The cardiovascular device (1) comprises a diaphragm assembly designed to be inserted into a ventricular cavity (VS) substantially transverse in order to reduce its volume, said diaphragm assembly having a peripheral edge (2B) that can be sealingly engaged on the walls (5) of the cavity 7 and being alternately driven between an active blood thrust position and an inactive position, said assembly being at least partially deformable in response to contractions of the walls (5) and comprising a balloon-shaped elastic body (2; 100; 200; 300; 400) which has an external surface (2A; 103) that defines and encloses an internal cavity (CI; CI2) and which can be configured between a gathered position of minimum bulk, an everted position of maximum bulk and vice-versa, at least one mobile portion (3; 3′) of the peripheral surface which is disposed transverse/diagonal and which is surrounded by the peripheral edge and at least one aperture (3A) for access from the outside to the internal cavity (CI; CI2).

The cardiovascular device (1) comprises a diaphragm assembly designed to be inserted into a ventricular cavity (VS) substantially transverse in order to reduce its volume, said diaphragm assembly having a peripheral edge (2B) that can be sealingly engaged on the walls (5) of the cavity 7 and being alternately driven between an active blood thrust position and an inactive position, said assembly being at least partially deformable in response to contractions of the walls (5) and comprising a balloon-shaped elastic body (2; 100; 200; 300; 400) which has an external surface (2A; 103) that defines and encloses an internal cavity (CI; CI2) and which can be configured between a gathered position of minimum bulk, an everted position of maximum bulk and vice-versa, at least one mobile portion (3; 3′) of the peripheral surface which is disposed transverse/diagonal and which is surrounded by the peripheral edge and at least one aperture (3A) for access from the outside to the internal cavity (CI; CI2).

Intravascular blood pumps systems and methods of use. The blood pump system includes a catheter portion having a distal blood pump with one or more distal collapsible impellers. The system can include a clean purge fluid pathway to carry clean fluid distally to the blood pump and a purge fluid return pathway to carry return fluid proximally into an external motor and out a proximal end of the motor, and optionally to a waste reservoir.

Intravascular blood pumps systems and methods of use. The blood pump system includes a catheter portion having a distal blood pump with one or more distal collapsible impellers. The system can include a clean purge fluid pathway to carry clean fluid distally to the blood pump and a purge fluid return pathway to carry return fluid proximally into an external motor and out a proximal end of the motor, and optionally to a waste reservoir.

Rotary lobe pump, comprising a pump housing (2, 9, 10) with a substantially cylindrical pump chamber (8) and a rotary lobe as rotor (1) with at least two blades (3) arranged opposite each other or evenly distributed in the circumferential direction and at least one sealing valve (4), characterized in that at least two sealing valves (4a, 4b) arranged opposite one another or uniformly distributed in the circumferential direction are provided, the at least two sealing valves (4a, 4b) being rotatable or pivotable, and an inlet duct (11) to at least two inlet openings (6) into the pump chamber (8) and an outlet duct (12) from at least two outlet openings (7) out of the pump chamber (8) being provided axially in a rotor axial tube (18), extending from the opposite axial ends and separated from one another.

Rotary lobe pump, comprising a pump housing (2, 9, 10) with a substantially cylindrical pump chamber (8) and a rotary lobe as rotor (1) with at least two blades (3) arranged opposite each other or evenly distributed in the circumferential direction and at least one sealing valve (4), characterized in that at least two sealing valves (4a, 4b) arranged opposite one another or uniformly distributed in the circumferential direction are provided, the at least two sealing valves (4a, 4b) being rotatable or pivotable, and an inlet duct (11) to at least two inlet openings (6) into the pump chamber (8) and an outlet duct (12) from at least two outlet openings (7) out of the pump chamber (8) being provided axially in a rotor axial tube (18), extending from the opposite axial ends and separated from one another.

A minimally invasive miniaturized percutaneous mechanical circulatory support system for transcatheter delivery of a pump to the heart that actively unloads the left ventricle by pumping blood from the left ventricle into the ascending aorta and systemic circulation. The pump may include a tubular housing, a motor, an impeller configured to be rotated by the motor. The impeller may be rotated by the motor, via a shaft with an annular polymeric seal around the shaft, or via a magnetic drive. The system may have an insertion tool having a tubular body and configured to axially movably receive the circulatory support device, and an introducer sheath configured to axially movably receive the insertion tool.

A minimally invasive miniaturized percutaneous mechanical circulatory support system for transcatheter delivery of a pump to the heart that actively unloads the left ventricle by pumping blood from the left ventricle into the ascending aorta and systemic circulation. The pump may include a tubular housing, a motor, an impeller configured to be rotated by the motor. The impeller may be rotated by the motor, via a shaft with an annular polymeric seal around the shaft, or via a magnetic drive. The system may have an insertion tool having a tubular body and configured to axially movably receive the circulatory support device, and an introducer sheath configured to axially movably receive the insertion tool.

The present technology provides a blood pump device and associated systems and methods of use thereof to assist blood circulation in a patient. The blood pump device includes a flexible member disposed within a housing. Movement of the flexible member in the housing varies the volume of chambers within the housing and effectuates pumping of blood to and from a vessel in fluid connection with a chamber of the blood pump device.

A blood pumping device is described having at least a first pump and a first pump actuator for inducing a blood flow in a body's circulatory system. The pump has one upper chamber having an inlet channel and one lower chamber having an outlet channel. The upper and lower chambers are separated by a movable valve plane provided with a one-way valve. The pump actuator induces movement of the valve plane in an upward and downward direction between the upper and lower chambers in response to control signals from a control unit. When the valve plane moves in an upward direction, the valve opens allowing a flow of blood from the upper to the lower chamber. The lower chamber is provided with a bag-like portion forcing said flow of blood to make a turn of between 110° to 150° before leaving through the outlet channel.