公开(公告)号：US09937352B2

公开(公告)日：2018-04-10

申请号：US14920228

申请日：2015-10-22

Applicant: Medtronic, Inc.

Inventor： Todd J Sheldon ,  Wade M Demmer ,  Eric R Williams

IPC: A61N1/365 ,  A61N1/375 ,  A61B5/11 ,  A61B5/00 ,  A61N1/372

CPC classification number: A61N1/36585 ,  A61B5/1116 ,  A61B5/1121 ,  A61B5/4836 ,  A61N1/36535 ,  A61N1/36542 ,  A61N1/37205 ,  A61N1/3756

Abstract: An implantable rate responsive pacemaker includes a sensor module configured to produce an activity signal correlated to a metabolic demand of a patient and a posture signal correlated to patient posture. The pacemaker further includes a pulse generator configured to generate and deliver pacing pulses to a patient's heart via a pair of electrodes coupled to the pacemaker. A control module is coupled to the pulse generator and the sensor module and is configured to determine a sensor indicated pacing rate from the activity signal, compare the posture signal to verification criteria for confirming an exercising posture of the patient, and withhold an adjustment of a pacing rate to the sensor indicated pacing rate responsive to the verification criteria not being met.

公开(公告)号：US09616238B2

公开(公告)日：2017-04-11

申请号：US14256133

申请日：2014-04-18

Applicant: Medtronic, Inc.

Inventor： Wade M Demmer ,  James D Reinke ,  Todd J Sheldon ,  Eric R Williams

IPC: H02J7/00 ,  A61N1/37 ,  G01R31/36 ,  A61N1/362 ,  H01M10/48

CPC classification number: A61N1/3708 ,  A61N1/362 ,  G01R31/3606 ,  G01R31/3648 ,  G01R31/3679 ,  H01M10/48

Abstract: A method and apparatus for determining estimated remaining longevity for an implantable stimulator. The device employs pre-calculated numbers of days for various combinations conditions of device usage parameters to determine remaining device longevity based upon identified actual conditions of device usage and employs the determined longevity to change longevity indicator states in the device. While between longevity state changes, the device the identified conditions of device usage and adjusts the determined longevity if the conditions of use change significantly. The indicator states may correspond to one or more of Recommended Replacement Time (RRT), Elective Replacement Indicator (ERI) or End of Service (EOS).