US 12,239,845 B2
Phototherapeutic apparatus for focused UVB radiation and vitamin D synthesis and associated systems and methods
William A. Moffat, IV, Bainbridge Island, WA (US)
Assigned to BENESOL, INC., Bainbridge Island, WA (US)
Filed by BeneSol, Inc., Bainbridge Island, WA (US)
Filed on May 10, 2021, as Appl. No. 17/315,682.
Application 16/262,682 is a division of application No. 13/733,860, filed on Jan. 3, 2013, granted, now 10,226,641, issued on Mar. 12, 2019.
Application 17/315,682 is a continuation of application No. 16/262,682, filed on Jan. 30, 2019, granted, now 11,007,376.
Claims priority of provisional application 61/582,778, filed on Jan. 3, 2012.
Prior Publication US 2021/0260402 A1, Aug. 26, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 5/06 (2006.01)
CPC A61N 5/0616 (2013.01) [A61N 5/0613 (2013.01); A61N 2005/0615 (2013.01); A61N 2005/0627 (2013.01); A61N 2005/064 (2013.01); A61N 2005/0652 (2013.01); A61N 2005/0654 (2013.01); A61N 2005/0655 (2013.01); A61N 2005/0661 (2013.01); A61N 2005/0665 (2013.01); A61N 2005/0667 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A phototherapeutic apparatus, comprising:
an ultraviolet (UV) radiation assembly comprising:
a UV radiation source carried by a housing; and
a reflector positioned forward of the UV radiation source to direct UV energy emitted by the UV radiation source forward toward an irradiation zone, the UV energy contacting the reflector forward of the UV radiation source,
wherein the UV radiation source is configured to emit UV radiation having wavelengths between 290 nm and 310 nm to stimulate vitamin D production in skin; and
a controller communicatively coupled to the UV radiation source and configured to cause the phototherapeutic apparatus to limit UV radiation of the phototherapeutic apparatus to less than a user-specific minimum erythemal dose (“MED”) based on a skin tone associated with a user in the irradiation zone by adjusting a duration of an exposure period.