Multifunctional Petri Dish Dual Sealing Structure
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Solution Overview
Problem
Existing Petri dishes face challenges with water evaporation, contamination, and lack of multifunctionality, such as oxygen control, nutrient supplementation, and efficient labeling, which are critical for advanced life science research and bioengineering applications.
Innovation Solution
A multifunctional Petri dish with a dual sealing structure and integrated accessory devices that provide air-tightness, anti-contamination, deoxygenation or fresh air supply, nutritional supplementation, sample collection, and pre-labeled barcode or QR code for easy tracking and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional unsealed Petri dish is used, then the structure is simple and easy to manufacture, but water evaporates significantly (50% within ten days at 37°C) and contamination occurs
Solution Approach 1:
The sealing structure is divided into multiple independent components: a sealing ring made of elastomer material, and a separate sealing groove structure integrated into the Petri dish lid. This segmentation allows each component to be optimized for its specific function while maintaining ease of manufacturing through modular assembly.
Solution Approach 2:
The sealing ring is nested within the sealing groove structure, with the sealing groove forming a cavity that accommodates the sealing ring. This nested arrangement ensures the sealing ring is properly positioned and compressed when the lid is attached to the Petri dish base, creating an effective seal without complex assembly procedures.
2Ease of operation
If traditional sealing materials like Parafilm or 3M Micropore are used, then sealing convenience is improved, but water evaporation and contamination problems are not effectively solved
Solution Approach 1:
The sealing system uses a composite structure combining an elastomer sealing ring with a rigid sealing groove structure integrated into the lid. This composite design provides both the flexibility needed for easy sealing and the structural integrity required for reliable, long-term sealing effectiveness under incubation conditions.
Solution Approach 2:
The sealing ring is made of elastomer material that can deform elastically to conform to the sealing groove and create a tight seal. This flexible property allows the sealing ring to accommodate minor variations in manufacturing tolerances and assembly conditions while maintaining effective sealing against water evaporation and contamination.
3Ease of operation
If manual marking with alcohol-resistant pens is used, then marking capability is improved, but seamless linkage with advanced electronic equipment is blocked
Solution Approach 1:
Instead of relying on manual markings that cannot be digitally processed, the invention incorporates machine-readable barcode labels that can be directly scanned and read by electronic equipment. This copying approach transitions from human-readable markings to machine-readable data representation, enabling seamless integration with laboratory information management systems and electronic tracking devices.
Solution Approach 2:
The barcode labeling system serves multiple functions: it provides unique identification for tracking, enables electronic data capture and management, and can be integrated with automated laboratory systems. This multi-functional labeling approach replaces the single-function manual marking system and enables adaptability to various electronic equipment and information management platforms.
4Productivity
If the Petri dish is opened frequently for medium replenishment or sampling, then nutrient supplementation and monitoring are improved, but contamination risk and water evaporation increase
Solution Approach 1:
The invention introduces a needle-based access system that penetrates the sealed environment of the Petri dish lid to provide intermediate access for medium replenishment and sampling. This intermediary mechanism allows liquid and gas exchange without breaking the seal, eliminating the need to open the dish and thereby preventing contamination and water evaporation while maintaining culture monitoring capabilities.
Data Source
AI summary
The present invention discloses a multifunctional Petri dish with two sealing structures to ensure that the water in the medium will not evaporate during continuous culture, further affecting cultured living material growth and development. In addition to alcohol spray, the multifunctional Petri dish allows the application of acids, alkalis, alcohols, peroxides solution, or peroxides gas to immerse the multi-purpose Petri dish to remove bacteria or viruses. Various accessory devices can meet all requirements for a living culture of cells and tissues that the existing Petri dishes cannot provide. Using the dish cover operator and the dish container operator is essential to ensure that the researcher's hands will not directly touch the Petri dish in the sterile operating bench, thereby blocking all potential contamination of the medium and culture by foreign organisms. The labeling and labeling reading recorder with the multifunctional Petri dish provides more convenient and accurate electronic data establishment and reading for in vitro culture.