Patent ID: 7604646
Filing Date: 2009-10-20
Classification: A61B,A61F

Abstract:
1. An implantable fixation device for engaging cardiac tissue comprising: a pair of elements each having a first end, a free end opposite the first end, and an engagement surface therebetween for engaging the tissue, the first ends being moveable between an open position wherein the free ends are spaced apart and a closed position wherein the free ends are closer together with the engagement surfaces generally facing each other, wherein the pair of elements in the closed position are adapted to reduce retrograde blood flow across the engaged tissue; a locking mechanism coupled to the elements for locking the elements in place along a continuum of positions between the open position and the closed position; a moveable stud pivotably coupled to both the elements wherein movement of the stud moves both the elements between the positions, the locking mechanism comprising at least one wedging element for frictionally engaging the stud to restrict movement thereof, the at least one wedging element comprising a binding plate having a first end, a second end and a portion therebetween shaped to engage the stud, the binding plate positioned so that the portion is disposed near the stud; and an unlocking mechanism for disengaging the locking mechanism, wherein the unlocking mechanism comprises a harness, the harness adapted to move the second end while the first end remains substantially stationary so as to reduce frictional engagement of the at least partially surrounding portion with the stud.