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US 10,118,980 B1Granted
Polymer particles
AssigneeTerumo Kabushiki Kaisha
InventorsSteve Plotkin, Gregory M. Cruise, Edward Michael Keeley, Renee Yu, Clayton Harris
Life of this patent
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Abstract
Polymer particle embolics and methods of making same are described. The particle embolics can be used as embolization agents.
Claims20
A polymer particle comprising:
- at least one derivatized poly(ethylene glycol) macromer, poly(propylene glycol) macromer, poly(tetramethylene oxide) macromer, or a combination thereof at a concentration of between about 15% w/w and about 50% w/w;
- and
- at least one monomer including glycerol monomethacrylate, amino ethyl methacrylate, 3-sulfopropyl acrylate, amino propyl methacrylamide, or a combination thereof, wherein the monomer is not n-isopropyl acrylamide,
- wherein the polymer particle is spherical and has a diameter less than about 1,200 μm.
1 more element
A polymer particle comprising:
- at least one derivatized poly(ethylene glycol) macromer, poly(propylene glycol) macromer, poly(tetramethylene oxide) macromer, or a combination thereof at a concentration of between about 15% w/w and about 50% w/w, wherein the at least one derivatized poly(ethylene glycol) macromer is poly(ethylene glycol) diacrylamide, poly(ethylene glycol) diacrylate, poly(ethylene glycol) dimethacrylate, poly(ethylene glycol) dimethacrylamide, or a combination thereof;
- and
- at least one monomer that is not n-isopropyl acrylamide,
- wherein the polymer particle is spherical and has a diameter less than about 1,200 μm.
1 more element
Dependencies are inferred from the claim text.