Radiopaque compositions, articles and methods of making and using same
First Claim
1. An implant for a mammal comprising an object comprising polyetheretherketone (PEEK) and at least ten percent (10%) by weight bismuth trioxide (BiO3).
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Accused Products
Abstract
A radiopaque composition and implant comprising a mixture of a polymer, such as polyetherketone (PEEK), polyetherketone (PEK), polyetherketoneketone (PEKK), polyetherimide, or polyphenylsulfone, and bismuth trioxide (BiO3) is provided. The mixture comprises BiO3 of about twenty to thirty percent (20% to 30%) by weight. The composition is useful in radiopaque implants for mammals including humans, such as in catheters, stents, screws, anchors, dental caps and posts, bone and joint replacements, and the like. The composition is also useful for radiopaque markers in implants and for radiopaque articles used in surgical and other in vivo procedures. The radiopaque items can be easily identified and located in a patient'"'"'s body via X-ray examination or fluoroscopy.
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Citations
31 Claims
- 1. An implant for a mammal comprising an object comprising polyetheretherketone (PEEK) and at least ten percent (10%) by weight bismuth trioxide (BiO3).
- 14. An implant for a mammal comprising an item comprising BiO3 and one or more polymers selected from the group consisting of polyetheretherketone, polyetherketone, polyetherketoneketone, polyphenylsulfone, and polyetherimide, wherein said implant comprises BiO3 in an amount of between about twenty percent (20%) to thirty percent (30%) by weight.
- 18. A medical device comprising at least ten percent (10%) by weight bismuth trioxide (BiO3) and one or more polymers selected from the group consisting of polyetheretherketone, polyetherketone, polyetherketoneketone, polyphenlysulfone, and polyetherimide.
- 29. A medical device comprising polytetrafluoroethylene (PTFE) and at least ten percent (10%) by weight bismuth trioxide (BiO3).
Specification