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1. (WO1997017903) LASER BEAM OPHTHALMOLOGICAL SURGERY METHOD AND APPARATUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017903 International Application No.: PCT/US1996/018009
Publication Date: 22.05.1997 International Filing Date: 12.11.1996
Chapter 2 Demand Filed: 22.05.1997
IPC:
A61B 17/00 (2006.01) ,A61B 18/20 (2006.01) ,A61F 9/01 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
18
by applying electromagnetic radiation, e.g. microwaves
20
using laser
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
9
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
007
Methods or devices for eye surgery
008
using laser
01
Treatment of the cornea
Applicants:
SIMON, Gabriel [ES/ES]; ES
HUANG, Cheng-Hao [--/US]; US
Inventors:
SIMON, Gabriel; ES
HUANG, Cheng-Hao; US
Agent:
HOBBY, William, M., III; Hobby & Beusse Suite 375 157 E. New England Avneue Winter Park, FL 32789, US
Priority Data:
08/556,48913.11.1995US
Title (EN) LASER BEAM OPHTHALMOLOGICAL SURGERY METHOD AND APPARATUS
(FR) CHIRURGIE OPHTALMIQUE PAR FAISCEAU LASER, TECHNIQUE ET APPAREIL CORRESPONDANT
Abstract:
(EN) A laser beam ophthalmological surgery method for ablating a cornea (16) of a patient's eye includes the steps of generating a laser beam (12) and directing the generated laser beam onto a scanner (13) and scanning the laser beam (12) in a random scanning pattern with a generated random scanning pattern signal on the surface of the cornea (16) of a patient to ablate the surface of the cornea of a patient's eye. A computer (17) generates the random pattern laser beam control signal which controls the scanner (13) to scan in the random scanning pattern over the cornea (16) and includes selecting a database of non-random scanning points to scan the laser beam onto the cornea (16) of a patient's eye and then randomly selects the non-random scanning points for the random scanning of predetermined scanning points. A laser ophthalmological surgery apparatus (10) is provided which includes a laser (11) for generating a laser beam (12) along with a scanner (13) positioned for receiving the laser beam (12) and producing a predetermined scanning pattern onto the cornea (16) of an eye. A computer (17) is used to generate a random scanning pattern signal and is connected to the scanner (13) for controlling the scanner in a random overlapping scanning beam pattern over a predetermined area.
(FR) L'invention porte sur une technique chirurgicale ophtalmique d'ablation de la cornée (16) de l'oeil d'un patient par faisceau laser. Cette technique consiste à produire un faisceau laser (12), à le diriger sur un scanneur (13) et à le promener selon un mode aléatoire, avec un signal de mode aléatoire de balayage, sur la surface de la cornée (16) aux fins d'ablation. Un ordinateur (17) produit le signal de commande de faisceau laser en mode aléatoire agissant sur le scanneur (13) afin de procéder au balayage en mode aléatoire au-dessus de la cornée (16). Cet ordinateur procède au choix d'une base de données de points de balayage non aléatoires afin de promener le faisceau laser sur la cornée (16) et choisit ensuite de manière aléatoire les points de balayage en mode non aléatoire pour le balayage aléatoire de points de balayage prédéfinis. Un appareil de chirurgie ophtalmique au laser (10), selon l'invention, comporte un laser destiné à émettre un faisceau laser (12) ainsi qu'un scanneur (13) placé pour recevoir le faisceau laser (12) et produire un mode de balayage prédéfini sur la cornée (16) d'un patient. L'ordinateur (17), qui sert à produire un signal de mode aléatoire de balayage, est relié au scanneur (13) pour commander celui-ci en mode aléatoire de faisceau à balayage en superposition au-dessus d'une région prédéfinie.
Designated States: AU, BR, CA, CN, JP, KR, MX
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0955916JP2000500995CN1207026CA2237435KR1019990067553AU1996076755