Patent ID: 8622884

Claim:
A mitral valve repair device for mitral annuloplasty comprising one annular coil spring being formed as an elastic structure having flexibility along an axis of a ventricular cavity and having radial elasticity and at least one attachment member for effectively suturing the elastic structure within a heart in a rest condition in which the coil spring does not statically constrict the mitral valve, but establishes a connection to the mitral valve native annulus; wherein the annular coil spring comprises a plurality of spaced apart coils and is so configured and sized as a function of the volumetric and geometric characteristics of the mitral valve native annulus to expand from its rest position undergoing an elastic deformation and receive energy from the mitral valve native annulus during a diastolic phase of heart pumping activity under endoventricular pressure; and to collapse from the rest condition and cede the energy received to the mitral valve native annulus during a systolic phase of heart pumping activity, the spring thereby operating alternatively during the cardiac cycle as an extension spring and as a compression spring, and wherein the device, exhibits non-linear elastic properties.