Implantable medical endoprosthesis delivery system with hub

An implantable medical endoprosthesis delivery system, comprising:

• an inner member having a first lumen disposed therein;
• an outer member at least partially surrounding the inner member so that a second lumen is disposed between the inner and outer members, the second lumen being configured so that an implantable medical endoprosthesis can be disposed therein;
• a hub including a fluid introduction port, a first fluid flow path in fluid communication with the fluid introduction port, and a second fluid flow path in fluid communication with the fluid introduction port,
• wherein the first flow path is in fluid communication with the first lumen and the second flow path is in fluid communication with the second lumen;
• wherein the hub comprises a body having a proximal face, a distal face, and a bore extending from the proximal face through the body to the distal face, the bore being in fluid communication with the first and second lumens;
• wherein the body comprises:
• a first section that defines a first portion of the bore;
• and
• a second section proximal the first section, the second section defining a second portion of the bore;
• wherein the first portion of the bore receives a proximal end of the outer member, the second portion of the bore receives a proximal end of the inner member, and the second portion of the bore includes a channel that defines at least a portion of the second fluid flow path;
• wherein the body further comprises a third section proximal the second section, the third section defining a third portion of the bore, and the third portion of the bore being in fluid communication with the channel and with the fluid introduction port;
• and
• wherein the third portion of the bore has a diameter smaller than a diameter of the second portion of the bore.

An implantable medical endoprosthesis delivery system, comprising:

• an inner member having a first lumen disposed therein;
• an outer member at least partially surrounding the inner member so that a second lumen is disposed between the inner and outer members, the second lumen being configured so that an implantable medical endoprosthesis can be disposed therein;
• a hub including a fluid introduction port, a first fluid flow path in fluid communication with the fluid introduction port, and a second fluid flow path in fluid communication with the fluid introduction port,
• wherein the first flow path is in fluid communication with the first lumen and the second flow path is in fluid communication with the second lumem;
• wherein the hub comprises a body having a proximal face, a distal face, and a bore extending from the proximal face through the body to the distal face, the bore being in fluid communication with the first and second lumens;
• wherein the body comprises:
• a first section that defines a first portion of the bore;
• and
• a second section proximal the first section, the second section defining a second portion of the bore;
• wherein the first portion of the bore receives a proximal end of the outer member, the second portion of the bore receives a proximal end of the inner member, and the second portion of the bore includes a channel that defines at least a portion of the second fluid flow path;
• wherein the body further comprises a third section proximal the second section, the third section defining a third portion of the bore, and the third portion of the bore being in fluid communication with the channel and with the fluid introduction port;
• and
• wherein the body further comprises a fourth section disposed between the first and second sections and defining a counterbore flush slot that extends circumferentially around the inner member and is in fluid communication with the channel and the second lumen.