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1. (WO1998048746) DUAL MODE OPHTHALMIC LASER ABLATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/048746 International Application No.: PCT/EP1998/002428
Publication Date: 05.11.1998 International Filing Date: 24.04.1998
Chapter 2 Demand Filed: 29.10.1998
IPC:
A61B 17/30 (2006.01) ,A61B 18/00 (2006.01) ,A61B 18/20 (2006.01) ,A61B 19/00 (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
30
Surgical pincettes
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
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
B
DIAGNOSIS; SURGERY; IDENTIFICATION
19
Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
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:
TECHNOLAS GMBH OPHTHALMOLOGISCHE SYSTEME [DE/DE]; Max-Plank-Strasse 6 D-85609 Dornach, DE (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW)
HOHLA, Kristian [DE/DE]; DE (UsOnly)
Inventors:
HOHLA, Kristian; DE
Agent:
VOSSIUS & PARTNER; Siebertstrasse 4 D-81675 Munich, DE
Priority Data:
60/044,90825.04.1997US
Title (EN) DUAL MODE OPHTHALMIC LASER ABLATION
(FR) ABLATION LASER OPHTALMIQUE A DOUBLE MODE
Abstract:
(EN) A dual mode excimer laser eye surgery system is provided. The eye is first treated for primary corneal defects using a large, fixed spot size, and remaining irregularities are removed using a small fixed spot size. The large size allows for faster treatment, and the small size provided for more precision in the treatment of irregular topographies. The system is preferably implemented in a distributed topography environment. For example, a treatment pattern using a large, fixed spot size is provided to doctors based on visual acuity data, such as the degree of dioptric correction needed. The effect of this treatment is then overlaid on a computer against the patient's actual eye topography. The small fixed spot size is used to remove any remaining irregularities yielding a preferred treatment pattern. This combined treatment pattern is then distributed to an excimer laser eye surgery system that performs the large spot size ablation and then the small spot size ablation.
(FR) L'invention concerne un système de chirurgie oculaire par laser excimère à double mode. L'oeil est d'abord traité pour des défauts primaires de la cornée, à l'aide d'une tâche laser de taille fixe et importante, et les irrégularités restantes sont supprimées à l'aide d'une tâche laser de petite taille. Cette taille importante assure un traitement plus rapide, et la petite taille offre une plus grande précision pour traiter les topographies irrégulières. Ce système est, de préférence, mis en oeuvre dans un environnement présentant différentes topographies. Par exemple, un schéma de traitement faisant appel à une taille importante de tâche laser est fourni aux médecins, en fonction des données d'acuité visuelle, telles que le degré de correction dioptrique utilisé. L'effet de ce traitement est ensuite appliqué sur ordinateur et comparé à la topographie de l'oeil réel. La tâche laser de petite taille est utilisée pour retirer toutes les irrégularités restantes, produisant un schéma de traitement préféré. Ce schéma de traitement associé est ensuite distribué à un système de chirurgie ophtalmique par laser excimère qui assure l'ablation avec une tâche laser de taille importante, puis l'ablation par petite tâche laser.
front page image
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
SG68479EP1011563JP2001522279 CN1253487CA2287284AU1998075288