US 12,434,064 B2
Inductive charging coil configuration for an implantable medical device
Gabriel Amilcar Barbat, Ciudad de la Costa (UY)
Assigned to Greatbatch Ltd., Clarence, NY (US)
Filed by Greatbatch Ltd., Clarence, NY (US)
Filed on Aug. 1, 2022, as Appl. No. 17/878,330.
Claims priority of provisional application 63/227,481, filed on Jul. 30, 2021.
Prior Publication US 2023/0032945 A1, Feb. 2, 2023
Int. Cl. A61N 1/378 (2006.01); A61B 5/00 (2006.01); A61N 1/05 (2006.01); H02J 50/12 (2016.01); H02J 50/90 (2016.01)
CPC A61N 1/3787 (2013.01) [A61B 5/0022 (2013.01); A61N 1/05 (2013.01); H02J 50/12 (2016.02); H02J 50/90 (2016.02); A61B 2560/0214 (2013.01); A61B 2562/166 (2013.01); H02J 2310/23 (2020.01)] 21 Claims
OG exemplary drawing
 
1. An active implantable medical device (AIMD), comprising:
a) an elongate, non-conductive enclosure extending along a first longitudinal axis;
b) a printed circuit board (PCB) assembly housed inside the elongate, non-conductive enclosure, the PCB assembly comprising an elongate PCB extending along a second longitudinal axis and supporting at least one electronic component, wherein the elongate PCB comprises spaced apart upper and lower surfaces that define a PCB thickness and that meet spaced apart first and second relatively long edges, and wherein the upper and lower surfaces and the first and second long edges extend to and meet with opposed third and fourth relatively short ends with the first and second edges spaced from the second longitudinal axis and being longer than the third and fourth ends;
c) a rechargeable electrical power source electrically connected to the PCB assembly;
d) an inductive charging coil housed inside the elongate, non-conductive enclosure and being configured to convert inductive charging signals into inductive energy, wherein the inductive charging coil extends along the second longitudinal axis of the PCB and comprises at least one wind of an electrically conductive material, the at least one wind having an upper wind portion residing above the second longitudinal axis and above the upper surface of the PCB, a lower wind portion residing below the second longitudinal axis and below the lower surface of the PCB, and continuous opposed curved wind ends that intersect the second longitudinal axis as they wrap around the opposed third and fourth relatively short ends of the elongate PCB; and
e) a charging circuit housed inside the elongate, non-conductive enclosure, wherein the charging circuit is configured to convert inductive energy received from the inductive charging coil into a direct current voltage to charge the rechargeable electrical power source to power the PCB assembly.