CA2613161A1 - Guidewire filter and methods of use - Google Patents

Guidewire filter and methods of use Download PDF

Info

Publication number
CA2613161A1
CA2613161A1 CA002613161A CA2613161A CA2613161A1 CA 2613161 A1 CA2613161 A1 CA 2613161A1 CA 002613161 A CA002613161 A CA 002613161A CA 2613161 A CA2613161 A CA 2613161A CA 2613161 A1 CA2613161 A1 CA 2613161A1
Authority
CA
Canada
Prior art keywords
filter
guidewire
stop
advancing mechanism
distal
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
CA002613161A
Other languages
French (fr)
Other versions
CA2613161C (en
Inventor
Ross S. Tsugita
Jean Chang
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 Ltd Barbados
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2613161A1 publication Critical patent/CA2613161A1/en
Application granted granted Critical
Publication of CA2613161C publication Critical patent/CA2613161C/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
    • A61F2/0108Both ends closed, i.e. legs gathered at both ends
    • 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
    • A61F2/013Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
    • A61F2002/015Stop means therefor
    • 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
    • A61F2002/018Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
    • 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
    • A61F2230/0004Rounded shapes, e.g. with rounded corners
    • A61F2230/0006Rounded shapes, e.g. with rounded corners circular
    • 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 filter system for temporary placement of a filter in an artery or vein is disclosed. The filter system includes a guidewire that is first positioned across a lesion within a vessel. The guidewire may include a distal stop. A slideable filter is then advanced along the guidewire using an advancing mechanism, typically an elongate member slideable over the guidewire and contacting the filter. A capture sheath may be disposed about the filter during advancement. Once the filter is positioned downstream of the lesion, the capture sheath is withdrawn, allowing the filter to expand. Further distal advancement of the filter is prohibited by the stop.
After expansion of the filter, the capture sheath and the advancing mechanism are withdrawn from the region of interest, and removed from the patient's vessel. The filter may then be retrieved using a capture sheath or exchanged for a second filter after removing the first filter.

Claims (9)

1. A filter system, comprising:
a guidewire;

an advancing mechanism having a distal region, the advancing mechanism adapted to operate with the guidewire; and a filter releasably attached to the distal region of the advancing mechanism, the filter being attached to the advancing mechanism through a releasable interlock and being adapted to slideably engage the guidewire, wherein the releasable interlock is a magnetic interlock, wherein the guidewire has a distal stop adapted to engage the filter and prevent further distal movement of the filter relative to the guidewire, further comprising a proximal stop adapted to slide along the guidewire and to lock at a region of interest, wherein the proximal stop is adapted to engage the filter and prevent the filter from passing the stop in a proximal direction, and wherein the proximal stop comprises first and second tubes connected by a biasing element that causes the tubes to be non-coaxial.
2. The filter system of claim 1, wherein the first and second tubes are held coaxial by a sheath surrounding the tubes and exerting a force against the biasing element.
3. A filter system, comprising:
a guidewire;

an advancing mechanism having a distal region, the advancing mechanism adapted to operate with the guidewire; and a filter releasably attached to the distal region of the advancing mechanism, the filter being attached to the advancing mechanism through a releasable interlock and being adapted to slideably engage the guidewire, wherein the releasable interlock is a magnetic interlock, wherein the guidewire has a distal stop adapted to engage the filter and prevent further distal movement of the filter relative to the guidewire, further comprising a proximal stop adapted to slide along the guidewire and to lock at a region of interest, wherein the proximal stop is adapted to engage the filter and prevent the filter from passing the stop in a proximal direction, wherein the proximal stop comprises a pivoting element that slides while aligned with the guidewire and pivots out of alignment when engaged by the filter.
4. The filter system of claim 3, wherein the pivoting stop is a slip stop.
5. A filter system, comprising a guidewire;

an advancing mechanism having a distal region, the advancing mechanism adapted to operate with the guidewire; and a filter releasably attached to the distal region of the advancing mechanism, the filter being attached to the advancing mechanism through a releasable interlock and being adapted to slideably engage the guidewire, wherein the releasable interlock is a magnetic interlock, wherein the guidewire has a distal stop adapted to engage the filter and prevent further distal movement of the filter relative to the guidewire, further comprising a proximal stop adapted to slide along the guidewire and to lock at a region of interest, wherein the proximal stop is adapted to engage the filter and prevent the filter from passing the stop in a proximal direction, wherein the proximal stop is carried within the filter.
6. A filter system, comprising:
a guidewire;

an advancing mechanism having a distal region, the advancing mechanism adapted to operate with the guidewire; and a filter releasably attached to the distal region of the advancing mechanism, the filter being attached to the advancing mechanism through a releasable interlock and being adapted to slideably engage the guidewire, wherein the releasable interlock is a magnetic interlock, wherein the guidewire has a distal stop adapted to engage the filter and prevent further distal movement of the filter relative to the guidewire, wherein the guidewire further comprises a proximal stop proximally located with respect to the distal stop, wherein the proximal stop is actuatable between a retracted condition and a deployed condition, the retracted condition permitting proximal displacement of the filter with respect to the proximal stop, the deployed condition preventing proximal displacement of the filter with respect to the proximal stop.
7. A filter system, comprising:
a guidewire;

an advancing mechanism having a distal region, the advancing mechanism adapted to operate with the guidewire; and a filter releasably attached to the distal region of the advancing mechanism, the filter being attached to the advancing mechanism through a releasable interlock and being adapted to slideably engage the guidewire, wherein the releasable interlock is a magnetic interlock, wherein the guidewire has a distal stop adapted to engage the filter and prevent further distal movement of the filter relative to the guidewire, wherein the guidewire further comprises a proximal stop proximally located with respect to the distal stop, and wherein the proximal stop is a barb that allows the filter to pass distally, and is operable to allow the filter to pass proximally.
8. A filter system, comprising:

a guidewire;

an advancing mechanism having a distal region, the advancing mechanism adapted to operate with the guidewire; and a filter releasably attached to the distal region of the advancing mechanism, the filter being attached to the advancing mechanism through a releasable interlock and being adapted to slideably engage the guidewire, wherein the releasable interlock is a magnetic interlock, wherein the guidewire has a distal stop adapted to engage the filter and prevent further distal movement of the filter relative to the guidewire, wherein the guidewire further comprises a proximal stop proximally located with respect to the distal stop, wherein the proximal stop is a pivoting one-way cleat that allows the filter to pass distally, and is operable to allow the filter to pass proximally.
9. The filter system of claim 8, wherein the proximal stop is operated by passing a sheath over the proximal stop.
CA2613161A 1999-11-15 2000-11-15 Guidewire filter and methods of use Expired - Fee Related CA2613161C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US44020499A 1999-11-15 1999-11-15
US09/440,204 1999-11-15
CA002358706A CA2358706C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002358706A Division CA2358706C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use

Publications (2)

Publication Number Publication Date
CA2613161A1 true CA2613161A1 (en) 2001-05-25
CA2613161C CA2613161C (en) 2010-06-01

Family

ID=23747863

Family Applications (4)

Application Number Title Priority Date Filing Date
CA2613117A Expired - Fee Related CA2613117C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use
CA2613161A Expired - Fee Related CA2613161C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use
CA2613127A Expired - Fee Related CA2613127C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use
CA002358706A Expired - Fee Related CA2358706C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2613117A Expired - Fee Related CA2613117C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA2613127A Expired - Fee Related CA2613127C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use
CA002358706A Expired - Fee Related CA2358706C (en) 1999-11-15 2000-11-15 Guidewire filter and methods of use

Country Status (8)

Country Link
US (5) US6371971B1 (en)
EP (2) EP1139912B1 (en)
JP (1) JP2003513745A (en)
AT (2) ATE452597T1 (en)
CA (4) CA2613117C (en)
DE (3) DE20022465U1 (en)
ES (1) ES2338124T3 (en)
WO (1) WO2001035857A1 (en)

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US20060015139A1 (en) 2006-01-19
ATE299358T1 (en) 2005-07-15
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US20020095174A1 (en) 2002-07-18
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US7717935B2 (en) 2010-05-18
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EP1554991B1 (en) 2009-12-23
CA2358706A1 (en) 2001-05-25
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ATE452597T1 (en) 2010-01-15
US20020183782A1 (en) 2002-12-05
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CA2613117A1 (en) 2001-05-25
CA2613127A1 (en) 2001-05-25
US7931665B2 (en) 2011-04-26
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US6371971B1 (en) 2002-04-16
DE60021249T2 (en) 2006-04-20
EP1554991A2 (en) 2005-07-20

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