§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US6726703B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Distal protection device and method

Assignee: Boston Scientific Scimed Inc
•
Filing: 2002-01-29
•
Granted: 2004-04-27
•
Expires: 2022-01-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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 2026-10-22 23:47
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/011; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0067

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 74 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a distal region and a docking member rigidly coupled to the distal region; a distal cone disposed for translation on the guide wire, the docking member limiting translation of the distal cone in a distal direction; and a filter sac connected to the distal cone, wherein the distal cone can be removably coupled to the docking member.
Claim 2
Dependent Claim 74 words
Apparatus for filtering emboli from blood flowing through a vessel, the apparatus comprising: a guide wire having a distal region and a docking member rigidly coupled to the distal region; a distal cone disposed for translation on the guide wire, the docking member limiting translation of the distal cone in a distal direction; and a filter sac connected to the distal cone, wherein the distal cone can be removably coupled to the docking member.
Claim 3
Dependent Claim 54 words
The apparatus of claim 1 wherein, when the filter sac is deployed in the vessel, rotation or distal translation of the guide wire relative to the distal cone does not displace the filter sac, but retraction of the guide wire in a proximal direction causes the docking member to abut against the distal cone.
Claim 4
Dependent Claim 26 words
The apparatus of claim 1 wherein the docking member contains a grove and the distal cone contains a locking ring sized for insertion into the grove.
Claim 5
Dependent Claim 100 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 distal cone disposed for translation on the first portion, the distal cone 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 distal cone does not displace the filter element, and distal cone can be removably coupled to the docking member.
Claim 6
Dependent Claim 100 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 distal cone disposed for translation on the first portion, the distal cone 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 distal cone does not displace the filter element, and distal cone can be removably coupled to the docking member.
Claim 7
Dependent Claim 32 words
The apparatus of claim 4 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 distal cone.
Claim 8
Dependent Claim 149 words
Apparatus for filtering emboli during treatment of occlusive disease in a vessel, the apparatus comprising: a guide wire having a first diameter and a distal region having a second diameter greater than the first diameter; a filter element having a sac coupled to a distal cone, the distal cone having an aperture greater than the first diameter but smaller than the second diameter, wherein the filter element is disposed on the guide wire and the guide wire extends through the aperture with the distal region disposed distally of the distal cone, so that when the filter element is deployed in the vessel, rotation or distal translation of the guide wire does not displace the filter element, but retraction of the guide wire in a proximal direction causes the distal region to abut against the distal cone, and wherein the distal cone can be removably coupled to the docking member.
Claim 9
Dependent Claim 149 words
Apparatus for filtering emboli during treatment of occlusive disease in a vessel, the apparatus comprising: a guide wire having a first diameter and a distal region having a second diameter greater than the first diameter; a filter element having a sac coupled to a distal cone, the distal cone having an aperture greater than the first diameter but smaller than the second diameter, wherein the filter element is disposed on the guide wire and the guide wire extends through the aperture with the distal region disposed distally of the distal cone, so that when the filter element is deployed in the vessel, rotation or distal translation of the guide wire does not displace the filter element, but retraction of the guide wire in a proximal direction causes the distal region to abut against the distal cone, and wherein the distal cone can be removably coupled to the docking member.
Claim 10
Independent Claim 138 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 docking member, and a filter element having a distal cone disposed for translation on the guide wire proximal of the docking member, wherein the distal cone can be removably coupled to the docking member; 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 11
Independent Claim 138 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 docking member, and a filter element having a distal cone disposed for translation on the guide wire proximal of the docking member, wherein the distal cone can be removably coupled to the docking member; 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 12
Independent Claim 51 words
The method of 7 wherein: the docking member contains a grove and the distal cone contains a locking ring sized for insertion into the grove; and the locking ring of the distal cone is inserted into the grove of the docking member until the locking ring is wholly within the grove.
Claim 13
Independent Claim 51 words
The method of 7 wherein: the docking member contains a grove and the distal cone contains a locking ring sized for insertion into the grove; and the locking ring of the distal cone is inserted into the grove of the docking member until the locking ring is wholly within the grove.
Claim 14
Dependent Claim 29 words
The method of claim 7 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 15
Dependent Claim 37 words
The method of claim 9 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 16
Dependent Claim 91 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 docking member rigidly coupled to the distal region distal to the filter element, the docking member limiting distal translation of the filter element on the guide wire, wherein the filter element can be removably coupled to the docking member.
Claim 17
Dependent Claim 91 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 docking member rigidly coupled to the distal region distal to the filter element, the docking member limiting distal translation of the filter element on the guide wire, wherein the filter element can be removably coupled to the docking member.
Claim 18
Dependent Claim 26 words
The apparatus of claim 11 wherein, when the filter sac is deployed in the vessel, rotation of the guide wire does not displace the filter element.
Claim 19
Dependent Claim 26 words
The apparatus of claim 11 wherein the docking member contains a groove and the filter element contains a locking ring sized for insertion into the groove.
Claim 20
Independent Claim 164 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 docking member rigidly coupled to the distal region, and a filter element disposed for translation on the guide wire proximal to the docking member, the filter element comprising a plurality of self-expanding struts having a filter sac affixed thereto, wherein the filter element can be removably coupled to the docking member; 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; and 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 21
Independent Claim 164 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 docking member rigidly coupled to the distal region, and a filter element disposed for translation on the guide wire proximal to the docking member, the filter element comprising a plurality of self-expanding struts having a filter sac affixed thereto, wherein the filter element can be removably coupled to the docking member; 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; and 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 22
Dependent Claim 26 words
The method of claim 14 further comprising retracting the guide wire in a proximal direction to cause the docking member to abut against the filter element.
Claim 23
Dependent Claim 26 words
The method of claim 14 wherein the docking member contains a groove and the filter element contains a locking ring sized for insertion into the groove.
Claim 24
Dependent Claim 54 words
The method of claim 14 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.

References Cited (Backward Citations)

US3592186A Cited
US3683904A Cited
US3952747A Cited
US3996938A Cited
US4046150A Cited
SU764684A1 Cited
GB2020557B Cited
US4425908A Cited
US5190546A Cited
US4926858A Cited
US4706671A Cited
US4790812A Cited
US4728319A Cited
US4723549A Cited
US4794928A Cited
US4873978A Cited
US4998539A Cited
US4921484A Cited
US5011488A Cited
US4969891A Cited
US5102415A Cited
US5002560A Cited
DE4030998A1 Cited
US5133733A Cited
US5421832A Cited
US5071407A Cited
US5329942A Cited
US5108419A Cited
US5100423A Cited
US5415630A Cited
US5190555A Cited
US5376100A Cited
US5817102A Cited
US5746758A Cited
US5354310A Cited
US5370657A Cited
WO1994024946A1 Cited
US5456667A Cited
US5792300A Cited
WO1996001591A1 Cited
US5476104A Cited
US5658296A Cited
US5709704A Cited
US5549626A Cited
EP0737451A1 Cited
US5833650A Cited
US5779716A Cited
US6136016A Cited
US6117154A Cited
US6235045B1 Cited
US5769816A Cited
US5989281A Cited
US5980555A Cited
US5695519A Cited
US6090097A Cited
US5833644A Cited
US5976172A Cited
WO1998002112A1 Cited
US5997557A Cited
US6010522A Cited
US5895399A Cited
US6309399B1 Cited
US5662671A Cited
US6179851B1 Cited
WO1998002084A2 Cited
US5893867A Cited
US5876367A Cited
WO1998033443A1 Cited
US5827324A Cited
US6001118A Cited
WO1998039053A1 Cited
US5814064A Cited
US6086605A Cited
US5846260A Cited
WO1998050103A1 Cited
US5911734A Cited
US5954745A Cited
US6086577A Cited
WO1999023976A1 Cited
US6277139B1 Cited
US6068645A Cited
US6468291B2 Cited
US6371971B1 Cited
US6551341B2 Cited
US6592606B2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2007-04-27 2007-10-27 2008-04-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2011-04-27 2011-10-27 2012-04-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2015-04-27 2015-10-27 2016-04-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag