公开(公告)号：US20170274202A1

公开(公告)日：2017-09-28

申请号：US15620988

申请日：2017-06-13

Applicant: Medtronic, Inc.

Inventor： Vladimir GRUBAC ,  Thomas A. ANDERSON ,  Jonathan L. KUHN ,  Richard W. SWENSON ,  Michael P. CAMPBELL

IPC: A61N1/05 ,  A61N1/362 ,  A61N1/375

CPC classification number: A61N1/057 ,  A61N1/362 ,  A61N1/3756

Abstract: A fixation member component, for example, employed by a relatively compact implantable medical device, includes a plurality of fingers; each finger includes a first segment extending from a fixed end of the corresponding finger, and a second segment extending from the corresponding first segment to a free end of the corresponding finger. Each first segment is elastically deformable from a relaxed to an extended condition, and from the relaxed to a compressed condition, and includes a peripheral portion and a central cut-out portion, framed by the peripheral portion. In the compressed condition, a free tip of the cut-out portion of some or all of the fingers may lodge against opposing tissue surfaces, via a spring force of the compressed fingers. Each second segment and cut-out portion is preferably configured to prevent penetration thereof within tissue at the implant site.

公开(公告)号：US20190009078A1

公开(公告)日：2019-01-10

申请号：US16128270

申请日：2018-09-11

Applicant: Medtronic, Inc.

Inventor： Jonathan L. KUHN ,  Michael P. CAMPBELL ,  Vladimir GRUBAC ,  Kenneth D. RYS ,  Richard W. SWENSON ,  Charles L. WILSON

IPC: A61N1/05 ,  A61N1/375 ,  A61N1/372

CPC classification number: A61N1/0573 ,  A61N1/059 ,  A61N1/37205 ,  A61N1/37518 ,  A61N1/3756

Abstract: A tine portion of an implantable medical device includes a hook segment and a distal segment terminated by a tissue-piercing tip, wherein the distal segment extends from a distal end of the hook segment to the tip. The hook segment, which is elastically deformable from a pre-set curvature, for example, defined by a single radius, preferably tapers from a first width thereof, in proximity to a proximal end thereof, to a smaller, second width thereof, in proximity to the distal end thereof, wherein the tip has a width that is greater than the second width of the hook segment. Alternately, the tine portion may include a hook segment that is defined by two radii and a straight section extending therebetween.