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Device for Filtering of Blood During Removal of Heart Valve Stenosis and Method of Removing Heart Valve Stenosis

  • US 20090069841A1
  • Filed: 11/21/2008
  • Published: 03/12/2009
  • Est. Priority Date: 05/23/2006
  • Status: Active Grant
First Claim
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1. A device for the filtering of blood during removal of a heart valve stenosis comprising:

  • a filter catheter including a catheter lumen and at its distal end, for filtering the blood to be found downstream behind a heart valve, a filter which moves distally into and out of the filter catheter, wherein the filter is designed to expand radially to an extended state in which the filter fits up against a blood vessel wall, anda balloon catheter which is guided through the catheter lumen of the filter catheter from a proximal end to the distal end, wherein the balloon catheter includes at its distal end a balloon for removal of a heart valve stenosis,andwherein the catheter lumen has a diameter of approximately 4 to 7 millimeters (mm).

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