| 摘要 |
The compositions described herein include a first polymer that is either a polyvinyl alcohol or a polyvinyl formal, and a second polymer that is one of a polyvinyl alcohol, a polyvinyl formal, polyvinylpyrrolidone, a polysaccharide, or a polymethacrylate. The first polymer and the second polymer in the composition are different. These compositions are useful in the formation of particles, such as embolic particles, or other medical devices. The compositions are also useful in the delivery of therapeutic agents. Different ratios of the first polymer to the second polymer can provide different rates of release of the therapeutic agent from the composition.
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