公开(公告)号：US11027124B2

公开(公告)日：2021-06-08

申请号：US15264375

申请日：2016-09-13

Applicant: Medtronic, Inc.

Inventor： Ronald A Drake ,  Keith D Anderson ,  Kenneth C Gardeski ,  Dina L Williams

IPC: A61N1/05 ,  A61B17/00 ,  A61B17/50 ,  A61N1/372 ,  A61B17/221 ,  A61N1/375 ,  A61N1/362

Abstract: A tool operable with a catheter in an interventional medical system retrieves a medical device from an implant site, wherein the device includes an attachment feature that forms an annular recess to be engaged by a lasso of the tool for snaring the device, and a distal-most sidewall of the catheter defines a receptacle into which the snared device is retrieved. A guide of the tool includes a sidewall defining a lumen in which the lasso extends for deployment out from a distal opening thereof, to snare and retrieve the implanted device. The sidewall establishes a radial offset between the guide lumen distal opening and the distal-most sidewall of the catheter, when the guide lumen distal opening and a distal opening of the receptacle are located in close proximity to one another, which radial offset is greater than a length of the annular recess formed by the device attachment feature.