Thin film nasal dilator with delivery system
View Patent ↗The present invention discloses a nasal dilator comprising at least one breathable layer of adhesive-coated high MVTR layer, such as a polyurethane film, one or more adhesive-coated high modulus “spring” elements for dilating the nasal passages by applying a tension force to the skin, and a carrier delivery system. The carrier delivery system comprises a separation line or split through the carrier to allow for easy delivery of the nasal dilator. The carrier aids in the handling and delivery of the thin adhesive-coated high MVTR layer.
1. A nasal dilator, comprising
a breathable backing layer that comprises a first major surface and a second major surface;
an adhesive layer on the first major surface of the breathable backing layer;
a carrier releasably attached to the second major surface of the breathable backing layer, wherein the carrier is more rigid that the breathable backing layer and less rigid than the spring element;
at least one spring element attached to the breathable backing layer on at least one of the first major surface or second major surface, wherein the spring element extends parallel to the longest side of the breathable backing layer and is coextensive with at least 75% of the length of the breathable backing layer; and
a release liner.
2. The nasal dilator of claim 1 , wherein the spring element has sufficient spring force to return the spring element to its original position with the removal of stress and wherein the spring force is less than the adhesive force of the adhesive layer to skin.
3. The nasal dilator of claim 1 , wherein the spring element is attached to the adhesive on the first major surface of the backing.
4. The nasal dilator of claim 1 , further comprising a breathable facing layer proximate the first major surface of the breathable backing layer.
5. The nasal dilator of claim 1 , wherein the spring element comprises a high modulus thermoplastic material.
6. A method of dilating the nasal passages, comprising:
providing the nasal dilator of claim 1 ,
removing the release liner,
adhering the breathable layer to the patient, and
removing the carrier layer,
wherein the spring element applies force to the skin of the nose to open the nasal passages while the breathable layer remains adhered to the skin.
7. The nasal dilator of claim 1 , wherein the breathable backing layer comprises a high moisture vapor permeable film backing.
8. The nasal dilator of claim 7 , wherein the breathable backing layer transmits moisture vapor at a rate of at least 300 g/m 2 /24 hrs/37° C./100-10% RH.
9. The nasal dilator of claim 7 , wherein the breathable backing layer transmits moisture vapor at a rate of at least 700 g/m 2 /24 hrs/37° C./100-10% RH.
10. The nasal dilator of claim 7 , wherein the breathable backing layer transmits moisture vapor at a rate of at least 2000 g/m 2 /24 hrs/37° C./100-10% RH.