Emboli capturing device having a coil and method for capturing emboli

• US 20110098738A1
• Filed: 10/06/2005
• Published: 04/28/2011
• Est. Priority Date: 10/06/2004
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Hunt, James B
• Granted Patent: US 8,795,315 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• 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 2230/0076 ellipsoidal or ovoid
• CPC Class Codes: A61F 2230/008 paraboloidal

Abstract

An embolic capturing device for capturing emboli within a body lumen is disclosed. The embolic capturing device (10) comprises a filtering basket (20) and at least one coil (22) attached to the basket. The filtering basket includes a frame (23) and a filtering body (30) disposed on the frame. The at least one coil is attached to the filtering body for filtering emboli in the body lumen.

Claims

1. An embolic capturing device for capturing emboli with a lumen, the device comprising:

a basket including a frame and a filtering body disposed on said frame, the basket being configured to have an expanded state and a collapsed state, the frame comprising a plurality of struts; and

at least one coil separate from the filtering body and attached to the basket and extending from one of said struts and extending across the basket to another strut for capturing emboli.

2. The device of claim 1 further comprising the frame having first and second portions, the filtering body having a lip disposed on the second portion of the frame to define an opening of the filtering body when the basket is in the expanded state for capturing emboli, the filtering body extending from the lip to a filter end.

3. The device of claim 2 wherein the filtering body is disposed on the second portion of the frame.

4. The device of claim 1 wherein the at least one coil comprises a plurality of coils.

5. The device of claim 1 further comprising a tubular shaft having a shaft body extending to a distal portion, the shaft body having slits formed longitudinally therethrough to the distal portion, the slits defining said plurality of struts forming the frame of the basket.

6. The device of claim 5 wherein the tubular shaft is formed of a malecot configuration, the second portion of the frame being integral with the distal portion of the frame and the first portion being integral with the shaft body to define the malecot configuration.

7. The device of claim 2 further comprising a tubular shaft having proximal and distal ends, the distal end being connected to the first portion of the frame for delivery and retrieval of the device.

8. The device of claim 7 further comprising the plurality of struts including at least one pair of opposed struts being integrally formed, each pair of struts being configured to distally extend from the proximal end of the tubular shaft of the second portion and further extend oppositely to the proximal end, defining the basket.

9. The device of claim 1 further comprising a filtering body of super-elastic material, connective tissue material, shape memory alloy, aluminium, platinum, metal alloy, nylon, polymeric material, polytetrafluoroethylene, or a mixture thereof.

10. The device of claim 1 wherein the struts are formed of a super-elastic material or a shape memory alloy, preferably a material selected from the group consisting of stainless steel, cobalt-chromium-nickel-molybdenum-iron alloy, cobalt-chrome alloy and Nitinol.

11. A distal protection apparatus for capturing emboli within a body vessel, the apparatus comprising:

an embolic capturing device according to any one of the preceding claims; and

a tubular shaft having proximal and distal ends.

12. The apparatus of claim 11 wherein the tubular shaft further includes a balloon formed thereon for stenosis procedure.

13. A method for capturing emboli within a body vessel, the method comprising:

percutaneously introducing an embolic capturing device for capturing emboli during a stenosis procedure at a stenotic area, the embolic capturing device including;

a basket including a frame and a filtering body attached within the frame, the frame having first and second portions; and

at least one coil attached to the basket for filtering emboli in a body lumen;

disposing the embolic capturing device through the stenotic area; and

deploying the embolic capturing device in the body vessel to capture emboli.