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US 2014/0350137 A1Published application
Biocompatible x-ray opaque polymers for medical device
AssigneeSt. Jude Medical Systems AB
InventorsLisa Mellin, Karin Törne
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Abstract
The present application relates to a radio opaque material and a method of producing the same. The material is a hybrid material comprising two phases, an inorganic phase comprising a radio opaque substance and a polymer phase.
Claims30
A sol-gel method of producing a hybrid material comprising two phases;
- a first and a second phase wherein the first phase comprises an inorganic compound and the second phase comprises a biodegradable polymer, where the method comprises the steps of:
- providing a first solution comprising an inorganic precursor comprising at least one metal alkoxide compound that is radio opaque, and a first solvent;
- providing a second solution comprising a biodegradable polyether polymer and a second solvent miscible with the first solvent;
- forming a mixture by mixing the first and the second solutions;
- bringing the mixture in contact with liquid water or water in vapor phase;
- letting the liquid water or water in vapor phase react with the metal alkoxide to form a sol;
- letting the liquid water or water in vapor phase react further with the metal alkoxide to form a gel;
- and
- removing the solvents to form a solid material.
6 more elements
A hybrid material obtainable by a sol-gel method of producing a hybrid material comprising two phases;
- a first and a second phase wherein the first phase comprises an inorganic compound and the second phase comprises a biodegradable polymer, where the method comprises the steps of:
- providing a first solution comprising an inorganic precursor comprising at least one metal alkoxide compound that is radio opaque, and a first solvent;
- providing a second solution comprising a biodegradable polyether polymer and a second solvent miscible with the first solvent;
- forming a mixture by mixing the first and the second solutions;
- bringing the mixture in contact with liquid water or water in vapor phase;
- letting the liquid water or water in vapor phase react with the metal alkoxide to form a sol;
- letting the liquid water or water in vapor phase react further with the metal alkoxide to form a gel;
- and
- removing the solvents to form a solid material.
6 more elements
A hybrid material comprising two phases;
- a first and a second phase wherein the first phase comprises an inorganic radio opaque compound and the second phase comprises a biodegradable co-polymer of a polyether and a polyester.
Dependencies are inferred from the claim text.