CA2211031A1 - Method and apparatus for lenticular liquefaction and aspiration - Google Patents

Method and apparatus for lenticular liquefaction and aspiration

Info

Publication number
CA2211031A1
CA2211031A1 CA002211031A CA2211031A CA2211031A1 CA 2211031 A1 CA2211031 A1 CA 2211031A1 CA 002211031 A CA002211031 A CA 002211031A CA 2211031 A CA2211031 A CA 2211031A CA 2211031 A1 CA2211031 A1 CA 2211031A1
Authority
CA
Canada
Prior art keywords
heat
heated solution
surgeon
nucleus
allows
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
CA002211031A
Other languages
French (fr)
Other versions
CA2211031C (en
Inventor
Mark Andrew
Mylina Andrew
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
Application filed by Individual filed Critical Individual
Publication of CA2211031A1 publication Critical patent/CA2211031A1/en
Application granted granted Critical
Publication of CA2211031C publication Critical patent/CA2211031C/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
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • 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
    • A61B2017/00137—Details of operation mode
    • A61B2017/00154—Details of operation mode pulsed
    • A61B2017/00172—Pulse trains, bursts, intermittent continuous operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
    • A61B2018/00035—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open with return means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
    • A61B2018/046—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid in liquid form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0612—Eyes

Abstract

A technique is described for liquefying, or gelifying, a hardened, cataractous lens nucleus and aspirating the same. Heat or heated solution is delivered to the lens nucleus in vivo so that the heat or heated solution is placed in contact with the hardened nucleus in order to heat and liquefy the same. The lens nucleus is irrigated simultaneously with a cooled solution to thereby limit to a very small area where the heat or heated solution is present in the eye. This allows the surgeon precise control over which intraocular anterior segment structures are exposed to the heat or heated solution. The liquefied lens nuclear material is then aspirated from the eye. The above allows the removal of a lens nucleus through a 1 to 2 mm corneal or limbal incision which is smaller than the smallest incision allowable with previously known small incision cataract techniques. The above benefits the patient as it allows small incision cataract removal to be done in a way that is non-traumatic to intraocular structures. The above benefits the surgeon, and the patient, in that it is a relatively straightforward and easy surgical maneuver for the surgeon to perform. This is in stark contrast to current phacoemulsification, which is potentially very traumatic to intraocular structures, and which is a relatively difficult surgical maneuver to perform.
CA002211031A 1995-02-06 1995-12-18 Method and apparatus for lenticular liquefaction and aspiration Expired - Lifetime CA2211031C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/384,655 US5616120A (en) 1995-02-06 1995-02-06 Method and apparatus for lenticular liquefaction and aspiration
US08/384,655 1995-02-06
PCT/US1995/017072 WO1996024314A1 (en) 1995-02-06 1995-12-18 Method and apparatus for lenticular liquefaction and aspiration

Publications (2)

Publication Number Publication Date
CA2211031A1 true CA2211031A1 (en) 1996-08-15
CA2211031C CA2211031C (en) 2002-02-05

Family

ID=23518202

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002211031A Expired - Lifetime CA2211031C (en) 1995-02-06 1995-12-18 Method and apparatus for lenticular liquefaction and aspiration

Country Status (11)

Country Link
US (3) US5616120A (en)
EP (1) EP0812169B1 (en)
JP (1) JP3599744B2 (en)
AT (1) ATE262871T1 (en)
AU (1) AU704305B2 (en)
CA (1) CA2211031C (en)
DE (1) DE69532822T2 (en)
DK (1) DK0812169T3 (en)
ES (1) ES2217290T3 (en)
PT (1) PT812169E (en)
WO (1) WO1996024314A1 (en)

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ES2217290T3 (en) 2004-11-01
AU704305B2 (en) 1999-04-22
US6319222B1 (en) 2001-11-20
EP0812169A4 (en) 1999-09-01
EP0812169A1 (en) 1997-12-17
US5616120A (en) 1997-04-01
ATE262871T1 (en) 2004-04-15
AU4691596A (en) 1996-08-27
JPH10513091A (en) 1998-12-15
DK0812169T3 (en) 2004-08-02
DE69532822T2 (en) 2005-03-17
CA2211031C (en) 2002-02-05
WO1996024314A1 (en) 1996-08-15
JP3599744B2 (en) 2004-12-08
EP0812169B1 (en) 2004-03-31
US6074358A (en) 2000-06-13
PT812169E (en) 2004-08-31
DE69532822D1 (en) 2004-05-06

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