Nasal Delivery Device Grip Orientation and Manual Actuation
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Solution Overview
Problem
Current nasal delivery methods lack simple and reliable mechanisms for accurately and comfortably delivering medicaments and substances to the nasal cavity, particularly for conditions requiring precise dosing and rapid systemic or topical effects.
Innovation Solution
A nasal delivery device with a housing, nosepiece, mouthpiece, and manually actuable substance supply unit, featuring a grip section with projecting elements for proper orientation and operation, allowing for efficient and controlled delivery of substances to the nasal cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a manually actuated substance supply unit is used for nasal delivery, then the device can deliver substances accurately and controllably, but the device complexity increases
Solution Approach 1:
The actuation member is manually actuated by the user themselves, eliminating the need for external pumps, motors, or automated delivery systems. The user directly operates the plunger mechanism to control substance delivery, thereby achieving accurate and controllable delivery while avoiding the complexity of automated mechanisms.
2Ease of operation
If a grip section with projecting elements is added to the housing, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The grip section incorporates projecting elements that create an asymmetric structure, providing the user with clear tactile feedback and visual cues about the correct orientation and grip position. This asymmetric design intuitively guides the user on how to hold and operate the device, significantly improving ease of operation without requiring complex controls or interfaces.
3Speed
If nasal delivery is used for rapid systemic uptake, then the speed of action improves, but the reliability of dosing becomes more challenging
Solution Approach 1:
The manually actuated plunger mechanism provides tactile feedback to the user during each actuation, allowing them to control the timing and amount of substance delivered. This feedback mechanism enables precise dosing control while maintaining the rapid onset advantage of nasal delivery, as the user can adjust the rate and volume based on their specific needs.
Data Source
AI summary
A nasal delivery device comprising: a housing (15); a nosepiece (17) for fitting to a nasal cavity of a subject; a mouthpiece (19) through which the subject in use exhales; and a substance supply unit (21) including an actuation member (23) which extends from one end of the housing and is manually actuated to deliver substance to the nasal cavity of the subject; wherein the housing includes a grip section (27) which is disposed at the one end of the housing from which the actuation member extends, said grip section comprising a first, distal part (28) including at least one projecting grip element (29) by which the subject grips the housing in actuating the actuation member, and a second, proximal part (31) providing a recess (33) in which fingers of the subject are located, said recess promoting proper orientation of the delivery device in a hand of the subject.