Patent ID: 6238424
Filing Date: 2001-05-29
Classification: A61N

Abstract:
Apparatus for external medical treatment with light, said apparatus comprising: a light-emitting device which is adapted to be held in close proximity to the body of an individual to be treated, wherein the light-emitting device includes light-emitting elements for emitting monochromatic light of substantially only one wavelength during a predetermined time interval, and drive means for driving the light-emitting device, wherein the drive means includes means for controlling the light-emitting device to emit said monochromatic light of substantially only one wavelength over a predetermined treatment time period, and wherein the drive means includes means for controlling the light-emitting device to pulsate said emitted monochromatic light of substantially only one wavelength in accordance with a predetermined pulse frequency over said time period, and wherein the drive means includes means for controlling said light-emitting devices to emit said pulsating monochromatic light of substantially only one wavelength with a pulse length that lies within an interval of about 67% to about 88% of the time between respective start edges of two mutually sequential pulses.