IN2012DN02511A - - Google Patents

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Publication number
IN2012DN02511A
IN2012DN02511A IN2511DEN2012A IN2012DN02511A IN 2012DN02511 A IN2012DN02511 A IN 2012DN02511A IN 2511DEN2012 A IN2511DEN2012 A IN 2511DEN2012A IN 2012DN02511 A IN2012DN02511 A IN 2012DN02511A
Authority
IN
India
Prior art keywords
ring units
cells
arc part
axis direction
oppositely disposed
Prior art date
Application number
Inventor
Hai Quan Feng
Suguru Kishimoto
Jun Kubota
Minoru Asahara
Original Assignee
Japan Stent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Stent Technology Co Ltd filed Critical Japan Stent Technology Co Ltd
Publication of IN2012DN02511A publication Critical patent/IN2012DN02511A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/9155—Adjacent bands being connected to each other
    • A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Prostheses (AREA)

Abstract

Provided are stents having a following configuration and improved durability under bending loads and flexibility. The stent comprises a tubular body comprising a plurality of ring units being arranged in the axis direction and bridged by a connecting element and is expandable in the radius direction from its inside. Each of the ring units comprises a plurality of cells connected with each other, each of the cells having a substantially U-shaped form comprising two substantially linear parts and a substantially circular arc part therebetween, and opening toward one end along the axis direction. The ring units comprise first and second ring units alternatively arranged and the oppositely disposed cells of the adjoining first and second ring units are only partly bridged by the connecting elements creating connection between the arc parts of the oppositely disposed cells. The shapes of the cells of the first and second ring units are axisymmetrical of the stent about the connecting element. The curvature radius of the top of the arc constituting the arc part is 1.1 and 1.5 times larger than that of each of the tangent circles formed at the edges of two substantially linear parts of the cell on the circular arc part side.
IN2511DEN2012 2009-09-17 2010-09-16 IN2012DN02511A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009215464 2009-09-17
PCT/JP2010/066100 WO2011034154A1 (en) 2009-09-17 2010-09-16 Stent

Publications (1)

Publication Number Publication Date
IN2012DN02511A true IN2012DN02511A (en) 2015-08-28

Family

ID=43758754

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2511DEN2012 IN2012DN02511A (en) 2009-09-17 2010-09-16

Country Status (6)

Country Link
US (1) US8882827B2 (en)
EP (1) EP2478876A4 (en)
JP (1) JP5684133B2 (en)
CN (1) CN102497838A (en)
IN (1) IN2012DN02511A (en)
WO (1) WO2011034154A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2779080C (en) * 2009-10-30 2018-01-16 Cordis Corporation Intraluminal device with improved flexibility and durability
US20110282428A1 (en) * 2010-05-13 2011-11-17 Boston Scientific Scimed, Inc. Biodegradable composite stent
CN102813566A (en) * 2012-04-24 2012-12-12 冯海全 Coronary stent
EP4173599A1 (en) 2012-05-14 2023-05-03 C. R. Bard, Inc. Uniformly expandable stent
USD723165S1 (en) 2013-03-12 2015-02-24 C. R. Bard, Inc. Stent
CN103462734A (en) * 2013-09-18 2013-12-25 深圳市金瑞凯利生物科技有限公司 Coronary vessel stent and manufacturing method thereof
DE102014016588A1 (en) 2014-11-11 2016-05-12 medicut Stent Technology GmbH stent graft
AU2016361380B2 (en) * 2015-11-26 2021-04-08 Japan Medical Device Technology Co., Ltd. Bioabsorbable stent
CN105902331A (en) * 2016-04-08 2016-08-31 南京永明医疗器械有限公司 Intravascular stent and preparation method thereof
EP3578142B1 (en) 2017-02-01 2022-03-23 Kake Educational Institution Okayama University Of Science Bioabsorbable stent

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03145720A (en) 1989-10-31 1991-06-20 Oki Electric Ind Co Ltd Compound semiconductor growth method and silicon substrate to be used thereon
DE29708879U1 (en) * 1997-05-20 1997-07-31 Jomed Implantate GmbH, 72414 Rangendingen Coronary stent
JP3654627B2 (en) 2000-04-20 2005-06-02 川澄化学工業株式会社 Stent
JP3663192B2 (en) 2001-10-16 2005-06-22 川澄化学工業株式会社 Stent
JP3605388B2 (en) 2001-10-16 2004-12-22 川澄化学工業株式会社 Stent
JP2005524488A (en) * 2002-05-08 2005-08-18 アボット・ラボラトリーズ Endoprosthesis with extended foot
US20060121080A1 (en) * 2002-11-13 2006-06-08 Lye Whye K Medical devices having nanoporous layers and methods for making the same
JP4797473B2 (en) * 2005-07-11 2011-10-19 ニプロ株式会社 Flexible stent with excellent expandability
DK1752113T3 (en) * 2005-08-10 2009-04-14 Axetis Ag Tubular support prosthesis with laterally overlapping curvature arches
JP5267457B2 (en) * 2007-04-12 2013-08-21 株式会社カネカ Stent
US8388673B2 (en) * 2008-05-02 2013-03-05 Abbott Cardiovascular Systems Inc. Polymeric stent
WO2009041664A1 (en) 2007-09-27 2009-04-02 Terumo Kabushiki Kaisha Stent and living organ dilator
JP5242979B2 (en) * 2007-09-27 2013-07-24 テルモ株式会社 In vivo indwelling stent and biological organ dilator
US20090105809A1 (en) * 2007-10-19 2009-04-23 Lee Michael J Implantable and lumen-supporting stents and related methods of manufacture and use
JP3145720U (en) * 2008-08-06 2008-10-16 株式会社日本ステントテクノロジー Stent
CN101357089A (en) * 2008-09-12 2009-02-04 西北有色金属研究院 A kind of manufacturing method of biodegradable magnesium alloy intravascular stent
US8372136B2 (en) * 2009-04-10 2013-02-12 Covidien Lp Implants having high fatigue resistance, implant delivery systems, and methods of use

Also Published As

Publication number Publication date
CN102497838A (en) 2012-06-13
JPWO2011034154A1 (en) 2013-02-14
EP2478876A4 (en) 2014-07-16
JP5684133B2 (en) 2015-03-11
EP2478876A1 (en) 2012-07-25
US20120172974A1 (en) 2012-07-05
US8882827B2 (en) 2014-11-11
WO2011034154A1 (en) 2011-03-24

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