# US 2013/0156871 A1 · Nasal Wash Solution > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156871 A1 - Document ID: US20130156871A1 - Status: Published application - Kind: A1 - Application number: 13/722,748 - Filed: 2012-12-20 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: Water Pik, Inc. - Inventors: Ted Keller - Web page: https://patentgrep.com/patent/US20130156871A1 ## CPC - A61K 9/0043: {Nose} - A61P 11/02: Nasal agents, e.g. decongestants - A61P 31/04: Antibacterial agents - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) - A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS ## Abstract A composition provides an isotonic nasal irrigation solution with pH less than about 7.0. The composition may be formed of a salt and a pH buffer and may include an additive. The composition may be mixed with water to form the solution. The composition may aid in the treatment of various nasal or sinus disorders such as, for example, dryness, rhinitis, and sinusitis. The isotonic irrigation solution may also aid in the removal of contaminants from the sinus and nasal cavities such as blood, mucus, dirt, pollen, allergens, viruses, and bacterial. The composition may be liquid or dry. ## Claims ### Claim 1 A nasal wash composition comprising a salt; and a pH buffer, wherein when the salt and the pH buffer are mixed with a prescribed volume of water an isotonic solution of pH below 7.0 is produced. ### Claim 2 (depends on 1) The composition according to claim 1, wherein the pH of the solution is 6.7. ### Claim 3 (depends on 1) The composition according to claim 1, wherein the pH buffer is selected from sodium ascorbate and sodium bicarbonate. ### Claim 4 (depends on 1) The composition according to claim 1, further comprising one or more additives selected from the group consisting of moisturizers, flavorants, oils, herbs, and medicaments. ### Claim 5 (depends on 4) The composition according to claim 4, wherein the additive is selected from the group consisting of eucalyptus oil, menthol, and aloe. ### Claim 6 (depends on 1) The composition according to claim 1, comprising sodium chloride between 80% to 88% by weight of the composition; sodium ascorbate between 9% to 20% by weight of the composition; and sodium bicarbonate between 0% to 2% by weight of the composition. ### Claim 7 (depends on 1) The composition according to claim 1, wherein the prescribed amount of water is approximately 100-times the weight of the composition. ### Claim 8 (depends on 1) The composition according to claim 1, wherein the composition is dry. ### Claim 9 (depends on 1) The composition according to claim 1, wherein the composition is packaged in pre-measured amounts or provided in bulk form. ### Claim 10 (depends on 1) The composition according to claim 1 for use in a nasal spray. ### Claim 11 A method of preparing a nasal wash solution comprising: combining a pre-determined amount of a salt, and a pre-determined amount of a pH buffer, and a pre-determined volume of water, to create an isotonic solution, wherein said solutions has a pH of below 7.0, thus preparing a nasal wash solution. ### Claim 12 (depends on 11) The method of claim 11, wherein the salt and the pH buffer are combined into a composition. ### Claim 13 (depends on 12) The method of claim 12, wherein the composition further comprises one or more additives selected from the group consisting of moisturizers, flavorants, oils, herbs, and medicaments. ### Claim 14 (depends on 13) The method of claim 13, wherein the additive is selected from the group consisting of eucalyptus oil, menthol, and aloe. ### Claim 15 (depends on 11) The method of claim 11, wherein the pH of the isotonic solution is between 6.6 and 6.8. ### Claim 16 (depends on 15) The method of claim 15, wherein the pH of the solution is 6.7. ### Claim 17 (depends on 11) The method of claim 11, wherein the salt is selected from one or more of sodium ascorbate and sodium chloride. ### Claim 18 (depends on 11) The method of claim 11, wherein the pH buffer is selected from one or more of sodium ascorbate and sodium bicarbonate. ### Claim 19 (depends on 12) The method of claim 12, wherein the composition comprises sodium chloride between 80% to 88% by weight of the composition; sodium ascorbate between 9% to 20% by weight of the composition; and sodium bicarbonate between 0% to 2% by weight of the composition. ### Claim 20 (depends on 11) The method of claim 11, wherein the water is one or both of distilled or de ionized. ### Claim 21 A method of treating a nasal or sinus condition comprising combining an amount of nasal composition with a volume of water to create a salt solution with a pH below 7.0, wherein the ratio of composition to water is about 1:100; and introducing the isotonic salt solution into the sinus or nasal cavities of a patient in need of such treatment. ### Claim 22 (depends on 21) The method according to claim 21, wherein the solution is selected from isotonic, hypertonic, and hypotonic. ### Claim 23 (depends on 21) The method according to claim 21, wherein the solution inhibits bacterial growth.