公开(公告)号：US20210023373A1

公开(公告)日：2021-01-28

申请号：US16520052

申请日：2019-07-23

Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.

Inventor： Daran DeShazo ,  Steven Boor ,  Gavin L. Rade

IPC: A61N1/36 ,  A61N1/378

Abstract: An implantable medical device (IMD) includes an adjustable capacitive voltage multiplier (CVM) that is responsive to diagnostic circuitry configured to provide control signals within a single stimulation current pulse for adjusting the voltage output applied to an electrode of the IMD's lead system. A control counter is coupled to the diagnostic circuitry for incrementing or decrementing an N-bit counter output signal operative to reconfigure a charge pump arrangement of the CVM so as to facilitate an adjusted voltage output.

公开(公告)号：US20200155851A1

公开(公告)日：2020-05-21

申请号：US16195502

申请日：2018-11-19

Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.

Inventor： Steven Boor ,  Daran DeShazo

IPC: A61N1/36 ,  A61N1/05

Abstract: A Kelvin connection scheme, apparatus and method for effectuating residual voltage measurements with respect to one or more electrodes of a lead system associated with an implantable medical device (IMD). In one example implementation, terminals of at least one DC blocking stimulation capacitor or at least one AC-coupling sense capacitor associated with at least one inactive electrode of the lead system are used as one Kelvin connection terminal of a measurement circuit path whereas a counter Kelvin connection terminal with respect to a selection of at least one active electrode is effectuated across the electrode/tissue interface using either at least one DC blocking stimulation capacitor or at least one AC-coupling sense capacitor provided therewith.

公开(公告)号：US20200147389A1

公开(公告)日：2020-05-14

申请号：US16189746

申请日：2018-11-13

Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.

Inventor： Steven Boor ,  Daran DeShazo

IPC: A61N1/36 ,  A61N1/378

Abstract: An apparatus and method for providing split stimulation currents in a pulse generator. In one embodiment, a current regulator of the pulse generator includes a digitally-programmable analog voltage generator coupled to a first input of an error amplifier that receives a second input controlled by a programmable resistor network configured to control a programmable total stimulation current output. A plurality of current splitting switches are operative to split the programmable total stimulation current output into a corresponding plurality of split current segments, which may be individually mapped to a selected set of lead electrodes across one or more implantable leads associated with the pulse generator.