Indeed light coherence is dissipated by a few millimeters of tissue depth (Djibladze, Kolari 1985, 1993, Sroka).īecause of their high power, lasers were initially used in medicine to cut, burn, vaporize, and weld tissue (Abergel, Hall).
Some of the features that separate lasers and monochromatic other light sources, e.g., coherence, may not be clinically significant (Karu 1985, 1987, 1989, Lobko, Young). They also have more power and power density. Unlike LEDs, true lasers produce light that is collimated (tightly focused) and coherent (in-phase waves). Later devices employed aluminum gallium arsenide (GaAlAs). The first LEDs were red and infrared light using gallium arsenide. LEDs consist of a chip of semiconducting material that is impregnated with impurities to create a junction for donor electrons and to permit electron current flow (Dupuis). Subsequently, non-laser based monochromatic light sources were developed: light emitting diodes (LEDs), supraluminous diodes (SLDs), and polarized polychromatic light. This laser utilized gallium arsenide (GaAs) and produced infrared light (850 nm). Robert Hall developed the first semiconductor laser (or laser diode) based on work by Nikolay Basov (Soviet Union) and Ali Javan (Iran) (Dupuis, Hall). This ruby laser produced red light with the unique wave length, 694 nm (nanometers). The first operational laser (Light Amplification by Stimulated Emission of Radiation) was developed in 1960 by Theodore Maiman based on work by Charles Townes and Arthur Schawlow (United States) as well as Alekxandr Prokhorov and Nikolay Basov (Soviet Union) (Goldman L, Maiman). (Additional discussion of a more technical nature is included in Appendix E.)Ī. Therapy for a medical condition includes therapy for the symptoms and signs of the condition as well as therapy intended to alter the underlying pathologic process. We then identify medical conditions for which infrared therapy has been employed, and summarize the pathophysiology epidemiology, societal burden, and standard therapies for these medical conditions. In this section, we describe the technologic developments that gave rise to infrared therapy and discuss the putative mechanisms.
#Blueprint pro unit for red light therapy skin
The use of infrared and/or near-infrared light and/or heat, including monochromatic infrared energy (MIRE), is not covered for the treatment, including symptoms such as pain arising from these conditions, of diabetic and/or non-diabetic peripheral sensory neuropathy, wounds and/or ulcers of skin and/or subcutaneous tissues in Medicare beneficiaries. Therefore, we are issuing the following National Coverage Determination. Subject: Decision Memorandum for Infrared Therapy DevicesĬMS has determined that there is sufficient evidence to conclude that the use of infrared devices is not reasonable and necessary for treatment of Medicare beneficiaries for diabetic and non-diabetic peripheral sensory neuropathy, wounds and ulcers, and similar related conditions, including symptoms such as pain arising from these conditions.
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