Gas Valve Locking Sleeve for Unauthorized Medical Gas Access
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Solution Overview
Problem
Existing medical gas containers, such as those containing MEOPA, are vulnerable to misuse and unauthorized use, particularly outside hospital settings where recreational use is a concern.
Innovation Solution
A removable safety device for gas distribution taps on pressurized gas containers, featuring a movable locking part with lashing arms and a latch mechanism, which can be locked and unlocked easily to prevent unauthorized access and gas distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety device is installed on the gas distribution tap to prevent unauthorized use, then security against misuse is improved, but the device complexity increases
Solution Approach 1:
The safety device is divided into distinct functional components: a main body forming a protective sleeve, a movable locking part with lashing arms, and a gas opening/closing member. This segmentation allows each component to perform its specific function independently while maintaining overall system security without excessive complexity
Solution Approach 2:
The locking part is designed to be movable between locked and unlocked positions, allowing the safety device to transition between security states. The lashing arms can move to engage or disengage from the gas opening/closing member, providing dynamic security control while maintaining mechanical simplicity
2Reliability
If a locking mechanism is added to prevent manual manipulation of the gas opening/closing member, then protection against unauthorized access is improved, but the ease of operation deteriorates
Solution Approach 1:
The locking part acts as an intermediary mechanism between the user and the gas opening/closing member. It provides the necessary security function while maintaining ease of operation through simple axial movement between locked and unlocked positions, without requiring complex manipulation
3Ease of operation
If a removable safety device is designed to be easily mounted and dismounted, then the ease of operation is improved, but the reliability of continuous protection may deteriorate
Solution Approach 1:
The safety device is pre-configured with the locking part and lashing arms in their proper positions, allowing for quick installation onto the gas distribution tap. The preliminary arrangement of components enables rapid deployment while ensuring that once installed, the protection mechanism is immediately effective and reliable
Data Source
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Figure 3
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AI summary
The invention relates to a pressurized gas container (500) equipped with a gas dispensing valve (50) having a removable safety device (1) comprising a main body (100) with an internal housing (103) delimited by an inner face (102), for housing a gas dispensing valve (50), and at least one locking stop (104) arranged on the inner side of the main body (100). A locking piece (200) comprising one or more lashing arms (201) is arranged to move axially (AA) within the main body (100), between an unlocked position (P0) and a locked position (P1), and vice versa, to allow the safety device (1) to be placed on the valve (50) or, conversely, removed after unlocking using a specific tool (400), such as a key. The container (500) is used to store a medical gas.