Good luck finding good information
Read all about it:
https://patentscope.wipo.int/search/en/detail.jsf?docId=US243316678&tab=NATIONALBIBLIO
"SUMMARY OF THE DISCLOSURE
Ultraviolet light is invisible and non-ionizing segment of light spectrum that is divided into three spectrums: (1) UV-A (320 to 400 nm), (2) UV-B (280 to 320 nm), and (3) UV-C (110 to 280 nm). All these components are present in sunlight but UV-C is almost fully absorbed by ozone layer and does not reach the earth surface. UV-A and UV-B are involved in the formation of Vitamin D in human skin. Although UV-C light is traditionally used for disinfection of non-organic surfaces (e.g. hospital rooms, aquariums, air vents, and the like), UV-A and UV-B light have significant anti-inflammatory and antibiotic effects as well. The antibiotic effects of UV-A and UV-B light is induced via damage to haploid DNA/RNA of microorganisms such as bacteria, archaea, fungi, yeast and viruses within minutes. UV light is even capable of stopping the disease process in prion-related diseases that currently has no cure.
However, mammalian diploid DNA is significantly more resistant to such damage. For example, it takes decades of direct sun exposure for select individuals with relevant gene susceptibility and skin type to develop precancerous skin lesions. UV phototherapy is widely being used in management of skin diseases, such as, for example, psoriasis, vitiligo, atopic dermatitis, eczema, Kaposi sarcoma, lichen planus, skin lymphoma, neonatal jaundice, and the like. Such process has been proposed and used as adenomatous polyp detection tool on colonoscopy and also has been proposed in conjunction with a super glue for closing patent foramen ovale.
Considering the anti-inflammatory and antibiotic effects of UV-A and UV-B light, it has the potential to revolutionize the management of non-dermatologic (i.e., internal organs) infections and inflammatory diseases. While UV light has traditionally been used to treat skin disorders, it has not yet been developed for broader infection or inflammation treatment in vivo.
Accordingly, a system has been developed as described herein for emission of therapeutic doses of UV light using vehicles, such as, for example, a catheter, capsule, endoscope, tube or port, for treating or managing internal infections and/or inflammatory conditions inside a patient. For instance, in some examples, the inventors developed devices that can deliver therapeutic doses of UV light in the UV-AB range from a catheter, endoscope, capsule, or other device to treat infections and inflammatory conditions inside the patient.
In another instance, a system utilizing LEDs or a cold cathode emission that can emit light to cover a broad area inside the body has been developed. Accordingly, these systems may emit UV-A and/or UV-B light emitted from a catheter, endoscope, or other device inside the body to treat or manage infections or inflammatory conditions. "
Looks like it will be awhile though.