Phototherapy method and device

A method of bio-stimulating using a phototherapy device,

• the method comprising:
• controlling, by a controller, at least one light source to illuminate a subject's body portion with light having a first wavelength in a range of 600-900 nm, and illuminate the body portion with light having a second wavelength within one of ranges of:
• 400-600 nm and 900-2500 nm,
• determining, by the controller, a melanin-index dependent irradiance correction factor associated with skin of the subject's body portion based on a concentration of melanosomes in the body portion, a wavelength dependent absorption of melanin and an optical path of light in the body portion,
• adjusting, by the controller, at least one of:
• an intensity and a dose of the light of at least one of:
• the first wavelength and the second wavelength based on the melanin-index dependent irradiance correction factor,
• monitoring by the controller communicating with a thermal sensor, a temperature of the skin of the body portion;
• and
• adjusting the illumination of the second light based on the monitored temperature, wherein the second light is operated with the second wavelength to provide superficial heating of the body portion dependent on the temperature of the body portion.

A computer-readable storage-medium that is not a transitory propagating signal or wave, the medium comprising control instructions for controlling an operation of a phototherapy device for bio-stimulation of skin, the instructions comprising:

• illuminating, via one or more first light sources, a body portion with light having a first wavelength in a range of 600-900 nm;
• illuminating, via one or more second light sources, the body portion with light having a second wavelength, the second wavelength within one of ranges of:
• 400-600 nm, and 900-2500 nm;
• determining via a controller, melanin-index dependent irradiance correction factor based on a concentration of melanosomes in the body portion, a wavelength dependent absorption of melanin and an optical path in the body portion;
• and
• determining via the controller, a first intensity, associated with the first wavelength, and a second intensity, associated with the second wavelength, based on the determined melanin-index dependent irradiance correction factor;
• monitoring by the controller via a thermal sensor, a temperature of the illuminated body portion;
• and
• adjusting via the controller, at least one of the second intensity and a dose of the light having the second wavelength to operate at the second wavelength providing superficial heating of the body portion in response to the monitored temperature of the body portion.

A phototherapy device for bio-stimulating skin, and comprising:

• a controller configured to control at least one light source to illuminate a subject's body portion with light having a first wavelength in a range of 600-900 nm, and illuminate the body portion with light having a second wavelength within one of ranges of:
• 400-600 nm and 900-2500 nm,
• the controller configured to determine a melanin- index dependent irradiance correction factor associated with skin of the subject's body portion based on a concentration of melanosomes in the body portion, a wavelength dependent absorption of melanin and an optical path of light in the body portion,
• the controller configured to adjust at least one of:
• an intensity and a dose of the light of at least one of:
• the first wavelength and the second wavelength based on the melanin-index dependent irradiance correction factor,
• a thermal sensor configured for sensing the skin temperature of the body portion
• the controller configured to communicate with a thermal sensor for monitoring the temperature of the skin of the body portion;
• and
• the controller configured to adjust the illumination of the second light based on the monitored temperature, wherein the second light is operated with the second wavelength to provide superficial heating of the body portion depending on the temperature of the body portion.