Catheters and related devices and methods of manufacture

A catheter, comprising:

• an elongate rod, a saddle member connected to a distal end of the rod, and an elongate tubular shaft extending from a distal end of the saddle member, a lubricious polymeric inner liner extending through the tubular shaft and the saddle member, a reinforcement coil disposed about the lubricious polymeric inner liner, a thin film polymeric layer extending over the tubular shaft and saddle member, wherein the saddle member includes a distal facing, terminal trailing edge having a plurality of peninsular members defining a plurality of embayments, and wherein the thin film polymeric layer extends through the embayments to the lubricious polymeric inner liner in the saddle member such that the thin film polymeric layer is connected to, and extends from, the distal-facing, terminal trailing edge.

A catheter, comprising:

• an elongate rod, a saddle member connected to a distal end of the rod, and an elongate tubular shaft extending from a distal end of the saddle member, a lubricious polymeric inner liner extending through the tubular shaft and the saddle member, a coil disposed about the inner liner, and a thin film polymeric layer extending over the coil and saddle member, wherein the coil has a proximal end and a distal end and wherein the coil comprises a core and a jacket, wherein the core has a first attenuation coefficient when radiated by a first X-ray radiation, and the jacket has a second attenuation coefficient when radiated by the first X-ray radiation, the first attenuation coefficient being greater than the second attenuation coefficient, and wherein adjacent turns of the coil at the proximal and distal ends thereof contact each other and are welded together, and wherein the saddle member includes a distal-facing, terminal trailing edge that includes a plurality of peninsular members defining a plurality of embayments, and wherein the thin film polymeric layer extends through the embayments to the lubricious polymeric inner liner in the saddle member such that the thin film polymeric layer is connected to, and extends from, the distal-facing, terminal trailing edge.