Patent ID: 7494485
Filing Date: 2009-02-24
Classification: A61B

Abstract:
1. A method of providing embolic protection at a lesion in a treatment zone in a vessel, the lesion location defining the location of the treatment zone, said method comprising: inserting and positioning an occlusion device in said vessel at a location distal of the lesion without placing an occlusion device proximal of the lesion in the same vessel; treating a lesion is said vessel at a treatment zone near said occlusion device with a treatment device; followed by, positioning an extraction section at a location near said lesion, said extraction section of the type having a fluid ejection port where injected primary fluid mixes with ambient fluid and debris creating a wall attached entrained flow; supplying a fluid to said extraction section forming a primary flow to engage and entrain debris at the site of said lesion generating an entrained flow, said entrained flow containing both primary flow and debris from the lesion; providing a sheath having an extraction lumen proximal of said extraction section to receive said entrained flow.