Patent ID: 6302101
Filing Date: 2001-10-16
Classification: A61M,B05B

Abstract:
A dispensing system for delivery of medicament to a nasal passage, which comprises:a vial for holding a volume of medicament;a pump having an outlet in a nozzle portion and an elastic, deformable body portion connected to said nozzle portion, said body portion containing a piston mechanism and a dosage cavity of a predetermined volume for collecting medicament from said vial, said nozzle portion having a rigid shaft received therein and interfacing said outlet to form a first normally-closed valve;a housing retaining said vial and said pump, said housing exposing said outlet, and said housing having a guide element for aligning, when in a first position, said outlet with said nasal passage and screening said nasal passage from view;a trigger operationally coupled to said housing for actuating, by a single actuating motion of said trigger, said dispensing system to sequentially fill said dosage cavity with medicament from said vial and subsequently discharge said medicament from said dosage cavity;a lever operationally coupled to said trigger and releasably engaging said deformable body portion when said body portion is in ambient position, said lever being movable to a first non-ambient position in concert with a first phase of said actuating motion of said trigger and deforming at least a portion of said deformable body portion to cause flow of medicament from said vial to said dosage cavity to fill said dosage cavity; anda release arm internally positioned in the housing to oppose said lever at said first non-ambient position so as to disengage said lever from said deformable body portion upon continuation of said actuating motion into a second phase, wherein said elastic, deformable body portion returns to said ambient position upon disengagement from said lever to pressurize medicament in said dosage cavity and discharge said medicament through said outlet of said nozzle portion.