ZA954816B - Low oxygen molding of soft contact lenses - Google Patents

Low oxygen molding of soft contact lenses

Info

Publication number
ZA954816B
ZA954816B ZA954816A ZA954816A ZA954816B ZA 954816 B ZA954816 B ZA 954816B ZA 954816 A ZA954816 A ZA 954816A ZA 954816 A ZA954816 A ZA 954816A ZA 954816 B ZA954816 B ZA 954816B
Authority
ZA
South Africa
Prior art keywords
lens molds
soft contact
contact lenses
low oxygen
filling
Prior art date
Application number
ZA954816A
Other languages
English (en)
Inventor
Wallace Anthony Martin
Jonathan Patrick Adams
John Benjamin Enns
Ture Kindt-Larsen
Original Assignee
Johnson & Johnson Vision Prod
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 Johnson & Johnson Vision Prod filed Critical Johnson & Johnson Vision Prod
Publication of ZA954816B publication Critical patent/ZA954816B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/006—Degassing moulding material or draining off gas during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/42—Casting under special conditions, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/005—Using a particular environment, e.g. sterile fluids other than air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2825/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as mould material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0041—Contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/757—Moulds, cores, dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Glass Compositions (AREA)
ZA954816A 1994-06-10 1995-06-09 Low oxygen molding of soft contact lenses ZA954816B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25780294A 1994-06-10 1994-06-10

Publications (1)

Publication Number Publication Date
ZA954816B true ZA954816B (en) 1996-12-09

Family

ID=22977811

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA954816A ZA954816B (en) 1994-06-10 1995-06-09 Low oxygen molding of soft contact lenses

Country Status (12)

Country Link
US (1) US5753150A (de)
EP (2) EP0687550B1 (de)
JP (1) JP4094072B2 (de)
AT (1) ATE226884T1 (de)
AU (1) AU708998B2 (de)
BR (1) BR9502735A (de)
CA (1) CA2151333C (de)
CZ (1) CZ146895A3 (de)
DE (1) DE69528686T2 (de)
DK (1) DK0687550T3 (de)
IL (1) IL113691A0 (de)
ZA (1) ZA954816B (de)

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US7468398B2 (en) 1994-09-06 2008-12-23 Ciba Vision Corporation Extended wear ophthalmic lens
US5681510A (en) † 1994-10-13 1997-10-28 Bausch & Lomb Incorporated Method for treating plastic mold pieces
US6113817A (en) * 1997-03-25 2000-09-05 Novartis Ag Molding processes
AU731550B2 (en) * 1997-03-25 2001-04-05 Novartis Ag Molding processes
US20070157553A1 (en) * 1998-12-21 2007-07-12 Voss Leslie A Heat seal apparatus for lens packages
US20040074525A1 (en) * 2001-03-27 2004-04-22 Widman Michael F. Transfer apparatus and method and a transfer apparatus cleaner and method
US20040112008A1 (en) 1998-12-21 2004-06-17 Voss Leslie A. Heat seal apparatus for lens packages
US6610220B1 (en) * 1998-12-28 2003-08-26 Johnson & Johnson Vision Care, Inc. Process of manufacturing contact lenses with measured exposure to oxygen
US6241918B1 (en) 1998-12-28 2001-06-05 Johnson & Johnson Vision Care, Inc. Process of manufacturing contact lenses in ambient environment
US6609041B1 (en) * 1999-05-05 2003-08-19 Johnson & Johnson Vision Care, Inc. Method and system for SKU tracking and changeover
US6364934B1 (en) 2000-07-31 2002-04-02 Bausch & Lomb Incorporated Method of making ocular devices
ATE526135T1 (de) 2001-03-26 2011-10-15 Novartis Ag Giessform und verfahren zur herstellung von opthalmischen linsen
US6663801B2 (en) * 2001-04-06 2003-12-16 Johnson & Johnson Vision Care, Inc. Silicon carbide IR-emitter heating device and method for demolding lenses
US7008570B2 (en) * 2001-08-09 2006-03-07 Stephen Pegram Method and apparatus for contact lens mold assembly
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EP2363105B1 (de) * 2002-06-05 2014-01-08 Applied Medical Resources Corporation Wundspreizer
US20050020884A1 (en) * 2003-02-25 2005-01-27 Hart Charles C. Surgical access system
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US8268446B2 (en) 2003-09-23 2012-09-18 The University Of North Carolina At Chapel Hill Photocurable perfluoropolyethers for use as novel materials in microfluidic devices
US20080131593A1 (en) * 2004-01-29 2008-06-05 Powell P Mark Contact lens mold printing systems and processes
US7479247B2 (en) * 2005-05-12 2009-01-20 Victor Joyner Method and apparatus for creating sacrificial patterns and cast parts
EP2537657A3 (de) 2005-08-09 2016-05-04 The University of North Carolina At Chapel Hill Verfahren und Materialien zur Herstellung mikrofluidischer Vorrichtungen
US7625197B2 (en) * 2005-09-12 2009-12-01 Johnson & Johnson Vision Care, Inc. Devices and processes for performing degassing operations
EP2272449B1 (de) 2005-10-14 2012-01-18 Applied Medical Resources Corporation Wundhaken mit geteiltem Reifen
US20080179770A1 (en) * 2007-01-31 2008-07-31 Rooney Thomas R Free form ophthalmic lens mold
WO2008144427A1 (en) * 2007-05-18 2008-11-27 Coopervision International Holding Company, Lp Thermal curing methods and systems for forming contact lenses
US8262952B2 (en) * 2007-10-31 2012-09-11 Bausch & Lomb Incorporated Molds for production of ophthalmic devices
US20090295004A1 (en) * 2008-06-02 2009-12-03 Pinsly Jeremy B Silicone hydrogel contact lenses displaying reduced protein uptake
HUE031152T2 (en) * 2008-12-18 2017-06-28 Novartis Ag A method for making molds for injection molded ophthalmic lenses and such molds
WO2010069961A1 (en) * 2008-12-18 2010-06-24 Novartis Ag Mold release sheet
JP5956438B2 (ja) 2010-07-09 2016-07-27 クーパーヴィジョン インターナショナル ホウルディング カンパニー リミテッド パートナーシップ 極性熱可塑性眼用レンズ型、その中で成型された眼用レンズ、および関連する方法
WO2012064699A1 (en) 2010-11-10 2012-05-18 Novartis Ag Method for making contact lenses
WO2012154845A1 (en) 2011-05-10 2012-11-15 Applied Medical Resources Corporation Wound retractor
US20130258276A1 (en) * 2012-03-27 2013-10-03 Jonathan Hansen Increased stiffness center optic in soft contact lenses for astigmatism correction
US10209534B2 (en) 2012-03-27 2019-02-19 Johnson & Johnson Vision Care, Inc. Increased stiffness center optic in soft contact lenses for astigmatism correction
ES2731049T3 (es) 2014-08-15 2019-11-13 Applied Med Resources Sistema de cirugía por orificio natural
EP3223718A2 (de) 2014-11-25 2017-10-04 Applied Medical Resources Corporation Umlaufende wundretraktion mit unterstützungs- und führungsstrukturen
WO2017062850A2 (en) 2015-10-07 2017-04-13 Applied Medical Resources Corporation Wound retractor with multi-segment outer ring
US11125916B2 (en) 2016-07-06 2021-09-21 Johnson & Johnson Vision Care, Inc. Silicone hydrogels comprising N-alkyl methacrylamides and contact lenses made thereof
EP4301571A1 (de) * 2021-03-05 2024-01-10 Bausch + Lomb Ireland Limited Formen zur herstellung von ophthalmischen vorrichtungen
TW202323018A (zh) * 2021-09-14 2023-06-16 瑞士商愛爾康公司 用於生產眼科透鏡之生產線
TW202337672A (zh) * 2021-09-14 2023-10-01 瑞士商愛爾康公司 用於生產眼科透鏡之生產線
TW202323017A (zh) * 2021-09-14 2023-06-16 瑞士商愛爾康公司 用於生產眼科透鏡之生產線

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Also Published As

Publication number Publication date
DE69528686T2 (de) 2003-06-12
DE69528686D1 (de) 2002-12-05
JP4094072B2 (ja) 2008-06-04
EP0687550B1 (de) 2002-10-30
US5753150A (en) 1998-05-19
IL113691A0 (en) 1995-08-31
AU708998B2 (en) 1999-08-19
ATE226884T1 (de) 2002-11-15
DK0687550T3 (da) 2003-02-24
EP0687550A2 (de) 1995-12-20
CA2151333C (en) 2006-06-06
EP1223026A1 (de) 2002-07-17
JPH08187794A (ja) 1996-07-23
EP0687550A3 (de) 1996-11-20
CZ146895A3 (en) 1997-04-16
BR9502735A (pt) 1996-03-12
AU2055795A (en) 1995-12-21
CA2151333A1 (en) 1995-12-11

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