WO1999015108A3 - Radially expandable stent - Google Patents

Radially expandable stent Download PDF

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Publication number
WO1999015108A3
WO1999015108A3 PCT/US1998/019990 US9819990W WO9915108A3 WO 1999015108 A3 WO1999015108 A3 WO 1999015108A3 US 9819990 W US9819990 W US 9819990W WO 9915108 A3 WO9915108 A3 WO 9915108A3
Authority
WO
WIPO (PCT)
Prior art keywords
longitudinal
segment
stent
interconnection
struts
Prior art date
Application number
PCT/US1998/019990
Other languages
French (fr)
Other versions
WO1999015108A2 (en
Inventor
Dale T Berry
Coy M Herald
Brian L Bates
Scott E Boatman
Michael C Hoffa
Neal E Fearnot
William D Voorhees Iii
Original Assignee
Med Inst Inc
Cook Inc
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 Med Inst Inc, Cook Inc filed Critical Med Inst Inc
Priority to JP2000512485A priority Critical patent/JP4292710B2/en
Priority to AU96649/98A priority patent/AU738502B2/en
Priority to EP98950663A priority patent/EP1017336B1/en
Priority to KR1020007003171A priority patent/KR20010082497A/en
Priority to DE69838256T priority patent/DE69838256T2/en
Publication of WO1999015108A2 publication Critical patent/WO1999015108A2/en
Publication of WO1999015108A3 publication Critical patent/WO1999015108A3/en

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    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Abstract

A radially expandable stent (10) made from a cannula or sheet of biocompatible material that includes at least one longitudinal segment (14) comprised of a series of laterally interconnected closed cells (13). Each closed cell of a longitudinal segment is defined laterally by a pair of longitudinal struts (15, 16) that are interconnected at each end by a circumferentially adjustable member (19, 20). When the stent is expanded using a balloon (47), the opposing circumferentially adjustable members deform to allow circumferential expansion of the longitudinal segment, while the length of the segment, as defined by the longitudinal struts, is maintained. Self-expanding versions of the stent utilize a nickel-titanium alloy. Adjacent longitudinal segments are joined by flexible interconnection segments (21) that permit the stent to bend laterally. The flexible interconnection segment is comprised of curvvilinear struts (22, 23) that form a series of serpentine bends (81) that distribute lateral bending forces. In a preferred embodiment, a short strut interconnects a longitudinal segment and adjacent interconnection segment. Each interconnection strut attaches to the longitudinal segment within a region (27) at the end (17) of a longitudinal strut (15) dividing two adjacent closed cells.
PCT/US1998/019990 1997-09-24 1998-09-24 Radially expandable stent WO1999015108A2 (en)

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JP2000512485A JP4292710B2 (en) 1997-09-24 1998-09-24 Radially expandable stent
AU96649/98A AU738502B2 (en) 1997-09-24 1998-09-24 Radially expandable stent
EP98950663A EP1017336B1 (en) 1997-09-24 1998-09-24 Radially expandable stent
KR1020007003171A KR20010082497A (en) 1997-09-24 1998-09-24 Radially expandable stent
DE69838256T DE69838256T2 (en) 1997-09-24 1998-09-24 RADIAL EXPANDABLE STENT

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US5989897P 1997-09-24 1997-09-24
US8216498P 1998-04-17 1998-04-17
US60/059,898 1998-04-17
US60/082,164 1998-04-17

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KR (1) KR20010082497A (en)
AU (1) AU738502B2 (en)
DE (1) DE69838256T2 (en)
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US6231598B1 (en) 2001-05-15
EP1017336B1 (en) 2007-08-15
AU9664998A (en) 1999-04-12
EP1017336A2 (en) 2000-07-12
KR20010082497A (en) 2001-08-30
ES2290995T3 (en) 2008-02-16
US20010027339A1 (en) 2001-10-04
DE69838256T2 (en) 2008-05-15
AU738502B2 (en) 2001-09-20
US6464720B2 (en) 2002-10-15
WO1999015108A2 (en) 1999-04-01
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JP4292710B2 (en) 2009-07-08
DE69838256D1 (en) 2007-09-27

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