US 12,083,349 B2
Methods and systems for frequency adjustment to optimize charging of implantable neurostimulator
Rabih Nassif, Santa Ana, CA (US); Steve Hankins, San Diego, CA (US); and Christopher J. Bowes, Laguna Hills, CA (US)
Assigned to AXONICS, INC., Irvine, CA (US)
Filed by Axonics, Inc., Irvine, CA (US)
Filed on Feb. 17, 2023, as Appl. No. 18/111,524.
Application 16/752,539 is a division of application No. 15/416,888, filed on Jan. 26, 2017, granted, now 10,603,500, issued on Mar. 31, 2020.
Application 18/111,524 is a continuation of application No. 17/365,835, filed on Jul. 1, 2021, granted, now 11,602,638.
Application 17/365,835 is a continuation of application No. 16/752,539, filed on Jan. 24, 2020, granted, now 11,083,903, issued on Aug. 10, 2021.
Claims priority of provisional application 62/289,073, filed on Jan. 29, 2016.
Prior Publication US 2023/0277859 A1, Sep. 7, 2023
Int. Cl. H02J 7/00 (2006.01); A61N 1/36 (2006.01); A61N 1/378 (2006.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01)
CPC A61N 1/3787 (2013.01) [A61N 1/3605 (2013.01); H02J 7/0071 (2020.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02); A61N 1/36007 (2013.01); A61N 1/36107 (2013.01); H02J 7/00034 (2020.01)] 24 Claims
OG exemplary drawing
 
1. A neurostimulation system for delivering one or more electrical pulses to a target region, the neurostimulation system comprising:
an implantable neurostimulator comprising:
a housing configured to be implanted within a body of a patient; and
a first charging circuit configured to receive power through the housing for charging the implantable neurostimulator; and
a charger for coupling with the implantable neurostimulator, the charger comprising:
a second charging circuit configured to transfer power to the first charging circuit; and
a processor coupled to the second charging circuit, wherein the processor is configured to adjust a natural frequency of the second charging circuit based on charging efficiency feedback to correspond to a natural frequency of the first charging circuit.