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1. 发明申请

US20180103956A1 MEDICAL MATERIAL 审中-公开
公开(公告)号：US20180103956A1
公开(公告)日：2018-04-19
申请号：US15566500
申请日：2016-03-22
申请人： GUNZE LIMITED
发明人： Yuki SAKAMOTO , Toshiharu SHINOKA , Hirotsugu KUROBE
IPC分类号： A61B17/12 , A61L27/00 , A61B17/00
CPC分类号： A61B17/12 , A61B17/0057 , A61B2017/00004 , A61B2017/00243 , A61B2017/00575 , A61B2017/00592 , A61B2017/00606 , A61B2017/00623 , A61L27/00 , A61L2430/36
摘要： Provided is a defect hole closing material that has almost no fear of long-term failure and allows minimally invasive treatment for an atrial septal defect. The defect hole closing material is formed of two tubular bodies (a first tubular part and a second tubular par) having a stitch-like structure of a bioabsorbable material, has a sandglass shape, figure-of-eight shape, double spindle shape, or peanut shape, and includes a coil spring of which both ends are respectively engaged with a first end part and a second end part and that is passed through the insides of the first tubular part and the second tubular part from the first end part side to the second end part side via a substantially middle part. When pushing the defect hole closing material out of a catheter, the action of the coil spring causes the first tubular part and the second tubular part to come close with the substantially middle part as a center and expand tube diameters.

2. 发明申请

US20220218321A1 MEDICAL MATERIAL 有权
公开(公告)号：US20220218321A1
公开(公告)日：2022-07-14
申请号：US17610921
申请日：2020-07-07
申请人： GUNZE LIMITED
发明人： Hirotsugu KUROBE , Saki OKUMURA , Yuuki KATO , Koji YAMAUCHI
IPC分类号： A61B17/00
摘要： A hole closing material achieves less invasive treatment for atrial septal defect with no or little possibility of problems in the late post-treatment period. The hole closing material includes two tubular bodies (first tubular portion and second tubular portion) having a mesh structure formed of a bioabsorbable linear material, and includes: a proximal connecting part connected to a first end; and a distal connecting part connected to a second end and screwed to a delivery cable. The proximal connecting part and the distal connecting part are capable of selectively achieving: “locked” in which the proximal connecting part and the distal connecting part remain united; and “unlocked” in which the proximal connecting part and the distal connecting part do not remain united. The delivery cable passes through the substantially middle portion, is inserted into a hollow tube of the proximal connecting part, and passes out of the hole closing material in a direction from the second end to the first end.

3. 发明申请

US20180221132A1 ARTIFICIAL BLOOD VESSEL, METHOD FOR PRODUCING ARTIFICIAL BLOOD VESSEL, AND METHOD FOR PRODUCING POROUS TISSUE REGENERATION SUBSTRATE 审中-公开
公开(公告)号：US20180221132A1
公开(公告)日：2018-08-09
申请号：US15747815
申请日：2016-08-02
申请人： GUNZE LIMITED
发明人： Hidetaka NAKAYAMA , Kosuke SAWAI , Toshiharu SHINOKA , Shuhei TARA , Hirotsugu KUROBE
IPC分类号： A61F2/06 , A61L27/50 , A61L27/56
CPC分类号： A61F2/06 , A61L27/507 , A61L27/56 , A61L27/58 , C08J9/28 , C08J2201/0484 , C08J2201/0522 , C08J2205/022 , C08J2205/024 , C08J2205/044 , C08J2207/10 , C08J2300/16 , C08J2367/04
摘要： The present invention aims to provide a method for producing a porous tissue regeneration substrate that allows a wide choice of solvents and easy adjustment of the bulk density and pore size of the porous substrate. The present invention also aims to provide a method for producing an artificial blood vessel and an artificial blood vessel. The present invention relates a porous, tubular artificial blood vessel containing a bioabsorbable material, the artificial blood vessel including: a skin layer having a relatively small pore size as an innermost layer; and a porous layer positioned around the skin layer and having a relatively large pore size.

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