IP Library › Granted Patent US 7,588,825
Granted Patent B2
US 7,588,825 · App. 10/700,970 · Granted Sep 15, 2009

Embolic compositions

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Quick Facts
Patent No.
US 7,588,825
App. No.
10/700,970
Granted
Sep 15, 2009
Kind
B2
Abstract

Embolic compositions and methods of delivering the compositions are disclosed. In some embodiments, an embolic composition includes a first collection of particles having a first shape, and a second collection of particles having a second shape different than the first shape.

Claims (23)

1. A composition, comprising:

a first collection of embolic particles having a first shape; and

a second collection of embolic particles having a second shape different than the first shape, wherein the first shape and the second shape are interlocking shapes.

2. The composition of claim 1 , wherein the first shape is substantially free of a concave region.

3. The composition of claim 2 , wherein the first shape is substantially spherical.

4. The composition of claim 1 , wherein the second shape is flake-like.

5. The composition of claim 1 , wherein the second shape is strand-like.

6. The composition of claim 1 , wherein the second shape includes a generally convex region.

7. The composition of claim 1 , wherein the second shape comprises a fibrous element extending from a base.

8. The composition of claim 1 , wherein the particles in the first collection and the particles in the second collection have different compositions.

9. The composition of claim 1 , wherein the particles of at least one of the collections comprise a radiopaque material.

10. The composition of claim 1 , wherein the particles of at least one of the collections comprises a shape memory material and a non-shape memory material.

11. The composition of claim 1 , wherein the particles of the first collection is spherical, and the particles of the second collection are non-spherical.

12. The composition of claim 1 , wherein the particles of the first and second collections have different hardness.

13. The composition of claim 1 , wherein the particles of at least one of the collections comprise a material capable of increasing in volume upon exposure to a predetermined stimulus.

14. The composition of claim 13 , wherein the material comprises a hydrogel.

15. The composition of claim 1 , wherein the particles in the first collection and the particles in the second collection have different sizes.

16. The composition of claim 15 , wherein the size of the particles of at least one of the collections is about 1,200 microns or less.

17. The composition of claim 1 , wherein the first and second collections are configured to engage with each other.

18. The composition of claim 1 , wherein the first collection comprises particles comprising a shape memory material.

19. The composition of claim 1 , wherein the particles of at least one of the collections comprise a portion capable of dissolving in a body.

20. The composition of claim 1 , wherein the composition comprises at least a portion of the first collection of embolic particles separated from the second collection of embolic particles.

21. The composition of claim 1 , wherein the embolic particles of the first collection of embolic particles have an aspect ratio greater than one.

Assignments (1)
CHANGE OF NAME Recorded Nov 6, 2006
From: SCIMED LIFE SYSTEMS, INC.
To: BOSTON SCIENTIFIC SCIMED, INC.
Reel/Frame 018505/0868 →