Membrane Tissue Spanning Tool for Uniform Tension and Low Damage
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Solution Overview
Problem
Current methods for handling membrane-shaped tissues in tissue culture are inefficient, time-consuming, and prone to failure, especially when spanning small membranes, leading to reduced surface area and increased tissue damage.
Innovation Solution
A handling tool comprising a platform with positioning elements, a spanning element, and a flexible element, along with a handling means, allows for easy fixation, cutting, and manipulation of membrane-shaped tissues, ensuring equal tension and minimizing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional two-ring spanning method is used, then membrane can be fixed between rings, but the process is time-consuming and prone to failure especially with small membranes
Solution Approach 1:
The device segments the spanning process into distinct functional components: a base plate with positioning elements for stable placement, a spanning element with gripping surfaces for secure membrane attachment, and a pressing element for applying controlled force. This segmentation allows each component to optimize its specific function, improving both speed and reliability.
Solution Approach 2:
The spanning element acts as an intermediary between the base plate and the membrane, providing a dedicated interface with gripping surfaces that securely hold the membrane during spanning operations. This intermediary structure eliminates the need for manual manipulation with tweezers, reducing failure rates and improving consistency.
2Area of stationary object
If membrane is spanned to maximize surface area, then cell growth is improved, but tissue damage and cramping increase requiring re-spreading
Solution Approach 1:
The device enables precise control of spanning parameters including the distribution and magnitude of pressing forces through the pressing element, and the positioning of the spanning element relative to the membrane center. This parameter control allows achieving maximum surface area while maintaining uniform tension and avoiding excessive stress that causes tissue damage.
Solution Approach 2:
The base plate with positioning elements ensures the spanning element is correctly positioned and oriented relative to the membrane, creating uniform tension distribution across the spanned surface. This equipotential tension distribution prevents localized stress concentrations that lead to tissue damage and cramping.
3Ease of operation
If manual spanning with tweezers is used, then flexibility in handling is achieved, but operation time and complexity increase
Solution Approach 1:
The device is designed to be self-aligning through positioning elements on the base plate that guide the spanning element into the correct position. The pressing element automatically applies force when engaged, eliminating the need for continuous manual adjustment and manipulation, thus reducing operation time while maintaining ease of use.
Solution Approach 2:
The device combines multiple functions into a single integrated tool: the base plate provides stable positioning, the spanning element provides secure membrane gripping, and the pressing element provides controlled force application. This multi-functionality replaces multiple manual operations (positioning, gripping, pressing) with a single device, reducing time and complexity.
Data Source
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AI summary
A tool for fixating and handling membrane-shaped tissue for research or clinical use. The tool comprises a platform comprising a base plate having at least one positioning element for positioning a spanning element on the platform, at least one round shaped spanning element adapted for being positioned on the platform using the positioning element, at least one flexible element for positioning over the round shaped spanning element for spanning the membrane shaped tissue, and at least one handling means for handling the flexible element during positioning of the flexible element over the round shaped spanning element, and for handling the combination of the round shaped spanning element and the flexible element, when the membrane is spanned over the round shaped spanning element.