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.