Patent ID: 6254563
Filing Date: 2001-07-03
Classification: A61M

Abstract:
A catheter apparatus for use in a body passage, comprising:a catheter shaft;an expandable conduit mounted on said catheter shaft, said expandable conduit having an upstream end, a downstream end and a filter mesh material extending therebetween, said expandable conduit having a collapsed position in which said expandable conduit is collapsed toward said catheter shaft and an expanded position in which said upstream end of said expandable conduit is open to fluid flow;an upstream sealing member at said upstream end of said expandable conduit for creating a seal between said upstream end of said expandable conduit and an internal wall of the body passage; anda downstream sealing member at said downstream end of said expandable conduit for creating a seal between said downstream end of said expandable conduit and the internal wall of the body passage.