Vascular device for emboli, thrombus and foreign body removal and methods of use

• US 7,410,491 B2
• Filed: 11/22/2002
• Issued: 08/12/2008
• Est. Priority Date: 07/30/1999
• Status: Expired

• Current Assignee: Incept LLC
• Original Assignee: Incept LLC
• Inventors: Khosravi, Farhad, Renati, Richard, Demond, Jackson F., Ramee, Stephen, Salahieh, Amr, Krolik, Jeff A., Lepak, Jonah, Hopkins, Leo N.
• Primary Examiner(s): Hayes; Michael J.
• Assistant Examiner(s): GETTMAN, CHRISTINA DANIELLE
• Application Number:
  US10/302,433
• Publication Number:
  US 20030100919A1
• Time in Patent Office: 2,090 Days
• Field of Search: 606/200
• US Class Current: 606/200
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2/0105 Open ended, i.e. legs gathered only at one side
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/012 Multiple filtering units
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/0069 Tip not integral with tube

Abstract

Apparatus and methods are provided for use in filtering emboli from a vessel and/or performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops connected near a distal end of a guide wire, each support hoop having an articulation region, and a blood permeable sac affixed to the support hoop or hoops to form a mouth of the blood permeable sac. The mouth of the sac closes when the apparatus is collapsed for removal to prevent material from escaping from the sac.

Claims

1. An embolic protection filtering device, comprising:

a solid elongate shaft having a proximal region and a distal region;

a filter affixed to the shaft adjacent the distal region;

a nose assembly affixed to the solid shaft adjacent the filter, the nose assembly having a lumen extending therethrough; and

a guidewire slidably disposed within the lumen of the nose assembly.

2. The filtering device of claim 1, wherein the nose assembly is affixed to the shaft at a position that is distal of the filter.

3. The filtering device of claim 1, wherein the shaft extends distally from the nose assembly.

4. The filtering device of claim 1, further comprising a sheath disposed adjacent the shaft, the sheath having a lumen configured for having the filter disposed therein.

5. The filtering device of claim 4, wherein the sheath is slidable relative to the nose assembly.

6. A medical device, comprising:

an elongate solid filter wire having a proximal region and a distal region;

a filter coupled to the filter wire adjacent the distal region;

a nose assembly coupled to the filter wire adjacent the distal region and distally of the filter; and

a guidewire slidably disposed within a lumen of the nose assembly.

7. A medical device, comprising:

an elongate filter wire having a proximal region and a distal region;

a filter coupled to the filter wire adjacent the distal region;

a nose assembly coupled to the filter wire adjacent the distal region and distally of the filter;

a guidewire slidably disposed within a lumen of the nose assembly,

wherein the guidewire extends adjacent to and generally parallel with the filter wire and wherein the guidewire and the filter wire are not concentrically arranged.