섬유

hydrogel-graft-coated plastic parts for hemodialysis

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 326
by means of active-vapor chemical grafting, hydrophilic polymer coatings were applied to surfaces of segmented polyetherurethanes these modified surfaces are shown to be non-thrombogenic when implanted in canine aortas or venae cavae, in the latter test remaining patent for longer than 30 days. procedures were worked out for fabricating ramirez winged in-line cannulae and adaptor tips from polyether-urethanes with mechanical properties similar to commercial silicone and teflon units, and coating them with poly (2-hydroxyethyl methacrylate) (phema). the non-clotting properties demonstrated in the model tests were not realized in field trials, probably because of intermixing of phema and peu and surface embrittlement of the phema
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