Abstract: A collapsible device in a waffle structure is disclosed. The collapsible device includes a plurality of panels, each having an outer edge and elongated slots. Each of the elongated slots extends from the outer edge towards a central portion of the panel. The elongated slots receive intersecting panels such that the plurality of panels intersect, interlock, and create a waffle-like structure. The plurality of panels is configured to move pivotally to articulate the plurality of panels between a collapsed configuration and an extended configuration. The collapsible device is used in various applications, such as fidget toys, furniture, light fixtures, and other industrial applications such as jacks or material conveyors, or any application that benefits from flexibility or increasing or decreasing the size or length.

Abstract: An improved surgical drain of the Abramson type having a triple lumen catheter with a drainage lumen, an irrigation lumen, and an air ventilation lumen. The improved drain is interfitted with a connector providing a suction port for the drainage lumen, an irrigation port for the irrigation lumen, and an air intake port for the air ventilation lumen. Closure plugs for each port may also be provided. The improved drain further includes a suture means for securing the drain in place and stabilizing it and a softened distal end portion to reduce tissue necrosis upon insertion of the drain into the patient's body.