CN213633906U - Dispersion optical fiber with hard dispersion head - Google Patents
Dispersion optical fiber with hard dispersion head Download PDFInfo
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- CN213633906U CN213633906U CN202022808399.XU CN202022808399U CN213633906U CN 213633906 U CN213633906 U CN 213633906U CN 202022808399 U CN202022808399 U CN 202022808399U CN 213633906 U CN213633906 U CN 213633906U
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Abstract
The utility model relates to a disperse optic fibre with hard head that scatters relates to the field of disperse optic fibre technique, and the disperse optic fibre with hard head that scatters includes optic fibre silk and optic fibre cap, the laser output end of optic fibre silk is the inclined plane, the laser output end of optic fibre silk is inserted and is located in the optic fibre cap, the laser output end cover of optic fibre silk is equipped with the development ring, be equipped with the development layer on the development ring, be equipped with the adhesive layer between development ring and the optic fibre silk. The developing ring of this application makes things convenient for the doctor to fix a position the laser output end of the fiber optic cable through techniques such as B ultrasonic, and the adhesive layer can reduce the developing ring and remove at will, improves the accurate nature of location, and consequently this application is convenient for fix a position optic cable.
Description
Technical Field
The application relates to the field of dispersion optical fiber technology, in particular to a dispersion optical fiber with a hard dispersion head.
Background
In the medical field, the thermal effect of laser energy is utilized to coagulate, carbonize and vaporize tissues, so that the tissues of a human body can be ablated or cut, and the treatment aim is achieved. The quartz optical fiber is a commonly used medical laser optical fiber at present, and uses quartz as a core diameter, an optical medium with a small refractive index is wrapped on an outer layer, light enters an interface of an optical dense medium and an optical sparse medium from an optical dense medium, and when an incident angle is larger than a critical angle, total reflection of the light is generated. The laser light entering the optical fiber repeatedly generates total reflection at the interface, thereby transmitting the laser light. In order to protect the fragile optical fiber, a hard dispersion head is wrapped at the laser output end of the optical fiber.
The related technology discloses a side light-emitting laser fiber structure, which comprises a medical quartz fiber, wherein one end of the medical quartz fiber is provided with a fiber connector, the other end of the medical quartz fiber is provided with a laser output tail end, the fiber tail end of the laser output tail end is ground and polished into an inclined plane, so that transmitted laser is emitted from the side direction deviating from the axis of the fiber, and the fiber tail end is also connected with a fiber cap for sealing the inclined plane in the air. When the numerical aperture of the optical fiber is 0.22, the included angle between the normal of the inclined plane and the axis of the optical fiber is 49-70 degrees, and the outer surface of the cylinder body of the light-emitting area on the side of the optical fiber cap can be set to be a plane.
In view of the above-mentioned related art, the inventor believes that the side-emitting laser fiber structure is inconvenient to position when extending into the human body.
SUMMERY OF THE UTILITY MODEL
To facilitate positioning the optical fiber, the present application provides a dispersive optical fiber with a rigid dispersion head.
The application provides a dispersion optic fibre with hard head that scatters adopts following technical scheme:
the utility model provides a disperse optic fibre with hard head of scattering, includes optic fibre silk and optic fibre cap, the laser output of optic fibre silk is the inclined plane, the laser output of optic fibre silk is inserted and is located in the optic fibre cap, the laser output pot head of optic fibre silk is equipped with the development ring, be equipped with the development layer on the development ring, be equipped with the adhesive layer between development ring and the optic fibre silk.
By adopting the technical scheme, the optical fiber cap improves the compression resistance and the bending resistance of the optical fiber, has a protection effect on the optical fiber, and the developing ring and the developing layer facilitate a doctor to position the laser output end of the optical fiber through B-ultrasonic technology and other technologies so as to determine whether the laser output end of the optical fiber reaches a specified position; the present application thus facilitates positioning of the optical fiber.
Optionally, the developing ring is a quartz tube, and the developing layer is coated on the developing ring.
Through adopting above-mentioned technical scheme, the quartz material light transmissivity is good, and temperature resistance is good moreover, consequently can reduce the luminous influence of developing ring to the optic fibre silk, reduces the optic fibre silk simultaneously and generates heat the influence on the development layer.
Optionally, one side of the end of the optical fiber cap is an inclined plane, the other side of the end of the optical fiber cap is a spherical surface, and the inclined plane of the optical fiber filament is opposite to the inclined plane of the optical fiber cap.
By adopting the technical scheme, the laser beam is emitted from the inclined plane of the optical fiber cap, the light spot of the emitted light beam is more regular, the optical power density of the light beam is improved, and the laser vaporization cutting is favorably implemented.
Optionally, the inclined plane of the optical fiber filaments is provided with a dispersion glue layer, and the dispersion glue layer is abutted to the inner wall of the end part of the optical fiber cap.
By adopting the technical scheme, the dispersion glue layer can enhance the scattering of laser, and the laser firstly passes through the dispersion glue layer and is scattered, and then is emitted from the inclined plane of the optical fiber cap.
Optionally, a heat insulation layer is arranged between the dispersion glue layer and the optical fiber filaments.
By adopting the technical scheme, the heat insulation layer can reduce the influence of the heat of the optical fiber wires on the dispersion glue layer and slow down the aging of the dispersion glue layer.
Optionally, the optical fiber filament is a pure silica fiber core, and the cross-sectional shape of the optical fiber filament is rectangular.
By adopting the technical scheme, the rectangular pure quartz fiber core can generate flat-top homogenized laser spots while meeting the requirement of high-power laser transmission, and the requirement of high-quality laser cutting is met.
Optionally, the outer wall of the optical fiber filament is wrapped with a fluorine-containing acrylic resin layer, and the developing ring is sleeved on the fluorine-containing acrylic resin layer.
By adopting the technical scheme, the fluorine-containing acrylic resin material has the characteristic of low refractive index, and the fluorine-containing acrylic resin material is used as the optical cortex, so that the optical fiber has a wider transmission spectrum range, and can transmit high-power light energy.
Optionally, the optical fiber cap includes a fluorine-doped quartz cladding and a TPE buffer layer, the TPE buffer layer is sleeved on the fluorine-doped quartz cladding, and the fluorine-doped quartz cladding is fixedly connected with the TPE buffer layer.
Through adopting above-mentioned technical scheme, TPE buffer layer and fluorine-doped quartz cladding can provide tensile tension, have improved the resistance to compression and the anti ability of buckling of optic fibre silk for optic fibre silk can be used under more environment.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the developing ring and the developing layer, a doctor can conveniently position the laser output end of the optical fiber through B ultrasonic technology and the like, and the accuracy of a medical operation is improved;
2. one side of the end part of the optical fiber cap is an inclined plane, a dispersion glue layer is arranged in the optical fiber cap, the dispersion glue layer can enhance the scattering of laser, the laser and the inclined plane of the optical fiber cap are emitted, the light spots of the emitted light beam are more regular, the optical power density of the light beam is improved, and the laser vaporization cutting is favorably implemented;
3. the outer wall of the optical fiber filament is wrapped with the fluorine-containing acrylic resin layer, so that the optical fiber can transmit high-power light energy;
4. the utility model provides an optic fibre cap has improved the resistance to compression and the anti ability of buckling of optic fibre silk including doping fluorine quartz cladding and TPE buffer layer for optic fibre silk can be used under more environment.
Drawings
Fig. 1 is a front view of a dispersive optical fiber with a hard dispersion head according to an embodiment of the present application.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a view from direction B in fig. 2.
Description of reference numerals: 1. an optical fiber filament; 11. a developing ring; 111. a developing layer; 112. an adhesive layer; 113. a cavity; 12. a dispersion glue layer; 13. a thermal insulation layer; 2. an optical fiber cap; 21. a fluorine-doped quartz cladding; 22. TPE buffer layers; 3. a fluorine-containing acrylic resin layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a dispersion optical fiber with a hard dispersion head.
Referring to fig. 1 and 2, the dispersion optical fiber with a hard dispersion head includes an optical fiber filament 1, an optical fiber cap 2, and a development ring 11; the optical fiber 1 is a low-hydroxyl rectangular pure quartz fiber core, the laser output end of the optical fiber 1 is an inclined plane, the included angle between the inclined plane of the optical fiber 1 and the length direction of the optical fiber 1 is 45 degrees, and the laser output end of the optical fiber 1 is inserted into the optical fiber cap 2; the developing ring 11 is sleeved on the outer wall of the optical fiber filament 1, an adhesive layer 112 is bonded on the inner wall of the developing ring 11, the adhesive layer 112 is bonded with the outer peripheral wall of the optical fiber filament 1, the developing ring 11 is located at the laser output end of the optical fiber filament 1, and a developing layer 111 is coated on the developing ring 11.
Coating ultraviolet curing glue on the outer peripheral wall of the optical fiber filament 1, sleeving the developing ring 11 on the outer peripheral wall of the optical fiber filament 1, irradiating the ultraviolet curing glue by using a UV lamp, solidifying the ultraviolet curing glue into a glue layer 112, bonding the developing ring 11 and the optical fiber filament 1 by using the glue layer 112, then inserting the laser output end of the optical fiber filament 1 into the optical fiber cap 2, and bonding the optical fiber cap 2 and the optical fiber filament 1 together.
Referring to fig. 2 and 3, the developing ring 11 is a ring made of quartz, an inner circumferential wall of the developing ring 11 is rectangular, an outer circumferential wall of the developing ring 11 is circular, a cavity 113 is formed inside the circumferential wall of the developing ring 11 along a circumferential direction, and the cavity 113 surrounds the developing ring 11 for a circle; the developer is coated on the peripheral wall of the cavity 113, and the developer forms a developing layer 111.
Referring to fig. 2 and 3, the outer wall of the optical fiber filament 1 is wrapped with a fluorine-containing acrylic resin layer 3, the fluorine-containing acrylic resin layer 3 is a film formed by fluorine-containing acrylic resin, the fluorine-containing acrylic resin layer 3 is sleeved on the outer circumferential wall of the optical fiber filament 1, and the fluorine-containing acrylic resin layer 3 is bonded with the optical fiber filament 1.
Referring to fig. 2 and 3, one side of the end wall of the optical fiber cap 2 is a slanted plane, the other side is a spherical surface, an included angle between the slanted plane of the optical fiber cap 2 and the length direction of the optical fiber cap 2 is 45 °, the slanted plane of the optical fiber 1 is opposite to the slanted plane of the optical fiber cap 2, and the slanted plane of the optical fiber 1 is parallel to the slanted plane of the optical fiber cap 2.
Referring to fig. 2 and 3, the laser output end of the optical fiber 1 extends out of the fluorine-containing acrylic resin layer 3, the fluorine-containing acrylic resin layer 3 is coated with a heat insulation layer 13, the heat insulation layer 13 is located at the laser output end of the optical fiber 1, the heat insulation layer 13 covers the inclined plane of the optical fiber 1, and the heat insulation layer 13 is an epoxy acrylate coating.
Referring to fig. 2 and 3, the optical fiber cap 2 includes a fluorine-doped quartz cladding 21 and a TPE buffer layer 22, the fluorine-doped quartz cladding 21 is wrapped outside the fluorine-containing acrylic resin layer 3 and the developing ring 11, the TPE buffer layer 22 is wrapped on an outer wall of the fluorine-doped quartz cladding 21, the TPE buffer layer 22 is bonded to the fluorine-doped quartz cladding 21, and the TPE buffer layer 22 is a tube made of a TPE material.
Referring to fig. 2 and 3, the inner wall of the fluorine-doped quartz cladding 21 is coated with a dispersion glue layer 12, the laser output end of the optical fiber 1 and the heat insulation layer 13 are both inserted in the dispersion glue layer 12, the heat insulation layer 13 is bonded with the dispersion glue layer 12, and the dispersion glue layer 12 is formed by solidifying dispersion glue liquid prepared by mixing alumina and acrylic resin in equal proportion.
Firstly, coating epoxy acrylate on the outer wall of the fluorine-containing acrylic resin layer 3, simultaneously coating the epoxy acrylate on the inclined plane of the optical fiber filament 1, and forming a heat insulation layer 13 after the epoxy acrylate is solidified; and coating dispersion glue solution on the inner wall of the fluorine-doped quartz cladding 21, forming a dispersion glue layer 12 after the dispersion glue solution is solidified, inserting the laser output end of the optical fiber filament 1 into the fluorine-doped quartz cladding 21, synchronously inserting the heat-insulating layer 13 and the fluorine-containing acrylic resin layer 3 into the fluorine-doped quartz cladding 21, abutting the dispersion glue layer 12 against the inner wall of the fluorine-doped quartz cladding 21, then inserting the fluorine-doped quartz cladding 21 into the TPE buffer layer 22, and bonding the fluorine-doped quartz cladding 21 with the TPE buffer layer 22.
The implementation principle of the dispersion optical fiber with the hard dispersion head in the embodiment of the application is as follows: firstly, coating ultraviolet curing glue on the outer wall of the laser output end of the optical fiber filament 1, penetrating the optical fiber filament 1 into the developing ring 11, then irradiating the ultraviolet curing glue by using a UV lamp, solidifying the ultraviolet curing glue into a glue layer 112, and adhering the developing ring 11 on the optical fiber filament 1.
Then the optical fiber filament 1 is penetrated into the fluorine-containing acrylic resin layer 3, then epoxy acrylate is coated on the outer wall of the fluorine-containing acrylic resin layer 3 and the inclined plane of the optical fiber filament 1, and the epoxy acrylate is solidified into the heat insulation layer 13.
And then coating the dispersion glue solution on the inner wall of the fluorine-doped quartz cladding 21, and forming the dispersion glue layer 12 after the dispersion glue solution is solidified.
Then the laser output end of the optical fiber filament 1 and the fluorine-containing acrylic resin layer 3 are simultaneously inserted into the fluorine-doped quartz cladding 21, meanwhile, the heat insulation layer 13 is inserted into the fluorine-doped quartz cladding 21, and the inclined plane of the fluorine-doped quartz cladding 21 is opposite to the inclined plane of the optical fiber filament 1; and sleeving the TPE buffer layer 22 on the fluorine-doped quartz cladding 21, adhering the TPE buffer layer 22 to the fluorine-doped quartz cladding 21, and adhering the inclined plane of the TPE buffer layer 22 to the inclined plane of the fluorine-doped quartz cladding 21 to form the optical fiber cap 2.
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 (8)
1. The utility model provides a dispersion optic fibre with hard head of scattering, includes optic fibre silk (1) and optic fibre cap (2), the laser output of optic fibre silk (1) is inclined plane, the laser output of optic fibre silk (1) is inserted and is located in optic fibre cap (2), its characterized in that: the optical fiber developing device is characterized in that a developing ring (11) is sleeved at the laser output end of the optical fiber (1), a developing layer (111) is arranged on the developing ring (11), and an adhesive layer (112) is arranged between the developing ring (11) and the optical fiber (1).
2. The dispersion optical fiber with the hard dispersion head according to claim 1, wherein: the developing ring (11) is a quartz tube, and the developing layer (111) is coated on the developing ring (11).
3. The dispersion optical fiber with the hard dispersion head according to claim 1, wherein: one side of the end part of the optical fiber cap (2) is an inclined plane, the other side of the end part of the optical fiber cap (2) is a spherical surface, and the inclined plane of the optical fiber filament (1) is opposite to the inclined plane of the optical fiber cap (2).
4. The dispersion optical fiber with the hard dispersion head according to claim 3, wherein: the inclined plane of optical fiber silk (1) is equipped with dispersion glue film (12), dispersion glue film (12) and the inner wall butt of optic fibre cap (2) tip.
5. The dispersion optical fiber with the hard dispersion head as claimed in claim 4, wherein: and a heat insulation layer (13) is arranged between the dispersion glue layer (12) and the optical fiber wires (1).
6. The dispersion optical fiber with the hard dispersion head according to claim 1, wherein: the optical fiber filament (1) is a pure quartz fiber core, and the cross section of the optical fiber filament (1) is rectangular.
7. The dispersion optical fiber with the hard dispersion head according to claim 6, wherein: the outer wall of the optical fiber filament (1) is wrapped with a fluorine-containing acrylic resin layer (3), and the developing ring (11) is sleeved on the fluorine-containing acrylic resin layer (3).
8. The dispersion optical fiber with the hard dispersion head according to claim 1, wherein: the optical fiber cap (2) comprises a fluorine-doped quartz cladding (21) and a TPE buffer layer (22), wherein the TPE buffer layer (22) is sleeved on the fluorine-doped quartz cladding (21), and the fluorine-doped quartz cladding (21) is fixedly connected with the TPE buffer layer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808399.XU CN213633906U (en) | 2020-11-27 | 2020-11-27 | Dispersion optical fiber with hard dispersion head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808399.XU CN213633906U (en) | 2020-11-27 | 2020-11-27 | Dispersion optical fiber with hard dispersion head |
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| Publication Number | Publication Date |
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| CN213633906U true CN213633906U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022808399.XU Active CN213633906U (en) | 2020-11-27 | 2020-11-27 | Dispersion optical fiber with hard dispersion head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117547349A (en) * | 2024-01-10 | 2024-02-13 | 中国科学技术大学 | Laser interstitial thermotherapy device |
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2020
- 2020-11-27 CN CN202022808399.XU patent/CN213633906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117547349A (en) * | 2024-01-10 | 2024-02-13 | 中国科学技术大学 | Laser interstitial thermotherapy device |
| CN117547349B (en) * | 2024-01-10 | 2024-04-26 | 中国科学技术大学 | Laser interstitial thermotherapy device |
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