Dry powder inhalation dosing device

Abstract

The invention relates to a dry powder inhalation dosing device and belongs to the field of inhalation type dosing instruments. A vibration gear is arranged below a dosing measuring module and provides longitudinal vibration for the dosing measuring module. Through a mode of single vibration or double vibration of medicine powder in a medicine powder storage container, the dry powder inhalation dosing device has good medicine powder adaptability and convenience in adjusting mechanical structure parameters design vibration effects, so that the metering accuracy of the medicine powder dose provided by a medicine storage unit in the process of medicine dosing by the whole dry powder inhalation dosing device each time is guaranteed better. The operating steps of the whole dry powder inhalation dosing device are simplified, and the better operating convenience is provided for the use by patients. When the dry powder inhalation dosing device is used, the complete medicine supply and dosing process can be achieved once only by manually rotating a rotating cover once respectively in the first rotating direction and the second rotating direction. The dry powder inhalation dosing device can be widely suitable for the fields of design and manufacture of dry powder inhalation dosing devices of various specifications.

Description

technical field [0001] The invention belongs to the field of devices for injecting media into the human body, and in particular relates to an inhalation drug delivery device for sending a specified dose of powder aerosol into the patient's lungs through the oral cavity along with the breathing air. Background technique [0002] In modern medical technology, oral or nasal inhalation can make the drug directly enter the lungs and absorb into the blood, avoiding the "first pass" effect of the liver. [0003] Clinically, pulmonary drug delivery is mainly used to treat pulmonary diseases such as asthma, chronic obstructive pneumonia, and cystic fibrosis. Due to the thin wall of alveolar epithelial cells, large surface area, and low enzyme metabolic activity, in recent years, pulmonary drug delivery has gradually become a new way for non-invasive delivery of more drugs (such as peptides and protein drugs, etc.). [0004] In the way of pulmonary drug delivery, powder aerosol has m...

AI Technical Summary

Problems solved by technology

[0012] However, in actual use, it is found that the use of a structure with a rotating slideway increases the structural complexity and manufacturing process of the drug delivery device, and the second is that the user needs to operate the rotating slideway due to the structural limitations of the rotating slideway. Cover 4 times to completely complete a drug inhalation operation. The number of operations and steps are many, which is not easy to use and operate. Moreover, because the user often rotates the angle not in place, it will affect the smooth completion of subsequent drug delivery steps.

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