BEI KONTAKT MIT DER NASE AUSLÖSENDE NASALE VERABREICHUNGSVORRICHTUNG.

摘要

A dispenser for intranasal administration of one or several biologically active substances comprises a vessel (2) containing a pressurized propellant, at least one duct (10) connecting a nosepiece (9) with the vessel (2), and a valve (3) closing the passage from the vessel (2) to the nosepiece (9). The valve (3) has means (6) opening this valve (3) by nose contact when the nosepiece (9) is inserted in a nostril. The biologically active substance is placed in the duct (10) and is entrained by the propellant out through the nosepiece (9) and into the nostril when the valve (3) is activated by nose contact with the opening means (6). Preferably, two nosepieces are provided so that nosepieces may be concomitantly inserted in both nostrils, and the valve opening means (6) is placed between the two nosepieces to be activated by the septum of the nostrils when the nosepieces are inserted.