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Methods, systems, and devices for providing embolic protection and removing embolic material

  • US 8,535,344 B2
  • Filed: 09/09/2004
  • Issued: 09/17/2013
  • Est. Priority Date: 09/12/2003
  • Status: Active Grant
First Claim
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1. A filter device for percutaneous insertion into a blood vessel during a procedure, the filter device comprising:

  • (a) a guide member comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end;

    (b) filtering means for filtering material from a blood stream, said means being coupled to said guide member and having a proximal end and a distal end;

    (c) a first restraining means for restraining said filtering means, wherein said first restraining means comprises a sleeve at least partially surrounding said filtering means, wherein said sleeve is releasably secured with a tether wire, said tether wire passing through a plurality of openings in said sleeve, said tether wire being at least partially releasable by an operator to allow deployment of said filter; and

    (d) a second restraining means for restraining said filtering means, said second restraining means cooperating with said first restraining means in restraining said filtering means in an undeployed position.

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