Study for increase of Light Transmission by applying Pressure

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Laser has been applied in various diagnostic and therapeutic medical fields. For last few decades, medical low-level laser devices have been introduced in market, but they have limitations which cannot convey enough energy to deep layer of tissues for diagnostic or therapeutic purposes. To address the issue, there have been many studies of using physical and chemical methods; it is one of ways to apply negative or positive pressure to tissue. However, it is hard to apply desired pressure on tissues continuously when practical laser devices arc used. In this study, we introduce a low-level laser probe which allows maintain pressure on skin tissue. Consequently, we are confident that the pressure probe for low-level laser treatment should be a useful tool in order to deliver sufficient energy for practical uses.