Shielded Inhaler Controls for Child-Resistant Activation
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Solution Overview
Problem
Existing inhalers lack effective child-resistant mechanisms that prevent misuse by children without compromising convenience for adult users.
Innovation Solution
An inhalation device with a first and second operation unit covered by a shielded member, requiring a coordinated release operation to perform predetermined functions, controlled by a computer to restrict operations until the release is completed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operation units are covered with a shielded member to prevent child access, then child resistance is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies preliminary action by requiring the user to perform a specific sequence of operations (pressing both operation units simultaneously for a predetermined time) before the device becomes operational. This preliminary action is designed to be intuitive for adults who can remember the sequence, while remaining inaccessible to children who cannot recall or perform the correct sequence, thus achieving child resistance without significantly compromising ease of operation for the intended user群体
Solution Approach 2:
The patent changes the parameter of operation complexity by introducing a time-based condition (predetermined time period) and a coordination condition (simultaneous pressing of both units). These parameter changes create a barrier that is easily surmountable by adults with cognitive ability but insurmountable by young children, resolving the contradiction between child resistance and ease of operation
2Reliability
If a complex release operation is required to activate the device, then child resistance is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by using the existing operation units (designed for normal device operation) for dual purposes: both as functional controls and as child resistance mechanism components. This multi-functionality allows the device to maintain its original operational simplicity while adding child protection capabilities, avoiding the need for separate complex locking mechanisms and thereby not increasing overall device complexity
Solution Approach 2:
The device employs self-service by using its own operational interface elements (the operation units) to provide the child resistance function. Rather than requiring additional external components or complex mechanical locks, the system leverages its existing structure and user interaction paradigm to achieve child protection, thus avoiding increases in device complexity
Data Source
Figure 1A
Figure 1B
Figure 2~3(b)
AI summary
This inhalation device (100B), which generates an aerosol from a stick-type base material (150) having an aerosol source, comprises a first operation button and a second operation button that can be operated by a user, and a control unit (116B) for controlling the operation of the inhalation device (100B). The first operation button and the second operation button are configured so as to be able to assume a shielded state in which the buttons are covered by another member and are hardly noticeable by the user. The control unit (116B) restricts a prescribed operation of the inhalation device (100B) until a prescribed cancellation operation using the first operation button and the second operation button is performed.