Embolic protection system

• US 7,144,408 B2
• Filed: 03/05/2003
• Issued: 12/05/2006
• Est. Priority Date: 03/05/2002
• Status: Expired due to Term

• Current Assignee: Salviac Ltd. (Abbott Laboratories)
• Original Assignee: Salviac Ltd. (Abbott Laboratories)
• Inventors: Brady, Eamon, Neilan, John, Tierney, Morgan, Keegan, Martin, Vale, David, Casey, Brendan
• Primary Examiner(s): HO, TAN-UYEN THI
• Application Number:
  US10/379,434
• Publication Number:
  US 20030212429A1
• Time in Patent Office: 1,371 Days
• Field of Search: 606/200
• US Class Current: 606/200
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/22035 for retrieving or repositioning foreign objects
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61F 2/0105 Open ended, i.e. legs gathered only at one side
• CPC Class Codes: A61F 2/0108 Both ends closed, i.e. legs gathered at both ends
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

An embolic protection filter system comprises a collapsible embolic protection filter 62 having a collapsed configuration for delivery of the filter, and a deployed configuration and a temporary lumen defining member 60. The lumen defining member 60 is used for loading a filter-containing delivery catheter 63 onto a guidewire 65. After loading, the member 60 can be removed by pulling on a tab 61.

Claims

1. An embolic protection system comprising:

a filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter,

the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature; and

a lumen-defining member defining, at least in the collapsed configuration, a guidewire lumen at least partially through the filter for passing the filter over a guidewire, the lumen-defining member being movable or removable relative to the filter,

wherein the lumen-defining member is a substantially tubular member and

wherein the tubular member has a slit extending the entire length thereof for removal of the member from a guidewire and wherein the tubular member extends at least partially through the filter.

2. A system as claimed in claim 1 wherein the lumen-defining member comprises a gripable portion for gripping the lumen-defining member to move or remove the lumen-defining member relative to the filter.

3. A system as claimed in claim 2 wherein the gripable portion is provided at a distal end of the lumen-defining member.