An implantable right ventricular assist device configured to be implanted within the apex or the admission chamber of the right ventricle of a patient's heart, in order to carry the patient's blood from the right ventricle to the pulmonary artery, said device comprising: a percutaneously deliverable centrifugal pump configured to direct the blood from the right ventricle to the pulmonary artery at a flow rate ranging from 1 to 10 L/min, said centrifugal pump comprising: - a body made of a crimpable material, including: - an inlet opening intended to let the blood enter inside de body; - an outlet channel, intended to let the blood exit the body; - a rotatable propeller displaying a diameter ranging from 5 mm to 15mm, configured to carry the blood coming from the right ventricle and the right atrium, through said inlet opening, toward the pulmonary artery, through said outlet channel; - a motor support; and - a motor connected to said rotatable propeller, said motor being configured to use an electrical power ranging from 1 to 10 Watt, allowing said rotatable propeller to carry the blood from the right ventricle to the pulmonary artery with a rotation speed ranging from 5000 to 15000 rpm, - an exit cylinder configured to direct the blood from the right ventricle to the pulmonary artery over a distance between 50 mm and 130 mm; and - a power source connected to said motor and configured to deliver a voltage ranging from 2 to 15 Volt. a percutaneously deliverable centrifugal pump configured to direct the blood from the right ventricle to the pulmonary artery at a flow rate ranging from 1 to 10 L/min, said centrifugal pump comprising: - a body made of a crimpable material, including: - an inlet opening intended to let the blood enter inside de body; - an outlet channel, intended to let the blood exit the body; - a rotatable propeller displaying a diameter ranging from 5 mm to 15mm, configured to carry the blood coming from the right ventricle and the right atrium, through said inlet opening, toward the pulmonary artery, through said outlet channel; - a motor support; and - a motor connected to said rotatable propeller, said motor being configured to use an electrical power ranging from 1 to 10 Watt, allowing said rotatable propeller to carry the blood from the right ventricle to the pulmonary artery with a rotation speed ranging from 5000 to 15000 rpm, - an exit cylinder configured to direct the blood from the right ventricle to the pulmonary artery over a distance between 50 mm and 130 mm; and - a power source connected to said motor and configured to deliver a voltage ranging from 2 to 15 Volt. - a body made of a crimpable material, including: - an inlet opening intended to let the blood enter inside de body; - an outlet channel, intended to let the blood exit the body; - a rotatable propeller displaying a diameter ranging from 5 mm to 15mm, configured to carry the blood coming from the right ventricle and the right atrium, through said inlet opening, toward the pulmonary artery, through said outlet channel; - a motor support; and - a motor connected to said rotatable propeller, said motor being configured to use an electrical power ranging from 1 to 10 Watt, allowing said rotatable propeller to carry the blood from the right ventricle to the pulmonary artery with a rotation speed ranging from 5000 to 15000 rpm, - an exit cylinder configured to direct the blood from the right ventricle to the pulmonary artery over a distance between 50 mm and 130 mm; and - a power source connected to said motor and configured to deliver a voltage ranging from 2 to 15 Volt.