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1. WO1996039921 - METHOD AND APPARATUS FOR MEASURING CORNEAL INCISIONS

Publication Number WO/1996/039921
Publication Date 19.12.1996
International Application No. PCT/US1996/007631
International Filing Date 23.05.1996
Chapter 2 Demand Filed 07.01.1997
IPC
A61B 3/10 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 8/10 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
10Eye inspection
A61B 19/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
19Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
A61F 9/013 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
013for compensation of ocular refraction
CPC
A61B 8/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
10Eye inspection
A61B 90/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
90Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
06Measuring instruments not otherwise provided for
A61F 9/013
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
013Instruments; for compensation of ocular refraction
A61F 9/0133
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
013Instruments; for compensation of ocular refraction
0133Knives or scalpels specially adapted therefor
Applicants
  • KERAVISION, INC. [US]/[US]
Inventors
  • SCHOLL, John, Anthony
  • SILVESTRINI, Thomas, A.
  • GANDIONCO, Isidro, Matias
  • KUHN, William, C.
  • BAKER, Phillip, C.
Agents
  • SALTZBERG, Robert, A.
Priority Data
08/476,46207.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR MEASURING CORNEAL INCISIONS
(FR) PROCEDE ET SYSTEME POUR MESURER DES INCISIONS DE LA CORNEE
Abstract
(EN)
A method and apparatus for performing a surgical procedure on a patient is described. An incision (20) is made into the tissue of the patient to create a tissue pocket (30). Preferably, the tissue is corneal tissue of an eye. A reflective element (50) is inserted into the pocket (30). An energy source (82) generates a radiant energy signal, which is directed toward the reflective element (50). Reflected energy is received from the reflective element. A detector (94) determines the depth of the reflective element (50) below the anterior surface based upon the energy reflected by the reflective element (50). The speed of transmission of the radiant energy in the reflective element is different than the speed of transmission of the radiant energy in the tissue. The radiant energy may take the form of ultrasound or light.
(FR)
L'invention décrit un procédé et un système permettant d'effectuer une intervention chirurgicale sur un patient. Une incision (20) est faite dans du tissu dudit patient pour créer une poche tissulaire (30). De préférence, le tissu est du tissu de la cornée de l'oeil. Un élément réfléchissant (50) est inséré dans ladite poche (30). Une source d'énergie (82) génère un signal d'énergie rayonnée dirigé vers l'élément réfléchissant (50). L'élément réfléchissant renvoie de l'énergie réfléchie. Un détecteur (94) détermine la profondeur de l'élément réfléchissant (50) au-dessous de la surface antérieure en fonction de l'énergie réfléchie par l'élément réfléchissant (50). La vitesse de transmission de l'énergie rayonnée dans l'élément réfléchissant est différente de celle de l'énergie rayonnée dans le tissu. Cette énergie rayonnée peut prendre la forme d'ultrasons ou de lumière.
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