CA2446863A1 - Stent design - Google Patents

Stent design Download PDF

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Publication number
CA2446863A1
CA2446863A1 CA002446863A CA2446863A CA2446863A1 CA 2446863 A1 CA2446863 A1 CA 2446863A1 CA 002446863 A CA002446863 A CA 002446863A CA 2446863 A CA2446863 A CA 2446863A CA 2446863 A1 CA2446863 A1 CA 2446863A1
Authority
CA
Canada
Prior art keywords
stent
shaped cells
interconnected
shaped
bands
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002446863A
Other languages
French (fr)
Other versions
CA2446863C (en
Inventor
Burns P. Doran
Graig L. Kveen
Timothy J. Ley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boston Scientific Ltd Barbados
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Individual
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 Individual filed Critical Individual
Publication of CA2446863A1 publication Critical patent/CA2446863A1/en
Application granted granted Critical
Publication of CA2446863C publication Critical patent/CA2446863C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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 sheet material 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 sheet material 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 sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • 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 sheet material 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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91508—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other the meander having a difference in amplitude along the band
    • 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 sheet material 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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91516—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other the meander having a change in frequency along the band
    • 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 sheet material 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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91525—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
    • 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 sheet material 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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91533—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
    • A61F2002/91541—Adjacent bands are arranged out of phase
    • 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 sheet material 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 sheet material 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

Abstract

A stent (100) comprises at least one band (126) of interconnected cells (106, 108) selected from the group consisting of S-shaped cells (106) and mirror image S-shaped (108) cells. Each cell has a top end (110) and a bottom end.
The top end (110) of each cell is attached to the bottom end (112) of an adjacent cell in the band (126). Adjacent bands may abut one another or may be joined by connecting members (132, 144).

Claims (24)

1.A stent comprising at least one band of interconnected cells selected from the group consisting of circumferentially oriented S-shaped cells and circumferentially oriented mirror image S-shaped cells, each cell having a top end and a bottom end, the top end of each cell attached to the bottom end of an adjacent cell in the band.
2. The stent of claim 1 comprising a plurality of interconnected bands of interconnected S-shaped cells.
3.The stent of claim 2 further comprising a plurality of bands of interconnected mirror image S-shaped cells.
4.The stent of claim 3 wherein the bands of interconnected S-shape cells alternate with the bands of interconnected mirror image S-shaped cells over the length of the stent.
5.The stent of claim 4 wherein adjacent bands of interconnected S-shaped cells and interconnected mirror image S-shaped cells abut one another.
6. The stent of claim 3 consisting only of bands of interconnected S-shaped cells and bands of interconnected mirror image S-shaped cells.
7.The stent of claim 4 wherein adjacent bands of interconnected S-shaped cells and interconnected mirror image S-shaped cells have connecting members extending therebetween.
8.The stent of claim 7 wherein the connecting members have at least one bend therein.
9.The stent of claim 4 wherein adjacent bands of interconnected S-shaped cells and interconnected mirror image S-shaped cells have first connecting members of a first length and second connecting members of a second length different from the first length extending therebetween.
10 10.The stent of claim 9 wherein each first connecting member is connected to an adjacent second connecting member.
11.The stent of claim 4 wherein adjacent bands of interconnected S-shaped cells and bands of interconnected mirror image S-shaped cells have bands of differently shaped cells therebetween, the differently shaped cells differing in shape from the S-shaped cells and from the mirror image S-shaped cells.
12.The stent of claim 11 wherein the differently shaped cells are in the shape of an arrow.
13.The stent of claim 12 wherein the arrows are oriented in a circumferential direction.
14. The stent of claim 13 wherein adjacent bands of differently shaped cells are oriented in opposing circumferential directions.
15.A stent comprising at least one cell selected from the group consisting of circumferentially oriented S-shaped cells and circumferentially oriented mirror image S-shaped cells.
16.A stent comprising at least one band, the band formed of a plurality of substantially X-shaped members, each X-shaped member having a proximal end and a distal end, adjacent X-shaped members joined together at the distal end by a first loop member extending therebetween and at the proximal end by a second loop member extending therebetween.
17.The stent of claim 16 wherein the first loop member and the second loop member are non-parallel to the longitudinal axis of the stent.
18.The stent of claim 16 wherein the first loop member includes a loop oriented substantially in the proximal direction and a second loop oriented substantially in the distal direction and the second loop member includes a loop oriented substantially in the proximal direction and a second loop oriented substantially in the distal direction.
19.The stent of claim 16 wherein each X-shaped member includes a first arm of a first length and a second arm of a second length different from the first length, the first and second arms extending in a distal direction and a third arm of a third length and a fourth arm of a fourth length different from the third length, the third and fourth arms extending in a proximal direction.
20.The stent of claim 16 comprising a plurality of connected bands formed of a plurality of substantially X-shaped members.
21.The stent of claim 20 wherein adjacent bands formed of a plurality of substantially X-shaped members abut one another.
22.The stent of claim 20 wherein adjacent bands formed of a plurality of substantially X-shaped members are joined by connecting members extending therebetween.
23.The stent of claim 22 wherein adjacent bands formed of a plurality of substantially X-shaped members are joined by first connecting members of a first length and second connecting members of a second length extending therebetween, the second length different from the first length.
24.A stent comprising at least cell, the cell consisting of a first inwardly pointing finger and a second inwardly pointing finger, the first inwardly pointing finger opening in a proximal direction and having a closed portion at a distal end, the second inwardly pointing finger opening in a distal direction and having a closed portion at a proximal end, the closed portion of the second inwardly pointing finger located proximal of the closed portion of the second inwardly pointing finger.
CA002446863A 2001-04-06 2002-04-03 Stent design Expired - Fee Related CA2446863C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/681,447 2001-04-06
US09/681,447 US6602283B2 (en) 2001-04-06 2001-04-06 Stent design
PCT/US2002/010511 WO2002080814A2 (en) 2001-04-06 2002-04-03 Stent design

Publications (2)

Publication Number Publication Date
CA2446863A1 true CA2446863A1 (en) 2002-10-17
CA2446863C CA2446863C (en) 2010-02-02

Family

ID=24735312

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002446863A Expired - Fee Related CA2446863C (en) 2001-04-06 2002-04-03 Stent design

Country Status (8)

Country Link
US (2) US6602283B2 (en)
EP (1) EP1372535B1 (en)
JP (2) JP2004526515A (en)
AT (1) ATE380002T1 (en)
AU (1) AU2002252586A1 (en)
CA (1) CA2446863C (en)
DE (1) DE60223911T2 (en)
WO (1) WO2002080814A2 (en)

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US20020147493A1 (en) 2002-10-10
EP1372535B1 (en) 2007-12-05
EP1372535A2 (en) 2004-01-02
JP2007222677A (en) 2007-09-06
US20030225452A1 (en) 2003-12-04
WO2002080814A3 (en) 2003-05-15
US7637936B2 (en) 2009-12-29
DE60223911T2 (en) 2008-04-03
JP2004526515A (en) 2004-09-02
US6602283B2 (en) 2003-08-05
ATE380002T1 (en) 2007-12-15
CA2446863C (en) 2010-02-02
DE60223911D1 (en) 2008-01-17
WO2002080814A2 (en) 2002-10-17
JP4846661B2 (en) 2011-12-28
AU2002252586A1 (en) 2002-10-21

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