Petri Dish with Integrated Scale and Magnifier
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Solution Overview
Problem
Conventional petri dishes require manual measurements and are prone to inaccuracies, especially when counting colonies and observing growth, due to the need for rulers and limited visibility, which makes the process tedious and unreliable.
Innovation Solution
A petri dish with a graduate scale, sector lines, a detachable absorbent pad ring to manage moisture, and a magnifying glass integrated into the top plate for enhanced visibility and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurements with rulers are used, then the petri dish structure remains simple, but measurement precision and observation accuracy deteriorate
Solution Approach 1:
The patent merges the measurement scale directly with the petri dish base plate, integrating the ruler functionality into the dish structure itself. This eliminates the need for separate external rulers while providing precise measurement markings, thereby improving measurement precision without significantly increasing device complexity.
Solution Approach 2:
The magnifying glass is nested within the lid structure of the petri dish, with the magnifying lens integrated into the transparent lid. This allows the magnification function to be embedded within the existing dish structure, providing enhanced observation capability while maintaining a compact and simple overall design.
2Measurement precision
If the petri dish is opened for observation, then observation accuracy improves, but the material is exposed to environmental conditions
Solution Approach 1:
The magnifying glass is nested within the lid structure, allowing users to observe and measure colonies through the closed lid. This integration enables accurate observation without opening the petri dish, thereby maintaining sterile conditions and preventing environmental contamination while achieving high observation accuracy.
Solution Approach 2:
The magnifying glass acts as an intermediary tool that enables detailed observation through the transparent lid without direct contact or opening of the dish. This intermediary mechanism allows users to obtain accurate visual information while keeping the material protected from environmental factors.
3Ease of operation
If moisture is not managed, then the petri dish structure remains simple, but handling difficulty and result interference increase
Solution Approach 1:
The absorbent pad is placed locally at the periphery of the petri dish base plate, specifically positioned to absorb condensation moisture that forms on the lid. This localized moisture management solution improves handling ease and prevents result interference without requiring complex moisture control systems throughout the entire dish.
4Productivity
If colony counting is done manually without aids, then the device structure remains simple, but counting accuracy and efficiency deteriorate
Solution Approach 1:
The patent combines multiple functions (measurement scale, magnification, and quadrant division) directly into the petri dish structure. The scale is printed on the base plate, the magnifying glass is integrated into the lid, and sector lines are marked on the base, creating a multi-functional system that improves counting efficiency without requiring separate external tools or complex equipment.
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
The petri dish enables precise measurements and improved observation of colony growth without exposing the material to environmental conditions, enhancing the reliability and efficiency of biological assays.
Implementation Method 1
a detachable absorbent pad ring operatively coupled to a rim of the top plate. The detachable absorbent pad ring is configured to absorb moisture from the material within the petri dish
Implementation Method 2
a magnifying glass have a predefined size housed on an inner surface of the top plate. The magnifying glass is configured to provide an enlarged view of the material placed with the base plate
Data Source
AI summary
A petri dish is provided. The petri dish includes a base plate configured to hold a material. The base plate includes a graduate scale with marking. The base plate also includes a plurality of sector lines arranged to divide the base plate into a plurality of sections. The petri dish also includes a top plate configured to be operable with the base plate; a detachable absorbent pad ring operatively coupled to a rim of the top plate. The detachable absorbent pad ring is configured to absorb moisture from the material within the petri dish. The petri dish also includes a magnifying glass of a predefined size housed on an inner surface of the top plate. The magnifying glass is configured to provide an enlarged view of the material. The magnifying glass operates when the top plate is closed on top of the base plate.