초록 ▼

A medicament-dispensing system includes a cartridge for housing and actuating an accordion-like vial-dispenser for dispensing a calibrated amount of medicament by means of a single actuation motion which sequentially loads the vial-dispenser and dispenses the loaded medicament. The vial-dispenser ha

A medicament-dispensing system includes a cartridge for housing and actuating an accordion-like vial-dispenser for dispensing a calibrated amount of medicament by means of a single actuation motion which sequentially loads the vial-dispenser and dispenses the loaded medicament. The vial-dispenser has a front bellows portion, a rear bellows portion, an internal piston mechanism, a medicament storage chamber and a dosage cavity. The cartridge has a trigger mechanism which acts in concert with a notched lever and a wedge-shaped arm internally located in the cartridge to sequentially load the dosage cavity with medicament and discharge it. Depression of the trigger mechanism simultaneously extends, by means of the notched lever, the front bellows portion and compresses the rear bellows portion to load the dosage cavity with medicament. Once the notched lever has extended the front bellows portion a predetermined distance, the notched lever is disengaged from the front bellows portion by the wedge-shaped arm extending from the rear wall of the housing, thereby releasing the front and rear bellows portions, along with the internal piston mechanism, to return to original position and force the medicament from the dosage cavity via a nozzle of the vial-dispenser.

대표청구항 ▼

[ I claim:] [1.] A system for dispensing medicament, which comprises:a vial for holding a volume of medicament;an elastic, deformable body portion in fluid communication with said vial and containing a piston mechanism and a dosage cavity of a predetermined volume for collecting medicament from said

[ I claim:] [1.] A system for dispensing medicament, which comprises:a vial for holding a volume of medicament;an elastic, deformable body portion in fluid communication with said vial and containing a piston mechanism and a dosage cavity of a predetermined volume for collecting medicament from said vial, said piston mechanism being operationally coupled to said deformable body portion to move along longitudinal axis of the body portion in concert with deformation of the body portion along its longitudinal axis;a nozzle portion connected to said deformable body portion for allowing discharge of said medicament collected in said dosage cavity;a housing retaining said vial, said deformable body portion and said nozzle portion, said housing having an anterior wall with an aperture for receiving said nozzle portion, said nozzle portion, said body portion and said vial being arranged substantially linearly in that order along a longitudinal axis of the housing from an anterior end of the housing to a posterior end of the housing;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, and moving said piston mechanism, along the longitudinal axis towards the posterior end of said housing, said movement of said piston mechanism causing 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 deformable body portion returns to said ambient position upon disengagement from said lever and said piston mechanism moves in concert with said deformable body portion towards said nozzle portion to pressurize medicament in said dosage cavity and discharge said medicament through said nozzle portion.