Radiopaque glass material
AssigneeABK Biomedical Incorporated
InventorsSharon LEGERE, Daniel BOYD, Kathleen O'CONNELL, Marc GREGOIRE, F. Anthony HEADLEY, Jr.
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Abstract
A glass material that includes: from about 0.55 to about 0.85 mole fraction of SiO2; from about 0.01 to about 0.23 mole fraction of Na2O, K2O, or a combination of Na2O and K2O; from about 0.05 to about 0.28 mole fraction of: Y2O3, BaO, or a combination of Y2O3 and BaO; and optionally Ta2O5. In the glass material, the sum of the Y2O3, the BaO and the optional Ta2O5 is from about 0.10 to about 0.31 mole fraction. The glass material may be in the form of microspheres. The microspheres may be used for vascular embolization and/or radiologic imaging.
Claims110
A glass material, wherein the glass comprises:
- from about 0.55 to about 0.85 mole fraction of SiO2;
- from about 0.01 to about 0.23 mole fraction of Na2O, K2O, or a combination of Na2O and K2O;
- from about 0.05 to about 0.28 mole fraction of:
- Y2O3, BaO, or a combination of Y2O3 and BaO;
- and
- optionally Ta2O5,
- wherein the sum of the Y2O3, the BaO and the optional Ta2O5 is from about 0.10 to about 0.31 mole fraction.
Dependencies are inferred from the claim text.