Tissue Layering Device With Pin Anchoring
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Solution Overview
Problem
Manufacturing multi-layered tissue products, such as those using placental membranes, is challenging due to issues like retraction, sliding, and air bubble formation during layering, which affect product quality and waste tissue resources.
Innovation Solution
A material layering system comprising a base and top plate with elongate pins and apertures that secure and compress tissue layers, maintaining a flat orientation and preventing sliding, while removing air bubbles to achieve consistent thickness and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tissue layers are layered manually without support structures, then the layering process is simple, but the tissue layers retract, slide, and form air bubbles causing poor quality
Solution Approach 1:
The patent introduces a base plate with pins and a top plate with apertures as intermediary structures between the tissue layers and the layering process. The pins pierce through the tissue layers to secure them to the base plate, preventing sliding and bunching, while the apertures in the top plate receive the pins to hold the layers in place during compression and drying.
Solution Approach 2:
The patent extracts and removes air bubbles from between the tissue layers by compressing the stacked layers between the top and bottom plates. The compression force pushes air bubbles out from the interlayer spaces, eliminating the harmful factor of air pockets that would compromise product quality.
2Manufacturing precision
If tissue layers are compressed to remove air bubbles, then air bubble formation is prevented, but the tissue may deform or lose its shape
Solution Approach 1:
The patent performs preliminary pinning of the tissue layers to the base plate before compression occurs. The pins pierce through the layers and secure them in the desired position and orientation, so that when compression is applied to remove air bubbles, the tissue layers maintain their shape and do not deform or shift.
3Productivity
If multiple tissue layers are stacked without securing mechanisms, then the layering process is fast, but the layers slide and bunch causing waste of tissue resources
Solution Approach 1:
The pin-and-aperture system acts as an intermediary securing mechanism that quickly anchors each tissue layer as it is placed on the base plate. The pins pierce through the layers and engage with the apertures, preventing sliding and bunching, thereby reducing tissue waste while maintaining efficient layering speed.
4Stability of the object's composition
If the tissue layers are stretched to maintain flat orientation, then retraction is prevented, but the tissue may tear or become damaged
Solution Approach 1:
The tissue layers are pinned to the base plate in their desired flat orientation before any stretching or tension is applied. The pins secure the layers in place, distributing the mechanical stress and preventing concentrated forces that would cause tearing, thereby maintaining flat orientation without compromising tissue integrity.
Data Source
AI summary
The invention generally relates to devices for manufacture of tissue products, and, more particularly, to material layering assemblies for processing tissue layers to produce a multi-layered tissue product. The invention provides a material layering system to support and/or hold various layers of material to form a multi-layered product.