Luer members for coaxial lumen catheter

A dilation catheter for dilation of an anatomical passageway, wherein the dilation catheter comprises:

• (a) a luer member, wherein the luer member comprises:
• (i) a proximal end,
• (ii) a distal end,
• (iii) a lumen that extends from the proximal end of the luer member to the distal end of the luer member, and
• (iv) at least one fluid port;
• (b) an elongate shaft, wherein the elongate shaft defines a longitudinal axis, wherein the elongate shaft is positioned within a distal portion of the lumen of the luer member and extends distally therefrom, wherein the elongate shaft comprises:
• (i) a proximal end,
• (ii) a distal end,
• (iii) a lumen formed within the elongate shaft, wherein the at least one fluid port is in fluid communication with the lumen of the elongate shaft such that fluid may be passed through the at least one fluid port into the lumen of the elongate shaft, and
• (iv) at least one fluid seal configured to provide a fluid seal between the luer member and the elongate shaft, wherein the elongate shaft is secured to the luer member distally of the fluid seal;
• and
• (c) an inflatable dilator, wherein the inflatable dilator is positioned along a length of the elongate shaft, wherein the inflatable dilator is in fluid communication with the lumen of the elongate shaft such that the inflatable dilator is inflatable by fluid passed through the at least one fluid port and into the lumen of the elongate shaft.

A dilation catheter for dilation of an anatomical passageway, wherein the dilation catheter comprises:

• (a) a luer member, wherein the luer member comprises a fluid port;
• (b) an elongate shaft, wherein the elongate shaft defines a longitudinal axis, wherein the luer member is rotatably disposed about the elongate shaft such that the luer member is configured to rotate relative to the elongate shaft about the longitudinal axis of the elongate shaft, wherein the luer member and the elongate shaft cooperate to define a fluid reservoir between an exterior surface of the elongate shaft and an interior surface of the luer member, wherein the elongate shaft comprises:
• (i) a proximal end,
• (ii) a distal end, and
• (iii) a lumen formed within the elongate shaft, wherein the fluid port is in fluid communication with the lumen via the fluid reservoir such that fluid may be passed through the fluid port and into the lumen via the fluid reservoir;
• (c) a pair of fluid seals, wherein the pair of fluid seals is configured to provide a fluid seal between the luer member and the elongate shaft on opposite ends of the fluid reservoir;
• and
• (d) an inflatable dilator, wherein the inflatable dilator is positioned along a length of the elongate shaft, wherein the inflatable dilator is in fluid communication with the lumen such that the inflatable dilator is inflatable by fluid passed through the fluid port and into the lumen of the elongate shaft.