Safety cabinet
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Solution Overview
Problem
Safety cabinets used in regenerative medicine and similar fields often cause temperature changes that can damage cells or microorganisms due to differences between storage environment temperatures and the cabinet's temperature, leading to potential culture disruptions.
Innovation Solution
A safety cabinet with a temperature-regulatable operation stage that can be set to match the storage environment temperature, using electrothermal conversion elements or temperature-controlled fluid systems to minimize temperature fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the safety cabinet operates at room temperature (20°C to 25°C), then the operation environment is comfortable and suitable for handling, but temperature difference damages cells when containers are moved from storage (5°C) or culture room (35°C to 38°C)
Solution Approach 1:
The operation stage is divided into temperature-regulatable portions with different temperature zones. Each zone can be independently controlled to match the storage or culture temperature, while other areas remain at room temperature for comfortable operation. This local temperature differentiation resolves the contradiction by providing both comfortable operation conditions and temperature-matched zones for cell handling.
Solution Approach 2:
The operation stage is segmented into multiple temperature-regulatable portions that can be independently controlled. This segmentation allows different regions of the same stage to serve different temperature requirements simultaneously, enabling containers from various storage conditions to be placed on appropriate zones without exposing cells to harmful temperature differences.
2Device complexity
If the safety cabinet maintains a single temperature environment, then the structure is simple and easy to control, but it cannot accommodate containers from different temperature storage conditions
Solution Approach 1:
The operation stage is divided into multiple independently controllable temperature-regulatable portions. Each portion can be controlled separately to match different storage or culture temperatures, providing versatility for accommodating containers from various temperature conditions while maintaining a relatively simple overall structure through modular temperature control zones.
Solution Approach 2:
Different regions of the operation stage are assigned different temperature characteristics according to local requirements. This allows the system to adapt to various storage conditions locally without requiring complete temperature control of the entire cabinet, thus balancing structural simplicity with environmental adaptability.
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
Reduces temperature changes between the storage environment and the safety cabinet, thereby minimizing damage to cultured cells and microorganisms, allowing for more stable culture conditions.
Implementation Method 1
using electrothermal conversion elements or temperature-controlled fluid systems to minimize temperature fluctuations
Data Source
AI summary
Provided is a safety cabinet that reduces a temperature change between a storage environment temperature and a temperature in the safety cabinet to reduce damage to cultured microorganisms, cultured cells, or the like. The safety cabinet that includes a front panel and an operation opening in front of an operation space and an operation stage below the operation space and supplies purified air into the operation space from above, in which the operation stage is provided with a temperature-regulatable portion of which a temperature is regulatable.