Patent ID: 8548605

Claim:
A system comprising a capsule and an implantation accessory, comprising: an autonomous capsule having a cylindrical body and at least one coupling finger secured to the cylindrical body and extending radially outward therefrom; the cylindrical body having an outside diameter and at one end a projecting helical anchoring screw axially extending from the cylindrical body, to penetrate tissue of the wall of a cavity of the heart, the anchoring screw having a plurality of coils having a helix direction; an implantation accessory having a proximal end and a distal end and a disconnectable means for supporting and guiding said capsule to an implantation site, and for rotational driving of the capsule to allow simultaneous driving and anchoring of the anchoring screw in the wall of the heart cavity, wherein: said disconnectable means further comprises a lead body having a sheath of deformable material and a distal end, and a helical guide having a plurality of coils on said distal end, wherein: the helical guide extends axially from the lead body and is secured to it in rotation and in translation; the helical guide has an inner diameter homologous to the outside diameter of the cylindrical body of the capsule so as to house the capsule inside with the at least one coupling finger protruding between the coils of helical guide; and the helical coils have a helix direction that is opposite to that of the anchoring screw.