Patent ID: 7846175
Filing Date: 2010-12-07
Classification: A61F,A61M

Abstract:
1. A guidewire with a collapsible filter comprising: a. the guidewire having a tubular distal portion, the tubular distal portion having a distal portion, a longitudinal slot in a wall of the tubular distal portion, the slot further containing a frangible material and an exit path at the distal portion; b. the collapsible filter being made of a flexible fine mesh material secured over and about the tubular distal portion of the guidewire, the collapsible filter having a length from a proximal end to a distal end, the distal end of the collapsible filter being attached to the tubular distal portion of the guidewire; c. the collapsible filter exhibits shape memory, whereby such a shape is compressibly suitable for automatic expansion from within a delivery sheath; d. a flexible cord passing through the slot and exiting at the exit path at the distal end of the filter and running along the length of the filter from the distal end to the proximal end and only attaching to the proximal end of the collapsible filter; and e. the guidewire, the collapsible filter, and the flexible cord being configured so that tension applied to the flexible cord causes the collapsible filter to be drawn towards a collapsed configuration.