Abstract: A metered-dose atomization module, an atomizer, a spray assembly and the use thereof. The metered-dose atomization module includes: a spray head in which an atomization cavity has a step surface; an atomization piece, including an annular brake and a microporous membrane attached to a side surface of the annular brake; rubber rings, including a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring being annular and arranged on two sides of the atomization piece respectively; and a pressing plate, the pressing plate being annular and fixed to the spray head, and being adapted to cooperate with the step surface to install the atomization piece and the rubber rings in the atomization cavity.

Abstract: An inspiratory trigger atomizer for a patient with an airway disease, including: a main body including an atomization module and a nozzle connected thereto; an atomization driver; an air pressure sensor electrically connected to the driver, and a gas guide channel arranged in the main body, with a first end located in the nozzle and a second at a monitoring end of the sensor. The sensor acquires the air pressure in the nozzle that changes with the patient's breathing, identifies the inhalation state of the patient and generates a corresponding signal to trigger a main unit module to start the atomization driver. The atomizer has an extremely short inspiratory trigger response time, such that atomization can be quickly triggered after the patient inhales, and with atomization duration being 1.5 s, the patient can fully inhale a drug, so the atomizer can be applied to a wide range of people.

Abstract: Packing system and method for shipping pallet truck vehicles wherein each vehicle has a front frame configured to be assembled to a rear frame. The packing system includes a first holder that holds a plurality of vehicle rear frames lying on their sides, a second holder that holds a plurality of vehicle front frames having forks with at least a first front frame upright and having the forks facing in a first direction, and holds at least a second front frame inverted and having the forks facing in an opposed second direction, and wherein the first holder holding the plurality of rear frames is disposed within the second holder vertically between the forks of the upright at least one first front frame and the forks of the inverted at least one second front frame.