公开(公告)号：US10463853B2

公开(公告)日：2019-11-05

申请号：US15410085

申请日：2017-01-19

Applicant: Medtronic, Inc.

Inventor： Ronald A Drake ,  Xin Chen ,  Michael D Eggen ,  Matthew D Bonner ,  Vladimir Grubac ,  Brian P Colin ,  Kenneth C Gardeski ,  Kevin R Seifert

IPC: A61N1/05 ,  A61N1/368 ,  A61B5/00 ,  A61N1/375 ,  A61N1/362 ,  A61N1/372

Abstract: An implantable medical device includes ventricular and atrial portions, and a flexible leadlet that extends therebetween. An open channel of the atrial portion, formed along a core thereof, is sized to receive the leadlet therein, when the leadlet is folded over on itself. An interventional medical system includes the device and a delivery tool; a tubular sidewall of the tool defines a lumen and has a tether extending therein. A slot formed in the sidewall extends proximally from an open end thereof, coincident with a distal opening of the lumen. When the atrial portion is contained within the lumen, a segment of the leadlet extends alongside the atrial portion; another segment of the leadlet, being folded over on itself, proximal to the atrial portion, has the tether engaged therewith. The slot may allow passage of the leadlet therethrough, when the atrial portion is positioned for deployment through the distal opening.

公开(公告)号：US10448971B2

公开(公告)日：2019-10-22

申请号：US15387224

申请日：2016-12-21

Applicant: Medtronic, Inc.

Inventor： Ronald A Drake ,  Matthew D Bonner ,  Trent M Fischer ,  Brian P Colin ,  Lester O Stener

IPC: A61B17/34 ,  A61M25/06 ,  A61N1/05 ,  A61N1/375 ,  A61B17/00 ,  A61M29/00 ,  A61N1/372

Abstract: An apparatus for forming a passageway through tissue includes a dilator mounted to a shaft, wherein the dilator includes a first portion, which has an increasing taper from a first outer diameter to a larger second outer diameter, and a second portion, which has a decreasing taper from the first portion to a distal end of the dilator, and which includes an external non-cutting thread formed along the decreasing taper. Lumens of the dilator and shaft provide a conduit for means to pierce through the tissue, for example, an elongate wire that includes a piercing tip. In some cases, the dilator first portion is expandable to, and contractible from, the larger second outer diameter, wherein the apparatus may include a spreading member configured to slide between the shaft and the first portion. The apparatus may be included in a system with an introducer sheath.