Patent ID: 6206834
Filing Date: 2001-03-27
Classification: A61B,A61M

Abstract:
An elongate medical device for pressure measurement in a blood vessel comprising:an elongate flexible tube having a stiffness and a lumen therein for transmitting a pressure wave from an at least one distal opening in the elongate tube to a proximal opening in the elongate tube;a luer-lock assembly removably mounted to a proximal end of the elongate tube, the luer-lock assembly configured to be removed from the elongate flexible tube so that a balloon catheter or other medical device may be advanced over the elongate tube and to a vascular treatment site, the luer-lock assembly comprising;a first housing having an inner cavity, a distal end which tapers to form a muff, the muff configured to surround a proximal portion of the elongate tube, and a proximal end comprising a collar having an external thread;a second housing mounted on the first housing and having a proximal end comprising an outer collar with an inner thread for threaded connection to the proximal end of the first housing and further configured for connection to a pressure measuring device or a fluid supply system; anda sealing member positioned in the inner cavity of the first housing, the sealing member configured to seal around the elongate member when the first housing is threadedly engaged with the second housing; andan elongate stiffening member configured to be removably inserted into the elongate tube for varying the stiffness of the elongate tube.