US 12,257,449 B2
Intense pulse light (IPL) apparatus utilizing a pulse forming network (PFN)
Moshe Shterzer, Herzliya (IL)
Filed by Moshe Shterzer, Herzliya (IL)
Filed on Aug. 4, 2020, as Appl. No. 16/984,375.
Application 16/984,375 is a continuation of application No. PCT/IL2019/050066, filed on Jan. 16, 2019.
Claims priority of provisional application 62/626,200, filed on Feb. 5, 2018.
Prior Publication US 2020/0360714 A1, Nov. 19, 2020
Int. Cl. A61N 5/06 (2006.01); H01J 61/02 (2006.01); H01J 61/16 (2006.01); H05B 41/34 (2006.01); H05B 41/38 (2006.01); A61B 18/18 (2006.01)
CPC A61N 5/0616 (2013.01) [H01J 61/025 (2013.01); H01J 61/16 (2013.01); H05B 41/34 (2013.01); H05B 41/38 (2013.01); A61B 18/18 (2013.01); A61N 2005/0629 (2013.01); A61N 2005/0654 (2013.01); A61N 2005/0663 (2013.01); A61N 2005/0666 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An intense pulse light (IPL) apparatus utilizing a pulse forming network (PFN) for generating a plurality of light pulse sequences, comprising:
a treatment unit comprising at least one lamp adapted to emit a plurality of light pulses towards a treatment face of the IPL apparatus;
a PFN; and
a control unit adapted to operate the PFN to generate a regulated energized pulse driven to the at least one lamp, the regulated energized pulse having a desired multi-level voltage waveform comprising a plurality of gradually decreasing high voltage level segments having a maximum voltage level and a plurality of low voltage level segments having a minimum voltage level which is in a range of 30-50 percent of the maximum voltage level such that a voltage level of the multi-level voltage waveform never drops below 30 percent of the maximum voltage level, wherein the plurality of gradually decreasing high voltage level segments and the plurality of low voltage level segments are alternating with one another and are immediately succeeding each other, wherein the plurality of gradually decreasing high voltage level segments having collectively a voltage level which gradual decrease thereof is continuous;
wherein rapidly varying heat is induced by a sequence of the plurality of light pulses emitted by the at least one lamp according to the multi-level voltage waveform.