Embolization
First Claim
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1. A particle, comprising a polymeric matrix and a ferromagnetic material distributed in the polymeric matrix, wherein the particle has a diameter of about 3,000 microns or less, the particle has a center region with a certain density of large pores having a mean cross-section of 20 microns or more and a surface region with a certain density of large pores, and the density of large pores of the center region is greater than the density of large pores of the surface region.
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Abstract
A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.
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Citations
20 Claims
- 1. A particle, comprising a polymeric matrix and a ferromagnetic material distributed in the polymeric matrix, wherein the particle has a diameter of about 3,000 microns or less, the particle has a center region with a certain density of large pores having a mean cross-section of 20 microns or more and a surface region with a certain density of large pores, and the density of large pores of the center region is greater than the density of large pores of the surface region.
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17. A method, comprising:
- heating a plurality of particles disposed in a body lumen, wherein the particles comprise a polymeric matrix and a ferromagnetic material distributed in the polymeric matrix, the particles have a diameter of 3,000 microns or less, and the particles have a center region with a certain density of large pores having a mean cross-section of 20 microns or more and a surface region with a certain density of large pores, and the density of large pores in the center region is greater than the density of large pores of the surface region.
- View Dependent Claims (18, 19, 20)
Specification