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Suction nozzle used for inhalation drug delivery device and inhalation drug delivery device

A technology of inhalation drug delivery and medicine box, which is applied in the field of medical equipment, can solve the problem of reducing the ratio and achieve the effect of increasing the ratio

Active Publication Date: 2019-09-06
张江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the suction nozzle of the inhalation drug delivery device in the prior art sucks the powder, a part of the powder will adhere to the oral cavity, thereby reducing the proportion of the powder that enters the lungs and can really exert the drug effect

Method used

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  • Suction nozzle used for inhalation drug delivery device and inhalation drug delivery device
  • Suction nozzle used for inhalation drug delivery device and inhalation drug delivery device
  • Suction nozzle used for inhalation drug delivery device and inhalation drug delivery device

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of descriptio...

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Abstract

The invention discloses a suction nozzle used for an inhalation drug delivery device and the inhalation drug delivery device. The suction nozzle includes an oral inclusion part and a wind powder suction channel; the oral inclusion part includes a wind powder suction port and a peripheral wind suction port; the wind powder suction port communicates with the wind powder suction channel so as to provide suction force for drug powder; and the peripheral wind suction port is arranged outside of the wind powder suction port and communicates with external air so as to form peripheral wind outside ofthe wind powder suction port. Through the arrangement of the peripheral wind suction port, the peripheral wind can be formed outside of the wind powder suction port, thus, when the drug powder passesthrough an oral cavity, the peripheral wind outside of a main channel of the circulation of the drug powder can form a certain isolation effect between the drug powder and the wall of the oral cavity,so that the adhering of the drug powder to the wall of the oral cavity is difficult, and therefore, the proportion of the drug powder entering the lung can be enhanced.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a suction nozzle for an inhalation drug delivery device and an inhalation drug delivery device. Background technique [0002] Chronic obstructive pulmonary disease (COPD) is a chronic lung disease characterized by airflow limitation that is not fully reversible. The World Health Organization estimates that COPD is the third leading cause of death in my country, second only to tumors and cerebrovascular diseases. [0003] Pulmonary inhalation drug delivery is the preferred treatment for COPD, which has the characteristics of targeting, high efficiency, quick effect, and less toxic and side effects. Common preparations for inhalation include solution nebulization, metered nebulization and dry powder nebulization. Compared with solution nebulization and metered nebulization, dry powder aerosol inhalation has better compliance and is especially suitable for patients with...

Claims

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Application Information

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IPC IPC(8): A61M15/00
CPCA61M2210/1039A61M15/0001A61M15/0021A61M2210/005
Inventor 张江
Owner 张江
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