Back to results
US 2003/0199819 A1Published application
Filter wire system
OwnerRobert C. Beckinventor
Life of this patent
Estimating the term…
Abstract
A therapeutic interventional device such as a balloon catheter is provided with a nozzle to induce a retrograde flow in the vessel by injecting fluid through the nozzle into the vessel. The retrograde flow can be used to clear debris from a distal protection device such as a filter or balloon and may additionally be used to clear the vessel of clot prior to the intervention.
Claims5
A method for extracting debris from a vessel having a lesion comprising the steps of:
- placing a therapy catheter in contact with a lesion;
- inflating the therapy balloon to treat the lesion producing debris;
- injecting fluid into a extraction section creating a pressure gradient across the therapy balloon while it is inflated;
- deflating the therapy balloon while injecting fluid to promote a retrograde flow across the surface of the therapy balloon entraining, capturing and moving debris in the retrograde direction.
1 more element
Dependencies are inferred from the claim text.