System and method for application of medicament into the nasal passage
US6302101A · kind A · utility
Inventor
Key dates
| Filing date | Dec 14, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Dec 14, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pump-type dispenser for dispensing predetermined doses of medicament in droplets or in spray form to the nasal area incorporates a rigid vial for medicament, an expandable pouch located within the rigid vial, a nasal screen, a one-way actuation mechanism, a one-way valve mechanism in the nozzle area and a spring element, both the valve mechanism and the spring element being formed as integral portions of the pump body. The nasal screen aligns the dispenser nozzle with the nasal passage and also allows the user to discreetly hide the nasal area from public view. The one-way valve mechanism in the nozzle area ensures a one-way movement of medicament from the dispenser, thereby preserving substantially perfect sterility of the medicament in the dispenser regardless of the environment surrounding the dispenser, without requiring the use of preservatives. The one-way actuation mechanism enables the user to load and dispense a uniform quantity of medicament with a uniform actuation force and speed via a single continuous motion of the actuation mechanism upon application of a very small force on the actuation trigger mechanism by the user. By preventing the pump mechanism from being le…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.