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1. WO2007039208 - APPARATUS, SYSTEM AND METHOD OF CONTROLLING AND MONITORING THE ENERGY OF A LASER

Publication Number WO/2007/039208
Publication Date 12.04.2007
International Application No. PCT/EP2006/009395
International Filing Date 27.09.2006
Chapter 2 Demand Filed 18.07.2007
IPC
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
A61F 9/01 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
9Methods 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
007Methods or devices for eye surgery
008using laser
01Treatment of the cornea
CPC
A61B 5/0059
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
A61B 5/0095
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0093Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
0095by applying light and detecting acoustic waves, i.e. photoacoustic measurements
A61F 2009/00855
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
9Methods 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
007Methods or devices for eye surgery
008using laser
00855Calibration of the laser system
A61F 2009/00872
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
9Methods 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
007Methods or devices for eye surgery
008using laser
00861adapted for treatment at a particular location
00872Cornea
A61F 9/008
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
9Methods 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
007Methods or devices for eye surgery
008using laser
A61F 9/00814
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
9Methods 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
007Methods or devices for eye surgery
008using laser
00802for photoablation
00814Laser features or special beam parameters therefor
Applicants
  • BAUSCH & LOMB INCORPORATED [US]/[US] (AllExceptUS)
  • LANG, Stefan [DE]/[DE] (UsOnly)
  • TÖNNIES, Roland [DE]/[DE] (UsOnly)
Inventors
  • LANG, Stefan
  • TÖNNIES, Roland
Agents
  • VOSSIUS & PARTNER
Priority Data
10 2005 046 129.827.09.2005DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS, SYSTEM AND METHOD OF CONTROLLING AND MONITORING THE ENERGY OF A LASER
(FR) APPAREIL, SYSTEME ET PROCEDE DE COMMANDE ET DE CONTROLE DE L'ENERGIE PRODUITE PAR UN LASER
Abstract
(EN)
The present invention is based on the concept to detect the noise which is generated when a laser pulse of the excimer laser hits on a reference material. In particular where the laser pulse of an excimer laser hits on a reference material the radiation ablates a corresponding volume of the reference material by photodecomposition. The ablated volume of material which is proportional to the pulse energy applied to the reference material can be determined based on measuring the acoustic shock wave resulting from the ablation. The reference material is preferably a plate made of a material erodable by an excimer laser, more preferably a plate made of plastics and most preferably PMMA.
(FR)
L'invention porte sur un procédé de détection du bruit produit lorsqu'une impulsion produite par un laser à excimère touche un matériau de référence. En particulier, lorsque l'impulsion produite par un laser à excimère touche un matériau de référence, le rayonnement permet l'ablation d'un volume correspondant du matériau de référence par photodécomposition. Le volume de matériau enlevé qui est proportionnel à l'énergie de l'impulsion appliquée sur le matériau de référence peut être déterminé à partir de la mesure de l'onde de choc acoustique provoquée par l'ablation. Le matériau de référence est de préférence une plaque faite d'un matériau érodable par un laser à excimère, de préférence une plaque en plastique et idéalement en PMMA.
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