US 10,376,708 B2
Bone enhancement device and method
Moshe Neuman, Ramat-Gan (IL); Roni Daffan, Jerusalem (IL); and Joseph Shechter, Holon (IL)
Assigned to Magdent Ltd., Bnei-Brak (IL)
Filed by Magdent Ltd., Ramat-Gan (IL)
Filed on Sep. 27, 2017, as Appl. No. 15/716,602.
Application 15/716,602 is a division of application No. 14/398,520, granted, now 9,776,014, previously published as PCT/IL2013/050370, filed on May 2, 2013.
Claims priority of provisional application 61/641,995, filed on May 3, 2012.
Prior Publication US 2018/0015295 A1, Jan. 18, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 2/00 (2006.01); A61C 8/02 (2006.01); A61N 2/02 (2006.01); A61C 13/00 (2006.01); A61C 1/00 (2006.01)
CPC A61N 2/02 (2013.01) [A61C 8/0006 (2013.01); A61C 8/0007 (2013.01); A61C 13/001 (2013.01); A61C 13/0012 (2013.01); A61C 13/0015 (2013.01); A61N 2/004 (2013.01); A61C 1/0015 (2013.01); A61C 2204/005 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An energy saving circuit configured for electro-magnetic orthopedic therapy, said circuit comprising:
a coil arranged to produce an orthopedic therapeutic electro-magnetic field;
a capacitor in series with said coil;
one or more switches in series with said capacitor; and
a controller to:
control said switches to maintain said capacitor at a first voltage value during a non-pulse phase, wherein no electro-magnetic field is produced,
control said switches to charge said capacitor to a second voltage value, said second voltage value equal to said first voltage value, said second voltage value having a charge opposite to said first voltage value; and
control said switches to further charge said capacitor from said second voltage value back to said first voltage value, said further charging occurring over a time period of a pulse phase, wherein said charging and said further charging said capacitor comprises passing a current through said coil to produce said electro-magnetic field, said current related to a voltage drop across said coil of about two times said first voltage value.