CA2527577C - Longitudinally elongating balloon expandable stent - Google Patents

Longitudinally elongating balloon expandable stent Download PDF

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Publication number
CA2527577C
CA2527577C CA002527577A CA2527577A CA2527577C CA 2527577 C CA2527577 C CA 2527577C CA 002527577 A CA002527577 A CA 002527577A CA 2527577 A CA2527577 A CA 2527577A CA 2527577 C CA2527577 C CA 2527577C
Authority
CA
Canada
Prior art keywords
stent
diagonal struts
circumferential
circumferential arcs
deployed
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.)
Expired - Lifetime
Application number
CA002527577A
Other languages
French (fr)
Other versions
CA2527577A1 (en
Inventor
Robert E. Fischell
David R. Fischell
Tim A. Fischell
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.)
Cordis Corp
Original Assignee
Cordis Corp
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 Cordis Corp filed Critical Cordis Corp
Priority claimed from CA002210516A external-priority patent/CA2210516C/en
Publication of CA2527577A1 publication Critical patent/CA2527577A1/en
Application granted granted Critical
Publication of CA2527577C publication Critical patent/CA2527577C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61F2002/9155—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
    • 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
    • A61F2002/91566—Adjacent bands being connected to each other connected trough to trough

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

A cylindrical stent (10) for placement in a vessel of a human body. The stent has a longitudinal axis and in its formation includes circumferential arcs (12) and diagonal struts (14) having an intersection angle between the circumferential arcs (12) and the diagonal struts (14) within the range of 10 to 80 degrees when the stent (10) is in its non-deployed state. The diagonal struts (14) are joined by curved sections (18) to the circumferential arcs (12) which collectively form a closed perimeter cell. The closed perimeter cell has two parallel, circumferential arcs (12) located at the longitudinal extremeties of the closed perimeter cell and the circumferential arcs (12) lie generally perpendicular to the stent's longitudinal axis where the stent (10) may be deployed in a manner so that although the length of the stent (10) increases during deployment, at the nominal fully deployed diameter, the deployed stent (10) is substantially the same length as the non-deployed length.

Claims (4)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A stent in the form of a thin-walled cylinder having a longitudinal axis, the stent leaving a multiplicity of hexagonal cells that form a honeycomb type cylindrical structure, each of said hexagonal cells having at least two diagonal struts, each side of each hexagonal cell being approximately equal in length to every other side and each hexagonal cell having a first circumferential arc located at one longitudinal extremity of the hexagonal cell and a second circumferential arc located at the opposite longitudinal extremity of the hexagonal cell, the first and second circumferential arcs being generally parallel to each other and each circumferential arc lying generally perpendicular to the stent's longitudinal axis, each of said circumferential arcs having a width greater than the width of the diagonal struts.
2. The stem of claim 1 wherein the stent has curved sections that join the circumferential arcs to the diagonal struts.
3. The stent of claim 2 wherein the curved sections have a narrower width as compared to the diagonal struts.
4. The stent of claim 1 wherein the stent includes a radioisotope material to prevent neointimal hyperpiasia subsequent to balloon angioplasty.
CA002527577A 1997-07-15 1997-07-15 Longitudinally elongating balloon expandable stent Expired - Lifetime CA2527577C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002210516A CA2210516C (en) 1996-02-21 1997-07-15 Longitudinally elongating balloon expandable stent

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002210516A Division CA2210516C (en) 1996-02-21 1997-07-15 Longitudinally elongating balloon expandable stent

Publications (2)

Publication Number Publication Date
CA2527577A1 CA2527577A1 (en) 1999-01-15
CA2527577C true CA2527577C (en) 2007-01-02

Family

ID=35767592

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002527577A Expired - Lifetime CA2527577C (en) 1997-07-15 1997-07-15 Longitudinally elongating balloon expandable stent

Country Status (1)

Country Link
CA (1) CA2527577C (en)

Also Published As

Publication number Publication date
CA2527577A1 (en) 1999-01-15

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MKEX Expiry

Effective date: 20170717