Patent ID: 8758257

Claim:
An instrument positionable with respect to a body valve in the body of a living subject for implanting anchors into living tissue at a predetermined location relative to said body valve, said instrument comprising: a movement sensor for sensing movements of said body valve; an effective portion for implanting anchors when said effective portion is at said predetermined location, said effective portion including an anchor implanting mechanism for implanting said anchors at said predetermined location; and an effective portion positioner for positioning said effective portion in said living subject; whereby said effective portion is positionable using said effective portion positioner in response to said movements sensed by said movement sensor for positioning said effective portion at said predetermined location in order to use said anchor implanting mechanism for implanting said anchors at said predetermined location; wherein said movement sensor includes a deformable element having a configuration, a rigidity and dimensions such that said deformable element is substantially freely deformable by said valve when abutting against said valve; and a deformation sensor for sensing deformations of said deformable element.