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Enhanced visibility materials for implantation in hard tissue

  • US 7,510,579 B2
  • Filed: 04/05/2001
  • Issued: 03/31/2009
  • Est. Priority Date: 10/14/1997
  • Status: Expired due to Fees
First Claim
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1. An injectable hard tissue implant composition comprising:

  • a settably hardenable, flowable matrix comprising polymethylmethacrylate;

    radiopaque tracer particles in said flowable matrix, said radiopaque tracer particles comprising at least particles having a size between about 350μ and

    2200μ and

    present in an amount so as to be individually visible during implantation; and

    radiopaque contrast particles comprising at least particles having a particle size between about 120μ and

    350μ

    ;

    wherein said contrast particles enhance the visibility of said matrix, andwherein said radiopaque tracer particles visibly indicate flow of said matrix during implantation.

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