CA2030956A1 - A collapsible filter for introduction in a blood vessel of a patient - Google Patents

A collapsible filter for introduction in a blood vessel of a patient

Info

Publication number
CA2030956A1
CA2030956A1 CA002030956A CA2030956A CA2030956A1 CA 2030956 A1 CA2030956 A1 CA 2030956A1 CA 002030956 A CA002030956 A CA 002030956A CA 2030956 A CA2030956 A CA 2030956A CA 2030956 A1 CA2030956 A1 CA 2030956A1
Authority
CA
Canada
Prior art keywords
legs
introduction
patient
filter
central
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
CA002030956A
Other languages
French (fr)
Other versions
CA2030956C (en
Inventor
Erik Rasmussen
Rolf W. Gunther
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.)
William Cook Europe ApS
Original Assignee
Erik Rasmussen
Rolf W. Gunther
William Cook Europe A/S
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 Erik Rasmussen, Rolf W. Gunther, William Cook Europe A/S filed Critical Erik Rasmussen
Publication of CA2030956A1 publication Critical patent/CA2030956A1/en
Application granted granted Critical
Publication of CA2030956C publication Critical patent/CA2030956C/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
    • A61F2/01—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
    • A61F2/0105—Open ended, i.e. legs gathered only at one side
    • 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
    • A61F2230/0073—Quadric-shaped
    • A61F2230/008—Quadric-shaped paraboloidal

Abstract

In a collapsible filter for introduction into a blood vessel of a patient and of the kind comprising a number of legs (1-4) diverging from an apical hub (5) and each having a reversely turned hook (1b-4b) at its distal end with respect to said hub (5), each leg com-prises a central element (1a-4a), bent into a smooth quasi-halfsinusoidal form, and two substantially symme-trical curved side elements (1c-4c, 1d-4d) extending on either side of the central element (1a-4a). The filter may as a whole may be unfolded from a collapsed inser-tion condition in which the central and side elements of all legs (1-4) forms a narrow bundle for arrangement in a catheter like insertion instrument into a tulip like filter configuration with the side elements (1c-4c, 1d-4d) interposed between the central elements (1a-4a) of the legs.
CA002030956A 1989-11-28 1990-11-27 A collapsible filter for introduction in a blood vessel of a patient Expired - Lifetime CA2030956C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8926857A GB2238485B (en) 1989-11-28 1989-11-28 A collapsible filter for introduction in a blood vessel of a patient
GB8926857.7 1989-11-28

Publications (2)

Publication Number Publication Date
CA2030956A1 true CA2030956A1 (en) 1991-05-29
CA2030956C CA2030956C (en) 2002-02-19

Family

ID=10667034

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002030956A Expired - Lifetime CA2030956C (en) 1989-11-28 1990-11-27 A collapsible filter for introduction in a blood vessel of a patient

Country Status (9)

Country Link
US (1) US5133733A (en)
EP (1) EP0430848B1 (en)
JP (1) JP3016851B2 (en)
AT (1) ATE98856T1 (en)
AU (1) AU634312B2 (en)
CA (1) CA2030956C (en)
DE (1) DE69005424T2 (en)
DK (1) DK0430848T3 (en)
GB (1) GB2238485B (en)

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US5133733A (en) 1992-07-28
DE69005424T2 (en) 1994-06-16
AU6658990A (en) 1991-06-06
EP0430848A1 (en) 1991-06-05
CA2030956C (en) 2002-02-19
EP0430848B1 (en) 1993-12-22
JPH03210273A (en) 1991-09-13
AU634312B2 (en) 1993-02-18
GB2238485A (en) 1991-06-05
JP3016851B2 (en) 2000-03-06
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GB2238485B (en) 1993-07-14
GB8926857D0 (en) 1990-01-17

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