Vial Cap Holding Assembly for Child-Resistant Cap Conversion
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Solution Overview
Problem
Existing automated pharmaceutical dispensing systems face challenges in securing a closure (lid) on containers efficiently and converting child-proof caps to a non-child-proof configuration, particularly for environments without children or for elderly/infirm patients.
Innovation Solution
A cap holding assembly with a capture member platform, extendable members, and claw members that manipulate the cap center portion to convert it to a non-child-proof configuration, ensuring secure attachment to vials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a child-proof cap is used to prevent children from accessing medications, then safety is improved, but ease of operation deteriorates for elderly and infirm patients
Solution Approach 1:
The cap is designed with two operational states: a child-resistant configuration where the center portion is elevated to prevent access, and a non-child-resistant configuration where the center portion is depressed to allow easy access. The system dynamically transitions between these states based on user needs, resolving the contradiction between safety and ease of operation.
Solution Approach 2:
The cap's operational parameter (center portion position) is changed between two discrete states: elevated (child-proof) and depressed (non-child-proof). This parameter change allows the same cap to provide both child safety and ease of operation for authorized users, directly resolving the technical contradiction.
2Ease of operation
If an automated system converts caps to non-child-proof configuration, then ease of operation is improved for specific patients, but device complexity increases
Solution Approach 1:
The automated capping system uses the cap's own structural features (center portion and outer sidewall) to perform the conversion operation. The system presses the center portion downward to convert from child-proof to non-child-proof configuration, using the cap's inherent design rather than requiring complex external conversion mechanisms.
Solution Approach 2:
The patent extracts the cap configuration conversion function from the overall capping process, handling it as a separate, simplified operation. The elevator and cap holding assembly specifically address only the configuration conversion by pressing the center portion, separating this function from the main capping operation and reducing overall system complexity.
3Productivity
If existing automated systems cap vials, then productivity is improved, but the ability to convert caps to non-child-proof configuration is lost
Solution Approach 1:
The automated capping system is designed with multi-functionality, performing both the standard capping operation and the cap configuration conversion. The same elevator and cap holding assembly that secure the cap to the vial also press the center portion to convert it to non-child-proof configuration, allowing one system to serve multiple purposes without sacrificing productivity.
Solution Approach 2:
The patent merges the capping operation with the cap configuration conversion operation into a single integrated process. The elevator lowers the cap onto the vial while simultaneously pressing the center portion to convert the configuration, combining two functions into one unified action that maintains productivity while adding versatility.
Data Source
AI summary
An apparatus for securing a cap on a cylindrical container includes: a stage for separately receiving a cap and a container; an elevator movable upwardly away from the stage and downwardly toward the stage; and a cap holding assembly mounted on the elevator. The cap holding assembly comprises: a capture member platform, the capture member platform including a capture unit configured to capture the cap; at least one extendable member extending through the capture member platform, the at least one extendable member movable from a home position with the extendable member above a center of the cap captured by the capture unit and an engagement position with the extendable member engaging the center of the cap and urging the center of the cap downwardly relative to an outer sidewall of the cap; and a claw member attached to the capture member platform that is movable between an unengaged position, in which the claw member is not positioned to engage the cap, and an engaged position, in which the claw member is positioned to engage a lower edge of the cap.