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CA2214627A1 - Expandable stent - Google Patents

Expandable stent Download PDF

Info

Publication number
CA2214627A1
CA2214627A1 CA002214627A CA2214627A CA2214627A1 CA 2214627 A1 CA2214627 A1 CA 2214627A1 CA 002214627 A CA002214627 A CA 002214627A CA 2214627 A CA2214627 A CA 2214627A CA 2214627 A1 CA2214627 A1 CA 2214627A1
Authority
CA
Canada
Prior art keywords
stent
flexure means
apex
stent defined
wall
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.)
Abandoned
Application number
CA002214627A
Other languages
French (fr)
Inventor
Donald R. Ricci
Ian M. Penn
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.)
Divysio Solutions ULC
Original Assignee
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
Priority claimed from PCT/CA1997/000151 external-priority patent/WO1997032543A1/en
Priority claimed from PCT/CA1997/000152 external-priority patent/WO1997032544A1/en
Application filed by Individual filed Critical Individual
Priority to CA002214627A priority Critical patent/CA2214627A1/en
Priority to AU89696/98A priority patent/AU8969698A/en
Priority to PCT/CA1998/000835 priority patent/WO1999011197A1/en
Publication of CA2214627A1 publication Critical patent/CA2214627A1/en
Abandoned 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
    • A61F2002/91525—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
    • 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
    • A61F2002/91575—Adjacent bands being connected to each other connected peak to trough
    • 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

An expandable stent comprising a proximal end and a distal end in communication with one another, a tubular wall disposed between the proximal end and the distal end, the tubular wall having a longitudinal axis and a poroussurface defined by a plurality intersecting members arranged to define a first repeating pattern comprised of a polygon having a pair of side walls substantially parallel to the longitudinal axis, each side wall comprising first and second flexure means of the same phase with respect to the longitudinal axis, a concaveshaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls, at least one of the first apex and the second apex being substantially flat, the stent being expandable from a first, contracted position to a second, expanded position uponthe application of a radially outward force on the stent.

Claims (19)

1. An expandable stent comprising a proximal end and a distal end in communication with one another, a tubular wall disposed between the proximal end and the distal end, the tubular wall having a longitudinal axis and a poroussurface defined by a plurality intersecting members arranged to define a first repeating pattern comprised of a polygon having a pair of side walls substantially parallel to the longitudinal axis, each side wall comprising first and second flexure means of the same phase with respect to the longitudinal axis, a concaveshaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls, at least one of the first apex and the second apex being substantially flat, the stent being expandable from a first, contracted position to a second, expanded position uponthe application of a radially outward force on the stent.
2. The stent defined in claim 1, wherein the each of the first and second flexure means comprise lateral section disposed in each longitudinal strut.
3. The stent defined in claim 2, wherein the lateral section comprises a pointed apex.
4. The stent defined in claim 2, wherein the lateral section comprises a rounded apex.
5. The stent defined in claim 2, wherein the lateral section comprises a flat apex.
6. The stent defined in claim 5, wherein the first flexure means and the second flexure means are symmetric.
7. The stent defined in claim 5, wherein the first flexure means and the second flexure means are asymmetric.
8. The stent defined in claim 7, wherein the first flexure means and the second flexure means have substantially the same shape and differing size.
9. The stent defined in claim 7, wherein the first flexure means and the second flexure means have differing shape and size.
10. The stent defined in any one of claims 6-9, wherein the first lateral section and the second lateral section have substantially the same shape and differing size.
11. The stent defined in any one of claims 1-10, wherein one or both of the first flexure means and the second flexure means comprises a curved section having an arc of greater than 180°.
12. The stent defined in any one of claims 1-10, wherein one or both of the first flexure means and the second flexure means comprises a curved section having an arc of about 180°.
13. The stent defined in any one of claims 11-12, wherein the curved sections are of substantially the same size.
14. The stent defined in any one of claims 11-12, wherein the curved sections are of different size.
15. The stent defined in any one of claims 1-14, wherein the stent is constructed of stainless steel.
16. The stent defined in any one of claims 1-14, wherein the stent is constructed of a self-expanding material.
17. The stent defined in claim 16, wherein the self-expanding material is nitinol.
18. The stent defined in claim 16, wherein the self-expanding material expands at a temperature of greater than about 30°C.
19. The stent defined in claim 16, wherein the self-expanding material expands at a temperature of in the range of from about 30° to about 40°C.
CA002214627A 1997-03-05 1997-09-04 Expandable stent Abandoned CA2214627A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002214627A CA2214627A1 (en) 1997-03-05 1997-09-04 Expandable stent
AU89696/98A AU8969698A (en) 1997-09-04 1998-09-04 Expandable stent
PCT/CA1998/000835 WO1999011197A1 (en) 1997-09-04 1998-09-04 Expandable stent

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
WOPCT/CA97/00152 1997-03-05
PCT/CA1997/000151 WO1997032543A1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
PCT/CA1997/000152 WO1997032544A1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
WOPCT/CA97/00151 1997-03-05
CA002214627A CA2214627A1 (en) 1997-03-05 1997-09-04 Expandable stent

Publications (1)

Publication Number Publication Date
CA2214627A1 true CA2214627A1 (en) 1998-09-05

Family

ID=4161399

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002214627A Abandoned CA2214627A1 (en) 1997-03-05 1997-09-04 Expandable stent

Country Status (3)

Country Link
AU (1) AU8969698A (en)
CA (1) CA2214627A1 (en)
WO (1) WO1999011197A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007099439A2 (en) 2006-03-01 2007-09-07 Medinol, Ltd. Stent with variable features to optimize support and method of making such stent
US7976576B2 (en) 1996-09-19 2011-07-12 Medinol Ltd. Stent with variable features to optimize support and method of making such stent
GB2494632A (en) * 2011-09-09 2013-03-20 Isis Innovation Stent and method of inserting a stent into a delivery catheter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1059896B1 (en) 1998-03-04 2006-05-24 Boston Scientific Limited Improved stent cell configurations
KR100360364B1 (en) * 2000-05-22 2002-11-13 주식회사 정성메디칼 A metal stent for installation in the coronary artery
KR100532631B1 (en) * 2001-01-15 2005-12-01 데루모 가부시끼 가이샤 Stent
US6786922B2 (en) 2002-10-08 2004-09-07 Cook Incorporated Stent with ring architecture and axially displaced connector segments
DE10352874B4 (en) * 2003-11-10 2008-03-27 Qualimed Innovative Medizinprodukte Gmbh stent

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733665C2 (en) 1985-11-07 2002-01-29 Expandable Grafts Partnership Expandable intraluminal graft and method and apparatus for implanting an expandable intraluminal graft
US5102417A (en) 1985-11-07 1992-04-07 Expandable Grafts Partnership Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft
US4800882A (en) 1987-03-13 1989-01-31 Cook Incorporated Endovascular stent and delivery system
US4907336A (en) 1987-03-13 1990-03-13 Cook Incorporated Method of making an endovascular stent and delivery system
US5316023A (en) 1992-01-08 1994-05-31 Expandable Grafts Partnership Method for bilateral intra-aortic bypass
US5733303A (en) * 1994-03-17 1998-03-31 Medinol Ltd. Flexible expandable stent
WO1997032544A1 (en) * 1996-03-05 1997-09-12 Divysio Solutions Ulc. Expandable stent and method for delivery of same
CA2192520A1 (en) * 1996-03-05 1997-09-05 Ian M. Penn Expandable stent and method for delivery of same
DE29702671U1 (en) * 1997-02-17 1997-04-10 Jomed Implantate GmbH, 72414 Rangendingen Stent
DE29708879U1 (en) * 1997-05-20 1997-07-31 Jomed Implantate GmbH, 72414 Rangendingen Coronary stent

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7976576B2 (en) 1996-09-19 2011-07-12 Medinol Ltd. Stent with variable features to optimize support and method of making such stent
US7998193B2 (en) 1996-09-19 2011-08-16 Medinol Ltd. Stent with variable features to optimize support and method of making such stent
WO2007099439A2 (en) 2006-03-01 2007-09-07 Medinol, Ltd. Stent with variable features to optimize support and method of making such stent
EP1993475A2 (en) * 2006-03-01 2008-11-26 Medinol Ltd. Stent with variable features to optimize support and method of making such stent
EP1993475A4 (en) * 2006-03-01 2009-11-04 Medinol Ltd Stent with variable features to optimize support and method of making such stent
GB2494632A (en) * 2011-09-09 2013-03-20 Isis Innovation Stent and method of inserting a stent into a delivery catheter
US9301861B2 (en) 2011-09-09 2016-04-05 Isis Innovation Limited Stent and method of inserting a stent into a delivery catheter
US10383749B2 (en) 2011-09-09 2019-08-20 Oxford University Innovation Limited Stent and method of inserting a stent into a delivery catheter

Also Published As

Publication number Publication date
AU8969698A (en) 1999-03-22
WO1999011197A1 (en) 1999-03-11

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued