An apparatus is described for endovasculary replacing a native aortic valve, the apparatus comprising: an anchor (30 350) adapted to be endovascularly delivered and secured at an anchor site within the native aortic valve, and a replacement valve (20) configured to be secured within the anchor (30 350), wherein the anchor (30 350) comprises a proximal deployment system interface at a proximal end of the anchor (30 350), the proximal deployment system interface being adapted to permit a deployment system to apply a distally directed force on the proximal end of the anchor (30 350).
