§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US6702834B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Embolic protection devices

Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 2000-11-28
•
Granted: 2004-03-09
•
Expires: 2020-11-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

Inventors

  • 👤 John F. Boylan
  • 👤 William J. Boyle
  • 👤 Andy E. Denison
  • 👤 Debashis Dutta
  • 👤 Benjamin C. Huter
  • 👤 Scott J. Huter
  • 👤 Paul F. Muller
  • 👤 Samir Patel
  • 👤 Christopher J. Tarapata
  • 👤 Chicheng Wang
  • 👤 Francisco Sanchez
  • 👤 Kent C. B. Stalker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:47
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/013; A61F2002/015; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/008

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 216 words
An embolic protection device for capturing embolic debris released into a body vessel of a patient, comprising: a shaft member having a distal and a proximal end; a filtering assembly mounted on the shaft member, the filtering assembly including an expandable strut assembly and a filter attached to the strut assembly for capturing embolic debris, the expandable strut assembly having a set of proximal struts, each strut having a first end and a second end; and a deployment member having a pattern of alternating peaks and valleys in a wave-like pattern, each of the first ends of the struts being attached to the peak portions of the deployment member, the filter element being attached to the deployment member and having a filter edge having alternating peaks and valleys in a wave-like pattern corresponding to the pattern of the deployment member, the filter element being moveable with the struts and deployment member so that at least a portion thereof contacts the wall of the vessel to capture embolic debris released into the body vessel, wherein the second end of each of the struts is attached to a proximal collar placed between a proximal stop element and a distal stop element attached to the shaft member for preventing axial movement of the proximal collar along the shaft member.
Claim 2
Dependent Claim 216 words
An embolic protection device for capturing embolic debris released into a body vessel of a patient, comprising: a shaft member having a distal and a proximal end; a filtering assembly mounted on the shaft member, the filtering assembly including an expandable strut assembly and a filter attached to the strut assembly for capturing embolic debris, the expandable strut assembly having a set of proximal struts, each strut having a first end and a second end; and a deployment member having a pattern of alternating peaks and valleys in a wave-like pattern, each of the first ends of the struts being attached to the peak portions of the deployment member, the filter element being attached to the deployment member and having a filter edge having alternating peaks and valleys in a wave-like pattern corresponding to the pattern of the deployment member, the filter element being moveable with the struts and deployment member so that at least a portion thereof contacts the wall of the vessel to capture embolic debris released into the body vessel, wherein the second end of each of the struts is attached to a proximal collar placed between a proximal stop element and a distal stop element attached to the shaft member for preventing axial movement of the proximal collar along the shaft member.
Claim 3
Dependent Claim 19 words
The embolic protection device of claim 1 , wherein: the filtering assembly is rotatably mounted onto the shaft member.
Claim 4
Dependent Claim 40 words
The embolic protection device of claim 1 , wherein: the set of struts and deployment member are made from a segment of tubing made from a self-expanding material which is laser cut to form the individual struts and deployment member.
Claim 5
Dependent Claim 25 words
The embolic protection device of claim 3 , wherein: the alternating peaks and valleys forming the wave-like pattern of the deployment member are substantially V-shaped.
Claim 6
Dependent Claim 43 words
The embolic protection device of claim 1 , further including a layer of polymeric material deposited on the proximal struts, the layer of polymeric material having a coefficient of friction less than the coefficient of friction of the material forming the strut assembly.
Claim 7
Dependent Claim 22 words
The embolic protection device of claim 5 , wherein the polymeric material is selected from the group consisting of PTFE and polyimide.
Claim 8
Dependent Claim 19 words
The embolic protection device of claim 1 , further including a layer of heparin deposited on the filtering element.
Claim 9
Dependent Claim 21 words
The embolic protection device of claim 1 , further including a layer of polymeric material selectively deposited on the strut assembly.

References Cited (Backward Citations)

US3952747A Cited
GB2020557A Cited
US4425908A Cited
US4643184A Cited
US4494531A Cited
US4727873A Cited
US4619246A Cited
US4612931A Cited
US4688553A Cited
US4790813A Cited
US4706671A Cited
US4662885A Cited
US4650466A Cited
US4790812A Cited
US4723549A Cited
US4781177A Cited
US4794928A Cited
US4873978A Cited
US4998539A Cited
US4921478A Cited
US4990156A Cited
US4832055A Cited
US4921484A Cited
US5152777A Cited
US4969891A Cited
US5102415A Cited
US5100425A Cited
US4997435A Cited
US5092839A Cited
US5421832A Cited
US5496277A Cited
US5071407A Cited
EP0472334A1 Cited
US5329942A Cited
WO1992003097A1 Cited
US5108419A Cited
US5160342A Cited
US5064428A Cited
US5053008A Cited
US5695518A Cited
US5350398A Cited
US5330482A Cited
US5192286A Cited
US5626605A Cited
US5324304A Cited
US5649953A Cited
US5792157A Cited
US5501694A Cited
US5836868A Cited
US5490859A Cited
US5383887A Cited
US5496330A Cited
US5370657A Cited
US5897567A Cited
US5634942A Cited
US5720764A Cited
WO1996001591A1 Cited
US5746767A Cited
US5601595A Cited
US5792145A Cited
US5549626A Cited
US5795322A Cited
US5755790A Cited
US5681347A Cited
US5833650A Cited
US5792156A Cited
US5725550A Cited
US5779716A Cited
US5980555A Cited
US5769816A Cited
WO1997017100A1 Cited
US5989281A Cited
US6013093A Cited
US5695519A Cited
US5810874A Cited
US5976172A Cited
WO1998002084A2 Cited
US5662671A Cited
US5669933A Cited
US5846251A Cited
US5876367A Cited
US5968071A Cited
WO1998033443A1 Cited
US5800457A Cited
US5827324A Cited
US6001118A Cited
US5814064A Cited
US5772674A Cited
US5868708A Cited
US5910154A Cited
US5911734A Cited
US5846260A Cited
US5800525A Cited
US5848964A Cited
US5941896A Cited
WO1999023976A1 Cited
US6152946A Cited
US6179860B1 Cited
US6171327B1 Cited
US6340465B1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2007-03-09 2007-09-08 2008-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2011-03-09 2011-09-08 2012-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2015-03-09 2015-09-08 2016-03-09 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag