Embolic filter

• US 7,004,955 B2
• Filed: 04/16/2003
• Issued: 02/28/2006
• Est. Priority Date: 08/24/2001
• Status: Expired due to Term

• Current Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Original Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Inventors: Shen, Christopher T., Palmer, Olin
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US10/414,925
• Publication Number:
  US 20030195554A1
• Time in Patent Office: 1,049 Days
• Field of Search: 606/200, 606/113, 606/114, 606/127, 606/159, 606/198, 623/1.15, 623/1.16
• US Class Current: 606/200
• 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 2/011 Instruments for their placement or removal
• 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 2230/0006 circular
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2230/0097 Harpoon-shaped

Abstract

An intravascular filter device for use in capturing debris which may occur as a result of an intravascular procedure. The filter device includes a proximal section, a distal section and a mid-section. The mid-section includes three rings configured in a sixteen apices alternating V-pattern. The filter device specifically embodies structure that provides enhanced radial opening and angular resistance to collapse in its expanded state. While, in its compressed state the filter device provides an extremely small compressed profile giving it the desired ability to be delivered into very small vessels of the human vasculature.

Claims

1. A medical device for capturing material within vasculature, comprising:

an elongate member having a first end portion and a second end portion; and

a body, the body including a first section defined by a plurality of first section members connecting the body to the elongate member and further including a second section connected to the first section, the second section defined by second section members configured to provide the body with a decreasing porosity in a direction superior to the first body section.

2. The device of claim 1, wherein the device is cut from a tube.

3. The device of claim 1, wherein the second section of the body is defined by a plurality of rings, each of the rings having a different longitudinal length.

4. The device of claim 3, wherein the plurality of rings are three in number.

5. The device of claim 1, further comprising a closed terminal end.

6. The device of claim 1, wherein the first section members are curved.

7. The device of claim 1, the second section of members defining at least one ring forming alternating V-patterns forming sixteen apices.

8. The device of claim 1, the first section of the body including a first series of members configured longitudinally inferior to a second series of members.

9. The device of claim 1, further comprising a terminal tip.

10. The device of claim 1, the body further including an inferior opening to an interior of the body, the body being attached to the elongate member such that the elongate member is attached to a side wall of the inferior opening.