Abstract: An occlusion device includes a balloon and a catheter. The occlusion device is configured to allow blood to pass through the balloon, instead of around the balloon. By allowing the blood to pass through the balloon, constant traction against the vessel wall is achieved, regardless of flow rate, thereby mitigating distal migration. The balloon includes an orifice to allow blood flow through the balloon. The orifice is independent of the diameter of the vessel, therefore the effect of the diameter of the vessel changing during the procedure will not affect the flow rate of blood. The occlusion device enables finer titration of blood flow by varying the size of the orifice when compared to conventional solutions.

Abstract: A method and apparatus for a multi-state window is accomplished by presenting a multi-state window on a computer screen in various states. In a given state, or ghost state, the multi-state window is provided on screen in a translucent form. In the translucent form, a window overlapped by the multi-state window will be shown and remain in focus. When a user input is received in the overlapped portion, a multi-state window driver associated with the multi-state window will provide the input to the overlaid window, i.e., to its associated window driver. If the user decides to activate the multi-state window, the multi-state window driver transforms the multi-state window from the translucent state to an in-focus state. When in the in-focus state, the user inputs are processed by the multi-state window driver and not provided to the overlaid window.