Apparatus for pre-surgical skin treatment

An apparatus for pre-surgical skin treatment comprising:

• an array of LEDs providing 415 nm blue light over an area of at least 50 square centimeters and positionable to treat a patient's skin at a skin area;
• a light sensor positionable adjacent to the skin of the skin area to receive and integrate 415 nm of blue light received by the skin from the array of LEDs to provide a dose measurement of received light and provide an output indicating when a required dose of at least 50 joules per square centimeter has been received at a desired treatment time;
• a timer for measuring elapsed time and having a predetermined maximum time limit greater than the desired treatment time;
• an electrical switching circuit communicating with a single activation operator operable only once to connect the array of LEDs to the power, wherein the switching circuit responds to the single activation operator to set an integration of dose and the timer to zero only once, and wherein the electrical switching circuit operates to disconnect the array of LEDs from the power in both cases when either:
• the output indicates the required dose has been exceeded or the timer has reached the predetermined time limit;
• wherein the output is adapted to remain unchanged after the switching circuit disconnects the array of LEDs;
• and
• further including a human readable display receiving the output and indicating the required dose has been obtained.