Medical device fixation anchors

摘要

An implantable medical device includes a frame that includes at least one elongate member. The implantable medical device also includes a fixation member that has a first cuff, a second cuff, a tissue engagement member configured to anchor to tissue at an implant site to thereby hold the implantable medical device in a position at the implant site, and a cuff joining member that has an arcuate shape and that is connected at a first end to the first cuff and at a second end to the second cuff. The first cuff substantially surrounds a perimeter of a first portion of the at least one elongate member, the second cuff substantially surrounds a perimeter of a second portion of the at least one elongate member, and the cuff joining member does not substantially surround a perimeter of any portion of the at least one elongate member.

主权项

1. An implantable medical device, comprising:
a frame comprised of at least one elongate member; and a fixation member engaged with the at least one elongate member, the fixation member comprising:
a first cuff surrounding a perimeter of the at least one elongate member from between 180° to 360°;a second cuff surrounding the perimeter of the at least one elongate member from between 180° to 360°;a first tissue engagement member configured to anchor to tissue at an implant site to thereby hold the implantable medical device in a position at the implant site; anda cuff joining member connected at a first end to the first cuff and at a second end to the second cuff, the fixation member configured such that, in response to a bending of the at least one elongate member to create a bend portion, the cuff joining member seeks alignment with an inside curvature of the bend portion, and wherein the cuff joining member surrounds the perimeter of the at least one elongate member by less than about 180°.