Embolization
AssigneeBoston Scientific Scimed, Inc., a Minnesota corporation
InventorsJanel Lanphere, Ernest J. St. Pierre, Greg Kapoglis, Thomas V. Casey, II
Life of this patent
Estimating the term…
Abstract
A composition includes a plurality of particles. At least some of the plurality of particles include cross-linked polyvinyl alcohol and have a diameter of about 500 microns or less. The particles have a first average pore size in an interior region, and a second average pore size at a surface region. The first average pore size being greater than the second average pore size. The composition also includes a carrier fluid. The plurality of particles being in the carrier fluid.
Claims21
-31. (canceled)
A particle having a diameter of about 500 microns or less, wherein the particle comprises a cross-linked polymer, the particle has a first density of pores in an interior region and a second density of pores at a surface region, and the first density is different from the second density.
A composition, comprising:
- a plurality of particles comprising a cross-linked polymer, at least some of the plurality of particles having a diameter of about 500 microns or less, wherein at least some of the particles having a diameter of about 500 microns or less have a first density of pores in an interior region and a second density of pores at a surface region, the first density being different from the second density;
- and
- a carrier fluid, the plurality of particles being in the carrier fluid.
Dependencies are inferred from the claim text.