Abstract: A medical device configured to be at least partially implanted within a host. The medical device includes an outer surface at least a portion of which is impermeable to cells but is permeable to molecules secreted by cells, the outer surface separating a space inside the medical device from a surrounding tissue of the host. The medical device also includes a diffusion sink positioned within the space and configured to cause molecules that are secreted into the tissue by immune cells during a foreign body response (FBR) to diffuse, through random motion, through the portion and into the diffusion sink.

Abstract: A container having a single unit dispensing feature built into the container cap is provided. The dispensing feature is an opening of sufficient dimensions to allow the controlled release of product. An optional incline located in the cap guides product toward the opening. The product is dispensed by inverting and tilting the container.