Left and right side heart support

A cannulation system for cardiac support comprising:

• an inflow cannula including a fluid inlet sized and configured to extend through an atrial septum for accessing an atrium or a ventricle of a heart and a lumen extending proximally from the fluid inlet;
• said inflow cannula being configured to couple to a pump to withdraw blood from the heart through the lumen;
• an outflow cannula configured to couple to the pump and adapted to extend into fluid communication with the arterial system for delivering the withdrawn blood into the arterial system to provide heart support;
• and
• at least one anchor member disposed adjacent the fluid inlet and configured for securing the cannula system in position through the atrial septum.

A cannulation system for cardiac support comprising:

• an inflow cannula including a fluid inlet and a lumen extending proximally from the fluid inlet, the inflow cannula configured to extend through a heart wall to place the fluid inlet in fluid communication with an atrium or a ventricle of a heart;
• said inflow cannula configured to couple to a pump to withdraw blood from the heart through the lumen;
• an outflow cannula configured to couple to the pump and adapted to extend into fluid communication with the arterial system for delivering the withdrawn blood into the arterial system to provide heart support;
• and
• at least one anchor member disposed adjacent the fluid inlet and configured for securing the cannula system in position through the heart wall.

A heart assist system for coupling into fluid communication with a chamber of a heart comprising:

• a blood pump including an inlet;
• an elongate body including a first end, a second end, and a lumen adapted to be coupled into fluid communication with said inlet, said lumen extending along a longitudinal axis, said first and second ends defining openings into said lumen;
• a dilating structure disposed about said elongate body and adapted to be positioned proximally of a portion of said second end in a direction toward said first end, and expanding radially outward from said longitudinal axis and in said direction;
• and
• a ring member disposed around said elongate body and said longitudinal axis, said ring member being spaced from said dilating structure and being adapted for retaining said elongate body in a position relative to a wall of the chamber of the heart.