Patent ID: 6893421
Filing Date: 2005-05-17
Classification: A61M

Abstract:
1. A catheter shaft assembly, comprising: a first elongate shaft having an inner surface defining a lumen; a second elongate shaft having an outer surface, an interstitial member disposed between the inner surface of the first elongate shaft and the outer surface of the second elongate shaft, a housing disposed about the first elongate shaft proximate the proximal end thereof; a slider disposed about the second elongate shaft proximate a proximal portion thereof wherein the slider is disposed within a chamber defined by the housing; a plurality of indicia disposed upon a surface of the housing proximate the slider; the second elongate shaft forming a point at the distal end thereof; the second elongate shaft defining an injection port proximate the point thereof; and the second elongate shaft defining an injection lumen in fluid communication with the injection port.