CN215449663U

CN215449663U - Medical annular optical fiber

Info

Publication number: CN215449663U
Application number: CN202022809366.7U
Authority: CN
Inventors: 汪会梅; 徐剑; 林间
Original assignee: Nanjing Shenglue Technology Co ltd
Current assignee: Nanjing Shenglue Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2022-01-07
Anticipated expiration: 2030-11-27

Abstract

The application relates to an annular optical fiber for medical treatment relates to the field of optical fiber technology, including optic fibre silk, connector and protective layer, the optic fibre silk includes cylinder portion and circular cone bight, cylinder portion and connector fixed connection, and the protective layer suit has a silver-loaded hydroxyapatite membrane on the cylinder portion. The application has good antibacterial drug effect, is suitable for sterilization treatment in human body, reduces the possibility that the optical fiber threads breed bacteria, and improves the effect of the problem that the optical fiber threads are susceptible to infecting the bacteria.

Description

Medical annular optical fiber

Technical Field

The application relates to the field of optical fiber technology, in particular to a medical annular optical fiber.

Background

The optical fiber is a simple word of an optical fiber, and is a light conduction tool achieved by utilizing the principle of total reflection of light in a fiber made of glass or plastic, and the optical fiber actually refers to a fiber core made of a transparent material and a cladding made of a material with a refractive index slightly lower than that of the fiber core, and an optical signal emitted into the fiber core is reflected by a cladding interface, so that the optical signal propagates and advances in the fiber core. At present, optical fibers are widely used in the medical field, and in particular, in the endoscope treatment technology, a laser beam transmitted by one optical fiber enters a body cavity through an endoscope to treat pathological tissues.

The patent of Chinese utility model with publication number CN211750040U discloses a sterile medical laser fiber, which comprises a fiber optic wire, a connector and a quartz glass sleeve; the optical fiber filament is solidified in the connector through the adhesive, the front end face of the connector is a plane and is flush with the front end face of the optical fiber filament, the tail end of the optical fiber filament is of a conical angle structure, and the quartz glass sleeve is sleeved at the tail end of the optical fiber filament and is in adhesive connection with the optical fiber filament.

In view of the above-mentioned related technologies, the inventor believes that the optical fiber product used in the medical field needs strict standards for health control, and the optical fiber in the related technologies has poor antibacterial effect and has the defect of easy occurrence of bacterial infection during medical use.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the optical fiber is easy to be infected by bacteria in medical application, the application provides a medical annular optical fiber.

The application provides a medical annular optical fiber adopts following technical scheme:

the utility model provides an annular optic fibre is used in medical treatment, includes optic fibre silk, connector and protective layer, the optic fibre silk includes cylinder portion and circular cone bight, cylinder portion and connector fixed connection, the protective layer bonds on cylinder portion, the coating has year silver hydroxyapatite film on the cylinder portion.

By adopting the technical scheme, when the optical fiber is used for laser treatment of the annular columnar part of a human body, when water vapor in the body reaches the silver-loaded hydroxyapatite film, the silver ions with strong antibacterial property can be released by the silver-loaded hydroxyapatite film when the silver ions meet water, so that bacteria can be killed; the hydroxyapatite film is used as a carrier of silver ions to improve the biocompatibility of the silver ions, has good antibacterial efficacy, is suitable for human body sterilization treatment, reduces the possibility of bacteria breeding of the fiber yarns, and improves the problem that the fiber yarns are susceptible to bacteria.

Optionally, the cylindrical portion is coated with an acrylic resin layer, and the silver-loaded hydroxyapatite film is coated on the acrylic resin layer.

By adopting the technical scheme, the acrylic resin layer has certain reflection capacity on the laser in the optical fiber, so that the possibility that the laser emits light from the cylindrical part of the optical fiber is reduced, and the energy loss is reduced.

Optionally, the acrylic resin layer is filled with a plurality of glass beads.

By adopting the technical scheme, the glass beads have high refractive index, most of leaked laser can be reflected back to the inside of the optical fiber in a concentrated manner, and energy loss in the laser transmission process is reduced.

Optionally, the protective layer is coated with a para-hydroxybenzoic acid chitosan ester antibacterial film.

By adopting the technical scheme, the p-hydroxybenzoic acid chitosan ester has broad-spectrum antibacterial activity, presents strong antibacterial activity within the range of pH 4-10, has excellent antibacterial activity to bacteria in an acidic environment, and is suitable for treatment of the interior of a human body.

Optionally, the conical corner is coated with an antibacterial BOPP film.

Through adopting above-mentioned technical scheme, the BOPP film has high-efficient broad-spectrum bacterinertness, and light transmissivity is good, and the ejection of light of being convenient for has the characteristics of matter is light simultaneously, and surface hardness is big, and the difficult scotch of protection circular cone bight has then guaranteed the homogeneity and the intensity of the light that jets out from circular cone bight, and chemical stability is good.

Optionally, a quartz glass sleeve is welded to an end of the protective layer away from the connector, and the quartz glass sleeve covers the conical corner.

By adopting the technical scheme, the quartz glass sleeve is fixed with the protective layer in a welding mode and cannot fall off easily, the welding sealing performance is good, the possibility of human body fluid permeating into the quartz glass sleeve is reduced, and further the influence of the body fluid on the process of ejecting the quartz glass sleeve by laser is reduced.

Optionally, the para-hydroxybenzoic acid chitosan ester antibacterial film is coated with a first antibacterial PET film, and the quartz glass sleeve is coated with a second antibacterial PET film at the position of the conical corner.

By adopting the technical scheme, the antibacterial PET film has good pressure resistance while playing an antibacterial effect, so that the possibility of scratches on the surfaces of the antibacterial film of the para-hydroxybenzoic acid chitosan ester and the quartz glass sleeve can be reduced, and the using effect of the optical fiber is ensured.

Optionally, a quaternized ammonium halide antibacterial silica gel film is bonded on the first antibacterial PET film.

Through adopting above-mentioned technical scheme, the antibiotic silica gel membrane of quaternary ammonium halide has certain elastic restoring force for optic fibre can not too buckle, and the antibiotic silica gel membrane of quaternary ammonium halide simultaneously, intensity is high, can not break easily, and has the effect of disinfecting.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the silver-loaded hydroxyapatite film is coated on the cylindrical part of the optical fiber, silver ions with strong antibacterial property can be released when meeting water, bacteria can be killed, the silver-loaded hydroxyapatite film is suitable for sterilization treatment in a human body, the possibility of breeding bacteria in the optical fiber is reduced, and the problem that the optical fiber is susceptible to infection of bacteria is solved;

2. the acrylic resin layer and the filled glass beads are matched, so that laser leaked out of the optical fiber can be reflected back to the inside of the optical fiber, and energy loss in the laser transmission process is reduced;

3. the quartz glass sleeve is welded on the protective layer, the sealing performance is good, and the possibility of water vapor generation in the quartz glass sleeve is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for showing a connection relationship between an optical fiber filament and a quartz glass sleeve in an embodiment of the present application.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of a cylindrical portion for embodying an optical fiber filament in the embodiment of the present application.

Description of reference numerals: 1. a connector; 2. an optical fiber filament; 21. a cylindrical portion; 22. a conical corner; 3. an acrylic resin layer; 30. glass beads; 31. a silver-loaded hydroxyapatite film; 32. a protective layer; 33. a para-hydroxybenzoic acid chitosan ester antibacterial film; 34. a first antimicrobial PET film; 35. quaternizing an ammonium halide antibacterial silica gel film; 36. an antibacterial BOPP film; 37. a quartz glass sleeve; 38. a second antimicrobial PET film.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a medical annular optical fiber.

Referring to fig. 1 and 2, the medical annular optical fiber comprises an optical fiber filament 2 for transmitting laser and a connector 1 fixedly connected with one end of the optical fiber filament 2, wherein the optical fiber filament 2 comprises a cylindrical part 21 and a conical corner part 22, the cylindrical part 21 and the conical corner part 22 are integrally formed, the angle of a cone angle is 40-60 degrees, an emergent light spot is annular, the divergence angle is 120-240 degrees, and the application range is wide.

Referring to fig. 2 and 3, an acrylic resin layer 3, a silver-loaded hydroxyapatite film 31, a protective layer 32, a chitosan paraben antibacterial film 33, a first antibacterial PET film 34 and a quaternized ammonium halide antibacterial silica gel film 35 are sequentially arranged on the surface of the cylindrical portion 21 from inside to outside; the surface of the conical corner part 22 is provided with an antibacterial BOPP film 36, a quartz glass sleeve 37 and a second antibacterial PET film 38 from inside to outside in sequence.

Referring to fig. 3 and 4, the acrylic resin layer 3 is formed by spraying acrylic resin or acrylic resin evenly mixed with the glass beads 30 on the outer peripheral wall of the cylindrical portion 21, when laser leaked out of the optical fiber 2 irradiates the acrylic resin layer 3, most of the laser can be reflected back to the inside of the optical fiber, energy loss in the laser transmission process is reduced, damage of light energy to the protective layer 32 is reduced, and the service life of the protective layer 32 is prolonged.

Referring to fig. 3 and 4, the silver-loaded hydroxyapatite film 31 is coated on the outer peripheral wall of the acrylic resin layer 3, the silver-loaded hydroxyapatite film 31 is formed by spraying a silver-loaded hydroxyapatite antibacterial agent, when the optical fiber filament 2 is used for human body treatment, body fluid can enter the protective layer 32 of the optical fiber filament 2, and the silver-loaded hydroxyapatite film 31 can release silver ions with strong antibacterial performance when meeting water, so that the sterilizing effect is good; the hydroxyapatite film has good biocompatibility, is used as a carrier of silver ions, is suitable for the laser treatment process of a human body, and has good antibacterial efficacy.

Referring to fig. 3 and 4, the protective layer 32 is formed by adhering a cylindrical sleeve made of teflon resin to the silver-loaded hydroxyapatite film 31 for sealing and protecting the inside of the optical fiber; the antibacterial film 33 of the chitosan paraben is uniformly coated on the protective layer 32, and meanwhile, the chitosan paraben has broad-spectrum antibacterial activity, and the chitosan paraben has strong antibacterial activity in a larger pH value (pH 4-10) range and is wider than the application range of the reactant chitosan (below pH 6); due to the existence of free amino groups on the chitosan structural unit, the p-hydroxybenzoic acid chitosan ester has excellent bacteriostatic activity on bacteria in an acidic environment, and is suitable for internal treatment of human bodies.

Referring to fig. 3 and 4, the first antibacterial PET film 34 is wrapped on the outer peripheral wall of the antibacterial film 33 of chitosan paraben, and the PET film has high pressure resistance and scratch resistance, so that damage to the protective layer 32 can be reduced, and the quality of the optical fiber 2 can be guaranteed.

Referring to fig. 3 and 4, the quaternized ammonium halide antibacterial silica gel film 35 is adhered to the surface layer of the first antibacterial PET film 34, and the quaternized ammonium halide antibacterial silica gel film 35 is prepared according to "preparation, characterization and application of quaternized ammonium halide antibacterial cotton cloth and quaternized ammonium halide antibacterial silica gel", wherein the quaternized ammonium halide antibacterial silica gel film 35 has a certain elastic restoring force, increases the bending resistance of the optical fiber 2, ensures the transmission efficiency of laser inside the optical fiber 2 in the optical fiber 2, and the quaternized ammonium halide antibacterial silica gel film 35 has high toughness and high strength and cannot be easily broken; meanwhile, the antibacterial agent has excellent antibacterial performance and is suitable for medical use.

Referring to fig. 3, the coating of antibiotic BOPP film 36 is at the circular cone bight 22 of optic fibre silk 2, antibiotic BOPP film utilizes the molecular assembly technique preparation to form, and BOPP film has high-efficient broad-spectrum antibiotic nature, and light transmittance is good, the ejection of the laser of being convenient for, and it is light to have simultaneously, the big characteristics of surface hardness, and protection circular cone bight 22 is difficult for scotching, and then has guaranteed the homogeneity and the intensity of the laser of ejecting from cylinder portion 21, and chemical stability is good, and is acid-resistant, alkali-resistant, be applicable to medical field.

Referring to fig. 3, one end of the quartz glass sleeve 37 away from the connector 1 is a tapered closed end, the other end is open, the inner wall of the opening of the quartz glass sleeve 37 is welded with the outer peripheral wall of the protective layer 32, one end of the antibacterial film 33 of chitosan paraben close to the tapered corner 22 is coated on the quartz glass sleeve 37, and the tapered quartz glass sleeve 37 is used for puncture; the quartz glass sleeve 37 is firmly fixed with the protective layer 32 and cannot easily fall off, and meanwhile, the possibility that moisture in a human body enters the conical corner part 22 is reduced by adopting a fusion-welding fixing mode, so that the possibility that moisture permeates into the quartz glass sleeve 37 is reduced, and the influence of the moisture on the emission process of the annular laser from the quartz glass sleeve 37 is reduced.

Referring to fig. 3, the second antibacterial PET film 38 is wrapped at the tapered closed end of the quartz glass sleeve 37, and the second antibacterial PET film 38 and the first antibacterial PET film 34 are integrally formed, so that the second antibacterial PET film 38 can reduce damage to the quartz glass sleeve 37, thereby ensuring that the laser is uniformly emitted from the quartz glass sleeve 37.

The implementation principle of the medical annular optical fiber in the embodiment of the application is as follows: when assembling and producing, firstly, the acrylic resin layer 3, the silver-loaded hydroxyapatite film 31 and the protective layer 32 are sequentially coated and installed on the cylindrical part 21 of the optical fiber filament 2, and then the antibacterial BOPP film 36 is coated on the conical corner part 22; then, the quartz glass sleeve 37 is sleeved and welded on the outer peripheral wall of the cylindrical part 21, the p-hydroxybenzoic acid chitosan ester antibacterial film 33 is coated on the outer peripheral wall of the protective layer 32, then the integrally formed second antibacterial PET film and the first antibacterial PET film 34 are sequentially coated on the quartz glass sleeve 37 and the p-hydroxybenzoic acid chitosan ester antibacterial film 33, and finally the quaternized ammonium halide antibacterial silica gel film 35 is bonded on the first antibacterial PET film 34, so that the medical annular optical fiber with excellent antibacterial performance can be obtained, the antibacterial efficacy is good, the optical fiber is suitable for internal treatment of a human body, the possibility of bacteria breeding of the optical fiber 2 is reduced, and the problem that the optical fiber 2 is susceptible to bacteria is solved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A medical ring-shaped optical fiber comprising an optical fiber filament (2), a connector (1), and a protective layer (32), characterized in that: the optical fiber filament (2) comprises a cylindrical part (21) and a conical corner part (22), the cylindrical part (21) is fixedly connected with the connector (1), the protective layer (32) is bonded on the cylindrical part (21), and the cylindrical part (21) is coated with a silver-loaded hydroxyapatite film (31).

2. The medical ring-shaped optical fiber according to claim 1, characterized in that: the cylindrical part (21) is coated with an acrylic resin layer (3), and the silver-loaded hydroxyapatite film (31) is coated on the acrylic resin layer (3).

3. The medical ring-shaped optical fiber according to claim 1, characterized in that: the protective layer (32) is coated with a para-hydroxybenzoic acid chitosan ester antibacterial film (33).

4. The medical ring-shaped optical fiber according to claim 1, characterized in that: the conical corner (22) is coated with an antibacterial BOPP film (36).

5. The medical ring-shaped optical fiber according to claim 3, characterized in that: one end part of the protective layer (32) far away from the connector (1) is welded with a quartz glass sleeve (37), and the quartz glass sleeve (37) covers the conical corner part (22).

6. The medical ring-shaped optical fiber according to claim 5, characterized in that: the para-hydroxybenzoic acid chitosan ester antibacterial film (33) is coated with a first antibacterial PET film (34), and the quartz glass sleeve (37) is coated with a second antibacterial PET film (38) at the position of the conical corner (22).

7. The medical ring-shaped optical fiber according to claim 6, characterized in that: and a quaternized ammonium halide antibacterial silica gel film (35) is bonded on the first antibacterial PET film (34).