CA2119814A1 - Recoverable Thrombosis Filter - Google Patents

Recoverable Thrombosis Filter

Info

Publication number
CA2119814A1
CA2119814A1 CA2119814A CA2119814A CA2119814A1 CA 2119814 A1 CA2119814 A1 CA 2119814A1 CA 2119814 A CA2119814 A CA 2119814A CA 2119814 A CA2119814 A CA 2119814A CA 2119814 A1 CA2119814 A1 CA 2119814A1
Authority
CA
Canada
Prior art keywords
vein wall
thrombosis filter
filter
recoverable
filtering
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
CA2119814A
Other languages
French (fr)
Other versions
CA2119814C (en
Inventor
Toshiyuki Irie
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 Scimed Inc
Original Assignee
Toshiyuki Irie
Scimed Life Systems, 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 Toshiyuki Irie, Scimed Life Systems, Inc. filed Critical Toshiyuki Irie
Publication of CA2119814A1 publication Critical patent/CA2119814A1/en
Application granted granted Critical
Publication of CA2119814C publication Critical patent/CA2119814C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/01Filters implantable into blood vessels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/01Filters implantable into blood vessels
    • A61F2/011Instruments for their placement or removal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/01Filters implantable into blood vessels
    • A61F2002/016Filters implantable into blood vessels made from wire-like elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028Shapes in the form of latin or greek characters
    • A61F2230/005Rosette-shaped, e.g. star-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0067Three-dimensional shapes conical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0073Quadric-shaped
    • A61F2230/008Quadric-shaped paraboloidal

Abstract

A thrombosis filter that has an improved filtering function and can be securely anchored at a desired location and be removed through an endovenous route even after the growth of neointima. The thrombosis filter of this invention includes a first and a second filtering and holding unit, each unit including a coupling mechanism at its outer extremity in the form of a hook, and a plurality of resilient struts which include vein wall junction portions that lie parallel to the vein wall and are biased into contact therewith. The preferred embodiment includes picks that impale the vein wall to a limited depth.
The units are interconnected by a core shaft which consists of a compression member and a pair of core wires.
CA002119814A 1993-03-26 1994-03-24 Recoverable thrombosis filter Expired - Fee Related CA2119814C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/042,424 1993-03-26
US08/042,424 US5370657A (en) 1993-03-26 1993-03-26 Recoverable thrombosis filter

Publications (2)

Publication Number Publication Date
CA2119814A1 true CA2119814A1 (en) 1994-09-27
CA2119814C CA2119814C (en) 1999-02-09

Family

ID=21921861

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002119814A Expired - Fee Related CA2119814C (en) 1993-03-26 1994-03-24 Recoverable thrombosis filter

Country Status (5)

Country Link
US (2) US5626605A (en)
CA (1) CA2119814C (en)
DE (1) DE4410256A1 (en)
FR (1) FR2702953B1 (en)
GB (1) GB2276325B (en)

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US5370657A (en) 1994-12-06
GB9404772D0 (en) 1994-04-27
CA2119814C (en) 1999-02-09
FR2702953A1 (en) 1994-09-30
US5626605A (en) 1997-05-06
GB2276325A (en) 1994-09-28
GB2276325B (en) 1996-11-13
FR2702953B1 (en) 1997-07-04
DE4410256A1 (en) 1994-09-29

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