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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (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 (fr)
EP (2) EP0687550B1 (fr)
JP (1) JP4094072B2 (fr)
AT (1) ATE226884T1 (fr)
AU (1) AU708998B2 (fr)
BR (1) BR9502735A (fr)
CA (1) CA2151333C (fr)
CZ (1) CZ146895A3 (fr)
DE (1) DE69528686T2 (fr)
DK (1) DK0687550T3 (fr)
IL (1) IL113691A0 (fr)
ZA (1) ZA954816B (fr)

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US7468398B2 (en) 1994-09-06 2008-12-23 Ciba Vision Corporation Extended wear ophthalmic lens
US5760100B1 (en) 1994-09-06 2000-11-14 Ciba Vision Corp Extended wear ophthalmic lens
US5681510A (en) † 1994-10-13 1997-10-28 Bausch & Lomb Incorporated Method for treating plastic mold pieces
DE69827481T2 (de) * 1997-03-25 2005-10-27 Novartis Ag Giessverfahren
US6113817A (en) * 1997-03-25 2000-09-05 Novartis Ag Molding processes
US20070157553A1 (en) * 1998-12-21 2007-07-12 Voss Leslie A Heat seal apparatus for lens packages
US20040112008A1 (en) 1998-12-21 2004-06-17 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
US6241918B1 (en) 1998-12-28 2001-06-05 Johnson & Johnson Vision Care, Inc. Process of manufacturing contact lenses in ambient environment
US6610220B1 (en) * 1998-12-28 2003-08-26 Johnson & Johnson Vision Care, Inc. Process of manufacturing contact lenses with measured exposure to oxygen
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
JP2002355830A (ja) 2001-03-26 2002-12-10 Novartis Ag 眼科用レンズの製造のための型及び方法
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
US6708397B2 (en) * 2001-08-09 2004-03-23 Johnson & Johnson Vision Care, Inc. Inlay station with alignment assemblies and transfer tubes
US7052454B2 (en) * 2001-10-20 2006-05-30 Applied Medical Resources Corporation Sealed surgical access device
WO2003103548A1 (fr) 2002-06-05 2003-12-18 Applied Medical Resources Corporation Ecarteur
US20050020884A1 (en) * 2003-02-25 2005-01-27 Hart Charles C. Surgical access system
US7163510B2 (en) 2003-09-17 2007-01-16 Applied Medical Resources Corporation Surgical instrument access device
ES2383689T3 (es) * 2003-09-23 2012-06-25 University Of North Carolina At Chapel Hill Perfluoropoliéteres fotocurables para su uso como materiales novedosos en dispositivos microfluídicos
US20080131593A1 (en) * 2004-01-29 2008-06-05 Powell P Mark Contact lens mold printing systems and processes
WO2007021762A2 (fr) 2005-08-09 2007-02-22 The University Of North Carolina At Chapel Hill Procedes et materiaux permettant de fabriquer des dispositifs microfluidiques
US7479247B2 (en) * 2005-05-12 2009-01-20 Victor Joyner Method and apparatus for creating sacrificial patterns and cast parts
US7625197B2 (en) * 2005-09-12 2009-12-01 Johnson & Johnson Vision Care, Inc. Devices and processes for performing degassing operations
WO2007044911A1 (fr) 2005-10-14 2007-04-19 Applied Medical Resources Corporation Procédé de fabrication d’un dispositif de laparoscopie à accès manuel
US20080179770A1 (en) * 2007-01-31 2008-07-31 Rooney Thomas R Free form ophthalmic lens mold
KR101409581B1 (ko) * 2007-05-18 2014-06-20 쿠퍼비젼 인터내셔날 홀딩 캄파니, 엘피 콘텍트 렌즈를 형성하기 위한 열 경화 방법 및 시스템
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
US20100155972A1 (en) * 2008-12-18 2010-06-24 Tollefson Norris M Injection molded ophthalmic lens mold
EP2373479B1 (fr) * 2008-12-18 2018-05-16 Novartis AG Moule et procede de fabrication d'un lentille ophtalmique
SG186422A1 (en) * 2010-07-09 2013-01-30 Coopervision Int Holding Co Lp Polar thermoplastic opthalmic lens molds, opthalmic lenses molded therein, and related methods
EP2637847B1 (fr) 2010-11-10 2014-07-23 Novartis AG Procédé pour fabriquer des lentilles de contact
KR102641182B1 (ko) 2011-05-10 2024-02-28 어플라이드 메디컬 리소시스 코포레이션 창상 견인기
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
KR20230038321A (ko) 2014-08-15 2023-03-17 어플라이드 메디컬 리소시스 코포레이션 자연 개구 수술 시스템
EP3223718A2 (fr) 2014-11-25 2017-10-04 Applied Medical Resources Corporation Écartement circonférentiel de plaies avec structures de support et de guidage
JP6953402B2 (ja) 2015-10-07 2021-10-27 アプライド メディカル リソーシーズ コーポレイション マルチセグメント型外側リング付き創傷レトラクタ
US11125916B2 (en) 2016-07-06 2021-09-21 Johnson & Johnson Vision Care, Inc. Silicone hydrogels comprising N-alkyl methacrylamides and contact lenses made thereof
US20220281192A1 (en) * 2021-03-05 2022-09-08 Bausch + Lomb Ireland Limited Molds for production of ophthalmic devices
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
US20230083845A1 (en) * 2021-09-14 2023-03-16 Alcon Inc. Production line for the production of ophthalmic lenses
US20230079414A1 (en) * 2021-09-14 2023-03-16 Alcon Inc. Production line for the production of ophthalmic lenses

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Also Published As

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

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