公开(公告)号：US10238865B2

公开(公告)日：2019-03-26

申请号：US15287122

申请日：2016-10-06

Applicant: Medtronic, Inc.

Inventor： Matthew D Bonner ,  Raymond W Usher ,  Teresa A Whitman ,  Jean M Carver ,  Kathryn Hilpisch

IPC: A61N1/05 ,  A61N1/375 ,  A61N1/372 ,  A61B17/34

Abstract: An implantable medical device assembly includes a mounting structure, an electrode protruding from a surface of the structure, between opposing sides thereof, and tissue-penetrating fixation tines, each extending from a corresponding shoulder of the structure surface, adjacent to the opposing sides. In a relaxed condition, each tine extends away from the surface and then bends toward a proximal end of the structure and back toward the surface. In an extended condition, each tine bends toward a distal end of the structure and extends along the corresponding shoulder. A holding member of a delivery tool has opposing sidewalls defining a cavity, wherein each sidewall includes a rail-like edge that fits in sliding engagement with a corresponding shoulder, to deform a corresponding tine into the extended condition, when an operator passes the assembly into the cavity. Applying a push force, to move the assembly back out form the cavity, releases the tines.

公开(公告)号：US10328257B2

公开(公告)日：2019-06-25

申请号：US15336284

申请日：2016-10-27

Applicant: Medtronic, Inc.

Inventor： Teresa A Whitman ,  Matthew D Bonner ,  Jean M Carver ,  Raymond W Usher

IPC: A61N1/05 ,  A61B17/34 ,  A61N1/375 ,  A61N1/362

Abstract: An implantable medical device assembly includes a mounting structure, an electrode, and fixation tines. The electrode protrudes from a surface of the structure, offset proximally from a distal end of the structure, and approximately centered between first and second sides of the structure. Each tine extends away from the surface—a first adjacent the first side, and a second adjacent the second side. Each tine is elastically deformable from a relaxed condition, in which the tine extends toward a proximal end of the structure, to an extended condition, in which the tine extends away from the distal end of the structure. A delivery tool has first and second longitudinally extending sidewalls to receive passage of the structure therebetween. When the structure distal end is located between proximal ends of the sidewalls, a rail-like edge of each sidewall receives, and elastically deforms to the extended condition, a corresponding tine.

公开(公告)号：US08948883B2

公开(公告)日：2015-02-03

申请号：US13869509

申请日：2013-04-24

Applicant: Medtronic, Inc.

Inventor： Michael D Eggen ,  Zhongping Yang ,  Rick D McVenes ,  Noelle C Hurtig ,  Raymond W Usher

IPC: A61N1/05

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

Abstract: A fixation member of an electrode assembly for an implantable medical device includes a tissue engaging portion extending along a circular path, between a piercing distal tip thereof and a fixed end of the member. The circular path extends around a longitudinal axis of the assembly. A helical structure of the assembly, which includes an electrode surface formed thereon and a piercing distal tip, also extends around the longitudinal axis and is located within a perimeter of the circular path. The tissue engaging portion of the fixation member extends from the distal tip thereof in a direction along the circular path that is the same as that in which the helical structure extends from the distal tip thereof. The electrode assembly may include a pair of the fixation members, wherein each tissue engaging portion may extend approximately one half turn along the circular path.

Abstract translation: 用于可植入医疗装置的电极组件的固定构件包括沿圆形路径延伸的组织接合部分，其穿孔远端和构件的固定端之间。 圆形路径围绕组件的纵向轴线延伸。 包括其上形成的电极表面和穿刺的远端的组件的螺旋结构也围绕纵向轴线延伸并且位于圆形路径的周边内。 固定构件的组织接合部分沿着与其螺旋结构从其远端延伸的方向相同的圆形路径的方向从其远端延伸。 电极组件可以包括一对固定构件，其中每个组织接合部分可以沿着圆形路径延伸约一半匝。

公开(公告)号：US09844659B2

公开(公告)日：2017-12-19

申请号：US14193306

申请日：2014-02-28

Applicant: Medtronic, Inc.

Inventor： Vladimir Grubac ,  Matthew D Bonner ,  Raymond W Usher ,  Thomas A Anderson ,  Arshad A. Alfoqaha

IPC: A61N1/05 ,  A61N1/375

CPC classification number: A61N1/05 ,  A61N1/0573 ,  A61N1/37518 ,  A61N1/3756

Abstract: Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.

公开(公告)号：US09517336B2

公开(公告)日：2016-12-13

申请号：US14611838

申请日：2015-02-02

Applicant: Medtronic, Inc.

Inventor： Michael D Eggen ,  Zhongping Yang ,  Rick D McVenes ,  Noelle C. Hurtig ,  Raymond W Usher

IPC: A61N1/05 ,  A61N1/372

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

Abstract: A fixation member of an electrode assembly for an implantable medical device includes a tissue engaging portion extending along a circular path, between a piercing distal tip thereof and a fixed end of the member. The circular path extends around a longitudinal axis of the assembly. A helical structure of the assembly, which includes an electrode surface formed thereon and a piercing distal tip, also extends around the longitudinal axis and is located within a perimeter of the circular path. The tissue engaging portion of the fixation member extends from the distal tip thereof in a direction along the circular path that is the same as that in which the helical structure extends from the distal tip thereof. The electrode assembly may include a pair of the fixation members, wherein each tissue engaging portion may extend approximately one half turn along the circular path.