CA2269029A1 - Cryogenic polishing method for soft acrylic articles - Google Patents

Cryogenic polishing method for soft acrylic articles

Info

Publication number
CA2269029A1
CA2269029A1 CA002269029A CA2269029A CA2269029A1 CA 2269029 A1 CA2269029 A1 CA 2269029A1 CA 002269029 A CA002269029 A CA 002269029A CA 2269029 A CA2269029 A CA 2269029A CA 2269029 A1 CA2269029 A1 CA 2269029A1
Authority
CA
Canada
Prior art keywords
articles
polishing
cleaning
soft acrylic
polishing method
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
CA002269029A
Other languages
French (fr)
Other versions
CA2269029C (en
Inventor
Kevin Lewellen
John W. Sheets, Jr.
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.)
Alcon Vision LLC
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 CA2269029A1 publication Critical patent/CA2269029A1/en
Application granted granted Critical
Publication of CA2269029C publication Critical patent/CA2269029C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/044—Cleaning involving contact with liquid using agitated containers in which the liquid and articles or material are placed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/0006—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for intraocular lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/0025—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/20—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/02—Polishing compositions containing abrasives or grinding agents
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/145—Corneal inlays, onlays, or lenses for refractive correction
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes

Abstract

A method for polishing articles comprising soft acrylic materials is disclosed. The method includes a cryogenic polishing step and a cleaning step. In the polishing step, a receptacle is charged with polishing beads of various sizes, sodium bicarbonate, a swelling agent and the articles to be polished, for a period of time and at a rotation speed sufficient to remove surface irregularities. Following the polishing step, a receptacle is charged with (a) a cleaning slurry comprising cleaning beads of various sizes and (i) sodium hydroxide and water or (ii) alumina, a surfactant and a solvent and (b) the articles to be cleaned, for a period of time and at a rotation speed sufficient to clean the surface of the polished articles. Agitation is preferably accomplished by a tumbling machine.
CA002269029A 1996-11-01 1997-10-31 Cryogenic polishing method for soft acrylic articles Expired - Fee Related CA2269029C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2996996P 1996-11-01 1996-11-01
US60/029,969 1996-11-01
PCT/US1997/019881 WO1998019826A1 (en) 1996-11-01 1997-10-31 Cryogenic polishing method for soft acrylic articles

Publications (2)

Publication Number Publication Date
CA2269029A1 true CA2269029A1 (en) 1998-05-14
CA2269029C CA2269029C (en) 2003-12-23

Family

ID=21851840

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002269029A Expired - Fee Related CA2269029C (en) 1996-11-01 1997-10-31 Cryogenic polishing method for soft acrylic articles

Country Status (11)

Country Link
US (1) US6010391A (en)
EP (1) EP0935512B1 (en)
JP (1) JP2001504042A (en)
AT (1) ATE218085T1 (en)
AU (1) AU716980B2 (en)
CA (1) CA2269029C (en)
DE (1) DE69712905T2 (en)
DK (1) DK0935512T3 (en)
ES (1) ES2175485T3 (en)
PT (1) PT935512E (en)
WO (1) WO1998019826A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3192396B2 (en) * 1997-11-07 2001-07-23 日本ピラー工業株式会社 Rotary joint for fluid
US6468306B1 (en) 1998-05-29 2002-10-22 Advanced Medical Optics, Inc IOL for inhibiting cell growth and reducing glare
JP3347295B2 (en) * 1998-09-09 2002-11-20 松下電器産業株式会社 Component mounting tool and component mounting method and device using the same
DE69903192T2 (en) * 1999-01-05 2003-01-30 Alcon Lab Inc COOLING TEMPERATURE POLISHING METHOD FOR SOFT ACRYLIC OBJECTS
CA2398616A1 (en) * 2000-03-06 2001-09-13 Alcon Laboratories, Inc. Polishing method for soft acrylic articles
US6575814B1 (en) * 2000-08-21 2003-06-10 Bausch & Lomb Incorporated Dry polishing of intraocular lenses
US6648741B2 (en) * 2002-03-14 2003-11-18 Advanced Medical Optics, Inc. Apparatus for protecting the edge geometry of an intraocular lens during glass bead polishing process
US20050183741A1 (en) * 2004-02-20 2005-08-25 Surjaatmadja Jim B. Methods of cleaning and cutting using jetted fluids
US20050232972A1 (en) * 2004-04-15 2005-10-20 Steven Odrich Drug delivery via punctal plug
EP2377569A1 (en) * 2004-07-02 2011-10-19 QLT Plug Delivery, Inc. Treatment medium delivery device and methods for delivery of such treatment mediums to the eye using such a delivery device
EP2182078B1 (en) * 2005-09-01 2012-02-01 Bristol-Myers Squibb Company Biomarkers and methods for determining sensitivity to vascular endothelial growth factor receptor-2 modulators
US8795711B2 (en) 2006-03-31 2014-08-05 Mati Therapeutics Inc. Drug delivery methods, structures, and compositions for nasolacrimal system
HUE043167T2 (en) * 2006-06-26 2019-08-28 Novartis Ag Method and apparatus for cleaning of ophthalmic lenses
ES2533359T3 (en) * 2007-09-07 2015-04-09 Mati Therapeutics Inc. Drug cores for sustained release of therapeutic agents
AU2008296872A1 (en) 2007-09-07 2009-03-12 Qlt Inc. Lacrimal implants and related methods
SG184728A1 (en) 2007-09-07 2012-10-30 Quadra Logic Tech Inc Lacrimal implant detection
WO2009035567A2 (en) * 2007-09-07 2009-03-19 Qlt Plug Delivery, Inc Insertion and extraction tools for lacrimal implants
RU2010136822A (en) * 2008-02-18 2012-03-10 Клт Плаг Диливери, Инк. (Us) LACRIMAL IMPLANTS AND RELATED WAYS
EP2276471B1 (en) 2008-04-30 2018-08-08 Mati Therapeutics Inc. Composite lacrimal insert and related methods
US9949942B2 (en) * 2008-05-09 2018-04-24 Mati Therapeutics Inc. Sustained release delivery of active agents to treat glaucoma and ocular hypertension
MX2010013010A (en) 2008-05-30 2011-05-03 Qlt Plug Delivery Inc Surface treated implantable articles and related methods.
TWI531362B (en) * 2008-07-21 2016-05-01 艾爾康股份有限公司 Ophthalmic device having therapeutic agent delivery capability
CA2752645C (en) * 2009-02-23 2017-10-03 Qlt Inc. Lacrimal implants and related methods
US20120038022A1 (en) * 2009-03-25 2012-02-16 Sharp Kabushiki Kaisha Insulating substrate for semiconductor device, and semiconductor device
WO2013019875A1 (en) * 2011-08-02 2013-02-07 Lawrence Livermore National Security, Llc Method and system for polishing solid hollow spheres
US9974685B2 (en) 2011-08-29 2018-05-22 Mati Therapeutics Drug delivery system and methods of treating open angle glaucoma and ocular hypertension
CA2846384C (en) 2011-08-29 2020-12-15 Qlt Inc. Sustained release delivery of active agents to treat glaucoma and ocular hypertension
CN104385109A (en) * 2014-09-25 2015-03-04 湖北大禹汉光真空电器有限公司 Acid-free surface treatment technology of electrical pure iron and stainless steel parts for electrical vacuum device

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US2554701A (en) * 1947-03-04 1951-05-29 Doehler Jarvis Corp Treatment of articles to remove some of the outside material therefrom or to polish the same
US3535159A (en) * 1967-12-07 1970-10-20 Branson Instr Method and apparatus for applying ultrasonic energy to a workpiece
US3874124A (en) * 1973-02-20 1975-04-01 Harry C Morgan Method and apparatus for machining and/or polishing molded elastomer materials
US3997358A (en) * 1976-02-19 1976-12-14 Motorola, Inc. Cleaning process for semiconductor die
DE2817312C2 (en) * 1978-04-20 1986-09-25 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Vibratory vibratory finishing processes including apparatus for carrying out the same
US4580371A (en) * 1983-10-17 1986-04-08 Iolab Corporation Method for tumble grinding optical lens edge
JPS63169439A (en) * 1986-12-31 1988-07-13 Atsushi Miyata Bathwater circulating and temperature keeping device attachable in bathroom
US4796386A (en) * 1987-06-25 1989-01-10 U.S. Product Development Company Non-metallic edge guard attachment to a door
US4796388A (en) * 1987-07-09 1989-01-10 Al Steckis Deflashing apparatus
US5133159A (en) * 1989-01-13 1992-07-28 Nestle S.A. Method for polishing silicone products
US5290892A (en) * 1990-11-07 1994-03-01 Nestle S.A. Flexible intraocular lenses made from high refractive index polymers
US5571558A (en) * 1991-10-10 1996-11-05 Chiron Vision Corporation Silicone IOL tumbling process
SE9202925D0 (en) * 1992-10-07 1992-10-07 Kabi Pharmacia Ab METHOD IN THE PRODUCTION OF INTRAOCULAR LENSES
US5725811A (en) * 1994-06-27 1998-03-10 Chiron Vision Corporation IOL tumbling process

Also Published As

Publication number Publication date
DE69712905D1 (en) 2002-07-04
ATE218085T1 (en) 2002-06-15
US6010391A (en) 2000-01-04
EP0935512B1 (en) 2002-05-29
ES2175485T3 (en) 2002-11-16
AU716980B2 (en) 2000-03-16
DE69712905T2 (en) 2002-11-21
DK0935512T3 (en) 2002-07-29
JP2001504042A (en) 2001-03-27
AU5427598A (en) 1998-05-29
PT935512E (en) 2002-09-30
EP0935512A1 (en) 1999-08-18
CA2269029C (en) 2003-12-23
WO1998019826A1 (en) 1998-05-14

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Legal Events

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