Abstract: Methods and apparatus are described for producing a computer-generated image by monitoring one or more kinds of activity of a user to identify at least one item of interest; and creating a computer-generated image including a representation of the item of interest overlaid onto an image of a model, environment or contextually relevant scenario. The process begins at 102 with monitoring a user's online activity. Software tracks and stores which purchasable items on the website/mobile application the user appears to be most interested. In a particular example, a user's abandoned basket feed is tracked and stored. In another example, cookies information is stored. Another indicator of items that a user is most interested in is length of time browsing a webpage associated with a particular item. Dwell time and cursor tracking software may also be used to identify which items the user viewed most. At 114, a model simulation is created. The object to be modelled relates to the items of interest.

Abstract: A simulated trachea for a tracheostomy simulator assembly includes a first conduit defining a trachea and a first aperture penetrating the sidewall of the trachea. The trachea is clear and surrounded by anatomically functional elements to provide efficient and thorough tracheostomy training for medical professionals.