CA2261120A1 - Removable embolus blood clot filter - Google Patents

Removable embolus blood clot filter

Info

Publication number
CA2261120A1
CA2261120A1 CA002261120A CA2261120A CA2261120A1 CA 2261120 A1 CA2261120 A1 CA 2261120A1 CA 002261120 A CA002261120 A CA 002261120A CA 2261120 A CA2261120 A CA 2261120A CA 2261120 A1 CA2261120 A1 CA 2261120A1
Authority
CA
Canada
Prior art keywords
filter
longitudinal axis
expanded configuration
blood clot
spaced
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
CA002261120A
Other languages
French (fr)
Other versions
CA2261120C (en
Inventor
Morris Simon
Stephen J. Kleshinski
Thomas F. Kinst
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.)
CR Bard Inc
Original Assignee
Nitinol Medical Technologies, Inc.
Morris Simon
Stephen J. Kleshinski
Thomas F. Kinst
Nmt Medical, Inc.
C.R. Bard, 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 Nitinol Medical Technologies, Inc., Morris Simon, Stephen J. Kleshinski, Thomas F. Kinst, Nmt Medical, Inc., C.R. Bard, Inc. filed Critical Nitinol Medical Technologies, Inc.
Priority to CA002575865A priority Critical patent/CA2575865C/en
Publication of CA2261120A1 publication Critical patent/CA2261120A1/en
Application granted granted Critical
Publication of CA2261120C publication Critical patent/CA2261120C/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
    • A61F2/01—Filters implantable into blood vessels
    • 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/011—Instruments for their placement or removal
    • 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2002/016—Filters implantable into blood vessels made from wire-like elements
    • 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
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/005—Rosette-shaped, e.g. star-shaped
    • 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
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0067—Three-dimensional shapes conical
    • 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
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0073—Quadric-shaped
    • A61F2230/008—Quadric-shaped paraboloidal

Abstract

A blood clot filter (10, 36) which is collapsible toward a central longitudinal axis into a collapsed configuration for insertion into a blood vessel (22) and which is radially expandable outwardly from the longitudinal axis to an expanded configuration for contact with the inner wall of the blood vessel at two longitudinally spaced locations. A first plurality of spaced, elongate arms (18, 38), in the expanded configuration of the filter, curve outwardly away from the longitudinal axis toward the trailing end of the filter to form a first filter basket (14, 40). These arms (18, 38) prevent movement of the filter in a first longitudinal direction. A
second plurality of spaced elongate legs (24, 46) angle outwardly away from the longitudinal axis toward the leading edge of the filter in the expanded configuration thereof. These second legs (24, 46) form a second filter basket (40) opening toward the leading end and prevent logitudinal movement of the filter in a second direction opposite to the first direction.
CA002261120A 1996-07-17 1997-07-16 Removable embolus blood clot filter Expired - Fee Related CA2261120C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002575865A CA2575865C (en) 1996-07-17 1997-07-16 Removable embolus blood clot filter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/682,192 US5669933A (en) 1996-07-17 1996-07-17 Removable embolus blood clot filter
US08/682,192 1996-07-17
PCT/US1997/011732 WO1998002203A1 (en) 1996-07-17 1997-07-16 Removable embolus blood clot filter

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002575865A Division CA2575865C (en) 1996-07-17 1997-07-16 Removable embolus blood clot filter

Publications (2)

Publication Number Publication Date
CA2261120A1 true CA2261120A1 (en) 1998-01-22
CA2261120C CA2261120C (en) 2008-12-30

Family

ID=24738621

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002261120A Expired - Fee Related CA2261120C (en) 1996-07-17 1997-07-16 Removable embolus blood clot filter

Country Status (8)

Country Link
US (2) US5669933A (en)
EP (3) EP2308421A1 (en)
AT (1) ATE285814T1 (en)
AU (1) AU3652097A (en)
CA (1) CA2261120C (en)
DE (1) DE69732116T2 (en)
ES (1) ES2235244T3 (en)
WO (1) WO1998002203A1 (en)

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WO1998002203A1 (en) 1998-01-22
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DE69732116D1 (en) 2005-02-03
US5836968A (en) 1998-11-17
US5669933A (en) 1997-09-23
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CA2261120C (en) 2008-12-30
EP0921837B1 (en) 2004-12-29
EP1582177A2 (en) 2005-10-05
EP2308421A1 (en) 2011-04-13
EP0921837A1 (en) 1999-06-16
AU3652097A (en) 1998-02-09
DE69732116T2 (en) 2005-12-08
ATE285814T1 (en) 2005-01-15

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