating is set as a parylene coating, and a clamp is arranged around one end of the outer tube. The other side of the clamp is provided with a thread through the outer tube, and a through hole is arranged on the side of the outer tube at one end of the thread.

[0007] Preferably, eight through holes are evenly distributed around the center of the outer tube, and a sealing plug is slidably arranged inside the through hole. The number and position of the sealing plugs are the same as those of the through holes.

[0008] Preferably, a cushion block is fixedly arranged at the other end of the sealing plug. The cushion block is also fixedly connected to the main body, and the cushion block is set as a ring. Tooth grooves are arranged around the cushion block through the outer tube.

[0009] Preferably, a lens is slidably arranged at the temporal part of the tooth groove. The lens is also located at the upper end of the cushion block, and a cover is arranged on the other side of the lens. The cover is also engaged with the thread.

[0010] Preferably, a spring is fixedly arranged inside the cover. Eight springs are evenly distributed around the center of the cover, and a pressing block is fixedly arranged at the other end of the spring. The pressing block is also set as a circular ring, and the pressing block is also slidably connected to the cover.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. Through the settings of the main body, outer tube, coating, protective tube, clamp, thread, through hole, sealing plug and cushion block in the present utility model, before use, the outer tube needs to be sleeved outside the main body. When in place, first tighten the clamp to fix the outer tube on the outside of the main body, and then insert the sealing plug into the through hole, so that the main body can be isolated from the outside world, thereby avoiding the corrosion of the main body. And when the external protection devices such as the outer tube are aged, they can be directly replaced, which can further reduce the use cost;

[0013] 2. Through the settings of the tooth groove, lens, cover, spring and pressing block in the present utility model, after the external protection device is installed, different lenses can be selected according to needs, which can change the focusing position of the laser, thereby improving the adaptability of the device. And when installing the lens, the lens needs to be aligned with the tooth groove, and then the cover is screwed onto one end of the outer tube, and the cooperation of the spring and the pressing block can fix the lens and improve the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0015] Figure 2Schematic diagram of the overall sectional structure of the present utility model;

[0016] Figure 3 Schematic diagram of the sectional structure of the lid of the present utility model.

[0017] In the figure: 1, main body; 2, outer tube; 201, coating; 202, protection tube; 3, clamp; 4, thread; 5, through hole; 6, sealing plug; 7, cushion block; 8, tooth groove; 9, lens; 10, lid; 11, spring; 12, pressing block. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figure 1 - Figure 2 shown, a corrosion-resistant laser optical fiber includes a main body 1. An outer tube 2 is provided around the main body 1, and the outer tube 2 is composed of a coating 201 and a protection tube 202. The coating 201 is set as a parylene coating. A clamp 3 is provided around one end of the outer tube 2. The other side of the clamp 3 is provided with a thread 4 through the outer tube 2. A through hole 5 is provided on the side of the outer tube 2 at one end of the thread 4. Before use, the outer tube 2 needs to be sleeved outside the main body 1. When in place, first tighten the clamp 3 to fix the outer tube 2 outside the main body 1. Then insert the sealing plug 6 into the through hole 5, so that the main body 1 can be isolated from the outside world, thereby avoiding the corrosion of the main body 1. And when the protection device of the outer tube 2 outside ages, it can be directly replaced, which can further reduce the use cost;

[0020] Further, the coating 201 is set as a parylene coating poly(p-difluorostyrene) because it has excellent chemical inertness and corrosion resistance, can provide effective and reliable protection, and at the same time it also has good biocompatibility.

[0021] Further, the through hole 5 can accelerate the discharge of the air inside the outer tube 2 during the installation of the outer tube 2, thereby improving the convenience during installation.

[0022] As Figure 2 - Figure 3As shown, there are eight through holes 5 evenly distributed around the center of the outer tube 2. A sealing plug 6 is slidably arranged inside the through hole 5. The number and position of the sealing plugs 6 are the same as those of the through holes 5. A spacer block 7 is fixedly arranged at the other end of the sealing plug 6. The spacer block 7 is also fixedly connected to the main body 1. The spacer block 7 is arranged as a ring. Tooth grooves 8 are formed in the outer tube 2 around the periphery of the spacer block 7. A lens 9 is slidably arranged at the temporal part of the tooth groove 8. The lens 9 is located at the upper end of the spacer block 7. A cover 10 is arranged on the other side of the lens 9. The cover 10 is also engaged with the thread 4. A spring 11 is fixedly arranged inside the cover 10. There are eight springs 11 evenly distributed around the center of the cover 10. The other end of the spring 11 is fixedly arranged with a pressing block 12. The pressing block 12 is also arranged as a ring. The pressing block 12 is also slidably connected to the cover 10. After the external protection device is installed, different lenses 9 can be selected according to needs. In this way, the focusing position of the laser can be changed, thereby improving the adaptability of the device. When installing the lens 9, the lens 9 needs to be aligned with the tooth groove 8, and then the cover 10 is screwed onto one end of the outer tube 2. Through the cooperation of the spring 11 and the pressing block 12, the lens 9 can be fixed and the sealing performance of the device can be improved.

[0023] Furthermore, the pressing block 12 can not only press the lens 9, but also further improve the sealing performance at the front end of the lens 9, preventing external liquid from entering during use and damaging the main body 1.

[0024] Working principle: When using this corrosion-resistant laser optical fiber, first, before use, the outer tube 2 needs to be sleeved outside the main body 1. When in place, first tighten the clamp 3 to fix the outer tube 2 outside the main body 1. Then, insert the sealing plug 6 into the through hole 5, so that the main body 1 can be isolated from the outside world, thereby preventing the main body 1 from being corroded. And when the protection device of the external outer tube 2 ages, it can be directly replaced, which can further reduce the use cost. Finally, after the external protection device is installed, different lenses 9 can be selected according to needs. In this way, the focusing position of the laser can be changed, thereby improving the adaptability of the device. When installing the lens 9, the lens 9 needs to be aligned with the tooth groove 8, and then the cover 10 is screwed onto one end of the outer tube 2. Through the cooperation of the spring 11 and the pressing block 12, the lens 9 can be fixed and the sealing performance of the device can be improved. This is the working principle of this corrosion-resistant laser optical fiber.

Claims

1. A corrosion-resistant laser optical fiber, comprising a main body (1), characterized in that: An outer tube (2) is arranged around the main body (1), and the outer tube (2) is composed of a coating (201) and a protective tube (202), the coating (201) is configured as a parylene coating, and a clamp (3) is arranged around one end of the outer tube (2), a thread (4) is provided on the other side of the clamp (3) through the outer tube (2), and a through hole (5) is provided on the side surface of one end of the outer tube (2) located at the thread (4).

2. The corrosion-resistant laser optical fiber according to claim 1, characterized in that: There are eight through holes (5) evenly distributed around the center of the outer tube (2), and sealing plugs (6) are slidably arranged inside the through holes (5), and the number and position of the sealing plugs (6) are consistent with those of the through holes (5).

3. The corrosion-resistant laser optical fiber according to claim 2, characterized in that: A cushion block (7) is fixedly provided at the other end of the sealing plug (6). The cushion block (7) is also fixedly connected to the main body (1). The cushion block (7) is provided in the form of a circular ring. Tooth grooves (8) are provided around the cushion block (7) through the outer tube (2).

4. The corrosion-resistant laser optical fiber according to claim 3, characterized in that: A lens (9) is slidably arranged at the temporal portion of the tooth groove (8), and the lens (9) is simultaneously located at the upper end of the cushion block (7), and a cover (10) is arranged on the other side of the lens (9), and the cover (10) is simultaneously engaged with the thread (4).

5. The corrosion-resistant laser optical fiber according to claim 4, characterized in that: A spring (11) is fixedly arranged inside the cover (10), and eight springs (11) are evenly distributed around the center of the cover (10). A pressure block (12) is fixedly arranged at the other end of the spring (11), and the pressure block (12) is also arranged in a circular ring shape. The pressure block (12) is also slidably connected to the cover (10).

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