Intraventricular cardiac pump with narrowed head

A heart pump intended to be positioned partially or entirely in a ventricle of a heart and to generate an induced flow of fluid in the direction of the sigmoid valves of the aorta;

• said pump comprising:
• a fixed casing provided with a top part, when the heart pump is positioned vertically, forming a propulsion chamber for propelling the fluid towards the top end, and a bottom part attached in a fixed manner to the top part;
• at least one side opening between the top part and the bottom part and forming a chamber for fluid inlet from the outside towards the propulsion chamber;
• a power unit arranged inside the casing to drive the fluid from the side opening right up to the outlet of the propulsion chamber;
• the propulsion chamber comprises an upper body and an outlet head;
• the outlet head having a narrowed external cross section with respect to an external cross section of the upper body;
• the outlet head having an external cross section the diameter, or the largest distance, of which is comprised between 14 and 16 mm;
• and in that the propulsion chamber is attached in a fixed manner to the bottom part of the casing by means of linking elements the top part of which is directly connected to the bottom end of the propulsion chamber, the outer surface of the propulsion chamber being flush with the linking elements at the place of connection.