Catheter with friction reducing surface shaping

A catheter comprising:

• a tube member having an outer diameter and an inner diameter and extending between an open end and a closed end;
• a catheter neck circumferentially disposed about said tube member adjacent said tube member closed end, said neck having an outer diameter less than said tube member outer diameter and greater than said tube member inner diameter;
• and
• one or more fluid apertures disposed in said tube member, in said neck, or in or adjacent said closed end.

A catheter comprising:

• a tube member having an outer diameter and an inner diameter and extending between an open end and a closed end;
• a catheter neck circumferentially disposed about said tube member adjacent said tube member closed end, said neck having an outer diameter greater than said tube member outer diameter and less than three times said tube member outer diameter;
• and
• one or more fluid apertures disposed in said tube member, in said neck, or in or adjacent said closed end.

A catheter comprising:

• a tube member having an outer diameter and an inner diameter and extending between an open end and a closed end;
• one or more catheter dimples disposed in said tube member, said dimples extending from said tube member outer diameter towards said tube inner diameter a predetermined depth being less than a distance between said tube inner and our diameters;
• and
• one or more fluid apertures disposed in said tube member, in or adjacent said one or more dimples, or in or adjacent said tube member closed end.

A catheter comprising:

• a tube member having an outer diameter and an inner diameter and extending between an open end and a closed end;
• one or more catheter projections disposed on said tube member outside diameter, said projections extending outwardly from said tube member outer diameter a predetermined distance;
• and
• one or more fluid apertures disposed in said tube member, in or adjacent said one or more catheter projections, or in or adjacent said tube member closed end.

A catheter comprising:

• a tube member having an outer diameter and an inner diameter and extending between an open end and a closed end;
• one or more fluted portions disposed in said tube member outer diameter, said fluted portions extending a depth less than a distance between said tube member inner and outer diameters;
• and
• one or more fluid apertures disposed in said tube member, in or adjacent said fluted portions, or in or adjacent said closed end.