Patent ID: 9089671
Filing Date: 2015-07-28
Classification: A61M,Y10T

Abstract:
1. An intravenous catheter assembly comprising: a catheter adapter having an inner surface forming a lumen, the inner surface including a distal ledge; and a septum having a proximal end, a distal end forming a distal membrane, and an outer surface, an outer portion of a surface of the distal membrane forming a seal with the distal ledge of the catheter adapter thereby creating a distal chamber and a proximal chamber within the lumen, the septum comprising one or more non-sealing centering ribs that extend along a length of the outer surface to space the outer surface of the septum from the inner surface of the catheter adapter; the septum further comprising one or more fluid pathways, each fluid pathway comprising a recess formed into the surface of the distal membrane from an inner portion of the surface of the distal membrane along the outer portion of the surface of the distal membrane and to the outer surface of the septum thereby allowing fluid or air within the distal chamber to bypass the seal formed between the outer portion of the surface of the distal membrane and the distal ledge and flow around the outer surface of the septum and into the proximal chamber.