公开(公告)号：US09974964B2

公开(公告)日：2018-05-22

申请号：US14797651

申请日：2015-07-13

Applicant: Medtronic, Inc.

Inventor： Gonzalo Martinez ,  Mark T Marshall ,  Kevin R Seifert

IPC: A61N1/00 ,  A61N1/37 ,  A61N1/39 ,  A61N1/365 ,  A61N1/362 ,  A61N1/368 ,  A61N1/04 ,  A61N1/08 ,  A61B5/0215 ,  A61N1/05

CPC classification number: A61N1/3712 ,  A61B5/0215 ,  A61B2560/0276 ,  A61N1/04 ,  A61N1/0563 ,  A61N1/3628 ,  A61N1/36592 ,  A61N1/368 ,  A61N1/3706 ,  A61N1/3931 ,  A61N1/3937 ,  A61N1/3962 ,  A61N2001/0585 ,  A61N2001/083

Abstract: The disclosure describes implantable medical systems that respond to occurrence of a lead-related condition by utilizing an elongated coil electrode in defining an alternative pacing therapy vector to maintain optimal drain of an IMD power supply. An exemplary system includes a medical electrical lead having an elongated electrode and an improved sensing and therapy delivery circuitry to provide the alternative pacing therapy vector responsive to the lead-related conditions. The system reconfigures the operation of the sensing and therapy delivery circuitry triggered by the switch to the alternative pacing therapy vector.