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Device and method for improving heart valve function

  • US 10,213,305 B2
  • Filed: 11/27/2017
  • Issued: 02/26/2019
  • Est. Priority Date: 05/18/2006
  • Status: Active Grant
First Claim
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1. A blood-flow controlling device for treating a mitral or tricuspid valve in need thereof, the device comprising:

  • a blood-flow blocking portion comprising an elongate structure with a substantially cylindrical portion, a portion of the blood-flow blocking portion disposable between leaflets of a native mitral or tricuspid valve and fillable with blood;

    a flexible, elongate body portion passing inside of the blood-flow blocking portion, the blood-flow blocking portion slidable up and down the body portion;

    an anchor portion disposed on a distal end of the elongate body portion, the anchor portion engageable with heart tissue at or adjacent a heart apex, the anchor portion comprising a tubular body and a plurality of pointed, elongated prongs emanating from a distal end of the tubular body, the plurality of elongated prongs self-expandable from a compressed configuration, in which the plurality of elongated prongs extend distally, and an expanded configuration, in which the plurality of elongated prongs are deflected radially outward relative to a center of the tubular body;

    an anchor delivery catheter for delivering the anchor portion having a distal end sheath that maintains the plurality of elongated prongs in the compressed configuration; and

    a locking catheter slidable along the elongate body portion,wherein the locking catheter is operable to lock the blood-flow blocking portion to the elongate body portion, preventing sliding therebetween.

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