CA2186379A1 - Epithelium removal - Google Patents

Epithelium removal

Info

Publication number
CA2186379A1
CA2186379A1 CA002186379A CA2186379A CA2186379A1 CA 2186379 A1 CA2186379 A1 CA 2186379A1 CA 002186379 A CA002186379 A CA 002186379A CA 2186379 A CA2186379 A CA 2186379A CA 2186379 A1 CA2186379 A1 CA 2186379A1
Authority
CA
Canada
Prior art keywords
epithelium
ablative laser
epithelium removal
nonitors
irradi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002186379A
Other languages
French (fr)
Other versions
CA2186379C (en
Inventor
Roger F. Steinert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/218,720 external-priority patent/US5505724A/en
Application filed by Individual filed Critical Individual
Publication of CA2186379A1 publication Critical patent/CA2186379A1/en
Application granted granted Critical
Publication of CA2186379C publication Critical patent/CA2186379C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61F9/00802—Methods or devices for eye surgery using laser for photoablation
    • A61F9/00817—Beam shaping with masks
    • A61F9/00819—Beam shaping with masks with photoablatable masks
    • 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
    • A61F9/00804—Refractive treatments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00057—Light
    • A61B2017/00061—Light spectrum
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Laser Surgery Devices (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

This invention is an accurate, non-mechanical removal of the epithelium (16) from essentially only the area of the cornea to be treated. In particular, an epithelium ablative laser device irradi-ates the selected region of the epithelium with ablative laser energy (21), a spectro-scopic system nonitors (90) the ablation and spectroscopically determines whether epithelium is being ablated, and a control system (50) terminates the epithelium re-moval upon spectroscopic determination of a substantial absence of epithelium ab-lation.
CA002186379A 1994-03-28 1995-03-27 Epithelium removal Expired - Lifetime CA2186379C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/218,720 US5505724A (en) 1994-03-28 1994-03-28 Epithelium removal
US08/218,720 1994-03-28
PCT/US1995/003794 WO1995026162A1 (en) 1994-03-28 1995-03-27 Epithelium removal

Publications (2)

Publication Number Publication Date
CA2186379A1 true CA2186379A1 (en) 1995-10-05
CA2186379C CA2186379C (en) 2007-06-26

Family

ID=38278934

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002186379A Expired - Lifetime CA2186379C (en) 1994-03-28 1995-03-27 Epithelium removal

Country Status (1)

Country Link
CA (1) CA2186379C (en)

Also Published As

Publication number Publication date
CA2186379C (en) 2007-06-26

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150327