Atomization pressurizing device for pulmonary delivery spray

Abstract

The invention discloses an atomization pressurizing device for pulmonary delivery spray. The problem that manually-applied force is uneven and not prone to being controlled, and consequently the sprayvolume is uneven is solved. According to the technical scheme, the atomization pressurizing device comprises an air cylinder, a connecting tube and a resetting device; the air cylinder is connected with an air pump and comprises a cylinder body and a push rod; the air cylinder is configured to provide the even pressure for a pulmonary delivery spray device through the push rod so as to enable thepulmonary delivery spray device to spray evenly; the two ends of the connecting tube are detachably connected with the air cylinder and the pulmonary delivery spray device correspondingly, the push rod of the air cylinder and a piston rod of the pulmonary delivery spray device stretch out and draw back in the connecting tube in the axis direction of the connecting tube, and a return device pushing the piston rod to an initial position conveniently is arranged on the connecting tube; and the resetting device is connected with the air cylinder, and the resetting device is configured to drive the push rod to be automatically reset to retract into the cylinder body. Through design of the technical key points, the pulmonary delivery spray device is subjected to pressurizing spraying through the air cylinder, and the effects of even force applying and even spraying are achieved.

Description

technical field [0001] The invention relates to the technical field of aerosol lung delivery, in particular to an atomization pressurization device for lung delivery spray. Background technique [0002] With the increasing incidence of human respiratory diseases and lung cancer, the harm of inhalable substances to human health has attracted more and more attention. In recent years, researchers have carried out a large number of animal inhalation toxicity experiments on pesticides, chemicals, drugs, cosmetics and environmental pollutants to evaluate their safety, such as investigating their effects on lung cancer, emphysema, tuberculosis, pneumonia, asthma, etc. , chronic obstructive pulmonary disease and cystic fibrosis. At present, the two methods commonly used in inhalation experiments are the animal oral and nasal inhalation method and the animal tracheal instillation method. Although these two types of defenses have a wide range of applications, there are still many pr...

AI Technical Summary

Problems solved by technology

For example, the oral and nasal inhalation method has problems such as large sample consumption, difficulty in accurately quantifying the actual inhaled dose of inhalable substances in animals, relatively low effective utilization of samples, expensive and complex instruments, and difficulty in tracheal instillation. Simulates the actual breathing state of daily exposure to inhalable substances

However, the device needs to be manually operated by the experimenter to control the amount of dry powder aerosol ejection. Since the force applied by manual operation is not easy to control, and the forces applied by different experimenters are different, the pressure on the device Uneven resulting in uneven spray volume

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