Each LANGSTON dual lumen catheter is indicated for delivery of contrast medium in angiographic studies and for simultaneous pressure measurement from two sites. This type of pressure measurement is useful in determining transvalvular, intravascular and intraventricular pressure gradients.
A thin, flexible tube designed to inject a contrast medium into select blood vessels of the cerebral, visceral, or peripheral vasculature during an angiographic procedure in order to facilitate the clear visualization of the vascular system of a targeted organ or area of the body. It is introduced percutaneously, has a radiopaque marker(s) for positioning, and may include disposable devices dedicated to catheter introduction/function [e.g., sheath(s)]. It may also be used for simultaneous pressure measurements to determine the transvalvular, intravascular, and intraventricular pressure gradients. This is a single-use device.
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