Vacuum Wound Tube Support Web to Prevent Collapse

The patent applies porous polyethylene foam material as the supporting unit in the connecting tube. This porous material provides effective structural support against collapse under negative pressure while being more cost-effective than previously used materials like open-celled foam, spacer fabric, or complex porous materials. The foam material maintains tube patency and allows fluid passage through its porous structure.

The patent uses composite construction by combining polyethylene foam material with the connecting tube structure. The foam supporting unit is integrated into the tube wall, creating a composite structure that provides both mechanical support and fluid conductivity. This composite approach achieves reliable tube support at reduced production costs compared to using expensive specialized materials.

The patent merges the supporting unit with the connecting tube structure by integrating the foam material into the tube wall. Rather than adding a separate, complex supporting structure, the foam is incorporated directly into the tube construction, providing stability while maintaining a simple overall device design. The foam supporting unit becomes an integral part of the tube rather than an add-on component.

The patent employs a flexible foam supporting unit that can be integrated into the connecting tube structure. The foam material provides structural stability while maintaining flexibility, allowing the tube to bend and conform without rigid support structures. This approach achieves tube stability without increasing device complexity through rigid or complex mechanical supports.