Embolization
First Claim
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1. A particle comprising a first polymer, the particle having an interior region and a surface region, a weight percent of the first polymer in the interior region of the particle being less than a weight percent of the first polymer at the surface region of the particle, and the particle having a diameter of from about ten microns to about 3,000 microns,wherein the first polymer has the formula D-B-[O-(A-O)n-B]m-D, where O is a first oligomeric segment, B is a first coupling segment, A is a second coupling segment, D is a polyfluoro oligomeric group, m is from one to 20, and n is from zero to 20.
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Abstract
Embolization, as well as related particles, compositions, and methods, are disclosed.
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33 Claims
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1. A particle comprising a first polymer, the particle having an interior region and a surface region, a weight percent of the first polymer in the interior region of the particle being less than a weight percent of the first polymer at the surface region of the particle, and the particle having a diameter of from about ten microns to about 3,000 microns,
wherein the first polymer has the formula D-B-[O-(A-O)n-B]m-D, where O is a first oligomeric segment, B is a first coupling segment, A is a second coupling segment, D is a polyfluoro oligomeric group, m is from one to 20, and n is from zero to 20.
Specification