A columnar diffuse laser medical optical fiber

Abstract

A columnar diffuse laser medical optical fiber. It includes a light-emitting end structural module and a laser light source connection end structural module; the light-emitting end structural module includes a micro-plastic laser medical optical fiber, a positioning metal module, a U-shaped capillary quartz glass tube, a clinical resin adhesive layer, a diffuse adhesive layer and a positioning metal ring; the laser light source connection end structural module is connected to the other end of the micro-plastic laser medical optical fiber, and a silicon-aluminum alloy material connector is used. Advantages of the present invention: the positioning metal module and the positioning metal ring are made of non-ferrous metal materials including copper and gold, which is beneficial to the doctor's experience of use and can be found and positioned by medical means such as B-ultrasound. The micro-plastic laser medical optical fiber uses a femtosecond laser to perform micro-machining of the optical fiber end to form a micro-arc or nearly flat end face. This structure is conducive to the output laser being in a regular, uniform, columnar and regular scattering state after packaging.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a columnar diffuse laser medical optical fiber. Background Art

[0002] At present, a new type of columnar diffuse laser medical optical fiber is a medical optical fiber with micro-reshaping at the end. The 632nm laser emitted by the formed columnar light-emitting body is used to irradiate the diseased tissue of the tumor patient, catalyzing the photosensitive drugs previously injected into the patient's diseased tissue by puncture, so as to promote the absorption of the photosensitive drugs by the diseased tissue, thereby achieving the treatment purpose.

[0003] There is also a new type of columnar diffuse laser medical optical fiber, which micro-shapes the end of the medical optical fiber and uses the formed columnar light-emitting body to emit near-infrared laser to irradiate fat tissue. Due to the large scattering surface and uniform light output, it can evenly laser ablate human fat tissue and achieve the therapeutic goal of uniform fat removal.

[0004] As the core laser medical fiber consumables for tumor photodynamic laser irradiation therapy and fat laser ablation therapy, domestic and foreign medical laser equipment manufacturers have regarded it as an essential laser medical fiber consumable. However, for columnar diffuse laser medical fiber, how to improve the uniformity, positionability and stability of intracavitary laser treatment beam output is very critical. Therefore, it is necessary to sublimate the structural concept of columnar diffuse laser medical fiber and refine the process structure in all aspects to improve the doctor's experience. Summary of the invention

[0005] In order to solve the above problems, the object of the present invention is to provide a columnar diffuse laser medical optical fiber.

[0006] In order to achieve the above-mentioned purpose, the columnar diffuse laser medical optical fiber provided by the present invention comprises a light-emitting end structural module and a laser light source connection end structural module; wherein the light-emitting end structural module comprises a micro-plastic laser medical optical fiber, a positioning metal module, a U-shaped capillary quartz glass tube, a clinical resin adhesive layer, a diffuse adhesive layer and a positioning metal ring; the positioning metal module is fixed to the inner end of the U-shaped capillary quartz glass tube by the clinical resin adhesive layer; the micro-plastic laser medical optical fiber has a micro-arc or nearly flat end face, and one end is fixed to the U-shaped capillary quartz glass tube at the outside of the positioning metal module by the diffuse adhesive layer; a positioning metal ring is fixed on the outer surface of the U-shaped capillary quartz glass tube at the position of the optical fiber stripping point, thereby forming a double-end positioning light-emitting end structural module; the laser light source connection end structural module is connected to the other end of the micro-plastic laser medical optical fiber, and a silicon-aluminum alloy material connector is used to connect the medical laser equipment.

[0007] The diameter of the micro-plastic laser medical optical fiber is 550 μm, and the inner diameter of the U-shaped capillary quartz glass tube is 600 μm.

[0008] The positioning metal module is in a spherical, rectangular, cube or irregular shape.

[0009] The micro-arc or nearly flat end face of the micro-plastic laser medical optical fiber is formed by femtosecond laser.

[0010] The diffuse adhesive layer is formed by mixing aluminum oxide and clinical resin in equal proportions and curing them.

[0011] The positioning metal module and the positioning metal ring are made of non-ferrous metal materials including copper and gold.

[0012] By adopting the above technical solution, the present invention has at least the following advantages:

[0013] 1) The positioning metal module and positioning metal ring in the columnar diffuse laser medical optical fiber are made of non-ferrous metal materials including copper and gold, which is beneficial to the doctor's use experience and can be used to find the position through medical means such as B-ultrasound.

[0014] 2) The micro-plastic laser medical optical fiber for this columnar diffuse laser medical optical fiber uses a femtosecond laser to perform micro-machining on the end of the optical fiber to form a micro-arc or near-plane end face. This structure is conducive to the output laser being a regular, uniform, columnar, and regular scattering state after packaging. At the same time, since the diameter of the micro-plastic laser medical optical fiber package size is 550μm, and the inner diameter of the U-shaped capillary quartz glass tube is 600μm, the reserved internal space is very small. The end face of the laser medical optical fiber cut in the packaging process is very easy to be damaged, resulting in irregular laser output. This structural design effectively avoids the generation of fiber end face damage and greatly improves the yield rate.

[0015] 3) The laser light source connection end structural module of the columnar diffuse laser medical optical fiber adopts a silicon-aluminum alloy material connector. During the process of tumor photodynamic laser irradiation treatment and fat laser ablation treatment, the laser output power is relatively large. The traditional SMA905 connector cannot withstand laser output greater than 100W. Hard coupling is adopted between optical fibers, and the transmission loss is particularly large. It is easy to burn at the optical fiber connection, resulting in medical accidents, which brings confusion to doctors and patients. The silicon-aluminum alloy material connector with a special structural design is resistant to high temperature, which improves the reliability of the overall medical laser treatment and medical laser equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the columnar diffuse laser medical optical fiber provided by the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the end portion of the micro-shaping laser medical optical fiber in the columnar diffuse laser medical optical fiber provided by the present invention.

[0018] Figure 3 This is a schematic diagram of the light-emitting end structural module in the columnar diffuse laser medical optical fiber provided by the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] like Figure 1 — Figure 3 As shown, the columnar diffuse laser medical optical fiber provided by the present invention includes a light-emitting end structural module 1 and a laser light source connection end structural module 2; wherein, the light-emitting end structural module 1 includes a micro-plastic laser medical optical fiber 3, a positioning metal module 4, a U-shaped capillary quartz glass tube 5, a clinical resin adhesive layer 6, a diffuse adhesive layer 7 and a positioning metal ring 8; the positioning metal module 4 is fixed to the inner end of the U-shaped capillary quartz glass tube 5 by the clinical resin adhesive layer 6; the micro-plastic laser medical optical fiber 3 has a micro-arc or nearly flat end face, and one end is fixed to the U-shaped capillary quartz glass tube 5 at the outside of the positioning metal module 4 by the diffuse adhesive layer 7; a positioning metal ring 8 is fixed on the outer surface of the U-shaped capillary quartz glass tube 5 at the position of the optical fiber stripping point, thereby forming a double-end positioning light-emitting end structural module 1; the laser light source connection end structural module 2 is connected to the other end of the micro-plastic laser medical optical fiber 3, and a silicon-aluminum alloy material connector is used to connect the medical laser equipment.

[0021] The diameter of the micro-plastic laser medical optical fiber 3 is 550 μm, and the inner diameter of the U-shaped capillary quartz glass tube 5 is 600 μm.

[0022] The positioning metal module 4 is in a spherical, rectangular, cube or irregular shape.

[0023] The slightly arcuate or nearly flat end face of the micro-plastic laser medical optical fiber 3 is formed by femtosecond laser.

[0024] The diffuse adhesive layer 7 is formed by mixing aluminum oxide and clinical resin in equal proportions and curing them.

[0025] The positioning metal module 4 and the positioning metal ring 8 are made of non-ferrous metal materials such as copper and gold.

[0026] The method for manufacturing the columnar diffuse laser medical optical fiber provided by the present invention is described as follows:

[0027] First, a specially designed optical fiber positioning system is used to fix the ordinary laser medical optical fiber, and then the laser medical optical fiber is slowly rotated, and a femtosecond laser is used to perform micro-machining on the end of the laser medical optical fiber, thereby forming a micro-shaped laser medical optical fiber 3 with a micro-arc or nearly flat end face, and the end face of the micro-shaped laser medical optical fiber 3 should be as free of edges and corners as possible, forming Figure 2The form shown. Then, the positioning metal module 4 is dipped in clinical resin glue by using the optical fiber positioning system and then placed in the inner end of the U-shaped capillary quartz glass tube 5. After the clinical resin glue is cured, a clinical resin glue layer 6 is formed between the inner wall of the U-shaped capillary quartz glass tube 5 and the positioning metal module 4; then, one end of the micro-plastic laser medical optical fiber 3 is dipped in the dispersed glue liquid, and the optical fiber positioning system is used to place the end in the U-shaped capillary quartz glass tube 8 at the outside of the positioning metal module 4. After the dispersed glue liquid is cured, a dispersed glue layer 7 is formed between the inner wall of the U-shaped capillary quartz glass tube 5 and the micro-plastic laser medical optical fiber 3. The clinical resin glue layer 6 and the dispersed glue layer 7 will form an isolation zone between the micro-plastic laser medical optical fiber 3 and the positioning metal module 4 to prevent the micro-plastic laser medical optical fiber 3 from generating heat accumulation during the laser output process, which may cause the light-emitting end structure module 1 to burn out. Then, a metal ring 8 is fixed on the outer surface of the U-shaped capillary quartz glass tube 5 at the position of the optical fiber stripping point, thereby forming a double-end positioned light-emitting end structure module 1; finally, the laser light source connection end structure module 2 is connected to the other end of the micro-plastic surgery laser medical optical fiber 3, and the end face of the laser light source connection end structure module 2 is ground with a manual grinding device for connecting to the medical laser equipment.

[0028] The columnar diffuse laser medical optical fiber provided by the present invention should use as few raw materials of different materials as possible during the development process, and adopt a simple, precise and detailed concept design, which is beneficial to improving the reliability and practicality of the columnar diffuse laser medical optical fiber.

Claims

1. A columnar diffuse laser medical optical fiber, characterized in that: The columnar diffuse laser medical optical fiber comprises a light-emitting end structural module (1) and a laser light source connection end structural module (2); wherein the light-emitting end structural module (1) comprises a micro-plastic laser medical optical fiber (3), a positioning metal module (4), a U-shaped capillary quartz glass tube (5), a clinical resin adhesive layer (6), a diffuse adhesive layer (7) and a positioning metal ring (8); the positioning metal module (4) is fixed to the inner end of the U-shaped capillary quartz glass tube (5) by using the clinical resin adhesive layer (6); the micro-plastic laser medical optical fiber (3) The invention has a micro-arc or nearly flat end face, one end of which is fixed to a position outside a positioning metal module (4) in a U-shaped capillary quartz glass tube (5) by means of a diffused adhesive layer (7); a positioning metal ring (8) is fixed to the outer surface of the U-shaped capillary quartz glass tube (5) at a position where the optical fiber is stripped, thereby forming a double-ended positioning light-emitting end structural module (1); a laser light source connection end structural module (2) is connected to the other end of a micro-plastic laser medical optical fiber (3), and a silicon-aluminum alloy material connector is used to connect to medical laser equipment.

2. The columnar diffuse laser medical optical fiber according to claim 1, characterized in that: The diameter of the micro-plastic laser medical optical fiber (3) is 550 μm, and the inner diameter of the U-shaped capillary quartz glass tube (5) is 600 μm.

3. The columnar diffuse laser medical optical fiber according to claim 1, characterized in that: The positioning metal module (4) is in a spherical, rectangular, cube or irregular shape.

4. The columnar diffuse laser medical optical fiber according to claim 1, characterized in that: The micro-arc-shaped or nearly flat end face of the micro-plastic laser medical optical fiber (3) is formed by using a femtosecond laser.

5. The columnar diffuse laser medical optical fiber according to claim 1, characterized in that: The diffuse adhesive layer (7) is formed by mixing aluminum oxide and clinical resin in equal proportions and curing them.

6. The columnar diffuse laser medical optical fiber according to claim 1, characterized in that: The positioning metal module (4) and the positioning metal ring (8) are made of non-ferrous metal materials such as copper and gold.

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