Mitral valve spacer and system and method for implanting the same

摘要

A trans-femoral implant includes an anchor assembly and a balloon assembly configured to be separately delivered to an implant site within a heart. Once delivered, the anchor assembly and balloon assembly may be coupled to form an implant within the heart. The balloon anchor may include a fluid inflatable balloon that may be selectively filled via a balloon filling valve. The balloon assembly may further include a latching mechanism that may couple with a distal end of the anchor assembly, such that the length of the implant may be adjusted within the heart.

主权项

1. An implant, comprising:
a balloon spacer assembly, the balloon spacer assembly comprising:
a balloon spacer defining a spacer cavity configured to be expanded from a deflated condition to an expanded condition with a filling fluid; anda balloon filling valve disposed within and fluidly coupled to said spacer cavity,
wherein said balloon filling valve is configured to be fluidly coupled to a source of said filling fluid and to selectively allow the introduction and withdrawal of said fluid into and out of said spacer cavity;wherein said balloon filling valve comprises a valve sheath, a valve wire, and a central tube comprising a lumen, an outer wall including a proximal opening and a distal opening there through;
the central tube coupled to a proximal and distal portion of said balloon spacer such that said spacer cavity is defined around said central tube;the valve sheath disposed around said central tube, the valve sheath configured to resiliently engage an outer surface of said central tube; andthe valve wire extending through said proximal opening and comprising a tip, the valve wire configured to selectively seal and unseal said balloon filling valve depending on the location of the tip relative to a distal edge of said valve sheath.