Dermal delivery device with in situ seal

• Main Authors: CONWAY ROBERT G, KYDONIEUS AGIS, ROSSI THOMAS M
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2014
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

This invention relates to a transdermal drug delivery device that comprises an active ingredient (AI) layer, having a skin contacting surface and a non-skin contacting surface and comprising a volatile component, a release liner impermeable to the volatile component adjacent the skin contacting surface of the Al layer having a perimeter that extends beyond the perimeter of the Al layer in all directions, and an overlay comprising a pressure sensitive adhesive (PSA) that does not absorb the volatile component adjacent the non-skin contacting surface of the Al layer having a perimeter of which extends beyond the perimeter of the Al layer in all directions, wherein the release liner and the PSA of the overlay are in contact with and adhered to each other around the perimeter of the Al layer to form a seal that reduces or prevents volatile component loss.