After Rox Anderson put forward the photothermal selective effect in 1984, Goldman and Eckhouse described the possibility of intense pulsed light in 1990 to treat vascular diseases.

1) 1994, the earliest IPL machine of photoderm was first used for vascular treatment. Because there is only a single pulse, the surrounding skin tissues will compete for absorption after emission, and the skin protection is not good. There will be various side effects, such as pigmentation. To sum up, long-term effectiveness has risks, and short-term risk-free but ineffective.

2) Vascu's earliest thought of three pulses. That is, a complete pulse is divided into three sub-pulses. While gradually heating the target tissue, it provides cooling time for surrounding normal tissues and protects normal skin. However, due to the limited technical conditions at that time, the device was not turned off and the three pulses were separated, but it was not allowed, so the treatment was still very risky. ?

3) In 2000, the epoch-making intense pulsed light technology appeared, and the pulse was independently adjustable. The number of pulses, pulse width and pulse delay are adjustable and accurate. The representative equipment is Quantum/Qizhi's IPL Queen Photon. ? The shortcomings were technically achieved in those years, but the doctor did not have a corresponding treatment reference plan and needed the doctor to touch it a little bit. Up to now, the third generation photon technology is still widely used, but the scheme has matured a lot, which is a summary of the blood and tears of previous doctors.

4) In 2003, OPT technology appeared. The core of OPT technology is to emphasize that its multiple sub-pulses are flush, the cap-shaped spots are flat, and the energy is strong, which can instantly blacken the spots or gray blood vessels. For equipment with OPT, it is necessary to supplement and strengthen heat dissipation, otherwise the side effects will be very serious. The patient has intense pain. ?

5)2065 438+00 put forward the concept of sub-pulse train, that is, step heating is realized with more than three sub-pulses. However, there are two problems: the total pulse width of 1 is too short, and the energy of two sub-pulses is decreasing. When the total pulse width is too short, squeezing too many sub-pulses into a relatively short total pulse width can not completely dissipate heat to the surrounding tissues, which is actually equivalent to a single one. The realization of this total pulse is not difficult in the device, which is equivalent to the natural discharge of the capacitor. ?

6)2065 438+05 proposed a new generation of sub-pulses. Different from the previous generation of sub-pulses, the total pulse width can be expanded, and the number, energy and interval (heat dissipation time) of sub-pulses can be adjusted by the system. The characteristics of BB lamp will be introduced in detail below.