Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.
Type:
Grant
Filed:
October 25, 2004
Date of Patent:
September 18, 2012
Assignee:
Concentric Medical, Inc.
Inventors:
Ivan Sepetka, Son Gia, John Miller, Ryan Pierce, Maria Aboytes, Tiffany Tran Ngo
Abstract: An intravascular filter having a filament which expands a filter element. The filament is a coil which is stretched to reduce the diameter of the coil for introduction. The filter element is preferably biased toward the closed position and is opened by the coil when tension is released on the coil. The filament slides along the internal surface of the filter element so that the filter element may assume intermediate positions.