Abstract: An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface configured to engage with the step feature and resist further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. This interlocking engagement may allow the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by pulling the dilator in the opposite direction. The present technology also provides a dilator hub with a spring mechanism configured to achieve and maintain a desired tension on the expandable sheath and to prevent overextension of the expandable sheath when the dilator is being inserted into the expandable sheath.

Abstract: The invention in some embodiments features a contextual content delivery system (CCDS) for enhancing conventional web content with pop-up bubbles that display information when a cursor hovers over a word, link, or icon. The CCDS is configured to identify words or links in a document, determine their context, select the appropriate bubble from a plural of bubble types for each of the words or links, select content for each bubble based, in part, on the context in which the words and hyperlinks are used. The context can be determined from various sources including the resource in which the word or link appears and the target resource to which the link points. Thereafter, the CCDS enhances the words or links so that bubbles are automatically invoked in response to the appropriate trigger.

Abstract: The invention in some embodiments features a contextual content delivery system (CCDS) for enhancing conventional web content with pop-up bubbles that display information when a cursor hovers over a word, link, or icon. The CCDS is configured to identify words or links in a document, determine their context, select the appropriate bubble from a plural of bubble types for each of the words or links, select content for each bubble based, in part, on the context in which the words and hyperlinks are used. The context can be determined from various sources including the resource in which the word or link appears and the target resource to which the link points. Thereafter, the CCDS enhances the words or links so that bubbles are automatically invoked in response to the appropriate trigger.

Abstract: A hand-held portable computer is provided with a control wheel to accelerate navigation and selection that is otherwise difficult due to the small form factor of the portable computer. The wheel is turned in a first or in a second direction to scroll through an on-screen menu. The wheel is pressed to select a particular item from the on-screen menu for execution. Context-sensitivity is provided in that the underlying software determines which menu to display or command to execute, in response to dialing or clicking the wheel, based on which application and pane are currently active and based on which item in the pane is currently selected. User-configurability and extensibility to additional applications are provided, without modification of the underlying software application code.