Abstract: A coring device, for forming an opening in a tissue wall, includes a body having a proximal end, a distal end and an internal housing, a coring head having a transection blade and being movable between a rest position and an actuated position, an actuation mechanism for moving the head between the positions and having an actuation rod, at one end of which the head is placed, a lumen extending through at least the proximal end of the body, actuation rod and coring head in order to allow passage of a flexible guide element, and the distal end of the body forms a support for a surgical tool configured to receive a hollow surgical tool with a positive fit and to support this tool to permit linear guiding of the surgical tool during the movement of the latter toward the outside of the coring device.

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: 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: The present document relates to a device for fixing a cardiac pump in an opening of a ventricular wall of a beating heart. The device includes: a hollow main body of overall cylindrical shape having an outer surface, this hollow main body includes a proximal end and a distal end between which said the outer surface extends, at least one portion of the outer surface of the main body intended to be placed inside ventricular cavity, except for its distal end, has a surface relief provided with protuberances and hollows, the distal end of the hollow main body forms a smooth crown having an arithmetic average roughness of less than or equal to 1 ?m in order to stop the colonization of the fixing device by endothelial cells.

Abstract: A medical device for anchoring a cardiac pump in an opening of a ventricular wall of a heart, including a connector to be fitted to the ventricular wall. The connector includes a connection flange and a support skirt. The skirt is to be placed outside the heart when the flange is joined to the ventricular wall. The connector defines a first opening for a part of the body of an insert to pass through. The insert is rigid and defines a second opening for the body of the pump to pass through. The insert includes a distal end that is to be placed inside the heart and a proximal end that is to be placed outside the heart when the insert is joined to the connector. At least one element locks/unlocks the insert in position with respect to the connector when the insert has been introduced into the connector.

Abstract: A ventricular assist assembly, for assisting a heart, includes an anchoring device, a cardiac pump and a stabilizing device. The anchoring device anchors a cardiac pump, is intended to be assembled with an opening in a ventricular wall of the heart, and delimits an internal passage. The cardiac pump is intended to be attached to the anchoring device, is configured for intra-ventricular insertion into the heart, and has a distal end. The cardiac pump extends through the internal passage into the heart when attached to the anchoring device implanted in the opening so that its distal end is placed in a ventricular chamber. The stabilizing device stabilizes the cardiac and includes at least two elongate, biocompatible and flexible connecting members, each elongate connecting member being intended to connect a part of the cardiac pump that is positioned in the ventricular chamber to an internal wall of the ventricular chamber.

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: 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: 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 coring device, for forming an opening in a tissue wall, includes a body having a proximal end, a distal end and an internal housing, a coring head having a transection blade and being movable between a rest position and an actuated position, an actuation mechanism for moving the head between the positions and having an actuation rod, at one end of which the head is placed, a lumen extending through at least the proximal end of the body, actuation rod and coring head in order to allow passage of a flexible guide element, and the distal end of the body forms a support for a surgical tool configured to receive a hollow surgical tool with a positive fit and to support this tool to permit linear guiding of the surgical tool during the movement of the latter toward the outside of the coring device.

Abstract: A medical device, for anchoring a heart pump in an opening of a ventricular wall of a heart, includes a first flange having a hole, an assembly having a hollow body, at the distal end of which is placed a membrane which is self-expandable between a first configuration in which said membrane has a tubular shape, and a second configuration in which it defines a second flange, the first flange being separate from the assembly, the assembly being designed to be at least partially introduced through the hole of the first flange, and a clamping means for connecting the first flange and the proximal end of said hollow body when this assembly has been partially inserted into the hole, the clamping means being configured to slide along the hollow body in such a way as to be pressed against the first flange.

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 ventricular assist assembly, for assisting a heart, includes an anchoring device, a cardiac pump and a stabilizing device. The anchoring device anchors a cardiac pump, is intended to be assembled with an opening in a ventricular wall of the heart, and delimits an internal passage. The cardiac pump is intended to be attached to the anchoring device, is configured for intra-ventricular insertion into the heart, and has a distal end. The cardiac pump extends through the internal passage into the heart when attached to the anchoring device implanted in the opening so that its distal end is placed in a ventricular chamber. The stabilizing device stabilizes the cardiac and includes at least two elongate, biocompatible and flexible connecting members, each elongate connecting member being intended to connect a part of the cardiac pump that is positioned in the ventricular chamber to an internal wall of the ventricular chamber.

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 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.