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US 12,098,220 B2Granted
Radiopaque polymers
AssigneeBoston Scientific Medical Device Limited
InventorsAndrew Lennard Lewis, Jasmine Lord
Life of this patent
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Abstract
A liquid composition comprising a polymer having pendant groups of the formula I: (I) Wherein X is either a bond or is a linking group having 1 to 8 carbons and optionally 1 to 4 heteroatoms selected from O, N and S; and n is 1 to 4.
Claims14
A liquid embolic composition suitable for therapeutic embolization, the composition comprising a polymer in solution in an organic solvent, the polymer comprising units of the formula 1:
- wherein X is either a bond or is a linking group having 1 to 8 carbons and optionally 1 to 4 heteroatoms selected from O, N and S;
- wherein n is 1 to 4;
- wherein the polymer precipitates on contact with normal saline at 20° C.;
- wherein the precipitate has a radiodensity of at least 1000HU;
- and
- wherein the polymer is biodegradable.
3 more elements
Dependencies are inferred from the claim text.