Phototherapeutic needle patches and methods of manufacturing the same

A phototherapeutic needle patch comprising:

• a patch body configured to be attachable to skin of a patient;
• at least one microneedle protruding from the patch body, one end of each of the at least one microneedle configured to deliver a drug through stratum corneum of the skin to inner tissues of the skin;
• light grooves in a concave shape disposed along a length direction of the at least one microneedle in such a manner that therapeutic light radiated from a light source for phototherapy penetrates into the skin along the at least one microneedle;
• and
• slots formed by piercing portions of the patch body and portions of the at least one microneedle in a slot shape and connected to ends of the light grooves in such a manner that the therapeutic light reaches the light grooves formed in the at least one microneedle.

A phototherapeutic needle patch comprising:

• a patch body configured to be attachable to skin of a patient;
• at least one microneedle protruding from the patch body, one end of each of the at least one microneedle configured to deliver a drug through stratum corneum of the skin to inner tissues of the skin;
• and
• light grooves in a concave shape disposed along a length direction of the at least one microneedle in such a manner that therapeutic light radiated from a light source for phototherapy penetrates into the skin along the at least one microneedle,
• wherein the light grooves comprise protrusions protruding from both sides of the light grooves.