CA2429930A1 - Sequentially cross-linked polyethylene - Google Patents

Sequentially cross-linked polyethylene Download PDF

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Publication number
CA2429930A1
CA2429930A1 CA002429930A CA2429930A CA2429930A1 CA 2429930 A1 CA2429930 A1 CA 2429930A1 CA 002429930 A CA002429930 A CA 002429930A CA 2429930 A CA2429930 A CA 2429930A CA 2429930 A1 CA2429930 A1 CA 2429930A1
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CA
Canada
Prior art keywords
polyethylene
irradiation
annealing
rod
oxygen
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
CA002429930A
Other languages
French (fr)
Other versions
CA2429930C (en
Inventor
Aiguo Wang
John H. Dumbleton
Aaron Essner
Shi-Shen Yau
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.)
Howmedica Osteonics Corp
Original Assignee
Howmedica Osteonics Corp
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 Howmedica Osteonics Corp filed Critical Howmedica Osteonics Corp
Publication of CA2429930A1 publication Critical patent/CA2429930A1/en
Application granted granted Critical
Publication of CA2429930C publication Critical patent/CA2429930C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/247—Heating methods
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00—Crosslinking
    • C08L2312/06—Crosslinking by radiation

Abstract

A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. If applied to a finished polyethylene part, the irradiation and annealing must be accomplished with the polyethylene material not in contact with oxygen at a concentration greater than 1% oxygen volume by volume. When applied to a preform, such as a rod, the annealing of the bulk polymer part of the rod from which the finished part is made must take place on the rod before the implant is machined therefrom and exposed to oxygen.
CA002429930A 2002-06-06 2003-05-27 Sequentially cross-linked polyethylene Expired - Lifetime CA2429930C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38666002P 2002-06-06 2002-06-06
US60/386,660 2002-06-06

Publications (2)

Publication Number Publication Date
CA2429930A1 true CA2429930A1 (en) 2003-12-06
CA2429930C CA2429930C (en) 2008-10-14

Family

ID=29550211

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002429930A Expired - Lifetime CA2429930C (en) 2002-06-06 2003-05-27 Sequentially cross-linked polyethylene

Country Status (7)

Country Link
US (8) US20030229155A1 (en)
EP (1) EP1369135B1 (en)
JP (1) JP4184872B2 (en)
AT (1) ATE291447T1 (en)
AU (1) AU2003204537B2 (en)
CA (1) CA2429930C (en)
DE (1) DE60300403T2 (en)

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US20100190920A1 (en) * 2007-02-14 2010-07-29 Anuj Bellare Crosslinked polymers and methods of making the same
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US20100292374A1 (en) * 2007-10-05 2010-11-18 Anuj Bellare Crosslinked polymers and methods of making the same
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WO2013169351A1 (en) * 2012-05-09 2013-11-14 Ticona Llc Polymer composition and articles for use in low temperature environments that are wear resistant
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US9586370B2 (en) 2013-08-15 2017-03-07 Biomet Manufacturing, Llc Method for making ultra high molecular weight polyethylene
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US20150266210A1 (en) * 2014-03-21 2015-09-24 Howmedica Osteonics Corp. Annealing method for cross-linked polyethylene
CN105172154B (en) * 2015-10-23 2017-10-24 安徽隆源成型科技有限公司 A kind of precinct laser sintering forming method of ultra-high molecular weight polyethylene
CN107303218A (en) * 2017-04-28 2017-10-31 上海旷视医疗科技有限公司 The security control of angle/sclera crosslinking technological and efficiency optimization system
US11952439B2 (en) 2020-06-25 2024-04-09 b-ONE Medical (Suzhou) Co., Ltd. Surface gradient cross-linking method of ultra-high molecular weight polyethylene and the application thereof
CN113980324A (en) * 2021-11-02 2022-01-28 苏州微创关节医疗科技有限公司 Ultra-high molecular weight polyethylene implant, preparation method thereof and artificial joint

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Also Published As

Publication number Publication date
US20130046042A1 (en) 2013-02-21
US9650476B2 (en) 2017-05-16
EP1369135A1 (en) 2003-12-10
US20160024261A1 (en) 2016-01-28
US20120029160A1 (en) 2012-02-02
US20030229155A1 (en) 2003-12-11
CA2429930C (en) 2008-10-14
US8680173B2 (en) 2014-03-25
US8324291B2 (en) 2012-12-04
JP2004043798A (en) 2004-02-12
US20100197881A1 (en) 2010-08-05
EP1369135B1 (en) 2005-03-23
DE60300403T2 (en) 2006-03-09
US8030370B2 (en) 2011-10-04
US20050043431A1 (en) 2005-02-24
US20090105439A1 (en) 2009-04-23
US7517919B2 (en) 2009-04-14
JP4184872B2 (en) 2008-11-19
DE60300403D1 (en) 2005-04-28
AU2003204537B2 (en) 2008-02-28
US9181409B2 (en) 2015-11-10
US20140194548A1 (en) 2014-07-10
ATE291447T1 (en) 2005-04-15
AU2003204537A1 (en) 2004-01-08
US7714036B2 (en) 2010-05-11

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