Expandable emboli filter and thrombectomy device

• US 8,366,737 B2
• Filed: 08/25/2010
• Issued: 02/05/2013
• Est. Priority Date: 01/23/2001
• Status: Expired due to Fees

• Current Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories Incorporated)
• Inventors: Hancock, David, Tremulis, William S., Phonthalasa, Saypin, Palmer, Olin, Voss, Larry, Walker, Gary A.
• Primary Examiner(s): TYSON, MELANIE RUANO
• Application Number:
  US12/868,558
• Publication Number:
  US 20110106138A1
• Time in Patent Office: 895 Days
• Field of Search: None
• US Class Current: 606/200
• CPC Class Codes: A61F 2/0105 Open ended, i.e. legs gathered only at one side
• 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 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0065 toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2230/0097 Harpoon-shaped

Abstract

Expandable emboli filter and thrombectomy devices adapted for use with microcatheters to remove debris from blood vessels. The devices embody expanded profiles that span the entirety of various sized target vessels and thus are particularly effective in the engagement of debris found in vessels.

Claims

1. An expandable device for repairing a blood vessel, comprising:

an elongate member having a first stop and a second stop positioned distal to the first stop;

a generally tubular elongate member positioned coaxially about the elongate member, the tubular elongate member having a distal end portion;

an expandable basket defined by wire elements affixed to the distal end portion, the expandable basket having a terminal end, the wire elements having proximal portions and distal portions, the distal portions being more stiff than the proximal portions; and

a slidable member positioned about the elongate member and between the first and second stops, the slidable member affixed to the terminal end.

2. The expandable device of claim 1, wherein the slidable member has a first end and a second end, the expandable basket being held in a compressed configuration when the first end is held in contact with the first stop.

3. The expandable device of claim 2, wherein the basket is expanded when the second end is caused to engage the second stop.

4. An expandable device for repairing a blood vessel, comprising:

an elongate member having a first stop and a second stop positioned distal to the first stop;

a generally tubular elongate member positioned coaxially about the elongate member, the tubular elongate member having a distal end portion;

an expandable basket affixed to the distal end portion, the expandable basket having a terminal end; and

a slidable member positioned about the elongate member and between the first and second stops, the slidable member affixed to the terminal end,

wherein the basket is defined by helically routed wire elements, the wire elements having proximal and distal portions, the distal portions being more stiff than the proximal portions.

5. The expandable device of claim 4, wherein continued expansion of the expandable basket results in a proximally directed concavity.

6. The expandable device of claim 4, further including at least one leash routed from the expandable basket to the generally tubular elongate member.

7. The expandable device of claim 4, wherein the slidable member has a first end and a second end, the expandable basket being held in a compressed configuration when the first end is held in contact with the first stop.

8. The expandable device of claim 7, wherein the expandable basket is expanded when the second end is caused to engage the second stop.

9. An expandable device for repairing a blood vessel, comprising:

a first elongate member having a first stop and a second stop positioned distal to the first stop;

a second elongate member having a distal end portion;

a plurality of helically routed wire elements, the wire elements having proximal and distal portions, the distal portions having greater stiffness than the proximal portions, the helically routed wire elements forming an expandable basket affixed to the distal end portion of the second elongate member, the expandable basket having a terminal end; and

a slidable member positioned about the first elongate member and between the first and second stops, the slidable member being affixed to the terminal end of the expandable basket.

10. The expandable device of claim 9, wherein the slidable member has a first end and a second end, the expandable basket being held in a compressed configuration when the first end is held in contact with the first stop.

11. The expandable device of claim 10, wherein the expandable basket is expanded when the second end is caused to engage the second stop.

12. The expandable device of claim 11, wherein continued expansion of the expandable basket results in a proximally directed concavity formed by the expandable basket.

13. The expandable device of claim 9, further including at least one leash routed from the expandable basket to the second elongate member.