Surgery – Instruments – Light application
Patent
1993-01-05
1994-11-01
Shay, David M.
Surgery
Instruments
Light application
606 16, 606 17, A61N 506
Patent
active
053604253
ABSTRACT:
A fistula is created in the sclera of a glaucoma patient by creating a passageway through the conjunctiva into the subconjunctival space of the patient. The passageway may be realized by an incision but is preferably realized as the inner lumen of a needle or sheath. One option for creating such an incision is to use an optical fiber shaped like a needle to create the incision. The passageway enables an optical fiber to pass into the subconjunctival space. Liquid is then infused into the subconjunctival space to raise the conjunctiva slightly to heighten maneuverability of the optical fiber within the subconjunctival space. The optical fiber is then positioned near a target sight on the sclera of the patient's eye. Laser radiation is transmitted down the optical fiber to create a fistula.
REFERENCES:
patent: 4669467 (1987-06-01), Willett et al.
patent: 4686979 (1987-08-01), Gruen et al.
patent: 4846172 (1989-07-01), Berlin
patent: 4963142 (1990-10-01), Loertscher
"The Holmium Laser, A new laser for the treatment of glaucoma," Sunrise Technologies Brochure, Sunrise Technologies, Inc., 47257 Fremont Boulevard, Fremont, Calif. 94538.
H. D. Hoskins, Jr. et al., Subconjuctival THC:YAG Laser Limbal Sclerostomy AB Externo In The Rabbit.
Mark Latina, M. D. et al., Laser research: improving surgery's chances for success, Sundial, The Newsletter of the Eye Research Institute of Retina Foundation, vol. 14, No. 2, Spring 1988, pp. 9-10.
Candela Laser Corporation
Shay David M.
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