Latch Indicator Mechanism for Medical Compartment Access Tracking
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Solution Overview
Problem
Conventional latch systems for securing storage compartments in medical environments, such as ambulances, lack efficient mechanisms to indicate access and require costly and time-consuming methods for inventory control and replenishment, often leading to potential unauthorized access and tampering.
Innovation Solution
A latch system with an actuator, indicator, and reset mechanism that changes state from 'unaccessed' to 'accessed' upon opening, remaining in the 'accessed' state until manually reset, providing a visual indication of compartment access and eliminating the need for disposable plastic tags.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional latch systems are used for securing storage compartments, then security is maintained, but there is no efficient mechanism to indicate access status and inventory control becomes time-consuming
Solution Approach 1:
The indicator member changes its visual state (color or position) to indicate the access status of the storage compartment. When the compartment is accessed, the indicator transitions from a first state (e.g., green) to a second state (e.g., red), providing immediate visual feedback without requiring manual inspection of contents.
Solution Approach 2:
The latch system automatically tracks and indicates access status without requiring manual intervention for inventory checking. The mechanism self-updates the indicator when the compartment is opened, eliminating the need for staff to manually catalog contents for inventory control.
2Ease of operation
If disposable plastic tags are used to indicate access, then access indication is provided, but cost and resource waste increase
Solution Approach 1:
Instead of discarding plastic tags after use, the indicator member is designed to be reusable and resettable. The same indicator component serves multiple access cycles, eliminating the need for continuous consumption of disposable tags and reducing waste.
Solution Approach 2:
The patent replaces expensive reusable latch mechanisms with inexpensive disposable plastic tags in conventional systems, but this invention does the reverse by making the indicator member itself disposable or resettable, reducing material waste while maintaining functionality.
3Measurement precision
If individual compartments are opened and cataloged for inventory control, then accurate inventory tracking is achieved, but the process becomes unreasonably time-consuming
Solution Approach 1:
The indicator member provides immediate feedback on access status without requiring physical inspection of contents. When a compartment is opened, the indicator automatically changes state, providing accurate inventory tracking information instantly without the time-consuming process of manually cataloging items.
4Reliability
If a reset mechanism is added to the latch system, then access indication accuracy is improved, but device complexity increases
Solution Approach 1:
The reset mechanism is integrated into the existing latch assembly rather than being a separate component. The reset button or mechanism is combined with the latch body and indicator assembly, minimizing additional complexity while maintaining the ability to reset the indicator after proper access procedures.
Data Source
AI summary
Latches and latch systems configured for providing an access indication are disclosed. One latch comprises an actuator, an indicator, and a reset mechanism. The actuator has an unopened position and an opened position. The indicator has a first position in which the indicator provides a first indication and a second position in which the indicator provides a second indication. The indicator is configured to move from the first position to the second position when the actuator is moved from the unopened position toward the opened position. The reset mechanism is configured to move the indicator from the second position to the first position. Once the indicator is moved from the first position to the second position, it is configured to remain in the second position independent of movement of the actuator until the reset mechanism moves the indicator to the first position from the second position.