Abstract: A percutaneous dilational medical insertion device and method comprising a needle removeably disposed in a catheter and a tubular member. The catheter has an inflatable balloon member disposed between a first catheter end and a second catheter end. The second catheter end having a flexible end portion. The needle has a tip that extends beyond the second catheter end that is percutaneously inserted into an interior cavity. After insertion into the interior cavity, the needle is removed from the catheter. When the needle is removed, the flexible end portion of the catheter curls to protect the interior cavity as the catheter is advanced. The catheter is advanced until the inflatable balloon member is received in a wall of the interior cavity. The inflatable balloon member is dilated to form a passageway. The tubular member disposed about the catheter proximate the first catheter end is then advanced into the passageway.

Abstract: A percutaneous medical insertion device for positioning a tubular member or a catheter within an interior cavity or a vein. The catheter having a flexible end portion and an opening that removeably receives a needle. The flexible end portion is essentially straight when the needle is positioned in the flexible end portion and the flexible end portion essentially curls when the needle is removed from the flexible end portion. The catheter has an opening that allows for the creation of a ninety degree angle of the catheter and simultaneously allowing a needle to be inserted through the flexible end of the catheter. After insertion into the interior cavity or the vein, the needle is removed from the catheter. The flexible end portion of the catheter curls when the needle is removed from the catheter to protect the interior of the interior cavity or the vein as the catheter is advanced.

Abstract: A system for demonstrating financial and financially related concepts and displaying financial and financially related information is provided. The system includes a central processing unit for processing financial information and for creating graphic displays from numerical data, a demonstrator station and at least one viewer station. Both demonstrator and viewer stations include display means for displaying financial information in graphic and textual form. The demonstrator station further comprises data entry means for entering alphanumeric data, and input means for inputting signals to direct the display of information on the display means of both the demonstrator station and the viewer station or stations. The graphic information displayed on the viewer station display means is a subset of the information displayed on the demonstrator station displaying means. The system also includes means for generating graphic displays based on entered data.