Catheter

A catheter comprising:

• an inner liner defining an inner lumen;
• an outer jacket;
• a structural support member positioned between at least a portion of the inner liner and the outer jacket and comprising a coil defining a plurality of turns, the plurality of turns comprising a first turn and a second turn;
• and
• a support layer comprising an adhesive, wherein the support layer mechanically connects the structural support member to the inner liner and is positioned in a space defined by a first surface of the first turn of the coil and a second surface of the second turn of the coil such that the support layer extends from the first surface to the second surface, and wherein the structural support member and the inner liner are not adhered to the outer jacket with adhesive.

A catheter comprising:

• an inner liner;
• an outer jacket;
• a coil member positioned between at least a portion of the inner liner and the outer jacket, the coil member defining a plurality of turns comprising a first turn and a second turn;
• and
• an adhesive adhering the coil member to the inner liner, wherein the adhesive is positioned in a space defined by a first surface of the first turn of the coil member and a second surface of the second turn of the coil member such that the adhesive extends from the first surface to the second surface, and wherein the coil member and the inner liner are not adhered to the outer jacket with adhesive.