Cell Detachment Vibration Assembly With Acoustic Heat Buffer
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Solution Overview
Problem
Existing cell detachment methods using vibration devices generate heat, which reduces cell survival rates, and require complex cooling systems, increasing costs.
Innovation Solution
A cell detachment apparatus with a stacked configuration of a vibrator, vibration plate, and acoustic transmission medium, where the areas of contact between the acoustic transmission medium and vibrator do not overlap, minimizing heat transfer to cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vibration device is used to detach cells from the culture container, then cell detachment efficiency is improved, but heat is generated that reduces cell survival rate
Solution Approach 1:
The patent introduces an acoustic transmission medium as an intermediary between the vibration plate and the culture container. This medium has specific acoustic impedance characteristics that enable efficient vibration transmission while reducing heat transfer to the cells. The acoustic transmission medium acts as a thermal and acoustic buffer, separating the heat-generating vibration source from the sensitive cells.
Solution Approach 2:
The patent extracts the harmful heat generation aspect from the vibration process by using the acoustic transmission medium to selectively transmit acoustic energy while blocking thermal energy transfer. This separates the useful function (vibration for detachment) from the harmful effect (heat transfer), allowing the beneficial effects to be retained while eliminating the detrimental ones.
2Object-affected harmful factors
If a cooling device is added to prevent heat transfer to cells, then cell survival rate is improved, but device configuration becomes complicated and cost increases
Solution Approach 1:
Instead of adding a complex cooling device, the patent uses the acoustic transmission medium as a passive intermediary that inherently reduces heat transfer while maintaining vibration transmission. This single-component solution replaces what would otherwise require an active cooling system with multiple components, control mechanisms, and power requirements.
Solution Approach 2:
The patent replaces the proposed mechanical cooling system with a material-based solution. The acoustic transmission medium's physical properties (acoustic impedance and thermal characteristics) provide the heat management function without requiring mechanical cooling components, motors, or control systems.
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 apparatus reduces heat transfer to cells during vibration, maintaining high cell survival rates without the need for complex cooling systems.
Implementation Method 1
applying vibration to the cells using a cell detachment apparatus that includes a vibrator and a vibration plate
Implementation Method 2
an acoustic transmission medium, and the culture container are arranged to be stacked on each other in this order
Data Source
AI summary
A cell detachment apparatus that detaches cells placed on a culture surface of a culture container for cells by applying vibration to the cells includes a vibrator and a vibration plate, wherein the vibrator, the vibration plate, an acoustic transmission medium, and the culture container are arranged to be stacked on each other in this order, and the cell detachment apparatus is configured so that an area where the acoustic transmission medium comes into contact with the vibration plate does not overlap an area where the vibrator comes into contact with the vibration plate in a stacking direction of the vibrator, the vibration plate, an acoustic transmission medium, and the culture container.