Patent ID: 7488304
Filing Date: 2009-02-10
Classification: A61M

Abstract:
1. A catheter assembly comprising: a proximal tubular member, the proximal tubular member having an interior surface and an exterior surface, at least a portion of the exterior surface comprising at least one thermoplastic polymer, the proximal tubular member having a distal end region; a distal outer tubular member, the distal outer tubular member having an interior surface, an exterior surface and having a proximal end region, the proximal tubular member and the distal outer tubular member defining at least one continuous central lumen; an inner member, the inner member defining a guidewire lumen, the inner member having a proximal end region and a proximal end, the proximal end defining a shaft port, at least a portion of the inner member being positioned external to at least a portion of the exterior surface of the proximal tubular member, at least a portion of the interior surface of the distal outer tubular member being positioned external to at least a portion of the inner member; an inner support layer, the inner support layer being attached to the inner surface of the proximal tubular member, a distal end portion of the inner support layer extending distally beyond a distal end of the proximal tubular member; and an engagement region, the engagement region having a distal end, a proximal end of the distal outer tubular member being within the engagement region and a distal end of the proximal tubular member being within the engagement region, a first portion of the distal end region of the proximal tubular member being engaged to a portion of the proximal end region of the distal outer tubular member in the engagement region and a second portion of the distal end region of the proximal tubular member being engaged to a portion of the proximal end region of the inner member in the engagement region, the inner support layer extending distally beyond the distal end of the engagement region.