Patent ID: 7316706

Claim:
A system for treating mitral valve regurgitation comprising: a tensioning device comprising a tether, a distal anchoring member positioned adjacent to a distal end of the tether and a proximal anchoring member positioned adjacent to a proximal end of the tether, wherein at least one of the anchoring members includes an elastic portion that flexes in response to a heart beat when the tensioning device is positioned across a chamber of a heat; and a delivery catheter, wherein the tensioning device is slidably received within a lumen of the delivery catheter, wherein the delivery catheter comprises a guiding sheath, a piercing tube slidably received within a lumen of the guiding sheath, a holding tube slidably received within a lumen of the piercing tube, a push cylinder slidably received within a lumen of the holding tube and a stop collar attached to an outside surface of a distal portion of the piercing tube, and wherein a portion of the stop collar is self-expanding when the stop collar is positioned outside the lumen of the guiding sheath.