Modified polymeric materials and methods of modifying polymeric materials
First Claim
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1. A method of forming a polymeric article suitable for use as an orthopedic implant, the method comprising:
- providing or receiving particles of a polymer resin;
exposing the particles of the polymer resin to a plasma, the plasma reacting with the particles of the polymer resin to bond one or more selected reactive groups to the particles; and
molding a polymeric article from the polymer resin after exposing the polymer resin to the plasma.
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Abstract
Methods of forming polymeric articles using plasma treated polymer resins, and orthopedic implants comprising a polymeric article wherein the polymeric article has reactive groups bonded to polymer molecules in an interior region of the polymeric article.
58 Citations
20 Claims
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1. A method of forming a polymeric article suitable for use as an orthopedic implant, the method comprising:
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providing or receiving particles of a polymer resin; exposing the particles of the polymer resin to a plasma, the plasma reacting with the particles of the polymer resin to bond one or more selected reactive groups to the particles; and molding a polymeric article from the polymer resin after exposing the polymer resin to the plasma. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of forming a polymeric article suitable for use as an orthopedic implant, the method comprising:
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providing or receiving particles of a first polymer resin; exposing particles of a first polymer resin to a first plasma, including reacting the particles of the first polymer resin with the first plasma to bond one or more selected reactive groups to the particles of the first polymer resin; exposing particles of a second polymer resin to a second plasma, including reacting the particles of the second polymer resin to bond one or more selected reactive groups to the particles of the second resin; and consolidating the first and second polymer resins to form a polymeric article that includes different reactive groups located in different regions of the polymer article. - View Dependent Claims (13, 14)
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15. A method of forming a polymeric article suitable for use as a medical implant, the method comprising:
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providing a plasma-modified polymer resin having one or more reactive groups bonded to particles of the plasma-modified polymer resin; and molding a polymeric article from the plasma-modified polymer resin, the one or more reactive groups located at least at an interior region of the polymeric article. - View Dependent Claims (16, 20)
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17. An orthopedic implant, comprising:
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an article comprising a polymer, the article having an outer surface and an interior region; the polymer including a plurality of polymer molecules having one or more reactive groups bonded thereto, the one or more reactive groups providing one or more properties selected from the group consisting of crosslinking, lubricity, wettability, hydrophobicity, hydrophilicity, wear resistance, tissue attachment, protein binding, reducing adverse biological reactions, reducing a chronic inflammatory response, reducing production of degrading enzymes and destructive species, and combinations thereof; and the plurality of polymer molecules being located at least at the interior region of the polymeric article. - View Dependent Claims (18, 19)
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Specification