METHOD OF MAKING CROSSLINKED POLYMERIC MATERIAL FOR ORTHOPAEDIC IMPLANTS

A method for making a crosslinked polymeric material for use in an orthopaedic device is described. The method may include the use of one or more crosslinking enhancers to enhance the crosslinking process. 1. A method of making crosslinked UHMWPE , comprising:contacting UHMWPE with a crosslinking enhancer; and crosslinking the UHMWPE by exposing the UHMWPE to a radiation dose from about 1 Mrad to about 50 Mrad.2. The method of claim 1 , wherein:the crosslinking enhancer includes at least one of the following, acrylic, methacrylic, ethacrylic, citraconic, maleic, malonic, mesaconic acids and ester and amide derivatives thereof.3. The method of claim 1 , wherein:the crosslinking enhancer includes at least one of the following, hydroxyethyl methacrylate, allyl acrylate, allyl methacrylate, diallyl fumarate, ethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, butanedioldimethacrylate, 1,6-hexanediol dimethacrylate, 1,4-butylene glycol dimethacrylate, trimethylolpropane-trimethacrylate, pentaerythritol tetramethacrylate, tripropylene glycol diacrylate, neopentyl glycol diacrylate, tetraethylene glycol diacrylate, trimethylol propane triacrylate, trimethylol propane ethoxylate triacrylate, pentaerythritol tetraacrylate, diallyl phthalate, triallyl cyanurate, divinyl benzene, triallyl isocyanurate, diacetylene(2,4-hexadiyn-1,6-bis(n-butyl urethane), 2,4-hexadiyn-1,6-bis(ethyl urethane).4. The method of claim 1 , wherein: {'br': None, 'sub': 2', '2', 'n', '2, 'HC═CH—(CH)—CH═CH'}, 'the crosslinking enhancer includes a compound having the formula'}wherein n is from 10 to 26.6. The method of claim 1 , wherein:the crosslinking enhancer includes at least one vinyl ester having one or more non-terminal double bond.7. The method of claim 1 , wherein: {'br': None, 'sub': 2', 'n, 'HS—(CH)—SH'}, 'the crosslinking enhancer includes a compound having the formula'}wherein n is from 6 to 30.8. The method of claim 7 , wherein:the crosslinking enhancer includes at least ...

Composite for implantation in the body of an animal and method for making the same

Composites that include a ceramic substance disposed in a polymeric material and associated methods for making the same.

Composite for implantation in the body of an animal and method for making the same

Composites that include a ceramic substance disposed in a polymeric material and associated methods for making the same.

Medical implant or medical implant part with ultrahigh molecular weight polyethylene and at least one hydrophilic polymer

A medical implant or medical implant part comprises a body and a surface layer. The surface layer comprises a mixture comprising at least one hydrophilic polymer and ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more.

Method of making an implantable orthopaedic bearing

An method of making an orthopaedic bearing includes securing polymer composite to a metallic component. An orthopaedic bearing is also disclosed.

Process for producing medical implant or medical implant part comprising porous UHMWPE

The invention provides a medical implant or medical implant part comprising porous ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more and a porosity of about 15% to about 65%. The invention further provides a process for producing a medical implant or medical implant part.

Process for producing medical implant or medical implant part comprising porous uhmwpe

The invention provides a medical implant or medical implant part comprising porous ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more and a porosity of about 15% to about 65%. The invention further provides a process for producing a medical implant or medical implant part.

Medical implant or medical implant part comprising porous UHMWPE and process for producing the same

The invention provides a medical implant or medical implant part comprising porous ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more and a porosity of about 15% to about 65%. The invention further provides a process for producing a medical implant or medical implant part.

Method for producing medical implant or medical implant part

The invention provides a medical implant or medical implant part comprising a body and a surface layer, wherein the surface layer comprises a mixture comprising at least one hydrophilic polymer and ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more. The invention also provides a method for producing such a medical implant or medical implant.

Polymer composition comprising cross-linked polyethylene and methods for making the same

The invention provides a polymer composition comprising cross-linked polyethylene having a non-polar biocompatible lipid disposed in at least a portion of the free volume of the polyethylene. The invention further provides methods for making the polymer composition.

Polymer composition comprising cross-linked polyethylene

A polymer composition which comprises cross-linked polyethylene having a non-polar biocompatible lipid disposed in at least a portion of the free volume of the polyethylene, comprising at least one of squalane, fatty acids, glycerides, polyisoprenoids, cholesterol and cholesterol esters is made by a method which involves contacting a polymer preform with a solution of the lipid, and irradiating the polymer preform so that it becomes crosslinked.

Polymer composition comprising cross-linked polyethylene and methods for making the same

A polymer composition comprises cross-linked polyethylene having a non-polar biocompatible lipid disposed in at least a portion of the free volume of the polyethylene, comprising at least one of squalane, fatty acids, glycerides, polyisoprenoids, cholesterol and cholesterol esters. The composition can be made by a method which involves contacting a polymer preform with a solution of the lipid, and irradiating the polymer preform so that it becomes crosslinked.

Orthopaedic bearing and method for making the same

An orthopaedic bearing includes a metallic component having a polymer composite secured thereto. A method of making an orthopaedic bearing is also disclosed.

Orthopaedic Bearing And Method For Making The Same

An orthopaedic bearing includes a metallic component having a polymer composite secured thereto. A method of making an orthopaedic bearing is also disclosed.

Orthopaedic bearing and method for making the same

An orthopaedic bearing includes a ceramic component having a polymer composite secured thereto. A method of making an orthopaedic bearing is also disclosed.

Orthopaedic bearing material

Disclosed is a polymeric orthopaedic bearing material for use as an implant material or part thereof comprising one or more crosslinked regions and one or more non-crosslinked or substantially non-crosslinked regions at the surface. The bearing material can be prepared from a crosslinkable polymer, e.g., ultrahigh molecular weight polyethylene. The orthopaedic bearing material has an advantageous combination of at least one wear property and at least one mechanical property. Also disclosed are processes for producing orthopaedic bearing materials, for example, by irradiating a raw material in consolidated form through a radiation mask having a perforated pattern for crosslinking selected regions of the raw material, and optionally shaping the raw material into a bearing material. Alternatively, a pulsed radiation beam can be used for crosslinking.

Blends of Poly(Ethylene Terephthalate) and Monovinyl/Conjugated Diene Block Copolymers

A composition comprising (A) a monovinylarene/conjugated dime block copolymer, (B) a modified polyethylene terephthalate), and (C) a polyethylene terephthalate). A process for preparing the composition and articles manufactured from the composition are also provided.

Orthopaedic bearing and method of making the same

Medical implant or medical implant part comprising porous ultrahigh molecular weight polyethylene and process for producing the same

MIXTURES OF POLY (ETHYLENE TEREFTALATE) AND CO-POLYMERS OF CONJUGATED MONOVINYLARENE / DIENE BLOCKS.

SE PRESENTA UNA COMPOSICION QUE COMPRENDE (A) UN COPOLIMERO DE BLOQUE DE DIENO DE MONOVINILARENO/CONJUGADO, (B) UN POLI(TEREFTALATO DE ETILENO) MODIFICADO, Y (C) UN POLI(TEREFTALATO DE ETILENO). TAMBIEN SE SUMINISTRAN PROCEDIMIENTOS PARA PREPARAR LA COMPOSICION Y ARTICULOS MANUFACTURADOS A PARTIR DE LA COMPOSICION. A COMPOSITION IS PRESENTED INCLUDING (A) A MONOVINYLARENE / CONJUGATE DIENO BLOCK COPOLYMER, (B) A MODIFIED POLY (ETHYLENE TEREFTALATE), AND (C) A POLY (ETHYLENE TEREFTALATE). PROCEDURES ARE ALSO SUPPLIED TO PREPARE THE COMPOSITION AND ARTICLES MANUFACTURED FROM THE COMPOSITION.

Medical implant or medical implant part and method for producing the same

Verfahren zur herstellung einer polymerzusammensetzung enthaltend vernetztes polyethylen

Gelenkeoberflächematerialen zur herstellung von medizinische implantate

Mischungen von polyethylenterephthalat und blockcopoly- meren aus monovinylaromaten und konjugierten dienen

Verfahren zur herstellung eines orthopädischen trägerteils

Medizinisches implantat oder teil davon enthaltend poröses uhmwpe und verfahren zur dessen herstellung