WO1999034740A9 - Smooth and uniform laser ablation apparatus and method - Google Patents
Smooth and uniform laser ablation apparatus and methodInfo
- Publication number
- WO1999034740A9 WO1999034740A9 PCT/US1999/000119 US9900119W WO9934740A9 WO 1999034740 A9 WO1999034740 A9 WO 1999034740A9 US 9900119 W US9900119 W US 9900119W WO 9934740 A9 WO9934740 A9 WO 9934740A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laser beam
- ablating
- ablation
- tissue
- scan lines
- Prior art date
Links
Classifications
-
- 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
-
- 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
- A61F9/00802—Methods or devices for eye surgery using laser for photoablation
-
- 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
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00872—Cornea
-
- 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
- A61F2009/00897—Scanning mechanisms or algorithms
Definitions
- Fig. 3 shows intermittent ablation of a predetermined scanning pattern in accordance with the principles of the present invention.
- the present invention includes linear scanning patterns on an ablation zone of a cornea.
- the temporal order of the ablation points is changed to achieve a smoother and more uniform reshaping of the cornea surface, even when the patient's eye moves during the ablation procedure.
- Fig. 3 illustrates a scanning pattern consisting of twelve (12) scan lines 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, and 44. 7
- a third aspect of the present invention which provides a smooth and uniform ablation is referred to herein as a probability overlapping intermittent ablation. It should be understood that the probability overlapping intermittent ablation technique does not follow a layer concept or a linear or circular scanning method.
- the probability overlapping intermittent ablation 10 technique directs a certain number of laser pulses to a certain laser beam ablation point on the cornea or other tissue proportional to the depth of ablation required at that laser beam ablation point.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99902049A EP1051118A1 (en) | 1998-01-07 | 1999-01-06 | Smooth and uniform laser ablation apparatus and method |
AU22124/99A AU2212499A (en) | 1998-01-07 | 1999-01-06 | Smooth and uniform laser ablation apparatus and method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7065498P | 1998-01-07 | 1998-01-07 | |
US60/070,654 | 1998-01-07 | ||
US09/041,998 | 1998-03-13 | ||
US09/041,998 US6132424A (en) | 1998-03-13 | 1998-03-13 | Smooth and uniform laser ablation apparatus and method |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999034740A1 WO1999034740A1 (en) | 1999-07-15 |
WO1999034740A9 true WO1999034740A9 (en) | 2000-02-17 |
Family
ID=26718772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/000119 WO1999034740A1 (en) | 1998-01-07 | 1999-01-06 | Smooth and uniform laser ablation apparatus and method |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1051118A1 (en) |
AU (1) | AU2212499A (en) |
WO (1) | WO1999034740A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8273115B2 (en) | 2007-04-24 | 2012-09-25 | W. L. Gore & Associates, Inc. | Side branched endoluminal prostheses and methods of delivery thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4665913A (en) * | 1983-11-17 | 1987-05-19 | Lri L.P. | Method for ophthalmological surgery |
US5336217A (en) * | 1986-04-24 | 1994-08-09 | Institut National De La Sante Et De La Recherche Medicale (Insepm) | Process for treatment by irradiating an area of a body, and treatment apparatus usable in dermatology for the treatment of cutaneous angio dysplasias |
DE4232915A1 (en) * | 1992-10-01 | 1994-04-07 | Hohla Kristian | Device for shaping the cornea by removing tissue |
US5520679A (en) | 1992-12-03 | 1996-05-28 | Lasersight, Inc. | Ophthalmic surgery method using non-contact scanning laser |
US5599340A (en) * | 1994-12-09 | 1997-02-04 | Simon; Gabriel | Laser beam ophthalmological surgery method and apparatus |
US5782822A (en) * | 1995-10-27 | 1998-07-21 | Ir Vision, Inc. | Method and apparatus for removing corneal tissue with infrared laser radiation |
-
1999
- 1999-01-06 WO PCT/US1999/000119 patent/WO1999034740A1/en not_active Application Discontinuation
- 1999-01-06 AU AU22124/99A patent/AU2212499A/en not_active Abandoned
- 1999-01-06 EP EP99902049A patent/EP1051118A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AU2212499A (en) | 1999-07-26 |
WO1999034740A1 (en) | 1999-07-15 |
EP1051118A1 (en) | 2000-11-15 |
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