公开(公告)号：US4958014A

公开(公告)日：1990-09-18

申请号：US230092

申请日：1988-08-09

Applicant: Junichi Shirokaze

Inventor： Junichi Shirokaze

IPC: C08J3/12 ,  C08J3/14 ,  C08J5/20 ,  C08J9/28 ,  C12M3/02

CPC classification number: C08J3/14 ,  C08J9/28 ,  C08J2201/0482 ,  C08J2201/0484 ,  C08J2201/0547 ,  C08J2301/02

Abstract: A multi-cellular cellulose particle having a multiplicity of cells spaced from one another by cell membranes is described, which cells have a maximum inscribed sphere diameter of larger than 2 .mu.m. The cells have a continuous hole structure in which the cells communicate with one another through openings in the membranes separating two adjacent cells. The multi-cellular cellulose particle is prepared by forming drops of a solution of cellulose or a cellulose derivative, cooling the drops at a temperature lower than the solidification temperature of the solution to freeze the drops, and removing the solvent by extraction or nullifying the dissolving power of the solvent.

公开(公告)号：US09243353B2

公开(公告)日：2016-01-26

申请号：US13357150

申请日：2012-01-24

Applicant: Junichi Shirokaze ,  Yasuharu Noishiki

Inventor： Junichi Shirokaze ,  Yasuharu Noishiki

IPC: A61F2/07 ,  D02G1/02 ,  D03D15/00 ,  A61L31/14 ,  A61L27/00 ,  D03D3/02

CPC classification number: D02G1/0206 ,  A61F2/07 ,  A61L27/00 ,  A61L31/146 ,  D03D1/00 ,  D03D3/02 ,  D03D15/0061 ,  D10B2401/10 ,  D10B2509/06

Abstract: Provided is a stent graft that has superior prevention of endoleakage due to being resistant to creasing, and has superior prevention of graft migration as a result of promoting cell infiltration into gaps among microfibers in a dispersed state and forming an integrated structure with the cells in the landing zone of the stent. The stent graft according to the present invention is a stent graft comprising a stent graft fabric that has microfiber bundles consisting essentially of microfilaments having a filament linear density of 0.5 dtex or less, and said microfiber bundles having a total linear density of 10 to 60 dtex/120 to 3000 filaments, for the warp and/or weft, and in which the porosity of the microfiber bundles is 30% to 95%, wherein said stent graft has said stent graft fabric being located in at least 1 cm range from the central end.

Abstract translation: 提供一种支架移植物，其具有优异的防止由于抗皱纹而引起的内漏，并且由于促进细胞渗透到分散状态的微纤维之间的间隙中而形成与该细胞的整体结构的结果，具有优异的移植移植 支架着陆区。 根据本发明的支架移植物是一种支架移植物，其包括具有基本上由细丝线密度为0.5dtex以下的微丝组成的超细纤维束的支架移植物织物，所述超细纤维束的总线密度为10〜60dtex / 120至3000根长丝，用于经纱和/或纬纱，其中微纤维束的孔隙率为30％至95％，其中所述支架移植物具有所述支架移植物织物位于距中心至少1cm的范围内 结束。