Portacatheters with improved stability that utilize small incisions and are easy to implant

A portacatheter for implantation in a patient through a port incision, comprising:

• a catheter in communication with the portacatheter;
• a base having a width, a length, a back end, and a front end;
• wherein the length is longer than the width;
• a geometric core port and one or more structural extensions,
• wherein the geometric core port has a shape comprising a left side, a right side, a front, a back, a circular base having a diameter, a circular top having a diameter, a height between the circular base and the circular top, and an equatorial level, wherein the left side and the right side extend between the circular base and the circular top;
• wherein the equatorial level corresponds to a plane parallel with the base of the port located near midway between the circular top and the circular base;
• wherein the one or more structural extensions comprise one or more lateral extensions in contiguity with the geometric core port, and optionally comprise one or more base extensions and/or one or more wing extensions;
• wherein one or more lateral extensions project from the right side and the left side of the geometric core port, and the shape of the geometric core port combined with the one or more lateral extensions define a side width, a base width, and a top width, wherein the side width is greater than both the base width and the top width by at least about 2 mm;
• wherein a widest portion of the combined geometric core port and the one or more structural extensions is at or near an equatorial level;
• wherein the portacatheter has a long-axis silhouette in a generally ovoid shape comprising a left side, a right side, and a mid-sagittal plane, wherein over a range from the level of the circular base up to the equatorial level, a lateral distance from the mid-sagittal plane of the portacatheter to an exterior contour of the combined geometric core port and the one or more structural extensions, excluding any base extension, is increasing with increasing height from the level of the circular base;
• and
• wherein any base extension and any wing extension, when present, does not extend laterally beyond the long-axis silhouette of the geometric core port combined with the one or more lateral extensions.