Abstract: A pump intended to be immersed in a fluid, including a housing, a brushless motor unit formed by a stator in which first magnetic elements are disposed, a rotor having second magnetic elements intended for magnetic coupling with the first magnetic elements of the stator, a transmission shaft connected to the rotor and constituting, in its upper part, a turbine, the turbine includes, at its apex, an output pivot interacting with a guide fastened to the housing, the guide having a complementary shape to that of the output pivot so as to keep the output pivot stable in rotation and to form a space between the output pivot and the guide, and the guide includes a central opening in the axis of rotation of the output pivot for a passage of fluid from the inside of the housing to the outside via the space and the opening.

Abstract: Disclosed is an assembly for fitting/removing a heart pump in a sleeve secured in an opening in a ventricular wall, the assembly including a guide element with a distal end, a proximal end, and a lumen extending between, and opening at, the distal and proximal ends, the heart pump having a pump body. With this pump body including an assembly element, the assembly includes a gripping unit which can slide in the lumen, the gripping unit having at its free end an assembly part which is complementary with the assembly element, which part is configured to cooperate with the assembly element, and to join this free end to the pump body, in order to permit the gripping and displacement of the heart pump.

Abstract: A sutureless securing device for securing on an opening in a ventricular wall, includes: a hollow main body with an outer surface; a ring received at a first end of the hollow body, this ring being mobile along part of the outer surface of the hollow body; a tubular membrane covering the outer surface, whilst extending between the ring and the second end of the hollow body; a distal end of this tubular membrane, placed on the side of this second end, being self-expandable between a first configuration in which it has a tubular form, and a second configuration in which it defines a first flange extending radially, starting from the hollow body; the other end of this tubular membrane being able to be deformed by the displacement of the ring, such as to form a retention flange, the position of which can vary relative to the first flange.

Abstract: An intraventricular pump including a fixed housing with a top part forming a propulsion chamber propelling fluid towards the top end, and a bottom part forming a stator and connected to the top part, at least one side opening between the top part and the bottom part, and forming an inlet chamber for fluid entry from the outside towards the propulsion chamber, a motor unit formed by the stator in which first magnetic elements are arranged, a bell-shaped rotor including second magnetic elements for magnetic coupling with the stator first magnetic elements, the bell having at least one opening in its top part creating a reverse fluid flow from the inlet chamber to the base of the stator via a rotor-to-stator passage, a transmission shaft including at least one connecting arm holding the bell above the stator, the transmission shaft coinciding with the bell rotational axis being coaxial.

Abstract: In a method for managing a cardiac pump intended to assist the heart of a patient, the cardiac pump sends pressurized blood at a flow rate proportional to the speed of rotation Vrpm of the pump through the aortic valve of the heart. The steps, during a same ventricular systole, include: detecting mitral valve closure, rotational speed Vrpm of the pump being strictly less than a maximum value Vrpm max, increasing Vrpm of the pump such that, at time t2, after the time t corresponding to the closing of the mitral valve, the speed of rotation of the pump is equal, or substantially equal, to the maximum value Vrpm max of the speed of rotation, and keeping the speed of rotation Vrpm of the pump at this maximum value Vrpm max for at least a portion of the time period T during which the aortic valve is open.

Abstract: A turbine for pumping a fluid includes a body designed to move rotationally, a hollow central part which extends through the body from one side to the other and is intended to allow the fluid to pass through the turbine, and at least one blade that is positioned on the inner wall of the body, in the hollow central part, and is designed to circulate the fluid.

Abstract: A heart pump includes a rotative impeller partly inserted into the systemic ventricle, this rotative impeller being equipped with a membrane sutured to the outer wall of the heart in such a way as to secure the rotative impeller to the wall of the heart, a housing arranged inside the systemic ventricle in such a way as to draw up then discharge blood, a motor connected to the housing and arranged partly outside the systemic ventricle in such a way as to facilitate maintenance; an integrated management unit in the epigastric region including a power supply and a rotative impeller control unit; and a wired link between the management unit and the rotative impeller.

Abstract: A cardiac pump having a turbine with internal blades, includes a pump designed to circulate a fluid, including a housing, and a turbine which is arranged in the housing and is designed to move rotationally relative to the housing. The turbine includes a body designed to move rotationally, a hollow central part which extends through the body from one side to the other and is intended to allow the fluid to pass through the turbine, and at least one blade that is positioned on the inner wall of the body, in the hollow central part, and is designed to circulate the fluid.

Abstract: A pump for immersion in a fluid includes—an inductor having guide vanes to induce linear fluid flow; —a rotor with a central, flared body, this rotor being downstream of the inductor relative to the direction of fluid circulation; —a helical blade provided around the central body; this helical blade having a flared external profile and having turns with an increasing winding pitch, and the internal casing volume being complementary to the flared helical blade, —a casing around the rotor; —a diffuser having blades making the flow of fluid linear and disposed downstream of the rotor to evacuate the fluid from the rotor; and—a diffuser insert having blades and an outlet orifice with a diameter less than the inlet diameter of the diffuser insert, the blades directing the fluid from the diffuser towards the orifice to increase the orifice outlet pressure.

Abstract: The heart pump includes: a rotary impeller inserted in the systemic ventricle, the rotary impeller being provided with: a sealing membrane sutured onto the outer wall of the heart so as to secure the rotary impeller to the wall of the heart; a casing arranged inside the systemic ventricle such as to be able to suction and then discharge the blood; a preferably brushless motor connected to the casing and arranged inside the systemic ventricle and/or in the body of the ventricle, so as to facilitate maintenance; a managing unit installed in the epigastric region and including a preferably rechargeable power source and a unit for controlling the rotary impeller; a wired link between the managing unit and the rotary impeller; and a system for transmitting haemodynamic and rhythmic data measured by the heat pump via telemedicine.

Abstract: A heart pump includes a rotative impeller partly inserted into the systemic ventricle, this rotative impeller being equipped with a membrane sutured to the outer wall of the heart in such a way as to secure the rotative impeller to the wall of the heart, a housing arranged inside the systemic ventricle in such a way as to draw up then discharge blood, a motor connected to the housing and arranged partly outside the systemic ventricle in such a way as to facilitate maintenance; an integrated management unit in the epigastric region including a power supply and a rotative impeller control unit; and a wired link between the management unit and the rotative impeller.

Abstract: The heart pump includes: a rotary impeller inserted in the systemic ventricle, the rotary impeller being provided with: a sealing membrane sutured onto the outer wall of the heart so as to secure the rotary impeller to the wall of the heart; a casing arranged inside the systemic ventricle such as to be able to suction and then discharge the blood; a preferably brushless motor connected to the casing and arranged inside the systemic ventricle and/or in the body of the ventricle, so as to facilitate maintenance; a managing unit installed in the epigastric region and including a preferably rechargeable power source and a unit for controlling the rotary impeller; a wired link between the managing unit and the rotary impeller; and a system for transmitting haemodynamic and rhythmic data measured by the heat pump via telemedicine.

Abstract: A heart pump includes: a rotative impeller partly inserted into the systemic ventricle, this rotative impeller being equipped with: a membrane sutured to the outer wall of the heart in such a way as to secure the rotative impeller to the wall of the heart, a housing arranged inside the systemic ventricle in such a way as to draw up then discharge blood, a motor connected to the housing and arranged partly outside the systemic ventricle in such a way as to facilitate maintenance; an integrated management unit in the epigastric region including a power supply and a rotative impeller control unit; and a wired link between the management unit and the rotative impeller.

Abstract: The heart pump includes: a rotary impeller inserted in the systemic ventricle, the rotary impeller being provided with: a sealing membrane sutured onto the outer wall of the heart so as to secure the rotary impeller to the wall of the heart; a casing arranged inside the systemic ventricle such as to be able to suction and then discharge the blood; a preferably brushless motor connected to the casing and arranged inside the systemic ventricle and/or in the body of the ventricle, so as to facilitate maintenance; a managing unit installed in the epigastric region and including a preferably rechargeable power source and a unit for controlling the rotary impeller; a wired link between the managing unit and the rotary impeller; and a system for transmitting haemodynamic and rhythmic data measured by the heat pump via telemedicine.

Abstract: A heart pump includes: a rotative impeller partly inserted into the systemic ventricle, this rotative impeller being equipped with: a membrane sutured to the outer wall of the heart in such a way as to secure the rotative impeller to the wall of the heart, a housing arranged inside the systemic ventricle in such a way as to draw up then discharge blood, a motor connected to the housing and arranged partly outside the systemic ventricle in such a way as to facilitate maintenance; an integrated management unit in the epigastric region including a power supply and a rotative impeller control unit; and a wired link between the management unit and the rotative impeller.