Patent ID: 8849418

Claim:
An anchor for securing a therapy delivery element to a desired location within a living body, the anchor comprising: a deformable outer sleeve comprising a primary lumen extending along an axis, and an outer surface with a plurality of suture grooves oriented substantially concentric to the axis; an inner sleeve comprising a plurality of beams connected at deflection regions arranged around a secondary lumen, the inner sleeve located in the primary lumen adjacent to the suture grooves so that the secondary lumen is substantially concentric with the primary lumen, wherein the inner sleeve is fixed within the primary lumen of the outer sleeve; and a plurality of locations of weakness in each of the beams that facilitate localized deformation of the inner sleeve in response to a radially inward force applied around the suture grooves by a suture material, the plurality of locations of weakness including a plurality of slits extending part-way through a beam width from both a first beam edge and a second beam edge, wherein the slits alternate from extending into the beam width from the first edge to extending from the second edge without being in open communication with each other as the slits extend along the length of the beam, wherein the inner sleeve buckles at the slits in response to the radially inward force to grip the therapy delivery element disposed within the inner sleeve.