Patent ID: 7998113

Claim:
A medical device comprising: an element having a proximal hub portion and a tubular portion extending distally from the hub portion, the element defining a central lumen extending through the hub portion and the tubular portion, the element also defining a secondary lumen having a first open end and a second open end proximal to the first open end; a prefilled balloon positioned around the element such that an interior surface of the prefilled balloon operatively communicates with the second open end of the secondary lumen; a securement balloon positioned around the tubular portion distal to the prefilled balloon such that an interior surface of the securement balloon operatively communicates with the first open end of the secondary lumen, wherein the securement balloon, the secondary lumen, and the prefilled balloon define a closed fluid system having a predetermined volume of fluid and the securement balloon is stronger than the prefilled balloon such that fluid in the closed fluid system is biased toward the prefilled balloon and inflates the prefilled balloon before inflating the securement balloon; and a transfer sleeve slidably positioned around the tubular portion, the transfer sleeve being movable along the tubular portion from a first position spaced from the prefilled balloon to a second position positioned around the prefilled balloon to urge fluid from the prefilled balloon into the securement balloon to inflate the securement balloon, wherein when the transfer sleeve is in the first position the medical device is in a first condition in which the securement balloon is substantially collapsed and when the transfer sleeve is in the second position the medical device is in a second condition in which the securement balloon is inflated.