[Efficiency criteria and basic parameters of powder inhalers].

Area of Science:

• Pharmaceutical technology
• Medical device engineering

Context:

• Powder inhalers are widely used for drug delivery.
• Existing devices exhibit design variations affecting performance.
• Standardized definitions for inhaler efficiency are lacking.

Purpose:

• To define the concept of powder inhaler efficiency.
• To analyze laboratory methodologies for efficiency assessment.
• To address inconsistencies in technical parameter evaluation.

Summary:

• This paper explores the notion of efficiency for powder inhalers.
• It examines various methodological approaches used in laboratory settings.
• The study aims to standardize the understanding of efficiency criteria.

Impact:

• A clearer definition of powder inhaler efficiency is proposed.
• Standardized laboratory methods can improve device comparison.
• Enhanced understanding supports the development of more effective inhaler technologies.