Michael J. Constant,Gregory M. Cruise,E. Michael Keeley,Alejandro Berenstein
申请号：
US12890540
公开号：
US09114200B2
申请日:
2010.09.24
申请国别(地区):
US
年份:
2015
代理人:
摘要：
Described herein are apparatus, compositions, systems and associated methods to occlude structures and malformations with radiopaque hydrogel filaments with delayed controlled rates of expansion permitting the repositioning of the device once inside the structure or malformation. Further described is a device for implantation in an animal comprising a difunctional, low molecular weight ethylenically unsaturated shapeable macromer an ethylenically unsaturated monomer and a radiopaque element, wherein said device contains no support members. Methods of forming such devices are also disclosed.
