Abstract: A Stylet device that allows for the articulation of tubing and provides a method for positioning of the tubing during intubation or other procedures while the tubing is located within a passage-way or lumen of a subject, such as an airway, organs, veins, intestines and the like. Where unique anatomical conditions are present in a subject, rendering standard intubation devices inadequate, the articulation capabilities of the apparatuses of the current invention are of particular use during methods of use and further promote the non-occlusion of the central cavity of the tube.

Abstract: Hyaluronic acid particles and their use in biomedical applications are provided. In one embodiment, an HA particle comprising a plurality of free polymer chains extending from a surface of the particle such that the polymer chains are capable of association with polymers or with polymer chains on a surface of other particles is provided.