MULTI-WIRE EMBOLIC PROTECTION FILTERING DEVICE

• US 20070100371A1
• Filed: 10/05/2006
• Published: 05/03/2007
• Est. Priority Date: 02/24/2003
• Status: Abandoned Application

• Current Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Fedie, Byron
• Application Number:
  US11/539,011
• Publication Number:
  US 20070100371A1
• Time in Patent Office: Days
• 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 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 2230/0067 conical
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

An embolic protection filtering device and method of making and using the same. The present invention comprises a filtering device including an elongate shaft and a filter that may be releasably attachable to the shaft. The filter may include a coupling member that may be used to secure the filter to the shaft.

Claims

1. An embolic protection device comprising:

a filter having an open end and an closed end; and

an inflatable coupling member disposed at the closed end.

2. The embolic protection device of claim 1, wherein the inflatable coupling member is configured to secure the filter to an elongate member when the inflatable coupling member is inflated.

3. The embolic protection device of claim 1, wherein the inflatable coupling member is configured to permit the filter to move relative to an elongate member when the inflatable coupling member is deflated.

4. The embolic protection device of claim 1, wherein the coupling member includes an inflation port.

5. The embolic protection device of claim 4, further comprising an inflation tube coupled to the coupling member adjacent the inflation port.

6. The embolic protection device of claim 1, further comprising an expansion member.

7. The embolic protection device of claim 6, wherein the expansion member comprises one or more inflation tubes.

8. The embolic protection device of claim 1, wherein the filter includes one or more inflatable longitudinal ribs.

9. An embolic protection assembly comprising:

an elongate shaft; and

the embolic protection device of claim 1 disposed on the elongate shaft.

10. The embolic protection assembly of claim 9, wherein the elongate shaft comprises a guidewire.

11. A medical device, comprising:

an elongate shaft;

a filter coupled to the shaft;

a coupling member coupled to the filter, the coupling member including one or more gripping arms;

wherein the gripping arms are pivotable about a pivot point between a first position where the filter is slidable along the shaft and a second position where the arms secure the position of the filter relative to the shaft;

an expansion member coupled to the filter and to the coupling member; and

wherein radial expansion of the expansion member pivots the coupling member into the second position.

12. A method for coupling a filter to a guidewire, comprising the steps of;

providing a guidewire;

providing a filtering assembly, the filtering assembly including a filter having an inflatable coupling member attached thereto;

advancing the filter assembly along the guidewire to a desirable position; and

inflating the coupling member so as to secure the filtering assembly to the guidewire.

13. The method of claim 12, wherein the step of inflating the coupling member so as to secure the filtering assembly to the guidewire includes releasably attaching an inflation tube to the coupling member and infusing inflation media through the inflation tube and into the coupling member.

14. The method of claim 12, wherein the coupling member includes an inflation tube, and wherein the step of inflating the coupling member so as to secure the filtering assembly to the guidewire includes infusing inflation media through the inflation tube and into the coupling member.

15. The method of claim 12, wherein the step of inflating the coupling member so as to secure the filtering assembly to the guidewire precedes the step of advancing the guidewire to a desirable position within a body lumen.

16. The method of claim 12, wherein the step of inflating the coupling member so as to secure the filtering assembly to the guidewire follows the step of advancing the guidewire to a desirable position within a body lumen.

17. The method of claim 12, wherein the filter includes an inflatable expansion member, and wherein the step of expanding the filter includes inflating the expansion member.