Medication Cap Dial with Gear Assembly and Ratchet
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Solution Overview
Problem
Existing container assemblies for medicine bottles lack secure and adjustable indicators to manage medication schedules effectively, as they are prone to inadvertent or undesired movement, leading to inaccurate tracking of medication usage.
Innovation Solution
The integration of a gear assembly within the cap of the container assembly, which includes a dial and user gear subassembly, allows for controlled rotation of the dial to align different indicia with a passageway, using a ratchet and stopper mechanism to prevent reverse rotation and ensure accurate tracking of medication schedules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple indicator mechanism is used in the container assembly, then the device complexity is reduced, but the reliability of tracking medication schedules deteriorates due to inadvertent movement
Solution Approach 1:
The patent replaces a simple mechanical indicator system with a gear assembly mechanism that uses mechanical advantage and ratchet-stopper systems to prevent inadvertent movement. The gear assembly translates small rotational inputs into controlled dial movements, substituting a fragile simple indicator with a robust mechanical transmission system that inherently prevents backward movement and maintains tracking accuracy.
Solution Approach 2:
The patent introduces a dynamic adjustment mechanism where the dial can be intentionally rotated by the user through the gear assembly, but the system dynamically prevents reverse rotation through the ratchet-stopper mechanism. This creates an asymmetric dynamic behavior that allows forward adjustment while maintaining reliability against accidental changes, resolving the contradiction between simplicity and reliability.
2Reliability
If an adjustable indicator mechanism is added to the container assembly, then the reliability of tracking medication schedules is improved, but the device complexity increases due to additional components
Solution Approach 1:
The patent merges the indicator adjustment function with the existing cap structure by integrating the gear assembly and dial mechanism within the cap body. The closure body defines a closure space that houses the gear assembly, and the base body defines an indicia space containing the dial. This merging approach incorporates the reliable adjustable indicator mechanism within the existing container assembly footprint, reducing the perceived complexity increase while maintaining enhanced tracking reliability.
Solution Approach 2:
The patent employs a nested structure where the gear assembly is positioned within the closure space defined by the closure body, and the dial is positioned within the indicia space defined by the base body. The gear assembly includes nested subassemblies (dial gear subassembly, user gear subassembly) that are compactly arranged. This nesting allows the complex mechanism to be contained within the existing cap structure, minimizing the increase in overall device complexity while achieving reliable adjustable tracking.
3Reliability
If a secure mechanism like gear assembly with ratchet and stopper is implemented, then the reliability and security of indicia positioning is improved, but the ease of operation deteriorates due to multiple steps required for adjustment
Solution Approach 1:
The patent implements a self-locking mechanism where the ratchet and stopper components automatically engage to prevent reverse rotation of the dial after user adjustment. The spring-loaded stopper automatically resets and re-engages with the ratchet teeth, providing self-service security without requiring additional user actions. This self-locking behavior maintains ease of operation for the primary adjustment function while automatically providing security, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The patent introduces the gear assembly as an intermediary mechanism between the user's rotational input and the dial's final position. The gear assembly with its ratchet-stopper mechanism acts as a mediator that translates the user's adjustment action into a secure, locked position. This intermediary mechanism simplifies the user interaction (single rotational motion) while providing complex security functions (prevention of reverse movement, automatic locking), thereby maintaining ease of operation while enhancing reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a secure and reliable mechanism for tracking medication schedules, preventing unintentional changes to the indicia and ensuring accurate information display, thus enhancing user compliance with medication regimens.
Implementation Method 1
The gear assembly may include a dial gear subassembly including a dial gear coupled to the dial body, and a user gear subassembly including a user gear and a user shaft extending away from the user gear. Rotation of the user shaft is operative to rotate the user gear, rotation of the user gear is operative to rotate the dial gear
Implementation Method 2
using a ratchet and stopper mechanism to prevent reverse rotation and ensure accurate tracking of medication schedules
Data Source
AI summary
Adjustable indicators for containers and methods for using and making the same are provided. In one embodiment, a cap includes a closure body defining a closure space, a dial, an external force interface, a path portion defining a path, and an interaction feature including an extender that is operative to move along the path, wherein application of external force on the external force interface is operative to move the extender in a first direction along a first segment of the path, at least partial termination of the external force on the external force interface is operative to move the extender in a second direction along a second segment of the path, and movement of the extender along the second segment of the path in the second direction is operative to rotate the dial body about an axis within the closure space.