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US7094249B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Distal protection device and method

Assignee: Boston Scientific Scimed Inc
•
Filing: 2000-11-27
•
Granted: 2006-08-22
•
Expires: 2020-11-27
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Abstract

Abstract A device adapted for deployment in a body vessel for collecting floating debris and emboli in a filter. The device includes a collapsible proximally tapered frame for operably supporting the filter between a collapsed insertion profile and an expanded deployment profile. The tapered collapsible frame includes a mouth which is sized to extend to walls of the body vessel in the expanded deployed profile to seal the filter relative to the body vessel for collecting debris floating in the body vessel.

Inventors

  • 👤 Thomas E. Broome
  • 👤 John M. K. Daniel
  • 👤 Thomas R. Hektner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/013; A61B; A61B17/00; A61B17/22; A61B17/221; A61F2/0105; A61F2/0108; A61B2017/00535; A61B2017/00539; A61B2017/22038; A61B2017/22042; A61B2017/22049; A61B2017/22051; A61B2017/22061; A61B2017/2212; A61F2002/018; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2210/00; A61F2210/0014; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0067; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09125; A61M2025/09175; A61M2025/09183

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 106 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a distal region and a stop on the distal region; a capture ring disposed for translation on the guide wire, the stop limiting translation of the capture ring in a distal direction; and a filter sac connected to the capture ring, wherein, when the filter sac is deployed in the vessel, rotation or distal translation of the guide wire relative to the capture ring does not displace the filter sac, but retraction of the guide wire in a proximal direction causes the stop to abut against the capture ring.
Claim 2
Dependent Claim 106 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a distal region and a stop on the distal region; a capture ring disposed for translation on the guide wire, the stop limiting translation of the capture ring in a distal direction; and a filter sac connected to the capture ring, wherein, when the filter sac is deployed in the vessel, rotation or distal translation of the guide wire relative to the capture ring does not displace the filter sac, but retraction of the guide wire in a proximal direction causes the stop to abut against the capture ring.
Claim 3
Dependent Claim 89 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a first portion having a first diameter and a distal region having a second diameter greater than the first diameter; and a filter element having a capture ring disposed for translation on the first portion, the capture ring having an aperture greater than the first diameter but smaller than the second diameter, wherein rotation or distal translation of the guide wire relative to the capture ring does not displace the filter element.
Claim 4
Dependent Claim 89 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a first portion having a first diameter and a distal region having a second diameter greater than the first diameter; and a filter element having a capture ring disposed for translation on the first portion, the capture ring having an aperture greater than the first diameter but smaller than the second diameter, wherein rotation or distal translation of the guide wire relative to the capture ring does not displace the filter element.
Claim 5
Dependent Claim 13 words
The apparatus of claim 2 wherein the filter element comprises an expandable sac.
Claim 6
Dependent Claim 32 words
The apparatus of claim 2 wherein the guide wire further comprises a flange disposed on the distal region having a diameter larger than the diameter of the aperture in the capture ring.
Claim 7
Independent Claim 124 words
A method of filtering emboli from blood flowing through a vessel, the method comprising: providing a guide wire having a distal region including a stop, and a filter element having a capture ring disposed for translation on the guide wire proximal of the stop; transluminally inserting the guide wire and filter element into a vessel; deploying the filter element to engage a wall of the vessel, the filter element filtering emboli out of blood flowing through the vessel; advancing a treatment device along the guide wire to treat a portion of the vessel proximal to the location of the filter element, rotation or distal translation of the guide wire relative to the filter element imparted by the treatment device not displacing the filter element.
Claim 8
Independent Claim 124 words
A method of filtering emboli from blood flowing through a vessel, the method comprising: providing a guide wire having a distal region including a stop, and a filter element having a capture ring disposed for translation on the guide wire proximal of the stop; transluminally inserting the guide wire and filter element into a vessel; deploying the filter element to engage a wall of the vessel, the filter element filtering emboli out of blood flowing through the vessel; advancing a treatment device along the guide wire to treat a portion of the vessel proximal to the location of the filter element, rotation or distal translation of the guide wire relative to the filter element imparted by the treatment device not displacing the filter element.
Claim 9
Dependent Claim 29 words
The method of claim 5 further comprising: providing a delivery sheath; and compressing the filter element to a contracted state to insert the filter element within the delivery sheath.
Claim 10
Dependent Claim 37 words
The method of claim 5 wherein the filter element comprises an expandable sac, and deploying the filter element comprises expanding the expandable sac so that a perimeter of the expandable sac contacts the wall of the vessel.
Claim 11
Dependent Claim 99 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a distal region; a filter element disposed for rotation on the distal region of the guide wire, the filter element comprising a self-expanding strut and a filter sac connected to the self-expanding strut; and a distal stop disposed on the distal region distal to the filter element, the distal stop limiting distal translation of the filter element on the guide wire, wherein, when the filter sac is deployed in the vessel, rotation of the guide wire does not displace the filter element.
Claim 12
Dependent Claim 99 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a distal region; a filter element disposed for rotation on the distal region of the guide wire, the filter element comprising a self-expanding strut and a filter sac connected to the self-expanding strut; and a distal stop disposed on the distal region distal to the filter element, the distal stop limiting distal translation of the filter element on the guide wire, wherein, when the filter sac is deployed in the vessel, rotation of the guide wire does not displace the filter element.
Claim 13
Independent Claim 145 words
A method of filtering emboli from blood flowing through a vessel, the method comprising: providing a guide wire having a distal region including a distal stop, and a filter element disposed for translation on the guide wire proximal to the distal stop, the filter element comprising a plurality of self-expanding struts having a filter sac affixed thereto; transluminally inserting the guide wire and filter element into a vessel; deploying the filter element so that the struts and filter sac expand to engage a wall of the vessel, the filter sac filtering emboli out of blood flowing through the vessel; advancing a treatment device along the guide wire to treat a portion of the vessel proximal to the location of the filter element, rotation or distal translation of the guide wire relative to the filter element imparted by the treatment device not displacing the filter element.
Claim 14
Independent Claim 145 words
A method of filtering emboli from blood flowing through a vessel, the method comprising: providing a guide wire having a distal region including a distal stop, and a filter element disposed for translation on the guide wire proximal to the distal stop, the filter element comprising a plurality of self-expanding struts having a filter sac affixed thereto; transluminally inserting the guide wire and filter element into a vessel; deploying the filter element so that the struts and filter sac expand to engage a wall of the vessel, the filter sac filtering emboli out of blood flowing through the vessel; advancing a treatment device along the guide wire to treat a portion of the vessel proximal to the location of the filter element, rotation or distal translation of the guide wire relative to the filter element imparted by the treatment device not displacing the filter element.
Claim 15
Dependent Claim 26 words
The method of claim 9 further comprising retracting the guide wire in a proximal direction to cause the distal stop to abut against the filter element.
Claim 16
Dependent Claim 54 words
The method of claim 9 further comprising: providing a retrieval catheter having a recovery sock; advancing the retrieval catheter over the guide wire until the recovery sock covers a mouth of the filter element; and urging the retrieval catheter against the self-expanding struts of the filter element to cause the filter element to collapse.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2009-08-21 2010-02-20 2010-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2013-08-21 2014-02-20 2014-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2017-08-21 2018-02-20 2018-08-22 $7700.00 Window Closed / Lapsed

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