Disposable nozzle adapter for intranasal spray containers
US5064122A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Aug 10, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M15/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable nozzle adapter for intranasal administration of a viscous medical solution in combination with a spray container, which comprises a cylindrical body, a rod arranged in the body, and a nozzle tip. The body has a cylindrical chamber and a central bore communicated with the chamber through a channel for attachment of the spray container. The rod is provided on its one end at the least with a small-sized portion and middle-sized portion. The nozzle tip has a top wall and a cylindrical portion extending therefrom, the top wall being provided with a central spray opening including a tapered recess, and swirl grooves extending outwardly from the tapered recess to the inner surface of the cylindrical portion. The swirl grooves have a cross-sectional area increasing outwardly and its cross-sectional area is 0.03 to 0.08 mm.sup.2 at the minimum. The nozzle tip is fitted in the opening of the chamber of the body and engaged with the middle-sized portion of the rod to form an annular channel surrounding the small-sized portion of the rod and being communicated with the grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.