ES2552799T3 - Sonda láser multipunto de una sola fibra para endoiluminación oftálmica - Google Patents
Sonda láser multipunto de una sola fibra para endoiluminación oftálmica Download PDFInfo
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- ES2552799T3 ES2552799T3 ES10833752.8T ES10833752T ES2552799T3 ES 2552799 T3 ES2552799 T3 ES 2552799T3 ES 10833752 T ES10833752 T ES 10833752T ES 2552799 T3 ES2552799 T3 ES 2552799T3
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- 239000000835 fiber Substances 0.000 title description 2
- 239000000523 sample Substances 0.000 title description 2
- 239000000758 substrate Substances 0.000 abstract description 20
- 230000003287 optical effect Effects 0.000 abstract description 11
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 239000013307 optical fiber Substances 0.000 abstract 3
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003711 photoprotective effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/009—Auxiliary devices making contact with the eyeball and coupling in laser light, e.g. goniolenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/34—Optical coupling means utilising prism or grating
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3616—Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench
- G02B6/3624—Fibre head, e.g. fibre probe termination
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/0006—Coupling light into the fibre
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Laser Surgery Devices (AREA)
- Optical Couplings Of Light Guides (AREA)
- Radiation-Therapy Devices (AREA)
- Prostheses (AREA)
- Eye Examination Apparatus (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Endoiluminador oftálmico (300) que comprende: una fuente de luz (302) que puede ser utilizada para producir luz; un primer conjunto (308) óptico acoplado a la fuente de luz, pudiendo el primer conjunto óptico ser utilizado para recibir y colimar sustancialmente la luz procedente de la fuente de luz; un elemento (310) de acoplamiento óptico, pudiendo el elemento de acoplamiento óptico ser utilizado para recibir la luz blanca sustancialmente colimada procedente del primer conjunto óptico; una fibra óptica (312, 314) acoplada ópticamente al elemento de acoplamiento óptico, pudiendo la fibra óptica ser utilizada para conducir la luz blanca al interior de un ojo a través de una cánula; y caracterizado por que comprende una red óptica acoplada al extremo distal de la fibra óptica, comprendiendo la red óptica: una red de alivio de superficie sobre el lado distal del sustrato de red; y una sobrecapa acoplada ópticamente a la red de alivio de superficie, pudiendo la red óptica ser utilizada para difractar la luz incidente en N órdenes de difracción, presentando los N órdenes de difracción una intensidad uniforme.
Description
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• Los haces difractados descentrados presentan menos potencia de láser de la deseada y por tanto requerirán un tiempo de exposición mayor para crear el patrón de quemado con láser deseado en la retina.
La figura 8 ilustra problemas asociados con presentar un sustrato de red de difracción ultrafino. Para minimizar ese efecto de difuminación, sería necesario que el sustrato de red de difracción se realizara lo más fino posible. Sin embargo, un sustrato fino de este tipo presentaría poca integridad estructural y necesitaría unirse ópticamente a la lente GRIN. Sin embargo, no es deseable unir la red de alivio de superficie a la lente GRIN porque el adhesivo de unión coincidirá esencialmente en índice con el índice de refracción de la lente GRIN y el sustrato de divisor de haz de difracción, y se destruirán las características de eficacia de la red. En cambio, sería necesario que el sustrato de red se sujetara uniendo la pared lateral cilíndrica del sustrato de divisor de haz a la cánula. Es necesario que esta unión de adhesivo selle totalmente la periferia del sustrato de red a la cánula para impedir la entrada de solución salina al espacio de aire tras el sustrato de red. Sin embargo, es muy difícil evitar que el adhesivo se arrastre sobre la superficie de red de difracción, como en la figura 8.
El divisor de haz de difracción modificado ilustrado en las figuras 5A y 5B presenta las siguientes ventajas con respecto a los divisores de haz de difracción de la técnica anterior utilizados en la sonda de láser multipunto de una sola fibra. La red de alivio de superficie puede estar en el lado distal del sustrato de red, impidiendo así la difuminación del haz (y los problemas resultantes producidos por la misma) cuando la red está en el lado proximal de la superficie de red. No se necesita un sustrato de red fino puesto que la red puede estar en el lado distal del sustrato de red. Esto evita problemas tales como entrada de adhesivo o entrada de solución salina en el lado trasero del sustrato de red que pueden producirse cuando se utiliza un sustrato fino. La red presenta difracción fuerte, uniforme en cada uno de N órdenes de difracción independientemente de si la red se sumerge en aire o líquido tal como solución salina o aceite.
La difracción eficaz a partir de una red convencional en las figuras 4A y 4B depende de una gran diferencia de índice de refracción Δn entre el material de sustrato de red (normalmente -1,45 -1,55) y el aire circundante (índice = 1). La difracción eficaz también depende de la profundidad d de la estructura de red. Principalmente, la eficacia de difracción de la red depende del producto Δn*d.
Asimismo, la red modificada en las figuras 5A y 5B requiere una diferencia de índice de refracción Δnmod significativa entre el material de sustrato de red y el material dieléctrico en el que se sumerge la superficie de red. También depende de la profundidad d de la estructura de red. Principalmente, la eficacia de difracción de la red depende del producto Δnmod*dmod. La modulación del índice Δnmod normalmente será mucho más pequeña que Δn puesto que es probable que el índice de refracción del material dieléctrico de inmersión sea muy superior al índice del aire (∼1,0) y mucho más próximo al índice del sustrato de red. Para compensar, las características de profundidad de la red deben aumentar proporcionalmente, según la fórmula:
Por ejemplo, si Δnmod = 1/3 Δn, entonces para lograr una eficacia alta aproximadamente equivalente, dmod debe ser tres veces más profunda que d. En la red modificada, si el índice de refracción del material dieléctrico de inmersión es de aproximadamente 1,5, entonces para lograr Δnmod significativo el sustrato de red debe hacerse de vidrio de índice alto con un índice de refracción muy superior a 1,5.
La capa dieléctrica de inmersión en las figuras 5A y 5B debe presentar una superficie distal especular plana para evitar la distorsión o aberración de los haces difractados cuando emergen de la capa dieléctrica al medio ambiental y se orientan hacia la retina. En la figura 9 se ilustra un procedimiento práctico de creación de esta capa dieléctrica utilizando adhesivo óptico de curado con luz azul o UV.
La implementación convencional de las formas de realización de la presente divulgación sería similar a la configuración en la figura 6, donde la superficie de difracción orientada distalmente es la estructura de red en las figuras 5A y 5B. Esta red se crea normalmente en el sustrato de red mediante escritura directa con láser o escritura con haz de electrones sobre una capa fotoprotectora de un patrón de red que se graba posteriormente en el sustrato de red de vidrio utilizando procedimientos litográficos convencionales.
Un enfoque alternativo sería crear un modelo de red que sea la inversa exacta de la red que va a duplicarse, y entonces crear una copia de red en una capa de adhesivo óptico, tal como se muestra en la figura 10.
Los procedimientos ilustrados en las figuras 9 y 10 pueden combinarse para crear la estructura de red en la figura 11 que combina una red compuesta por adhesivo curado por UV de alto índice de refracción con una sobrecapa dieléctrica compuesta por adhesivo curado por UV de índice de refracción inferior.
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Claims (1)
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imagen1 imagen2
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26395709P | 2009-11-24 | 2009-11-24 | |
| US263957P | 2009-11-24 | ||
| PCT/US2010/055099 WO2011066065A1 (en) | 2009-11-24 | 2010-11-02 | Single-fiber multi-spot laser probe for ophthalmic endoillumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2552799T3 true ES2552799T3 (es) | 2015-12-02 |
Family
ID=44061855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES10833752.8T Active ES2552799T3 (es) | 2009-11-24 | 2010-11-02 | Sonda láser multipunto de una sola fibra para endoiluminación oftálmica |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US8398240B2 (es) |
| EP (1) | EP2503970B1 (es) |
| JP (1) | JP5902623B2 (es) |
| KR (1) | KR101610840B1 (es) |
| CN (1) | CN102665622B (es) |
| AU (1) | AU2010325048B2 (es) |
| BR (1) | BR112012012240A2 (es) |
| CA (1) | CA2779511C (es) |
| ES (1) | ES2552799T3 (es) |
| MX (1) | MX338267B (es) |
| PH (1) | PH12012501015A1 (es) |
| RU (1) | RU2560902C2 (es) |
| WO (1) | WO2011066065A1 (es) |
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| US20100318074A1 (en) * | 2009-06-10 | 2010-12-16 | Bruno Dacquay | Ophthalmic endoillumination using low-power laser light |
| US8292434B2 (en) * | 2009-08-12 | 2012-10-23 | Alcon Research, Ltd. | White light emitting diode (LED) illuminator for ophthalmic endoillumination |
| ES2557883T3 (es) | 2009-12-10 | 2016-01-29 | Alcon Research, Ltd. | Sonda quirúrgica láser multipunto que utiliza elementos ópticos facetados |
| US8348430B2 (en) | 2009-12-17 | 2013-01-08 | Alcon Research, Ltd. | Photonic lattice LEDs for ophthalmic illumination |
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-
2010
- 2010-11-02 ES ES10833752.8T patent/ES2552799T3/es active Active
- 2010-11-02 EP EP10833752.8A patent/EP2503970B1/en active Active
- 2010-11-02 CA CA2779511A patent/CA2779511C/en not_active Expired - Fee Related
- 2010-11-02 US US12/917,911 patent/US8398240B2/en active Active
- 2010-11-02 JP JP2012541090A patent/JP5902623B2/ja active Active
- 2010-11-02 AU AU2010325048A patent/AU2010325048B2/en not_active Ceased
- 2010-11-02 KR KR1020127016162A patent/KR101610840B1/ko not_active Expired - Fee Related
- 2010-11-02 PH PH1/2012/501015A patent/PH12012501015A1/en unknown
- 2010-11-02 RU RU2012126091/14A patent/RU2560902C2/ru not_active IP Right Cessation
- 2010-11-02 BR BR112012012240A patent/BR112012012240A2/pt not_active Application Discontinuation
- 2010-11-02 WO PCT/US2010/055099 patent/WO2011066065A1/en not_active Ceased
- 2010-11-02 MX MX2012005502A patent/MX338267B/es active IP Right Grant
- 2010-11-02 CN CN201080053082.6A patent/CN102665622B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20110122366A1 (en) | 2011-05-26 |
| CN102665622B (zh) | 2015-03-25 |
| WO2011066065A1 (en) | 2011-06-03 |
| MX338267B (es) | 2016-04-11 |
| JP2013512039A (ja) | 2013-04-11 |
| AU2010325048A1 (en) | 2012-05-31 |
| US8398240B2 (en) | 2013-03-19 |
| MX2012005502A (es) | 2012-06-14 |
| CA2779511C (en) | 2018-01-02 |
| BR112012012240A2 (pt) | 2016-04-12 |
| EP2503970A1 (en) | 2012-10-03 |
| JP5902623B2 (ja) | 2016-04-13 |
| RU2560902C2 (ru) | 2015-08-20 |
| RU2012126091A (ru) | 2013-12-27 |
| KR101610840B1 (ko) | 2016-04-08 |
| KR20120095452A (ko) | 2012-08-28 |
| EP2503970B1 (en) | 2015-09-16 |
| CN102665622A (zh) | 2012-09-12 |
| CA2779511A1 (en) | 2011-06-03 |
| EP2503970A4 (en) | 2013-07-31 |
| AU2010325048B2 (en) | 2015-04-02 |
| PH12012501015A1 (en) | 2018-02-07 |
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