Emboli and Thrombi Filter Device and Method of Using the Same

• US 20070049965A1
• Filed: 10/24/2006
• Published: 03/01/2007
• Est. Priority Date: 12/23/2002
• Status: Active Grant

• Current Assignee: Syntheon LLC
• Original Assignee: Syntheon LLC
• Inventors: Bales, Thomas
• Granted Patent: US 7,972,355 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• 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 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2230/0097 Harpoon-shaped

Abstract

A filter basket device includes two shaft wires, a filter basket adapted to capture emboli and thrombi, and an actuation handle. The shaft wires are loosely twisted together so that they remain adjacent to each other, and yet are able to slide relative to each other with little friction and without plastic deformation. One shaft wire is connected to the distal end of the filter basket, and the other shaft wire is connected to the proximal end of the filter basket. The actuation handle moves the shaft wires relative to each other to control opening and closing of the basket. In one embodiment, a guidewire-accepting fitting is attached to a distal portion of the device and permits advancement of the device over a guidewire until a desired location along the guidewire is reached. In another embodiment, the basket is provided with a tip resembling a guidewire.

Claims

1-30. -30. (canceled)

31. A method of advancing a surgical device having a filter into a mammalian body, comprising:

a) inserting a guidewire into the mammalian body;

b) mounting the basket device to the guidewire such that a portion of the basket device extends

alongside the guidewire; and

c) slidably advancing the device relative to the guidewire until the filter is at a desired location within the body.

32. A method according to claim 31, wherein:

the mammalian body is a human cadaver.