STENT

• Main Author: YOKOTA TOMOAKI
• Format: Patent
• Language: English; Japanese
• Published: 09.07.2020
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

To provide a stent that hardly produces positional displacement from an indwelling site in an organic lumen without loosing flexibility.SOLUTION: A stent 1 to be placed in an organic lumen includes a cylindrical skeleton part 11 that is formed with wires W and expandable in a radial direction almost orthogonal to an axial direction, and a membrane part 12 arranged along a peripheral surface of a first skeleton part 111 of the skeleton part. A second skeleton part 112 having no membrane part of the skeleton part has a knitted structure configured with at least one wire of the wires forming the first skeleton part, being structured expandable axially.SELECTED DRAWING: Figure 2 【課題】柔軟性を損なうことなく、生体管腔の留置部位から位置ずれし難いステントを提供する。【解決手段】ステント１は、生体管腔内に留置されるステントであって、線材Ｗにより形成され、軸方向に略直交する径方向に拡縮可能な筒形状の骨格部１１と、骨格部のうちの第１骨格部１１１の周面に沿って配置される皮膜部１２と、を備える。骨格部のうちの皮膜部が配置されていない第２骨格部１１２は、第１骨格部を形成する線材のうちの少なくとも一本の線材からなる編込み構造を有し、軸方向に伸縮可能に構成されている。【選択図】図２