Patent ID: 8968281
Filing Date: 2015-03-03
Classification: A61B,A61N

Abstract:
1. A laser device for treating skin comprising: a handholdable housing with a first end and a second end; a laser member arranged within the housing and emitting an output beam; a capacitance sensor arranged at the first end of the housing comprising a plate formed as an annular ring surrounding and defining a window through which the output beam exits, the plate having at least three segments having a gap of 1-20 mil therebetween, with each segment being flexibly and independently movable in and out of a common plane, each of the segments being connected to an electrode, the electrodes operating to determine dielectric constant of a skin surface; and a signal and control storage device communicating with the sensor comparing input signals of measured dielectric constant values to a stored standard dielectric constant value; wherein the signal and control storage device is a printed circuitboard; wherein emission of the output beam is activated to fire only when all of the at least three segments align in a plane and sense the stored standard dielectric constant value; and wherein the gap of the plate comprises a non-electrical conductive material.