CA2486140C - Expandable stent having removable slat members - Google Patents

Expandable stent having removable slat members Download PDF

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Publication number
CA2486140C
CA2486140C CA2486140A CA2486140A CA2486140C CA 2486140 C CA2486140 C CA 2486140C CA 2486140 A CA2486140 A CA 2486140A CA 2486140 A CA2486140 A CA 2486140A CA 2486140 C CA2486140 C CA 2486140C
Authority
CA
Canada
Prior art keywords
medical device
tubular member
removable slat
tethers
members
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 - Fee Related
Application number
CA2486140A
Other languages
French (fr)
Other versions
CA2486140A1 (en
Inventor
Mark L. Pomeranz
Esteban Pino
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.)
Codman and Shurtleff Inc
Original Assignee
Cordis Neurovascular 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 Cordis Neurovascular Inc filed Critical Cordis Neurovascular Inc
Publication of CA2486140A1 publication Critical patent/CA2486140A1/en
Application granted granted Critical
Publication of CA2486140C publication Critical patent/CA2486140C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • 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
    • A61F2/852—Two or more distinct overlapping stents
    • 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
    • A61F2/856—Single tubular stent with a side portal passage
    • 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
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A61F2002/075—Stent-grafts the stent being loosely attached to the graft material, e.g. by stitching
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0059—Additional features; Implant or prostheses properties not otherwise provided for temporary
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/006—Additional features; Implant or prostheses properties not otherwise provided for modular
    • A61F2250/0063—Nested prosthetic parts

Landscapes

  • Health & Medical Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A medical device having an outer and an inner expandable stent in which the inner expandable stent is coaxially disposed within the outer expandable stent. The medical device further includes three removable slat members carried by the outer stent and three removable slat members carried by the inner expandable stent. The removable slat members provide a substantially continuous cover for the medical device and thus impede the flow of blood through the walls of the medical device. When deployed within a blood vessel, some of the slat members serve to cover an aneurysm and restrict the blood flow into the aneurysm; however, one or more of the slat members may be selectively removed to provide blood flow into a branching blood vessel.

Claims (14)

1. A medical device comprising:

an expandable stent which takes the form of a hollow tubular member comprised of an expandable wire frame having a peripheral surface; and, an elongated removable slat member carried by said hollow tubular member and providing a cover for a portion of the peripheral surface of said hollow tubular member;
characterised in that the device additionally includes a tether attached to said removable slat member so that said tether may be pulled to remove said slat member from said hollow tubular member.
2. A medical device as defined in Claim 1, wherein said tether is removably attached to said removable slat member.
3. A medical device as defined in Claim 1, wherein said tether is comprised of a bioabsorbable material.
4. A medical device as defined in Claim 1, including a plurality of removable slat members carried by said hollow tubular member to thereby provide a cover for a portion of the peripheral surface of said hollow tubular member.
5. A medical device as defined in Claim 4, including a plurality of tethers each attached to one of said plurality of removable slat members in order to selectively remove any one of said plurality of removable slat members.
6. A medical device as defined in Claim 5, wherein said plurality of tethers are removably attached to said removable slat members.
7. A medical device as defined in Claim 5, wherein said tethers takes the form of an elongated puller wire.
8. A medical device as defined in Claim 5, wherein said tethers are comprised of a bioabsorbable material.
9. A medical device according to claim 1:

wherein the hollow tubular member is a small diameter skeletal tubular member having a thin wall, said wall of said skeletal tubular member including a plurality of cells which are formed by a plurality of interconnected strut members; and, said elongated removable slat member is interwoven between at least two of said plurality of strut members to temporarily attach said removable slat member to said skeletal tubular member to thereby provide said cover for a portion of the wall of said skeletal tubular member.
10. A medical device as defined in Claim 9, including a plurality of elongated removable slat members interwoven between said plurality of strut members to temporarily attach said plurality of removable slat members to said skeletal tubular member and to thereby provide a cover for a portion of the wall of said skeletal tubular member.
11. A medical device as defined in Claim 10, including a plurality of tethers each attached to one of said plurality of removable slat members in order to selectively remove any one of said removable slat members to thereby provide a selective passage for blood flow through a portion of the wall of said skeletal tubular member.
12. A medical device as defined in Claim 11, wherein said tethers are removably attached to the removable slat members.
13. A medical device as defined in Claim 11, wherein said tethers take the form of elongated puller wires.
14. A medical device as defined in Claim 11, wherein said tethers are comprised of a bioabsorbable material.
CA2486140A 2003-10-29 2004-10-28 Expandable stent having removable slat members Expired - Fee Related CA2486140C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/696,667 US20050096725A1 (en) 2003-10-29 2003-10-29 Expandable stent having removable slat members
US10/696,667 2003-10-29

Publications (2)

Publication Number Publication Date
CA2486140A1 CA2486140A1 (en) 2005-04-29
CA2486140C true CA2486140C (en) 2012-09-11

Family

ID=34522907

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2486140A Expired - Fee Related CA2486140C (en) 2003-10-29 2004-10-28 Expandable stent having removable slat members

Country Status (4)

Country Link
US (2) US20050096725A1 (en)
EP (1) EP1595514B1 (en)
JP (1) JP4545549B2 (en)
CA (1) CA2486140C (en)

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EP1595514A3 (en) 2006-04-12
JP4545549B2 (en) 2010-09-15
CA2486140A1 (en) 2005-04-29
EP1595514B1 (en) 2012-03-21
US20080091260A1 (en) 2008-04-17
JP2005131405A (en) 2005-05-26
US20050096725A1 (en) 2005-05-05
EP1595514A2 (en) 2005-11-16
US7611530B2 (en) 2009-11-03

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