Laser dermatology with feedback control
    24.
    发明授权
    Laser dermatology with feedback control 失效
    激光皮肤科与反馈控制

    公开(公告)号:US6015404A

    公开(公告)日:2000-01-18

    申请号:US759036

    申请日:1996-12-02

    摘要: Method and apparatus are provided for use with systems applying laser energy to treat a selected dermatology problem. The method and apparatus protect skin not under treatment in skin regions affected by the laser by detecting, with a suitable sensor, at least a selected parameter in the skin region affected by the delivered laser energy and performing a control function to effect the desired protection by use of a feedback mechanism which is operative in response to an output from the sensor. For some embodiments, two laser pulses may be utilized, which pulses are spaced by a time which is preferably greater than the thermal relaxation time for affected regions not under treatment, for example an epidermis through which the energy is passed to an area under treatment, but is less than the thermal relaxation time of the area under treatment. The first of the pulses serves as a prediagnosis pulse which is clearly below the damage threshold for protected areas, with the sensor output for the first pulse being utilized to control at least one parameter of the second pulse.

    摘要翻译: 提供了与应用激光能量以处理选定的皮肤病学问题的系统一起使用的方法和装置。 所述方法和装置通过用合适的传感器检测受所传送的激光能量影响的皮肤区域中的至少一个选定参数,并且通过检测由所传送的激光能量产生的所需保护来执行控制功能来保护受激光影响的皮肤区域中的皮肤不受治疗 使用响应于来自传感器的输出操作的反馈机构。 对于一些实施例,可以使用两个激光脉冲,这些脉冲间隔一段时间,该时间优选地大于未处理的受影响区域的热松弛时间,例如通过该表皮将能量传递到处理区域的表皮, 但小于处理区域的热松弛时间。 脉冲中的第一个用作预定义脉冲,其明显低于受保护区域的损伤阈值,第一脉冲的传感器输出用于控制第二脉冲的至少一个参数。