Medication Dose Timing Device With Ratchet Cap
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Solution Overview
Problem
Patients often forget the timing of their medication doses, leading to potential under-dosing or overdosing, and existing devices lack structures to guide accurate manual selection, especially for individuals with conditions like arthritis that cause hand spasms or tremors.
Innovation Solution
A clockface-style dial replacement cap for pill bottles with arcuate stops that allow sliding in one direction but prevent backward rotation, ensuring accurate placement of the next dosage time, featuring angled-ramp projection notches for clockwise movement and flat faces for counterclockwise prevention of back-rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional pill bundling devices are used, then pills are organized into separate compartments, but no indication is provided as to when the patient should take each dose
Solution Approach 1:
The patent combines pill storage compartments with a clockface timing indicator into a single integrated device. The clockface is embedded in the cap with hour markers that align with compartment positions, merging the organizational function with the timing information function so both are provided simultaneously.
Solution Approach 2:
The device serves multiple functions: it stores pills in organized compartments, displays timing information through the clockface, and provides a mechanism for setting and reading dosage times. This multi-functionality eliminates the need for separate timing devices or notes.
2Ease of operation
If a movable dial is allowed to rotate freely in both directions, then the user can adjust the time selection, but accurate selection is difficult for persons with hand spasms or tremors
Solution Approach 1:
The patent introduces asymmetric features on the dial including a protrusion that fits into a corresponding recess at the correct hour position, and a ratchet mechanism that allows movement in only one direction. This asymmetry provides tactile feedback and prevents backward movement, ensuring accurate time selection even for users with hand tremors.
Solution Approach 2:
The ratchet mechanism and protrusion-recess alignment automatically guide the dial to the correct position without requiring precise manual control. The mechanism itself performs the function of ensuring accurate alignment, reducing the skill and precision required from the user.
3Measurement precision
If a pill tracking device provides clear timing indication, then dosage accuracy is improved, but the device structure becomes more complex
Solution Approach 1:
The clockface is positioned on the cap surface at the same level as the pill compartments, creating an integrated structure where all elements are accessible from the same viewing angle. This eliminates the need for additional protruding components or multi-level structures.
Solution Approach 2:
The patent uses visual indicators on the clockface such as colored markers or highlighted hour positions to clearly indicate the current or next dosage time. This provides clear timing indication through color differentiation rather than requiring complex mechanical or electronic display mechanisms.
Data Source
AI summary
A medical dose timing device takes the form of a replacement cap for prescription bottles. A top face of the cap contains a twelve-hour clock face. An hour pointer is made to rotate manually only in one direction via stops at each hour. Each stop comprises a ramp for the free-rotating direction, and a flat face to prevent pointer rotation backwards in the counterclockwise direction.