Balloon catheter with tactile feedback features and reinforced lumen

A catheter system comprising:

• (a) a guide catheter comprising:
• (i) a proximal end,
• (ii) a distal end,
• (iii) an interior surface,
• (iv) an exterior surface, and
• (iii) a first tactile marker extending inwardly from the interior surface, wherein the tactile marker is located closer to the distal end than the proximal end;
• (b) a working device configured for insertion into the proximal end of the guide catheter and through the distal end of the guide catheter;
• and
• (c) a second tactile marker extending outwardly from the working device, wherein the second tactile marker is configured to engage the first tactile marker and thereby provide tactile feedback in response to passage of the second tactile marker past the first tactile marker during longitudinal movement of the working device through the guide catheter.

A catheter system comprising:

• (a) a hollow elongated shaft comprising:
• (i) a proximal end,
• (ii) a distal end,
• (iii) a first lumen having an open distal end, and
• (iv) a second lumen having an open distal end, wherein the open distal end of the second lumen is proximal in relation to the open distal end of the first lumen;
• (b) a dilation balloon, wherein the dilation balloon comprises a proximal end and a distal end, wherein the dilation balloon encompasses the open distal end of the second lumen such that the dilation balloon defines an interior in fluid communication with the second lumen;
• and
• (c) a support collar fixed to the hollow elongated shaft, wherein the support collar extends past the open end of the second lumen and into the interior of the dilation balloon.