Disposable nozzle adapter for intranasal spray containers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 12, 1991
Grant Date -
N/A
app pub date -
Aug 10, 1990
filing date -
Aug 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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