FIBEROPTIC FOR MEDICAL APPLICATIONS

Medical treatment devices for treating a tissue are disclosed. The medical treatment devices may comprise an optical fiber with a treatment section as well as an illumination source configured to deliver electromagnetic radiation through the optical fiber to apply a specified treatment. The treatment section may comprise at least one element with a refractive index that may be different from a refractive index of the optical fiber and/or may be same as the refractive index of the optical fiber. A spatial configuration of the optical and the at least one element within the treatment section of the medical treatment device and/or optical properties of the optical fiber and/or the at least one element may determine an emission region through the treatment section. The emission region may be radial (or at least have a radial component) with respect to a cross-section of the optical fiber.