Medication Drawer Assembly With Selective Compartment Access
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Solution Overview
Problem
Medical items, such as medications and instruments, require controlled-access storage to prevent misuse, theft, or errors, but existing solutions lack secure and efficient methods for selective access and authorization.
Innovation Solution
A drawer assembly and automated dispensing system with a slidable drawer unit and a flexible cover, equipped with an electric actuator and controller, allowing controlled movement of the cover or belt for selective access, integrated with a user interface and memory for authorization and content management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is used to prevent access to compartments, then security is improved, but accessibility to authorized items deteriorates
Solution Approach 1:
The patent implements a dynamic access control system where the locking mechanism transitions between locked and unlocked states based on authorization verification. The system dynamically adjusts the locking state of individual compartment lids rather than maintaining a static locked condition, allowing authorized users to access specific compartments while maintaining security for others.
Solution Approach 2:
The patent applies different access control characteristics to different compartments individually. Each compartment can have its own locking status and access requirements, allowing the system to provide localized security measures tailored to specific items stored in each compartment rather than uniformly locking all compartments.
2Ease of operation
If manual access to all compartments is allowed, then ease of operation is improved, but security deteriorates due to potential misuse
Solution Approach 1:
The patent incorporates a feedback mechanism where the system monitors user identification, verifies authorization levels, and provides real-time control over compartment access. The system receives feedback from biometric sensors or card readers and automatically adjusts locking mechanisms based on the verified user's authorization, preventing misuse while maintaining ease of operation for authorized personnel.
Solution Approach 2:
The system enables authorized users to independently access their permitted compartments through automated authorization verification. Users present their identification (biometric data or access card), and the system automatically grants or denies access without requiring manual intervention from administrators, thus preventing misuse while maintaining operational efficiency.
3Strength
If a rigid cover is used for the drawer unit, then structural strength is improved, but flexibility for selective access deteriorates
Solution Approach 1:
The patent divides the cover structure into multiple independent segments or lids, each corresponding to a specific compartment. Each segment can be independently opened, closed, and locked based on access requirements, providing both the structural strength of a complete cover and the flexibility of selective access to individual compartments.
Data Source
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AI summary
The disclosure relates to drawer assembly (210) having at least one drawer with selectable access, the drawer assembly (210) comprising: at least one drawer housing (122); a belt (412) having a first opening (222; 452); a drawer unit (212) which is slidable within the drawer housing (122), the drawer unit (212) including walls (230, 430) that form a drawer unit interior (232; 422) with individual compartments (234; 422), wherein the belt (412) is moveable relative to the drawer unit (212) such that the belt (412) provides a closure for the drawer unit (212), and the first opening (222; 452) is movable to provide access to a portion of the drawer interior (230, 424); an electric actuator (242) coupled to the belt (412); and a controller (114) coupled to the actuator (242) to control movement of the first opening (222; 452) relative to the drawer interior (232; 422) in response to signals (116) generated from a user interface, wherein the electric actuator (242) is an electric motor (470) coupled to the belt (412) to selectively move the first opening (222; 452) relative to the compartments (234; 422) in response to the controller (114), wherein the controller (114) is configured to control the electric actuator (242) to cause movement of the belt between: a first position in which the belt (220) blocks access to a first compartment and the first opening (222) allows access to a second compartment (234); a second position in which the belt (220) allows access to the first compartment and forms a closure with the second compartment (234); and a third position in which the belt (220 forms a closure with both the first and second compartments.