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Sheath for use with an embolic protection filter

  • US 8,038,696 B2
  • Filed: 12/06/2004
  • Issued: 10/18/2011
  • Est. Priority Date: 12/06/2004
  • Status: Expired due to Fees
First Claim
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1. A method for using an embolic protection filter assembly, comprising the steps of:

  • providing an embolic protection filter assembly, the assembly including an elongate shaft, a filter coupled to the shaft, and a sheath disposed about a portion of the shaft and positioned adjacent the filter, the sheath including a port through a side wall of the sheath;

    shifting the filter to a first position within the sheath, wherein the first position includes at least a portion of the filter being positioned proximally of the port and collapsed within the sheath;

    providing a guidewire having a proximal end and a distal end;

    advancing the guidewire through a blood vessel so that the distal end is positioned adjacent a target region;

    inserting a removable introducer member through the port, the introducer member having a first end, a body portion, and a second end;

    configuring the introducer member so that the first end is disposed along an exterior surface of the sheath, the body portion extends through the port and into a lumen defined by the sheath, and the second end is disposed distally of a distal end of the sheath;

    passing the proximal end of the guidewire through the introducer member and the sheath simultaneously;

    advancing the filter assembly over the guidewire until the filter assembly is positioned adjacent the target region;

    retracting the guidewire from the blood vessel; and

    shifting the filter to a second position, wherein the second position includes the filter being positioned distally of the sheath and expanded.

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