公开(公告)号：US09913934B2

公开(公告)日：2018-03-13

申请号：US14916687

申请日：2014-09-08

Applicant: PolyOne Corporation

Inventor： Jack Frautschi ,  Jing Liu ,  Jiannong Xu

IPC: A61L29/18 ,  G21F1/10 ,  C08K3/30 ,  C08L75/04 ,  C09J175/04 ,  A61L29/02 ,  A61L29/06 ,  C08K5/00 ,  C08G101/00

CPC classification number: A61L29/18 ,  A61L29/02 ,  A61L29/06 ,  A61L2400/12 ,  C08G2101/00 ,  C08K3/30 ,  C08K5/0008 ,  C08K2201/011 ,  C08L75/04 ,  C09J175/04 ,  G21F1/10

Abstract: A radiopaque, optically translucent thermoplastic polyurethane compound is disclosed. The use of nano-sized particles of barium sulfate optionally in combination with a minor amount of certain dispersion aids allows the barium sulfate to be sufficiently dispersed within the thermoplastic polyurethane to retain optical translucency according to a defined Haze Determination Test. Medical devices, needing both visual spectrum observation before and during in-vivo medical use and radiopacity monitoring during in-vivo medical use, benefit from this compound. Optionally, a surface enhancer can also be used.