Dry Powder Inhaler Locking Mechanism for Blister Peeling
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Solution Overview
Problem
Current dry powder inhaler devices face issues with accuracy in medicament administration, hygiene, user compliance, and device complexity, leading to inefficient use and potential drug wastage due to inadequate force application during blister advancement.
Innovation Solution
A dry powder inhaler device with a lock and lid mechanism that ensures accurate blister peeling and automatic setup, featuring a gearwheel system for controlled blister advancement and a spring-loaded actuating element for precise dosage delivery, allowing single-step operation and automatic restoration for next use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a needle pierces the capsule to deliver medicament, then the drug can be exposed for inhalation, but the device becomes complex and requires additional components for counter and mouthpiece
Solution Approach 1:
The patent combines the capsule, counter, and mouthpiece into a single integrated inhaler device. The capsule serves dual purposes as both the medicament container and the counter mechanism, eliminating the need for separate components. The mouthpiece is integrated directly into the capsule structure, creating a unified device that reduces overall complexity while maintaining functionality.
Solution Approach 2:
The capsule is designed to perform multiple functions simultaneously: it contains the medicament, serves as the counter to track dosage, and integrates the mouthpiece for inhalation. This multi-functional design eliminates the need for separate components, reducing device complexity while maintaining ease of operation.
2Quantity of substance
If multiple medicament compartments are placed in a disk, then the device can store more drugs, but the device volume increases leading to carrying and handling difficulties
Solution Approach 1:
The patent divides the medicament storage into individual capsule units that can be independently managed. Each capsule contains a single dose and can be separately tracked and administered. This segmentation allows for efficient storage of multiple medicament units without requiring a large single disk structure, thereby reducing overall device volume while maintaining the ability to store and administer multiple doses.
3Ease of operation
If blisters are stripped and exposed drug is used with a mouthpiece, then the medicament can be inhaled, but no counter system is provided so the consumed amount of drug is not known
Solution Approach 1:
The patent merges the counter function directly into the capsule structure. The capsule design incorporates a counter mechanism that automatically tracks and displays the number of doses remaining and consumed. This integration ensures that dosage measurement is always available and accurate, eliminating the need for separate counter systems while maintaining ease of use.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides accurate and reliable medicament administration with reduced user intervention, ensuring complete peeling of blister cavities and automatic setup, enhancing operational efficiency and cost-effectiveness.
Implementation Method 1
a spring-loaded actuating element for precise dosage delivery
Data Source
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AI summary
The present invention relates to a dry powder inhaler device (7), advancing a blister (4) with a plurality of medicament-carrying cavities (4.1) in a single direction, said blister being placed in the interior of an outer housing (1), and guided to an inner body from one side, and from the other side to a mouthpiece (3), said device (7) further comprising an actuating element (5) slid into the interior of said outer housing (1), and a lid (6) connected onto the outer housing, wherein said device further comprises a locking clips (8) containing at least one lug (8.1) retaining said actuating element at a certain displaced distance to which it is pushed, and connected to the outer body (1), in a way that allows said clips (8) to be moved vertically up- and downward, so as to ensure that each cavity of which the turn comes for use can be completely peeled off.